diff options
Diffstat (limited to 'drivers')
251 files changed, 13960 insertions, 5556 deletions
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 45ad3288c5f..23f0fb84f1c 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -844,7 +844,7 @@ static int acpi_processor_add(struct acpi_device *device) if (!pr) return -ENOMEM; - if (!alloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) { + if (!zalloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) { kfree(pr); return -ENOMEM; } diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 08186ecbaf8..15a23031833 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -77,8 +77,6 @@ static ssize_t ahci_led_store(struct ata_port *ap, const char *buf, size_t size); static ssize_t ahci_transmit_led_message(struct ata_port *ap, u32 state, ssize_t size); -#define MAX_SLOTS 8 -#define MAX_RETRY 15 enum { AHCI_PCI_BAR = 5, @@ -220,6 +218,7 @@ enum { AHCI_HFLAG_NO_HOTPLUG = (1 << 7), /* ignore PxSERR.DIAG.N */ AHCI_HFLAG_SECT255 = (1 << 8), /* max 255 sectors */ AHCI_HFLAG_YES_NCQ = (1 << 9), /* force NCQ cap on */ + AHCI_HFLAG_NO_SUSPEND = (1 << 10), /* don't suspend */ /* ap->flags bits */ @@ -230,6 +229,10 @@ enum { ICH_MAP = 0x90, /* ICH MAP register */ + /* em constants */ + EM_MAX_SLOTS = 8, + EM_MAX_RETRY = 5, + /* em_ctl bits */ EM_CTL_RST = (1 << 9), /* Reset */ EM_CTL_TM = (1 << 8), /* Transmit Message */ @@ -281,8 +284,8 @@ struct ahci_port_priv { unsigned int ncq_saw_dmas:1; unsigned int ncq_saw_sdb:1; u32 intr_mask; /* interrupts to enable */ - struct ahci_em_priv em_priv[MAX_SLOTS];/* enclosure management info - * per PM slot */ + /* enclosure management info per PM slot */ + struct ahci_em_priv em_priv[EM_MAX_SLOTS]; }; static int ahci_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val); @@ -312,7 +315,6 @@ static void ahci_error_handler(struct ata_port *ap); static void ahci_post_internal_cmd(struct ata_queued_cmd *qc); static int ahci_port_resume(struct ata_port *ap); static void ahci_dev_config(struct ata_device *dev); -static unsigned int ahci_fill_sg(struct ata_queued_cmd *qc, void *cmd_tbl); static void ahci_fill_cmd_slot(struct ahci_port_priv *pp, unsigned int tag, u32 opts); #ifdef CONFIG_PM @@ -403,14 +405,14 @@ static struct ata_port_operations ahci_sb600_ops = { #define AHCI_HFLAGS(flags) .private_data = (void *)(flags) static const struct ata_port_info ahci_port_info[] = { - /* board_ahci */ + [board_ahci] = { .flags = AHCI_FLAG_COMMON, .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &ahci_ops, }, - /* board_ahci_vt8251 */ + [board_ahci_vt8251] = { AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP), .flags = AHCI_FLAG_COMMON, @@ -418,7 +420,7 @@ static const struct ata_port_info ahci_port_info[] = { .udma_mask = ATA_UDMA6, .port_ops = &ahci_vt8251_ops, }, - /* board_ahci_ign_iferr */ + [board_ahci_ign_iferr] = { AHCI_HFLAGS (AHCI_HFLAG_IGN_IRQ_IF_ERR), .flags = AHCI_FLAG_COMMON, @@ -426,17 +428,16 @@ static const struct ata_port_info ahci_port_info[] = { .udma_mask = ATA_UDMA6, .port_ops = &ahci_ops, }, - /* board_ahci_sb600 */ + [board_ahci_sb600] = { AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL | - AHCI_HFLAG_32BIT_ONLY | AHCI_HFLAG_NO_MSI | - AHCI_HFLAG_SECT255), + AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255), .flags = AHCI_FLAG_COMMON, .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &ahci_sb600_ops, }, - /* board_ahci_mv */ + [board_ahci_mv] = { AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI | AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP), @@ -446,7 +447,7 @@ static const struct ata_port_info ahci_port_info[] = { .udma_mask = ATA_UDMA6, .port_ops = &ahci_ops, }, - /* board_ahci_sb700, for SB700 and SB800 */ + [board_ahci_sb700] = /* for SB700 and SB800 */ { AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL), .flags = AHCI_FLAG_COMMON, @@ -454,7 +455,7 @@ static const struct ata_port_info ahci_port_info[] = { .udma_mask = ATA_UDMA6, .port_ops = &ahci_sb600_ops, }, - /* board_ahci_mcp65 */ + [board_ahci_mcp65] = { AHCI_HFLAGS (AHCI_HFLAG_YES_NCQ), .flags = AHCI_FLAG_COMMON, @@ -462,7 +463,7 @@ static const struct ata_port_info ahci_port_info[] = { .udma_mask = ATA_UDMA6, .port_ops = &ahci_ops, }, - /* board_ahci_nopmp */ + [board_ahci_nopmp] = { AHCI_HFLAGS (AHCI_HFLAG_NO_PMP), .flags = AHCI_FLAG_COMMON, @@ -1140,12 +1141,12 @@ static void ahci_start_port(struct ata_port *ap) emp = &pp->em_priv[link->pmp]; /* EM Transmit bit maybe busy during init */ - for (i = 0; i < MAX_RETRY; i++) { + for (i = 0; i < EM_MAX_RETRY; i++) { rc = ahci_transmit_led_message(ap, emp->led_state, 4); if (rc == -EBUSY) - udelay(100); + msleep(1); else break; } @@ -1339,7 +1340,7 @@ static ssize_t ahci_transmit_led_message(struct ata_port *ap, u32 state, /* get the slot number from the message */ pmp = (state & EM_MSG_LED_PMP_SLOT) >> 8; - if (pmp < MAX_SLOTS) + if (pmp < EM_MAX_SLOTS) emp = &pp->em_priv[pmp]; else return -EINVAL; @@ -1407,7 +1408,7 @@ static ssize_t ahci_led_store(struct ata_port *ap, const char *buf, /* get the slot number from the message */ pmp = (state & EM_MSG_LED_PMP_SLOT) >> 8; - if (pmp < MAX_SLOTS) + if (pmp < EM_MAX_SLOTS) emp = &pp->em_priv[pmp]; else return -EINVAL; @@ -2316,9 +2317,17 @@ static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg) static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg) { struct ata_host *host = dev_get_drvdata(&pdev->dev); + struct ahci_host_priv *hpriv = host->private_data; void __iomem *mmio = host->iomap[AHCI_PCI_BAR]; u32 ctl; + if (mesg.event & PM_EVENT_SUSPEND && + hpriv->flags & AHCI_HFLAG_NO_SUSPEND) { + dev_printk(KERN_ERR, &pdev->dev, + "BIOS update required for suspend/resume\n"); + return -EIO; + } + if (mesg.event & PM_EVENT_SLEEP) { /* AHCI spec rev1.1 section 8.3.3: * Software must disable interrupts prior to requesting a @@ -2575,6 +2584,51 @@ static void ahci_p5wdh_workaround(struct ata_host *host) } } +/* + * SB600 ahci controller on ASUS M2A-VM can't do 64bit DMA with older + * BIOS. The oldest version known to be broken is 0901 and working is + * 1501 which was released on 2007-10-26. Force 32bit DMA on anything + * older than 1501. Please read bko#9412 for more info. + */ +static bool ahci_asus_m2a_vm_32bit_only(struct pci_dev *pdev) +{ + static const struct dmi_system_id sysids[] = { + { + .ident = "ASUS M2A-VM", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, + "ASUSTeK Computer INC."), + DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"), + }, + }, + { } + }; + const char *cutoff_mmdd = "10/26"; + const char *date; + int year; + + if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) || + !dmi_check_system(sysids)) + return false; + + /* + * Argh.... both version and date are free form strings. + * Let's hope they're using the same date format across + * different versions. + */ + date = dmi_get_system_info(DMI_BIOS_DATE); + year = dmi_get_year(DMI_BIOS_DATE); + if (date && strlen(date) >= 10 && date[2] == '/' && date[5] == '/' && + (year > 2007 || + (year == 2007 && strncmp(date, cutoff_mmdd, 5) >= 0))) + return false; + + dev_printk(KERN_WARNING, &pdev->dev, "ASUS M2A-VM: BIOS too old, " + "forcing 32bit DMA, update BIOS\n"); + + return true; +} + static bool ahci_broken_system_poweroff(struct pci_dev *pdev) { static const struct dmi_system_id broken_systems[] = { @@ -2610,6 +2664,63 @@ static bool ahci_broken_system_poweroff(struct pci_dev *pdev) return false; } +static bool ahci_broken_suspend(struct pci_dev *pdev) +{ + static const struct dmi_system_id sysids[] = { + /* + * On HP dv[4-6] and HDX18 with earlier BIOSen, link + * to the harddisk doesn't become online after + * resuming from STR. Warn and fail suspend. + */ + { + .ident = "dv4", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, + "HP Pavilion dv4 Notebook PC"), + }, + .driver_data = "F.30", /* cutoff BIOS version */ + }, + { + .ident = "dv5", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, + "HP Pavilion dv5 Notebook PC"), + }, + .driver_data = "F.16", /* cutoff BIOS version */ + }, + { + .ident = "dv6", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, + "HP Pavilion dv6 Notebook PC"), + }, + .driver_data = "F.21", /* cutoff BIOS version */ + }, + { + .ident = "HDX18", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, + "HP HDX18 Notebook PC"), + }, + .driver_data = "F.23", /* cutoff BIOS version */ + }, + { } /* terminate list */ + }; + const struct dmi_system_id *dmi = dmi_first_match(sysids); + const char *ver; + + if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2)) + return false; + + ver = dmi_get_system_info(DMI_BIOS_VERSION); + + return !ver || strcmp(ver, dmi->driver_data) < 0; +} + static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { static int printed_version; @@ -2678,6 +2789,10 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (board_id == board_ahci_sb700 && pdev->revision >= 0x40) hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL; + /* apply ASUS M2A_VM quirk */ + if (ahci_asus_m2a_vm_32bit_only(pdev)) + hpriv->flags |= AHCI_HFLAG_32BIT_ONLY; + if (!(hpriv->flags & AHCI_HFLAG_NO_MSI)) pci_enable_msi(pdev); @@ -2715,6 +2830,12 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) "quirky BIOS, skipping spindown on poweroff\n"); } + if (ahci_broken_suspend(pdev)) { + hpriv->flags |= AHCI_HFLAG_NO_SUSPEND; + dev_printk(KERN_WARNING, &pdev->dev, + "BIOS update required for suspend/resume\n"); + } + /* CAP.NP sometimes indicate the index of the last enabled * port, at other times, that of the last possible port, so * determining the maximum port number requires looking at diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index d51a17c0f59..d0a14cf2bd7 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -223,10 +223,8 @@ static const struct pci_device_id piix_pci_tbl[] = { /* ICH8 Mobile PATA Controller */ { 0x8086, 0x2850, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 }, - /* NOTE: The following PCI ids must be kept in sync with the - * list in drivers/pci/quirks.c. - */ - + /* SATA ports */ + /* 82801EB (ICH5) */ { 0x8086, 0x24d1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_sata }, /* 82801EB (ICH5) */ @@ -1455,6 +1453,15 @@ static bool piix_broken_system_poweroff(struct pci_dev *pdev) /* PCI slot number of the controller */ .driver_data = (void *)0x1FUL, }, + { + .ident = "HP Compaq nc6000", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nc6000"), + }, + /* PCI slot number of the controller */ + .driver_data = (void *)0x1FUL, + }, { } /* terminate list */ }; @@ -1500,8 +1507,8 @@ static int __devinit piix_init_one(struct pci_dev *pdev, dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); - /* no hotplugging support (FIXME) */ - if (!in_module_init) + /* no hotplugging support for later devices (FIXME) */ + if (!in_module_init && ent->driver_data >= ich5_sata) return -ENODEV; if (piix_broken_system_poweroff(pdev)) { @@ -1582,6 +1589,7 @@ static int __devinit piix_init_one(struct pci_dev *pdev, host->ports[1]->mwdma_mask = 0; host->ports[1]->udma_mask = 0; } + host->flags |= ATA_HOST_PARALLEL_SCAN; pci_set_master(pdev); return ata_pci_sff_activate_host(host, ata_sff_interrupt, &piix_sht); diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index c9242301cfa..ca4d208ddf3 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -5031,7 +5031,6 @@ int ata_qc_complete_multiple(struct ata_port *ap, u32 qc_active) { int nr_done = 0; u32 done_mask; - int i; done_mask = ap->qc_active ^ qc_active; @@ -5041,16 +5040,16 @@ int ata_qc_complete_multiple(struct ata_port *ap, u32 qc_active) return -EINVAL; } - for (i = 0; i < ATA_MAX_QUEUE; i++) { + while (done_mask) { struct ata_queued_cmd *qc; + unsigned int tag = __ffs(done_mask); - if (!(done_mask & (1 << i))) - continue; - - if ((qc = ata_qc_from_tag(ap, i))) { + qc = ata_qc_from_tag(ap, tag); + if (qc) { ata_qc_complete(qc); nr_done++; } + done_mask &= ~(1 << tag); } return nr_done; diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 342316064e9..d0dfeef55db 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -1084,7 +1084,7 @@ static int atapi_drain_needed(struct request *rq) if (likely(!blk_pc_request(rq))) return 0; - if (!rq->data_len || (rq->cmd_flags & REQ_RW)) + if (!blk_rq_bytes(rq) || (rq->cmd_flags & REQ_RW)) return 0; return atapi_cmd_type(rq->cmd[0]) == ATAPI_MISC; diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index bb18415d3d6..bbbb1fab175 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -727,17 +727,23 @@ unsigned int ata_sff_data_xfer(struct ata_device *dev, unsigned char *buf, else iowrite16_rep(data_addr, buf, words); - /* Transfer trailing 1 byte, if any. */ + /* Transfer trailing byte, if any. */ if (unlikely(buflen & 0x01)) { - __le16 align_buf[1] = { 0 }; - unsigned char *trailing_buf = buf + buflen - 1; + unsigned char pad[2]; + /* Point buf to the tail of buffer */ + buf += buflen - 1; + + /* + * Use io*16_rep() accessors here as well to avoid pointlessly + * swapping bytes to and fro on the big endian machines... + */ if (rw == READ) { - align_buf[0] = cpu_to_le16(ioread16(data_addr)); - memcpy(trailing_buf, align_buf, 1); + ioread16_rep(data_addr, pad, 1); + *buf = pad[0]; } else { - memcpy(align_buf, trailing_buf, 1); - iowrite16(le16_to_cpu(align_buf[0]), data_addr); + pad[0] = *buf; + iowrite16_rep(data_addr, pad, 1); } words++; } diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c index 751b7ea4816..fc9c5d6d7d8 100644 --- a/drivers/ata/pata_ali.c +++ b/drivers/ata/pata_ali.c @@ -497,14 +497,16 @@ static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id) }; /* Revision 0x20 added DMA */ static const struct ata_port_info info_20 = { - .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48, + .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48 | + ATA_FLAG_IGN_SIMPLEX, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, .port_ops = &ali_20_port_ops }; /* Revision 0x20 with support logic added UDMA */ static const struct ata_port_info info_20_udma = { - .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48, + .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48 | + ATA_FLAG_IGN_SIMPLEX, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA2, @@ -512,7 +514,8 @@ static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id) }; /* Revision 0xC2 adds UDMA66 */ static const struct ata_port_info info_c2 = { - .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48, + .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48 | + ATA_FLAG_IGN_SIMPLEX, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA4, @@ -520,7 +523,8 @@ static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id) }; /* Revision 0xC3 is UDMA66 for now */ static const struct ata_port_info info_c3 = { - .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48, + .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48 | + ATA_FLAG_IGN_SIMPLEX, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA4, @@ -528,7 +532,8 @@ static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id) }; /* Revision 0xC4 is UDMA100 */ static const struct ata_port_info info_c4 = { - .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48, + .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48 | + ATA_FLAG_IGN_SIMPLEX, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA5, @@ -536,7 +541,7 @@ static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id) }; /* Revision 0xC5 is UDMA133 with LBA48 DMA */ static const struct ata_port_info info_c5 = { - .flags = ATA_FLAG_SLAVE_POSS, + .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_IGN_SIMPLEX, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA6, diff --git a/drivers/ata/pata_efar.c b/drivers/ata/pata_efar.c index 2085e0a3a05..2a6412f5d11 100644 --- a/drivers/ata/pata_efar.c +++ b/drivers/ata/pata_efar.c @@ -22,7 +22,7 @@ #include <linux/ata.h> #define DRV_NAME "pata_efar" -#define DRV_VERSION "0.4.4" +#define DRV_VERSION "0.4.5" /** * efar_pre_reset - Enable bits @@ -98,18 +98,17 @@ static void efar_set_piomode (struct ata_port *ap, struct ata_device *adev) { 2, 1 }, { 2, 3 }, }; - if (pio > 2) - control |= 1; /* TIME1 enable */ + if (pio > 1) + control |= 1; /* TIME */ if (ata_pio_need_iordy(adev)) /* PIO 3/4 require IORDY */ - control |= 2; /* IE enable */ - /* Intel specifies that the PPE functionality is for disk only */ + control |= 2; /* IE */ + /* Intel specifies that the prefetch/posting is for disk only */ if (adev->class == ATA_DEV_ATA) - control |= 4; /* PPE enable */ + control |= 4; /* PPE */ pci_read_config_word(dev, idetm_port, &idetm_data); - /* Enable PPE, IE and TIME as appropriate */ - + /* Set PPE, IE, and TIME as appropriate */ if (adev->devno == 0) { idetm_data &= 0xCCF0; idetm_data |= control; @@ -129,7 +128,7 @@ static void efar_set_piomode (struct ata_port *ap, struct ata_device *adev) pci_write_config_byte(dev, 0x44, slave_data); } - idetm_data |= 0x4000; /* Ensure SITRE is enabled */ + idetm_data |= 0x4000; /* Ensure SITRE is set */ pci_write_config_word(dev, idetm_port, idetm_data); } diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c index f72c6c5b820..6932e56d179 100644 --- a/drivers/ata/pata_legacy.c +++ b/drivers/ata/pata_legacy.c @@ -48,6 +48,7 @@ * */ +#include <linux/async.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/pci.h> @@ -1028,6 +1029,7 @@ static __init int legacy_init_one(struct legacy_probe *probe) &legacy_sht); if (ret) goto fail; + async_synchronize_full(); ld->platform_dev = pdev; /* Nothing found means we drop the port as its probably not there */ diff --git a/drivers/ata/pata_netcell.c b/drivers/ata/pata_netcell.c index bdb236957cb..f0d52f72f5b 100644 --- a/drivers/ata/pata_netcell.c +++ b/drivers/ata/pata_netcell.c @@ -20,13 +20,24 @@ /* No PIO or DMA methods needed for this device */ +static unsigned int netcell_read_id(struct ata_device *adev, + struct ata_taskfile *tf, u16 *id) +{ + unsigned int err_mask = ata_do_dev_read_id(adev, tf, id); + /* Firmware forgets to mark words 85-87 valid */ + if (err_mask == 0) + id[ATA_ID_CSF_DEFAULT] |= 0x4000; + return err_mask; +} + static struct scsi_host_template netcell_sht = { ATA_BMDMA_SHT(DRV_NAME), }; static struct ata_port_operations netcell_ops = { .inherits = &ata_bmdma_port_ops, - .cable_detect = ata_cable_80wire, + .cable_detect = ata_cable_80wire, + .read_id = netcell_read_id, }; diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index 6cda12ba812..b2d11f300c3 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c @@ -305,8 +305,8 @@ static irqreturn_t nv_ck804_interrupt(int irq, void *dev_instance); static int nv_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val); static int nv_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val); -static int nv_noclassify_hardreset(struct ata_link *link, unsigned int *class, - unsigned long deadline); +static int nv_hardreset(struct ata_link *link, unsigned int *class, + unsigned long deadline); static void nv_nf2_freeze(struct ata_port *ap); static void nv_nf2_thaw(struct ata_port *ap); static void nv_ck804_freeze(struct ata_port *ap); @@ -406,49 +406,82 @@ static struct scsi_host_template nv_swncq_sht = { .slave_configure = nv_swncq_slave_config, }; -static struct ata_port_operations nv_common_ops = { +/* + * NV SATA controllers have various different problems with hardreset + * protocol depending on the specific controller and device. + * + * GENERIC: + * + * bko11195 reports that link doesn't come online after hardreset on + * generic nv's and there have been several other similar reports on + * linux-ide. + * + * bko12351#c23 reports that warmplug on MCP61 doesn't work with + * softreset. + * + * NF2/3: + * + * bko3352 reports nf2/3 controllers can't determine device signature + * reliably after hardreset. The following thread reports detection + * failure on cold boot with the standard debouncing timing. + * + * http://thread.gmane.org/gmane.linux.ide/34098 + * + * bko12176 reports that hardreset fails to bring up the link during + * boot on nf2. + * + * CK804: + * + * For initial probing after boot and hot plugging, hardreset mostly + * works fine on CK804 but curiously, reprobing on the initial port + * by rescanning or rmmod/insmod fails to acquire the initial D2H Reg + * FIS in somewhat undeterministic way. + * + * SWNCQ: + * + * bko12351 reports that when SWNCQ is enabled, for hotplug to work, + * hardreset should be used and hardreset can't report proper + * signature, which suggests that mcp5x is closer to nf2 as long as + * reset quirkiness is concerned. + * + * bko12703 reports that boot probing fails for intel SSD with + * hardreset. Link fails to come online. Softreset works fine. + * + * The failures are varied but the following patterns seem true for + * all flavors. + * + * - Softreset during boot always works. + * + * - Hardreset during boot sometimes fails to bring up the link on + * certain comibnations and device signature acquisition is + * unreliable. + * + * - Hardreset is often necessary after hotplug. + * + * So, preferring softreset for boot probing and error handling (as + * hardreset might bring down the link) but using hardreset for + * post-boot probing should work around the above issues in most + * cases. Define nv_hardreset() which only kicks in for post-boot + * probing and use it for all variants. + */ +static struct ata_port_operations nv_generic_ops = { .inherits = &ata_bmdma_port_ops, .lost_interrupt = ATA_OP_NULL, .scr_read = nv_scr_read, .scr_write = nv_scr_write, + .hardreset = nv_hardreset, }; -/* OSDL bz11195 reports that link doesn't come online after hardreset - * on generic nv's and there have been several other similar reports - * on linux-ide. Disable hardreset for generic nv's. - */ -static struct ata_port_operations nv_generic_ops = { - .inherits = &nv_common_ops, - .hardreset = ATA_OP_NULL, -}; - -/* nf2 is ripe with hardreset related problems. - * - * kernel bz#3352 reports nf2/3 controllers can't determine device - * signature reliably. The following thread reports detection failure - * on cold boot with the standard debouncing timing. - * - * http://thread.gmane.org/gmane.linux.ide/34098 - * - * And bz#12176 reports that hardreset simply doesn't work on nf2. - * Give up on it and just don't do hardreset. - */ static struct ata_port_operations nv_nf2_ops = { .inherits = &nv_generic_ops, .freeze = nv_nf2_freeze, .thaw = nv_nf2_thaw, }; -/* For initial probing after boot and hot plugging, hardreset mostly - * works fine on CK804 but curiously, reprobing on the initial port by - * rescanning or rmmod/insmod fails to acquire the initial D2H Reg FIS - * in somewhat undeterministic way. Use noclassify hardreset. - */ static struct ata_port_operations nv_ck804_ops = { - .inherits = &nv_common_ops, + .inherits = &nv_generic_ops, .freeze = nv_ck804_freeze, .thaw = nv_ck804_thaw, - .hardreset = nv_noclassify_hardreset, .host_stop = nv_ck804_host_stop, }; @@ -476,19 +509,8 @@ static struct ata_port_operations nv_adma_ops = { .host_stop = nv_adma_host_stop, }; -/* Kernel bz#12351 reports that when SWNCQ is enabled, for hotplug to - * work, hardreset should be used and hardreset can't report proper - * signature, which suggests that mcp5x is closer to nf2 as long as - * reset quirkiness is concerned. Define separate ops for mcp5x with - * nv_noclassify_hardreset(). - */ -static struct ata_port_operations nv_mcp5x_ops = { - .inherits = &nv_common_ops, - .hardreset = nv_noclassify_hardreset, -}; - static struct ata_port_operations nv_swncq_ops = { - .inherits = &nv_mcp5x_ops, + .inherits = &nv_generic_ops, .qc_defer = ata_std_qc_defer, .qc_prep = nv_swncq_qc_prep, @@ -557,7 +579,7 @@ static const struct ata_port_info nv_port_info[] = { .pio_mask = NV_PIO_MASK, .mwdma_mask = NV_MWDMA_MASK, .udma_mask = NV_UDMA_MASK, - .port_ops = &nv_mcp5x_ops, + .port_ops = &nv_generic_ops, .private_data = NV_PI_PRIV(nv_generic_interrupt, &nv_sht), }, /* SWNCQ */ @@ -1559,15 +1581,24 @@ static int nv_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val) return 0; } -static int nv_noclassify_hardreset(struct ata_link *link, unsigned int *class, - unsigned long deadline) +static int nv_hardreset(struct ata_link *link, unsigned int *class, + unsigned long deadline) { - bool online; - int rc; + struct ata_eh_context *ehc = &link->eh_context; - rc = sata_link_hardreset(link, sata_deb_timing_hotplug, deadline, - &online, NULL); - return online ? -EAGAIN : rc; + /* Do hardreset iff it's post-boot probing, please read the + * comment above port ops for details. + */ + if (!(link->ap->pflags & ATA_PFLAG_LOADING) && + !ata_dev_enabled(link->device)) + sata_link_hardreset(link, sata_deb_timing_hotplug, deadline, + NULL, NULL); + else if (!(ehc->i.flags & ATA_EHI_QUIET)) + ata_link_printk(link, KERN_INFO, + "nv: skipping hardreset on occupied port\n"); + + /* device signature acquisition is unreliable */ + return -EAGAIN; } static void nv_nf2_freeze(struct ata_port *ap) diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c index e67ce8e5caa..030ec079b18 100644 --- a/drivers/ata/sata_sil.c +++ b/drivers/ata/sata_sil.c @@ -183,7 +183,7 @@ static struct scsi_host_template sil_sht = { }; static struct ata_port_operations sil_ops = { - .inherits = &ata_bmdma_port_ops, + .inherits = &ata_bmdma32_port_ops, .dev_config = sil_dev_config, .set_mode = sil_set_mode, .bmdma_setup = sil_bmdma_setup, diff --git a/drivers/ata/sata_sx4.c b/drivers/ata/sata_sx4.c index eb05a3c82a9..bbcf970068a 100644 --- a/drivers/ata/sata_sx4.c +++ b/drivers/ata/sata_sx4.c @@ -193,6 +193,7 @@ enum { PDC_TIMER_MASK_INT, }; +#define ECC_ERASE_BUF_SZ (128 * 1024) struct pdc_port_priv { u8 dimm_buf[(ATA_PRD_SZ * ATA_MAX_PRD) + 512]; @@ -1280,7 +1281,6 @@ static unsigned int pdc20621_dimm_init(struct ata_host *host) { int speed, size, length; u32 addr, spd0, pci_status; - u32 tmp = 0; u32 time_period = 0; u32 tcount = 0; u32 ticks = 0; @@ -1395,14 +1395,17 @@ static unsigned int pdc20621_dimm_init(struct ata_host *host) pdc20621_i2c_read(host, PDC_DIMM0_SPD_DEV_ADDRESS, PDC_DIMM_SPD_TYPE, &spd0); if (spd0 == 0x02) { + void *buf; VPRINTK("Start ECC initialization\n"); addr = 0; length = size * 1024 * 1024; + buf = kzalloc(ECC_ERASE_BUF_SZ, GFP_KERNEL); while (addr < length) { - pdc20621_put_to_dimm(host, (void *) &tmp, addr, - sizeof(u32)); - addr += sizeof(u32); + pdc20621_put_to_dimm(host, buf, addr, + ECC_ERASE_BUF_SZ); + addr += ECC_ERASE_BUF_SZ; } + kfree(buf); VPRINTK("Finish ECC initialization\n"); } return 0; diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c index f22ed6cc69f..668dc234b8e 100644 --- a/drivers/block/DAC960.c +++ b/drivers/block/DAC960.c @@ -3321,7 +3321,7 @@ static int DAC960_process_queue(DAC960_Controller_T *Controller, struct request_ DAC960_Command_T *Command; while(1) { - Request = elv_next_request(req_q); + Request = blk_peek_request(req_q); if (!Request) return 1; @@ -3338,10 +3338,10 @@ static int DAC960_process_queue(DAC960_Controller_T *Controller, struct request_ } Command->Completion = Request->end_io_data; Command->LogicalDriveNumber = (long)Request->rq_disk->private_data; - Command->BlockNumber = Request->sector; - Command->BlockCount = Request->nr_sectors; + Command->BlockNumber = blk_rq_pos(Request); + Command->BlockCount = blk_rq_sectors(Request); Command->Request = Request; - blkdev_dequeue_request(Request); + blk_start_request(Request); Command->SegmentCount = blk_rq_map_sg(req_q, Command->Request, Command->cmd_sglist); /* pci_map_sg MAY change the value of SegCount */ @@ -3431,7 +3431,7 @@ static void DAC960_queue_partial_rw(DAC960_Command_T *Command) * successfully as possible. */ Command->SegmentCount = 1; - Command->BlockNumber = Request->sector; + Command->BlockNumber = blk_rq_pos(Request); Command->BlockCount = 1; DAC960_QueueReadWriteCommand(Command); return; diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index ddea8e485cc..f42fa50d355 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -412,7 +412,7 @@ config ATA_OVER_ETH config MG_DISK tristate "mGine mflash, gflash support" - depends on ARM && ATA && GPIOLIB + depends on ARM && GPIOLIB help mGine mFlash(gFlash) block device driver diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c index 8df436ff706..9c6e5b0fe89 100644 --- a/drivers/block/amiflop.c +++ b/drivers/block/amiflop.c @@ -112,8 +112,6 @@ module_param(fd_def_df0, ulong, 0); MODULE_LICENSE("GPL"); static struct request_queue *floppy_queue; -#define QUEUE (floppy_queue) -#define CURRENT elv_next_request(floppy_queue) /* * Macros @@ -1335,64 +1333,60 @@ static int get_track(int drive, int track) static void redo_fd_request(void) { + struct request *rq; unsigned int cnt, block, track, sector; int drive; struct amiga_floppy_struct *floppy; char *data; unsigned long flags; + int err; - repeat: - if (!CURRENT) { +next_req: + rq = blk_fetch_request(floppy_queue); + if (!rq) { /* Nothing left to do */ return; } - floppy = CURRENT->rq_disk->private_data; + floppy = rq->rq_disk->private_data; drive = floppy - unit; +next_segment: /* Here someone could investigate to be more efficient */ - for (cnt = 0; cnt < CURRENT->current_nr_sectors; cnt++) { + for (cnt = 0, err = 0; cnt < blk_rq_cur_sectors(rq); cnt++) { #ifdef DEBUG printk("fd: sector %ld + %d requested for %s\n", - CURRENT->sector,cnt, - (rq_data_dir(CURRENT) == READ) ? "read" : "write"); + blk_rq_pos(rq), cnt, + (rq_data_dir(rq) == READ) ? "read" : "write"); #endif - block = CURRENT->sector + cnt; + block = blk_rq_pos(rq) + cnt; if ((int)block > floppy->blocks) { - end_request(CURRENT, 0); - goto repeat; + err = -EIO; + break; } track = block / (floppy->dtype->sects * floppy->type->sect_mult); sector = block % (floppy->dtype->sects * floppy->type->sect_mult); - data = CURRENT->buffer + 512 * cnt; + data = rq->buffer + 512 * cnt; #ifdef DEBUG printk("access to track %d, sector %d, with buffer at " "0x%08lx\n", track, sector, data); #endif - if ((rq_data_dir(CURRENT) != READ) && (rq_data_dir(CURRENT) != WRITE)) { - printk(KERN_WARNING "do_fd_request: unknown command\n"); - end_request(CURRENT, 0); - goto repeat; - } if (get_track(drive, track) == -1) { - end_request(CURRENT, 0); - goto repeat; + err = -EIO; + break; } - switch (rq_data_dir(CURRENT)) { - case READ: + if (rq_data_dir(rq) == READ) { memcpy(data, floppy->trackbuf + sector * 512, 512); - break; - - case WRITE: + } else { memcpy(floppy->trackbuf + sector * 512, data, 512); /* keep the drive spinning while writes are scheduled */ if (!fd_motor_on(drive)) { - end_request(CURRENT, 0); - goto repeat; + err = -EIO; + break; } /* * setup a callback to write the track buffer @@ -1404,14 +1398,12 @@ static void redo_fd_request(void) /* reset the timer */ mod_timer (flush_track_timer + drive, jiffies + 1); local_irq_restore(flags); - break; } } - CURRENT->nr_sectors -= CURRENT->current_nr_sectors; - CURRENT->sector += CURRENT->current_nr_sectors; - end_request(CURRENT, 1); - goto repeat; + if (__blk_end_request_cur(rq, err)) + goto next_segment; + goto next_req; } static void do_fd_request(struct request_queue * q) diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c index 4234c11c1e4..f5e7180d7f4 100644 --- a/drivers/block/ataflop.c +++ b/drivers/block/ataflop.c @@ -79,9 +79,7 @@ #undef DEBUG static struct request_queue *floppy_queue; - -#define QUEUE (floppy_queue) -#define CURRENT elv_next_request(floppy_queue) +static struct request *fd_request; /* Disk types: DD, HD, ED */ static struct atari_disk_type { @@ -376,6 +374,12 @@ static DEFINE_TIMER(readtrack_timer, fd_readtrack_check, 0, 0); static DEFINE_TIMER(timeout_timer, fd_times_out, 0, 0); static DEFINE_TIMER(fd_timer, check_change, 0, 0); +static void fd_end_request_cur(int err) +{ + if (!__blk_end_request_cur(fd_request, err)) + fd_request = NULL; +} + static inline void start_motor_off_timer(void) { mod_timer(&motor_off_timer, jiffies + FD_MOTOR_OFF_DELAY); @@ -606,15 +610,15 @@ static void fd_error( void ) return; } - if (!CURRENT) + if (!fd_request) return; - CURRENT->errors++; - if (CURRENT->errors >= MAX_ERRORS) { + fd_request->errors++; + if (fd_request->errors >= MAX_ERRORS) { printk(KERN_ERR "fd%d: too many errors.\n", SelectedDrive ); - end_request(CURRENT, 0); + fd_end_request_cur(-EIO); } - else if (CURRENT->errors == RECALIBRATE_ERRORS) { + else if (fd_request->errors == RECALIBRATE_ERRORS) { printk(KERN_WARNING "fd%d: recalibrating\n", SelectedDrive ); if (SelectedDrive != -1) SUD.track = -1; @@ -725,16 +729,14 @@ static void do_fd_action( int drive ) if (IS_BUFFERED( drive, ReqSide, ReqTrack )) { if (ReqCmd == READ) { copy_buffer( SECTOR_BUFFER(ReqSector), ReqData ); - if (++ReqCnt < CURRENT->current_nr_sectors) { + if (++ReqCnt < blk_rq_cur_sectors(fd_request)) { /* read next sector */ setup_req_params( drive ); goto repeat; } else { /* all sectors finished */ - CURRENT->nr_sectors -= CURRENT->current_nr_sectors; - CURRENT->sector += CURRENT->current_nr_sectors; - end_request(CURRENT, 1); + fd_end_request_cur(0); redo_fd_request(); return; } @@ -1132,16 +1134,14 @@ static void fd_rwsec_done1(int status) } } - if (++ReqCnt < CURRENT->current_nr_sectors) { + if (++ReqCnt < blk_rq_cur_sectors(fd_request)) { /* read next sector */ setup_req_params( SelectedDrive ); do_fd_action( SelectedDrive ); } else { /* all sectors finished */ - CURRENT->nr_sectors -= CURRENT->current_nr_sectors; - CURRENT->sector += CURRENT->current_nr_sectors; - end_request(CURRENT, 1); + fd_end_request_cur(0); redo_fd_request(); } return; @@ -1382,7 +1382,7 @@ static void setup_req_params( int drive ) ReqData = ReqBuffer + 512 * ReqCnt; if (UseTrackbuffer) - read_track = (ReqCmd == READ && CURRENT->errors == 0); + read_track = (ReqCmd == READ && fd_request->errors == 0); else read_track = 0; @@ -1396,25 +1396,27 @@ static void redo_fd_request(void) int drive, type; struct atari_floppy_struct *floppy; - DPRINT(("redo_fd_request: CURRENT=%p dev=%s CURRENT->sector=%ld\n", - CURRENT, CURRENT ? CURRENT->rq_disk->disk_name : "", - CURRENT ? CURRENT->sector : 0 )); + DPRINT(("redo_fd_request: fd_request=%p dev=%s fd_request->sector=%ld\n", + fd_request, fd_request ? fd_request->rq_disk->disk_name : "", + fd_request ? blk_rq_pos(fd_request) : 0 )); IsFormatting = 0; repeat: + if (!fd_request) { + fd_request = blk_fetch_request(floppy_queue); + if (!fd_request) + goto the_end; + } - if (!CURRENT) - goto the_end; - - floppy = CURRENT->rq_disk->private_data; + floppy = fd_request->rq_disk->private_data; drive = floppy - unit; type = floppy->type; if (!UD.connected) { /* drive not connected */ printk(KERN_ERR "Unknown Device: fd%d\n", drive ); - end_request(CURRENT, 0); + fd_end_request_cur(-EIO); goto repeat; } @@ -1430,12 +1432,12 @@ repeat: /* user supplied disk type */ if (--type >= NUM_DISK_MINORS) { printk(KERN_WARNING "fd%d: invalid disk format", drive ); - end_request(CURRENT, 0); + fd_end_request_cur(-EIO); goto repeat; } if (minor2disktype[type].drive_types > DriveType) { printk(KERN_WARNING "fd%d: unsupported disk format", drive ); - end_request(CURRENT, 0); + fd_end_request_cur(-EIO); goto repeat; } type = minor2disktype[type].index; @@ -1444,8 +1446,8 @@ repeat: UD.autoprobe = 0; } - if (CURRENT->sector + 1 > UDT->blocks) { - end_request(CURRENT, 0); + if (blk_rq_pos(fd_request) + 1 > UDT->blocks) { + fd_end_request_cur(-EIO); goto repeat; } @@ -1453,9 +1455,9 @@ repeat: del_timer( &motor_off_timer ); ReqCnt = 0; - ReqCmd = rq_data_dir(CURRENT); - ReqBlock = CURRENT->sector; - ReqBuffer = CURRENT->buffer; + ReqCmd = rq_data_dir(fd_request); + ReqBlock = blk_rq_pos(fd_request); + ReqBuffer = fd_request->buffer; setup_req_params( drive ); do_fd_action( drive ); diff --git a/drivers/block/brd.c b/drivers/block/brd.c index 5f7e64ba87e..4bf8705b3ac 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -407,12 +407,7 @@ static int __init ramdisk_size(char *str) rd_size = simple_strtol(str, NULL, 0); return 1; } -static int __init ramdisk_size2(char *str) -{ - return ramdisk_size(str); -} -__setup("ramdisk=", ramdisk_size); -__setup("ramdisk_size=", ramdisk_size2); +__setup("ramdisk_size=", ramdisk_size); #endif /* diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 4d4d5e0d3fa..b22cec97ea1 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -180,11 +180,13 @@ static void __devinit cciss_interrupt_mode(ctlr_info_t *, struct pci_dev *, __u32); static void start_io(ctlr_info_t *h); static int sendcmd(__u8 cmd, int ctlr, void *buff, size_t size, - unsigned int use_unit_num, unsigned int log_unit, __u8 page_code, unsigned char *scsi3addr, int cmd_type); static int sendcmd_withirq(__u8 cmd, int ctlr, void *buff, size_t size, - unsigned int use_unit_num, unsigned int log_unit, - __u8 page_code, int cmd_type); + __u8 page_code, unsigned char scsi3addr[], + int cmd_type); +static int sendcmd_withirq_core(ctlr_info_t *h, CommandList_struct *c, + int attempt_retry); +static int process_sendcmd_error(ctlr_info_t *h, CommandList_struct *c); static void fail_all_cmds(unsigned long ctlr); static int scan_thread(void *data); @@ -437,6 +439,194 @@ static void __devinit cciss_procinit(int i) } #endif /* CONFIG_PROC_FS */ +#define MAX_PRODUCT_NAME_LEN 19 + +#define to_hba(n) container_of(n, struct ctlr_info, dev) +#define to_drv(n) container_of(n, drive_info_struct, dev) + +static struct device_type cciss_host_type = { + .name = "cciss_host", +}; + +static ssize_t dev_show_unique_id(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + drive_info_struct *drv = to_drv(dev); + struct ctlr_info *h = to_hba(drv->dev.parent); + __u8 sn[16]; + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags); + if (h->busy_configuring) + ret = -EBUSY; + else + memcpy(sn, drv->serial_no, sizeof(sn)); + spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + + if (ret) + return ret; + else + return snprintf(buf, 16 * 2 + 2, + "%02X%02X%02X%02X%02X%02X%02X%02X" + "%02X%02X%02X%02X%02X%02X%02X%02X\n", + sn[0], sn[1], sn[2], sn[3], + sn[4], sn[5], sn[6], sn[7], + sn[8], sn[9], sn[10], sn[11], + sn[12], sn[13], sn[14], sn[15]); +} +DEVICE_ATTR(unique_id, S_IRUGO, dev_show_unique_id, NULL); + +static ssize_t dev_show_vendor(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + drive_info_struct *drv = to_drv(dev); + struct ctlr_info *h = to_hba(drv->dev.parent); + char vendor[VENDOR_LEN + 1]; + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags); + if (h->busy_configuring) + ret = -EBUSY; + else + memcpy(vendor, drv->vendor, VENDOR_LEN + 1); + spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + + if (ret) + return ret; + else + return snprintf(buf, sizeof(vendor) + 1, "%s\n", drv->vendor); +} +DEVICE_ATTR(vendor, S_IRUGO, dev_show_vendor, NULL); + +static ssize_t dev_show_model(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + drive_info_struct *drv = to_drv(dev); + struct ctlr_info *h = to_hba(drv->dev.parent); + char model[MODEL_LEN + 1]; + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags); + if (h->busy_configuring) + ret = -EBUSY; + else + memcpy(model, drv->model, MODEL_LEN + 1); + spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + + if (ret) + return ret; + else + return snprintf(buf, sizeof(model) + 1, "%s\n", drv->model); +} +DEVICE_ATTR(model, S_IRUGO, dev_show_model, NULL); + +static ssize_t dev_show_rev(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + drive_info_struct *drv = to_drv(dev); + struct ctlr_info *h = to_hba(drv->dev.parent); + char rev[REV_LEN + 1]; + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags); + if (h->busy_configuring) + ret = -EBUSY; + else + memcpy(rev, drv->rev, REV_LEN + 1); + spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); + + if (ret) + return ret; + else + return snprintf(buf, sizeof(rev) + 1, "%s\n", drv->rev); +} +DEVICE_ATTR(rev, S_IRUGO, dev_show_rev, NULL); + +static struct attribute *cciss_dev_attrs[] = { + &dev_attr_unique_id.attr, + &dev_attr_model.attr, + &dev_attr_vendor.attr, + &dev_attr_rev.attr, + NULL +}; + +static struct attribute_group cciss_dev_attr_group = { + .attrs = cciss_dev_attrs, +}; + +static struct attribute_group *cciss_dev_attr_groups[] = { + &cciss_dev_attr_group, + NULL +}; + +static struct device_type cciss_dev_type = { + .name = "cciss_device", + .groups = cciss_dev_attr_groups, +}; + +static struct bus_type cciss_bus_type = { + .name = "cciss", +}; + + +/* + * Initialize sysfs entry for each controller. This sets up and registers + * the 'cciss#' directory for each individual controller under + * /sys/bus/pci/devices/<dev>/. + */ +static int cciss_create_hba_sysfs_entry(struct ctlr_info *h) +{ + device_initialize(&h->dev); + h->dev.type = &cciss_host_type; + h->dev.bus = &cciss_bus_type; + dev_set_name(&h->dev, "%s", h->devname); + h->dev.parent = &h->pdev->dev; + + return device_add(&h->dev); +} + +/* + * Remove sysfs entries for an hba. + */ +static void cciss_destroy_hba_sysfs_entry(struct ctlr_info *h) +{ + device_del(&h->dev); +} + +/* + * Initialize sysfs for each logical drive. This sets up and registers + * the 'c#d#' directory for each individual logical drive under + * /sys/bus/pci/devices/<dev/ccis#/. We also create a link from + * /sys/block/cciss!c#d# to this entry. + */ +static int cciss_create_ld_sysfs_entry(struct ctlr_info *h, + drive_info_struct *drv, + int drv_index) +{ + device_initialize(&drv->dev); + drv->dev.type = &cciss_dev_type; + drv->dev.bus = &cciss_bus_type; + dev_set_name(&drv->dev, "c%dd%d", h->ctlr, drv_index); + drv->dev.parent = &h->dev; + return device_add(&drv->dev); +} + +/* + * Remove sysfs entries for a logical drive. + */ +static void cciss_destroy_ld_sysfs_entry(drive_info_struct *drv) +{ + device_del(&drv->dev); +} + /* * For operations that cannot sleep, a command block is allocated at init, * and managed by cmd_alloc() and cmd_free() using a simple bitmap to track @@ -1299,7 +1489,6 @@ static void cciss_softirq_done(struct request *rq) { CommandList_struct *cmd = rq->completion_data; ctlr_info_t *h = hba[cmd->ctlr]; - unsigned int nr_bytes; unsigned long flags; u64bit temp64; int i, ddir; @@ -1321,15 +1510,11 @@ static void cciss_softirq_done(struct request *rq) printk("Done with %p\n", rq); #endif /* CCISS_DEBUG */ - /* - * Store the full size and set the residual count for pc requests - */ - nr_bytes = blk_rq_bytes(rq); + /* set the residual count for pc requests */ if (blk_pc_request(rq)) - rq->data_len = cmd->err_info->ResidualCnt; + rq->resid_len = cmd->err_info->ResidualCnt; - if (blk_end_request(rq, (rq->errors == 0) ? 0 : -EIO, nr_bytes)) - BUG(); + blk_end_request_all(rq, (rq->errors == 0) ? 0 : -EIO); spin_lock_irqsave(&h->lock, flags); cmd_free(h, cmd, 1); @@ -1337,6 +1522,56 @@ static void cciss_softirq_done(struct request *rq) spin_unlock_irqrestore(&h->lock, flags); } +static void log_unit_to_scsi3addr(ctlr_info_t *h, unsigned char scsi3addr[], + uint32_t log_unit) +{ + log_unit = h->drv[log_unit].LunID & 0x03fff; + memset(&scsi3addr[4], 0, 4); + memcpy(&scsi3addr[0], &log_unit, 4); + scsi3addr[3] |= 0x40; +} + +/* This function gets the SCSI vendor, model, and revision of a logical drive + * via the inquiry page 0. Model, vendor, and rev are set to empty strings if + * they cannot be read. + */ +static void cciss_get_device_descr(int ctlr, int logvol, int withirq, + char *vendor, char *model, char *rev) +{ + int rc; + InquiryData_struct *inq_buf; + unsigned char scsi3addr[8]; + + *vendor = '\0'; + *model = '\0'; + *rev = '\0'; + + inq_buf = kzalloc(sizeof(InquiryData_struct), GFP_KERNEL); + if (!inq_buf) + return; + + log_unit_to_scsi3addr(hba[ctlr], scsi3addr, logvol); + if (withirq) + rc = sendcmd_withirq(CISS_INQUIRY, ctlr, inq_buf, + sizeof(InquiryData_struct), 0, + scsi3addr, TYPE_CMD); + else + rc = sendcmd(CISS_INQUIRY, ctlr, inq_buf, + sizeof(InquiryData_struct), 0, + scsi3addr, TYPE_CMD); + if (rc == IO_OK) { + memcpy(vendor, &inq_buf->data_byte[8], VENDOR_LEN); + vendor[VENDOR_LEN] = '\0'; + memcpy(model, &inq_buf->data_byte[16], MODEL_LEN); + model[MODEL_LEN] = '\0'; + memcpy(rev, &inq_buf->data_byte[32], REV_LEN); + rev[REV_LEN] = '\0'; + } + + kfree(inq_buf); + return; +} + /* This function gets the serial number of a logical drive via * inquiry page 0x83. Serial no. is 16 bytes. If the serial * number cannot be had, for whatever reason, 16 bytes of 0xff @@ -1348,6 +1583,7 @@ static void cciss_get_serial_no(int ctlr, int logvol, int withirq, #define PAGE_83_INQ_BYTES 64 int rc; unsigned char *buf; + unsigned char scsi3addr[8]; if (buflen > 16) buflen = 16; @@ -1356,12 +1592,13 @@ static void cciss_get_serial_no(int ctlr, int logvol, int withirq, if (!buf) return; memset(serial_no, 0, buflen); + log_unit_to_scsi3addr(hba[ctlr], scsi3addr, logvol); if (withirq) rc = sendcmd_withirq(CISS_INQUIRY, ctlr, buf, - PAGE_83_INQ_BYTES, 1, logvol, 0x83, TYPE_CMD); + PAGE_83_INQ_BYTES, 0x83, scsi3addr, TYPE_CMD); else rc = sendcmd(CISS_INQUIRY, ctlr, buf, - PAGE_83_INQ_BYTES, 1, logvol, 0x83, NULL, TYPE_CMD); + PAGE_83_INQ_BYTES, 0x83, scsi3addr, TYPE_CMD); if (rc == IO_OK) memcpy(serial_no, &buf[8], buflen); kfree(buf); @@ -1377,7 +1614,7 @@ static void cciss_add_disk(ctlr_info_t *h, struct gendisk *disk, disk->first_minor = drv_index << NWD_SHIFT; disk->fops = &cciss_fops; disk->private_data = &h->drv[drv_index]; - disk->driverfs_dev = &h->pdev->dev; + disk->driverfs_dev = &h->drv[drv_index].dev; /* Set up queue information */ blk_queue_bounce_limit(disk->queue, h->pdev->dma_mask); @@ -1394,8 +1631,8 @@ static void cciss_add_disk(ctlr_info_t *h, struct gendisk *disk, disk->queue->queuedata = h; - blk_queue_hardsect_size(disk->queue, - h->drv[drv_index].block_size); + blk_queue_logical_block_size(disk->queue, + h->drv[drv_index].block_size); /* Make sure all queue data is written out before */ /* setting h->drv[drv_index].queue, as setting this */ @@ -1468,6 +1705,8 @@ static void cciss_update_drive_info(int ctlr, int drv_index, int first_time) drvinfo->block_size = block_size; drvinfo->nr_blocks = total_size + 1; + cciss_get_device_descr(ctlr, drv_index, 1, drvinfo->vendor, + drvinfo->model, drvinfo->rev); cciss_get_serial_no(ctlr, drv_index, 1, drvinfo->serial_no, sizeof(drvinfo->serial_no)); @@ -1517,6 +1756,9 @@ static void cciss_update_drive_info(int ctlr, int drv_index, int first_time) h->drv[drv_index].cylinders = drvinfo->cylinders; h->drv[drv_index].raid_level = drvinfo->raid_level; memcpy(h->drv[drv_index].serial_no, drvinfo->serial_no, 16); + memcpy(h->drv[drv_index].vendor, drvinfo->vendor, VENDOR_LEN + 1); + memcpy(h->drv[drv_index].model, drvinfo->model, MODEL_LEN + 1); + memcpy(h->drv[drv_index].rev, drvinfo->rev, REV_LEN + 1); ++h->num_luns; disk = h->gendisk[drv_index]; @@ -1591,6 +1833,8 @@ static int cciss_add_gendisk(ctlr_info_t *h, __u32 lunid, int controller_node) } } h->drv[drv_index].LunID = lunid; + if (cciss_create_ld_sysfs_entry(h, &h->drv[drv_index], drv_index)) + goto err_free_disk; /* Don't need to mark this busy because nobody */ /* else knows about this disk yet to contend */ @@ -1598,6 +1842,11 @@ static int cciss_add_gendisk(ctlr_info_t *h, __u32 lunid, int controller_node) h->drv[drv_index].busy_configuring = 0; wmb(); return drv_index; + +err_free_disk: + put_disk(h->gendisk[drv_index]); + h->gendisk[drv_index] = NULL; + return -1; } /* This is for the special case of a controller which @@ -1668,8 +1917,8 @@ static int rebuild_lun_table(ctlr_info_t *h, int first_time) goto mem_msg; return_code = sendcmd_withirq(CISS_REPORT_LOG, ctlr, ld_buff, - sizeof(ReportLunData_struct), 0, - 0, 0, TYPE_CMD); + sizeof(ReportLunData_struct), + 0, CTLR_LUNID, TYPE_CMD); if (return_code == IO_OK) listlength = be32_to_cpu(*(__be32 *) ld_buff->LUNListLength); @@ -1718,6 +1967,7 @@ static int rebuild_lun_table(ctlr_info_t *h, int first_time) h->drv[i].busy_configuring = 1; spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); return_code = deregister_disk(h, i, 1); + cciss_destroy_ld_sysfs_entry(&h->drv[i]); h->drv[i].busy_configuring = 0; } } @@ -1877,11 +2127,9 @@ static int deregister_disk(ctlr_info_t *h, int drv_index, return 0; } -static int fill_cmd(CommandList_struct *c, __u8 cmd, int ctlr, void *buff, size_t size, unsigned int use_unit_num, /* 0: address the controller, - 1: address logical volume log_unit, - 2: periph device address is scsi3addr */ - unsigned int log_unit, __u8 page_code, - unsigned char *scsi3addr, int cmd_type) +static int fill_cmd(CommandList_struct *c, __u8 cmd, int ctlr, void *buff, + size_t size, __u8 page_code, unsigned char *scsi3addr, + int cmd_type) { ctlr_info_t *h = hba[ctlr]; u64bit buff_dma_handle; @@ -1897,27 +2145,12 @@ static int fill_cmd(CommandList_struct *c, __u8 cmd, int ctlr, void *buff, size_ c->Header.SGTotal = 0; } c->Header.Tag.lower = c->busaddr; + memcpy(c->Header.LUN.LunAddrBytes, scsi3addr, 8); c->Request.Type.Type = cmd_type; if (cmd_type == TYPE_CMD) { switch (cmd) { case CISS_INQUIRY: - /* If the logical unit number is 0 then, this is going - to controller so It's a physical command - mode = 0 target = 0. So we have nothing to write. - otherwise, if use_unit_num == 1, - mode = 1(volume set addressing) target = LUNID - otherwise, if use_unit_num == 2, - mode = 0(periph dev addr) target = scsi3addr */ - if (use_unit_num == 1) { - c->Header.LUN.LogDev.VolId = - h->drv[log_unit].LunID; - c->Header.LUN.LogDev.Mode = 1; - } else if (use_unit_num == 2) { - memcpy(c->Header.LUN.LunAddrBytes, scsi3addr, - 8); - c->Header.LUN.LogDev.Mode = 0; - } /* are we trying to read a vital product page */ if (page_code != 0) { c->Request.CDB[1] = 0x01; @@ -1947,8 +2180,6 @@ static int fill_cmd(CommandList_struct *c, __u8 cmd, int ctlr, void *buff, size_ break; case CCISS_READ_CAPACITY: - c->Header.LUN.LogDev.VolId = h->drv[log_unit].LunID; - c->Header.LUN.LogDev.Mode = 1; c->Request.CDBLen = 10; c->Request.Type.Attribute = ATTR_SIMPLE; c->Request.Type.Direction = XFER_READ; @@ -1956,8 +2187,6 @@ static int fill_cmd(CommandList_struct *c, __u8 cmd, int ctlr, void *buff, size_ c->Request.CDB[0] = cmd; break; case CCISS_READ_CAPACITY_16: - c->Header.LUN.LogDev.VolId = h->drv[log_unit].LunID; - c->Header.LUN.LogDev.Mode = 1; c->Request.CDBLen = 16; c->Request.Type.Attribute = ATTR_SIMPLE; c->Request.Type.Direction = XFER_READ; @@ -1979,6 +2208,12 @@ static int fill_cmd(CommandList_struct *c, __u8 cmd, int ctlr, void *buff, size_ c->Request.CDB[0] = BMIC_WRITE; c->Request.CDB[6] = BMIC_CACHE_FLUSH; break; + case TEST_UNIT_READY: + c->Request.CDBLen = 6; + c->Request.Type.Attribute = ATTR_SIMPLE; + c->Request.Type.Direction = XFER_NONE; + c->Request.Timeout = 0; + break; default: printk(KERN_WARNING "cciss%d: Unknown Command 0x%c\n", ctlr, cmd); @@ -1997,13 +2232,13 @@ static int fill_cmd(CommandList_struct *c, __u8 cmd, int ctlr, void *buff, size_ memcpy(&c->Request.CDB[4], buff, 8); break; case 1: /* RESET message */ - c->Request.CDBLen = 12; + c->Request.CDBLen = 16; c->Request.Type.Attribute = ATTR_SIMPLE; - c->Request.Type.Direction = XFER_WRITE; + c->Request.Type.Direction = XFER_NONE; c->Request.Timeout = 0; memset(&c->Request.CDB[0], 0, sizeof(c->Request.CDB)); c->Request.CDB[0] = cmd; /* reset */ - c->Request.CDB[1] = 0x04; /* reset a LUN */ + c->Request.CDB[1] = 0x03; /* reset a target */ break; case 3: /* No-Op message */ c->Request.CDBLen = 1; @@ -2035,114 +2270,152 @@ static int fill_cmd(CommandList_struct *c, __u8 cmd, int ctlr, void *buff, size_ return status; } -static int sendcmd_withirq(__u8 cmd, - int ctlr, - void *buff, - size_t size, - unsigned int use_unit_num, - unsigned int log_unit, __u8 page_code, int cmd_type) +static int check_target_status(ctlr_info_t *h, CommandList_struct *c) { - ctlr_info_t *h = hba[ctlr]; - CommandList_struct *c; + switch (c->err_info->ScsiStatus) { + case SAM_STAT_GOOD: + return IO_OK; + case SAM_STAT_CHECK_CONDITION: + switch (0xf & c->err_info->SenseInfo[2]) { + case 0: return IO_OK; /* no sense */ + case 1: return IO_OK; /* recovered error */ + default: + printk(KERN_WARNING "cciss%d: cmd 0x%02x " + "check condition, sense key = 0x%02x\n", + h->ctlr, c->Request.CDB[0], + c->err_info->SenseInfo[2]); + } + break; + default: + printk(KERN_WARNING "cciss%d: cmd 0x%02x" + "scsi status = 0x%02x\n", h->ctlr, + c->Request.CDB[0], c->err_info->ScsiStatus); + break; + } + return IO_ERROR; +} + +static int process_sendcmd_error(ctlr_info_t *h, CommandList_struct *c) +{ + int return_status = IO_OK; + + if (c->err_info->CommandStatus == CMD_SUCCESS) + return IO_OK; + + switch (c->err_info->CommandStatus) { + case CMD_TARGET_STATUS: + return_status = check_target_status(h, c); + break; + case CMD_DATA_UNDERRUN: + case CMD_DATA_OVERRUN: + /* expected for inquiry and report lun commands */ + break; + case CMD_INVALID: + printk(KERN_WARNING "cciss: cmd 0x%02x is " + "reported invalid\n", c->Request.CDB[0]); + return_status = IO_ERROR; + break; + case CMD_PROTOCOL_ERR: + printk(KERN_WARNING "cciss: cmd 0x%02x has " + "protocol error \n", c->Request.CDB[0]); + return_status = IO_ERROR; + break; + case CMD_HARDWARE_ERR: + printk(KERN_WARNING "cciss: cmd 0x%02x had " + " hardware error\n", c->Request.CDB[0]); + return_status = IO_ERROR; + break; + case CMD_CONNECTION_LOST: + printk(KERN_WARNING "cciss: cmd 0x%02x had " + "connection lost\n", c->Request.CDB[0]); + return_status = IO_ERROR; + break; + case CMD_ABORTED: + printk(KERN_WARNING "cciss: cmd 0x%02x was " + "aborted\n", c->Request.CDB[0]); + return_status = IO_ERROR; + break; + case CMD_ABORT_FAILED: + printk(KERN_WARNING "cciss: cmd 0x%02x reports " + "abort failed\n", c->Request.CDB[0]); + return_status = IO_ERROR; + break; + case CMD_UNSOLICITED_ABORT: + printk(KERN_WARNING + "cciss%d: unsolicited abort 0x%02x\n", h->ctlr, + c->Request.CDB[0]); + return_status = IO_NEEDS_RETRY; + break; + default: + printk(KERN_WARNING "cciss: cmd 0x%02x returned " + "unknown status %x\n", c->Request.CDB[0], + c->err_info->CommandStatus); + return_status = IO_ERROR; + } + return return_status; +} + +static int sendcmd_withirq_core(ctlr_info_t *h, CommandList_struct *c, + int attempt_retry) +{ + DECLARE_COMPLETION_ONSTACK(wait); u64bit buff_dma_handle; unsigned long flags; - int return_status; - DECLARE_COMPLETION_ONSTACK(wait); + int return_status = IO_OK; - if ((c = cmd_alloc(h, 0)) == NULL) - return -ENOMEM; - return_status = fill_cmd(c, cmd, ctlr, buff, size, use_unit_num, - log_unit, page_code, NULL, cmd_type); - if (return_status != IO_OK) { - cmd_free(h, c, 0); - return return_status; - } - resend_cmd2: +resend_cmd2: c->waiting = &wait; - /* Put the request on the tail of the queue and send it */ - spin_lock_irqsave(CCISS_LOCK(ctlr), flags); + spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags); addQ(&h->reqQ, c); h->Qdepth++; start_io(h); - spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags); + spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); wait_for_completion(&wait); - if (c->err_info->CommandStatus != 0) { /* an error has occurred */ - switch (c->err_info->CommandStatus) { - case CMD_TARGET_STATUS: - printk(KERN_WARNING "cciss: cmd %p has " - " completed with errors\n", c); - if (c->err_info->ScsiStatus) { - printk(KERN_WARNING "cciss: cmd %p " - "has SCSI Status = %x\n", - c, c->err_info->ScsiStatus); - } + if (c->err_info->CommandStatus == 0 || !attempt_retry) + goto command_done; - break; - case CMD_DATA_UNDERRUN: - case CMD_DATA_OVERRUN: - /* expected for inquire and report lun commands */ - break; - case CMD_INVALID: - printk(KERN_WARNING "cciss: Cmd %p is " - "reported invalid\n", c); - return_status = IO_ERROR; - break; - case CMD_PROTOCOL_ERR: - printk(KERN_WARNING "cciss: cmd %p has " - "protocol error \n", c); - return_status = IO_ERROR; - break; - case CMD_HARDWARE_ERR: - printk(KERN_WARNING "cciss: cmd %p had " - " hardware error\n", c); - return_status = IO_ERROR; - break; - case CMD_CONNECTION_LOST: - printk(KERN_WARNING "cciss: cmd %p had " - "connection lost\n", c); - return_status = IO_ERROR; - break; - case CMD_ABORTED: - printk(KERN_WARNING "cciss: cmd %p was " - "aborted\n", c); - return_status = IO_ERROR; - break; - case CMD_ABORT_FAILED: - printk(KERN_WARNING "cciss: cmd %p reports " - "abort failed\n", c); - return_status = IO_ERROR; - break; - case CMD_UNSOLICITED_ABORT: - printk(KERN_WARNING - "cciss%d: unsolicited abort %p\n", ctlr, c); - if (c->retry_count < MAX_CMD_RETRIES) { - printk(KERN_WARNING - "cciss%d: retrying %p\n", ctlr, c); - c->retry_count++; - /* erase the old error information */ - memset(c->err_info, 0, - sizeof(ErrorInfo_struct)); - return_status = IO_OK; - INIT_COMPLETION(wait); - goto resend_cmd2; - } - return_status = IO_ERROR; - break; - default: - printk(KERN_WARNING "cciss: cmd %p returned " - "unknown status %x\n", c, - c->err_info->CommandStatus); - return_status = IO_ERROR; - } + return_status = process_sendcmd_error(h, c); + + if (return_status == IO_NEEDS_RETRY && + c->retry_count < MAX_CMD_RETRIES) { + printk(KERN_WARNING "cciss%d: retrying 0x%02x\n", h->ctlr, + c->Request.CDB[0]); + c->retry_count++; + /* erase the old error information */ + memset(c->err_info, 0, sizeof(ErrorInfo_struct)); + return_status = IO_OK; + INIT_COMPLETION(wait); + goto resend_cmd2; } + +command_done: /* unlock the buffers from DMA */ buff_dma_handle.val32.lower = c->SG[0].Addr.lower; buff_dma_handle.val32.upper = c->SG[0].Addr.upper; pci_unmap_single(h->pdev, (dma_addr_t) buff_dma_handle.val, c->SG[0].Len, PCI_DMA_BIDIRECTIONAL); + return return_status; +} + +static int sendcmd_withirq(__u8 cmd, int ctlr, void *buff, size_t size, + __u8 page_code, unsigned char scsi3addr[], + int cmd_type) +{ + ctlr_info_t *h = hba[ctlr]; + CommandList_struct *c; + int return_status; + + c = cmd_alloc(h, 0); + if (!c) + return -ENOMEM; + return_status = fill_cmd(c, cmd, ctlr, buff, size, page_code, + scsi3addr, cmd_type); + if (return_status == IO_OK) + return_status = sendcmd_withirq_core(h, c, 1); + cmd_free(h, c, 0); return return_status; } @@ -2155,15 +2428,17 @@ static void cciss_geometry_inquiry(int ctlr, int logvol, { int return_code; unsigned long t; + unsigned char scsi3addr[8]; memset(inq_buff, 0, sizeof(InquiryData_struct)); + log_unit_to_scsi3addr(hba[ctlr], scsi3addr, logvol); if (withirq) return_code = sendcmd_withirq(CISS_INQUIRY, ctlr, - inq_buff, sizeof(*inq_buff), 1, - logvol, 0xC1, TYPE_CMD); + inq_buff, sizeof(*inq_buff), + 0xC1, scsi3addr, TYPE_CMD); else return_code = sendcmd(CISS_INQUIRY, ctlr, inq_buff, - sizeof(*inq_buff), 1, logvol, 0xC1, NULL, + sizeof(*inq_buff), 0xC1, scsi3addr, TYPE_CMD); if (return_code == IO_OK) { if (inq_buff->data_byte[8] == 0xFF) { @@ -2204,6 +2479,7 @@ cciss_read_capacity(int ctlr, int logvol, int withirq, sector_t *total_size, { ReadCapdata_struct *buf; int return_code; + unsigned char scsi3addr[8]; buf = kzalloc(sizeof(ReadCapdata_struct), GFP_KERNEL); if (!buf) { @@ -2211,14 +2487,15 @@ cciss_read_capacity(int ctlr, int logvol, int withirq, sector_t *total_size, return; } + log_unit_to_scsi3addr(hba[ctlr], scsi3addr, logvol); if (withirq) return_code = sendcmd_withirq(CCISS_READ_CAPACITY, ctlr, buf, sizeof(ReadCapdata_struct), - 1, logvol, 0, TYPE_CMD); + 0, scsi3addr, TYPE_CMD); else return_code = sendcmd(CCISS_READ_CAPACITY, ctlr, buf, sizeof(ReadCapdata_struct), - 1, logvol, 0, NULL, TYPE_CMD); + 0, scsi3addr, TYPE_CMD); if (return_code == IO_OK) { *total_size = be32_to_cpu(*(__be32 *) buf->total_size); *block_size = be32_to_cpu(*(__be32 *) buf->block_size); @@ -2238,6 +2515,7 @@ cciss_read_capacity_16(int ctlr, int logvol, int withirq, sector_t *total_size, { ReadCapdata_struct_16 *buf; int return_code; + unsigned char scsi3addr[8]; buf = kzalloc(sizeof(ReadCapdata_struct_16), GFP_KERNEL); if (!buf) { @@ -2245,15 +2523,16 @@ cciss_read_capacity_16(int ctlr, int logvol, int withirq, sector_t *total_size, return; } + log_unit_to_scsi3addr(hba[ctlr], scsi3addr, logvol); if (withirq) { return_code = sendcmd_withirq(CCISS_READ_CAPACITY_16, ctlr, buf, sizeof(ReadCapdata_struct_16), - 1, logvol, 0, TYPE_CMD); + 0, scsi3addr, TYPE_CMD); } else { return_code = sendcmd(CCISS_READ_CAPACITY_16, ctlr, buf, sizeof(ReadCapdata_struct_16), - 1, logvol, 0, NULL, TYPE_CMD); + 0, scsi3addr, TYPE_CMD); } if (return_code == IO_OK) { *total_size = be64_to_cpu(*(__be64 *) buf->total_size); @@ -2303,7 +2582,7 @@ static int cciss_revalidate(struct gendisk *disk) cciss_geometry_inquiry(h->ctlr, logvol, 1, total_size, block_size, inq_buff, drv); - blk_queue_hardsect_size(drv->queue, drv->block_size); + blk_queue_logical_block_size(drv->queue, drv->block_size); set_capacity(disk, drv->nr_blocks); kfree(inq_buff); @@ -2333,86 +2612,21 @@ static unsigned long pollcomplete(int ctlr) return 1; } -static int add_sendcmd_reject(__u8 cmd, int ctlr, unsigned long complete) -{ - /* We get in here if sendcmd() is polling for completions - and gets some command back that it wasn't expecting -- - something other than that which it just sent down. - Ordinarily, that shouldn't happen, but it can happen when - the scsi tape stuff gets into error handling mode, and - starts using sendcmd() to try to abort commands and - reset tape drives. In that case, sendcmd may pick up - completions of commands that were sent to logical drives - through the block i/o system, or cciss ioctls completing, etc. - In that case, we need to save those completions for later - processing by the interrupt handler. - */ - -#ifdef CONFIG_CISS_SCSI_TAPE - struct sendcmd_reject_list *srl = &hba[ctlr]->scsi_rejects; - - /* If it's not the scsi tape stuff doing error handling, (abort */ - /* or reset) then we don't expect anything weird. */ - if (cmd != CCISS_RESET_MSG && cmd != CCISS_ABORT_MSG) { -#endif - printk(KERN_WARNING "cciss cciss%d: SendCmd " - "Invalid command list address returned! (%lx)\n", - ctlr, complete); - /* not much we can do. */ -#ifdef CONFIG_CISS_SCSI_TAPE - return 1; - } - - /* We've sent down an abort or reset, but something else - has completed */ - if (srl->ncompletions >= (hba[ctlr]->nr_cmds + 2)) { - /* Uh oh. No room to save it for later... */ - printk(KERN_WARNING "cciss%d: Sendcmd: Invalid command addr, " - "reject list overflow, command lost!\n", ctlr); - return 1; - } - /* Save it for later */ - srl->complete[srl->ncompletions] = complete; - srl->ncompletions++; -#endif - return 0; -} - -/* - * Send a command to the controller, and wait for it to complete. - * Only used at init time. +/* Send command c to controller h and poll for it to complete. + * Turns interrupts off on the board. Used at driver init time + * and during SCSI error recovery. */ -static int sendcmd(__u8 cmd, int ctlr, void *buff, size_t size, unsigned int use_unit_num, /* 0: address the controller, - 1: address logical volume log_unit, - 2: periph device address is scsi3addr */ - unsigned int log_unit, - __u8 page_code, unsigned char *scsi3addr, int cmd_type) +static int sendcmd_core(ctlr_info_t *h, CommandList_struct *c) { - CommandList_struct *c; int i; unsigned long complete; - ctlr_info_t *info_p = hba[ctlr]; + int status = IO_ERROR; u64bit buff_dma_handle; - int status, done = 0; - if ((c = cmd_alloc(info_p, 1)) == NULL) { - printk(KERN_WARNING "cciss: unable to get memory"); - return IO_ERROR; - } - status = fill_cmd(c, cmd, ctlr, buff, size, use_unit_num, - log_unit, page_code, scsi3addr, cmd_type); - if (status != IO_OK) { - cmd_free(info_p, c, 1); - return status; - } - resend_cmd1: - /* - * Disable interrupt - */ -#ifdef CCISS_DEBUG - printk(KERN_DEBUG "cciss: turning intr off\n"); -#endif /* CCISS_DEBUG */ - info_p->access.set_intr_mask(info_p, CCISS_INTR_OFF); +resend_cmd1: + + /* Disable interrupt on the board. */ + h->access.set_intr_mask(h, CCISS_INTR_OFF); /* Make sure there is room in the command FIFO */ /* Actually it should be completely empty at this time */ @@ -2420,21 +2634,15 @@ static int sendcmd(__u8 cmd, int ctlr, void *buff, size_t size, unsigned int use /* tape side of the driver. */ for (i = 200000; i > 0; i--) { /* if fifo isn't full go */ - if (!(info_p->access.fifo_full(info_p))) { - + if (!(h->access.fifo_full(h))) break; - } udelay(10); printk(KERN_WARNING "cciss cciss%d: SendCmd FIFO full," - " waiting!\n", ctlr); + " waiting!\n", h->ctlr); } - /* - * Send the cmd - */ - info_p->access.submit_command(info_p, c); - done = 0; + h->access.submit_command(h, c); /* Send the cmd */ do { - complete = pollcomplete(ctlr); + complete = pollcomplete(h->ctlr); #ifdef CCISS_DEBUG printk(KERN_DEBUG "cciss: command completed\n"); @@ -2443,97 +2651,102 @@ static int sendcmd(__u8 cmd, int ctlr, void *buff, size_t size, unsigned int use if (complete == 1) { printk(KERN_WARNING "cciss cciss%d: SendCmd Timeout out, " - "No command list address returned!\n", ctlr); + "No command list address returned!\n", h->ctlr); status = IO_ERROR; - done = 1; break; } - /* This will need to change for direct lookup completions */ - if ((complete & CISS_ERROR_BIT) - && (complete & ~CISS_ERROR_BIT) == c->busaddr) { - /* if data overrun or underun on Report command - ignore it - */ - if (((c->Request.CDB[0] == CISS_REPORT_LOG) || - (c->Request.CDB[0] == CISS_REPORT_PHYS) || - (c->Request.CDB[0] == CISS_INQUIRY)) && - ((c->err_info->CommandStatus == - CMD_DATA_OVERRUN) || - (c->err_info->CommandStatus == CMD_DATA_UNDERRUN) - )) { - complete = c->busaddr; - } else { - if (c->err_info->CommandStatus == - CMD_UNSOLICITED_ABORT) { - printk(KERN_WARNING "cciss%d: " - "unsolicited abort %p\n", - ctlr, c); - if (c->retry_count < MAX_CMD_RETRIES) { - printk(KERN_WARNING - "cciss%d: retrying %p\n", - ctlr, c); - c->retry_count++; - /* erase the old error */ - /* information */ - memset(c->err_info, 0, - sizeof - (ErrorInfo_struct)); - goto resend_cmd1; - } else { - printk(KERN_WARNING - "cciss%d: retried %p too " - "many times\n", ctlr, c); - status = IO_ERROR; - goto cleanup1; - } - } else if (c->err_info->CommandStatus == - CMD_UNABORTABLE) { - printk(KERN_WARNING - "cciss%d: command could not be aborted.\n", - ctlr); - status = IO_ERROR; - goto cleanup1; - } - printk(KERN_WARNING "ciss ciss%d: sendcmd" - " Error %x \n", ctlr, - c->err_info->CommandStatus); - printk(KERN_WARNING "ciss ciss%d: sendcmd" - " offensive info\n" - " size %x\n num %x value %x\n", - ctlr, - c->err_info->MoreErrInfo.Invalid_Cmd. - offense_size, - c->err_info->MoreErrInfo.Invalid_Cmd. - offense_num, - c->err_info->MoreErrInfo.Invalid_Cmd. - offense_value); - status = IO_ERROR; - goto cleanup1; - } + /* Make sure it's the command we're expecting. */ + if ((complete & ~CISS_ERROR_BIT) != c->busaddr) { + printk(KERN_WARNING "cciss%d: Unexpected command " + "completion.\n", h->ctlr); + continue; + } + + /* It is our command. If no error, we're done. */ + if (!(complete & CISS_ERROR_BIT)) { + status = IO_OK; + break; } - /* This will need changing for direct lookup completions */ - if (complete != c->busaddr) { - if (add_sendcmd_reject(cmd, ctlr, complete) != 0) { - BUG(); /* we are pretty much hosed if we get here. */ + + /* There is an error... */ + + /* if data overrun or underun on Report command ignore it */ + if (((c->Request.CDB[0] == CISS_REPORT_LOG) || + (c->Request.CDB[0] == CISS_REPORT_PHYS) || + (c->Request.CDB[0] == CISS_INQUIRY)) && + ((c->err_info->CommandStatus == CMD_DATA_OVERRUN) || + (c->err_info->CommandStatus == CMD_DATA_UNDERRUN))) { + complete = c->busaddr; + status = IO_OK; + break; + } + + if (c->err_info->CommandStatus == CMD_UNSOLICITED_ABORT) { + printk(KERN_WARNING "cciss%d: unsolicited abort %p\n", + h->ctlr, c); + if (c->retry_count < MAX_CMD_RETRIES) { + printk(KERN_WARNING "cciss%d: retrying %p\n", + h->ctlr, c); + c->retry_count++; + /* erase the old error information */ + memset(c->err_info, 0, sizeof(c->err_info)); + goto resend_cmd1; } - continue; - } else - done = 1; - } while (!done); + printk(KERN_WARNING "cciss%d: retried %p too many " + "times\n", h->ctlr, c); + status = IO_ERROR; + break; + } + + if (c->err_info->CommandStatus == CMD_UNABORTABLE) { + printk(KERN_WARNING "cciss%d: command could not be " + "aborted.\n", h->ctlr); + status = IO_ERROR; + break; + } + + if (c->err_info->CommandStatus == CMD_TARGET_STATUS) { + status = check_target_status(h, c); + break; + } + + printk(KERN_WARNING "cciss%d: sendcmd error\n", h->ctlr); + printk(KERN_WARNING "cmd = 0x%02x, CommandStatus = 0x%02x\n", + c->Request.CDB[0], c->err_info->CommandStatus); + status = IO_ERROR; + break; + + } while (1); - cleanup1: /* unlock the data buffer from DMA */ buff_dma_handle.val32.lower = c->SG[0].Addr.lower; buff_dma_handle.val32.upper = c->SG[0].Addr.upper; - pci_unmap_single(info_p->pdev, (dma_addr_t) buff_dma_handle.val, + pci_unmap_single(h->pdev, (dma_addr_t) buff_dma_handle.val, c->SG[0].Len, PCI_DMA_BIDIRECTIONAL); -#ifdef CONFIG_CISS_SCSI_TAPE - /* if we saved some commands for later, process them now. */ - if (info_p->scsi_rejects.ncompletions > 0) - do_cciss_intr(0, info_p); -#endif - cmd_free(info_p, c, 1); + return status; +} + +/* + * Send a command to the controller, and wait for it to complete. + * Used at init time, and during SCSI error recovery. + */ +static int sendcmd(__u8 cmd, int ctlr, void *buff, size_t size, + __u8 page_code, unsigned char *scsi3addr, int cmd_type) +{ + CommandList_struct *c; + int status; + + c = cmd_alloc(hba[ctlr], 1); + if (!c) { + printk(KERN_WARNING "cciss: unable to get memory"); + return IO_ERROR; + } + status = fill_cmd(c, cmd, ctlr, buff, size, page_code, + scsi3addr, cmd_type); + if (status == IO_OK) + status = sendcmd_core(hba[ctlr], c); + cmd_free(hba[ctlr], c, 1); return status; } @@ -2691,7 +2904,7 @@ static inline void complete_command(ctlr_info_t *h, CommandList_struct *cmd, printk(KERN_WARNING "cciss: cmd %p has" " completed with data underrun " "reported\n", cmd); - cmd->rq->data_len = cmd->err_info->ResidualCnt; + cmd->rq->resid_len = cmd->err_info->ResidualCnt; } break; case CMD_DATA_OVERRUN: @@ -2806,7 +3019,7 @@ static void do_cciss_request(struct request_queue *q) goto startio; queue: - creq = elv_next_request(q); + creq = blk_peek_request(q); if (!creq) goto startio; @@ -2815,7 +3028,7 @@ static void do_cciss_request(struct request_queue *q) if ((c = cmd_alloc(h, 1)) == NULL) goto full; - blkdev_dequeue_request(creq); + blk_start_request(creq); spin_unlock_irq(q->queue_lock); @@ -2840,10 +3053,10 @@ static void do_cciss_request(struct request_queue *q) c->Request.Timeout = 0; // Don't time out c->Request.CDB[0] = (rq_data_dir(creq) == READ) ? h->cciss_read : h->cciss_write; - start_blk = creq->sector; + start_blk = blk_rq_pos(creq); #ifdef CCISS_DEBUG - printk(KERN_DEBUG "ciss: sector =%d nr_sectors=%d\n", (int)creq->sector, - (int)creq->nr_sectors); + printk(KERN_DEBUG "ciss: sector =%d nr_sectors=%d\n", + (int)blk_rq_pos(creq), (int)blk_rq_sectors(creq)); #endif /* CCISS_DEBUG */ sg_init_table(tmp_sg, MAXSGENTRIES); @@ -2869,8 +3082,8 @@ static void do_cciss_request(struct request_queue *q) h->maxSG = seg; #ifdef CCISS_DEBUG - printk(KERN_DEBUG "cciss: Submitting %lu sectors in %d segments\n", - creq->nr_sectors, seg); + printk(KERN_DEBUG "cciss: Submitting %u sectors in %d segments\n", + blk_rq_sectors(creq), seg); #endif /* CCISS_DEBUG */ c->Header.SGList = c->Header.SGTotal = seg; @@ -2882,8 +3095,8 @@ static void do_cciss_request(struct request_queue *q) c->Request.CDB[4] = (start_blk >> 8) & 0xff; c->Request.CDB[5] = start_blk & 0xff; c->Request.CDB[6] = 0; // (sect >> 24) & 0xff; MSB - c->Request.CDB[7] = (creq->nr_sectors >> 8) & 0xff; - c->Request.CDB[8] = creq->nr_sectors & 0xff; + c->Request.CDB[7] = (blk_rq_sectors(creq) >> 8) & 0xff; + c->Request.CDB[8] = blk_rq_sectors(creq) & 0xff; c->Request.CDB[9] = c->Request.CDB[11] = c->Request.CDB[12] = 0; } else { u32 upper32 = upper_32_bits(start_blk); @@ -2898,10 +3111,10 @@ static void do_cciss_request(struct request_queue *q) c->Request.CDB[7]= (start_blk >> 16) & 0xff; c->Request.CDB[8]= (start_blk >> 8) & 0xff; c->Request.CDB[9]= start_blk & 0xff; - c->Request.CDB[10]= (creq->nr_sectors >> 24) & 0xff; - c->Request.CDB[11]= (creq->nr_sectors >> 16) & 0xff; - c->Request.CDB[12]= (creq->nr_sectors >> 8) & 0xff; - c->Request.CDB[13]= creq->nr_sectors & 0xff; + c->Request.CDB[10]= (blk_rq_sectors(creq) >> 24) & 0xff; + c->Request.CDB[11]= (blk_rq_sectors(creq) >> 16) & 0xff; + c->Request.CDB[12]= (blk_rq_sectors(creq) >> 8) & 0xff; + c->Request.CDB[13]= blk_rq_sectors(creq) & 0xff; c->Request.CDB[14] = c->Request.CDB[15] = 0; } } else if (blk_pc_request(creq)) { @@ -2931,44 +3144,18 @@ startio: static inline unsigned long get_next_completion(ctlr_info_t *h) { -#ifdef CONFIG_CISS_SCSI_TAPE - /* Any rejects from sendcmd() lying around? Process them first */ - if (h->scsi_rejects.ncompletions == 0) - return h->access.command_completed(h); - else { - struct sendcmd_reject_list *srl; - int n; - srl = &h->scsi_rejects; - n = --srl->ncompletions; - /* printk("cciss%d: processing saved reject\n", h->ctlr); */ - printk("p"); - return srl->complete[n]; - } -#else return h->access.command_completed(h); -#endif } static inline int interrupt_pending(ctlr_info_t *h) { -#ifdef CONFIG_CISS_SCSI_TAPE - return (h->access.intr_pending(h) - || (h->scsi_rejects.ncompletions > 0)); -#else return h->access.intr_pending(h); -#endif } static inline long interrupt_not_for_us(ctlr_info_t *h) { -#ifdef CONFIG_CISS_SCSI_TAPE - return (((h->access.intr_pending(h) == 0) || - (h->interrupts_enabled == 0)) - && (h->scsi_rejects.ncompletions == 0)); -#else return (((h->access.intr_pending(h) == 0) || (h->interrupts_enabled == 0))); -#endif } static irqreturn_t do_cciss_intr(int irq, void *dev_id) @@ -3723,12 +3910,15 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, INIT_HLIST_HEAD(&hba[i]->reqQ); if (cciss_pci_init(hba[i], pdev) != 0) - goto clean1; + goto clean0; sprintf(hba[i]->devname, "cciss%d", i); hba[i]->ctlr = i; hba[i]->pdev = pdev; + if (cciss_create_hba_sysfs_entry(hba[i])) + goto clean0; + /* configure PCI DMA stuff */ if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) dac = 1; @@ -3787,15 +3977,6 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, printk(KERN_ERR "cciss: out of memory"); goto clean4; } -#ifdef CONFIG_CISS_SCSI_TAPE - hba[i]->scsi_rejects.complete = - kmalloc(sizeof(hba[i]->scsi_rejects.complete[0]) * - (hba[i]->nr_cmds + 5), GFP_KERNEL); - if (hba[i]->scsi_rejects.complete == NULL) { - printk(KERN_ERR "cciss: out of memory"); - goto clean4; - } -#endif spin_lock_init(&hba[i]->lock); /* Initialize the pdev driver private data. @@ -3828,7 +4009,7 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, } return_code = sendcmd_withirq(CISS_INQUIRY, i, inq_buff, - sizeof(InquiryData_struct), 0, 0 , 0, TYPE_CMD); + sizeof(InquiryData_struct), 0, CTLR_LUNID, TYPE_CMD); if (return_code == IO_OK) { hba[i]->firm_ver[0] = inq_buff->data_byte[32]; hba[i]->firm_ver[1] = inq_buff->data_byte[33]; @@ -3855,9 +4036,6 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, clean4: kfree(inq_buff); -#ifdef CONFIG_CISS_SCSI_TAPE - kfree(hba[i]->scsi_rejects.complete); -#endif kfree(hba[i]->cmd_pool_bits); if (hba[i]->cmd_pool) pci_free_consistent(hba[i]->pdev, @@ -3872,6 +4050,8 @@ clean4: clean2: unregister_blkdev(hba[i]->major, hba[i]->devname); clean1: + cciss_destroy_hba_sysfs_entry(hba[i]); +clean0: hba[i]->busy_initializing = 0; /* cleanup any queues that may have been initialized */ for (j=0; j <= hba[i]->highest_lun; j++){ @@ -3907,8 +4087,8 @@ static void cciss_shutdown(struct pci_dev *pdev) /* sendcmd will turn off interrupt, and send the flush... * To write all data in the battery backed cache to disks */ memset(flush_buf, 0, 4); - return_code = sendcmd(CCISS_CACHE_FLUSH, i, flush_buf, 4, 0, 0, 0, NULL, - TYPE_CMD); + return_code = sendcmd(CCISS_CACHE_FLUSH, i, flush_buf, 4, 0, + CTLR_LUNID, TYPE_CMD); if (return_code == IO_OK) { printk(KERN_INFO "Completed flushing cache on controller %d\n", i); } else { @@ -3973,15 +4153,13 @@ static void __devexit cciss_remove_one(struct pci_dev *pdev) pci_free_consistent(hba[i]->pdev, hba[i]->nr_cmds * sizeof(ErrorInfo_struct), hba[i]->errinfo_pool, hba[i]->errinfo_pool_dhandle); kfree(hba[i]->cmd_pool_bits); -#ifdef CONFIG_CISS_SCSI_TAPE - kfree(hba[i]->scsi_rejects.complete); -#endif /* * Deliberately omit pci_disable_device(): it does something nasty to * Smart Array controllers that pci_enable_device does not undo */ pci_release_regions(pdev); pci_set_drvdata(pdev, NULL); + cciss_destroy_hba_sysfs_entry(hba[i]); free_hba(i); } @@ -3999,6 +4177,8 @@ static struct pci_driver cciss_pci_driver = { */ static int __init cciss_init(void) { + int err; + /* * The hardware requires that commands are aligned on a 64-bit * boundary. Given that we use pci_alloc_consistent() to allocate an @@ -4008,8 +4188,20 @@ static int __init cciss_init(void) printk(KERN_INFO DRIVER_NAME "\n"); + err = bus_register(&cciss_bus_type); + if (err) + return err; + /* Register for our PCI devices */ - return pci_register_driver(&cciss_pci_driver); + err = pci_register_driver(&cciss_pci_driver); + if (err) + goto err_bus_register; + + return 0; + +err_bus_register: + bus_unregister(&cciss_bus_type); + return err; } static void __exit cciss_cleanup(void) @@ -4026,6 +4218,7 @@ static void __exit cciss_cleanup(void) } } remove_proc_entry("driver/cciss", NULL); + bus_unregister(&cciss_bus_type); } static void fail_all_cmds(unsigned long ctlr) diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h index 703e08038fb..06a5db25b29 100644 --- a/drivers/block/cciss.h +++ b/drivers/block/cciss.h @@ -11,6 +11,11 @@ #define IO_OK 0 #define IO_ERROR 1 +#define IO_NEEDS_RETRY 3 + +#define VENDOR_LEN 8 +#define MODEL_LEN 16 +#define REV_LEN 4 struct ctlr_info; typedef struct ctlr_info ctlr_info_t; @@ -34,23 +39,20 @@ typedef struct _drive_info_struct int cylinders; int raid_level; /* set to -1 to indicate that * the drive is not in use/configured - */ - int busy_configuring; /*This is set when the drive is being removed - *to prevent it from being opened or it's queue - *from being started. - */ - __u8 serial_no[16]; /* from inquiry page 0x83, */ - /* not necc. null terminated. */ + */ + int busy_configuring; /* This is set when a drive is being removed + * to prevent it from being opened or it's + * queue from being started. + */ + struct device dev; + __u8 serial_no[16]; /* from inquiry page 0x83, + * not necc. null terminated. + */ + char vendor[VENDOR_LEN + 1]; /* SCSI vendor string */ + char model[MODEL_LEN + 1]; /* SCSI model string */ + char rev[REV_LEN + 1]; /* SCSI revision string */ } drive_info_struct; -#ifdef CONFIG_CISS_SCSI_TAPE - -struct sendcmd_reject_list { - int ncompletions; - unsigned long *complete; /* array of NR_CMDS tags */ -}; - -#endif struct ctlr_info { int ctlr; @@ -118,11 +120,11 @@ struct ctlr_info void *scsi_ctlr; /* ptr to structure containing scsi related stuff */ /* list of block side commands the scsi error handling sucked up */ /* and saved for later processing */ - struct sendcmd_reject_list scsi_rejects; #endif unsigned char alive; struct completion *rescan_wait; struct task_struct *cciss_scan_thread; + struct device dev; }; /* Defining the diffent access_menthods */ diff --git a/drivers/block/cciss_cmd.h b/drivers/block/cciss_cmd.h index 40b1b92dae7..cd665b00c7c 100644 --- a/drivers/block/cciss_cmd.h +++ b/drivers/block/cciss_cmd.h @@ -217,6 +217,8 @@ typedef union _LUNAddr_struct { LogDevAddr_struct LogDev; } LUNAddr_struct; +#define CTLR_LUNID "\0\0\0\0\0\0\0\0" + typedef struct _CommandListHeader_struct { BYTE ReplyQueue; BYTE SGList; diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c index a3fd87b4144..3315268b4ec 100644 --- a/drivers/block/cciss_scsi.c +++ b/drivers/block/cciss_scsi.c @@ -44,20 +44,13 @@ #define CCISS_ABORT_MSG 0x00 #define CCISS_RESET_MSG 0x01 -/* some prototypes... */ -static int sendcmd( - __u8 cmd, - int ctlr, - void *buff, - size_t size, - unsigned int use_unit_num, /* 0: address the controller, - 1: address logical volume log_unit, - 2: address is in scsi3addr */ - unsigned int log_unit, - __u8 page_code, - unsigned char *scsi3addr, +static int fill_cmd(CommandList_struct *c, __u8 cmd, int ctlr, void *buff, + size_t size, + __u8 page_code, unsigned char *scsi3addr, int cmd_type); +static CommandList_struct *cmd_alloc(ctlr_info_t *h, int get_from_pool); +static void cmd_free(ctlr_info_t *h, CommandList_struct *c, int got_from_pool); static int cciss_scsi_proc_info( struct Scsi_Host *sh, @@ -1575,6 +1568,75 @@ cciss_seq_tape_report(struct seq_file *seq, int ctlr) CPQ_TAPE_UNLOCK(ctlr, flags); } +static int wait_for_device_to_become_ready(ctlr_info_t *h, + unsigned char lunaddr[]) +{ + int rc; + int count = 0; + int waittime = HZ; + CommandList_struct *c; + + c = cmd_alloc(h, 1); + if (!c) { + printk(KERN_WARNING "cciss%d: out of memory in " + "wait_for_device_to_become_ready.\n", h->ctlr); + return IO_ERROR; + } + + /* Send test unit ready until device ready, or give up. */ + while (count < 20) { + + /* Wait for a bit. do this first, because if we send + * the TUR right away, the reset will just abort it. + */ + schedule_timeout_uninterruptible(waittime); + count++; + + /* Increase wait time with each try, up to a point. */ + if (waittime < (HZ * 30)) + waittime = waittime * 2; + + /* Send the Test Unit Ready */ + rc = fill_cmd(c, TEST_UNIT_READY, h->ctlr, NULL, 0, 0, + lunaddr, TYPE_CMD); + if (rc == 0) + rc = sendcmd_withirq_core(h, c, 0); + + (void) process_sendcmd_error(h, c); + + if (rc != 0) + goto retry_tur; + + if (c->err_info->CommandStatus == CMD_SUCCESS) + break; + + if (c->err_info->CommandStatus == CMD_TARGET_STATUS && + c->err_info->ScsiStatus == SAM_STAT_CHECK_CONDITION) { + if (c->err_info->SenseInfo[2] == NO_SENSE) + break; + if (c->err_info->SenseInfo[2] == UNIT_ATTENTION) { + unsigned char asc; + asc = c->err_info->SenseInfo[12]; + check_for_unit_attention(h, c); + if (asc == POWER_OR_RESET) + break; + } + } +retry_tur: + printk(KERN_WARNING "cciss%d: Waiting %d secs " + "for device to become ready.\n", + h->ctlr, waittime / HZ); + rc = 1; /* device not ready. */ + } + + if (rc) + printk("cciss%d: giving up on device.\n", h->ctlr); + else + printk(KERN_WARNING "cciss%d: device is ready.\n", h->ctlr); + + cmd_free(h, c, 1); + return rc; +} /* Need at least one of these error handlers to keep ../scsi/hosts.c from * complaining. Doing a host- or bus-reset can't do anything good here. @@ -1591,6 +1653,7 @@ static int cciss_eh_device_reset_handler(struct scsi_cmnd *scsicmd) { int rc; CommandList_struct *cmd_in_trouble; + unsigned char lunaddr[8]; ctlr_info_t **c; int ctlr; @@ -1600,19 +1663,15 @@ static int cciss_eh_device_reset_handler(struct scsi_cmnd *scsicmd) return FAILED; ctlr = (*c)->ctlr; printk(KERN_WARNING "cciss%d: resetting tape drive or medium changer.\n", ctlr); - /* find the command that's giving us trouble */ cmd_in_trouble = (CommandList_struct *) scsicmd->host_scribble; - if (cmd_in_trouble == NULL) { /* paranoia */ + if (cmd_in_trouble == NULL) /* paranoia */ return FAILED; - } + memcpy(lunaddr, &cmd_in_trouble->Header.LUN.LunAddrBytes[0], 8); /* send a reset to the SCSI LUN which the command was sent to */ - rc = sendcmd(CCISS_RESET_MSG, ctlr, NULL, 0, 2, 0, 0, - (unsigned char *) &cmd_in_trouble->Header.LUN.LunAddrBytes[0], + rc = sendcmd_withirq(CCISS_RESET_MSG, ctlr, NULL, 0, 0, lunaddr, TYPE_MSG); - /* sendcmd turned off interrupts on the board, turn 'em back on. */ - (*c)->access.set_intr_mask(*c, CCISS_INTR_ON); - if (rc == 0) + if (rc == 0 && wait_for_device_to_become_ready(*c, lunaddr) == 0) return SUCCESS; printk(KERN_WARNING "cciss%d: resetting device failed.\n", ctlr); return FAILED; @@ -1622,6 +1681,7 @@ static int cciss_eh_abort_handler(struct scsi_cmnd *scsicmd) { int rc; CommandList_struct *cmd_to_abort; + unsigned char lunaddr[8]; ctlr_info_t **c; int ctlr; @@ -1636,12 +1696,9 @@ static int cciss_eh_abort_handler(struct scsi_cmnd *scsicmd) cmd_to_abort = (CommandList_struct *) scsicmd->host_scribble; if (cmd_to_abort == NULL) /* paranoia */ return FAILED; - rc = sendcmd(CCISS_ABORT_MSG, ctlr, &cmd_to_abort->Header.Tag, - 0, 2, 0, 0, - (unsigned char *) &cmd_to_abort->Header.LUN.LunAddrBytes[0], - TYPE_MSG); - /* sendcmd turned off interrupts on the board, turn 'em back on. */ - (*c)->access.set_intr_mask(*c, CCISS_INTR_ON); + memcpy(lunaddr, &cmd_to_abort->Header.LUN.LunAddrBytes[0], 8); + rc = sendcmd_withirq(CCISS_ABORT_MSG, ctlr, &cmd_to_abort->Header.Tag, + 0, 0, lunaddr, TYPE_MSG); if (rc == 0) return SUCCESS; return FAILED; diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c index ca268ca1115..44fa2018f6b 100644 --- a/drivers/block/cpqarray.c +++ b/drivers/block/cpqarray.c @@ -474,7 +474,7 @@ static int __init cpqarray_register_ctlr( int i, struct pci_dev *pdev) disk->fops = &ida_fops; if (j && !drv->nr_blks) continue; - blk_queue_hardsect_size(hba[i]->queue, drv->blk_size); + blk_queue_logical_block_size(hba[i]->queue, drv->blk_size); set_capacity(disk, drv->nr_blks); disk->queue = hba[i]->queue; disk->private_data = drv; @@ -903,7 +903,7 @@ static void do_ida_request(struct request_queue *q) goto startio; queue_next: - creq = elv_next_request(q); + creq = blk_peek_request(q); if (!creq) goto startio; @@ -912,17 +912,18 @@ queue_next: if ((c = cmd_alloc(h,1)) == NULL) goto startio; - blkdev_dequeue_request(creq); + blk_start_request(creq); c->ctlr = h->ctlr; c->hdr.unit = (drv_info_t *)(creq->rq_disk->private_data) - h->drv; c->hdr.size = sizeof(rblk_t) >> 2; c->size += sizeof(rblk_t); - c->req.hdr.blk = creq->sector; + c->req.hdr.blk = blk_rq_pos(creq); c->rq = creq; DBGPX( - printk("sector=%d, nr_sectors=%d\n", creq->sector, creq->nr_sectors); + printk("sector=%d, nr_sectors=%u\n", + blk_rq_pos(creq), blk_rq_sectors(creq)); ); sg_init_table(tmp_sg, SG_MAX); seg = blk_rq_map_sg(q, creq, tmp_sg); @@ -940,9 +941,9 @@ DBGPX( tmp_sg[i].offset, tmp_sg[i].length, dir); } -DBGPX( printk("Submitting %d sectors in %d segments\n", creq->nr_sectors, seg); ); +DBGPX( printk("Submitting %u sectors in %d segments\n", blk_rq_sectors(creq), seg); ); c->req.hdr.sg_cnt = seg; - c->req.hdr.blk_cnt = creq->nr_sectors; + c->req.hdr.blk_cnt = blk_rq_sectors(creq); c->req.hdr.cmd = (rq_data_dir(creq) == READ) ? IDA_READ : IDA_WRITE; c->type = CMD_RWREQ; @@ -1024,8 +1025,7 @@ static inline void complete_command(cmdlist_t *cmd, int timeout) cmd->req.sg[i].size, ddir); DBGPX(printk("Done with %p\n", rq);); - if (__blk_end_request(rq, error, blk_rq_bytes(rq))) - BUG(); + __blk_end_request_all(rq, error); } /* @@ -1546,7 +1546,7 @@ static int revalidate_allvol(ctlr_info_t *host) drv_info_t *drv = &host->drv[i]; if (i && !drv->nr_blks) continue; - blk_queue_hardsect_size(host->queue, drv->blk_size); + blk_queue_logical_block_size(host->queue, drv->blk_size); set_capacity(disk, drv->nr_blks); disk->queue = host->queue; disk->private_data = drv; diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 1300df6f164..862b40c9018 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -931,7 +931,7 @@ static inline void unlock_fdc(void) del_timer(&fd_timeout); cont = NULL; clear_bit(0, &fdc_busy); - if (elv_next_request(floppy_queue)) + if (current_req || blk_peek_request(floppy_queue)) do_fd_request(floppy_queue); spin_unlock_irqrestore(&floppy_lock, flags); wake_up(&fdc_wait); @@ -2303,7 +2303,7 @@ static void floppy_end_request(struct request *req, int error) /* current_count_sectors can be zero if transfer failed */ if (error) - nr_sectors = req->current_nr_sectors; + nr_sectors = blk_rq_cur_sectors(req); if (__blk_end_request(req, error, nr_sectors << 9)) return; @@ -2332,7 +2332,7 @@ static void request_done(int uptodate) if (uptodate) { /* maintain values for invalidation on geometry * change */ - block = current_count_sectors + req->sector; + block = current_count_sectors + blk_rq_pos(req); INFBOUND(DRS->maxblock, block); if (block > _floppy->sect) DRS->maxtrack = 1; @@ -2346,10 +2346,10 @@ static void request_done(int uptodate) /* record write error information */ DRWE->write_errors++; if (DRWE->write_errors == 1) { - DRWE->first_error_sector = req->sector; + DRWE->first_error_sector = blk_rq_pos(req); DRWE->first_error_generation = DRS->generation; } - DRWE->last_error_sector = req->sector; + DRWE->last_error_sector = blk_rq_pos(req); DRWE->last_error_generation = DRS->generation; } spin_lock_irqsave(q->queue_lock, flags); @@ -2503,24 +2503,23 @@ static void copy_buffer(int ssize, int max_sector, int max_sector_2) max_sector = transfer_size(ssize, min(max_sector, max_sector_2), - current_req->nr_sectors); + blk_rq_sectors(current_req)); if (current_count_sectors <= 0 && CT(COMMAND) == FD_WRITE && - buffer_max > fsector_t + current_req->nr_sectors) + buffer_max > fsector_t + blk_rq_sectors(current_req)) current_count_sectors = min_t(int, buffer_max - fsector_t, - current_req->nr_sectors); + blk_rq_sectors(current_req)); remaining = current_count_sectors << 9; #ifdef FLOPPY_SANITY_CHECK - if ((remaining >> 9) > current_req->nr_sectors && - CT(COMMAND) == FD_WRITE) { + if (remaining > blk_rq_bytes(current_req) && CT(COMMAND) == FD_WRITE) { DPRINT("in copy buffer\n"); printk("current_count_sectors=%ld\n", current_count_sectors); printk("remaining=%d\n", remaining >> 9); - printk("current_req->nr_sectors=%ld\n", - current_req->nr_sectors); + printk("current_req->nr_sectors=%u\n", + blk_rq_sectors(current_req)); printk("current_req->current_nr_sectors=%u\n", - current_req->current_nr_sectors); + blk_rq_cur_sectors(current_req)); printk("max_sector=%d\n", max_sector); printk("ssize=%d\n", ssize); } @@ -2530,7 +2529,7 @@ static void copy_buffer(int ssize, int max_sector, int max_sector_2) dma_buffer = floppy_track_buffer + ((fsector_t - buffer_min) << 9); - size = current_req->current_nr_sectors << 9; + size = blk_rq_cur_bytes(current_req); rq_for_each_segment(bv, current_req, iter) { if (!remaining) @@ -2648,10 +2647,10 @@ static int make_raw_rw_request(void) max_sector = _floppy->sect * _floppy->head; - TRACK = (int)current_req->sector / max_sector; - fsector_t = (int)current_req->sector % max_sector; + TRACK = (int)blk_rq_pos(current_req) / max_sector; + fsector_t = (int)blk_rq_pos(current_req) % max_sector; if (_floppy->track && TRACK >= _floppy->track) { - if (current_req->current_nr_sectors & 1) { + if (blk_rq_cur_sectors(current_req) & 1) { current_count_sectors = 1; return 1; } else @@ -2669,7 +2668,7 @@ static int make_raw_rw_request(void) if (fsector_t >= max_sector) { current_count_sectors = min_t(int, _floppy->sect - fsector_t, - current_req->nr_sectors); + blk_rq_sectors(current_req)); return 1; } SIZECODE = 2; @@ -2720,7 +2719,7 @@ static int make_raw_rw_request(void) in_sector_offset = (fsector_t % _floppy->sect) % ssize; aligned_sector_t = fsector_t - in_sector_offset; - max_size = current_req->nr_sectors; + max_size = blk_rq_sectors(current_req); if ((raw_cmd->track == buffer_track) && (current_drive == buffer_drive) && (fsector_t >= buffer_min) && (fsector_t < buffer_max)) { @@ -2729,10 +2728,10 @@ static int make_raw_rw_request(void) copy_buffer(1, max_sector, buffer_max); return 1; } - } else if (in_sector_offset || current_req->nr_sectors < ssize) { + } else if (in_sector_offset || blk_rq_sectors(current_req) < ssize) { if (CT(COMMAND) == FD_WRITE) { - if (fsector_t + current_req->nr_sectors > ssize && - fsector_t + current_req->nr_sectors < ssize + ssize) + if (fsector_t + blk_rq_sectors(current_req) > ssize && + fsector_t + blk_rq_sectors(current_req) < ssize + ssize) max_size = ssize + ssize; else max_size = ssize; @@ -2776,7 +2775,7 @@ static int make_raw_rw_request(void) (indirect * 2 > direct * 3 && *errors < DP->max_errors.read_track && ((!probing || (DP->read_track & (1 << DRS->probed_format)))))) { - max_size = current_req->nr_sectors; + max_size = blk_rq_sectors(current_req); } else { raw_cmd->kernel_data = current_req->buffer; raw_cmd->length = current_count_sectors << 9; @@ -2801,7 +2800,7 @@ static int make_raw_rw_request(void) fsector_t > buffer_max || fsector_t < buffer_min || ((CT(COMMAND) == FD_READ || - (!in_sector_offset && current_req->nr_sectors >= ssize)) && + (!in_sector_offset && blk_rq_sectors(current_req) >= ssize)) && max_sector > 2 * max_buffer_sectors + buffer_min && max_size + fsector_t > 2 * max_buffer_sectors + buffer_min) /* not enough space */ @@ -2879,8 +2878,8 @@ static int make_raw_rw_request(void) printk("write\n"); return 0; } - } else if (raw_cmd->length > current_req->nr_sectors << 9 || - current_count_sectors > current_req->nr_sectors) { + } else if (raw_cmd->length > blk_rq_bytes(current_req) || + current_count_sectors > blk_rq_sectors(current_req)) { DPRINT("buffer overrun in direct transfer\n"); return 0; } else if (raw_cmd->length < current_count_sectors << 9) { @@ -2913,7 +2912,7 @@ static void redo_fd_request(void) struct request *req; spin_lock_irq(floppy_queue->queue_lock); - req = elv_next_request(floppy_queue); + req = blk_fetch_request(floppy_queue); spin_unlock_irq(floppy_queue->queue_lock); if (!req) { do_floppy = NULL; @@ -2990,8 +2989,9 @@ static void do_fd_request(struct request_queue * q) if (usage_count == 0) { printk("warning: usage count=0, current_req=%p exiting\n", current_req); - printk("sect=%ld type=%x flags=%x\n", (long)current_req->sector, - current_req->cmd_type, current_req->cmd_flags); + printk("sect=%ld type=%x flags=%x\n", + (long)blk_rq_pos(current_req), current_req->cmd_type, + current_req->cmd_flags); return; } if (test_bit(0, &fdc_busy)) { @@ -4148,6 +4148,24 @@ static void floppy_device_release(struct device *dev) { } +static int floppy_resume(struct platform_device *dev) +{ + int fdc; + + for (fdc = 0; fdc < N_FDC; fdc++) + if (FDCS->address != -1) + user_reset_fdc(-1, FD_RESET_ALWAYS, 0); + + return 0; +} + +static struct platform_driver floppy_driver = { + .resume = floppy_resume, + .driver = { + .name = "floppy", + }, +}; + static struct platform_device floppy_device[N_DRIVE]; static struct kobject *floppy_find(dev_t dev, int *part, void *data) @@ -4196,10 +4214,14 @@ static int __init floppy_init(void) if (err) goto out_put_disk; + err = platform_driver_register(&floppy_driver); + if (err) + goto out_unreg_blkdev; + floppy_queue = blk_init_queue(do_fd_request, &floppy_lock); if (!floppy_queue) { err = -ENOMEM; - goto out_unreg_blkdev; + goto out_unreg_driver; } blk_queue_max_sectors(floppy_queue, 64); @@ -4346,6 +4368,8 @@ out_flush_work: out_unreg_region: blk_unregister_region(MKDEV(FLOPPY_MAJOR, 0), 256); blk_cleanup_queue(floppy_queue); +out_unreg_driver: + platform_driver_unregister(&floppy_driver); out_unreg_blkdev: unregister_blkdev(FLOPPY_MAJOR, "fd"); out_put_disk: @@ -4566,6 +4590,7 @@ static void __exit floppy_module_exit(void) blk_unregister_region(MKDEV(FLOPPY_MAJOR, 0), 256); unregister_blkdev(FLOPPY_MAJOR, "fd"); + platform_driver_unregister(&floppy_driver); for (drive = 0; drive < N_DRIVE; drive++) { del_timer_sync(&motor_off_timer[drive]); diff --git a/drivers/block/hd.c b/drivers/block/hd.c index baaa9e486e5..f65b3f369eb 100644 --- a/drivers/block/hd.c +++ b/drivers/block/hd.c @@ -98,10 +98,9 @@ static DEFINE_SPINLOCK(hd_lock); static struct request_queue *hd_queue; +static struct request *hd_req; #define MAJOR_NR HD_MAJOR -#define QUEUE (hd_queue) -#define CURRENT elv_next_request(hd_queue) #define TIMEOUT_VALUE (6*HZ) #define HD_DELAY 0 @@ -195,11 +194,24 @@ static void __init hd_setup(char *str, int *ints) NR_HD = hdind+1; } +static bool hd_end_request(int err, unsigned int bytes) +{ + if (__blk_end_request(hd_req, err, bytes)) + return true; + hd_req = NULL; + return false; +} + +static bool hd_end_request_cur(int err) +{ + return hd_end_request(err, blk_rq_cur_bytes(hd_req)); +} + static void dump_status(const char *msg, unsigned int stat) { char *name = "hd?"; - if (CURRENT) - name = CURRENT->rq_disk->disk_name; + if (hd_req) + name = hd_req->rq_disk->disk_name; #ifdef VERBOSE_ERRORS printk("%s: %s: status=0x%02x { ", name, msg, stat & 0xff); @@ -227,8 +239,8 @@ static void dump_status(const char *msg, unsigned int stat) if (hd_error & (BBD_ERR|ECC_ERR|ID_ERR|MARK_ERR)) { printk(", CHS=%d/%d/%d", (inb(HD_HCYL)<<8) + inb(HD_LCYL), inb(HD_CURRENT) & 0xf, inb(HD_SECTOR)); - if (CURRENT) - printk(", sector=%ld", CURRENT->sector); + if (hd_req) + printk(", sector=%ld", blk_rq_pos(hd_req)); } printk("\n"); } @@ -406,11 +418,12 @@ static void unexpected_hd_interrupt(void) */ static void bad_rw_intr(void) { - struct request *req = CURRENT; + struct request *req = hd_req; + if (req != NULL) { struct hd_i_struct *disk = req->rq_disk->private_data; if (++req->errors >= MAX_ERRORS || (hd_error & BBD_ERR)) { - end_request(req, 0); + hd_end_request_cur(-EIO); disk->special_op = disk->recalibrate = 1; } else if (req->errors % RESET_FREQ == 0) reset = 1; @@ -452,37 +465,30 @@ static void read_intr(void) bad_rw_intr(); hd_request(); return; + ok_to_read: - req = CURRENT; + req = hd_req; insw(HD_DATA, req->buffer, 256); - req->sector++; - req->buffer += 512; - req->errors = 0; - i = --req->nr_sectors; - --req->current_nr_sectors; #ifdef DEBUG - printk("%s: read: sector %ld, remaining = %ld, buffer=%p\n", - req->rq_disk->disk_name, req->sector, req->nr_sectors, - req->buffer+512); + printk("%s: read: sector %ld, remaining = %u, buffer=%p\n", + req->rq_disk->disk_name, blk_rq_pos(req) + 1, + blk_rq_sectors(req) - 1, req->buffer+512); #endif - if (req->current_nr_sectors <= 0) - end_request(req, 1); - if (i > 0) { + if (hd_end_request(0, 512)) { SET_HANDLER(&read_intr); return; } + (void) inb_p(HD_STATUS); #if (HD_DELAY > 0) last_req = read_timer(); #endif - if (elv_next_request(QUEUE)) - hd_request(); - return; + hd_request(); } static void write_intr(void) { - struct request *req = CURRENT; + struct request *req = hd_req; int i; int retries = 100000; @@ -492,30 +498,25 @@ static void write_intr(void) continue; if (!OK_STATUS(i)) break; - if ((req->nr_sectors <= 1) || (i & DRQ_STAT)) + if ((blk_rq_sectors(req) <= 1) || (i & DRQ_STAT)) goto ok_to_write; } while (--retries > 0); dump_status("write_intr", i); bad_rw_intr(); hd_request(); return; + ok_to_write: - req->sector++; - i = --req->nr_sectors; - --req->current_nr_sectors; - req->buffer += 512; - if (!i || (req->bio && req->current_nr_sectors <= 0)) - end_request(req, 1); - if (i > 0) { + if (hd_end_request(0, 512)) { SET_HANDLER(&write_intr); outsw(HD_DATA, req->buffer, 256); - } else { + return; + } + #if (HD_DELAY > 0) - last_req = read_timer(); + last_req = read_timer(); #endif - hd_request(); - } - return; + hd_request(); } static void recal_intr(void) @@ -537,18 +538,18 @@ static void hd_times_out(unsigned long dummy) do_hd = NULL; - if (!CURRENT) + if (!hd_req) return; spin_lock_irq(hd_queue->queue_lock); reset = 1; - name = CURRENT->rq_disk->disk_name; + name = hd_req->rq_disk->disk_name; printk("%s: timeout\n", name); - if (++CURRENT->errors >= MAX_ERRORS) { + if (++hd_req->errors >= MAX_ERRORS) { #ifdef DEBUG printk("%s: too many errors\n", name); #endif - end_request(CURRENT, 0); + hd_end_request_cur(-EIO); } hd_request(); spin_unlock_irq(hd_queue->queue_lock); @@ -563,7 +564,7 @@ static int do_special_op(struct hd_i_struct *disk, struct request *req) } if (disk->head > 16) { printk("%s: cannot handle device with more than 16 heads - giving up\n", req->rq_disk->disk_name); - end_request(req, 0); + hd_end_request_cur(-EIO); } disk->special_op = 0; return 1; @@ -590,24 +591,27 @@ static void hd_request(void) repeat: del_timer(&device_timer); - req = CURRENT; - if (!req) { - do_hd = NULL; - return; + if (!hd_req) { + hd_req = blk_fetch_request(hd_queue); + if (!hd_req) { + do_hd = NULL; + return; + } } + req = hd_req; if (reset) { reset_hd(); return; } disk = req->rq_disk->private_data; - block = req->sector; - nsect = req->nr_sectors; + block = blk_rq_pos(req); + nsect = blk_rq_sectors(req); if (block >= get_capacity(req->rq_disk) || ((block+nsect) > get_capacity(req->rq_disk))) { printk("%s: bad access: block=%d, count=%d\n", req->rq_disk->disk_name, block, nsect); - end_request(req, 0); + hd_end_request_cur(-EIO); goto repeat; } @@ -647,7 +651,7 @@ repeat: break; default: printk("unknown hd-command\n"); - end_request(req, 0); + hd_end_request_cur(-EIO); break; } } @@ -720,7 +724,7 @@ static int __init hd_init(void) blk_queue_max_sectors(hd_queue, 255); init_timer(&device_timer); device_timer.function = hd_times_out; - blk_queue_hardsect_size(hd_queue, 512); + blk_queue_logical_block_size(hd_queue, 512); if (!NR_HD) { /* diff --git a/drivers/block/loop.c b/drivers/block/loop.c index ddae8082589..801f4ab8330 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -511,11 +511,7 @@ out: */ static void loop_add_bio(struct loop_device *lo, struct bio *bio) { - if (lo->lo_biotail) { - lo->lo_biotail->bi_next = bio; - lo->lo_biotail = bio; - } else - lo->lo_bio = lo->lo_biotail = bio; + bio_list_add(&lo->lo_bio_list, bio); } /* @@ -523,16 +519,7 @@ static void loop_add_bio(struct loop_device *lo, struct bio *bio) */ static struct bio *loop_get_bio(struct loop_device *lo) { - struct bio *bio; - - if ((bio = lo->lo_bio)) { - if (bio == lo->lo_biotail) - lo->lo_biotail = NULL; - lo->lo_bio = bio->bi_next; - bio->bi_next = NULL; - } - - return bio; + return bio_list_pop(&lo->lo_bio_list); } static int loop_make_request(struct request_queue *q, struct bio *old_bio) @@ -609,12 +596,13 @@ static int loop_thread(void *data) set_user_nice(current, -20); - while (!kthread_should_stop() || lo->lo_bio) { + while (!kthread_should_stop() || !bio_list_empty(&lo->lo_bio_list)) { wait_event_interruptible(lo->lo_event, - lo->lo_bio || kthread_should_stop()); + !bio_list_empty(&lo->lo_bio_list) || + kthread_should_stop()); - if (!lo->lo_bio) + if (bio_list_empty(&lo->lo_bio_list)) continue; spin_lock_irq(&lo->lo_lock); bio = loop_get_bio(lo); @@ -721,10 +709,6 @@ static int loop_change_fd(struct loop_device *lo, struct block_device *bdev, if (!S_ISREG(inode->i_mode) && !S_ISBLK(inode->i_mode)) goto out_putf; - /* new backing store needs to support loop (eg splice_read) */ - if (!inode->i_fop->splice_read) - goto out_putf; - /* size of the new backing store needs to be the same */ if (get_loop_size(lo, file) != get_loop_size(lo, old_file)) goto out_putf; @@ -800,12 +784,7 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode, error = -EINVAL; if (S_ISREG(inode->i_mode) || S_ISBLK(inode->i_mode)) { const struct address_space_operations *aops = mapping->a_ops; - /* - * If we can't read - sorry. If we only can't write - well, - * it's going to be read-only. - */ - if (!file->f_op->splice_read) - goto out_putf; + if (aops->write_begin) lo_flags |= LO_FLAGS_USE_AOPS; if (!(lo_flags & LO_FLAGS_USE_AOPS) && !file->f_op->write) @@ -841,7 +820,7 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode, lo->old_gfp_mask = mapping_gfp_mask(mapping); mapping_set_gfp_mask(mapping, lo->old_gfp_mask & ~(__GFP_IO|__GFP_FS)); - lo->lo_bio = lo->lo_biotail = NULL; + bio_list_init(&lo->lo_bio_list); /* * set queue make_request_fn, and add limits based on lower level diff --git a/drivers/block/mg_disk.c b/drivers/block/mg_disk.c index f3898353d0a..60de5a01e71 100644 --- a/drivers/block/mg_disk.c +++ b/drivers/block/mg_disk.c @@ -17,71 +17,220 @@ #include <linux/fs.h> #include <linux/blkdev.h> #include <linux/hdreg.h> -#include <linux/libata.h> +#include <linux/ata.h> #include <linux/interrupt.h> #include <linux/delay.h> #include <linux/platform_device.h> #include <linux/gpio.h> -#include <linux/mg_disk.h> #define MG_RES_SEC (CONFIG_MG_DISK_RES << 1) +/* name for block device */ +#define MG_DISK_NAME "mgd" +/* name for platform device */ +#define MG_DEV_NAME "mg_disk" + +#define MG_DISK_MAJ 0 +#define MG_DISK_MAX_PART 16 +#define MG_SECTOR_SIZE 512 +#define MG_MAX_SECTS 256 + +/* Register offsets */ +#define MG_BUFF_OFFSET 0x8000 +#define MG_STORAGE_BUFFER_SIZE 0x200 +#define MG_REG_OFFSET 0xC000 +#define MG_REG_FEATURE (MG_REG_OFFSET + 2) /* write case */ +#define MG_REG_ERROR (MG_REG_OFFSET + 2) /* read case */ +#define MG_REG_SECT_CNT (MG_REG_OFFSET + 4) +#define MG_REG_SECT_NUM (MG_REG_OFFSET + 6) +#define MG_REG_CYL_LOW (MG_REG_OFFSET + 8) +#define MG_REG_CYL_HIGH (MG_REG_OFFSET + 0xA) +#define MG_REG_DRV_HEAD (MG_REG_OFFSET + 0xC) +#define MG_REG_COMMAND (MG_REG_OFFSET + 0xE) /* write case */ +#define MG_REG_STATUS (MG_REG_OFFSET + 0xE) /* read case */ +#define MG_REG_DRV_CTRL (MG_REG_OFFSET + 0x10) +#define MG_REG_BURST_CTRL (MG_REG_OFFSET + 0x12) + +/* handy status */ +#define MG_STAT_READY (ATA_DRDY | ATA_DSC) +#define MG_READY_OK(s) (((s) & (MG_STAT_READY | (ATA_BUSY | ATA_DF | \ + ATA_ERR))) == MG_STAT_READY) + +/* error code for others */ +#define MG_ERR_NONE 0 +#define MG_ERR_TIMEOUT 0x100 +#define MG_ERR_INIT_STAT 0x101 +#define MG_ERR_TRANSLATION 0x102 +#define MG_ERR_CTRL_RST 0x103 +#define MG_ERR_INV_STAT 0x104 +#define MG_ERR_RSTOUT 0x105 + +#define MG_MAX_ERRORS 6 /* Max read/write errors */ + +/* command */ +#define MG_CMD_RD 0x20 +#define MG_CMD_WR 0x30 +#define MG_CMD_SLEEP 0x99 +#define MG_CMD_WAKEUP 0xC3 +#define MG_CMD_ID 0xEC +#define MG_CMD_WR_CONF 0x3C +#define MG_CMD_RD_CONF 0x40 + +/* operation mode */ +#define MG_OP_CASCADE (1 << 0) +#define MG_OP_CASCADE_SYNC_RD (1 << 1) +#define MG_OP_CASCADE_SYNC_WR (1 << 2) +#define MG_OP_INTERLEAVE (1 << 3) + +/* synchronous */ +#define MG_BURST_LAT_4 (3 << 4) +#define MG_BURST_LAT_5 (4 << 4) +#define MG_BURST_LAT_6 (5 << 4) +#define MG_BURST_LAT_7 (6 << 4) +#define MG_BURST_LAT_8 (7 << 4) +#define MG_BURST_LEN_4 (1 << 1) +#define MG_BURST_LEN_8 (2 << 1) +#define MG_BURST_LEN_16 (3 << 1) +#define MG_BURST_LEN_32 (4 << 1) +#define MG_BURST_LEN_CONT (0 << 1) + +/* timeout value (unit: ms) */ +#define MG_TMAX_CONF_TO_CMD 1 +#define MG_TMAX_WAIT_RD_DRQ 10 +#define MG_TMAX_WAIT_WR_DRQ 500 +#define MG_TMAX_RST_TO_BUSY 10 +#define MG_TMAX_HDRST_TO_RDY 500 +#define MG_TMAX_SWRST_TO_RDY 500 +#define MG_TMAX_RSTOUT 3000 + +/* device attribution */ +/* use mflash as boot device */ +#define MG_BOOT_DEV (1 << 0) +/* use mflash as storage device */ +#define MG_STORAGE_DEV (1 << 1) +/* same as MG_STORAGE_DEV, but bootloader already done reset sequence */ +#define MG_STORAGE_DEV_SKIP_RST (1 << 2) + +#define MG_DEV_MASK (MG_BOOT_DEV | MG_STORAGE_DEV | MG_STORAGE_DEV_SKIP_RST) + +/* names of GPIO resource */ +#define MG_RST_PIN "mg_rst" +/* except MG_BOOT_DEV, reset-out pin should be assigned */ +#define MG_RSTOUT_PIN "mg_rstout" + +/* private driver data */ +struct mg_drv_data { + /* disk resource */ + u32 use_polling; + + /* device attribution */ + u32 dev_attr; + + /* internally used */ + struct mg_host *host; +}; + +/* main structure for mflash driver */ +struct mg_host { + struct device *dev; + + struct request_queue *breq; + struct request *req; + spinlock_t lock; + struct gendisk *gd; + + struct timer_list timer; + void (*mg_do_intr) (struct mg_host *); + + u16 id[ATA_ID_WORDS]; + + u16 cyls; + u16 heads; + u16 sectors; + u32 n_sectors; + u32 nres_sectors; + + void __iomem *dev_base; + unsigned int irq; + unsigned int rst; + unsigned int rstout; + + u32 major; + u32 error; +}; + +/* + * Debugging macro and defines + */ +#undef DO_MG_DEBUG +#ifdef DO_MG_DEBUG +# define MG_DBG(fmt, args...) \ + printk(KERN_DEBUG "%s:%d "fmt, __func__, __LINE__, ##args) +#else /* CONFIG_MG_DEBUG */ +# define MG_DBG(fmt, args...) do { } while (0) +#endif /* CONFIG_MG_DEBUG */ + static void mg_request(struct request_queue *); +static bool mg_end_request(struct mg_host *host, int err, unsigned int nr_bytes) +{ + if (__blk_end_request(host->req, err, nr_bytes)) + return true; + + host->req = NULL; + return false; +} + +static bool mg_end_request_cur(struct mg_host *host, int err) +{ + return mg_end_request(host, err, blk_rq_cur_bytes(host->req)); +} + static void mg_dump_status(const char *msg, unsigned int stat, struct mg_host *host) { char *name = MG_DISK_NAME; - struct request *req; - if (host->breq) { - req = elv_next_request(host->breq); - if (req) - name = req->rq_disk->disk_name; - } + if (host->req) + name = host->req->rq_disk->disk_name; printk(KERN_ERR "%s: %s: status=0x%02x { ", name, msg, stat & 0xff); - if (stat & MG_REG_STATUS_BIT_BUSY) + if (stat & ATA_BUSY) printk("Busy "); - if (stat & MG_REG_STATUS_BIT_READY) + if (stat & ATA_DRDY) printk("DriveReady "); - if (stat & MG_REG_STATUS_BIT_WRITE_FAULT) + if (stat & ATA_DF) printk("WriteFault "); - if (stat & MG_REG_STATUS_BIT_SEEK_DONE) + if (stat & ATA_DSC) printk("SeekComplete "); - if (stat & MG_REG_STATUS_BIT_DATA_REQ) + if (stat & ATA_DRQ) printk("DataRequest "); - if (stat & MG_REG_STATUS_BIT_CORRECTED_ERROR) + if (stat & ATA_CORR) printk("CorrectedError "); - if (stat & MG_REG_STATUS_BIT_ERROR) + if (stat & ATA_ERR) printk("Error "); printk("}\n"); - if ((stat & MG_REG_STATUS_BIT_ERROR) == 0) { + if ((stat & ATA_ERR) == 0) { host->error = 0; } else { host->error = inb((unsigned long)host->dev_base + MG_REG_ERROR); printk(KERN_ERR "%s: %s: error=0x%02x { ", name, msg, host->error & 0xff); - if (host->error & MG_REG_ERR_BBK) + if (host->error & ATA_BBK) printk("BadSector "); - if (host->error & MG_REG_ERR_UNC) + if (host->error & ATA_UNC) printk("UncorrectableError "); - if (host->error & MG_REG_ERR_IDNF) + if (host->error & ATA_IDNF) printk("SectorIdNotFound "); - if (host->error & MG_REG_ERR_ABRT) + if (host->error & ATA_ABORTED) printk("DriveStatusError "); - if (host->error & MG_REG_ERR_AMNF) + if (host->error & ATA_AMNF) printk("AddrMarkNotFound "); printk("}"); - if (host->error & - (MG_REG_ERR_BBK | MG_REG_ERR_UNC | - MG_REG_ERR_IDNF | MG_REG_ERR_AMNF)) { - if (host->breq) { - req = elv_next_request(host->breq); - if (req) - printk(", sector=%u", (u32)req->sector); - } - + if (host->error & (ATA_BBK | ATA_UNC | ATA_IDNF | ATA_AMNF)) { + if (host->req) + printk(", sector=%u", + (unsigned int)blk_rq_pos(host->req)); } printk("\n"); } @@ -100,12 +249,12 @@ static unsigned int mg_wait(struct mg_host *host, u32 expect, u32 msec) do { cur_jiffies = jiffies; - if (status & MG_REG_STATUS_BIT_BUSY) { - if (expect == MG_REG_STATUS_BIT_BUSY) + if (status & ATA_BUSY) { + if (expect == ATA_BUSY) break; } else { /* Check the error condition! */ - if (status & MG_REG_STATUS_BIT_ERROR) { + if (status & ATA_ERR) { mg_dump_status("mg_wait", status, host); break; } @@ -114,8 +263,8 @@ static unsigned int mg_wait(struct mg_host *host, u32 expect, u32 msec) if (MG_READY_OK(status)) break; - if (expect == MG_REG_STATUS_BIT_DATA_REQ) - if (status & MG_REG_STATUS_BIT_DATA_REQ) + if (expect == ATA_DRQ) + if (status & ATA_DRQ) break; } if (!msec) { @@ -173,6 +322,42 @@ static irqreturn_t mg_irq(int irq, void *dev_id) return IRQ_HANDLED; } +/* local copy of ata_id_string() */ +static void mg_id_string(const u16 *id, unsigned char *s, + unsigned int ofs, unsigned int len) +{ + unsigned int c; + + BUG_ON(len & 1); + + while (len > 0) { + c = id[ofs] >> 8; + *s = c; + s++; + + c = id[ofs] & 0xff; + *s = c; + s++; + + ofs++; + len -= 2; + } +} + +/* local copy of ata_id_c_string() */ +static void mg_id_c_string(const u16 *id, unsigned char *s, + unsigned int ofs, unsigned int len) +{ + unsigned char *p; + + mg_id_string(id, s, ofs, len - 1); + + p = s + strnlen(s, len - 1); + while (p > s && p[-1] == ' ') + p--; + *p = '\0'; +} + static int mg_get_disk_id(struct mg_host *host) { u32 i; @@ -184,12 +369,10 @@ static int mg_get_disk_id(struct mg_host *host) char serial[ATA_ID_SERNO_LEN + 1]; if (!prv_data->use_polling) - outb(MG_REG_CTRL_INTR_DISABLE, - (unsigned long)host->dev_base + - MG_REG_DRV_CTRL); + outb(ATA_NIEN, (unsigned long)host->dev_base + MG_REG_DRV_CTRL); outb(MG_CMD_ID, (unsigned long)host->dev_base + MG_REG_COMMAND); - err = mg_wait(host, MG_REG_STATUS_BIT_DATA_REQ, MG_TMAX_WAIT_RD_DRQ); + err = mg_wait(host, ATA_DRQ, MG_TMAX_WAIT_RD_DRQ); if (err) return err; @@ -219,9 +402,9 @@ static int mg_get_disk_id(struct mg_host *host) host->n_sectors -= host->nres_sectors; } - ata_id_c_string(id, fwrev, ATA_ID_FW_REV, sizeof(fwrev)); - ata_id_c_string(id, model, ATA_ID_PROD, sizeof(model)); - ata_id_c_string(id, serial, ATA_ID_SERNO, sizeof(serial)); + mg_id_c_string(id, fwrev, ATA_ID_FW_REV, sizeof(fwrev)); + mg_id_c_string(id, model, ATA_ID_PROD, sizeof(model)); + mg_id_c_string(id, serial, ATA_ID_SERNO, sizeof(serial)); printk(KERN_INFO "mg_disk: model: %s\n", model); printk(KERN_INFO "mg_disk: firm: %.8s\n", fwrev); printk(KERN_INFO "mg_disk: serial: %s\n", serial); @@ -229,8 +412,7 @@ static int mg_get_disk_id(struct mg_host *host) host->n_sectors, host->nres_sectors); if (!prv_data->use_polling) - outb(MG_REG_CTRL_INTR_ENABLE, (unsigned long)host->dev_base + - MG_REG_DRV_CTRL); + outb(0, (unsigned long)host->dev_base + MG_REG_DRV_CTRL); return err; } @@ -244,7 +426,7 @@ static int mg_disk_init(struct mg_host *host) /* hdd rst low */ gpio_set_value(host->rst, 0); - err = mg_wait(host, MG_REG_STATUS_BIT_BUSY, MG_TMAX_RST_TO_BUSY); + err = mg_wait(host, ATA_BUSY, MG_TMAX_RST_TO_BUSY); if (err) return err; @@ -255,17 +437,14 @@ static int mg_disk_init(struct mg_host *host) return err; /* soft reset on */ - outb(MG_REG_CTRL_RESET | - (prv_data->use_polling ? MG_REG_CTRL_INTR_DISABLE : - MG_REG_CTRL_INTR_ENABLE), + outb(ATA_SRST | (prv_data->use_polling ? ATA_NIEN : 0), (unsigned long)host->dev_base + MG_REG_DRV_CTRL); - err = mg_wait(host, MG_REG_STATUS_BIT_BUSY, MG_TMAX_RST_TO_BUSY); + err = mg_wait(host, ATA_BUSY, MG_TMAX_RST_TO_BUSY); if (err) return err; /* soft reset off */ - outb(prv_data->use_polling ? MG_REG_CTRL_INTR_DISABLE : - MG_REG_CTRL_INTR_ENABLE, + outb(prv_data->use_polling ? ATA_NIEN : 0, (unsigned long)host->dev_base + MG_REG_DRV_CTRL); err = mg_wait(host, MG_STAT_READY, MG_TMAX_SWRST_TO_RDY); if (err) @@ -281,11 +460,10 @@ static int mg_disk_init(struct mg_host *host) static void mg_bad_rw_intr(struct mg_host *host) { - struct request *req = elv_next_request(host->breq); - if (req != NULL) - if (++req->errors >= MG_MAX_ERRORS || - host->error == MG_ERR_TIMEOUT) - end_request(req, 0); + if (host->req) + if (++host->req->errors >= MG_MAX_ERRORS || + host->error == MG_ERR_TIMEOUT) + mg_end_request_cur(host, -EIO); } static unsigned int mg_out(struct mg_host *host, @@ -311,7 +489,7 @@ static unsigned int mg_out(struct mg_host *host, MG_REG_CYL_LOW); outb((u8)(sect_num >> 16), (unsigned long)host->dev_base + MG_REG_CYL_HIGH); - outb((u8)((sect_num >> 24) | MG_REG_HEAD_LBA_MODE), + outb((u8)((sect_num >> 24) | ATA_LBA | ATA_DEVICE_OBS), (unsigned long)host->dev_base + MG_REG_DRV_HEAD); outb(cmd, (unsigned long)host->dev_base + MG_REG_COMMAND); return MG_ERR_NONE; @@ -319,105 +497,77 @@ static unsigned int mg_out(struct mg_host *host, static void mg_read(struct request *req) { - u32 remains, j; + u32 j; struct mg_host *host = req->rq_disk->private_data; - remains = req->nr_sectors; - - if (mg_out(host, req->sector, req->nr_sectors, MG_CMD_RD, NULL) != - MG_ERR_NONE) + if (mg_out(host, blk_rq_pos(req), blk_rq_sectors(req), + MG_CMD_RD, NULL) != MG_ERR_NONE) mg_bad_rw_intr(host); MG_DBG("requested %d sects (from %ld), buffer=0x%p\n", - remains, req->sector, req->buffer); + blk_rq_sectors(req), blk_rq_pos(req), req->buffer); + + do { + u16 *buff = (u16 *)req->buffer; - while (remains) { - if (mg_wait(host, MG_REG_STATUS_BIT_DATA_REQ, - MG_TMAX_WAIT_RD_DRQ) != MG_ERR_NONE) { + if (mg_wait(host, ATA_DRQ, + MG_TMAX_WAIT_RD_DRQ) != MG_ERR_NONE) { mg_bad_rw_intr(host); return; } - for (j = 0; j < MG_SECTOR_SIZE >> 1; j++) { - *(u16 *)req->buffer = - inw((unsigned long)host->dev_base + - MG_BUFF_OFFSET + (j << 1)); - req->buffer += 2; - } - - req->sector++; - req->errors = 0; - remains = --req->nr_sectors; - --req->current_nr_sectors; - - if (req->current_nr_sectors <= 0) { - MG_DBG("remain : %d sects\n", remains); - end_request(req, 1); - if (remains > 0) - req = elv_next_request(host->breq); - } + for (j = 0; j < MG_SECTOR_SIZE >> 1; j++) + *buff++ = inw((unsigned long)host->dev_base + + MG_BUFF_OFFSET + (j << 1)); outb(MG_CMD_RD_CONF, (unsigned long)host->dev_base + MG_REG_COMMAND); - } + } while (mg_end_request(host, 0, MG_SECTOR_SIZE)); } static void mg_write(struct request *req) { - u32 remains, j; + u32 j; struct mg_host *host = req->rq_disk->private_data; - remains = req->nr_sectors; - - if (mg_out(host, req->sector, req->nr_sectors, MG_CMD_WR, NULL) != - MG_ERR_NONE) { + if (mg_out(host, blk_rq_pos(req), blk_rq_sectors(req), + MG_CMD_WR, NULL) != MG_ERR_NONE) { mg_bad_rw_intr(host); return; } - MG_DBG("requested %d sects (from %ld), buffer=0x%p\n", - remains, req->sector, req->buffer); - while (remains) { - if (mg_wait(host, MG_REG_STATUS_BIT_DATA_REQ, - MG_TMAX_WAIT_WR_DRQ) != MG_ERR_NONE) { + blk_rq_sectors(req), blk_rq_pos(req), req->buffer); + + do { + u16 *buff = (u16 *)req->buffer; + + if (mg_wait(host, ATA_DRQ, MG_TMAX_WAIT_WR_DRQ) != MG_ERR_NONE) { mg_bad_rw_intr(host); return; } - for (j = 0; j < MG_SECTOR_SIZE >> 1; j++) { - outw(*(u16 *)req->buffer, - (unsigned long)host->dev_base + - MG_BUFF_OFFSET + (j << 1)); - req->buffer += 2; - } - req->sector++; - remains = --req->nr_sectors; - --req->current_nr_sectors; - - if (req->current_nr_sectors <= 0) { - MG_DBG("remain : %d sects\n", remains); - end_request(req, 1); - if (remains > 0) - req = elv_next_request(host->breq); - } + for (j = 0; j < MG_SECTOR_SIZE >> 1; j++) + outw(*buff++, (unsigned long)host->dev_base + + MG_BUFF_OFFSET + (j << 1)); outb(MG_CMD_WR_CONF, (unsigned long)host->dev_base + MG_REG_COMMAND); - } + } while (mg_end_request(host, 0, MG_SECTOR_SIZE)); } static void mg_read_intr(struct mg_host *host) { + struct request *req = host->req; u32 i; - struct request *req; + u16 *buff; /* check status */ do { i = inb((unsigned long)host->dev_base + MG_REG_STATUS); - if (i & MG_REG_STATUS_BIT_BUSY) + if (i & ATA_BUSY) break; if (!MG_READY_OK(i)) break; - if (i & MG_REG_STATUS_BIT_DATA_REQ) + if (i & ATA_DRQ) goto ok_to_read; } while (0); mg_dump_status("mg_read_intr", i, host); @@ -427,60 +577,42 @@ static void mg_read_intr(struct mg_host *host) ok_to_read: /* get current segment of request */ - req = elv_next_request(host->breq); + buff = (u16 *)req->buffer; /* read 1 sector */ - for (i = 0; i < MG_SECTOR_SIZE >> 1; i++) { - *(u16 *)req->buffer = - inw((unsigned long)host->dev_base + MG_BUFF_OFFSET + - (i << 1)); - req->buffer += 2; - } + for (i = 0; i < MG_SECTOR_SIZE >> 1; i++) + *buff++ = inw((unsigned long)host->dev_base + MG_BUFF_OFFSET + + (i << 1)); - /* manipulate request */ MG_DBG("sector %ld, remaining=%ld, buffer=0x%p\n", - req->sector, req->nr_sectors - 1, req->buffer); - - req->sector++; - req->errors = 0; - i = --req->nr_sectors; - --req->current_nr_sectors; - - /* let know if current segment done */ - if (req->current_nr_sectors <= 0) - end_request(req, 1); - - /* set handler if read remains */ - if (i > 0) { - host->mg_do_intr = mg_read_intr; - mod_timer(&host->timer, jiffies + 3 * HZ); - } + blk_rq_pos(req), blk_rq_sectors(req) - 1, req->buffer); /* send read confirm */ outb(MG_CMD_RD_CONF, (unsigned long)host->dev_base + MG_REG_COMMAND); - /* goto next request */ - if (!i) + if (mg_end_request(host, 0, MG_SECTOR_SIZE)) { + /* set handler if read remains */ + host->mg_do_intr = mg_read_intr; + mod_timer(&host->timer, jiffies + 3 * HZ); + } else /* goto next request */ mg_request(host->breq); } static void mg_write_intr(struct mg_host *host) { + struct request *req = host->req; u32 i, j; u16 *buff; - struct request *req; - - /* get current segment of request */ - req = elv_next_request(host->breq); + bool rem; /* check status */ do { i = inb((unsigned long)host->dev_base + MG_REG_STATUS); - if (i & MG_REG_STATUS_BIT_BUSY) + if (i & ATA_BUSY) break; if (!MG_READY_OK(i)) break; - if ((req->nr_sectors <= 1) || (i & MG_REG_STATUS_BIT_DATA_REQ)) + if ((blk_rq_sectors(req) <= 1) || (i & ATA_DRQ)) goto ok_to_write; } while (0); mg_dump_status("mg_write_intr", i, host); @@ -489,18 +621,8 @@ static void mg_write_intr(struct mg_host *host) return; ok_to_write: - /* manipulate request */ - req->sector++; - i = --req->nr_sectors; - --req->current_nr_sectors; - req->buffer += MG_SECTOR_SIZE; - - /* let know if current segment or all done */ - if (!i || (req->bio && req->current_nr_sectors <= 0)) - end_request(req, 1); - - /* write 1 sector and set handler if remains */ - if (i > 0) { + if ((rem = mg_end_request(host, 0, MG_SECTOR_SIZE))) { + /* write 1 sector and set handler if remains */ buff = (u16 *)req->buffer; for (j = 0; j < MG_STORAGE_BUFFER_SIZE >> 1; j++) { outw(*buff, (unsigned long)host->dev_base + @@ -508,7 +630,7 @@ ok_to_write: buff++; } MG_DBG("sector %ld, remaining=%ld, buffer=0x%p\n", - req->sector, req->nr_sectors, req->buffer); + blk_rq_pos(req), blk_rq_sectors(req), req->buffer); host->mg_do_intr = mg_write_intr; mod_timer(&host->timer, jiffies + 3 * HZ); } @@ -516,7 +638,7 @@ ok_to_write: /* send write confirm */ outb(MG_CMD_WR_CONF, (unsigned long)host->dev_base + MG_REG_COMMAND); - if (!i) + if (!rem) mg_request(host->breq); } @@ -524,49 +646,45 @@ void mg_times_out(unsigned long data) { struct mg_host *host = (struct mg_host *)data; char *name; - struct request *req; spin_lock_irq(&host->lock); - req = elv_next_request(host->breq); - if (!req) + if (!host->req) goto out_unlock; host->mg_do_intr = NULL; - name = req->rq_disk->disk_name; + name = host->req->rq_disk->disk_name; printk(KERN_DEBUG "%s: timeout\n", name); host->error = MG_ERR_TIMEOUT; mg_bad_rw_intr(host); - mg_request(host->breq); out_unlock: + mg_request(host->breq); spin_unlock_irq(&host->lock); } static void mg_request_poll(struct request_queue *q) { - struct request *req; - struct mg_host *host; + struct mg_host *host = q->queuedata; - while ((req = elv_next_request(q)) != NULL) { - host = req->rq_disk->private_data; - if (blk_fs_request(req)) { - switch (rq_data_dir(req)) { - case READ: - mg_read(req); - break; - case WRITE: - mg_write(req); - break; - default: - printk(KERN_WARNING "%s:%d unknown command\n", - __func__, __LINE__); - end_request(req, 0); + while (1) { + if (!host->req) { + host->req = blk_fetch_request(q); + if (!host->req) break; - } } + + if (unlikely(!blk_fs_request(host->req))) { + mg_end_request_cur(host, -EIO); + continue; + } + + if (rq_data_dir(host->req) == READ) + mg_read(host->req); + else + mg_write(host->req); } } @@ -588,18 +706,15 @@ static unsigned int mg_issue_req(struct request *req, break; case WRITE: /* TODO : handler */ - outb(MG_REG_CTRL_INTR_DISABLE, - (unsigned long)host->dev_base + - MG_REG_DRV_CTRL); + outb(ATA_NIEN, (unsigned long)host->dev_base + MG_REG_DRV_CTRL); if (mg_out(host, sect_num, sect_cnt, MG_CMD_WR, &mg_write_intr) != MG_ERR_NONE) { mg_bad_rw_intr(host); return host->error; } del_timer(&host->timer); - mg_wait(host, MG_REG_STATUS_BIT_DATA_REQ, MG_TMAX_WAIT_WR_DRQ); - outb(MG_REG_CTRL_INTR_ENABLE, (unsigned long)host->dev_base + - MG_REG_DRV_CTRL); + mg_wait(host, ATA_DRQ, MG_TMAX_WAIT_WR_DRQ); + outb(0, (unsigned long)host->dev_base + MG_REG_DRV_CTRL); if (host->error) { mg_bad_rw_intr(host); return host->error; @@ -614,11 +729,6 @@ static unsigned int mg_issue_req(struct request *req, outb(MG_CMD_WR_CONF, (unsigned long)host->dev_base + MG_REG_COMMAND); break; - default: - printk(KERN_WARNING "%s:%d unknown command\n", - __func__, __LINE__); - end_request(req, 0); - break; } return MG_ERR_NONE; } @@ -626,16 +736,17 @@ static unsigned int mg_issue_req(struct request *req, /* This function also called from IRQ context */ static void mg_request(struct request_queue *q) { + struct mg_host *host = q->queuedata; struct request *req; - struct mg_host *host; u32 sect_num, sect_cnt; while (1) { - req = elv_next_request(q); - if (!req) - return; - - host = req->rq_disk->private_data; + if (!host->req) { + host->req = blk_fetch_request(q); + if (!host->req) + break; + } + req = host->req; /* check unwanted request call */ if (host->mg_do_intr) @@ -643,9 +754,9 @@ static void mg_request(struct request_queue *q) del_timer(&host->timer); - sect_num = req->sector; + sect_num = blk_rq_pos(req); /* deal whole segments */ - sect_cnt = req->nr_sectors; + sect_cnt = blk_rq_sectors(req); /* sanity check */ if (sect_num >= get_capacity(req->rq_disk) || @@ -655,12 +766,14 @@ static void mg_request(struct request_queue *q) "%s: bad access: sector=%d, count=%d\n", req->rq_disk->disk_name, sect_num, sect_cnt); - end_request(req, 0); + mg_end_request_cur(host, -EIO); continue; } - if (!blk_fs_request(req)) - return; + if (unlikely(!blk_fs_request(req))) { + mg_end_request_cur(host, -EIO); + continue; + } if (!mg_issue_req(req, host, sect_num, sect_cnt)) return; @@ -690,9 +803,7 @@ static int mg_suspend(struct platform_device *plat_dev, pm_message_t state) return -EIO; if (!prv_data->use_polling) - outb(MG_REG_CTRL_INTR_DISABLE, - (unsigned long)host->dev_base + - MG_REG_DRV_CTRL); + outb(ATA_NIEN, (unsigned long)host->dev_base + MG_REG_DRV_CTRL); outb(MG_CMD_SLEEP, (unsigned long)host->dev_base + MG_REG_COMMAND); /* wait until mflash deep sleep */ @@ -700,9 +811,7 @@ static int mg_suspend(struct platform_device *plat_dev, pm_message_t state) if (mg_wait(host, MG_STAT_READY, MG_TMAX_CONF_TO_CMD)) { if (!prv_data->use_polling) - outb(MG_REG_CTRL_INTR_ENABLE, - (unsigned long)host->dev_base + - MG_REG_DRV_CTRL); + outb(0, (unsigned long)host->dev_base + MG_REG_DRV_CTRL); return -EIO; } @@ -725,8 +834,7 @@ static int mg_resume(struct platform_device *plat_dev) return -EIO; if (!prv_data->use_polling) - outb(MG_REG_CTRL_INTR_ENABLE, (unsigned long)host->dev_base + - MG_REG_DRV_CTRL); + outb(0, (unsigned long)host->dev_base + MG_REG_DRV_CTRL); return 0; } @@ -877,6 +985,7 @@ static int mg_probe(struct platform_device *plat_dev) __func__, __LINE__); goto probe_err_5; } + host->breq->queuedata = host; /* mflash is random device, thanx for the noop */ elevator_exit(host->breq->elevator); @@ -887,7 +996,7 @@ static int mg_probe(struct platform_device *plat_dev) goto probe_err_6; } blk_queue_max_sectors(host->breq, MG_MAX_SECTS); - blk_queue_hardsect_size(host->breq, MG_SECTOR_SIZE); + blk_queue_logical_block_size(host->breq, MG_SECTOR_SIZE); init_timer(&host->timer); host->timer.function = mg_times_out; diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 4d6de4f15cc..5d23ffad7c7 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -110,7 +110,7 @@ static void nbd_end_request(struct request *req) req, error ? "failed" : "done"); spin_lock_irqsave(q->queue_lock, flags); - __blk_end_request(req, error, req->nr_sectors << 9); + __blk_end_request_all(req, error); spin_unlock_irqrestore(q->queue_lock, flags); } @@ -231,19 +231,19 @@ static int nbd_send_req(struct nbd_device *lo, struct request *req) { int result, flags; struct nbd_request request; - unsigned long size = req->nr_sectors << 9; + unsigned long size = blk_rq_bytes(req); request.magic = htonl(NBD_REQUEST_MAGIC); request.type = htonl(nbd_cmd(req)); - request.from = cpu_to_be64((u64) req->sector << 9); + request.from = cpu_to_be64((u64)blk_rq_pos(req) << 9); request.len = htonl(size); memcpy(request.handle, &req, sizeof(req)); - dprintk(DBG_TX, "%s: request %p: sending control (%s@%llu,%luB)\n", + dprintk(DBG_TX, "%s: request %p: sending control (%s@%llu,%uB)\n", lo->disk->disk_name, req, nbdcmd_to_ascii(nbd_cmd(req)), - (unsigned long long)req->sector << 9, - req->nr_sectors << 9); + (unsigned long long)blk_rq_pos(req) << 9, + blk_rq_bytes(req)); result = sock_xmit(lo, 1, &request, sizeof(request), (nbd_cmd(req) == NBD_CMD_WRITE) ? MSG_MORE : 0); if (result <= 0) { @@ -533,11 +533,9 @@ static void do_nbd_request(struct request_queue *q) { struct request *req; - while ((req = elv_next_request(q)) != NULL) { + while ((req = blk_fetch_request(q)) != NULL) { struct nbd_device *lo; - blkdev_dequeue_request(req); - spin_unlock_irq(q->queue_lock); dprintk(DBG_BLKDEV, "%s: request %p: dequeued (flags=%x)\n", @@ -580,13 +578,6 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *lo, blk_rq_init(NULL, &sreq); sreq.cmd_type = REQ_TYPE_SPECIAL; nbd_cmd(&sreq) = NBD_CMD_DISC; - /* - * Set these to sane values in case server implementation - * fails to check the request type first and also to keep - * debugging output cleaner. - */ - sreq.sector = 0; - sreq.nr_sectors = 0; if (!lo->sock) return -EINVAL; nbd_send_req(lo, &sreq); diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c index e91d4b4b014..911dfd98d81 100644 --- a/drivers/block/paride/pcd.c +++ b/drivers/block/paride/pcd.c @@ -719,32 +719,37 @@ static void do_pcd_request(struct request_queue * q) if (pcd_busy) return; while (1) { - pcd_req = elv_next_request(q); - if (!pcd_req) - return; + if (!pcd_req) { + pcd_req = blk_fetch_request(q); + if (!pcd_req) + return; + } if (rq_data_dir(pcd_req) == READ) { struct pcd_unit *cd = pcd_req->rq_disk->private_data; if (cd != pcd_current) pcd_bufblk = -1; pcd_current = cd; - pcd_sector = pcd_req->sector; - pcd_count = pcd_req->current_nr_sectors; + pcd_sector = blk_rq_pos(pcd_req); + pcd_count = blk_rq_cur_sectors(pcd_req); pcd_buf = pcd_req->buffer; pcd_busy = 1; ps_set_intr(do_pcd_read, NULL, 0, nice); return; - } else - end_request(pcd_req, 0); + } else { + __blk_end_request_all(pcd_req, -EIO); + pcd_req = NULL; + } } } -static inline void next_request(int success) +static inline void next_request(int err) { unsigned long saved_flags; spin_lock_irqsave(&pcd_lock, saved_flags); - end_request(pcd_req, success); + if (!__blk_end_request_cur(pcd_req, err)) + pcd_req = NULL; pcd_busy = 0; do_pcd_request(pcd_queue); spin_unlock_irqrestore(&pcd_lock, saved_flags); @@ -781,7 +786,7 @@ static void pcd_start(void) if (pcd_command(pcd_current, rd_cmd, 2048, "read block")) { pcd_bufblk = -1; - next_request(0); + next_request(-EIO); return; } @@ -796,7 +801,7 @@ static void do_pcd_read(void) pcd_retries = 0; pcd_transfer(); if (!pcd_count) { - next_request(1); + next_request(0); return; } @@ -815,7 +820,7 @@ static void do_pcd_read_drq(void) return; } pcd_bufblk = -1; - next_request(0); + next_request(-EIO); return; } diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c index 9299455b0af..bf5955b3d87 100644 --- a/drivers/block/paride/pd.c +++ b/drivers/block/paride/pd.c @@ -410,10 +410,12 @@ static void run_fsm(void) pd_claimed = 0; phase = NULL; spin_lock_irqsave(&pd_lock, saved_flags); - end_request(pd_req, res); - pd_req = elv_next_request(pd_queue); - if (!pd_req) - stop = 1; + if (!__blk_end_request_cur(pd_req, + res == Ok ? 0 : -EIO)) { + pd_req = blk_fetch_request(pd_queue); + if (!pd_req) + stop = 1; + } spin_unlock_irqrestore(&pd_lock, saved_flags); if (stop) return; @@ -443,11 +445,11 @@ static enum action do_pd_io_start(void) pd_cmd = rq_data_dir(pd_req); if (pd_cmd == READ || pd_cmd == WRITE) { - pd_block = pd_req->sector; - pd_count = pd_req->current_nr_sectors; + pd_block = blk_rq_pos(pd_req); + pd_count = blk_rq_cur_sectors(pd_req); if (pd_block + pd_count > get_capacity(pd_req->rq_disk)) return Fail; - pd_run = pd_req->nr_sectors; + pd_run = blk_rq_sectors(pd_req); pd_buf = pd_req->buffer; pd_retries = 0; if (pd_cmd == READ) @@ -477,8 +479,8 @@ static int pd_next_buf(void) if (pd_count) return 0; spin_lock_irqsave(&pd_lock, saved_flags); - end_request(pd_req, 1); - pd_count = pd_req->current_nr_sectors; + __blk_end_request_cur(pd_req, 0); + pd_count = blk_rq_cur_sectors(pd_req); pd_buf = pd_req->buffer; spin_unlock_irqrestore(&pd_lock, saved_flags); return 0; @@ -702,7 +704,7 @@ static void do_pd_request(struct request_queue * q) { if (pd_req) return; - pd_req = elv_next_request(q); + pd_req = blk_fetch_request(q); if (!pd_req) return; diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c index bef3b997ba3..68a90834e99 100644 --- a/drivers/block/paride/pf.c +++ b/drivers/block/paride/pf.c @@ -750,12 +750,10 @@ static int pf_ready(void) static struct request_queue *pf_queue; -static void pf_end_request(int uptodate) +static void pf_end_request(int err) { - if (pf_req) { - end_request(pf_req, uptodate); + if (pf_req && !__blk_end_request_cur(pf_req, err)) pf_req = NULL; - } } static void do_pf_request(struct request_queue * q) @@ -763,17 +761,19 @@ static void do_pf_request(struct request_queue * q) if (pf_busy) return; repeat: - pf_req = elv_next_request(q); - if (!pf_req) - return; + if (!pf_req) { + pf_req = blk_fetch_request(q); + if (!pf_req) + return; + } pf_current = pf_req->rq_disk->private_data; - pf_block = pf_req->sector; - pf_run = pf_req->nr_sectors; - pf_count = pf_req->current_nr_sectors; + pf_block = blk_rq_pos(pf_req); + pf_run = blk_rq_sectors(pf_req); + pf_count = blk_rq_cur_sectors(pf_req); if (pf_block + pf_count > get_capacity(pf_req->rq_disk)) { - pf_end_request(0); + pf_end_request(-EIO); goto repeat; } @@ -788,7 +788,7 @@ repeat: pi_do_claimed(pf_current->pi, do_pf_write); else { pf_busy = 0; - pf_end_request(0); + pf_end_request(-EIO); goto repeat; } } @@ -805,23 +805,22 @@ static int pf_next_buf(void) return 1; if (!pf_count) { spin_lock_irqsave(&pf_spin_lock, saved_flags); - pf_end_request(1); - pf_req = elv_next_request(pf_queue); + pf_end_request(0); spin_unlock_irqrestore(&pf_spin_lock, saved_flags); if (!pf_req) return 1; - pf_count = pf_req->current_nr_sectors; + pf_count = blk_rq_cur_sectors(pf_req); pf_buf = pf_req->buffer; } return 0; } -static inline void next_request(int success) +static inline void next_request(int err) { unsigned long saved_flags; spin_lock_irqsave(&pf_spin_lock, saved_flags); - pf_end_request(success); + pf_end_request(err); pf_busy = 0; do_pf_request(pf_queue); spin_unlock_irqrestore(&pf_spin_lock, saved_flags); @@ -844,7 +843,7 @@ static void do_pf_read_start(void) pi_do_claimed(pf_current->pi, do_pf_read_start); return; } - next_request(0); + next_request(-EIO); return; } pf_mask = STAT_DRQ; @@ -863,7 +862,7 @@ static void do_pf_read_drq(void) pi_do_claimed(pf_current->pi, do_pf_read_start); return; } - next_request(0); + next_request(-EIO); return; } pi_read_block(pf_current->pi, pf_buf, 512); @@ -871,7 +870,7 @@ static void do_pf_read_drq(void) break; } pi_disconnect(pf_current->pi); - next_request(1); + next_request(0); } static void do_pf_write(void) @@ -890,7 +889,7 @@ static void do_pf_write_start(void) pi_do_claimed(pf_current->pi, do_pf_write_start); return; } - next_request(0); + next_request(-EIO); return; } @@ -903,7 +902,7 @@ static void do_pf_write_start(void) pi_do_claimed(pf_current->pi, do_pf_write_start); return; } - next_request(0); + next_request(-EIO); return; } pi_write_block(pf_current->pi, pf_buf, 512); @@ -923,11 +922,11 @@ static void do_pf_write_done(void) pi_do_claimed(pf_current->pi, do_pf_write_start); return; } - next_request(0); + next_request(-EIO); return; } pi_disconnect(pf_current->pi); - next_request(1); + next_request(0); } static int __init pf_init(void) diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index dc7a8c352da..d57f1175948 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -991,13 +991,15 @@ static void pkt_iosched_process_queue(struct pktcdvd_device *pd) */ static int pkt_set_segment_merging(struct pktcdvd_device *pd, struct request_queue *q) { - if ((pd->settings.size << 9) / CD_FRAMESIZE <= q->max_phys_segments) { + if ((pd->settings.size << 9) / CD_FRAMESIZE + <= queue_max_phys_segments(q)) { /* * The cdrom device can handle one segment/frame */ clear_bit(PACKET_MERGE_SEGS, &pd->flags); return 0; - } else if ((pd->settings.size << 9) / PAGE_SIZE <= q->max_phys_segments) { + } else if ((pd->settings.size << 9) / PAGE_SIZE + <= queue_max_phys_segments(q)) { /* * We can handle this case at the expense of some extra memory * copies during write operations @@ -2657,7 +2659,7 @@ static void pkt_init_queue(struct pktcdvd_device *pd) struct request_queue *q = pd->disk->queue; blk_queue_make_request(q, pkt_make_request); - blk_queue_hardsect_size(q, CD_FRAMESIZE); + blk_queue_logical_block_size(q, CD_FRAMESIZE); blk_queue_max_sectors(q, PACKET_MAX_SECTORS); blk_queue_merge_bvec(q, pkt_merge_bvec); q->queuedata = pd; diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c index bccc42bb921..aaeeb544228 100644 --- a/drivers/block/ps3disk.c +++ b/drivers/block/ps3disk.c @@ -134,13 +134,12 @@ static int ps3disk_submit_request_sg(struct ps3_storage_device *dev, rq_for_each_segment(bv, req, iter) n++; dev_dbg(&dev->sbd.core, - "%s:%u: %s req has %u bvecs for %lu sectors %lu hard sectors\n", - __func__, __LINE__, op, n, req->nr_sectors, - req->hard_nr_sectors); + "%s:%u: %s req has %u bvecs for %u sectors\n", + __func__, __LINE__, op, n, blk_rq_sectors(req)); #endif - start_sector = req->sector * priv->blocking_factor; - sectors = req->nr_sectors * priv->blocking_factor; + start_sector = blk_rq_pos(req) * priv->blocking_factor; + sectors = blk_rq_sectors(req) * priv->blocking_factor; dev_dbg(&dev->sbd.core, "%s:%u: %s %llu sectors starting at %llu\n", __func__, __LINE__, op, sectors, start_sector); @@ -158,7 +157,7 @@ static int ps3disk_submit_request_sg(struct ps3_storage_device *dev, if (res) { dev_err(&dev->sbd.core, "%s:%u: %s failed %d\n", __func__, __LINE__, op, res); - end_request(req, 0); + __blk_end_request_all(req, -EIO); return 0; } @@ -180,7 +179,7 @@ static int ps3disk_submit_flush_request(struct ps3_storage_device *dev, if (res) { dev_err(&dev->sbd.core, "%s:%u: sync cache failed 0x%llx\n", __func__, __LINE__, res); - end_request(req, 0); + __blk_end_request_all(req, -EIO); return 0; } @@ -195,7 +194,7 @@ static void ps3disk_do_request(struct ps3_storage_device *dev, dev_dbg(&dev->sbd.core, "%s:%u\n", __func__, __LINE__); - while ((req = elv_next_request(q))) { + while ((req = blk_fetch_request(q))) { if (blk_fs_request(req)) { if (ps3disk_submit_request_sg(dev, req)) break; @@ -205,7 +204,7 @@ static void ps3disk_do_request(struct ps3_storage_device *dev, break; } else { blk_dump_rq_flags(req, DEVICE_NAME " bad request"); - end_request(req, 0); + __blk_end_request_all(req, -EIO); continue; } } @@ -231,7 +230,6 @@ static irqreturn_t ps3disk_interrupt(int irq, void *data) struct request *req; int res, read, error; u64 tag, status; - unsigned long num_sectors; const char *op; res = lv1_storage_get_async_status(dev->sbd.dev_id, &tag, &status); @@ -261,11 +259,9 @@ static irqreturn_t ps3disk_interrupt(int irq, void *data) if (req->cmd_type == REQ_TYPE_LINUX_BLOCK && req->cmd[0] == REQ_LB_OP_FLUSH) { read = 0; - num_sectors = req->hard_cur_sectors; op = "flush"; } else { read = !rq_data_dir(req); - num_sectors = req->nr_sectors; op = read ? "read" : "write"; } if (status) { @@ -281,7 +277,7 @@ static irqreturn_t ps3disk_interrupt(int irq, void *data) } spin_lock(&priv->lock); - __blk_end_request(req, error, num_sectors << 9); + __blk_end_request_all(req, error); priv->req = NULL; ps3disk_do_request(dev, priv->queue); spin_unlock(&priv->lock); @@ -481,7 +477,7 @@ static int __devinit ps3disk_probe(struct ps3_system_bus_device *_dev) blk_queue_max_sectors(queue, dev->bounce_size >> 9); blk_queue_segment_boundary(queue, -1UL); blk_queue_dma_alignment(queue, dev->blk_size-1); - blk_queue_hardsect_size(queue, dev->blk_size); + blk_queue_logical_block_size(queue, dev->blk_size); blk_queue_ordered(queue, QUEUE_ORDERED_DRAIN_FLUSH, ps3disk_prepare_flush); diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c index 5861e33efe6..cbfd9c0aef0 100644 --- a/drivers/block/sunvdc.c +++ b/drivers/block/sunvdc.c @@ -212,11 +212,6 @@ static void vdc_end_special(struct vdc_port *port, struct vio_disk_desc *desc) vdc_finish(&port->vio, -err, WAITING_FOR_GEN_CMD); } -static void vdc_end_request(struct request *req, int error, int num_sectors) -{ - __blk_end_request(req, error, num_sectors << 9); -} - static void vdc_end_one(struct vdc_port *port, struct vio_dring_state *dr, unsigned int index) { @@ -239,7 +234,7 @@ static void vdc_end_one(struct vdc_port *port, struct vio_dring_state *dr, rqe->req = NULL; - vdc_end_request(req, (desc->status ? -EIO : 0), desc->size >> 9); + __blk_end_request(req, (desc->status ? -EIO : 0), desc->size); if (blk_queue_stopped(port->disk->queue)) blk_start_queue(port->disk->queue); @@ -421,7 +416,7 @@ static int __send_request(struct request *req) desc->slice = 0; } desc->status = ~0; - desc->offset = (req->sector << 9) / port->vdisk_block_size; + desc->offset = (blk_rq_pos(req) << 9) / port->vdisk_block_size; desc->size = len; desc->ncookies = err; @@ -446,14 +441,13 @@ out: static void do_vdc_request(struct request_queue *q) { while (1) { - struct request *req = elv_next_request(q); + struct request *req = blk_fetch_request(q); if (!req) break; - blkdev_dequeue_request(req); if (__send_request(req) < 0) - vdc_end_request(req, -EIO, req->hard_nr_sectors); + __blk_end_request_all(req, -EIO); } } diff --git a/drivers/block/swim.c b/drivers/block/swim.c index d22cc385693..cf7877fb8a7 100644 --- a/drivers/block/swim.c +++ b/drivers/block/swim.c @@ -514,7 +514,7 @@ static int floppy_read_sectors(struct floppy_state *fs, ret = swim_read_sector(fs, side, track, sector, buffer); if (try-- == 0) - return -1; + return -EIO; } while (ret != 512); buffer += ret; @@ -528,45 +528,31 @@ static void redo_fd_request(struct request_queue *q) struct request *req; struct floppy_state *fs; - while ((req = elv_next_request(q))) { + req = blk_fetch_request(q); + while (req) { + int err = -EIO; fs = req->rq_disk->private_data; - if (req->sector < 0 || req->sector >= fs->total_secs) { - end_request(req, 0); - continue; - } - if (req->current_nr_sectors == 0) { - end_request(req, 1); - continue; - } - if (!fs->disk_in) { - end_request(req, 0); - continue; - } - if (rq_data_dir(req) == WRITE) { - if (fs->write_protected) { - end_request(req, 0); - continue; - } - } + if (blk_rq_pos(req) >= fs->total_secs) + goto done; + if (!fs->disk_in) + goto done; + if (rq_data_dir(req) == WRITE && fs->write_protected) + goto done; + switch (rq_data_dir(req)) { case WRITE: /* NOT IMPLEMENTED */ - end_request(req, 0); break; case READ: - if (floppy_read_sectors(fs, req->sector, - req->current_nr_sectors, - req->buffer)) { - end_request(req, 0); - continue; - } - req->nr_sectors -= req->current_nr_sectors; - req->sector += req->current_nr_sectors; - req->buffer += req->current_nr_sectors * 512; - end_request(req, 1); + err = floppy_read_sectors(fs, blk_rq_pos(req), + blk_rq_cur_sectors(req), + req->buffer); break; } + done: + if (!__blk_end_request_cur(req, err)) + req = blk_fetch_request(q); } } diff --git a/drivers/block/swim3.c b/drivers/block/swim3.c index 612965307ba..80df93e3cdd 100644 --- a/drivers/block/swim3.c +++ b/drivers/block/swim3.c @@ -251,6 +251,20 @@ static int floppy_release(struct gendisk *disk, fmode_t mode); static int floppy_check_change(struct gendisk *disk); static int floppy_revalidate(struct gendisk *disk); +static bool swim3_end_request(int err, unsigned int nr_bytes) +{ + if (__blk_end_request(fd_req, err, nr_bytes)) + return true; + + fd_req = NULL; + return false; +} + +static bool swim3_end_request_cur(int err) +{ + return swim3_end_request(err, blk_rq_cur_bytes(fd_req)); +} + static void swim3_select(struct floppy_state *fs, int sel) { struct swim3 __iomem *sw = fs->swim3; @@ -310,25 +324,27 @@ static void start_request(struct floppy_state *fs) wake_up(&fs->wait); return; } - while (fs->state == idle && (req = elv_next_request(swim3_queue))) { + while (fs->state == idle) { + if (!fd_req) { + fd_req = blk_fetch_request(swim3_queue); + if (!fd_req) + break; + } + req = fd_req; #if 0 - printk("do_fd_req: dev=%s cmd=%d sec=%ld nr_sec=%ld buf=%p\n", + printk("do_fd_req: dev=%s cmd=%d sec=%ld nr_sec=%u buf=%p\n", req->rq_disk->disk_name, req->cmd, - (long)req->sector, req->nr_sectors, req->buffer); - printk(" errors=%d current_nr_sectors=%ld\n", - req->errors, req->current_nr_sectors); + (long)blk_rq_pos(req), blk_rq_sectors(req), req->buffer); + printk(" errors=%d current_nr_sectors=%u\n", + req->errors, blk_rq_cur_sectors(req)); #endif - if (req->sector < 0 || req->sector >= fs->total_secs) { - end_request(req, 0); - continue; - } - if (req->current_nr_sectors == 0) { - end_request(req, 1); + if (blk_rq_pos(req) >= fs->total_secs) { + swim3_end_request_cur(-EIO); continue; } if (fs->ejected) { - end_request(req, 0); + swim3_end_request_cur(-EIO); continue; } @@ -336,18 +352,19 @@ static void start_request(struct floppy_state *fs) if (fs->write_prot < 0) fs->write_prot = swim3_readbit(fs, WRITE_PROT); if (fs->write_prot) { - end_request(req, 0); + swim3_end_request_cur(-EIO); continue; } } - /* Do not remove the cast. req->sector is now a sector_t and - * can be 64 bits, but it will never go past 32 bits for this - * driver anyway, so we can safely cast it down and not have - * to do a 64/32 division + /* Do not remove the cast. blk_rq_pos(req) is now a + * sector_t and can be 64 bits, but it will never go + * past 32 bits for this driver anyway, so we can + * safely cast it down and not have to do a 64/32 + * division */ - fs->req_cyl = ((long)req->sector) / fs->secpercyl; - x = ((long)req->sector) % fs->secpercyl; + fs->req_cyl = ((long)blk_rq_pos(req)) / fs->secpercyl; + x = ((long)blk_rq_pos(req)) % fs->secpercyl; fs->head = x / fs->secpertrack; fs->req_sector = x % fs->secpertrack + 1; fd_req = req; @@ -424,7 +441,7 @@ static inline void setup_transfer(struct floppy_state *fs) struct dbdma_cmd *cp = fs->dma_cmd; struct dbdma_regs __iomem *dr = fs->dma; - if (fd_req->current_nr_sectors <= 0) { + if (blk_rq_cur_sectors(fd_req) <= 0) { printk(KERN_ERR "swim3: transfer 0 sectors?\n"); return; } @@ -432,8 +449,8 @@ static inline void setup_transfer(struct floppy_state *fs) n = 1; else { n = fs->secpertrack - fs->req_sector + 1; - if (n > fd_req->current_nr_sectors) - n = fd_req->current_nr_sectors; + if (n > blk_rq_cur_sectors(fd_req)) + n = blk_rq_cur_sectors(fd_req); } fs->scount = n; swim3_select(fs, fs->head? READ_DATA_1: READ_DATA_0); @@ -508,7 +525,7 @@ static void act(struct floppy_state *fs) case do_transfer: if (fs->cur_cyl != fs->req_cyl) { if (fs->retries > 5) { - end_request(fd_req, 0); + swim3_end_request_cur(-EIO); fs->state = idle; return; } @@ -540,7 +557,7 @@ static void scan_timeout(unsigned long data) out_8(&sw->intr_enable, 0); fs->cur_cyl = -1; if (fs->retries > 5) { - end_request(fd_req, 0); + swim3_end_request_cur(-EIO); fs->state = idle; start_request(fs); } else { @@ -559,7 +576,7 @@ static void seek_timeout(unsigned long data) out_8(&sw->select, RELAX); out_8(&sw->intr_enable, 0); printk(KERN_ERR "swim3: seek timeout\n"); - end_request(fd_req, 0); + swim3_end_request_cur(-EIO); fs->state = idle; start_request(fs); } @@ -583,7 +600,7 @@ static void settle_timeout(unsigned long data) return; } printk(KERN_ERR "swim3: seek settle timeout\n"); - end_request(fd_req, 0); + swim3_end_request_cur(-EIO); fs->state = idle; start_request(fs); } @@ -593,8 +610,6 @@ static void xfer_timeout(unsigned long data) struct floppy_state *fs = (struct floppy_state *) data; struct swim3 __iomem *sw = fs->swim3; struct dbdma_regs __iomem *dr = fs->dma; - struct dbdma_cmd *cp = fs->dma_cmd; - unsigned long s; int n; fs->timeout_pending = 0; @@ -605,17 +620,10 @@ static void xfer_timeout(unsigned long data) out_8(&sw->intr_enable, 0); out_8(&sw->control_bic, WRITE_SECTORS | DO_ACTION); out_8(&sw->select, RELAX); - if (rq_data_dir(fd_req) == WRITE) - ++cp; - if (ld_le16(&cp->xfer_status) != 0) - s = fs->scount - ((ld_le16(&cp->res_count) + 511) >> 9); - else - s = 0; - fd_req->sector += s; - fd_req->current_nr_sectors -= s; printk(KERN_ERR "swim3: timeout %sing sector %ld\n", - (rq_data_dir(fd_req)==WRITE? "writ": "read"), (long)fd_req->sector); - end_request(fd_req, 0); + (rq_data_dir(fd_req)==WRITE? "writ": "read"), + (long)blk_rq_pos(fd_req)); + swim3_end_request_cur(-EIO); fs->state = idle; start_request(fs); } @@ -646,7 +654,7 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id) printk(KERN_ERR "swim3: seen sector but cyl=ff?\n"); fs->cur_cyl = -1; if (fs->retries > 5) { - end_request(fd_req, 0); + swim3_end_request_cur(-EIO); fs->state = idle; start_request(fs); } else { @@ -719,9 +727,7 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id) if (intr & ERROR_INTR) { n = fs->scount - 1 - resid / 512; if (n > 0) { - fd_req->sector += n; - fd_req->current_nr_sectors -= n; - fd_req->buffer += n * 512; + blk_update_request(fd_req, 0, n << 9); fs->req_sector += n; } if (fs->retries < 5) { @@ -730,8 +736,8 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id) } else { printk("swim3: error %sing block %ld (err=%x)\n", rq_data_dir(fd_req) == WRITE? "writ": "read", - (long)fd_req->sector, err); - end_request(fd_req, 0); + (long)blk_rq_pos(fd_req), err); + swim3_end_request_cur(-EIO); fs->state = idle; } } else { @@ -740,18 +746,12 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id) printk(KERN_ERR "swim3: fd dma: stat=%x resid=%d\n", stat, resid); printk(KERN_ERR " state=%d, dir=%x, intr=%x, err=%x\n", fs->state, rq_data_dir(fd_req), intr, err); - end_request(fd_req, 0); + swim3_end_request_cur(-EIO); fs->state = idle; start_request(fs); break; } - fd_req->sector += fs->scount; - fd_req->current_nr_sectors -= fs->scount; - fd_req->buffer += fs->scount * 512; - if (fd_req->current_nr_sectors <= 0) { - end_request(fd_req, 1); - fs->state = idle; - } else { + if (swim3_end_request(0, fs->scount << 9)) { fs->req_sector += fs->scount; if (fs->req_sector > fs->secpertrack) { fs->req_sector -= fs->secpertrack; @@ -761,7 +761,8 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id) } } act(fs); - } + } else + fs->state = idle; } if (fs->state == idle) start_request(fs); diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c index ff0448e4bf0..da403b6a7f4 100644 --- a/drivers/block/sx8.c +++ b/drivers/block/sx8.c @@ -749,8 +749,7 @@ static inline void carm_end_request_queued(struct carm_host *host, struct request *req = crq->rq; int rc; - rc = __blk_end_request(req, error, blk_rq_bytes(req)); - assert(rc == 0); + __blk_end_request_all(req, error); rc = carm_put_request(host, crq); assert(rc == 0); @@ -811,12 +810,10 @@ static void carm_oob_rq_fn(struct request_queue *q) while (1) { DPRINTK("get req\n"); - rq = elv_next_request(q); + rq = blk_fetch_request(q); if (!rq) break; - blkdev_dequeue_request(rq); - crq = rq->special; assert(crq != NULL); assert(crq->rq == rq); @@ -847,7 +844,7 @@ static void carm_rq_fn(struct request_queue *q) queue_one_request: VPRINTK("get req\n"); - rq = elv_next_request(q); + rq = blk_peek_request(q); if (!rq) return; @@ -858,7 +855,7 @@ queue_one_request: } crq->rq = rq; - blkdev_dequeue_request(rq); + blk_start_request(rq); if (rq_data_dir(rq) == WRITE) { writing = 1; @@ -904,10 +901,10 @@ queue_one_request: msg->sg_count = n_elem; msg->sg_type = SGT_32BIT; msg->handle = cpu_to_le32(TAG_ENCODE(crq->tag)); - msg->lba = cpu_to_le32(rq->sector & 0xffffffff); - tmp = (rq->sector >> 16) >> 16; + msg->lba = cpu_to_le32(blk_rq_pos(rq) & 0xffffffff); + tmp = (blk_rq_pos(rq) >> 16) >> 16; msg->lba_high = cpu_to_le16( (u16) tmp ); - msg->lba_count = cpu_to_le16(rq->nr_sectors); + msg->lba_count = cpu_to_le16(blk_rq_sectors(rq)); msg_size = sizeof(struct carm_msg_rw) - sizeof(msg->sg); for (i = 0; i < n_elem; i++) { diff --git a/drivers/block/ub.c b/drivers/block/ub.c index 689cd27ac89..cc54473b8e7 100644 --- a/drivers/block/ub.c +++ b/drivers/block/ub.c @@ -360,8 +360,7 @@ static void ub_cmd_build_block(struct ub_dev *sc, struct ub_lun *lun, static void ub_cmd_build_packet(struct ub_dev *sc, struct ub_lun *lun, struct ub_scsi_cmd *cmd, struct ub_request *urq); static void ub_rw_cmd_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd); -static void ub_end_rq(struct request *rq, unsigned int status, - unsigned int cmd_len); +static void ub_end_rq(struct request *rq, unsigned int status); static int ub_rw_cmd_retry(struct ub_dev *sc, struct ub_lun *lun, struct ub_request *urq, struct ub_scsi_cmd *cmd); static int ub_submit_scsi(struct ub_dev *sc, struct ub_scsi_cmd *cmd); @@ -627,7 +626,7 @@ static void ub_request_fn(struct request_queue *q) struct ub_lun *lun = q->queuedata; struct request *rq; - while ((rq = elv_next_request(q)) != NULL) { + while ((rq = blk_peek_request(q)) != NULL) { if (ub_request_fn_1(lun, rq) != 0) { blk_stop_queue(q); break; @@ -643,14 +642,14 @@ static int ub_request_fn_1(struct ub_lun *lun, struct request *rq) int n_elem; if (atomic_read(&sc->poison)) { - blkdev_dequeue_request(rq); - ub_end_rq(rq, DID_NO_CONNECT << 16, blk_rq_bytes(rq)); + blk_start_request(rq); + ub_end_rq(rq, DID_NO_CONNECT << 16); return 0; } if (lun->changed && !blk_pc_request(rq)) { - blkdev_dequeue_request(rq); - ub_end_rq(rq, SAM_STAT_CHECK_CONDITION, blk_rq_bytes(rq)); + blk_start_request(rq); + ub_end_rq(rq, SAM_STAT_CHECK_CONDITION); return 0; } @@ -660,7 +659,7 @@ static int ub_request_fn_1(struct ub_lun *lun, struct request *rq) return -1; memset(cmd, 0, sizeof(struct ub_scsi_cmd)); - blkdev_dequeue_request(rq); + blk_start_request(rq); urq = &lun->urq; memset(urq, 0, sizeof(struct ub_request)); @@ -702,7 +701,7 @@ static int ub_request_fn_1(struct ub_lun *lun, struct request *rq) drop: ub_put_cmd(lun, cmd); - ub_end_rq(rq, DID_ERROR << 16, blk_rq_bytes(rq)); + ub_end_rq(rq, DID_ERROR << 16); return 0; } @@ -723,11 +722,11 @@ static void ub_cmd_build_block(struct ub_dev *sc, struct ub_lun *lun, /* * build the command * - * The call to blk_queue_hardsect_size() guarantees that request + * The call to blk_queue_logical_block_size() guarantees that request * is aligned, but it is given in terms of 512 byte units, always. */ - block = rq->sector >> lun->capacity.bshift; - nblks = rq->nr_sectors >> lun->capacity.bshift; + block = blk_rq_pos(rq) >> lun->capacity.bshift; + nblks = blk_rq_sectors(rq) >> lun->capacity.bshift; cmd->cdb[0] = (cmd->dir == UB_DIR_READ)? READ_10: WRITE_10; /* 10-byte uses 4 bytes of LBA: 2147483648KB, 2097152MB, 2048GB */ @@ -739,7 +738,7 @@ static void ub_cmd_build_block(struct ub_dev *sc, struct ub_lun *lun, cmd->cdb[8] = nblks; cmd->cdb_len = 10; - cmd->len = rq->nr_sectors * 512; + cmd->len = blk_rq_bytes(rq); } static void ub_cmd_build_packet(struct ub_dev *sc, struct ub_lun *lun, @@ -747,7 +746,7 @@ static void ub_cmd_build_packet(struct ub_dev *sc, struct ub_lun *lun, { struct request *rq = urq->rq; - if (rq->data_len == 0) { + if (blk_rq_bytes(rq) == 0) { cmd->dir = UB_DIR_NONE; } else { if (rq_data_dir(rq) == WRITE) @@ -762,7 +761,7 @@ static void ub_cmd_build_packet(struct ub_dev *sc, struct ub_lun *lun, memcpy(&cmd->cdb, rq->cmd, rq->cmd_len); cmd->cdb_len = rq->cmd_len; - cmd->len = rq->data_len; + cmd->len = blk_rq_bytes(rq); /* * To reapply this to every URB is not as incorrect as it looks. @@ -777,16 +776,15 @@ static void ub_rw_cmd_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd) struct ub_request *urq = cmd->back; struct request *rq; unsigned int scsi_status; - unsigned int cmd_len; rq = urq->rq; if (cmd->error == 0) { if (blk_pc_request(rq)) { - if (cmd->act_len >= rq->data_len) - rq->data_len = 0; + if (cmd->act_len >= rq->resid_len) + rq->resid_len = 0; else - rq->data_len -= cmd->act_len; + rq->resid_len -= cmd->act_len; scsi_status = 0; } else { if (cmd->act_len != cmd->len) { @@ -818,17 +816,14 @@ static void ub_rw_cmd_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd) urq->rq = NULL; - cmd_len = cmd->len; ub_put_cmd(lun, cmd); - ub_end_rq(rq, scsi_status, cmd_len); + ub_end_rq(rq, scsi_status); blk_start_queue(lun->disk->queue); } -static void ub_end_rq(struct request *rq, unsigned int scsi_status, - unsigned int cmd_len) +static void ub_end_rq(struct request *rq, unsigned int scsi_status) { int error; - long rqlen; if (scsi_status == 0) { error = 0; @@ -836,12 +831,7 @@ static void ub_end_rq(struct request *rq, unsigned int scsi_status, error = -EIO; rq->errors = scsi_status; } - rqlen = blk_rq_bytes(rq); /* Oddly enough, this is the residue. */ - if (__blk_end_request(rq, error, cmd_len)) { - printk(KERN_WARNING DRV_NAME - ": __blk_end_request blew, %s-cmd total %u rqlen %ld\n", - blk_pc_request(rq)? "pc": "fs", cmd_len, rqlen); - } + __blk_end_request_all(rq, error); } static int ub_rw_cmd_retry(struct ub_dev *sc, struct ub_lun *lun, @@ -1759,7 +1749,7 @@ static int ub_bd_revalidate(struct gendisk *disk) ub_revalidate(lun->udev, lun); /* XXX Support sector size switching like in sr.c */ - blk_queue_hardsect_size(disk->queue, lun->capacity.bsize); + blk_queue_logical_block_size(disk->queue, lun->capacity.bsize); set_capacity(disk, lun->capacity.nsec); // set_disk_ro(sdkp->disk, lun->readonly); @@ -2334,7 +2324,7 @@ static int ub_probe_lun(struct ub_dev *sc, int lnum) blk_queue_max_phys_segments(q, UB_MAX_REQ_SG); blk_queue_segment_boundary(q, 0xffffffff); /* Dubious. */ blk_queue_max_sectors(q, UB_MAX_SECTORS); - blk_queue_hardsect_size(q, lun->capacity.bsize); + blk_queue_logical_block_size(q, lun->capacity.bsize); lun->disk = disk; q->queuedata = lun; diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c index ecccf65dce2..390d69bb7c4 100644 --- a/drivers/block/viodasd.c +++ b/drivers/block/viodasd.c @@ -252,7 +252,7 @@ static int send_request(struct request *req) struct viodasd_device *d; unsigned long flags; - start = (u64)req->sector << 9; + start = (u64)blk_rq_pos(req) << 9; if (rq_data_dir(req) == READ) { direction = DMA_FROM_DEVICE; @@ -361,19 +361,17 @@ static void do_viodasd_request(struct request_queue *q) * back later. */ while (num_req_outstanding < VIOMAXREQ) { - req = elv_next_request(q); + req = blk_fetch_request(q); if (req == NULL) return; - /* dequeue the current request from the queue */ - blkdev_dequeue_request(req); /* check that request contains a valid command */ if (!blk_fs_request(req)) { - viodasd_end_request(req, -EIO, req->hard_nr_sectors); + viodasd_end_request(req, -EIO, blk_rq_sectors(req)); continue; } /* Try sending the request */ if (send_request(req) != 0) - viodasd_end_request(req, -EIO, req->hard_nr_sectors); + viodasd_end_request(req, -EIO, blk_rq_sectors(req)); } } @@ -590,7 +588,7 @@ static int viodasd_handle_read_write(struct vioblocklpevent *bevent) err = vio_lookup_rc(viodasd_err_table, bevent->sub_result); printk(VIOD_KERN_WARNING "read/write error %d:0x%04x (%s)\n", event->xRc, bevent->sub_result, err->msg); - num_sect = req->hard_nr_sectors; + num_sect = blk_rq_sectors(req); } qlock = req->q->queue_lock; spin_lock_irqsave(qlock, irq_flags); diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 5d34764c8a8..c0facaa55cf 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -37,6 +37,7 @@ struct virtblk_req struct list_head list; struct request *req; struct virtio_blk_outhdr out_hdr; + struct virtio_scsi_inhdr in_hdr; u8 status; }; @@ -50,6 +51,7 @@ static void blk_done(struct virtqueue *vq) spin_lock_irqsave(&vblk->lock, flags); while ((vbr = vblk->vq->vq_ops->get_buf(vblk->vq, &len)) != NULL) { int error; + switch (vbr->status) { case VIRTIO_BLK_S_OK: error = 0; @@ -62,7 +64,13 @@ static void blk_done(struct virtqueue *vq) break; } - __blk_end_request(vbr->req, error, blk_rq_bytes(vbr->req)); + if (blk_pc_request(vbr->req)) { + vbr->req->resid_len = vbr->in_hdr.residual; + vbr->req->sense_len = vbr->in_hdr.sense_len; + vbr->req->errors = vbr->in_hdr.errors; + } + + __blk_end_request_all(vbr->req, error); list_del(&vbr->list); mempool_free(vbr, vblk->pool); } @@ -74,7 +82,7 @@ static void blk_done(struct virtqueue *vq) static bool do_req(struct request_queue *q, struct virtio_blk *vblk, struct request *req) { - unsigned long num, out, in; + unsigned long num, out = 0, in = 0; struct virtblk_req *vbr; vbr = mempool_alloc(vblk->pool, GFP_ATOMIC); @@ -85,7 +93,7 @@ static bool do_req(struct request_queue *q, struct virtio_blk *vblk, vbr->req = req; if (blk_fs_request(vbr->req)) { vbr->out_hdr.type = 0; - vbr->out_hdr.sector = vbr->req->sector; + vbr->out_hdr.sector = blk_rq_pos(vbr->req); vbr->out_hdr.ioprio = req_get_ioprio(vbr->req); } else if (blk_pc_request(vbr->req)) { vbr->out_hdr.type = VIRTIO_BLK_T_SCSI_CMD; @@ -99,18 +107,36 @@ static bool do_req(struct request_queue *q, struct virtio_blk *vblk, if (blk_barrier_rq(vbr->req)) vbr->out_hdr.type |= VIRTIO_BLK_T_BARRIER; - sg_set_buf(&vblk->sg[0], &vbr->out_hdr, sizeof(vbr->out_hdr)); - num = blk_rq_map_sg(q, vbr->req, vblk->sg+1); - sg_set_buf(&vblk->sg[num+1], &vbr->status, sizeof(vbr->status)); + sg_set_buf(&vblk->sg[out++], &vbr->out_hdr, sizeof(vbr->out_hdr)); - if (rq_data_dir(vbr->req) == WRITE) { - vbr->out_hdr.type |= VIRTIO_BLK_T_OUT; - out = 1 + num; - in = 1; - } else { - vbr->out_hdr.type |= VIRTIO_BLK_T_IN; - out = 1; - in = 1 + num; + /* + * If this is a packet command we need a couple of additional headers. + * Behind the normal outhdr we put a segment with the scsi command + * block, and before the normal inhdr we put the sense data and the + * inhdr with additional status information before the normal inhdr. + */ + if (blk_pc_request(vbr->req)) + sg_set_buf(&vblk->sg[out++], vbr->req->cmd, vbr->req->cmd_len); + + num = blk_rq_map_sg(q, vbr->req, vblk->sg + out); + + if (blk_pc_request(vbr->req)) { + sg_set_buf(&vblk->sg[num + out + in++], vbr->req->sense, 96); + sg_set_buf(&vblk->sg[num + out + in++], &vbr->in_hdr, + sizeof(vbr->in_hdr)); + } + + sg_set_buf(&vblk->sg[num + out + in++], &vbr->status, + sizeof(vbr->status)); + + if (num) { + if (rq_data_dir(vbr->req) == WRITE) { + vbr->out_hdr.type |= VIRTIO_BLK_T_OUT; + out += num; + } else { + vbr->out_hdr.type |= VIRTIO_BLK_T_IN; + in += num; + } } if (vblk->vq->vq_ops->add_buf(vblk->vq, vblk->sg, out, in, vbr)) { @@ -124,12 +150,11 @@ static bool do_req(struct request_queue *q, struct virtio_blk *vblk, static void do_virtblk_request(struct request_queue *q) { - struct virtio_blk *vblk = NULL; + struct virtio_blk *vblk = q->queuedata; struct request *req; unsigned int issued = 0; - while ((req = elv_next_request(q)) != NULL) { - vblk = req->rq_disk->private_data; + while ((req = blk_peek_request(q)) != NULL) { BUG_ON(req->nr_phys_segments + 2 > vblk->sg_elems); /* If this request fails, stop queue and wait for something to @@ -138,7 +163,7 @@ static void do_virtblk_request(struct request_queue *q) blk_stop_queue(q); break; } - blkdev_dequeue_request(req); + blk_start_request(req); issued++; } @@ -146,12 +171,51 @@ static void do_virtblk_request(struct request_queue *q) vblk->vq->vq_ops->kick(vblk->vq); } +/* return ATA identify data + */ +static int virtblk_identify(struct gendisk *disk, void *argp) +{ + struct virtio_blk *vblk = disk->private_data; + void *opaque; + int err = -ENOMEM; + + opaque = kmalloc(VIRTIO_BLK_ID_BYTES, GFP_KERNEL); + if (!opaque) + goto out; + + err = virtio_config_buf(vblk->vdev, VIRTIO_BLK_F_IDENTIFY, + offsetof(struct virtio_blk_config, identify), opaque, + VIRTIO_BLK_ID_BYTES); + + if (err) + goto out_kfree; + + if (copy_to_user(argp, opaque, VIRTIO_BLK_ID_BYTES)) + err = -EFAULT; + +out_kfree: + kfree(opaque); +out: + return err; +} + static int virtblk_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd, unsigned long data) { - return scsi_cmd_ioctl(bdev->bd_disk->queue, - bdev->bd_disk, mode, cmd, - (void __user *)data); + struct gendisk *disk = bdev->bd_disk; + struct virtio_blk *vblk = disk->private_data; + void __user *argp = (void __user *)data; + + if (cmd == HDIO_GET_IDENTITY) + return virtblk_identify(disk, argp); + + /* + * Only allow the generic SCSI ioctls if the host can support it. + */ + if (!virtio_has_feature(vblk->vdev, VIRTIO_BLK_F_SCSI)) + return -ENOIOCTLCMD; + + return scsi_cmd_ioctl(disk->queue, disk, mode, cmd, argp); } /* We provide getgeo only to please some old bootloader/partitioning tools */ @@ -249,6 +313,7 @@ static int virtblk_probe(struct virtio_device *vdev) goto out_put_disk; } + vblk->disk->queue->queuedata = vblk; queue_flag_set_unlocked(QUEUE_FLAG_VIRT, vblk->disk->queue); if (index < 26) { @@ -313,7 +378,7 @@ static int virtblk_probe(struct virtio_device *vdev) offsetof(struct virtio_blk_config, blk_size), &blk_size); if (!err) - blk_queue_hardsect_size(vblk->disk->queue, blk_size); + blk_queue_logical_block_size(vblk->disk->queue, blk_size); add_disk(vblk->disk); return 0; @@ -356,6 +421,7 @@ static struct virtio_device_id id_table[] = { static unsigned int features[] = { VIRTIO_BLK_F_BARRIER, VIRTIO_BLK_F_SEG_MAX, VIRTIO_BLK_F_SIZE_MAX, VIRTIO_BLK_F_GEOMETRY, VIRTIO_BLK_F_RO, VIRTIO_BLK_F_BLK_SIZE, + VIRTIO_BLK_F_SCSI, VIRTIO_BLK_F_IDENTIFY }; static struct virtio_driver virtio_blk = { diff --git a/drivers/block/xd.c b/drivers/block/xd.c index 64b496fce98..ce242921992 100644 --- a/drivers/block/xd.c +++ b/drivers/block/xd.c @@ -305,30 +305,25 @@ static void do_xd_request (struct request_queue * q) if (xdc_busy) return; - while ((req = elv_next_request(q)) != NULL) { - unsigned block = req->sector; - unsigned count = req->nr_sectors; - int rw = rq_data_dir(req); + req = blk_fetch_request(q); + while (req) { + unsigned block = blk_rq_pos(req); + unsigned count = blk_rq_cur_sectors(req); XD_INFO *disk = req->rq_disk->private_data; - int res = 0; + int res = -EIO; int retry; - if (!blk_fs_request(req)) { - end_request(req, 0); - continue; - } - if (block + count > get_capacity(req->rq_disk)) { - end_request(req, 0); - continue; - } - if (rw != READ && rw != WRITE) { - printk("do_xd_request: unknown request\n"); - end_request(req, 0); - continue; - } + if (!blk_fs_request(req)) + goto done; + if (block + count > get_capacity(req->rq_disk)) + goto done; for (retry = 0; (retry < XD_RETRIES) && !res; retry++) - res = xd_readwrite(rw, disk, req->buffer, block, count); - end_request(req, res); /* wrap up, 0 = fail, 1 = success */ + res = xd_readwrite(rq_data_dir(req), disk, req->buffer, + block, count); + done: + /* wrap up, 0 = success, -errno = fail */ + if (!__blk_end_request_cur(req, res)) + req = blk_fetch_request(q); } } @@ -418,7 +413,7 @@ static int xd_readwrite (u_char operation,XD_INFO *p,char *buffer,u_int block,u_ printk("xd%c: %s timeout, recalibrating drive\n",'a'+drive,(operation == READ ? "read" : "write")); xd_recalibrate(drive); spin_lock_irq(&xd_lock); - return (0); + return -EIO; case 2: if (sense[0] & 0x30) { printk("xd%c: %s - ",'a'+drive,(operation == READ ? "reading" : "writing")); @@ -439,7 +434,7 @@ static int xd_readwrite (u_char operation,XD_INFO *p,char *buffer,u_int block,u_ else printk(" - no valid disk address\n"); spin_lock_irq(&xd_lock); - return (0); + return -EIO; } if (xd_dma_buffer) for (i=0; i < (temp * 0x200); i++) @@ -448,7 +443,7 @@ static int xd_readwrite (u_char operation,XD_INFO *p,char *buffer,u_int block,u_ count -= temp, buffer += temp * 0x200, block += temp; } spin_lock_irq(&xd_lock); - return (1); + return 0; } /* xd_recalibrate: recalibrate a given drive and reset controller if necessary */ diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index a6cbf7b808e..c1996829d5e 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -122,7 +122,7 @@ static DEFINE_SPINLOCK(blkif_io_lock); static int get_id_from_freelist(struct blkfront_info *info) { unsigned long free = info->shadow_free; - BUG_ON(free > BLK_RING_SIZE); + BUG_ON(free >= BLK_RING_SIZE); info->shadow_free = info->shadow[free].req.id; info->shadow[free].req.id = 0x0fffffee; /* debug */ return free; @@ -231,7 +231,7 @@ static int blkif_queue_request(struct request *req) info->shadow[id].request = (unsigned long)req; ring_req->id = id; - ring_req->sector_number = (blkif_sector_t)req->sector; + ring_req->sector_number = (blkif_sector_t)blk_rq_pos(req); ring_req->handle = info->handle; ring_req->operation = rq_data_dir(req) ? @@ -299,25 +299,25 @@ static void do_blkif_request(struct request_queue *rq) queued = 0; - while ((req = elv_next_request(rq)) != NULL) { + while ((req = blk_peek_request(rq)) != NULL) { info = req->rq_disk->private_data; - if (!blk_fs_request(req)) { - end_request(req, 0); - continue; - } if (RING_FULL(&info->ring)) goto wait; - pr_debug("do_blk_req %p: cmd %p, sec %lx, " - "(%u/%li) buffer:%p [%s]\n", - req, req->cmd, (unsigned long)req->sector, - req->current_nr_sectors, - req->nr_sectors, req->buffer, - rq_data_dir(req) ? "write" : "read"); + blk_start_request(req); + if (!blk_fs_request(req)) { + __blk_end_request_all(req, -EIO); + continue; + } + + pr_debug("do_blk_req %p: cmd %p, sec %lx, " + "(%u/%u) buffer:%p [%s]\n", + req, req->cmd, (unsigned long)blk_rq_pos(req), + blk_rq_cur_sectors(req), blk_rq_sectors(req), + req->buffer, rq_data_dir(req) ? "write" : "read"); - blkdev_dequeue_request(req); if (blkif_queue_request(req)) { blk_requeue_request(rq, req); wait: @@ -344,7 +344,7 @@ static int xlvbd_init_blk_queue(struct gendisk *gd, u16 sector_size) queue_flag_set_unlocked(QUEUE_FLAG_VIRT, rq); /* Hard sector size and max sectors impersonate the equiv. hardware. */ - blk_queue_hardsect_size(rq, sector_size); + blk_queue_logical_block_size(rq, sector_size); blk_queue_max_sectors(rq, 512); /* Each segment in a request is up to an aligned page in size. */ @@ -551,7 +551,6 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id) for (i = info->ring.rsp_cons; i != rp; i++) { unsigned long id; - int ret; bret = RING_GET_RESPONSE(&info->ring, i); id = bret->id; @@ -578,8 +577,7 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id) dev_dbg(&info->xbdev->dev, "Bad return from blkdev data " "request: %x\n", bret->status); - ret = __blk_end_request(req, error, blk_rq_bytes(req)); - BUG_ON(ret); + __blk_end_request_all(req, error); break; default: BUG(); diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c index 4aecf5dc6a9..f08491a3a81 100644 --- a/drivers/block/xsysace.c +++ b/drivers/block/xsysace.c @@ -463,10 +463,11 @@ struct request *ace_get_next_request(struct request_queue * q) { struct request *req; - while ((req = elv_next_request(q)) != NULL) { + while ((req = blk_peek_request(q)) != NULL) { if (blk_fs_request(req)) break; - end_request(req, 0); + blk_start_request(req); + __blk_end_request_all(req, -EIO); } return req; } @@ -492,9 +493,13 @@ static void ace_fsm_dostate(struct ace_device *ace) set_capacity(ace->gd, 0); dev_info(ace->dev, "No CF in slot\n"); - /* Drop all pending requests */ - while ((req = elv_next_request(ace->queue)) != NULL) - end_request(req, 0); + /* Drop all in-flight and pending requests */ + if (ace->req) { + __blk_end_request_all(ace->req, -EIO); + ace->req = NULL; + } + while ((req = blk_fetch_request(ace->queue)) != NULL) + __blk_end_request_all(req, -EIO); /* Drop back to IDLE state and notify waiters */ ace->fsm_state = ACE_FSM_STATE_IDLE; @@ -642,19 +647,21 @@ static void ace_fsm_dostate(struct ace_device *ace) ace->fsm_state = ACE_FSM_STATE_IDLE; break; } + blk_start_request(req); /* Okay, it's a data request, set it up for transfer */ dev_dbg(ace->dev, - "request: sec=%llx hcnt=%lx, ccnt=%x, dir=%i\n", - (unsigned long long) req->sector, req->hard_nr_sectors, - req->current_nr_sectors, rq_data_dir(req)); + "request: sec=%llx hcnt=%x, ccnt=%x, dir=%i\n", + (unsigned long long)blk_rq_pos(req), + blk_rq_sectors(req), blk_rq_cur_sectors(req), + rq_data_dir(req)); ace->req = req; ace->data_ptr = req->buffer; - ace->data_count = req->current_nr_sectors * ACE_BUF_PER_SECTOR; - ace_out32(ace, ACE_MPULBA, req->sector & 0x0FFFFFFF); + ace->data_count = blk_rq_cur_sectors(req) * ACE_BUF_PER_SECTOR; + ace_out32(ace, ACE_MPULBA, blk_rq_pos(req) & 0x0FFFFFFF); - count = req->hard_nr_sectors; + count = blk_rq_sectors(req); if (rq_data_dir(req)) { /* Kick off write request */ dev_dbg(ace->dev, "write data\n"); @@ -688,7 +695,7 @@ static void ace_fsm_dostate(struct ace_device *ace) dev_dbg(ace->dev, "CFBSY set; t=%i iter=%i c=%i dc=%i irq=%i\n", ace->fsm_task, ace->fsm_iter_num, - ace->req->current_nr_sectors * 16, + blk_rq_cur_sectors(ace->req) * 16, ace->data_count, ace->in_irq); ace_fsm_yield(ace); /* need to poll CFBSY bit */ break; @@ -697,7 +704,7 @@ static void ace_fsm_dostate(struct ace_device *ace) dev_dbg(ace->dev, "DATABUF not set; t=%i iter=%i c=%i dc=%i irq=%i\n", ace->fsm_task, ace->fsm_iter_num, - ace->req->current_nr_sectors * 16, + blk_rq_cur_sectors(ace->req) * 16, ace->data_count, ace->in_irq); ace_fsm_yieldirq(ace); break; @@ -717,14 +724,13 @@ static void ace_fsm_dostate(struct ace_device *ace) } /* bio finished; is there another one? */ - if (__blk_end_request(ace->req, 0, - blk_rq_cur_bytes(ace->req))) { - /* dev_dbg(ace->dev, "next block; h=%li c=%i\n", - * ace->req->hard_nr_sectors, - * ace->req->current_nr_sectors); + if (__blk_end_request_cur(ace->req, 0)) { + /* dev_dbg(ace->dev, "next block; h=%u c=%u\n", + * blk_rq_sectors(ace->req), + * blk_rq_cur_sectors(ace->req)); */ ace->data_ptr = ace->req->buffer; - ace->data_count = ace->req->current_nr_sectors * 16; + ace->data_count = blk_rq_cur_sectors(ace->req) * 16; ace_fsm_yieldirq(ace); break; } @@ -978,7 +984,7 @@ static int __devinit ace_setup(struct ace_device *ace) ace->queue = blk_init_queue(ace_request, &ace->lock); if (ace->queue == NULL) goto err_blk_initq; - blk_queue_hardsect_size(ace->queue, 512); + blk_queue_logical_block_size(ace->queue, 512); /* * Allocate and initialize GD structure diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c index 80754cdd311..4575171e5be 100644 --- a/drivers/block/z2ram.c +++ b/drivers/block/z2ram.c @@ -70,15 +70,18 @@ static struct gendisk *z2ram_gendisk; static void do_z2_request(struct request_queue *q) { struct request *req; - while ((req = elv_next_request(q)) != NULL) { - unsigned long start = req->sector << 9; - unsigned long len = req->current_nr_sectors << 9; + + req = blk_fetch_request(q); + while (req) { + unsigned long start = blk_rq_pos(req) << 9; + unsigned long len = blk_rq_cur_bytes(req); + int err = 0; if (start + len > z2ram_size) { printk( KERN_ERR DEVICE_NAME ": bad access: block=%lu, count=%u\n", - req->sector, req->current_nr_sectors); - end_request(req, 0); - continue; + blk_rq_pos(req), blk_rq_cur_sectors(req)); + err = -EIO; + goto done; } while (len) { unsigned long addr = start & Z2RAM_CHUNKMASK; @@ -93,7 +96,9 @@ static void do_z2_request(struct request_queue *q) start += size; len -= size; } - end_request(req, 1); + done: + if (!__blk_end_request_cur(req, err)) + req = blk_fetch_request(q); } } diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c index af761dc434f..4895f0e0532 100644 --- a/drivers/bluetooth/hci_ldisc.c +++ b/drivers/bluetooth/hci_ldisc.c @@ -277,8 +277,8 @@ static int hci_uart_tty_open(struct tty_struct *tty) /* FIXME: why is this needed. Note don't use ldisc_ref here as the open path is before the ldisc is referencable */ - if (tty->ldisc.ops->flush_buffer) - tty->ldisc.ops->flush_buffer(tty); + if (tty->ldisc->ops->flush_buffer) + tty->ldisc->ops->flush_buffer(tty); tty_driver_flush_buffer(tty); return 0; @@ -463,7 +463,6 @@ static int hci_uart_tty_ioctl(struct tty_struct *tty, struct file * file, clear_bit(HCI_UART_PROTO_SET, &hu->flags); return err; } - tty->low_latency = 1; } else return -EBUSY; break; diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index cceace61ef2..71d1b9bab70 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -2101,8 +2101,8 @@ static int cdrom_read_cdda_bpc(struct cdrom_device_info *cdi, __u8 __user *ubuf, nr = nframes; if (cdi->cdda_method == CDDA_BPC_SINGLE) nr = 1; - if (nr * CD_FRAMESIZE_RAW > (q->max_sectors << 9)) - nr = (q->max_sectors << 9) / CD_FRAMESIZE_RAW; + if (nr * CD_FRAMESIZE_RAW > (queue_max_sectors(q) << 9)) + nr = (queue_max_sectors(q) << 9) / CD_FRAMESIZE_RAW; len = nr * CD_FRAMESIZE_RAW; diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c index 2eecb779437..b5621f27c4b 100644 --- a/drivers/cdrom/gdrom.c +++ b/drivers/cdrom/gdrom.c @@ -584,8 +584,8 @@ static void gdrom_readdisk_dma(struct work_struct *work) list_for_each_safe(elem, next, &gdrom_deferred) { req = list_entry(elem, struct request, queuelist); spin_unlock(&gdrom_lock); - block = req->sector/GD_TO_BLK + GD_SESSION_OFFSET; - block_cnt = req->nr_sectors/GD_TO_BLK; + block = blk_rq_pos(req)/GD_TO_BLK + GD_SESSION_OFFSET; + block_cnt = blk_rq_sectors(req)/GD_TO_BLK; ctrl_outl(PHYSADDR(req->buffer), GDROM_DMA_STARTADDR_REG); ctrl_outl(block_cnt * GDROM_HARD_SECTOR, GDROM_DMA_LENGTH_REG); ctrl_outl(1, GDROM_DMA_DIRECTION_REG); @@ -632,39 +632,35 @@ static void gdrom_readdisk_dma(struct work_struct *work) * before handling ending the request */ spin_lock(&gdrom_lock); list_del_init(&req->queuelist); - __blk_end_request(req, err, blk_rq_bytes(req)); + __blk_end_request_all(req, err); } spin_unlock(&gdrom_lock); kfree(read_command); } -static void gdrom_request_handler_dma(struct request *req) -{ - /* dequeue, add to list of deferred work - * and then schedule workqueue */ - blkdev_dequeue_request(req); - list_add_tail(&req->queuelist, &gdrom_deferred); - schedule_work(&work); -} - static void gdrom_request(struct request_queue *rq) { struct request *req; - while ((req = elv_next_request(rq)) != NULL) { + while ((req = blk_fetch_request(rq)) != NULL) { if (!blk_fs_request(req)) { printk(KERN_DEBUG "GDROM: Non-fs request ignored\n"); - end_request(req, 0); + __blk_end_request_all(req, -EIO); + continue; } if (rq_data_dir(req) != READ) { printk(KERN_NOTICE "GDROM: Read only device -"); printk(" write request ignored\n"); - end_request(req, 0); + __blk_end_request_all(req, -EIO); + continue; } - if (req->nr_sectors) - gdrom_request_handler_dma(req); - else - end_request(req, 0); + + /* + * Add to list of deferred work and then schedule + * workqueue. + */ + list_add_tail(&req->queuelist, &gdrom_deferred); + schedule_work(&work); } } @@ -743,7 +739,7 @@ static void __devinit probe_gdrom_setupdisk(void) static int __devinit probe_gdrom_setupqueue(void) { - blk_queue_hardsect_size(gd.gdrom_rq, GDROM_HARD_SECTOR); + blk_queue_logical_block_size(gd.gdrom_rq, GDROM_HARD_SECTOR); /* using DMA so memory will need to be contiguous */ blk_queue_max_hw_segments(gd.gdrom_rq, 1); /* set a large max size to get most from DMA */ diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c index 9b1624e0dde..0fff646cc2f 100644 --- a/drivers/cdrom/viocd.c +++ b/drivers/cdrom/viocd.c @@ -282,7 +282,7 @@ static int send_request(struct request *req) viopath_targetinst(viopath_hostLp), (u64)req, VIOVERSION << 16, ((u64)DEVICE_NR(diskinfo) << 48) | dmaaddr, - (u64)req->sector * 512, len, 0); + (u64)blk_rq_pos(req) * 512, len, 0); if (hvrc != HvLpEvent_Rc_Good) { printk(VIOCD_KERN_WARNING "hv error on op %d\n", (int)hvrc); return -1; @@ -291,36 +291,19 @@ static int send_request(struct request *req) return 0; } -static void viocd_end_request(struct request *req, int error) -{ - int nsectors = req->hard_nr_sectors; - - /* - * Make sure it's fully ended, and ensure that we process - * at least one sector. - */ - if (blk_pc_request(req)) - nsectors = (req->data_len + 511) >> 9; - if (!nsectors) - nsectors = 1; - - if (__blk_end_request(req, error, nsectors << 9)) - BUG(); -} - static int rwreq; static void do_viocd_request(struct request_queue *q) { struct request *req; - while ((rwreq == 0) && ((req = elv_next_request(q)) != NULL)) { + while ((rwreq == 0) && ((req = blk_fetch_request(q)) != NULL)) { if (!blk_fs_request(req)) - viocd_end_request(req, -EIO); + __blk_end_request_all(req, -EIO); else if (send_request(req) < 0) { printk(VIOCD_KERN_WARNING "unable to send message to OS/400!"); - viocd_end_request(req, -EIO); + __blk_end_request_all(req, -EIO); } else rwreq++; } @@ -486,8 +469,8 @@ static void vio_handle_cd_event(struct HvLpEvent *event) case viocdopen: if (event->xRc == 0) { di = &viocd_diskinfo[bevent->disk]; - blk_queue_hardsect_size(di->viocd_disk->queue, - bevent->block_size); + blk_queue_logical_block_size(di->viocd_disk->queue, + bevent->block_size); set_capacity(di->viocd_disk, bevent->media_size * bevent->block_size / 512); @@ -531,9 +514,9 @@ return_complete: "with rc %d:0x%04X: %s\n", req, event->xRc, bevent->sub_result, err->msg); - viocd_end_request(req, -EIO); + __blk_end_request_all(req, -EIO); } else - viocd_end_request(req, 0); + __blk_end_request_all(req, 0); /* restart handling of incoming requests */ spin_unlock_irqrestore(&viocd_reqlock, flags); diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index 735bbe2be51..02ecfd5fa61 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -97,6 +97,19 @@ config DEVKMEM kind of kernel debugging operations. When in doubt, say "N". +config BFIN_JTAG_COMM + tristate "Blackfin JTAG Communication" + depends on BLACKFIN + help + Add support for emulating a TTY device over the Blackfin JTAG. + + To compile this driver as a module, choose M here: the + module will be called bfin_jtag_comm. + +config BFIN_JTAG_COMM_CONSOLE + bool "Console on Blackfin JTAG" + depends on BFIN_JTAG_COMM=y + config SERIAL_NONSTANDARD bool "Non-standard serial port support" depends on HAS_IOMEM diff --git a/drivers/char/Makefile b/drivers/char/Makefile index 9caf5b5ad1c..189efcff08c 100644 --- a/drivers/char/Makefile +++ b/drivers/char/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_LEGACY_PTYS) += pty.o obj-$(CONFIG_UNIX98_PTYS) += pty.o obj-y += misc.o obj-$(CONFIG_VT) += vt_ioctl.o vc_screen.o selection.o keyboard.o +obj-$(CONFIG_BFIN_JTAG_COMM) += bfin_jtag_comm.o obj-$(CONFIG_CONSOLE_TRANSLATIONS) += consolemap.o consolemap_deftbl.o obj-$(CONFIG_HW_CONSOLE) += vt.o defkeymap.o obj-$(CONFIG_AUDIT) += tty_audit.o diff --git a/drivers/char/bfin_jtag_comm.c b/drivers/char/bfin_jtag_comm.c new file mode 100644 index 00000000000..44c113d5604 --- /dev/null +++ b/drivers/char/bfin_jtag_comm.c @@ -0,0 +1,365 @@ +/* + * TTY over Blackfin JTAG Communication + * + * Copyright 2008-2009 Analog Devices Inc. + * + * Enter bugs at http://blackfin.uclinux.org/ + * + * Licensed under the GPL-2 or later. + */ + +#include <linux/circ_buf.h> +#include <linux/console.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/kernel.h> +#include <linux/kthread.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/sched.h> +#include <linux/tty.h> +#include <linux/tty_driver.h> +#include <linux/tty_flip.h> +#include <asm/atomic.h> + +/* See the Debug/Emulation chapter in the HRM */ +#define EMUDOF 0x00000001 /* EMUDAT_OUT full & valid */ +#define EMUDIF 0x00000002 /* EMUDAT_IN full & valid */ +#define EMUDOOVF 0x00000004 /* EMUDAT_OUT overflow */ +#define EMUDIOVF 0x00000008 /* EMUDAT_IN overflow */ + +#define DRV_NAME "bfin-jtag-comm" +#define DEV_NAME "ttyBFJC" + +#define pr_init(fmt, args...) ({ static const __initdata char __fmt[] = fmt; printk(__fmt, ## args); }) +#define debug(fmt, args...) pr_debug(DRV_NAME ": " fmt, ## args) + +static inline uint32_t bfin_write_emudat(uint32_t emudat) +{ + __asm__ __volatile__("emudat = %0;" : : "d"(emudat)); + return emudat; +} + +static inline uint32_t bfin_read_emudat(void) +{ + uint32_t emudat; + __asm__ __volatile__("%0 = emudat;" : "=d"(emudat)); + return emudat; +} + +static inline uint32_t bfin_write_emudat_chars(char a, char b, char c, char d) +{ + return bfin_write_emudat((a << 0) | (b << 8) | (c << 16) | (d << 24)); +} + +#define CIRC_SIZE 2048 /* see comment in tty_io.c:do_tty_write() */ +#define CIRC_MASK (CIRC_SIZE - 1) +#define circ_empty(circ) ((circ)->head == (circ)->tail) +#define circ_free(circ) CIRC_SPACE((circ)->head, (circ)->tail, CIRC_SIZE) +#define circ_cnt(circ) CIRC_CNT((circ)->head, (circ)->tail, CIRC_SIZE) +#define circ_byte(circ, idx) ((circ)->buf[(idx) & CIRC_MASK]) + +static struct tty_driver *bfin_jc_driver; +static struct task_struct *bfin_jc_kthread; +static struct tty_struct * volatile bfin_jc_tty; +static unsigned long bfin_jc_count; +static DEFINE_MUTEX(bfin_jc_tty_mutex); +static volatile struct circ_buf bfin_jc_write_buf; + +static int +bfin_jc_emudat_manager(void *arg) +{ + uint32_t inbound_len = 0, outbound_len = 0; + + while (!kthread_should_stop()) { + /* no one left to give data to, so sleep */ + if (bfin_jc_tty == NULL && circ_empty(&bfin_jc_write_buf)) { + debug("waiting for readers\n"); + __set_current_state(TASK_UNINTERRUPTIBLE); + schedule(); + __set_current_state(TASK_RUNNING); + } + + /* no data available, so just chill */ + if (!(bfin_read_DBGSTAT() & EMUDIF) && circ_empty(&bfin_jc_write_buf)) { + debug("waiting for data (in_len = %i) (circ: %i %i)\n", + inbound_len, bfin_jc_write_buf.tail, bfin_jc_write_buf.head); + if (inbound_len) + schedule(); + else + schedule_timeout_interruptible(HZ); + continue; + } + + /* if incoming data is ready, eat it */ + if (bfin_read_DBGSTAT() & EMUDIF) { + struct tty_struct *tty; + mutex_lock(&bfin_jc_tty_mutex); + tty = (struct tty_struct *)bfin_jc_tty; + if (tty != NULL) { + uint32_t emudat = bfin_read_emudat(); + if (inbound_len == 0) { + debug("incoming length: 0x%08x\n", emudat); + inbound_len = emudat; + } else { + size_t num_chars = (4 <= inbound_len ? 4 : inbound_len); + debug(" incoming data: 0x%08x (pushing %zu)\n", emudat, num_chars); + inbound_len -= num_chars; + tty_insert_flip_string(tty, (unsigned char *)&emudat, num_chars); + tty_flip_buffer_push(tty); + } + } + mutex_unlock(&bfin_jc_tty_mutex); + } + + /* if outgoing data is ready, post it */ + if (!(bfin_read_DBGSTAT() & EMUDOF) && !circ_empty(&bfin_jc_write_buf)) { + if (outbound_len == 0) { + outbound_len = circ_cnt(&bfin_jc_write_buf); + bfin_write_emudat(outbound_len); + debug("outgoing length: 0x%08x\n", outbound_len); + } else { + struct tty_struct *tty; + int tail = bfin_jc_write_buf.tail; + size_t ate = (4 <= outbound_len ? 4 : outbound_len); + uint32_t emudat = + bfin_write_emudat_chars( + circ_byte(&bfin_jc_write_buf, tail + 0), + circ_byte(&bfin_jc_write_buf, tail + 1), + circ_byte(&bfin_jc_write_buf, tail + 2), + circ_byte(&bfin_jc_write_buf, tail + 3) + ); + bfin_jc_write_buf.tail += ate; + outbound_len -= ate; + mutex_lock(&bfin_jc_tty_mutex); + tty = (struct tty_struct *)bfin_jc_tty; + if (tty) + tty_wakeup(tty); + mutex_unlock(&bfin_jc_tty_mutex); + debug(" outgoing data: 0x%08x (pushing %zu)\n", emudat, ate); + } + } + } + + __set_current_state(TASK_RUNNING); + return 0; +} + +static int +bfin_jc_open(struct tty_struct *tty, struct file *filp) +{ + mutex_lock(&bfin_jc_tty_mutex); + debug("open %lu\n", bfin_jc_count); + ++bfin_jc_count; + bfin_jc_tty = tty; + wake_up_process(bfin_jc_kthread); + mutex_unlock(&bfin_jc_tty_mutex); + return 0; +} + +static void +bfin_jc_close(struct tty_struct *tty, struct file *filp) +{ + mutex_lock(&bfin_jc_tty_mutex); + debug("close %lu\n", bfin_jc_count); + if (--bfin_jc_count == 0) + bfin_jc_tty = NULL; + wake_up_process(bfin_jc_kthread); + mutex_unlock(&bfin_jc_tty_mutex); +} + +/* XXX: we dont handle the put_char() case where we must handle count = 1 */ +static int +bfin_jc_circ_write(const unsigned char *buf, int count) +{ + int i; + count = min(count, circ_free(&bfin_jc_write_buf)); + debug("going to write chunk of %i bytes\n", count); + for (i = 0; i < count; ++i) + circ_byte(&bfin_jc_write_buf, bfin_jc_write_buf.head + i) = buf[i]; + bfin_jc_write_buf.head += i; + return i; +} + +#ifndef CONFIG_BFIN_JTAG_COMM_CONSOLE +# define acquire_console_sem() +# define release_console_sem() +#endif +static int +bfin_jc_write(struct tty_struct *tty, const unsigned char *buf, int count) +{ + int i; + acquire_console_sem(); + i = bfin_jc_circ_write(buf, count); + release_console_sem(); + wake_up_process(bfin_jc_kthread); + return i; +} + +static void +bfin_jc_flush_chars(struct tty_struct *tty) +{ + wake_up_process(bfin_jc_kthread); +} + +static int +bfin_jc_write_room(struct tty_struct *tty) +{ + return circ_free(&bfin_jc_write_buf); +} + +static int +bfin_jc_chars_in_buffer(struct tty_struct *tty) +{ + return circ_cnt(&bfin_jc_write_buf); +} + +static void +bfin_jc_wait_until_sent(struct tty_struct *tty, int timeout) +{ + unsigned long expire = jiffies + timeout; + while (!circ_empty(&bfin_jc_write_buf)) { + if (signal_pending(current)) + break; + if (time_after(jiffies, expire)) + break; + } +} + +static struct tty_operations bfin_jc_ops = { + .open = bfin_jc_open, + .close = bfin_jc_close, + .write = bfin_jc_write, + /*.put_char = bfin_jc_put_char,*/ + .flush_chars = bfin_jc_flush_chars, + .write_room = bfin_jc_write_room, + .chars_in_buffer = bfin_jc_chars_in_buffer, + .wait_until_sent = bfin_jc_wait_until_sent, +}; + +static int __init bfin_jc_init(void) +{ + int ret; + + bfin_jc_kthread = kthread_create(bfin_jc_emudat_manager, NULL, DRV_NAME); + if (IS_ERR(bfin_jc_kthread)) + return PTR_ERR(bfin_jc_kthread); + + ret = -ENOMEM; + + bfin_jc_write_buf.head = bfin_jc_write_buf.tail = 0; + bfin_jc_write_buf.buf = kmalloc(CIRC_SIZE, GFP_KERNEL); + if (!bfin_jc_write_buf.buf) + goto err; + + bfin_jc_driver = alloc_tty_driver(1); + if (!bfin_jc_driver) + goto err; + + bfin_jc_driver->owner = THIS_MODULE; + bfin_jc_driver->driver_name = DRV_NAME; + bfin_jc_driver->name = DEV_NAME; + bfin_jc_driver->type = TTY_DRIVER_TYPE_SERIAL; + bfin_jc_driver->subtype = SERIAL_TYPE_NORMAL; + bfin_jc_driver->init_termios = tty_std_termios; + tty_set_operations(bfin_jc_driver, &bfin_jc_ops); + + ret = tty_register_driver(bfin_jc_driver); + if (ret) + goto err; + + pr_init(KERN_INFO DRV_NAME ": initialized\n"); + + return 0; + + err: + put_tty_driver(bfin_jc_driver); + kfree(bfin_jc_write_buf.buf); + kthread_stop(bfin_jc_kthread); + return ret; +} +module_init(bfin_jc_init); + +static void __exit bfin_jc_exit(void) +{ + kthread_stop(bfin_jc_kthread); + kfree(bfin_jc_write_buf.buf); + tty_unregister_driver(bfin_jc_driver); + put_tty_driver(bfin_jc_driver); +} +module_exit(bfin_jc_exit); + +#if defined(CONFIG_BFIN_JTAG_COMM_CONSOLE) || defined(CONFIG_EARLY_PRINTK) +static void +bfin_jc_straight_buffer_write(const char *buf, unsigned count) +{ + unsigned ate = 0; + while (bfin_read_DBGSTAT() & EMUDOF) + continue; + bfin_write_emudat(count); + while (ate < count) { + while (bfin_read_DBGSTAT() & EMUDOF) + continue; + bfin_write_emudat_chars(buf[ate], buf[ate+1], buf[ate+2], buf[ate+3]); + ate += 4; + } +} +#endif + +#ifdef CONFIG_BFIN_JTAG_COMM_CONSOLE +static void +bfin_jc_console_write(struct console *co, const char *buf, unsigned count) +{ + if (bfin_jc_kthread == NULL) + bfin_jc_straight_buffer_write(buf, count); + else + bfin_jc_circ_write(buf, count); +} + +static struct tty_driver * +bfin_jc_console_device(struct console *co, int *index) +{ + *index = co->index; + return bfin_jc_driver; +} + +static struct console bfin_jc_console = { + .name = DEV_NAME, + .write = bfin_jc_console_write, + .device = bfin_jc_console_device, + .flags = CON_ANYTIME | CON_PRINTBUFFER, + .index = -1, +}; + +static int __init bfin_jc_console_init(void) +{ + register_console(&bfin_jc_console); + return 0; +} +console_initcall(bfin_jc_console_init); +#endif + +#ifdef CONFIG_EARLY_PRINTK +static void __init +bfin_jc_early_write(struct console *co, const char *buf, unsigned int count) +{ + bfin_jc_straight_buffer_write(buf, count); +} + +static struct __initdata console bfin_jc_early_console = { + .name = "early_BFJC", + .write = bfin_jc_early_write, + .flags = CON_ANYTIME | CON_PRINTBUFFER, + .index = -1, +}; + +struct console * __init +bfin_jc_early_init(unsigned int port, unsigned int cflag) +{ + return &bfin_jc_early_console; +} +#endif + +MODULE_AUTHOR("Mike Frysinger <vapier@gentoo.org>"); +MODULE_DESCRIPTION("TTY over Blackfin JTAG Communication"); +MODULE_LICENSE("GPL"); diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c index 1fdb9f657d8..f3366d3f06c 100644 --- a/drivers/char/cyclades.c +++ b/drivers/char/cyclades.c @@ -604,7 +604,6 @@ #define NR_PORTS 256 -#define ZE_V1_NPORTS 64 #define ZO_V1 0 #define ZO_V2 1 #define ZE_V1 2 @@ -663,18 +662,6 @@ static void cy_throttle(struct tty_struct *tty); static void cy_send_xchar(struct tty_struct *tty, char ch); -#define IS_CYC_Z(card) ((card).num_chips == (unsigned int)-1) - -#define Z_FPGA_CHECK(card) \ - ((readl(&((struct RUNTIME_9060 __iomem *) \ - ((card).ctl_addr))->init_ctrl) & (1<<17)) != 0) - -#define ISZLOADED(card) (((ZO_V1 == readl(&((struct RUNTIME_9060 __iomem *) \ - ((card).ctl_addr))->mail_box_0)) || \ - Z_FPGA_CHECK(card)) && \ - (ZFIRM_ID == readl(&((struct FIRM_ID __iomem *) \ - ((card).base_addr+ID_ADDRESS))->signature))) - #ifndef SERIAL_XMIT_SIZE #define SERIAL_XMIT_SIZE (min(PAGE_SIZE, 4096)) #endif @@ -687,8 +674,6 @@ static void cy_send_xchar(struct tty_struct *tty, char ch); #define DRIVER_VERSION 0x02010203 #define RAM_SIZE 0x80000 -#define Z_FPGA_LOADED(X) ((readl(&(X)->init_ctrl) & (1<<17)) != 0) - enum zblock_type { ZBLOCK_PRG = 0, ZBLOCK_FPGA = 1 @@ -883,6 +868,29 @@ static void cyz_rx_restart(unsigned long); static struct timer_list cyz_rx_full_timer[NR_PORTS]; #endif /* CONFIG_CYZ_INTR */ +static inline bool cy_is_Z(struct cyclades_card *card) +{ + return card->num_chips == (unsigned int)-1; +} + +static inline bool __cyz_fpga_loaded(struct RUNTIME_9060 __iomem *ctl_addr) +{ + return readl(&ctl_addr->init_ctrl) & (1 << 17); +} + +static inline bool cyz_fpga_loaded(struct cyclades_card *card) +{ + return __cyz_fpga_loaded(card->ctl_addr.p9060); +} + +static inline bool cyz_is_loaded(struct cyclades_card *card) +{ + struct FIRM_ID __iomem *fw_id = card->base_addr + ID_ADDRESS; + + return (card->hw_ver == ZO_V1 || cyz_fpga_loaded(card)) && + readl(&fw_id->signature) == ZFIRM_ID; +} + static inline int serial_paranoia_check(struct cyclades_port *info, char *name, const char *routine) { @@ -1395,19 +1403,15 @@ cyz_fetch_msg(struct cyclades_card *cinfo, unsigned long loc_doorbell; firm_id = cinfo->base_addr + ID_ADDRESS; - if (!ISZLOADED(*cinfo)) - return -1; zfw_ctrl = cinfo->base_addr + (readl(&firm_id->zfwctrl_addr) & 0xfffff); board_ctrl = &zfw_ctrl->board_ctrl; - loc_doorbell = readl(&((struct RUNTIME_9060 __iomem *) - (cinfo->ctl_addr))->loc_doorbell); + loc_doorbell = readl(&cinfo->ctl_addr.p9060->loc_doorbell); if (loc_doorbell) { *cmd = (char)(0xff & loc_doorbell); *channel = readl(&board_ctrl->fwcmd_channel); *param = (__u32) readl(&board_ctrl->fwcmd_param); - cy_writel(&((struct RUNTIME_9060 __iomem *)(cinfo->ctl_addr))-> - loc_doorbell, 0xffffffff); + cy_writel(&cinfo->ctl_addr.p9060->loc_doorbell, 0xffffffff); return 1; } return 0; @@ -1424,15 +1428,14 @@ cyz_issue_cmd(struct cyclades_card *cinfo, unsigned int index; firm_id = cinfo->base_addr + ID_ADDRESS; - if (!ISZLOADED(*cinfo)) + if (!cyz_is_loaded(cinfo)) return -1; zfw_ctrl = cinfo->base_addr + (readl(&firm_id->zfwctrl_addr) & 0xfffff); board_ctrl = &zfw_ctrl->board_ctrl; index = 0; - pci_doorbell = - &((struct RUNTIME_9060 __iomem *)(cinfo->ctl_addr))->pci_doorbell; + pci_doorbell = &cinfo->ctl_addr.p9060->pci_doorbell; while ((readl(pci_doorbell) & 0xff) != 0) { if (index++ == 1000) return (int)(readl(pci_doorbell) & 0xff); @@ -1624,10 +1627,8 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo) static struct BOARD_CTRL __iomem *board_ctrl; static struct CH_CTRL __iomem *ch_ctrl; static struct BUF_CTRL __iomem *buf_ctrl; - __u32 channel; + __u32 channel, param, fw_ver; __u8 cmd; - __u32 param; - __u32 hw_ver, fw_ver; int special_count; int delta_count; @@ -1635,8 +1636,6 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo) zfw_ctrl = cinfo->base_addr + (readl(&firm_id->zfwctrl_addr) & 0xfffff); board_ctrl = &zfw_ctrl->board_ctrl; fw_ver = readl(&board_ctrl->fw_version); - hw_ver = readl(&((struct RUNTIME_9060 __iomem *)(cinfo->ctl_addr))-> - mail_box_0); while (cyz_fetch_msg(cinfo, &channel, &cmd, ¶m) == 1) { special_count = 0; @@ -1737,15 +1736,7 @@ static irqreturn_t cyz_interrupt(int irq, void *dev_id) { struct cyclades_card *cinfo = dev_id; - if (unlikely(cinfo == NULL)) { -#ifdef CY_DEBUG_INTERRUPTS - printk(KERN_DEBUG "cyz_interrupt: spurious interrupt %d\n", - irq); -#endif - return IRQ_NONE; /* spurious interrupt */ - } - - if (unlikely(!ISZLOADED(*cinfo))) { + if (unlikely(!cyz_is_loaded(cinfo))) { #ifdef CY_DEBUG_INTERRUPTS printk(KERN_DEBUG "cyz_interrupt: board not yet loaded " "(IRQ%d).\n", irq); @@ -1785,7 +1776,6 @@ static void cyz_poll(unsigned long arg) struct tty_struct *tty; struct FIRM_ID __iomem *firm_id; struct ZFW_CTRL __iomem *zfw_ctrl; - struct BOARD_CTRL __iomem *board_ctrl; struct BUF_CTRL __iomem *buf_ctrl; unsigned long expires = jiffies + HZ; unsigned int port, card; @@ -1793,19 +1783,17 @@ static void cyz_poll(unsigned long arg) for (card = 0; card < NR_CARDS; card++) { cinfo = &cy_card[card]; - if (!IS_CYC_Z(*cinfo)) + if (!cy_is_Z(cinfo)) continue; - if (!ISZLOADED(*cinfo)) + if (!cyz_is_loaded(cinfo)) continue; firm_id = cinfo->base_addr + ID_ADDRESS; zfw_ctrl = cinfo->base_addr + (readl(&firm_id->zfwctrl_addr) & 0xfffff); - board_ctrl = &(zfw_ctrl->board_ctrl); /* Skip first polling cycle to avoid racing conditions with the FW */ if (!cinfo->intr_enabled) { - cinfo->nports = (int)readl(&board_ctrl->n_channel); cinfo->intr_enabled = 1; continue; } @@ -1874,7 +1862,7 @@ static int startup(struct cyclades_port *info) set_line_char(info); - if (!IS_CYC_Z(*card)) { + if (!cy_is_Z(card)) { chip = channel >> 2; channel &= 0x03; index = card->bus_index; @@ -1931,7 +1919,7 @@ static int startup(struct cyclades_port *info) base_addr = card->base_addr; firm_id = base_addr + ID_ADDRESS; - if (!ISZLOADED(*card)) + if (!cyz_is_loaded(card)) return -ENODEV; zfw_ctrl = card->base_addr + @@ -2026,7 +2014,7 @@ static void start_xmit(struct cyclades_port *info) card = info->card; channel = info->line - card->first_line; - if (!IS_CYC_Z(*card)) { + if (!cy_is_Z(card)) { chip = channel >> 2; channel &= 0x03; index = card->bus_index; @@ -2070,7 +2058,7 @@ static void shutdown(struct cyclades_port *info) card = info->card; channel = info->line - card->first_line; - if (!IS_CYC_Z(*card)) { + if (!cy_is_Z(card)) { chip = channel >> 2; channel &= 0x03; index = card->bus_index; @@ -2126,7 +2114,7 @@ static void shutdown(struct cyclades_port *info) #endif firm_id = base_addr + ID_ADDRESS; - if (!ISZLOADED(*card)) + if (!cyz_is_loaded(card)) return; zfw_ctrl = card->base_addr + @@ -2233,7 +2221,7 @@ block_til_ready(struct tty_struct *tty, struct file *filp, #endif info->port.blocked_open++; - if (!IS_CYC_Z(*cinfo)) { + if (!cy_is_Z(cinfo)) { chip = channel >> 2; channel &= 0x03; index = cinfo->bus_index; @@ -2296,7 +2284,7 @@ block_til_ready(struct tty_struct *tty, struct file *filp, base_addr = cinfo->base_addr; firm_id = base_addr + ID_ADDRESS; - if (!ISZLOADED(*cinfo)) { + if (!cyz_is_loaded(cinfo)) { __set_current_state(TASK_RUNNING); remove_wait_queue(&info->port.open_wait, &wait); return -EINVAL; @@ -2397,16 +2385,14 @@ static int cy_open(struct tty_struct *tty, struct file *filp) treat it as absent from the system. This will make the user pay attention. */ - if (IS_CYC_Z(*info->card)) { + if (cy_is_Z(info->card)) { struct cyclades_card *cinfo = info->card; struct FIRM_ID __iomem *firm_id = cinfo->base_addr + ID_ADDRESS; - if (!ISZLOADED(*cinfo)) { - if (((ZE_V1 == readl(&((struct RUNTIME_9060 __iomem *) - (cinfo->ctl_addr))->mail_box_0)) && - Z_FPGA_CHECK(*cinfo)) && - (ZFIRM_HLT == readl( - &firm_id->signature))) { + if (!cyz_is_loaded(cinfo)) { + if (cinfo->hw_ver == ZE_V1 && cyz_fpga_loaded(cinfo) && + readl(&firm_id->signature) == + ZFIRM_HLT) { printk(KERN_ERR "cyc:Cyclades-Z Error: you " "need an external power supply for " "this number of ports.\nFirmware " @@ -2423,18 +2409,13 @@ static int cy_open(struct tty_struct *tty, struct file *filp) interrupts should be enabled as soon as the first open happens to one of its ports. */ if (!cinfo->intr_enabled) { - struct ZFW_CTRL __iomem *zfw_ctrl; - struct BOARD_CTRL __iomem *board_ctrl; - - zfw_ctrl = cinfo->base_addr + - (readl(&firm_id->zfwctrl_addr) & - 0xfffff); - - board_ctrl = &zfw_ctrl->board_ctrl; + u16 intr; /* Enable interrupts on the PLX chip */ - cy_writew(cinfo->ctl_addr + 0x68, - readw(cinfo->ctl_addr + 0x68) | 0x0900); + intr = readw(&cinfo->ctl_addr.p9060-> + intr_ctrl_stat) | 0x0900; + cy_writew(&cinfo->ctl_addr.p9060-> + intr_ctrl_stat, intr); /* Enable interrupts on the FW */ retval = cyz_issue_cmd(cinfo, 0, C_CM_IRQ_ENBL, 0L); @@ -2442,8 +2423,6 @@ static int cy_open(struct tty_struct *tty, struct file *filp) printk(KERN_ERR "cyc:IRQ enable retval " "was %x\n", retval); } - cinfo->nports = - (int)readl(&board_ctrl->n_channel); cinfo->intr_enabled = 1; } } @@ -2556,7 +2535,7 @@ static void cy_wait_until_sent(struct tty_struct *tty, int timeout) #endif card = info->card; channel = (info->line) - (card->first_line); - if (!IS_CYC_Z(*card)) { + if (!cy_is_Z(card)) { chip = channel >> 2; channel &= 0x03; index = card->bus_index; @@ -2601,7 +2580,7 @@ static void cy_flush_buffer(struct tty_struct *tty) info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; spin_unlock_irqrestore(&card->card_lock, flags); - if (IS_CYC_Z(*card)) { /* If it is a Z card, flush the on-board + if (cy_is_Z(card)) { /* If it is a Z card, flush the on-board buffers as well */ spin_lock_irqsave(&card->card_lock, flags); retval = cyz_issue_cmd(card, channel, C_CM_FLUSH_TX, 0L); @@ -2682,7 +2661,7 @@ static void cy_close(struct tty_struct *tty, struct file *filp) spin_lock_irqsave(&card->card_lock, flags); - if (!IS_CYC_Z(*card)) { + if (!cy_is_Z(card)) { int channel = info->line - card->first_line; int index = card->bus_index; void __iomem *base_addr = card->base_addr + @@ -2902,7 +2881,7 @@ static int cy_chars_in_buffer(struct tty_struct *tty) channel = (info->line) - (card->first_line); #ifdef Z_EXT_CHARS_IN_BUFFER - if (!IS_CYC_Z(cy_card[card])) { + if (!cy_is_Z(card)) { #endif /* Z_EXT_CHARS_IN_BUFFER */ #ifdef CY_DEBUG_IO printk(KERN_DEBUG "cyc:cy_chars_in_buffer ttyC%d %d\n", @@ -2984,7 +2963,6 @@ static void set_line_char(struct cyclades_port *info) void __iomem *base_addr; int chip, channel, index; unsigned cflag, iflag; - unsigned short chip_number; int baud, baud_rate = 0; int i; @@ -3013,9 +2991,8 @@ static void set_line_char(struct cyclades_port *info) card = info->card; channel = info->line - card->first_line; - chip_number = channel / 4; - if (!IS_CYC_Z(*card)) { + if (!cy_is_Z(card)) { index = card->bus_index; @@ -3233,21 +3210,17 @@ static void set_line_char(struct cyclades_port *info) } else { struct FIRM_ID __iomem *firm_id; struct ZFW_CTRL __iomem *zfw_ctrl; - struct BOARD_CTRL __iomem *board_ctrl; struct CH_CTRL __iomem *ch_ctrl; - struct BUF_CTRL __iomem *buf_ctrl; __u32 sw_flow; int retval; firm_id = card->base_addr + ID_ADDRESS; - if (!ISZLOADED(*card)) + if (!cyz_is_loaded(card)) return; zfw_ctrl = card->base_addr + (readl(&firm_id->zfwctrl_addr) & 0xfffff); - board_ctrl = &zfw_ctrl->board_ctrl; ch_ctrl = &(zfw_ctrl->ch_ctrl[channel]); - buf_ctrl = &zfw_ctrl->buf_ctrl[channel]; /* baud rate */ baud = tty_get_baud_rate(info->port.tty); @@ -3457,7 +3430,7 @@ static int get_lsr_info(struct cyclades_port *info, unsigned int __user *value) card = info->card; channel = (info->line) - (card->first_line); - if (!IS_CYC_Z(*card)) { + if (!cy_is_Z(card)) { chip = channel >> 2; channel &= 0x03; index = card->bus_index; @@ -3497,7 +3470,7 @@ static int cy_tiocmget(struct tty_struct *tty, struct file *file) card = info->card; channel = info->line - card->first_line; - if (!IS_CYC_Z(*card)) { + if (!cy_is_Z(card)) { chip = channel >> 2; channel &= 0x03; index = card->bus_index; @@ -3523,7 +3496,7 @@ static int cy_tiocmget(struct tty_struct *tty, struct file *file) } else { base_addr = card->base_addr; firm_id = card->base_addr + ID_ADDRESS; - if (ISZLOADED(*card)) { + if (cyz_is_loaded(card)) { zfw_ctrl = card->base_addr + (readl(&firm_id->zfwctrl_addr) & 0xfffff); board_ctrl = &zfw_ctrl->board_ctrl; @@ -3566,7 +3539,7 @@ cy_tiocmset(struct tty_struct *tty, struct file *file, card = info->card; channel = (info->line) - (card->first_line); - if (!IS_CYC_Z(*card)) { + if (!cy_is_Z(card)) { chip = channel >> 2; channel &= 0x03; index = card->bus_index; @@ -3641,7 +3614,7 @@ cy_tiocmset(struct tty_struct *tty, struct file *file, base_addr = card->base_addr; firm_id = card->base_addr + ID_ADDRESS; - if (ISZLOADED(*card)) { + if (cyz_is_loaded(card)) { zfw_ctrl = card->base_addr + (readl(&firm_id->zfwctrl_addr) & 0xfffff); board_ctrl = &zfw_ctrl->board_ctrl; @@ -3713,7 +3686,7 @@ static int cy_break(struct tty_struct *tty, int break_state) card = info->card; spin_lock_irqsave(&card->card_lock, flags); - if (!IS_CYC_Z(*card)) { + if (!cy_is_Z(card)) { /* Let the transmit ISR take care of this (since it requires stuffing characters into the output stream). */ @@ -3782,7 +3755,7 @@ static int set_threshold(struct cyclades_port *info, unsigned long value) card = info->card; channel = info->line - card->first_line; - if (!IS_CYC_Z(*card)) { + if (!cy_is_Z(card)) { chip = channel >> 2; channel &= 0x03; index = card->bus_index; @@ -3810,7 +3783,7 @@ static int get_threshold(struct cyclades_port *info, card = info->card; channel = info->line - card->first_line; - if (!IS_CYC_Z(*card)) { + if (!cy_is_Z(card)) { chip = channel >> 2; channel &= 0x03; index = card->bus_index; @@ -3844,7 +3817,7 @@ static int set_timeout(struct cyclades_port *info, unsigned long value) card = info->card; channel = info->line - card->first_line; - if (!IS_CYC_Z(*card)) { + if (!cy_is_Z(card)) { chip = channel >> 2; channel &= 0x03; index = card->bus_index; @@ -3867,7 +3840,7 @@ static int get_timeout(struct cyclades_port *info, card = info->card; channel = info->line - card->first_line; - if (!IS_CYC_Z(*card)) { + if (!cy_is_Z(card)) { chip = channel >> 2; channel &= 0x03; index = card->bus_index; @@ -4121,7 +4094,7 @@ static void cy_send_xchar(struct tty_struct *tty, char ch) card = info->card; channel = info->line - card->first_line; - if (IS_CYC_Z(*card)) { + if (cy_is_Z(card)) { if (ch == STOP_CHAR(tty)) cyz_issue_cmd(card, channel, C_CM_SENDXOFF, 0L); else if (ch == START_CHAR(tty)) @@ -4154,7 +4127,7 @@ static void cy_throttle(struct tty_struct *tty) card = info->card; if (I_IXOFF(tty)) { - if (!IS_CYC_Z(*card)) + if (!cy_is_Z(card)) cy_send_xchar(tty, STOP_CHAR(tty)); else info->throttle = 1; @@ -4162,7 +4135,7 @@ static void cy_throttle(struct tty_struct *tty) if (tty->termios->c_cflag & CRTSCTS) { channel = info->line - card->first_line; - if (!IS_CYC_Z(*card)) { + if (!cy_is_Z(card)) { chip = channel >> 2; channel &= 0x03; index = card->bus_index; @@ -4219,7 +4192,7 @@ static void cy_unthrottle(struct tty_struct *tty) if (tty->termios->c_cflag & CRTSCTS) { card = info->card; channel = info->line - card->first_line; - if (!IS_CYC_Z(*card)) { + if (!cy_is_Z(card)) { chip = channel >> 2; channel &= 0x03; index = card->bus_index; @@ -4263,7 +4236,7 @@ static void cy_stop(struct tty_struct *tty) cinfo = info->card; channel = info->line - cinfo->first_line; - if (!IS_CYC_Z(*cinfo)) { + if (!cy_is_Z(cinfo)) { index = cinfo->bus_index; chip = channel >> 2; channel &= 0x03; @@ -4296,7 +4269,7 @@ static void cy_start(struct tty_struct *tty) cinfo = info->card; channel = info->line - cinfo->first_line; index = cinfo->bus_index; - if (!IS_CYC_Z(*cinfo)) { + if (!cy_is_Z(cinfo)) { chip = channel >> 2; channel &= 0x03; base_addr = cinfo->base_addr + (cy_chip_offset[chip] << index); @@ -4347,33 +4320,20 @@ static void cy_hangup(struct tty_struct *tty) static int __devinit cy_init_card(struct cyclades_card *cinfo) { struct cyclades_port *info; - u32 uninitialized_var(mailbox); - unsigned int nports, port; + unsigned int port; unsigned short chip_number; - int uninitialized_var(index); spin_lock_init(&cinfo->card_lock); + cinfo->intr_enabled = 0; - if (IS_CYC_Z(*cinfo)) { /* Cyclades-Z */ - mailbox = readl(&((struct RUNTIME_9060 __iomem *) - cinfo->ctl_addr)->mail_box_0); - nports = (mailbox == ZE_V1) ? ZE_V1_NPORTS : 8; - cinfo->intr_enabled = 0; - cinfo->nports = 0; /* Will be correctly set later, after - Z FW is loaded */ - } else { - index = cinfo->bus_index; - nports = cinfo->nports = CyPORTS_PER_CHIP * cinfo->num_chips; - } - - cinfo->ports = kzalloc(sizeof(*cinfo->ports) * nports, GFP_KERNEL); + cinfo->ports = kcalloc(cinfo->nports, sizeof(*cinfo->ports), + GFP_KERNEL); if (cinfo->ports == NULL) { printk(KERN_ERR "Cyclades: cannot allocate ports\n"); - cinfo->nports = 0; return -ENOMEM; } - for (port = cinfo->first_line; port < cinfo->first_line + nports; + for (port = cinfo->first_line; port < cinfo->first_line + cinfo->nports; port++) { info = &cinfo->ports[port - cinfo->first_line]; tty_port_init(&info->port); @@ -4387,9 +4347,9 @@ static int __devinit cy_init_card(struct cyclades_card *cinfo) init_completion(&info->shutdown_wait); init_waitqueue_head(&info->delta_msr_wait); - if (IS_CYC_Z(*cinfo)) { + if (cy_is_Z(cinfo)) { info->type = PORT_STARTECH; - if (mailbox == ZO_V1) + if (cinfo->hw_ver == ZO_V1) info->xmit_fifo_size = CYZ_FIFO_SIZE; else info->xmit_fifo_size = 4 * CYZ_FIFO_SIZE; @@ -4398,6 +4358,7 @@ static int __devinit cy_init_card(struct cyclades_card *cinfo) cyz_rx_restart, (unsigned long)info); #endif } else { + int index = cinfo->bus_index; info->type = PORT_CIRRUS; info->xmit_fifo_size = CyMAX_CHAR_FIFO; info->cor1 = CyPARITY_NONE | Cy_1_STOP | Cy_8_BITS; @@ -4430,7 +4391,7 @@ static int __devinit cy_init_card(struct cyclades_card *cinfo) } #ifndef CONFIG_CYZ_INTR - if (IS_CYC_Z(*cinfo) && !timer_pending(&cyz_timerlist)) { + if (cy_is_Z(cinfo) && !timer_pending(&cyz_timerlist)) { mod_timer(&cyz_timerlist, jiffies + 1); #ifdef CY_PCI_DEBUG printk(KERN_DEBUG "Cyclades-Z polling initialized\n"); @@ -4621,11 +4582,12 @@ static int __init cy_detect_isa(void) /* set cy_card */ cy_card[j].base_addr = cy_isa_address; - cy_card[j].ctl_addr = NULL; + cy_card[j].ctl_addr.p9050 = NULL; cy_card[j].irq = (int)cy_isa_irq; cy_card[j].bus_index = 0; cy_card[j].first_line = cy_next_channel; - cy_card[j].num_chips = cy_isa_nchan / 4; + cy_card[j].num_chips = cy_isa_nchan / CyPORTS_PER_CHIP; + cy_card[j].nports = cy_isa_nchan; if (cy_init_card(&cy_card[j])) { cy_card[j].base_addr = NULL; free_irq(cy_isa_irq, &cy_card[j]); @@ -4781,7 +4743,7 @@ static int __devinit cyz_load_fw(struct pci_dev *pdev, void __iomem *base_addr, struct CUSTOM_REG __iomem *cust = base_addr; struct ZFW_CTRL __iomem *pt_zfwctrl; void __iomem *tmp; - u32 mailbox, status; + u32 mailbox, status, nchan; unsigned int i; int retval; @@ -4793,7 +4755,7 @@ static int __devinit cyz_load_fw(struct pci_dev *pdev, void __iomem *base_addr, /* Check whether the firmware is already loaded and running. If positive, skip this board */ - if (Z_FPGA_LOADED(ctl_addr) && readl(&fid->signature) == ZFIRM_ID) { + if (__cyz_fpga_loaded(ctl_addr) && readl(&fid->signature) == ZFIRM_ID) { u32 cntval = readl(base_addr + 0x190); udelay(100); @@ -4812,7 +4774,7 @@ static int __devinit cyz_load_fw(struct pci_dev *pdev, void __iomem *base_addr, mailbox = readl(&ctl_addr->mail_box_0); - if (mailbox == 0 || Z_FPGA_LOADED(ctl_addr)) { + if (mailbox == 0 || __cyz_fpga_loaded(ctl_addr)) { /* stops CPU and set window to beginning of RAM */ cy_writel(&ctl_addr->loc_addr_base, WIN_CREG); cy_writel(&cust->cpu_stop, 0); @@ -4828,7 +4790,7 @@ static int __devinit cyz_load_fw(struct pci_dev *pdev, void __iomem *base_addr, base_addr); if (retval) goto err_rel; - if (!Z_FPGA_LOADED(ctl_addr)) { + if (!__cyz_fpga_loaded(ctl_addr)) { dev_err(&pdev->dev, "fw upload successful, but fw is " "not loaded\n"); goto err_rel; @@ -4887,7 +4849,7 @@ static int __devinit cyz_load_fw(struct pci_dev *pdev, void __iomem *base_addr, "system before loading the new FW to the " "Cyclades-Z.\n"); - if (Z_FPGA_LOADED(ctl_addr)) + if (__cyz_fpga_loaded(ctl_addr)) plx_init(pdev, irq, ctl_addr); retval = -EIO; @@ -4902,16 +4864,16 @@ static int __devinit cyz_load_fw(struct pci_dev *pdev, void __iomem *base_addr, base_addr + ID_ADDRESS, readl(&fid->zfwctrl_addr), base_addr + readl(&fid->zfwctrl_addr)); + nchan = readl(&pt_zfwctrl->board_ctrl.n_channel); dev_info(&pdev->dev, "Cyclades-Z FW loaded: version = %x, ports = %u\n", - readl(&pt_zfwctrl->board_ctrl.fw_version), - readl(&pt_zfwctrl->board_ctrl.n_channel)); + readl(&pt_zfwctrl->board_ctrl.fw_version), nchan); - if (readl(&pt_zfwctrl->board_ctrl.n_channel) == 0) { + if (nchan == 0) { dev_warn(&pdev->dev, "no Cyclades-Z ports were found. Please " "check the connection between the Z host card and the " "serial expanders.\n"); - if (Z_FPGA_LOADED(ctl_addr)) + if (__cyz_fpga_loaded(ctl_addr)) plx_init(pdev, irq, ctl_addr); dev_info(&pdev->dev, "Null number of ports detected. Board " @@ -4932,9 +4894,7 @@ static int __devinit cyz_load_fw(struct pci_dev *pdev, void __iomem *base_addr, cy_writel(&ctl_addr->intr_ctrl_stat, readl(&ctl_addr->intr_ctrl_stat) | 0x00030800UL); - plx_init(pdev, irq, ctl_addr); - - return 0; + return nchan; err_rel: release_firmware(fw); err: @@ -4946,7 +4906,7 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, { void __iomem *addr0 = NULL, *addr2 = NULL; char *card_name = NULL; - u32 mailbox; + u32 uninitialized_var(mailbox); unsigned int device_id, nchan = 0, card_no, i; unsigned char plx_ver; int retval, irq; @@ -5023,11 +4983,12 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, } /* Disable interrupts on the PLX before resetting it */ - cy_writew(addr0 + 0x68, readw(addr0 + 0x68) & ~0x0900); + cy_writew(&ctl_addr->intr_ctrl_stat, + readw(&ctl_addr->intr_ctrl_stat) & ~0x0900); plx_init(pdev, irq, addr0); - mailbox = (u32)readl(&ctl_addr->mail_box_0); + mailbox = readl(&ctl_addr->mail_box_0); addr2 = ioremap_nocache(pci_resource_start(pdev, 2), mailbox == ZE_V1 ? CyPCI_Ze_win : CyPCI_Zwin); @@ -5038,12 +4999,8 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, if (mailbox == ZE_V1) { card_name = "Cyclades-Ze"; - - readl(&ctl_addr->mail_box_0); - nchan = ZE_V1_NPORTS; } else { card_name = "Cyclades-8Zo"; - #ifdef CY_PCI_DEBUG if (mailbox == ZO_V1) { cy_writel(&ctl_addr->loc_addr_base, WIN_CREG); @@ -5065,15 +5022,12 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, */ if ((mailbox == ZO_V1) || (mailbox == ZO_V2)) cy_writel(addr2 + ID_ADDRESS, 0L); - - retval = cyz_load_fw(pdev, addr2, addr0, irq); - if (retval) - goto err_unmap; - /* This must be a Cyclades-8Zo/PCI. The extendable - version will have a different device_id and will - be allocated its maximum number of ports. */ - nchan = 8; } + + retval = cyz_load_fw(pdev, addr2, addr0, irq); + if (retval <= 0) + goto err_unmap; + nchan = retval; } if ((cy_next_channel + nchan) > NR_PORTS) { @@ -5103,8 +5057,10 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, dev_err(&pdev->dev, "could not allocate IRQ\n"); goto err_unmap; } - cy_card[card_no].num_chips = nchan / 4; + cy_card[card_no].num_chips = nchan / CyPORTS_PER_CHIP; } else { + cy_card[card_no].hw_ver = mailbox; + cy_card[card_no].num_chips = (unsigned int)-1; #ifdef CONFIG_CYZ_INTR /* allocate IRQ only if board has an IRQ */ if (irq != 0 && irq != 255) { @@ -5117,15 +5073,15 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, } } #endif /* CONFIG_CYZ_INTR */ - cy_card[card_no].num_chips = (unsigned int)-1; } /* set cy_card */ cy_card[card_no].base_addr = addr2; - cy_card[card_no].ctl_addr = addr0; + cy_card[card_no].ctl_addr.p9050 = addr0; cy_card[card_no].irq = irq; cy_card[card_no].bus_index = 1; cy_card[card_no].first_line = cy_next_channel; + cy_card[card_no].nports = nchan; retval = cy_init_card(&cy_card[card_no]); if (retval) goto err_null; @@ -5138,17 +5094,20 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, plx_ver = readb(addr2 + CyPLX_VER) & 0x0f; switch (plx_ver) { case PLX_9050: - cy_writeb(addr0 + 0x4c, 0x43); break; case PLX_9060: case PLX_9080: default: /* Old boards, use PLX_9060 */ - plx_init(pdev, irq, addr0); - cy_writew(addr0 + 0x68, readw(addr0 + 0x68) | 0x0900); + { + struct RUNTIME_9060 __iomem *ctl_addr = addr0; + plx_init(pdev, irq, ctl_addr); + cy_writew(&ctl_addr->intr_ctrl_stat, + readw(&ctl_addr->intr_ctrl_stat) | 0x0900); break; } + } } dev_info(&pdev->dev, "%s/PCI #%d found: %d channels starting from " @@ -5179,22 +5138,23 @@ static void __devexit cy_pci_remove(struct pci_dev *pdev) unsigned int i; /* non-Z with old PLX */ - if (!IS_CYC_Z(*cinfo) && (readb(cinfo->base_addr + CyPLX_VER) & 0x0f) == + if (!cy_is_Z(cinfo) && (readb(cinfo->base_addr + CyPLX_VER) & 0x0f) == PLX_9050) - cy_writeb(cinfo->ctl_addr + 0x4c, 0); + cy_writeb(cinfo->ctl_addr.p9050 + 0x4c, 0); else #ifndef CONFIG_CYZ_INTR - if (!IS_CYC_Z(*cinfo)) + if (!cy_is_Z(cinfo)) #endif - cy_writew(cinfo->ctl_addr + 0x68, - readw(cinfo->ctl_addr + 0x68) & ~0x0900); + cy_writew(&cinfo->ctl_addr.p9060->intr_ctrl_stat, + readw(&cinfo->ctl_addr.p9060->intr_ctrl_stat) & + ~0x0900); iounmap(cinfo->base_addr); - if (cinfo->ctl_addr) - iounmap(cinfo->ctl_addr); + if (cinfo->ctl_addr.p9050) + iounmap(cinfo->ctl_addr.p9050); if (cinfo->irq #ifndef CONFIG_CYZ_INTR - && !IS_CYC_Z(*cinfo) + && !cy_is_Z(cinfo) #endif /* CONFIG_CYZ_INTR */ ) free_irq(cinfo->irq, cinfo); @@ -5240,7 +5200,7 @@ static int cyclades_proc_show(struct seq_file *m, void *v) (cur_jifs - info->idle_stats.recv_idle)/ HZ, info->idle_stats.overruns, /* FIXME: double check locking */ - (long)info->port.tty->ldisc.ops->num); + (long)info->port.tty->ldisc->ops->num); else seq_printf(m, "%3d %8lu %10lu %8lu " "%10lu %8lu %9lu %6ld\n", @@ -5386,11 +5346,11 @@ static void __exit cy_cleanup_module(void) /* clear interrupt */ cy_writeb(card->base_addr + Cy_ClrIntr, 0); iounmap(card->base_addr); - if (card->ctl_addr) - iounmap(card->ctl_addr); + if (card->ctl_addr.p9050) + iounmap(card->ctl_addr.p9050); if (card->irq #ifndef CONFIG_CYZ_INTR - && !IS_CYC_Z(*card) + && !cy_is_Z(card) #endif /* CONFIG_CYZ_INTR */ ) free_irq(card->irq, card); diff --git a/drivers/char/epca.c b/drivers/char/epca.c index af7c13ca949..abef1f7d84f 100644 --- a/drivers/char/epca.c +++ b/drivers/char/epca.c @@ -745,7 +745,7 @@ static int epca_carrier_raised(struct tty_port *port) return 0; } -static void epca_raise_dtr_rts(struct tty_port *port) +static void epca_dtr_rts(struct tty_port *port, int onoff) { } @@ -925,7 +925,7 @@ static const struct tty_operations pc_ops = { static const struct tty_port_operations epca_port_ops = { .carrier_raised = epca_carrier_raised, - .raise_dtr_rts = epca_raise_dtr_rts, + .dtr_rts = epca_dtr_rts, }; static int info_open(struct tty_struct *tty, struct file *filp) @@ -1518,7 +1518,7 @@ static void doevent(int crd) if (event & MODEMCHG_IND) { /* A modem signal change has been indicated */ ch->imodem = mstat; - if (test_bit(ASYNC_CHECK_CD, &ch->port.flags)) { + if (test_bit(ASYNCB_CHECK_CD, &ch->port.flags)) { /* We are now receiving dcd */ if (mstat & ch->dcd) wake_up_interruptible(&ch->port.open_wait); @@ -1765,9 +1765,9 @@ static void epcaparam(struct tty_struct *tty, struct channel *ch) * that the driver will wait on carrier detect. */ if (ts->c_cflag & CLOCAL) - clear_bit(ASYNC_CHECK_CD, &ch->port.flags); + clear_bit(ASYNCB_CHECK_CD, &ch->port.flags); else - set_bit(ASYNC_CHECK_CD, &ch->port.flags); + set_bit(ASYNCB_CHECK_CD, &ch->port.flags); mval = ch->m_dtr | ch->m_rts; } /* End CBAUD not detected */ iflag = termios2digi_i(ch, ts->c_iflag); @@ -2114,8 +2114,8 @@ static int pc_ioctl(struct tty_struct *tty, struct file *file, tty_wait_until_sent(tty, 0); } else { /* ldisc lock already held in ioctl */ - if (tty->ldisc.ops->flush_buffer) - tty->ldisc.ops->flush_buffer(tty); + if (tty->ldisc->ops->flush_buffer) + tty->ldisc->ops->flush_buffer(tty); } unlock_kernel(); /* Fall Thru */ @@ -2244,7 +2244,8 @@ static void do_softint(struct work_struct *work) if (test_and_clear_bit(EPCA_EVENT_HANGUP, &ch->event)) { tty_hangup(tty); wake_up_interruptible(&ch->port.open_wait); - clear_bit(ASYNC_NORMAL_ACTIVE, &ch->port.flags); + clear_bit(ASYNCB_NORMAL_ACTIVE, + &ch->port.flags); } } tty_kref_put(tty); diff --git a/drivers/char/ip2/i2lib.c b/drivers/char/ip2/i2lib.c index 0061e18aff6..0d10b89218e 100644 --- a/drivers/char/ip2/i2lib.c +++ b/drivers/char/ip2/i2lib.c @@ -868,11 +868,11 @@ i2Input(i2ChanStrPtr pCh) amountToMove = count; } // Move the first block - pCh->pTTY->ldisc.ops->receive_buf( pCh->pTTY, + pCh->pTTY->ldisc->ops->receive_buf( pCh->pTTY, &(pCh->Ibuf[stripIndex]), NULL, amountToMove ); // If we needed to wrap, do the second data move if (count > amountToMove) { - pCh->pTTY->ldisc.ops->receive_buf( pCh->pTTY, + pCh->pTTY->ldisc->ops->receive_buf( pCh->pTTY, pCh->Ibuf, NULL, count - amountToMove ); } // Bump and wrap the stripIndex all at once by the amount of data read. This diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c index afd9247cf08..517271c762e 100644 --- a/drivers/char/ip2/ip2main.c +++ b/drivers/char/ip2/ip2main.c @@ -1315,8 +1315,8 @@ static inline void isig(int sig, struct tty_struct *tty, int flush) if (tty->pgrp) kill_pgrp(tty->pgrp, sig, 1); if (flush || !L_NOFLSH(tty)) { - if ( tty->ldisc.ops->flush_buffer ) - tty->ldisc.ops->flush_buffer(tty); + if ( tty->ldisc->ops->flush_buffer ) + tty->ldisc->ops->flush_buffer(tty); i2InputFlush( tty->driver_data ); } } diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c index a59eac584d1..4d745a89504 100644 --- a/drivers/char/isicom.c +++ b/drivers/char/isicom.c @@ -329,7 +329,7 @@ static inline void drop_rts(struct isi_port *port) /* card->lock MUST NOT be held */ -static void isicom_raise_dtr_rts(struct tty_port *port) +static void isicom_dtr_rts(struct tty_port *port, int on) { struct isi_port *ip = container_of(port, struct isi_port, port); struct isi_board *card = ip->card; @@ -339,10 +339,17 @@ static void isicom_raise_dtr_rts(struct tty_port *port) if (!lock_card(card)) return; - outw(0x8000 | (channel << card->shift_count) | 0x02, base); - outw(0x0f04, base); - InterruptTheCard(base); - ip->status |= (ISI_DTR | ISI_RTS); + if (on) { + outw(0x8000 | (channel << card->shift_count) | 0x02, base); + outw(0x0f04, base); + InterruptTheCard(base); + ip->status |= (ISI_DTR | ISI_RTS); + } else { + outw(0x8000 | (channel << card->shift_count) | 0x02, base); + outw(0x0C04, base); + InterruptTheCard(base); + ip->status &= ~(ISI_DTR | ISI_RTS); + } unlock_card(card); } @@ -1339,7 +1346,7 @@ static const struct tty_operations isicom_ops = { static const struct tty_port_operations isicom_port_ops = { .carrier_raised = isicom_carrier_raised, - .raise_dtr_rts = isicom_raise_dtr_rts, + .dtr_rts = isicom_dtr_rts, }; static int __devinit reset_card(struct pci_dev *pdev, diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c index fff19f7e29d..e18800c400b 100644 --- a/drivers/char/istallion.c +++ b/drivers/char/istallion.c @@ -1140,14 +1140,14 @@ static int stli_carrier_raised(struct tty_port *port) return (portp->sigs & TIOCM_CD) ? 1 : 0; } -static void stli_raise_dtr_rts(struct tty_port *port) +static void stli_dtr_rts(struct tty_port *port, int on) { struct stliport *portp = container_of(port, struct stliport, port); struct stlibrd *brdp = stli_brds[portp->brdnr]; - stli_mkasysigs(&portp->asig, 1, 1); + stli_mkasysigs(&portp->asig, on, on); if (stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig, sizeof(asysigs_t), 0) < 0) - printk(KERN_WARNING "istallion: dtr raise failed.\n"); + printk(KERN_WARNING "istallion: dtr set failed.\n"); } @@ -4417,7 +4417,7 @@ static const struct tty_operations stli_ops = { static const struct tty_port_operations stli_port_ops = { .carrier_raised = stli_carrier_raised, - .raise_dtr_rts = stli_raise_dtr_rts, + .dtr_rts = stli_dtr_rts, }; /*****************************************************************************/ diff --git a/drivers/char/mem.c b/drivers/char/mem.c index 8f05c38c2f0..f96d0bef855 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -694,6 +694,8 @@ static ssize_t read_zero(struct file * file, char __user * buf, written += chunk - unwritten; if (unwritten) break; + if (signal_pending(current)) + return written ? written : -ERESTARTSYS; buf += chunk; count -= chunk; cond_resched(); diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c index 4a4cab73d0b..65b6ff2442c 100644 --- a/drivers/char/moxa.c +++ b/drivers/char/moxa.c @@ -1184,6 +1184,11 @@ static int moxa_open(struct tty_struct *tty, struct file *filp) return -ENODEV; } + if (port % MAX_PORTS_PER_BOARD >= brd->numPorts) { + mutex_unlock(&moxa_openlock); + return -ENODEV; + } + ch = &brd->ports[port % MAX_PORTS_PER_BOARD]; ch->port.count++; tty->driver_data = ch; diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c index a420e8d437d..9533f43a30b 100644 --- a/drivers/char/mxser.c +++ b/drivers/char/mxser.c @@ -547,14 +547,18 @@ static int mxser_carrier_raised(struct tty_port *port) return (inb(mp->ioaddr + UART_MSR) & UART_MSR_DCD)?1:0; } -static void mxser_raise_dtr_rts(struct tty_port *port) +static void mxser_dtr_rts(struct tty_port *port, int on) { struct mxser_port *mp = container_of(port, struct mxser_port, port); unsigned long flags; spin_lock_irqsave(&mp->slock, flags); - outb(inb(mp->ioaddr + UART_MCR) | - UART_MCR_DTR | UART_MCR_RTS, mp->ioaddr + UART_MCR); + if (on) + outb(inb(mp->ioaddr + UART_MCR) | + UART_MCR_DTR | UART_MCR_RTS, mp->ioaddr + UART_MCR); + else + outb(inb(mp->ioaddr + UART_MCR)&~(UART_MCR_DTR | UART_MCR_RTS), + mp->ioaddr + UART_MCR); spin_unlock_irqrestore(&mp->slock, flags); } @@ -2356,7 +2360,7 @@ static const struct tty_operations mxser_ops = { struct tty_port_operations mxser_port_ops = { .carrier_raised = mxser_carrier_raised, - .raise_dtr_rts = mxser_raise_dtr_rts, + .dtr_rts = mxser_dtr_rts, }; /* @@ -2711,7 +2715,7 @@ static int __init mxser_module_init(void) continue; brd = &mxser_boards[m]; - retval = mxser_get_ISA_conf(!ioaddr[b], brd); + retval = mxser_get_ISA_conf(ioaddr[b], brd); if (retval <= 0) { brd->info = NULL; continue; diff --git a/drivers/char/n_hdlc.c b/drivers/char/n_hdlc.c index bacb3e2872a..461ece591a5 100644 --- a/drivers/char/n_hdlc.c +++ b/drivers/char/n_hdlc.c @@ -342,8 +342,8 @@ static int n_hdlc_tty_open (struct tty_struct *tty) #endif /* Flush any pending characters in the driver and discipline. */ - if (tty->ldisc.ops->flush_buffer) - tty->ldisc.ops->flush_buffer(tty); + if (tty->ldisc->ops->flush_buffer) + tty->ldisc->ops->flush_buffer(tty); tty_driver_flush_buffer(tty); diff --git a/drivers/char/n_tty.c b/drivers/char/n_tty.c index f6f0e4ec2b5..94a5d5020ab 100644 --- a/drivers/char/n_tty.c +++ b/drivers/char/n_tty.c @@ -73,24 +73,6 @@ #define ECHO_OP_SET_CANON_COL 0x81 #define ECHO_OP_ERASE_TAB 0x82 -static inline unsigned char *alloc_buf(void) -{ - gfp_t prio = in_interrupt() ? GFP_ATOMIC : GFP_KERNEL; - - if (PAGE_SIZE != N_TTY_BUF_SIZE) - return kmalloc(N_TTY_BUF_SIZE, prio); - else - return (unsigned char *)__get_free_page(prio); -} - -static inline void free_buf(unsigned char *buf) -{ - if (PAGE_SIZE != N_TTY_BUF_SIZE) - kfree(buf); - else - free_page((unsigned long) buf); -} - static inline int tty_put_user(struct tty_struct *tty, unsigned char x, unsigned char __user *ptr) { @@ -1558,11 +1540,11 @@ static void n_tty_close(struct tty_struct *tty) { n_tty_flush_buffer(tty); if (tty->read_buf) { - free_buf(tty->read_buf); + kfree(tty->read_buf); tty->read_buf = NULL; } if (tty->echo_buf) { - free_buf(tty->echo_buf); + kfree(tty->echo_buf); tty->echo_buf = NULL; } } @@ -1584,17 +1566,16 @@ static int n_tty_open(struct tty_struct *tty) /* These are ugly. Currently a malloc failure here can panic */ if (!tty->read_buf) { - tty->read_buf = alloc_buf(); + tty->read_buf = kzalloc(N_TTY_BUF_SIZE, GFP_KERNEL); if (!tty->read_buf) return -ENOMEM; } if (!tty->echo_buf) { - tty->echo_buf = alloc_buf(); + tty->echo_buf = kzalloc(N_TTY_BUF_SIZE, GFP_KERNEL); + if (!tty->echo_buf) return -ENOMEM; } - memset(tty->read_buf, 0, N_TTY_BUF_SIZE); - memset(tty->echo_buf, 0, N_TTY_BUF_SIZE); reset_buffer_flags(tty); tty->column = 0; n_tty_set_termios(tty, NULL); diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c index 19d79fc5446..77b36488922 100644 --- a/drivers/char/pcmcia/synclink_cs.c +++ b/drivers/char/pcmcia/synclink_cs.c @@ -383,7 +383,7 @@ static void async_mode(MGSLPC_INFO *info); static void tx_timeout(unsigned long context); static int carrier_raised(struct tty_port *port); -static void raise_dtr_rts(struct tty_port *port); +static void dtr_rts(struct tty_port *port, int onoff); #if SYNCLINK_GENERIC_HDLC #define dev_to_port(D) (dev_to_hdlc(D)->priv) @@ -513,7 +513,7 @@ static void ldisc_receive_buf(struct tty_struct *tty, static const struct tty_port_operations mgslpc_port_ops = { .carrier_raised = carrier_raised, - .raise_dtr_rts = raise_dtr_rts + .dtr_rts = dtr_rts }; static int mgslpc_probe(struct pcmcia_device *link) @@ -2528,13 +2528,16 @@ static int carrier_raised(struct tty_port *port) return 0; } -static void raise_dtr_rts(struct tty_port *port) +static void dtr_rts(struct tty_port *port, int onoff) { MGSLPC_INFO *info = container_of(port, MGSLPC_INFO, port); unsigned long flags; spin_lock_irqsave(&info->lock,flags); - info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR; + if (onoff) + info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR; + else + info->serial_signals &= ~SerialSignal_RTS + SerialSignal_DTR; set_signals(info); spin_unlock_irqrestore(&info->lock,flags); } diff --git a/drivers/char/pty.c b/drivers/char/pty.c index 31038a0052a..5acd29e6e04 100644 --- a/drivers/char/pty.c +++ b/drivers/char/pty.c @@ -30,7 +30,6 @@ #include <asm/system.h> -/* These are global because they are accessed in tty_io.c */ #ifdef CONFIG_UNIX98_PTYS static struct tty_driver *ptm_driver; static struct tty_driver *pts_driver; @@ -111,7 +110,7 @@ static int pty_write(struct tty_struct *tty, const unsigned char *buf, c = to->receive_room; if (c > count) c = count; - to->ldisc.ops->receive_buf(to, buf, NULL, c); + to->ldisc->ops->receive_buf(to, buf, NULL, c); return c; } @@ -149,11 +148,11 @@ static int pty_chars_in_buffer(struct tty_struct *tty) int count; /* We should get the line discipline lock for "tty->link" */ - if (!to || !to->ldisc.ops->chars_in_buffer) + if (!to || !to->ldisc->ops->chars_in_buffer) return 0; /* The ldisc must report 0 if no characters available to be read */ - count = to->ldisc.ops->chars_in_buffer(to); + count = to->ldisc->ops->chars_in_buffer(to); if (tty->driver->subtype == PTY_TYPE_SLAVE) return count; @@ -187,8 +186,8 @@ static void pty_flush_buffer(struct tty_struct *tty) if (!to) return; - if (to->ldisc.ops->flush_buffer) - to->ldisc.ops->flush_buffer(to); + if (to->ldisc->ops->flush_buffer) + to->ldisc->ops->flush_buffer(to); if (to->packet) { spin_lock_irqsave(&tty->ctrl_lock, flags); diff --git a/drivers/char/raw.c b/drivers/char/raw.c index 20d90e6a6e5..db32f0e4c7d 100644 --- a/drivers/char/raw.c +++ b/drivers/char/raw.c @@ -71,7 +71,7 @@ static int raw_open(struct inode *inode, struct file *filp) err = bd_claim(bdev, raw_open); if (err) goto out1; - err = set_blocksize(bdev, bdev_hardsect_size(bdev)); + err = set_blocksize(bdev, bdev_logical_block_size(bdev)); if (err) goto out2; filp->f_flags |= O_DIRECT; diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c index f59fc5cea06..63d5b628477 100644 --- a/drivers/char/rocket.c +++ b/drivers/char/rocket.c @@ -872,11 +872,16 @@ static int carrier_raised(struct tty_port *port) return (sGetChanStatusLo(&info->channel) & CD_ACT) ? 1 : 0; } -static void raise_dtr_rts(struct tty_port *port) +static void dtr_rts(struct tty_port *port, int on) { struct r_port *info = container_of(port, struct r_port, port); - sSetDTR(&info->channel); - sSetRTS(&info->channel); + if (on) { + sSetDTR(&info->channel); + sSetRTS(&info->channel); + } else { + sClrDTR(&info->channel); + sClrRTS(&info->channel); + } } /* @@ -934,7 +939,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp) /* * Info->count is now 1; so it's safe to sleep now. */ - if (!test_bit(ASYNC_INITIALIZED, &port->flags)) { + if (!test_bit(ASYNCB_INITIALIZED, &port->flags)) { cp = &info->channel; sSetRxTrigger(cp, TRIG_1); if (sGetChanStatus(cp) & CD_ACT) @@ -958,7 +963,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp) sEnRxFIFO(cp); sEnTransmit(cp); - set_bit(ASYNC_INITIALIZED, &info->port.flags); + set_bit(ASYNCB_INITIALIZED, &info->port.flags); /* * Set up the tty->alt_speed kludge @@ -1641,7 +1646,7 @@ static int rp_write(struct tty_struct *tty, /* Write remaining data into the port's xmit_buf */ while (1) { /* Hung up ? */ - if (!test_bit(ASYNC_NORMAL_ACTIVE, &info->port.flags)) + if (!test_bit(ASYNCB_NORMAL_ACTIVE, &info->port.flags)) goto end; c = min(count, XMIT_BUF_SIZE - info->xmit_cnt - 1); c = min(c, XMIT_BUF_SIZE - info->xmit_head); @@ -2250,7 +2255,7 @@ static const struct tty_operations rocket_ops = { static const struct tty_port_operations rocket_port_ops = { .carrier_raised = carrier_raised, - .raise_dtr_rts = raise_dtr_rts, + .dtr_rts = dtr_rts, }; /* diff --git a/drivers/char/selection.c b/drivers/char/selection.c index cb8ca569896..f97b9e84806 100644 --- a/drivers/char/selection.c +++ b/drivers/char/selection.c @@ -327,7 +327,7 @@ int paste_selection(struct tty_struct *tty) } count = sel_buffer_lth - pasted; count = min(count, tty->receive_room); - tty->ldisc.ops->receive_buf(tty, sel_buffer + pasted, + tty->ldisc->ops->receive_buf(tty, sel_buffer + pasted, NULL, count); pasted += count; } diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c index 2ad813a801d..53e504f41b2 100644 --- a/drivers/char/stallion.c +++ b/drivers/char/stallion.c @@ -772,11 +772,11 @@ static int stl_carrier_raised(struct tty_port *port) return (portp->sigs & TIOCM_CD) ? 1 : 0; } -static void stl_raise_dtr_rts(struct tty_port *port) +static void stl_dtr_rts(struct tty_port *port, int on) { struct stlport *portp = container_of(port, struct stlport, port); /* Takes brd_lock internally */ - stl_setsignals(portp, 1, 1); + stl_setsignals(portp, on, on); } /*****************************************************************************/ @@ -2547,7 +2547,7 @@ static const struct tty_operations stl_ops = { static const struct tty_port_operations stl_port_ops = { .carrier_raised = stl_carrier_raised, - .raise_dtr_rts = stl_raise_dtr_rts, + .dtr_rts = stl_dtr_rts, }; /*****************************************************************************/ diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c index afd0b26ca05..afded3a2379 100644 --- a/drivers/char/synclink.c +++ b/drivers/char/synclink.c @@ -3247,13 +3247,16 @@ static int carrier_raised(struct tty_port *port) return (info->serial_signals & SerialSignal_DCD) ? 1 : 0; } -static void raise_dtr_rts(struct tty_port *port) +static void dtr_rts(struct tty_port *port, int on) { struct mgsl_struct *info = container_of(port, struct mgsl_struct, port); unsigned long flags; spin_lock_irqsave(&info->irq_spinlock,flags); - info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR; + if (on) + info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR; + else + info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR); usc_set_serial_signals(info); spin_unlock_irqrestore(&info->irq_spinlock,flags); } @@ -4258,7 +4261,7 @@ static void mgsl_add_device( struct mgsl_struct *info ) static const struct tty_port_operations mgsl_port_ops = { .carrier_raised = carrier_raised, - .raise_dtr_rts = raise_dtr_rts, + .dtr_rts = dtr_rts, }; diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c index 5e256494686..1386625fc4c 100644 --- a/drivers/char/synclink_gt.c +++ b/drivers/char/synclink_gt.c @@ -214,6 +214,7 @@ struct slgt_desc #define set_desc_next(a,b) (a).next = cpu_to_le32((unsigned int)(b)) #define set_desc_count(a,b)(a).count = cpu_to_le16((unsigned short)(b)) #define set_desc_eof(a,b) (a).status = cpu_to_le16((b) ? (le16_to_cpu((a).status) | BIT0) : (le16_to_cpu((a).status) & ~BIT0)) +#define set_desc_status(a, b) (a).status = cpu_to_le16((unsigned short)(b)) #define desc_count(a) (le16_to_cpu((a).count)) #define desc_status(a) (le16_to_cpu((a).status)) #define desc_complete(a) (le16_to_cpu((a).status) & BIT15) @@ -297,6 +298,7 @@ struct slgt_info { u32 max_frame_size; /* as set by device config */ unsigned int rbuf_fill_level; + unsigned int rx_pio; unsigned int if_mode; unsigned int base_clock; @@ -331,6 +333,8 @@ struct slgt_info { struct slgt_desc *rbufs; unsigned int rbuf_current; unsigned int rbuf_index; + unsigned int rbuf_fill_index; + unsigned short rbuf_fill_count; unsigned int tbuf_count; struct slgt_desc *tbufs; @@ -2110,6 +2114,40 @@ static void ri_change(struct slgt_info *info, unsigned short status) info->pending_bh |= BH_STATUS; } +static void isr_rxdata(struct slgt_info *info) +{ + unsigned int count = info->rbuf_fill_count; + unsigned int i = info->rbuf_fill_index; + unsigned short reg; + + while (rd_reg16(info, SSR) & IRQ_RXDATA) { + reg = rd_reg16(info, RDR); + DBGISR(("isr_rxdata %s RDR=%04X\n", info->device_name, reg)); + if (desc_complete(info->rbufs[i])) { + /* all buffers full */ + rx_stop(info); + info->rx_restart = 1; + continue; + } + info->rbufs[i].buf[count++] = (unsigned char)reg; + /* async mode saves status byte to buffer for each data byte */ + if (info->params.mode == MGSL_MODE_ASYNC) + info->rbufs[i].buf[count++] = (unsigned char)(reg >> 8); + if (count == info->rbuf_fill_level || (reg & BIT10)) { + /* buffer full or end of frame */ + set_desc_count(info->rbufs[i], count); + set_desc_status(info->rbufs[i], BIT15 | (reg >> 8)); + info->rbuf_fill_count = count = 0; + if (++i == info->rbuf_count) + i = 0; + info->pending_bh |= BH_RECEIVE; + } + } + + info->rbuf_fill_index = i; + info->rbuf_fill_count = count; +} + static void isr_serial(struct slgt_info *info) { unsigned short status = rd_reg16(info, SSR); @@ -2125,6 +2163,8 @@ static void isr_serial(struct slgt_info *info) if (info->tx_count) isr_txeom(info, status); } + if (info->rx_pio && (status & IRQ_RXDATA)) + isr_rxdata(info); if ((status & IRQ_RXBREAK) && (status & RXBREAK)) { info->icount.brk++; /* process break detection if tty control allows */ @@ -2141,7 +2181,8 @@ static void isr_serial(struct slgt_info *info) } else { if (status & (IRQ_TXIDLE + IRQ_TXUNDER)) isr_txeom(info, status); - + if (info->rx_pio && (status & IRQ_RXDATA)) + isr_rxdata(info); if (status & IRQ_RXIDLE) { if (status & RXIDLE) info->icount.rxidle++; @@ -2642,6 +2683,10 @@ static int rx_enable(struct slgt_info *info, int enable) return -EINVAL; } info->rbuf_fill_level = rbuf_fill_level; + if (rbuf_fill_level < 128) + info->rx_pio = 1; /* PIO mode */ + else + info->rx_pio = 0; /* DMA mode */ rx_stop(info); /* restart receiver to use new fill level */ } @@ -3099,13 +3144,16 @@ static int carrier_raised(struct tty_port *port) return (info->signals & SerialSignal_DCD) ? 1 : 0; } -static void raise_dtr_rts(struct tty_port *port) +static void dtr_rts(struct tty_port *port, int on) { unsigned long flags; struct slgt_info *info = container_of(port, struct slgt_info, port); spin_lock_irqsave(&info->lock,flags); - info->signals |= SerialSignal_RTS + SerialSignal_DTR; + if (on) + info->signals |= SerialSignal_RTS + SerialSignal_DTR; + else + info->signals &= ~(SerialSignal_RTS + SerialSignal_DTR); set_signals(info); spin_unlock_irqrestore(&info->lock,flags); } @@ -3419,7 +3467,7 @@ static void add_device(struct slgt_info *info) static const struct tty_port_operations slgt_port_ops = { .carrier_raised = carrier_raised, - .raise_dtr_rts = raise_dtr_rts, + .dtr_rts = dtr_rts, }; /* @@ -3841,15 +3889,27 @@ static void rx_start(struct slgt_info *info) rdma_reset(info); reset_rbufs(info); - /* set 1st descriptor address */ - wr_reg32(info, RDDAR, info->rbufs[0].pdesc); - - if (info->params.mode != MGSL_MODE_ASYNC) { - /* enable rx DMA and DMA interrupt */ - wr_reg32(info, RDCSR, (BIT2 + BIT0)); + if (info->rx_pio) { + /* rx request when rx FIFO not empty */ + wr_reg16(info, SCR, (unsigned short)(rd_reg16(info, SCR) & ~BIT14)); + slgt_irq_on(info, IRQ_RXDATA); + if (info->params.mode == MGSL_MODE_ASYNC) { + /* enable saving of rx status */ + wr_reg32(info, RDCSR, BIT6); + } } else { - /* enable saving of rx status, rx DMA and DMA interrupt */ - wr_reg32(info, RDCSR, (BIT6 + BIT2 + BIT0)); + /* rx request when rx FIFO half full */ + wr_reg16(info, SCR, (unsigned short)(rd_reg16(info, SCR) | BIT14)); + /* set 1st descriptor address */ + wr_reg32(info, RDDAR, info->rbufs[0].pdesc); + + if (info->params.mode != MGSL_MODE_ASYNC) { + /* enable rx DMA and DMA interrupt */ + wr_reg32(info, RDCSR, (BIT2 + BIT0)); + } else { + /* enable saving of rx status, rx DMA and DMA interrupt */ + wr_reg32(info, RDCSR, (BIT6 + BIT2 + BIT0)); + } } slgt_irq_on(info, IRQ_RXOVER); @@ -4467,6 +4527,8 @@ static void free_rbufs(struct slgt_info *info, unsigned int i, unsigned int last static void reset_rbufs(struct slgt_info *info) { free_rbufs(info, 0, info->rbuf_count - 1); + info->rbuf_fill_index = 0; + info->rbuf_fill_count = 0; } /* diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c index 26de60efe4b..6f727e3c53a 100644 --- a/drivers/char/synclinkmp.c +++ b/drivers/char/synclinkmp.c @@ -3277,13 +3277,16 @@ static int carrier_raised(struct tty_port *port) return (info->serial_signals & SerialSignal_DCD) ? 1 : 0; } -static void raise_dtr_rts(struct tty_port *port) +static void dtr_rts(struct tty_port *port, int on) { SLMP_INFO *info = container_of(port, SLMP_INFO, port); unsigned long flags; spin_lock_irqsave(&info->lock,flags); - info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR; + if (on) + info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR; + else + info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR); set_signals(info); spin_unlock_irqrestore(&info->lock,flags); } @@ -3746,7 +3749,7 @@ static void add_device(SLMP_INFO *info) static const struct tty_port_operations port_ops = { .carrier_raised = carrier_raised, - .raise_dtr_rts = raise_dtr_rts, + .dtr_rts = dtr_rts, }; /* Allocate and initialize a device instance structure diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c index d6a807f4077..39a05b5fa9c 100644 --- a/drivers/char/sysrq.c +++ b/drivers/char/sysrq.c @@ -25,6 +25,7 @@ #include <linux/kbd_kern.h> #include <linux/proc_fs.h> #include <linux/quotaops.h> +#include <linux/perf_counter.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/suspend.h> @@ -243,6 +244,7 @@ static void sysrq_handle_showregs(int key, struct tty_struct *tty) struct pt_regs *regs = get_irq_regs(); if (regs) show_regs(regs); + perf_counter_print_debug(); } static struct sysrq_key_op sysrq_showregs_op = { .handler = sysrq_handle_showregs, diff --git a/drivers/char/tty_audit.c b/drivers/char/tty_audit.c index 55ba6f14288..ac16fbec72d 100644 --- a/drivers/char/tty_audit.c +++ b/drivers/char/tty_audit.c @@ -29,10 +29,7 @@ static struct tty_audit_buf *tty_audit_buf_alloc(int major, int minor, buf = kmalloc(sizeof(*buf), GFP_KERNEL); if (!buf) goto err; - if (PAGE_SIZE != N_TTY_BUF_SIZE) - buf->data = kmalloc(N_TTY_BUF_SIZE, GFP_KERNEL); - else - buf->data = (unsigned char *)__get_free_page(GFP_KERNEL); + buf->data = kmalloc(N_TTY_BUF_SIZE, GFP_KERNEL); if (!buf->data) goto err_buf; atomic_set(&buf->count, 1); @@ -52,10 +49,7 @@ err: static void tty_audit_buf_free(struct tty_audit_buf *buf) { WARN_ON(buf->valid != 0); - if (PAGE_SIZE != N_TTY_BUF_SIZE) - kfree(buf->data); - else - free_page((unsigned long)buf->data); + kfree(buf->data); kfree(buf); } diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index 66b99a2049e..939e198d767 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -295,7 +295,7 @@ struct tty_driver *tty_find_polling_driver(char *name, int *line) struct tty_driver *p, *res = NULL; int tty_line = 0; int len; - char *str; + char *str, *stp; for (str = name; *str; str++) if ((*str >= '0' && *str <= '9') || *str == ',') @@ -311,13 +311,14 @@ struct tty_driver *tty_find_polling_driver(char *name, int *line) list_for_each_entry(p, &tty_drivers, tty_drivers) { if (strncmp(name, p->name, len) != 0) continue; - if (*str == ',') - str++; - if (*str == '\0') - str = NULL; + stp = str; + if (*stp == ',') + stp++; + if (*stp == '\0') + stp = NULL; if (tty_line >= 0 && tty_line <= p->num && p->ops && - p->ops->poll_init && !p->ops->poll_init(p, tty_line, str)) { + p->ops->poll_init && !p->ops->poll_init(p, tty_line, stp)) { res = tty_driver_kref_get(p); *line = tty_line; break; @@ -470,43 +471,6 @@ void tty_wakeup(struct tty_struct *tty) EXPORT_SYMBOL_GPL(tty_wakeup); /** - * tty_ldisc_flush - flush line discipline queue - * @tty: tty - * - * Flush the line discipline queue (if any) for this tty. If there - * is no line discipline active this is a no-op. - */ - -void tty_ldisc_flush(struct tty_struct *tty) -{ - struct tty_ldisc *ld = tty_ldisc_ref(tty); - if (ld) { - if (ld->ops->flush_buffer) - ld->ops->flush_buffer(tty); - tty_ldisc_deref(ld); - } - tty_buffer_flush(tty); -} - -EXPORT_SYMBOL_GPL(tty_ldisc_flush); - -/** - * tty_reset_termios - reset terminal state - * @tty: tty to reset - * - * Restore a terminal to the driver default state - */ - -static void tty_reset_termios(struct tty_struct *tty) -{ - mutex_lock(&tty->termios_mutex); - *tty->termios = tty->driver->init_termios; - tty->termios->c_ispeed = tty_termios_input_baud_rate(tty->termios); - tty->termios->c_ospeed = tty_termios_baud_rate(tty->termios); - mutex_unlock(&tty->termios_mutex); -} - -/** * do_tty_hangup - actual handler for hangup events * @work: tty device * @@ -535,7 +499,6 @@ static void do_tty_hangup(struct work_struct *work) struct file *cons_filp = NULL; struct file *filp, *f = NULL; struct task_struct *p; - struct tty_ldisc *ld; int closecount = 0, n; unsigned long flags; int refs = 0; @@ -566,40 +529,8 @@ static void do_tty_hangup(struct work_struct *work) filp->f_op = &hung_up_tty_fops; } file_list_unlock(); - /* - * FIXME! What are the locking issues here? This may me overdoing - * things... This question is especially important now that we've - * removed the irqlock. - */ - ld = tty_ldisc_ref(tty); - if (ld != NULL) { - /* We may have no line discipline at this point */ - if (ld->ops->flush_buffer) - ld->ops->flush_buffer(tty); - tty_driver_flush_buffer(tty); - if ((test_bit(TTY_DO_WRITE_WAKEUP, &tty->flags)) && - ld->ops->write_wakeup) - ld->ops->write_wakeup(tty); - if (ld->ops->hangup) - ld->ops->hangup(tty); - } - /* - * FIXME: Once we trust the LDISC code better we can wait here for - * ldisc completion and fix the driver call race - */ - wake_up_interruptible_poll(&tty->write_wait, POLLOUT); - wake_up_interruptible_poll(&tty->read_wait, POLLIN); - /* - * Shutdown the current line discipline, and reset it to - * N_TTY. - */ - if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS) - tty_reset_termios(tty); - /* Defer ldisc switch */ - /* tty_deferred_ldisc_switch(N_TTY); - This should get done automatically when the port closes and - tty_release is called */ + tty_ldisc_hangup(tty); read_lock(&tasklist_lock); if (tty->session) { @@ -628,12 +559,15 @@ static void do_tty_hangup(struct work_struct *work) read_unlock(&tasklist_lock); spin_lock_irqsave(&tty->ctrl_lock, flags); - tty->flags = 0; + clear_bit(TTY_THROTTLED, &tty->flags); + clear_bit(TTY_PUSH, &tty->flags); + clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags); put_pid(tty->session); put_pid(tty->pgrp); tty->session = NULL; tty->pgrp = NULL; tty->ctrl_status = 0; + set_bit(TTY_HUPPED, &tty->flags); spin_unlock_irqrestore(&tty->ctrl_lock, flags); /* Account for the p->signal references we killed */ @@ -659,10 +593,7 @@ static void do_tty_hangup(struct work_struct *work) * can't yet guarantee all that. */ set_bit(TTY_HUPPED, &tty->flags); - if (ld) { - tty_ldisc_enable(tty); - tty_ldisc_deref(ld); - } + tty_ldisc_enable(tty); unlock_kernel(); if (f) fput(f); @@ -2480,6 +2411,24 @@ static int tty_tiocmset(struct tty_struct *tty, struct file *file, unsigned int return tty->ops->tiocmset(tty, file, set, clear); } +struct tty_struct *tty_pair_get_tty(struct tty_struct *tty) +{ + if (tty->driver->type == TTY_DRIVER_TYPE_PTY && + tty->driver->subtype == PTY_TYPE_MASTER) + tty = tty->link; + return tty; +} +EXPORT_SYMBOL(tty_pair_get_tty); + +struct tty_struct *tty_pair_get_pty(struct tty_struct *tty) +{ + if (tty->driver->type == TTY_DRIVER_TYPE_PTY && + tty->driver->subtype == PTY_TYPE_MASTER) + return tty; + return tty->link; +} +EXPORT_SYMBOL(tty_pair_get_pty); + /* * Split this up, as gcc can choke on it otherwise.. */ @@ -2495,11 +2444,7 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if (tty_paranoia_check(tty, inode, "tty_ioctl")) return -EINVAL; - real_tty = tty; - if (tty->driver->type == TTY_DRIVER_TYPE_PTY && - tty->driver->subtype == PTY_TYPE_MASTER) - real_tty = tty->link; - + real_tty = tty_pair_get_tty(tty); /* * Factor out some common prep work @@ -2555,7 +2500,7 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case TIOCGSID: return tiocgsid(tty, real_tty, p); case TIOCGETD: - return put_user(tty->ldisc.ops->num, (int __user *)p); + return put_user(tty->ldisc->ops->num, (int __user *)p); case TIOCSETD: return tiocsetd(tty, p); /* @@ -2770,6 +2715,7 @@ void initialize_tty_struct(struct tty_struct *tty, tty->buf.head = tty->buf.tail = NULL; tty_buffer_init(tty); mutex_init(&tty->termios_mutex); + mutex_init(&tty->ldisc_mutex); init_waitqueue_head(&tty->write_wait); init_waitqueue_head(&tty->read_wait); INIT_WORK(&tty->hangup_work, do_tty_hangup); diff --git a/drivers/char/tty_ioctl.c b/drivers/char/tty_ioctl.c index 6f4c7d0a53b..8116bb1c8f8 100644 --- a/drivers/char/tty_ioctl.c +++ b/drivers/char/tty_ioctl.c @@ -97,14 +97,19 @@ EXPORT_SYMBOL(tty_driver_flush_buffer); * @tty: terminal * * Indicate that a tty should stop transmitting data down the stack. + * Takes the termios mutex to protect against parallel throttle/unthrottle + * and also to ensure the driver can consistently reference its own + * termios data at this point when implementing software flow control. */ void tty_throttle(struct tty_struct *tty) { + mutex_lock(&tty->termios_mutex); /* check TTY_THROTTLED first so it indicates our state */ if (!test_and_set_bit(TTY_THROTTLED, &tty->flags) && tty->ops->throttle) tty->ops->throttle(tty); + mutex_unlock(&tty->termios_mutex); } EXPORT_SYMBOL(tty_throttle); @@ -113,13 +118,21 @@ EXPORT_SYMBOL(tty_throttle); * @tty: terminal * * Indicate that a tty may continue transmitting data down the stack. + * Takes the termios mutex to protect against parallel throttle/unthrottle + * and also to ensure the driver can consistently reference its own + * termios data at this point when implementing software flow control. + * + * Drivers should however remember that the stack can issue a throttle, + * then change flow control method, then unthrottle. */ void tty_unthrottle(struct tty_struct *tty) { + mutex_lock(&tty->termios_mutex); if (test_and_clear_bit(TTY_THROTTLED, &tty->flags) && tty->ops->unthrottle) tty->ops->unthrottle(tty); + mutex_unlock(&tty->termios_mutex); } EXPORT_SYMBOL(tty_unthrottle); @@ -613,9 +626,25 @@ static int set_termios(struct tty_struct *tty, void __user *arg, int opt) return 0; } +static void copy_termios(struct tty_struct *tty, struct ktermios *kterm) +{ + mutex_lock(&tty->termios_mutex); + memcpy(kterm, tty->termios, sizeof(struct ktermios)); + mutex_unlock(&tty->termios_mutex); +} + +static void copy_termios_locked(struct tty_struct *tty, struct ktermios *kterm) +{ + mutex_lock(&tty->termios_mutex); + memcpy(kterm, tty->termios_locked, sizeof(struct ktermios)); + mutex_unlock(&tty->termios_mutex); +} + static int get_termio(struct tty_struct *tty, struct termio __user *termio) { - if (kernel_termios_to_user_termio(termio, tty->termios)) + struct ktermios kterm; + copy_termios(tty, &kterm); + if (kernel_termios_to_user_termio(termio, &kterm)) return -EFAULT; return 0; } @@ -917,6 +946,8 @@ int tty_mode_ioctl(struct tty_struct *tty, struct file *file, struct tty_struct *real_tty; void __user *p = (void __user *)arg; int ret = 0; + struct ktermios kterm; + struct termiox ktermx; if (tty->driver->type == TTY_DRIVER_TYPE_PTY && tty->driver->subtype == PTY_TYPE_MASTER) @@ -952,23 +983,20 @@ int tty_mode_ioctl(struct tty_struct *tty, struct file *file, return set_termios(real_tty, p, TERMIOS_OLD); #ifndef TCGETS2 case TCGETS: - mutex_lock(&real_tty->termios_mutex); - if (kernel_termios_to_user_termios((struct termios __user *)arg, real_tty->termios)) + copy_termios(real_tty, &kterm); + if (kernel_termios_to_user_termios((struct termios __user *)arg, &kterm)) ret = -EFAULT; - mutex_unlock(&real_tty->termios_mutex); return ret; #else case TCGETS: - mutex_lock(&real_tty->termios_mutex); - if (kernel_termios_to_user_termios_1((struct termios __user *)arg, real_tty->termios)) + copy_termios(real_tty, &kterm); + if (kernel_termios_to_user_termios_1((struct termios __user *)arg, &kterm)) ret = -EFAULT; - mutex_unlock(&real_tty->termios_mutex); return ret; case TCGETS2: - mutex_lock(&real_tty->termios_mutex); - if (kernel_termios_to_user_termios((struct termios2 __user *)arg, real_tty->termios)) + copy_termios(real_tty, &kterm); + if (kernel_termios_to_user_termios((struct termios2 __user *)arg, &kterm)) ret = -EFAULT; - mutex_unlock(&real_tty->termios_mutex); return ret; case TCSETSF2: return set_termios(real_tty, p, TERMIOS_FLUSH | TERMIOS_WAIT); @@ -987,34 +1015,36 @@ int tty_mode_ioctl(struct tty_struct *tty, struct file *file, return set_termios(real_tty, p, TERMIOS_TERMIO); #ifndef TCGETS2 case TIOCGLCKTRMIOS: - mutex_lock(&real_tty->termios_mutex); - if (kernel_termios_to_user_termios((struct termios __user *)arg, real_tty->termios_locked)) + copy_termios_locked(real_tty, &kterm); + if (kernel_termios_to_user_termios((struct termios __user *)arg, &kterm)) ret = -EFAULT; - mutex_unlock(&real_tty->termios_mutex); return ret; case TIOCSLCKTRMIOS: if (!capable(CAP_SYS_ADMIN)) return -EPERM; - mutex_lock(&real_tty->termios_mutex); - if (user_termios_to_kernel_termios(real_tty->termios_locked, + copy_termios_locked(real_tty, &kterm); + if (user_termios_to_kernel_termios(&kterm, (struct termios __user *) arg)) - ret = -EFAULT; + return -EFAULT; + mutex_lock(&real_tty->termios_mutex); + memcpy(real_tty->termios_locked, &kterm, sizeof(struct ktermios)); mutex_unlock(&real_tty->termios_mutex); - return ret; + return 0; #else case TIOCGLCKTRMIOS: - mutex_lock(&real_tty->termios_mutex); - if (kernel_termios_to_user_termios_1((struct termios __user *)arg, real_tty->termios_locked)) + copy_termios_locked(real_tty, &kterm); + if (kernel_termios_to_user_termios_1((struct termios __user *)arg, &kterm)) ret = -EFAULT; - mutex_unlock(&real_tty->termios_mutex); return ret; case TIOCSLCKTRMIOS: if (!capable(CAP_SYS_ADMIN)) - ret = -EPERM; - mutex_lock(&real_tty->termios_mutex); - if (user_termios_to_kernel_termios_1(real_tty->termios_locked, + return -EPERM; + copy_termios_locked(real_tty, &kterm); + if (user_termios_to_kernel_termios_1(&kterm, (struct termios __user *) arg)) - ret = -EFAULT; + return -EFAULT; + mutex_lock(&real_tty->termios_mutex); + memcpy(real_tty->termios_locked, &kterm, sizeof(struct ktermios)); mutex_unlock(&real_tty->termios_mutex); return ret; #endif @@ -1023,9 +1053,10 @@ int tty_mode_ioctl(struct tty_struct *tty, struct file *file, if (real_tty->termiox == NULL) return -EINVAL; mutex_lock(&real_tty->termios_mutex); - if (copy_to_user(p, real_tty->termiox, sizeof(struct termiox))) - ret = -EFAULT; + memcpy(&ktermx, real_tty->termiox, sizeof(struct termiox)); mutex_unlock(&real_tty->termios_mutex); + if (copy_to_user(p, &ktermx, sizeof(struct termiox))) + ret = -EFAULT; return ret; case TCSETX: return set_termiox(real_tty, p, 0); @@ -1035,10 +1066,9 @@ int tty_mode_ioctl(struct tty_struct *tty, struct file *file, return set_termiox(real_tty, p, TERMIOS_FLUSH); #endif case TIOCGSOFTCAR: - mutex_lock(&real_tty->termios_mutex); - ret = put_user(C_CLOCAL(real_tty) ? 1 : 0, + copy_termios(real_tty, &kterm); + ret = put_user((kterm.c_cflag & CLOCAL) ? 1 : 0, (int __user *)arg); - mutex_unlock(&real_tty->termios_mutex); return ret; case TIOCSSOFTCAR: if (get_user(arg, (unsigned int __user *) arg)) diff --git a/drivers/char/tty_ldisc.c b/drivers/char/tty_ldisc.c index f78f5b0127a..39c8f86dedd 100644 --- a/drivers/char/tty_ldisc.c +++ b/drivers/char/tty_ldisc.c @@ -115,19 +115,22 @@ EXPORT_SYMBOL(tty_unregister_ldisc); /** * tty_ldisc_try_get - try and reference an ldisc * @disc: ldisc number - * @ld: tty ldisc structure to complete * * Attempt to open and lock a line discipline into place. Return - * the line discipline refcounted and assigned in ld. On an error - * report the error code back + * the line discipline refcounted or an error. */ -static int tty_ldisc_try_get(int disc, struct tty_ldisc *ld) +static struct tty_ldisc *tty_ldisc_try_get(int disc) { unsigned long flags; + struct tty_ldisc *ld; struct tty_ldisc_ops *ldops; int err = -EINVAL; - + + ld = kmalloc(sizeof(struct tty_ldisc), GFP_KERNEL); + if (ld == NULL) + return ERR_PTR(-ENOMEM); + spin_lock_irqsave(&tty_ldisc_lock, flags); ld->ops = NULL; ldops = tty_ldiscs[disc]; @@ -140,17 +143,19 @@ static int tty_ldisc_try_get(int disc, struct tty_ldisc *ld) /* lock it */ ldops->refcount++; ld->ops = ldops; + ld->refcount = 0; err = 0; } } spin_unlock_irqrestore(&tty_ldisc_lock, flags); - return err; + if (err) + return ERR_PTR(err); + return ld; } /** * tty_ldisc_get - take a reference to an ldisc * @disc: ldisc number - * @ld: tty line discipline structure to use * * Takes a reference to a line discipline. Deals with refcounts and * module locking counts. Returns NULL if the discipline is not available. @@ -161,52 +166,54 @@ static int tty_ldisc_try_get(int disc, struct tty_ldisc *ld) * takes tty_ldisc_lock to guard against ldisc races */ -static int tty_ldisc_get(int disc, struct tty_ldisc *ld) +static struct tty_ldisc *tty_ldisc_get(int disc) { - int err; + struct tty_ldisc *ld; if (disc < N_TTY || disc >= NR_LDISCS) - return -EINVAL; - err = tty_ldisc_try_get(disc, ld); - if (err < 0) { + return ERR_PTR(-EINVAL); + ld = tty_ldisc_try_get(disc); + if (IS_ERR(ld)) { request_module("tty-ldisc-%d", disc); - err = tty_ldisc_try_get(disc, ld); + ld = tty_ldisc_try_get(disc); } - return err; + return ld; } /** * tty_ldisc_put - drop ldisc reference - * @disc: ldisc number + * @ld: ldisc * * Drop a reference to a line discipline. Manage refcounts and - * module usage counts + * module usage counts. Free the ldisc once the recount hits zero. * * Locking: * takes tty_ldisc_lock to guard against ldisc races */ -static void tty_ldisc_put(struct tty_ldisc_ops *ld) +static void tty_ldisc_put(struct tty_ldisc *ld) { unsigned long flags; - int disc = ld->num; + int disc = ld->ops->num; + struct tty_ldisc_ops *ldo; BUG_ON(disc < N_TTY || disc >= NR_LDISCS); spin_lock_irqsave(&tty_ldisc_lock, flags); - ld = tty_ldiscs[disc]; - BUG_ON(ld->refcount == 0); - ld->refcount--; - module_put(ld->owner); + ldo = tty_ldiscs[disc]; + BUG_ON(ldo->refcount == 0); + ldo->refcount--; + module_put(ldo->owner); spin_unlock_irqrestore(&tty_ldisc_lock, flags); + kfree(ld); } -static void * tty_ldiscs_seq_start(struct seq_file *m, loff_t *pos) +static void *tty_ldiscs_seq_start(struct seq_file *m, loff_t *pos) { return (*pos < NR_LDISCS) ? pos : NULL; } -static void * tty_ldiscs_seq_next(struct seq_file *m, void *v, loff_t *pos) +static void *tty_ldiscs_seq_next(struct seq_file *m, void *v, loff_t *pos) { (*pos)++; return (*pos < NR_LDISCS) ? pos : NULL; @@ -219,12 +226,13 @@ static void tty_ldiscs_seq_stop(struct seq_file *m, void *v) static int tty_ldiscs_seq_show(struct seq_file *m, void *v) { int i = *(loff_t *)v; - struct tty_ldisc ld; - - if (tty_ldisc_get(i, &ld) < 0) + struct tty_ldisc *ld; + + ld = tty_ldisc_try_get(i); + if (IS_ERR(ld)) return 0; - seq_printf(m, "%-10s %2d\n", ld.ops->name ? ld.ops->name : "???", i); - tty_ldisc_put(ld.ops); + seq_printf(m, "%-10s %2d\n", ld->ops->name ? ld->ops->name : "???", i); + tty_ldisc_put(ld); return 0; } @@ -263,8 +271,7 @@ const struct file_operations tty_ldiscs_proc_fops = { static void tty_ldisc_assign(struct tty_struct *tty, struct tty_ldisc *ld) { - ld->refcount = 0; - tty->ldisc = *ld; + tty->ldisc = ld; } /** @@ -286,7 +293,7 @@ static int tty_ldisc_try(struct tty_struct *tty) int ret = 0; spin_lock_irqsave(&tty_ldisc_lock, flags); - ld = &tty->ldisc; + ld = tty->ldisc; if (test_bit(TTY_LDISC, &tty->flags)) { ld->refcount++; ret = 1; @@ -315,10 +322,9 @@ struct tty_ldisc *tty_ldisc_ref_wait(struct tty_struct *tty) { /* wait_event is a macro */ wait_event(tty_ldisc_wait, tty_ldisc_try(tty)); - WARN_ON(tty->ldisc.refcount == 0); - return &tty->ldisc; + WARN_ON(tty->ldisc->refcount == 0); + return tty->ldisc; } - EXPORT_SYMBOL_GPL(tty_ldisc_ref_wait); /** @@ -335,10 +341,9 @@ EXPORT_SYMBOL_GPL(tty_ldisc_ref_wait); struct tty_ldisc *tty_ldisc_ref(struct tty_struct *tty) { if (tty_ldisc_try(tty)) - return &tty->ldisc; + return tty->ldisc; return NULL; } - EXPORT_SYMBOL_GPL(tty_ldisc_ref); /** @@ -366,7 +371,6 @@ void tty_ldisc_deref(struct tty_ldisc *ld) wake_up(&tty_ldisc_wait); spin_unlock_irqrestore(&tty_ldisc_lock, flags); } - EXPORT_SYMBOL_GPL(tty_ldisc_deref); /** @@ -389,6 +393,26 @@ void tty_ldisc_enable(struct tty_struct *tty) } /** + * tty_ldisc_flush - flush line discipline queue + * @tty: tty + * + * Flush the line discipline queue (if any) for this tty. If there + * is no line discipline active this is a no-op. + */ + +void tty_ldisc_flush(struct tty_struct *tty) +{ + struct tty_ldisc *ld = tty_ldisc_ref(tty); + if (ld) { + if (ld->ops->flush_buffer) + ld->ops->flush_buffer(tty); + tty_ldisc_deref(ld); + } + tty_buffer_flush(tty); +} +EXPORT_SYMBOL_GPL(tty_ldisc_flush); + +/** * tty_set_termios_ldisc - set ldisc field * @tty: tty structure * @num: line discipline number @@ -407,6 +431,39 @@ static void tty_set_termios_ldisc(struct tty_struct *tty, int num) mutex_unlock(&tty->termios_mutex); } +/** + * tty_ldisc_open - open a line discipline + * @tty: tty we are opening the ldisc on + * @ld: discipline to open + * + * A helper opening method. Also a convenient debugging and check + * point. + */ + +static int tty_ldisc_open(struct tty_struct *tty, struct tty_ldisc *ld) +{ + WARN_ON(test_and_set_bit(TTY_LDISC_OPEN, &tty->flags)); + if (ld->ops->open) + return ld->ops->open(tty); + return 0; +} + +/** + * tty_ldisc_close - close a line discipline + * @tty: tty we are opening the ldisc on + * @ld: discipline to close + * + * A helper close method. Also a convenient debugging and check + * point. + */ + +static void tty_ldisc_close(struct tty_struct *tty, struct tty_ldisc *ld) +{ + WARN_ON(!test_bit(TTY_LDISC_OPEN, &tty->flags)); + clear_bit(TTY_LDISC_OPEN, &tty->flags); + if (ld->ops->close) + ld->ops->close(tty); +} /** * tty_ldisc_restore - helper for tty ldisc change @@ -420,66 +477,136 @@ static void tty_set_termios_ldisc(struct tty_struct *tty, int num) static void tty_ldisc_restore(struct tty_struct *tty, struct tty_ldisc *old) { char buf[64]; - struct tty_ldisc new_ldisc; + struct tty_ldisc *new_ldisc; + int r; /* There is an outstanding reference here so this is safe */ - tty_ldisc_get(old->ops->num, old); + old = tty_ldisc_get(old->ops->num); + WARN_ON(IS_ERR(old)); tty_ldisc_assign(tty, old); tty_set_termios_ldisc(tty, old->ops->num); - if (old->ops->open && (old->ops->open(tty) < 0)) { - tty_ldisc_put(old->ops); + if (tty_ldisc_open(tty, old) < 0) { + tty_ldisc_put(old); /* This driver is always present */ - if (tty_ldisc_get(N_TTY, &new_ldisc) < 0) + new_ldisc = tty_ldisc_get(N_TTY); + if (IS_ERR(new_ldisc)) panic("n_tty: get"); - tty_ldisc_assign(tty, &new_ldisc); + tty_ldisc_assign(tty, new_ldisc); tty_set_termios_ldisc(tty, N_TTY); - if (new_ldisc.ops->open) { - int r = new_ldisc.ops->open(tty); - if (r < 0) - panic("Couldn't open N_TTY ldisc for " - "%s --- error %d.", - tty_name(tty, buf), r); - } + r = tty_ldisc_open(tty, new_ldisc); + if (r < 0) + panic("Couldn't open N_TTY ldisc for " + "%s --- error %d.", + tty_name(tty, buf), r); } } /** + * tty_ldisc_halt - shut down the line discipline + * @tty: tty device + * + * Shut down the line discipline and work queue for this tty device. + * The TTY_LDISC flag being cleared ensures no further references can + * be obtained while the delayed work queue halt ensures that no more + * data is fed to the ldisc. + * + * In order to wait for any existing references to complete see + * tty_ldisc_wait_idle. + */ + +static int tty_ldisc_halt(struct tty_struct *tty) +{ + clear_bit(TTY_LDISC, &tty->flags); + return cancel_delayed_work(&tty->buf.work); +} + +/** + * tty_ldisc_wait_idle - wait for the ldisc to become idle + * @tty: tty to wait for + * + * Wait for the line discipline to become idle. The discipline must + * have been halted for this to guarantee it remains idle. + * + * tty_ldisc_lock protects the ref counts currently. + */ + +static int tty_ldisc_wait_idle(struct tty_struct *tty) +{ + unsigned long flags; + spin_lock_irqsave(&tty_ldisc_lock, flags); + while (tty->ldisc->refcount) { + spin_unlock_irqrestore(&tty_ldisc_lock, flags); + if (wait_event_timeout(tty_ldisc_wait, + tty->ldisc->refcount == 0, 5 * HZ) == 0) + return -EBUSY; + spin_lock_irqsave(&tty_ldisc_lock, flags); + } + spin_unlock_irqrestore(&tty_ldisc_lock, flags); + return 0; +} + +/** * tty_set_ldisc - set line discipline * @tty: the terminal to set * @ldisc: the line discipline * * Set the discipline of a tty line. Must be called from a process - * context. + * context. The ldisc change logic has to protect itself against any + * overlapping ldisc change (including on the other end of pty pairs), + * the close of one side of a tty/pty pair, and eventually hangup. * - * Locking: takes tty_ldisc_lock. - * called functions take termios_mutex + * Locking: takes tty_ldisc_lock, termios_mutex */ int tty_set_ldisc(struct tty_struct *tty, int ldisc) { int retval; - struct tty_ldisc o_ldisc, new_ldisc; - int work; - unsigned long flags; + struct tty_ldisc *o_ldisc, *new_ldisc; + int work, o_work = 0; struct tty_struct *o_tty; -restart: - /* This is a bit ugly for now but means we can break the 'ldisc - is part of the tty struct' assumption later */ - retval = tty_ldisc_get(ldisc, &new_ldisc); - if (retval) - return retval; + new_ldisc = tty_ldisc_get(ldisc); + if (IS_ERR(new_ldisc)) + return PTR_ERR(new_ldisc); + + /* + * We need to look at the tty locking here for pty/tty pairs + * when both sides try to change in parallel. + */ + + o_tty = tty->link; /* o_tty is the pty side or NULL */ + + + /* + * Check the no-op case + */ + + if (tty->ldisc->ops->num == ldisc) { + tty_ldisc_put(new_ldisc); + return 0; + } /* * Problem: What do we do if this blocks ? + * We could deadlock here */ tty_wait_until_sent(tty, 0); - if (tty->ldisc.ops->num == ldisc) { - tty_ldisc_put(new_ldisc.ops); - return 0; + mutex_lock(&tty->ldisc_mutex); + + /* + * We could be midstream of another ldisc change which has + * dropped the lock during processing. If so we need to wait. + */ + + while (test_bit(TTY_LDISC_CHANGING, &tty->flags)) { + mutex_unlock(&tty->ldisc_mutex); + wait_event(tty_ldisc_wait, + test_bit(TTY_LDISC_CHANGING, &tty->flags) == 0); + mutex_lock(&tty->ldisc_mutex); } + set_bit(TTY_LDISC_CHANGING, &tty->flags); /* * No more input please, we are switching. The new ldisc @@ -489,8 +616,6 @@ restart: tty->receive_room = 0; o_ldisc = tty->ldisc; - o_tty = tty->link; - /* * Make sure we don't change while someone holds a * reference to the line discipline. The TTY_LDISC bit @@ -501,108 +626,181 @@ restart: * with a userspace app continually trying to use the tty in * parallel to the change and re-referencing the tty. */ - clear_bit(TTY_LDISC, &tty->flags); - if (o_tty) - clear_bit(TTY_LDISC, &o_tty->flags); - spin_lock_irqsave(&tty_ldisc_lock, flags); - if (tty->ldisc.refcount || (o_tty && o_tty->ldisc.refcount)) { - if (tty->ldisc.refcount) { - /* Free the new ldisc we grabbed. Must drop the lock - first. */ - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - tty_ldisc_put(o_ldisc.ops); - /* - * There are several reasons we may be busy, including - * random momentary I/O traffic. We must therefore - * retry. We could distinguish between blocking ops - * and retries if we made tty_ldisc_wait() smarter. - * That is up for discussion. - */ - if (wait_event_interruptible(tty_ldisc_wait, tty->ldisc.refcount == 0) < 0) - return -ERESTARTSYS; - goto restart; - } - if (o_tty && o_tty->ldisc.refcount) { - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - tty_ldisc_put(o_tty->ldisc.ops); - if (wait_event_interruptible(tty_ldisc_wait, o_tty->ldisc.refcount == 0) < 0) - return -ERESTARTSYS; - goto restart; - } - } - /* - * If the TTY_LDISC bit is set, then we are racing against - * another ldisc change - */ - if (test_bit(TTY_LDISC_CHANGING, &tty->flags)) { - struct tty_ldisc *ld; - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - tty_ldisc_put(new_ldisc.ops); - ld = tty_ldisc_ref_wait(tty); - tty_ldisc_deref(ld); - goto restart; - } - /* - * This flag is used to avoid two parallel ldisc changes. Once - * open and close are fine grained locked this may work better - * as a mutex shared with the open/close/hup paths - */ - set_bit(TTY_LDISC_CHANGING, &tty->flags); + work = tty_ldisc_halt(tty); if (o_tty) - set_bit(TTY_LDISC_CHANGING, &o_tty->flags); - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - - /* - * From this point on we know nobody has an ldisc - * usage reference, nor can they obtain one until - * we say so later on. - */ + o_work = tty_ldisc_halt(o_tty); - work = cancel_delayed_work(&tty->buf.work); /* - * Wait for ->hangup_work and ->buf.work handlers to terminate - * MUST NOT hold locks here. + * Wait for ->hangup_work and ->buf.work handlers to terminate. + * We must drop the mutex here in case a hangup is also in process. */ + + mutex_unlock(&tty->ldisc_mutex); + flush_scheduled_work(); + + /* Let any existing reference holders finish */ + retval = tty_ldisc_wait_idle(tty); + if (retval < 0) { + clear_bit(TTY_LDISC_CHANGING, &tty->flags); + tty_ldisc_put(new_ldisc); + return retval; + } + + mutex_lock(&tty->ldisc_mutex); + if (test_bit(TTY_HUPPED, &tty->flags)) { + /* We were raced by the hangup method. It will have stomped + the ldisc data and closed the ldisc down */ + clear_bit(TTY_LDISC_CHANGING, &tty->flags); + mutex_unlock(&tty->ldisc_mutex); + tty_ldisc_put(new_ldisc); + return -EIO; + } + /* Shutdown the current discipline. */ - if (o_ldisc.ops->close) - (o_ldisc.ops->close)(tty); + tty_ldisc_close(tty, o_ldisc); /* Now set up the new line discipline. */ - tty_ldisc_assign(tty, &new_ldisc); + tty_ldisc_assign(tty, new_ldisc); tty_set_termios_ldisc(tty, ldisc); - if (new_ldisc.ops->open) - retval = (new_ldisc.ops->open)(tty); + + retval = tty_ldisc_open(tty, new_ldisc); if (retval < 0) { - tty_ldisc_put(new_ldisc.ops); - tty_ldisc_restore(tty, &o_ldisc); + /* Back to the old one or N_TTY if we can't */ + tty_ldisc_put(new_ldisc); + tty_ldisc_restore(tty, o_ldisc); } + /* At this point we hold a reference to the new ldisc and a a reference to the old ldisc. If we ended up flipping back to the existing ldisc we have two references to it */ - if (tty->ldisc.ops->num != o_ldisc.ops->num && tty->ops->set_ldisc) + if (tty->ldisc->ops->num != o_ldisc->ops->num && tty->ops->set_ldisc) tty->ops->set_ldisc(tty); - tty_ldisc_put(o_ldisc.ops); + tty_ldisc_put(o_ldisc); /* - * Allow ldisc referencing to occur as soon as the driver - * ldisc callback completes. + * Allow ldisc referencing to occur again */ tty_ldisc_enable(tty); if (o_tty) tty_ldisc_enable(o_tty); - /* Restart it in case no characters kick it off. Safe if + /* Restart the work queue in case no characters kick it off. Safe if already running */ if (work) schedule_delayed_work(&tty->buf.work, 1); + if (o_work) + schedule_delayed_work(&o_tty->buf.work, 1); + mutex_unlock(&tty->ldisc_mutex); return retval; } +/** + * tty_reset_termios - reset terminal state + * @tty: tty to reset + * + * Restore a terminal to the driver default state. + */ + +static void tty_reset_termios(struct tty_struct *tty) +{ + mutex_lock(&tty->termios_mutex); + *tty->termios = tty->driver->init_termios; + tty->termios->c_ispeed = tty_termios_input_baud_rate(tty->termios); + tty->termios->c_ospeed = tty_termios_baud_rate(tty->termios); + mutex_unlock(&tty->termios_mutex); +} + + +/** + * tty_ldisc_reinit - reinitialise the tty ldisc + * @tty: tty to reinit + * + * Switch the tty back to N_TTY line discipline and leave the + * ldisc state closed + */ + +static void tty_ldisc_reinit(struct tty_struct *tty) +{ + struct tty_ldisc *ld; + + tty_ldisc_close(tty, tty->ldisc); + tty_ldisc_put(tty->ldisc); + tty->ldisc = NULL; + /* + * Switch the line discipline back + */ + ld = tty_ldisc_get(N_TTY); + BUG_ON(IS_ERR(ld)); + tty_ldisc_assign(tty, ld); + tty_set_termios_ldisc(tty, N_TTY); +} + +/** + * tty_ldisc_hangup - hangup ldisc reset + * @tty: tty being hung up + * + * Some tty devices reset their termios when they receive a hangup + * event. In that situation we must also switch back to N_TTY properly + * before we reset the termios data. + * + * Locking: We can take the ldisc mutex as the rest of the code is + * careful to allow for this. + * + * In the pty pair case this occurs in the close() path of the + * tty itself so we must be careful about locking rules. + */ + +void tty_ldisc_hangup(struct tty_struct *tty) +{ + struct tty_ldisc *ld; + + /* + * FIXME! What are the locking issues here? This may me overdoing + * things... This question is especially important now that we've + * removed the irqlock. + */ + ld = tty_ldisc_ref(tty); + if (ld != NULL) { + /* We may have no line discipline at this point */ + if (ld->ops->flush_buffer) + ld->ops->flush_buffer(tty); + tty_driver_flush_buffer(tty); + if ((test_bit(TTY_DO_WRITE_WAKEUP, &tty->flags)) && + ld->ops->write_wakeup) + ld->ops->write_wakeup(tty); + if (ld->ops->hangup) + ld->ops->hangup(tty); + tty_ldisc_deref(ld); + } + /* + * FIXME: Once we trust the LDISC code better we can wait here for + * ldisc completion and fix the driver call race + */ + wake_up_interruptible_poll(&tty->write_wait, POLLOUT); + wake_up_interruptible_poll(&tty->read_wait, POLLIN); + /* + * Shutdown the current line discipline, and reset it to + * N_TTY. + */ + if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS) { + /* Avoid racing set_ldisc */ + mutex_lock(&tty->ldisc_mutex); + /* Switch back to N_TTY */ + tty_ldisc_reinit(tty); + /* At this point we have a closed ldisc and we want to + reopen it. We could defer this to the next open but + it means auditing a lot of other paths so this is a FIXME */ + WARN_ON(tty_ldisc_open(tty, tty->ldisc)); + tty_ldisc_enable(tty); + mutex_unlock(&tty->ldisc_mutex); + tty_reset_termios(tty); + } +} /** * tty_ldisc_setup - open line discipline @@ -610,24 +808,23 @@ restart: * @o_tty: pair tty for pty/tty pairs * * Called during the initial open of a tty/pty pair in order to set up the - * line discplines and bind them to the tty. + * line disciplines and bind them to the tty. This has no locking issues + * as the device isn't yet active. */ int tty_ldisc_setup(struct tty_struct *tty, struct tty_struct *o_tty) { - struct tty_ldisc *ld = &tty->ldisc; + struct tty_ldisc *ld = tty->ldisc; int retval; - if (ld->ops->open) { - retval = (ld->ops->open)(tty); - if (retval) - return retval; - } - if (o_tty && o_tty->ldisc.ops->open) { - retval = (o_tty->ldisc.ops->open)(o_tty); + retval = tty_ldisc_open(tty, ld); + if (retval) + return retval; + + if (o_tty) { + retval = tty_ldisc_open(o_tty, o_tty->ldisc); if (retval) { - if (ld->ops->close) - (ld->ops->close)(tty); + tty_ldisc_close(tty, ld); return retval; } tty_ldisc_enable(o_tty); @@ -635,32 +832,25 @@ int tty_ldisc_setup(struct tty_struct *tty, struct tty_struct *o_tty) tty_ldisc_enable(tty); return 0; } - /** * tty_ldisc_release - release line discipline * @tty: tty being shut down * @o_tty: pair tty for pty/tty pairs * - * Called during the final close of a tty/pty pair in order to shut down the - * line discpline layer. + * Called during the final close of a tty/pty pair in order to shut down + * the line discpline layer. On exit the ldisc assigned is N_TTY and the + * ldisc has not been opened. */ void tty_ldisc_release(struct tty_struct *tty, struct tty_struct *o_tty) { - unsigned long flags; - struct tty_ldisc ld; /* * Prevent flush_to_ldisc() from rescheduling the work for later. Then * kill any delayed work. As this is the final close it does not * race with the set_ldisc code path. */ - clear_bit(TTY_LDISC, &tty->flags); - cancel_delayed_work(&tty->buf.work); - - /* - * Wait for ->hangup_work and ->buf.work handlers to terminate - */ + tty_ldisc_halt(tty); flush_scheduled_work(); /* @@ -668,38 +858,19 @@ void tty_ldisc_release(struct tty_struct *tty, struct tty_struct *o_tty) * side waiters as the file is closing so user count on the file * side is zero. */ - spin_lock_irqsave(&tty_ldisc_lock, flags); - while (tty->ldisc.refcount) { - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - wait_event(tty_ldisc_wait, tty->ldisc.refcount == 0); - spin_lock_irqsave(&tty_ldisc_lock, flags); - } - spin_unlock_irqrestore(&tty_ldisc_lock, flags); + + tty_ldisc_wait_idle(tty); + /* * Shutdown the current line discipline, and reset it to N_TTY. * * FIXME: this MUST get fixed for the new reflocking */ - if (tty->ldisc.ops->close) - (tty->ldisc.ops->close)(tty); - tty_ldisc_put(tty->ldisc.ops); - /* - * Switch the line discipline back - */ - WARN_ON(tty_ldisc_get(N_TTY, &ld)); - tty_ldisc_assign(tty, &ld); - tty_set_termios_ldisc(tty, N_TTY); - if (o_tty) { - /* FIXME: could o_tty be in setldisc here ? */ - clear_bit(TTY_LDISC, &o_tty->flags); - if (o_tty->ldisc.ops->close) - (o_tty->ldisc.ops->close)(o_tty); - tty_ldisc_put(o_tty->ldisc.ops); - WARN_ON(tty_ldisc_get(N_TTY, &ld)); - tty_ldisc_assign(o_tty, &ld); - tty_set_termios_ldisc(o_tty, N_TTY); - } + tty_ldisc_reinit(tty); + /* This will need doing differently if we need to lock */ + if (o_tty) + tty_ldisc_release(o_tty, NULL); } /** @@ -712,10 +883,10 @@ void tty_ldisc_release(struct tty_struct *tty, struct tty_struct *o_tty) void tty_ldisc_init(struct tty_struct *tty) { - struct tty_ldisc ld; - if (tty_ldisc_get(N_TTY, &ld) < 0) + struct tty_ldisc *ld = tty_ldisc_get(N_TTY); + if (IS_ERR(ld)) panic("n_tty: init_tty"); - tty_ldisc_assign(tty, &ld); + tty_ldisc_assign(tty, ld); } void tty_ldisc_begin(void) diff --git a/drivers/char/tty_port.c b/drivers/char/tty_port.c index 9b8004c7268..62dadfc95e3 100644 --- a/drivers/char/tty_port.c +++ b/drivers/char/tty_port.c @@ -137,7 +137,7 @@ int tty_port_carrier_raised(struct tty_port *port) EXPORT_SYMBOL(tty_port_carrier_raised); /** - * tty_port_raise_dtr_rts - Riase DTR/RTS + * tty_port_raise_dtr_rts - Raise DTR/RTS * @port: tty port * * Wrapper for the DTR/RTS raise logic. For the moment this is used @@ -147,12 +147,28 @@ EXPORT_SYMBOL(tty_port_carrier_raised); void tty_port_raise_dtr_rts(struct tty_port *port) { - if (port->ops->raise_dtr_rts) - port->ops->raise_dtr_rts(port); + if (port->ops->dtr_rts) + port->ops->dtr_rts(port, 1); } EXPORT_SYMBOL(tty_port_raise_dtr_rts); /** + * tty_port_lower_dtr_rts - Lower DTR/RTS + * @port: tty port + * + * Wrapper for the DTR/RTS raise logic. For the moment this is used + * to hide some internal details. This will eventually become entirely + * internal to the tty port. + */ + +void tty_port_lower_dtr_rts(struct tty_port *port) +{ + if (port->ops->dtr_rts) + port->ops->dtr_rts(port, 0); +} +EXPORT_SYMBOL(tty_port_lower_dtr_rts); + +/** * tty_port_block_til_ready - Waiting logic for tty open * @port: the tty port being opened * @tty: the tty device being bound @@ -167,7 +183,7 @@ EXPORT_SYMBOL(tty_port_raise_dtr_rts); * - port flags and counts * * The passed tty_port must implement the carrier_raised method if it can - * do carrier detect and the raise_dtr_rts method if it supports software + * do carrier detect and the dtr_rts method if it supports software * management of these lines. Note that the dtr/rts raise is done each * iteration as a hangup may have previously dropped them while we wait. */ @@ -182,7 +198,8 @@ int tty_port_block_til_ready(struct tty_port *port, /* block if port is in the process of being closed */ if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) { - interruptible_sleep_on(&port->close_wait); + wait_event_interruptible(port->close_wait, + !(port->flags & ASYNC_CLOSING)); if (port->flags & ASYNC_HUP_NOTIFY) return -EAGAIN; else @@ -205,7 +222,6 @@ int tty_port_block_til_ready(struct tty_port *port, before the next open may complete */ retval = 0; - add_wait_queue(&port->open_wait, &wait); /* The port lock protects the port counts */ spin_lock_irqsave(&port->lock, flags); @@ -219,7 +235,7 @@ int tty_port_block_til_ready(struct tty_port *port, if (tty->termios->c_cflag & CBAUD) tty_port_raise_dtr_rts(port); - set_current_state(TASK_INTERRUPTIBLE); + prepare_to_wait(&port->open_wait, &wait, TASK_INTERRUPTIBLE); /* Check for a hangup or uninitialised port. Return accordingly */ if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)) { if (port->flags & ASYNC_HUP_NOTIFY) @@ -240,8 +256,7 @@ int tty_port_block_til_ready(struct tty_port *port, } schedule(); } - set_current_state(TASK_RUNNING); - remove_wait_queue(&port->open_wait, &wait); + finish_wait(&port->open_wait, &wait); /* Update counts. A parallel hangup will have set count to zero and we must not mess that up further */ @@ -292,6 +307,17 @@ int tty_port_close_start(struct tty_port *port, struct tty_struct *tty, struct f if (port->flags & ASYNC_INITIALIZED && port->closing_wait != ASYNC_CLOSING_WAIT_NONE) tty_wait_until_sent(tty, port->closing_wait); + if (port->drain_delay) { + unsigned int bps = tty_get_baud_rate(tty); + long timeout; + + if (bps > 1200) + timeout = max_t(long, (HZ * 10 * port->drain_delay) / bps, + HZ / 10); + else + timeout = 2 * HZ; + schedule_timeout_interruptible(timeout); + } return 1; } EXPORT_SYMBOL(tty_port_close_start); @@ -302,6 +328,9 @@ void tty_port_close_end(struct tty_port *port, struct tty_struct *tty) tty_ldisc_flush(tty); + if (tty->termios->c_cflag & HUPCL) + tty_port_lower_dtr_rts(port); + spin_lock_irqsave(&port->lock, flags); tty->closing = 0; diff --git a/drivers/char/vt.c b/drivers/char/vt.c index 08151d4de48..de9ebee8657 100644 --- a/drivers/char/vt.c +++ b/drivers/char/vt.c @@ -95,7 +95,6 @@ #include <linux/timer.h> #include <linux/interrupt.h> #include <linux/workqueue.h> -#include <linux/bootmem.h> #include <linux/pm.h> #include <linux/font.h> #include <linux/bitops.h> @@ -104,6 +103,7 @@ #include <linux/io.h> #include <asm/system.h> #include <linux/uaccess.h> +#include <linux/kmemleak.h> #define MAX_NR_CON_DRIVER 16 @@ -2875,14 +2875,11 @@ static int __init con_init(void) mod_timer(&console_timer, jiffies + blankinterval); } - /* - * kmalloc is not running yet - we use the bootmem allocator. - */ for (currcons = 0; currcons < MIN_NR_CONSOLES; currcons++) { - vc_cons[currcons].d = vc = alloc_bootmem(sizeof(struct vc_data)); + vc_cons[currcons].d = vc = kzalloc(sizeof(struct vc_data), GFP_NOWAIT); INIT_WORK(&vc_cons[currcons].SAK_work, vc_SAK); visual_init(vc, currcons, 1); - vc->vc_screenbuf = (unsigned short *)alloc_bootmem(vc->vc_screenbuf_size); + vc->vc_screenbuf = kzalloc(vc->vc_screenbuf_size, GFP_NOWAIT); vc->vc_kmalloced = 0; vc_init(vc, vc->vc_rows, vc->vc_cols, currcons || !vc->vc_sw->con_save_screen); diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile index 1efb2879a94..eef216f7f61 100644 --- a/drivers/clocksource/Makefile +++ b/drivers/clocksource/Makefile @@ -3,3 +3,5 @@ obj-$(CONFIG_X86_CYCLONE_TIMER) += cyclone.o obj-$(CONFIG_X86_PM_TIMER) += acpi_pm.o obj-$(CONFIG_SCx200HR_TIMER) += scx200_hrt.o obj-$(CONFIG_SH_TIMER_CMT) += sh_cmt.o +obj-$(CONFIG_SH_TIMER_MTU2) += sh_mtu2.o +obj-$(CONFIG_SH_TIMER_TMU) += sh_tmu.o diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c index 1c92c39a53a..cf56a2af5fe 100644 --- a/drivers/clocksource/sh_cmt.c +++ b/drivers/clocksource/sh_cmt.c @@ -18,7 +18,6 @@ */ #include <linux/init.h> -#include <linux/bootmem.h> #include <linux/platform_device.h> #include <linux/spinlock.h> #include <linux/interrupt.h> @@ -29,7 +28,7 @@ #include <linux/err.h> #include <linux/clocksource.h> #include <linux/clockchips.h> -#include <linux/sh_cmt.h> +#include <linux/sh_timer.h> struct sh_cmt_priv { void __iomem *mapbase; @@ -47,6 +46,7 @@ struct sh_cmt_priv { unsigned long rate; spinlock_t lock; struct clock_event_device ced; + struct clocksource cs; unsigned long total_cycles; }; @@ -59,7 +59,7 @@ static DEFINE_SPINLOCK(sh_cmt_lock); static inline unsigned long sh_cmt_read(struct sh_cmt_priv *p, int reg_nr) { - struct sh_cmt_config *cfg = p->pdev->dev.platform_data; + struct sh_timer_config *cfg = p->pdev->dev.platform_data; void __iomem *base = p->mapbase; unsigned long offs; @@ -83,7 +83,7 @@ static inline unsigned long sh_cmt_read(struct sh_cmt_priv *p, int reg_nr) static inline void sh_cmt_write(struct sh_cmt_priv *p, int reg_nr, unsigned long value) { - struct sh_cmt_config *cfg = p->pdev->dev.platform_data; + struct sh_timer_config *cfg = p->pdev->dev.platform_data; void __iomem *base = p->mapbase; unsigned long offs; @@ -110,23 +110,28 @@ static unsigned long sh_cmt_get_counter(struct sh_cmt_priv *p, int *has_wrapped) { unsigned long v1, v2, v3; + int o1, o2; + + o1 = sh_cmt_read(p, CMCSR) & p->overflow_bit; /* Make sure the timer value is stable. Stolen from acpi_pm.c */ do { + o2 = o1; v1 = sh_cmt_read(p, CMCNT); v2 = sh_cmt_read(p, CMCNT); v3 = sh_cmt_read(p, CMCNT); - } while (unlikely((v1 > v2 && v1 < v3) || (v2 > v3 && v2 < v1) - || (v3 > v1 && v3 < v2))); + o1 = sh_cmt_read(p, CMCSR) & p->overflow_bit; + } while (unlikely((o1 != o2) || (v1 > v2 && v1 < v3) + || (v2 > v3 && v2 < v1) || (v3 > v1 && v3 < v2))); - *has_wrapped = sh_cmt_read(p, CMCSR) & p->overflow_bit; + *has_wrapped = o1; return v2; } static void sh_cmt_start_stop_ch(struct sh_cmt_priv *p, int start) { - struct sh_cmt_config *cfg = p->pdev->dev.platform_data; + struct sh_timer_config *cfg = p->pdev->dev.platform_data; unsigned long flags, value; /* start stop register shared by multiple timer channels */ @@ -144,7 +149,7 @@ static void sh_cmt_start_stop_ch(struct sh_cmt_priv *p, int start) static int sh_cmt_enable(struct sh_cmt_priv *p, unsigned long *rate) { - struct sh_cmt_config *cfg = p->pdev->dev.platform_data; + struct sh_timer_config *cfg = p->pdev->dev.platform_data; int ret; /* enable clock */ @@ -153,16 +158,18 @@ static int sh_cmt_enable(struct sh_cmt_priv *p, unsigned long *rate) pr_err("sh_cmt: cannot enable clock \"%s\"\n", cfg->clk); return ret; } - *rate = clk_get_rate(p->clk) / 8; /* make sure channel is disabled */ sh_cmt_start_stop_ch(p, 0); /* configure channel, periodic mode and maximum timeout */ - if (p->width == 16) - sh_cmt_write(p, CMCSR, 0); - else + if (p->width == 16) { + *rate = clk_get_rate(p->clk) / 512; + sh_cmt_write(p, CMCSR, 0x43); + } else { + *rate = clk_get_rate(p->clk) / 8; sh_cmt_write(p, CMCSR, 0x01a4); + } sh_cmt_write(p, CMCOR, 0xffffffff); sh_cmt_write(p, CMCNT, 0); @@ -376,6 +383,68 @@ static void sh_cmt_stop(struct sh_cmt_priv *p, unsigned long flag) spin_unlock_irqrestore(&p->lock, flags); } +static struct sh_cmt_priv *cs_to_sh_cmt(struct clocksource *cs) +{ + return container_of(cs, struct sh_cmt_priv, cs); +} + +static cycle_t sh_cmt_clocksource_read(struct clocksource *cs) +{ + struct sh_cmt_priv *p = cs_to_sh_cmt(cs); + unsigned long flags, raw; + unsigned long value; + int has_wrapped; + + spin_lock_irqsave(&p->lock, flags); + value = p->total_cycles; + raw = sh_cmt_get_counter(p, &has_wrapped); + + if (unlikely(has_wrapped)) + raw += p->match_value; + spin_unlock_irqrestore(&p->lock, flags); + + return value + raw; +} + +static int sh_cmt_clocksource_enable(struct clocksource *cs) +{ + struct sh_cmt_priv *p = cs_to_sh_cmt(cs); + int ret; + + p->total_cycles = 0; + + ret = sh_cmt_start(p, FLAG_CLOCKSOURCE); + if (ret) + return ret; + + /* TODO: calculate good shift from rate and counter bit width */ + cs->shift = 0; + cs->mult = clocksource_hz2mult(p->rate, cs->shift); + return 0; +} + +static void sh_cmt_clocksource_disable(struct clocksource *cs) +{ + sh_cmt_stop(cs_to_sh_cmt(cs), FLAG_CLOCKSOURCE); +} + +static int sh_cmt_register_clocksource(struct sh_cmt_priv *p, + char *name, unsigned long rating) +{ + struct clocksource *cs = &p->cs; + + cs->name = name; + cs->rating = rating; + cs->read = sh_cmt_clocksource_read; + cs->enable = sh_cmt_clocksource_enable; + cs->disable = sh_cmt_clocksource_disable; + cs->mask = CLOCKSOURCE_MASK(sizeof(unsigned long) * 8); + cs->flags = CLOCK_SOURCE_IS_CONTINUOUS; + pr_info("sh_cmt: %s used as clock source\n", cs->name); + clocksource_register(cs); + return 0; +} + static struct sh_cmt_priv *ced_to_sh_cmt(struct clock_event_device *ced) { return container_of(ced, struct sh_cmt_priv, ced); @@ -468,9 +537,9 @@ static void sh_cmt_register_clockevent(struct sh_cmt_priv *p, clockevents_register_device(ced); } -int sh_cmt_register(struct sh_cmt_priv *p, char *name, - unsigned long clockevent_rating, - unsigned long clocksource_rating) +static int sh_cmt_register(struct sh_cmt_priv *p, char *name, + unsigned long clockevent_rating, + unsigned long clocksource_rating) { if (p->width == (sizeof(p->max_match_value) * 8)) p->max_match_value = ~0; @@ -483,12 +552,15 @@ int sh_cmt_register(struct sh_cmt_priv *p, char *name, if (clockevent_rating) sh_cmt_register_clockevent(p, name, clockevent_rating); + if (clocksource_rating) + sh_cmt_register_clocksource(p, name, clocksource_rating); + return 0; } static int sh_cmt_setup(struct sh_cmt_priv *p, struct platform_device *pdev) { - struct sh_cmt_config *cfg = pdev->dev.platform_data; + struct sh_timer_config *cfg = pdev->dev.platform_data; struct resource *res; int irq, ret; ret = -ENXIO; @@ -545,7 +617,7 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, struct platform_device *pdev) if (resource_size(res) == 6) { p->width = 16; p->overflow_bit = 0x80; - p->clear_bits = ~0xc0; + p->clear_bits = ~0x80; } else { p->width = 32; p->overflow_bit = 0x8000; @@ -566,8 +638,14 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, struct platform_device *pdev) static int __devinit sh_cmt_probe(struct platform_device *pdev) { struct sh_cmt_priv *p = platform_get_drvdata(pdev); + struct sh_timer_config *cfg = pdev->dev.platform_data; int ret; + if (p) { + pr_info("sh_cmt: %s kept as earlytimer\n", cfg->name); + return 0; + } + p = kmalloc(sizeof(*p), GFP_KERNEL); if (p == NULL) { dev_err(&pdev->dev, "failed to allocate driver data\n"); @@ -577,7 +655,6 @@ static int __devinit sh_cmt_probe(struct platform_device *pdev) ret = sh_cmt_setup(p, pdev); if (ret) { kfree(p); - platform_set_drvdata(pdev, NULL); } return ret; @@ -606,6 +683,7 @@ static void __exit sh_cmt_exit(void) platform_driver_unregister(&sh_cmt_device_driver); } +early_platform_init("earlytimer", &sh_cmt_device_driver); module_init(sh_cmt_init); module_exit(sh_cmt_exit); diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c new file mode 100644 index 00000000000..d1ae75454d1 --- /dev/null +++ b/drivers/clocksource/sh_mtu2.c @@ -0,0 +1,357 @@ +/* + * SuperH Timer Support - MTU2 + * + * Copyright (C) 2009 Magnus Damm + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/spinlock.h> +#include <linux/interrupt.h> +#include <linux/ioport.h> +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/clk.h> +#include <linux/irq.h> +#include <linux/err.h> +#include <linux/clockchips.h> +#include <linux/sh_timer.h> + +struct sh_mtu2_priv { + void __iomem *mapbase; + struct clk *clk; + struct irqaction irqaction; + struct platform_device *pdev; + unsigned long rate; + unsigned long periodic; + struct clock_event_device ced; +}; + +static DEFINE_SPINLOCK(sh_mtu2_lock); + +#define TSTR -1 /* shared register */ +#define TCR 0 /* channel register */ +#define TMDR 1 /* channel register */ +#define TIOR 2 /* channel register */ +#define TIER 3 /* channel register */ +#define TSR 4 /* channel register */ +#define TCNT 5 /* channel register */ +#define TGR 6 /* channel register */ + +static unsigned long mtu2_reg_offs[] = { + [TCR] = 0, + [TMDR] = 1, + [TIOR] = 2, + [TIER] = 4, + [TSR] = 5, + [TCNT] = 6, + [TGR] = 8, +}; + +static inline unsigned long sh_mtu2_read(struct sh_mtu2_priv *p, int reg_nr) +{ + struct sh_timer_config *cfg = p->pdev->dev.platform_data; + void __iomem *base = p->mapbase; + unsigned long offs; + + if (reg_nr == TSTR) + return ioread8(base + cfg->channel_offset); + + offs = mtu2_reg_offs[reg_nr]; + + if ((reg_nr == TCNT) || (reg_nr == TGR)) + return ioread16(base + offs); + else + return ioread8(base + offs); +} + +static inline void sh_mtu2_write(struct sh_mtu2_priv *p, int reg_nr, + unsigned long value) +{ + struct sh_timer_config *cfg = p->pdev->dev.platform_data; + void __iomem *base = p->mapbase; + unsigned long offs; + + if (reg_nr == TSTR) { + iowrite8(value, base + cfg->channel_offset); + return; + } + + offs = mtu2_reg_offs[reg_nr]; + + if ((reg_nr == TCNT) || (reg_nr == TGR)) + iowrite16(value, base + offs); + else + iowrite8(value, base + offs); +} + +static void sh_mtu2_start_stop_ch(struct sh_mtu2_priv *p, int start) +{ + struct sh_timer_config *cfg = p->pdev->dev.platform_data; + unsigned long flags, value; + + /* start stop register shared by multiple timer channels */ + spin_lock_irqsave(&sh_mtu2_lock, flags); + value = sh_mtu2_read(p, TSTR); + + if (start) + value |= 1 << cfg->timer_bit; + else + value &= ~(1 << cfg->timer_bit); + + sh_mtu2_write(p, TSTR, value); + spin_unlock_irqrestore(&sh_mtu2_lock, flags); +} + +static int sh_mtu2_enable(struct sh_mtu2_priv *p) +{ + struct sh_timer_config *cfg = p->pdev->dev.platform_data; + int ret; + + /* enable clock */ + ret = clk_enable(p->clk); + if (ret) { + pr_err("sh_mtu2: cannot enable clock \"%s\"\n", cfg->clk); + return ret; + } + + /* make sure channel is disabled */ + sh_mtu2_start_stop_ch(p, 0); + + p->rate = clk_get_rate(p->clk) / 64; + p->periodic = (p->rate + HZ/2) / HZ; + + /* "Periodic Counter Operation" */ + sh_mtu2_write(p, TCR, 0x23); /* TGRA clear, divide clock by 64 */ + sh_mtu2_write(p, TIOR, 0); + sh_mtu2_write(p, TGR, p->periodic); + sh_mtu2_write(p, TCNT, 0); + sh_mtu2_write(p, TMDR, 0); + sh_mtu2_write(p, TIER, 0x01); + + /* enable channel */ + sh_mtu2_start_stop_ch(p, 1); + + return 0; +} + +static void sh_mtu2_disable(struct sh_mtu2_priv *p) +{ + /* disable channel */ + sh_mtu2_start_stop_ch(p, 0); + + /* stop clock */ + clk_disable(p->clk); +} + +static irqreturn_t sh_mtu2_interrupt(int irq, void *dev_id) +{ + struct sh_mtu2_priv *p = dev_id; + + /* acknowledge interrupt */ + sh_mtu2_read(p, TSR); + sh_mtu2_write(p, TSR, 0xfe); + + /* notify clockevent layer */ + p->ced.event_handler(&p->ced); + return IRQ_HANDLED; +} + +static struct sh_mtu2_priv *ced_to_sh_mtu2(struct clock_event_device *ced) +{ + return container_of(ced, struct sh_mtu2_priv, ced); +} + +static void sh_mtu2_clock_event_mode(enum clock_event_mode mode, + struct clock_event_device *ced) +{ + struct sh_mtu2_priv *p = ced_to_sh_mtu2(ced); + int disabled = 0; + + /* deal with old setting first */ + switch (ced->mode) { + case CLOCK_EVT_MODE_PERIODIC: + sh_mtu2_disable(p); + disabled = 1; + break; + default: + break; + } + + switch (mode) { + case CLOCK_EVT_MODE_PERIODIC: + pr_info("sh_mtu2: %s used for periodic clock events\n", + ced->name); + sh_mtu2_enable(p); + break; + case CLOCK_EVT_MODE_UNUSED: + if (!disabled) + sh_mtu2_disable(p); + break; + case CLOCK_EVT_MODE_SHUTDOWN: + default: + break; + } +} + +static void sh_mtu2_register_clockevent(struct sh_mtu2_priv *p, + char *name, unsigned long rating) +{ + struct clock_event_device *ced = &p->ced; + int ret; + + memset(ced, 0, sizeof(*ced)); + + ced->name = name; + ced->features = CLOCK_EVT_FEAT_PERIODIC; + ced->rating = rating; + ced->cpumask = cpumask_of(0); + ced->set_mode = sh_mtu2_clock_event_mode; + + ret = setup_irq(p->irqaction.irq, &p->irqaction); + if (ret) { + pr_err("sh_mtu2: failed to request irq %d\n", + p->irqaction.irq); + return; + } + + pr_info("sh_mtu2: %s used for clock events\n", ced->name); + clockevents_register_device(ced); +} + +static int sh_mtu2_register(struct sh_mtu2_priv *p, char *name, + unsigned long clockevent_rating) +{ + if (clockevent_rating) + sh_mtu2_register_clockevent(p, name, clockevent_rating); + + return 0; +} + +static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev) +{ + struct sh_timer_config *cfg = pdev->dev.platform_data; + struct resource *res; + int irq, ret; + ret = -ENXIO; + + memset(p, 0, sizeof(*p)); + p->pdev = pdev; + + if (!cfg) { + dev_err(&p->pdev->dev, "missing platform data\n"); + goto err0; + } + + platform_set_drvdata(pdev, p); + + res = platform_get_resource(p->pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&p->pdev->dev, "failed to get I/O memory\n"); + goto err0; + } + + irq = platform_get_irq(p->pdev, 0); + if (irq < 0) { + dev_err(&p->pdev->dev, "failed to get irq\n"); + goto err0; + } + + /* map memory, let mapbase point to our channel */ + p->mapbase = ioremap_nocache(res->start, resource_size(res)); + if (p->mapbase == NULL) { + pr_err("sh_mtu2: failed to remap I/O memory\n"); + goto err0; + } + + /* setup data for setup_irq() (too early for request_irq()) */ + p->irqaction.name = cfg->name; + p->irqaction.handler = sh_mtu2_interrupt; + p->irqaction.dev_id = p; + p->irqaction.irq = irq; + p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL; + p->irqaction.mask = CPU_MASK_NONE; + + /* get hold of clock */ + p->clk = clk_get(&p->pdev->dev, cfg->clk); + if (IS_ERR(p->clk)) { + pr_err("sh_mtu2: cannot get clock \"%s\"\n", cfg->clk); + ret = PTR_ERR(p->clk); + goto err1; + } + + return sh_mtu2_register(p, cfg->name, cfg->clockevent_rating); + err1: + iounmap(p->mapbase); + err0: + return ret; +} + +static int __devinit sh_mtu2_probe(struct platform_device *pdev) +{ + struct sh_mtu2_priv *p = platform_get_drvdata(pdev); + struct sh_timer_config *cfg = pdev->dev.platform_data; + int ret; + + if (p) { + pr_info("sh_mtu2: %s kept as earlytimer\n", cfg->name); + return 0; + } + + p = kmalloc(sizeof(*p), GFP_KERNEL); + if (p == NULL) { + dev_err(&pdev->dev, "failed to allocate driver data\n"); + return -ENOMEM; + } + + ret = sh_mtu2_setup(p, pdev); + if (ret) { + kfree(p); + platform_set_drvdata(pdev, NULL); + } + return ret; +} + +static int __devexit sh_mtu2_remove(struct platform_device *pdev) +{ + return -EBUSY; /* cannot unregister clockevent */ +} + +static struct platform_driver sh_mtu2_device_driver = { + .probe = sh_mtu2_probe, + .remove = __devexit_p(sh_mtu2_remove), + .driver = { + .name = "sh_mtu2", + } +}; + +static int __init sh_mtu2_init(void) +{ + return platform_driver_register(&sh_mtu2_device_driver); +} + +static void __exit sh_mtu2_exit(void) +{ + platform_driver_unregister(&sh_mtu2_device_driver); +} + +early_platform_init("earlytimer", &sh_mtu2_device_driver); +module_init(sh_mtu2_init); +module_exit(sh_mtu2_exit); + +MODULE_AUTHOR("Magnus Damm"); +MODULE_DESCRIPTION("SuperH MTU2 Timer Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c new file mode 100644 index 00000000000..d6ea4398bf6 --- /dev/null +++ b/drivers/clocksource/sh_tmu.c @@ -0,0 +1,461 @@ +/* + * SuperH Timer Support - TMU + * + * Copyright (C) 2009 Magnus Damm + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/spinlock.h> +#include <linux/interrupt.h> +#include <linux/ioport.h> +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/clk.h> +#include <linux/irq.h> +#include <linux/err.h> +#include <linux/clocksource.h> +#include <linux/clockchips.h> +#include <linux/sh_timer.h> + +struct sh_tmu_priv { + void __iomem *mapbase; + struct clk *clk; + struct irqaction irqaction; + struct platform_device *pdev; + unsigned long rate; + unsigned long periodic; + struct clock_event_device ced; + struct clocksource cs; +}; + +static DEFINE_SPINLOCK(sh_tmu_lock); + +#define TSTR -1 /* shared register */ +#define TCOR 0 /* channel register */ +#define TCNT 1 /* channel register */ +#define TCR 2 /* channel register */ + +static inline unsigned long sh_tmu_read(struct sh_tmu_priv *p, int reg_nr) +{ + struct sh_timer_config *cfg = p->pdev->dev.platform_data; + void __iomem *base = p->mapbase; + unsigned long offs; + + if (reg_nr == TSTR) + return ioread8(base - cfg->channel_offset); + + offs = reg_nr << 2; + + if (reg_nr == TCR) + return ioread16(base + offs); + else + return ioread32(base + offs); +} + +static inline void sh_tmu_write(struct sh_tmu_priv *p, int reg_nr, + unsigned long value) +{ + struct sh_timer_config *cfg = p->pdev->dev.platform_data; + void __iomem *base = p->mapbase; + unsigned long offs; + + if (reg_nr == TSTR) { + iowrite8(value, base - cfg->channel_offset); + return; + } + + offs = reg_nr << 2; + + if (reg_nr == TCR) + iowrite16(value, base + offs); + else + iowrite32(value, base + offs); +} + +static void sh_tmu_start_stop_ch(struct sh_tmu_priv *p, int start) +{ + struct sh_timer_config *cfg = p->pdev->dev.platform_data; + unsigned long flags, value; + + /* start stop register shared by multiple timer channels */ + spin_lock_irqsave(&sh_tmu_lock, flags); + value = sh_tmu_read(p, TSTR); + + if (start) + value |= 1 << cfg->timer_bit; + else + value &= ~(1 << cfg->timer_bit); + + sh_tmu_write(p, TSTR, value); + spin_unlock_irqrestore(&sh_tmu_lock, flags); +} + +static int sh_tmu_enable(struct sh_tmu_priv *p) +{ + struct sh_timer_config *cfg = p->pdev->dev.platform_data; + int ret; + + /* enable clock */ + ret = clk_enable(p->clk); + if (ret) { + pr_err("sh_tmu: cannot enable clock \"%s\"\n", cfg->clk); + return ret; + } + + /* make sure channel is disabled */ + sh_tmu_start_stop_ch(p, 0); + + /* maximum timeout */ + sh_tmu_write(p, TCOR, 0xffffffff); + sh_tmu_write(p, TCNT, 0xffffffff); + + /* configure channel to parent clock / 4, irq off */ + p->rate = clk_get_rate(p->clk) / 4; + sh_tmu_write(p, TCR, 0x0000); + + /* enable channel */ + sh_tmu_start_stop_ch(p, 1); + + return 0; +} + +static void sh_tmu_disable(struct sh_tmu_priv *p) +{ + /* disable channel */ + sh_tmu_start_stop_ch(p, 0); + + /* stop clock */ + clk_disable(p->clk); +} + +static void sh_tmu_set_next(struct sh_tmu_priv *p, unsigned long delta, + int periodic) +{ + /* stop timer */ + sh_tmu_start_stop_ch(p, 0); + + /* acknowledge interrupt */ + sh_tmu_read(p, TCR); + + /* enable interrupt */ + sh_tmu_write(p, TCR, 0x0020); + + /* reload delta value in case of periodic timer */ + if (periodic) + sh_tmu_write(p, TCOR, delta); + else + sh_tmu_write(p, TCOR, 0); + + sh_tmu_write(p, TCNT, delta); + + /* start timer */ + sh_tmu_start_stop_ch(p, 1); +} + +static irqreturn_t sh_tmu_interrupt(int irq, void *dev_id) +{ + struct sh_tmu_priv *p = dev_id; + + /* disable or acknowledge interrupt */ + if (p->ced.mode == CLOCK_EVT_MODE_ONESHOT) + sh_tmu_write(p, TCR, 0x0000); + else + sh_tmu_write(p, TCR, 0x0020); + + /* notify clockevent layer */ + p->ced.event_handler(&p->ced); + return IRQ_HANDLED; +} + +static struct sh_tmu_priv *cs_to_sh_tmu(struct clocksource *cs) +{ + return container_of(cs, struct sh_tmu_priv, cs); +} + +static cycle_t sh_tmu_clocksource_read(struct clocksource *cs) +{ + struct sh_tmu_priv *p = cs_to_sh_tmu(cs); + + return sh_tmu_read(p, TCNT) ^ 0xffffffff; +} + +static int sh_tmu_clocksource_enable(struct clocksource *cs) +{ + struct sh_tmu_priv *p = cs_to_sh_tmu(cs); + int ret; + + ret = sh_tmu_enable(p); + if (ret) + return ret; + + /* TODO: calculate good shift from rate and counter bit width */ + cs->shift = 10; + cs->mult = clocksource_hz2mult(p->rate, cs->shift); + return 0; +} + +static void sh_tmu_clocksource_disable(struct clocksource *cs) +{ + sh_tmu_disable(cs_to_sh_tmu(cs)); +} + +static int sh_tmu_register_clocksource(struct sh_tmu_priv *p, + char *name, unsigned long rating) +{ + struct clocksource *cs = &p->cs; + + cs->name = name; + cs->rating = rating; + cs->read = sh_tmu_clocksource_read; + cs->enable = sh_tmu_clocksource_enable; + cs->disable = sh_tmu_clocksource_disable; + cs->mask = CLOCKSOURCE_MASK(32); + cs->flags = CLOCK_SOURCE_IS_CONTINUOUS; + pr_info("sh_tmu: %s used as clock source\n", cs->name); + clocksource_register(cs); + return 0; +} + +static struct sh_tmu_priv *ced_to_sh_tmu(struct clock_event_device *ced) +{ + return container_of(ced, struct sh_tmu_priv, ced); +} + +static void sh_tmu_clock_event_start(struct sh_tmu_priv *p, int periodic) +{ + struct clock_event_device *ced = &p->ced; + + sh_tmu_enable(p); + + /* TODO: calculate good shift from rate and counter bit width */ + + ced->shift = 32; + ced->mult = div_sc(p->rate, NSEC_PER_SEC, ced->shift); + ced->max_delta_ns = clockevent_delta2ns(0xffffffff, ced); + ced->min_delta_ns = 5000; + + if (periodic) { + p->periodic = (p->rate + HZ/2) / HZ; + sh_tmu_set_next(p, p->periodic, 1); + } +} + +static void sh_tmu_clock_event_mode(enum clock_event_mode mode, + struct clock_event_device *ced) +{ + struct sh_tmu_priv *p = ced_to_sh_tmu(ced); + int disabled = 0; + + /* deal with old setting first */ + switch (ced->mode) { + case CLOCK_EVT_MODE_PERIODIC: + case CLOCK_EVT_MODE_ONESHOT: + sh_tmu_disable(p); + disabled = 1; + break; + default: + break; + } + + switch (mode) { + case CLOCK_EVT_MODE_PERIODIC: + pr_info("sh_tmu: %s used for periodic clock events\n", + ced->name); + sh_tmu_clock_event_start(p, 1); + break; + case CLOCK_EVT_MODE_ONESHOT: + pr_info("sh_tmu: %s used for oneshot clock events\n", + ced->name); + sh_tmu_clock_event_start(p, 0); + break; + case CLOCK_EVT_MODE_UNUSED: + if (!disabled) + sh_tmu_disable(p); + break; + case CLOCK_EVT_MODE_SHUTDOWN: + default: + break; + } +} + +static int sh_tmu_clock_event_next(unsigned long delta, + struct clock_event_device *ced) +{ + struct sh_tmu_priv *p = ced_to_sh_tmu(ced); + + BUG_ON(ced->mode != CLOCK_EVT_MODE_ONESHOT); + + /* program new delta value */ + sh_tmu_set_next(p, delta, 0); + return 0; +} + +static void sh_tmu_register_clockevent(struct sh_tmu_priv *p, + char *name, unsigned long rating) +{ + struct clock_event_device *ced = &p->ced; + int ret; + + memset(ced, 0, sizeof(*ced)); + + ced->name = name; + ced->features = CLOCK_EVT_FEAT_PERIODIC; + ced->features |= CLOCK_EVT_FEAT_ONESHOT; + ced->rating = rating; + ced->cpumask = cpumask_of(0); + ced->set_next_event = sh_tmu_clock_event_next; + ced->set_mode = sh_tmu_clock_event_mode; + + ret = setup_irq(p->irqaction.irq, &p->irqaction); + if (ret) { + pr_err("sh_tmu: failed to request irq %d\n", + p->irqaction.irq); + return; + } + + pr_info("sh_tmu: %s used for clock events\n", ced->name); + clockevents_register_device(ced); +} + +static int sh_tmu_register(struct sh_tmu_priv *p, char *name, + unsigned long clockevent_rating, + unsigned long clocksource_rating) +{ + if (clockevent_rating) + sh_tmu_register_clockevent(p, name, clockevent_rating); + else if (clocksource_rating) + sh_tmu_register_clocksource(p, name, clocksource_rating); + + return 0; +} + +static int sh_tmu_setup(struct sh_tmu_priv *p, struct platform_device *pdev) +{ + struct sh_timer_config *cfg = pdev->dev.platform_data; + struct resource *res; + int irq, ret; + ret = -ENXIO; + + memset(p, 0, sizeof(*p)); + p->pdev = pdev; + + if (!cfg) { + dev_err(&p->pdev->dev, "missing platform data\n"); + goto err0; + } + + platform_set_drvdata(pdev, p); + + res = platform_get_resource(p->pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&p->pdev->dev, "failed to get I/O memory\n"); + goto err0; + } + + irq = platform_get_irq(p->pdev, 0); + if (irq < 0) { + dev_err(&p->pdev->dev, "failed to get irq\n"); + goto err0; + } + + /* map memory, let mapbase point to our channel */ + p->mapbase = ioremap_nocache(res->start, resource_size(res)); + if (p->mapbase == NULL) { + pr_err("sh_tmu: failed to remap I/O memory\n"); + goto err0; + } + + /* setup data for setup_irq() (too early for request_irq()) */ + p->irqaction.name = cfg->name; + p->irqaction.handler = sh_tmu_interrupt; + p->irqaction.dev_id = p; + p->irqaction.irq = irq; + p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL; + p->irqaction.mask = CPU_MASK_NONE; + + /* get hold of clock */ + p->clk = clk_get(&p->pdev->dev, cfg->clk); + if (IS_ERR(p->clk)) { + pr_err("sh_tmu: cannot get clock \"%s\"\n", cfg->clk); + ret = PTR_ERR(p->clk); + goto err1; + } + + return sh_tmu_register(p, cfg->name, + cfg->clockevent_rating, + cfg->clocksource_rating); + err1: + iounmap(p->mapbase); + err0: + return ret; +} + +static int __devinit sh_tmu_probe(struct platform_device *pdev) +{ + struct sh_tmu_priv *p = platform_get_drvdata(pdev); + struct sh_timer_config *cfg = pdev->dev.platform_data; + int ret; + + if (p) { + pr_info("sh_tmu: %s kept as earlytimer\n", cfg->name); + return 0; + } + + p = kmalloc(sizeof(*p), GFP_KERNEL); + if (p == NULL) { + dev_err(&pdev->dev, "failed to allocate driver data\n"); + return -ENOMEM; + } + + ret = sh_tmu_setup(p, pdev); + if (ret) { + kfree(p); + platform_set_drvdata(pdev, NULL); + } + return ret; +} + +static int __devexit sh_tmu_remove(struct platform_device *pdev) +{ + return -EBUSY; /* cannot unregister clockevent and clocksource */ +} + +static struct platform_driver sh_tmu_device_driver = { + .probe = sh_tmu_probe, + .remove = __devexit_p(sh_tmu_remove), + .driver = { + .name = "sh_tmu", + } +}; + +static int __init sh_tmu_init(void) +{ + return platform_driver_register(&sh_tmu_device_driver); +} + +static void __exit sh_tmu_exit(void) +{ + platform_driver_unregister(&sh_tmu_device_driver); +} + +early_platform_init("earlytimer", &sh_tmu_device_driver); +module_init(sh_tmu_init); +module_exit(sh_tmu_exit); + +MODULE_AUTHOR("Magnus Damm"); +MODULE_DESCRIPTION("SuperH TMU Timer Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 47d2ad0ae07..6e2ec0b1894 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -808,7 +808,7 @@ static int cpufreq_add_dev(struct sys_device *sys_dev) ret = -ENOMEM; goto nomem_out; } - if (!alloc_cpumask_var(&policy->related_cpus, GFP_KERNEL)) { + if (!zalloc_cpumask_var(&policy->related_cpus, GFP_KERNEL)) { free_cpumask_var(policy->cpus); kfree(policy); ret = -ENOMEM; diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig index 956982f8739..ab4f3592a11 100644 --- a/drivers/edac/Kconfig +++ b/drivers/edac/Kconfig @@ -49,7 +49,6 @@ config EDAC_DEBUG_VERBOSE config EDAC_MM_EDAC tristate "Main Memory EDAC (Error Detection And Correction) reporting" - default y help Some systems are able to detect and correct errors in main memory. EDAC can report statistics on memory error @@ -58,6 +57,31 @@ config EDAC_MM_EDAC occurred so that a particular failing memory module can be replaced. If unsure, select 'Y'. +config EDAC_AMD64 + tristate "AMD64 (Opteron, Athlon64) K8, F10h, F11h" + depends on EDAC_MM_EDAC && K8_NB && X86_64 && PCI + help + Support for error detection and correction on the AMD 64 + Families of Memory Controllers (K8, F10h and F11h) + +config EDAC_AMD64_ERROR_INJECTION + bool "Sysfs Error Injection facilities" + depends on EDAC_AMD64 + help + Recent Opterons (Family 10h and later) provide for Memory Error + Injection into the ECC detection circuits. The amd64_edac module + allows the operator/user to inject Uncorrectable and Correctable + errors into DRAM. + + When enabled, in each of the respective memory controller directories + (/sys/devices/system/edac/mc/mcX), there are 3 input files: + + - inject_section (0..3, 16-byte section of 64-byte cacheline), + - inject_word (0..8, 16-bit word of 16-byte section), + - inject_ecc_vector (hex ecc vector: select bits of inject word) + + In addition, there are two control files, inject_read and inject_write, + which trigger the DRAM ECC Read and Write respectively. config EDAC_AMD76X tristate "AMD 76x (760, 762, 768)" diff --git a/drivers/edac/Makefile b/drivers/edac/Makefile index 59076819135..633dc5604ee 100644 --- a/drivers/edac/Makefile +++ b/drivers/edac/Makefile @@ -30,6 +30,13 @@ obj-$(CONFIG_EDAC_I3000) += i3000_edac.o obj-$(CONFIG_EDAC_X38) += x38_edac.o obj-$(CONFIG_EDAC_I82860) += i82860_edac.o obj-$(CONFIG_EDAC_R82600) += r82600_edac.o + +amd64_edac_mod-y := amd64_edac_err_types.o amd64_edac.o +amd64_edac_mod-$(CONFIG_EDAC_DEBUG) += amd64_edac_dbg.o +amd64_edac_mod-$(CONFIG_EDAC_AMD64_ERROR_INJECTION) += amd64_edac_inj.o + +obj-$(CONFIG_EDAC_AMD64) += amd64_edac_mod.o + obj-$(CONFIG_EDAC_PASEMI) += pasemi_edac.o obj-$(CONFIG_EDAC_MPC85XX) += mpc85xx_edac.o obj-$(CONFIG_EDAC_MV64X60) += mv64x60_edac.o diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c new file mode 100644 index 00000000000..c36bf40568c --- /dev/null +++ b/drivers/edac/amd64_edac.c @@ -0,0 +1,3354 @@ +#include "amd64_edac.h" +#include <asm/k8.h> + +static struct edac_pci_ctl_info *amd64_ctl_pci; + +static int report_gart_errors; +module_param(report_gart_errors, int, 0644); + +/* + * Set by command line parameter. If BIOS has enabled the ECC, this override is + * cleared to prevent re-enabling the hardware by this driver. + */ +static int ecc_enable_override; +module_param(ecc_enable_override, int, 0644); + +/* Lookup table for all possible MC control instances */ +struct amd64_pvt; +static struct mem_ctl_info *mci_lookup[MAX_NUMNODES]; +static struct amd64_pvt *pvt_lookup[MAX_NUMNODES]; + +/* + * Memory scrubber control interface. For K8, memory scrubbing is handled by + * hardware and can involve L2 cache, dcache as well as the main memory. With + * F10, this is extended to L3 cache scrubbing on CPU models sporting that + * functionality. + * + * This causes the "units" for the scrubbing speed to vary from 64 byte blocks + * (dram) over to cache lines. This is nasty, so we will use bandwidth in + * bytes/sec for the setting. + * + * Currently, we only do dram scrubbing. If the scrubbing is done in software on + * other archs, we might not have access to the caches directly. + */ + +/* + * scan the scrub rate mapping table for a close or matching bandwidth value to + * issue. If requested is too big, then use last maximum value found. + */ +static int amd64_search_set_scrub_rate(struct pci_dev *ctl, u32 new_bw, + u32 min_scrubrate) +{ + u32 scrubval; + int i; + + /* + * map the configured rate (new_bw) to a value specific to the AMD64 + * memory controller and apply to register. Search for the first + * bandwidth entry that is greater or equal than the setting requested + * and program that. If at last entry, turn off DRAM scrubbing. + */ + for (i = 0; i < ARRAY_SIZE(scrubrates); i++) { + /* + * skip scrub rates which aren't recommended + * (see F10 BKDG, F3x58) + */ + if (scrubrates[i].scrubval < min_scrubrate) + continue; + + if (scrubrates[i].bandwidth <= new_bw) + break; + + /* + * if no suitable bandwidth found, turn off DRAM scrubbing + * entirely by falling back to the last element in the + * scrubrates array. + */ + } + + scrubval = scrubrates[i].scrubval; + if (scrubval) + edac_printk(KERN_DEBUG, EDAC_MC, + "Setting scrub rate bandwidth: %u\n", + scrubrates[i].bandwidth); + else + edac_printk(KERN_DEBUG, EDAC_MC, "Turning scrubbing off.\n"); + + pci_write_bits32(ctl, K8_SCRCTRL, scrubval, 0x001F); + + return 0; +} + +static int amd64_set_scrub_rate(struct mem_ctl_info *mci, u32 *bandwidth) +{ + struct amd64_pvt *pvt = mci->pvt_info; + u32 min_scrubrate = 0x0; + + switch (boot_cpu_data.x86) { + case 0xf: + min_scrubrate = K8_MIN_SCRUB_RATE_BITS; + break; + case 0x10: + min_scrubrate = F10_MIN_SCRUB_RATE_BITS; + break; + case 0x11: + min_scrubrate = F11_MIN_SCRUB_RATE_BITS; + break; + + default: + amd64_printk(KERN_ERR, "Unsupported family!\n"); + break; + } + return amd64_search_set_scrub_rate(pvt->misc_f3_ctl, *bandwidth, + min_scrubrate); +} + +static int amd64_get_scrub_rate(struct mem_ctl_info *mci, u32 *bw) +{ + struct amd64_pvt *pvt = mci->pvt_info; + u32 scrubval = 0; + int status = -1, i, ret = 0; + + ret = pci_read_config_dword(pvt->misc_f3_ctl, K8_SCRCTRL, &scrubval); + if (ret) + debugf0("Reading K8_SCRCTRL failed\n"); + + scrubval = scrubval & 0x001F; + + edac_printk(KERN_DEBUG, EDAC_MC, + "pci-read, sdram scrub control value: %d \n", scrubval); + + for (i = 0; ARRAY_SIZE(scrubrates); i++) { + if (scrubrates[i].scrubval == scrubval) { + *bw = scrubrates[i].bandwidth; + status = 0; + break; + } + } + + return status; +} + +/* Map from a CSROW entry to the mask entry that operates on it */ +static inline u32 amd64_map_to_dcs_mask(struct amd64_pvt *pvt, int csrow) +{ + return csrow >> (pvt->num_dcsm >> 3); +} + +/* return the 'base' address the i'th CS entry of the 'dct' DRAM controller */ +static u32 amd64_get_dct_base(struct amd64_pvt *pvt, int dct, int csrow) +{ + if (dct == 0) + return pvt->dcsb0[csrow]; + else + return pvt->dcsb1[csrow]; +} + +/* + * Return the 'mask' address the i'th CS entry. This function is needed because + * there number of DCSM registers on Rev E and prior vs Rev F and later is + * different. + */ +static u32 amd64_get_dct_mask(struct amd64_pvt *pvt, int dct, int csrow) +{ + if (dct == 0) + return pvt->dcsm0[amd64_map_to_dcs_mask(pvt, csrow)]; + else + return pvt->dcsm1[amd64_map_to_dcs_mask(pvt, csrow)]; +} + + +/* + * In *base and *limit, pass back the full 40-bit base and limit physical + * addresses for the node given by node_id. This information is obtained from + * DRAM Base (section 3.4.4.1) and DRAM Limit (section 3.4.4.2) registers. The + * base and limit addresses are of type SysAddr, as defined at the start of + * section 3.4.4 (p. 70). They are the lowest and highest physical addresses + * in the address range they represent. + */ +static void amd64_get_base_and_limit(struct amd64_pvt *pvt, int node_id, + u64 *base, u64 *limit) +{ + *base = pvt->dram_base[node_id]; + *limit = pvt->dram_limit[node_id]; +} + +/* + * Return 1 if the SysAddr given by sys_addr matches the base/limit associated + * with node_id + */ +static int amd64_base_limit_match(struct amd64_pvt *pvt, + u64 sys_addr, int node_id) +{ + u64 base, limit, addr; + + amd64_get_base_and_limit(pvt, node_id, &base, &limit); + + /* The K8 treats this as a 40-bit value. However, bits 63-40 will be + * all ones if the most significant implemented address bit is 1. + * Here we discard bits 63-40. See section 3.4.2 of AMD publication + * 24592: AMD x86-64 Architecture Programmer's Manual Volume 1 + * Application Programming. + */ + addr = sys_addr & 0x000000ffffffffffull; + + return (addr >= base) && (addr <= limit); +} + +/* + * Attempt to map a SysAddr to a node. On success, return a pointer to the + * mem_ctl_info structure for the node that the SysAddr maps to. + * + * On failure, return NULL. + */ +static struct mem_ctl_info *find_mc_by_sys_addr(struct mem_ctl_info *mci, + u64 sys_addr) +{ + struct amd64_pvt *pvt; + int node_id; + u32 intlv_en, bits; + + /* + * Here we use the DRAM Base (section 3.4.4.1) and DRAM Limit (section + * 3.4.4.2) registers to map the SysAddr to a node ID. + */ + pvt = mci->pvt_info; + + /* + * The value of this field should be the same for all DRAM Base + * registers. Therefore we arbitrarily choose to read it from the + * register for node 0. + */ + intlv_en = pvt->dram_IntlvEn[0]; + + if (intlv_en == 0) { + for (node_id = 0; ; ) { + if (amd64_base_limit_match(pvt, sys_addr, node_id)) + break; + + if (++node_id >= DRAM_REG_COUNT) + goto err_no_match; + } + goto found; + } + + if (unlikely((intlv_en != (0x01 << 8)) && + (intlv_en != (0x03 << 8)) && + (intlv_en != (0x07 << 8)))) { + amd64_printk(KERN_WARNING, "junk value of 0x%x extracted from " + "IntlvEn field of DRAM Base Register for node 0: " + "This probably indicates a BIOS bug.\n", intlv_en); + return NULL; + } + + bits = (((u32) sys_addr) >> 12) & intlv_en; + + for (node_id = 0; ; ) { + if ((pvt->dram_limit[node_id] & intlv_en) == bits) + break; /* intlv_sel field matches */ + + if (++node_id >= DRAM_REG_COUNT) + goto err_no_match; + } + + /* sanity test for sys_addr */ + if (unlikely(!amd64_base_limit_match(pvt, sys_addr, node_id))) { + amd64_printk(KERN_WARNING, + "%s(): sys_addr 0x%lx falls outside base/limit " + "address range for node %d with node interleaving " + "enabled.\n", __func__, (unsigned long)sys_addr, + node_id); + return NULL; + } + +found: + return edac_mc_find(node_id); + +err_no_match: + debugf2("sys_addr 0x%lx doesn't match any node\n", + (unsigned long)sys_addr); + + return NULL; +} + +/* + * Extract the DRAM CS base address from selected csrow register. + */ +static u64 base_from_dct_base(struct amd64_pvt *pvt, int csrow) +{ + return ((u64) (amd64_get_dct_base(pvt, 0, csrow) & pvt->dcsb_base)) << + pvt->dcs_shift; +} + +/* + * Extract the mask from the dcsb0[csrow] entry in a CPU revision-specific way. + */ +static u64 mask_from_dct_mask(struct amd64_pvt *pvt, int csrow) +{ + u64 dcsm_bits, other_bits; + u64 mask; + + /* Extract bits from DRAM CS Mask. */ + dcsm_bits = amd64_get_dct_mask(pvt, 0, csrow) & pvt->dcsm_mask; + + other_bits = pvt->dcsm_mask; + other_bits = ~(other_bits << pvt->dcs_shift); + + /* + * The extracted bits from DCSM belong in the spaces represented by + * the cleared bits in other_bits. + */ + mask = (dcsm_bits << pvt->dcs_shift) | other_bits; + + return mask; +} + +/* + * @input_addr is an InputAddr associated with the node given by mci. Return the + * csrow that input_addr maps to, or -1 on failure (no csrow claims input_addr). + */ +static int input_addr_to_csrow(struct mem_ctl_info *mci, u64 input_addr) +{ + struct amd64_pvt *pvt; + int csrow; + u64 base, mask; + + pvt = mci->pvt_info; + + /* + * Here we use the DRAM CS Base and DRAM CS Mask registers. For each CS + * base/mask register pair, test the condition shown near the start of + * section 3.5.4 (p. 84, BKDG #26094, K8, revA-E). + */ + for (csrow = 0; csrow < CHIPSELECT_COUNT; csrow++) { + + /* This DRAM chip select is disabled on this node */ + if ((pvt->dcsb0[csrow] & K8_DCSB_CS_ENABLE) == 0) + continue; + + base = base_from_dct_base(pvt, csrow); + mask = ~mask_from_dct_mask(pvt, csrow); + + if ((input_addr & mask) == (base & mask)) { + debugf2("InputAddr 0x%lx matches csrow %d (node %d)\n", + (unsigned long)input_addr, csrow, + pvt->mc_node_id); + + return csrow; + } + } + + debugf2("no matching csrow for InputAddr 0x%lx (MC node %d)\n", + (unsigned long)input_addr, pvt->mc_node_id); + + return -1; +} + +/* + * Return the base value defined by the DRAM Base register for the node + * represented by mci. This function returns the full 40-bit value despite the + * fact that the register only stores bits 39-24 of the value. See section + * 3.4.4.1 (BKDG #26094, K8, revA-E) + */ +static inline u64 get_dram_base(struct mem_ctl_info *mci) +{ + struct amd64_pvt *pvt = mci->pvt_info; + + return pvt->dram_base[pvt->mc_node_id]; +} + +/* + * Obtain info from the DRAM Hole Address Register (section 3.4.8, pub #26094) + * for the node represented by mci. Info is passed back in *hole_base, + * *hole_offset, and *hole_size. Function returns 0 if info is valid or 1 if + * info is invalid. Info may be invalid for either of the following reasons: + * + * - The revision of the node is not E or greater. In this case, the DRAM Hole + * Address Register does not exist. + * + * - The DramHoleValid bit is cleared in the DRAM Hole Address Register, + * indicating that its contents are not valid. + * + * The values passed back in *hole_base, *hole_offset, and *hole_size are + * complete 32-bit values despite the fact that the bitfields in the DHAR + * only represent bits 31-24 of the base and offset values. + */ +int amd64_get_dram_hole_info(struct mem_ctl_info *mci, u64 *hole_base, + u64 *hole_offset, u64 *hole_size) +{ + struct amd64_pvt *pvt = mci->pvt_info; + u64 base; + + /* only revE and later have the DRAM Hole Address Register */ + if (boot_cpu_data.x86 == 0xf && pvt->ext_model < OPTERON_CPU_REV_E) { + debugf1(" revision %d for node %d does not support DHAR\n", + pvt->ext_model, pvt->mc_node_id); + return 1; + } + + /* only valid for Fam10h */ + if (boot_cpu_data.x86 == 0x10 && + (pvt->dhar & F10_DRAM_MEM_HOIST_VALID) == 0) { + debugf1(" Dram Memory Hoisting is DISABLED on this system\n"); + return 1; + } + + if ((pvt->dhar & DHAR_VALID) == 0) { + debugf1(" Dram Memory Hoisting is DISABLED on this node %d\n", + pvt->mc_node_id); + return 1; + } + + /* This node has Memory Hoisting */ + + /* +------------------+--------------------+--------------------+----- + * | memory | DRAM hole | relocated | + * | [0, (x - 1)] | [x, 0xffffffff] | addresses from | + * | | | DRAM hole | + * | | | [0x100000000, | + * | | | (0x100000000+ | + * | | | (0xffffffff-x))] | + * +------------------+--------------------+--------------------+----- + * + * Above is a diagram of physical memory showing the DRAM hole and the + * relocated addresses from the DRAM hole. As shown, the DRAM hole + * starts at address x (the base address) and extends through address + * 0xffffffff. The DRAM Hole Address Register (DHAR) relocates the + * addresses in the hole so that they start at 0x100000000. + */ + + base = dhar_base(pvt->dhar); + + *hole_base = base; + *hole_size = (0x1ull << 32) - base; + + if (boot_cpu_data.x86 > 0xf) + *hole_offset = f10_dhar_offset(pvt->dhar); + else + *hole_offset = k8_dhar_offset(pvt->dhar); + + debugf1(" DHAR info for node %d base 0x%lx offset 0x%lx size 0x%lx\n", + pvt->mc_node_id, (unsigned long)*hole_base, + (unsigned long)*hole_offset, (unsigned long)*hole_size); + + return 0; +} +EXPORT_SYMBOL_GPL(amd64_get_dram_hole_info); + +/* + * Return the DramAddr that the SysAddr given by @sys_addr maps to. It is + * assumed that sys_addr maps to the node given by mci. + * + * The first part of section 3.4.4 (p. 70) shows how the DRAM Base (section + * 3.4.4.1) and DRAM Limit (section 3.4.4.2) registers are used to translate a + * SysAddr to a DramAddr. If the DRAM Hole Address Register (DHAR) is enabled, + * then it is also involved in translating a SysAddr to a DramAddr. Sections + * 3.4.8 and 3.5.8.2 describe the DHAR and how it is used for memory hoisting. + * These parts of the documentation are unclear. I interpret them as follows: + * + * When node n receives a SysAddr, it processes the SysAddr as follows: + * + * 1. It extracts the DRAMBase and DRAMLimit values from the DRAM Base and DRAM + * Limit registers for node n. If the SysAddr is not within the range + * specified by the base and limit values, then node n ignores the Sysaddr + * (since it does not map to node n). Otherwise continue to step 2 below. + * + * 2. If the DramHoleValid bit of the DHAR for node n is clear, the DHAR is + * disabled so skip to step 3 below. Otherwise see if the SysAddr is within + * the range of relocated addresses (starting at 0x100000000) from the DRAM + * hole. If not, skip to step 3 below. Else get the value of the + * DramHoleOffset field from the DHAR. To obtain the DramAddr, subtract the + * offset defined by this value from the SysAddr. + * + * 3. Obtain the base address for node n from the DRAMBase field of the DRAM + * Base register for node n. To obtain the DramAddr, subtract the base + * address from the SysAddr, as shown near the start of section 3.4.4 (p.70). + */ +static u64 sys_addr_to_dram_addr(struct mem_ctl_info *mci, u64 sys_addr) +{ + u64 dram_base, hole_base, hole_offset, hole_size, dram_addr; + int ret = 0; + + dram_base = get_dram_base(mci); + + ret = amd64_get_dram_hole_info(mci, &hole_base, &hole_offset, + &hole_size); + if (!ret) { + if ((sys_addr >= (1ull << 32)) && + (sys_addr < ((1ull << 32) + hole_size))) { + /* use DHAR to translate SysAddr to DramAddr */ + dram_addr = sys_addr - hole_offset; + + debugf2("using DHAR to translate SysAddr 0x%lx to " + "DramAddr 0x%lx\n", + (unsigned long)sys_addr, + (unsigned long)dram_addr); + + return dram_addr; + } + } + + /* + * Translate the SysAddr to a DramAddr as shown near the start of + * section 3.4.4 (p. 70). Although sys_addr is a 64-bit value, the k8 + * only deals with 40-bit values. Therefore we discard bits 63-40 of + * sys_addr below. If bit 39 of sys_addr is 1 then the bits we + * discard are all 1s. Otherwise the bits we discard are all 0s. See + * section 3.4.2 of AMD publication 24592: AMD x86-64 Architecture + * Programmer's Manual Volume 1 Application Programming. + */ + dram_addr = (sys_addr & 0xffffffffffull) - dram_base; + + debugf2("using DRAM Base register to translate SysAddr 0x%lx to " + "DramAddr 0x%lx\n", (unsigned long)sys_addr, + (unsigned long)dram_addr); + return dram_addr; +} + +/* + * @intlv_en is the value of the IntlvEn field from a DRAM Base register + * (section 3.4.4.1). Return the number of bits from a SysAddr that are used + * for node interleaving. + */ +static int num_node_interleave_bits(unsigned intlv_en) +{ + static const int intlv_shift_table[] = { 0, 1, 0, 2, 0, 0, 0, 3 }; + int n; + + BUG_ON(intlv_en > 7); + n = intlv_shift_table[intlv_en]; + return n; +} + +/* Translate the DramAddr given by @dram_addr to an InputAddr. */ +static u64 dram_addr_to_input_addr(struct mem_ctl_info *mci, u64 dram_addr) +{ + struct amd64_pvt *pvt; + int intlv_shift; + u64 input_addr; + + pvt = mci->pvt_info; + + /* + * See the start of section 3.4.4 (p. 70, BKDG #26094, K8, revA-E) + * concerning translating a DramAddr to an InputAddr. + */ + intlv_shift = num_node_interleave_bits(pvt->dram_IntlvEn[0]); + input_addr = ((dram_addr >> intlv_shift) & 0xffffff000ull) + + (dram_addr & 0xfff); + + debugf2(" Intlv Shift=%d DramAddr=0x%lx maps to InputAddr=0x%lx\n", + intlv_shift, (unsigned long)dram_addr, + (unsigned long)input_addr); + + return input_addr; +} + +/* + * Translate the SysAddr represented by @sys_addr to an InputAddr. It is + * assumed that @sys_addr maps to the node given by mci. + */ +static u64 sys_addr_to_input_addr(struct mem_ctl_info *mci, u64 sys_addr) +{ + u64 input_addr; + + input_addr = + dram_addr_to_input_addr(mci, sys_addr_to_dram_addr(mci, sys_addr)); + + debugf2("SysAdddr 0x%lx translates to InputAddr 0x%lx\n", + (unsigned long)sys_addr, (unsigned long)input_addr); + + return input_addr; +} + + +/* + * @input_addr is an InputAddr associated with the node represented by mci. + * Translate @input_addr to a DramAddr and return the result. + */ +static u64 input_addr_to_dram_addr(struct mem_ctl_info *mci, u64 input_addr) +{ + struct amd64_pvt *pvt; + int node_id, intlv_shift; + u64 bits, dram_addr; + u32 intlv_sel; + + /* + * Near the start of section 3.4.4 (p. 70, BKDG #26094, K8, revA-E) + * shows how to translate a DramAddr to an InputAddr. Here we reverse + * this procedure. When translating from a DramAddr to an InputAddr, the + * bits used for node interleaving are discarded. Here we recover these + * bits from the IntlvSel field of the DRAM Limit register (section + * 3.4.4.2) for the node that input_addr is associated with. + */ + pvt = mci->pvt_info; + node_id = pvt->mc_node_id; + BUG_ON((node_id < 0) || (node_id > 7)); + + intlv_shift = num_node_interleave_bits(pvt->dram_IntlvEn[0]); + + if (intlv_shift == 0) { + debugf1(" InputAddr 0x%lx translates to DramAddr of " + "same value\n", (unsigned long)input_addr); + + return input_addr; + } + + bits = ((input_addr & 0xffffff000ull) << intlv_shift) + + (input_addr & 0xfff); + + intlv_sel = pvt->dram_IntlvSel[node_id] & ((1 << intlv_shift) - 1); + dram_addr = bits + (intlv_sel << 12); + + debugf1("InputAddr 0x%lx translates to DramAddr 0x%lx " + "(%d node interleave bits)\n", (unsigned long)input_addr, + (unsigned long)dram_addr, intlv_shift); + + return dram_addr; +} + +/* + * @dram_addr is a DramAddr that maps to the node represented by mci. Convert + * @dram_addr to a SysAddr. + */ +static u64 dram_addr_to_sys_addr(struct mem_ctl_info *mci, u64 dram_addr) +{ + struct amd64_pvt *pvt = mci->pvt_info; + u64 hole_base, hole_offset, hole_size, base, limit, sys_addr; + int ret = 0; + + ret = amd64_get_dram_hole_info(mci, &hole_base, &hole_offset, + &hole_size); + if (!ret) { + if ((dram_addr >= hole_base) && + (dram_addr < (hole_base + hole_size))) { + sys_addr = dram_addr + hole_offset; + + debugf1("using DHAR to translate DramAddr 0x%lx to " + "SysAddr 0x%lx\n", (unsigned long)dram_addr, + (unsigned long)sys_addr); + + return sys_addr; + } + } + + amd64_get_base_and_limit(pvt, pvt->mc_node_id, &base, &limit); + sys_addr = dram_addr + base; + + /* + * The sys_addr we have computed up to this point is a 40-bit value + * because the k8 deals with 40-bit values. However, the value we are + * supposed to return is a full 64-bit physical address. The AMD + * x86-64 architecture specifies that the most significant implemented + * address bit through bit 63 of a physical address must be either all + * 0s or all 1s. Therefore we sign-extend the 40-bit sys_addr to a + * 64-bit value below. See section 3.4.2 of AMD publication 24592: + * AMD x86-64 Architecture Programmer's Manual Volume 1 Application + * Programming. + */ + sys_addr |= ~((sys_addr & (1ull << 39)) - 1); + + debugf1(" Node %d, DramAddr 0x%lx to SysAddr 0x%lx\n", + pvt->mc_node_id, (unsigned long)dram_addr, + (unsigned long)sys_addr); + + return sys_addr; +} + +/* + * @input_addr is an InputAddr associated with the node given by mci. Translate + * @input_addr to a SysAddr. + */ +static inline u64 input_addr_to_sys_addr(struct mem_ctl_info *mci, + u64 input_addr) +{ + return dram_addr_to_sys_addr(mci, + input_addr_to_dram_addr(mci, input_addr)); +} + +/* + * Find the minimum and maximum InputAddr values that map to the given @csrow. + * Pass back these values in *input_addr_min and *input_addr_max. + */ +static void find_csrow_limits(struct mem_ctl_info *mci, int csrow, + u64 *input_addr_min, u64 *input_addr_max) +{ + struct amd64_pvt *pvt; + u64 base, mask; + + pvt = mci->pvt_info; + BUG_ON((csrow < 0) || (csrow >= CHIPSELECT_COUNT)); + + base = base_from_dct_base(pvt, csrow); + mask = mask_from_dct_mask(pvt, csrow); + + *input_addr_min = base & ~mask; + *input_addr_max = base | mask | pvt->dcs_mask_notused; +} + +/* + * Extract error address from MCA NB Address Low (section 3.6.4.5) and MCA NB + * Address High (section 3.6.4.6) register values and return the result. Address + * is located in the info structure (nbeah and nbeal), the encoding is device + * specific. + */ +static u64 extract_error_address(struct mem_ctl_info *mci, + struct amd64_error_info_regs *info) +{ + struct amd64_pvt *pvt = mci->pvt_info; + + return pvt->ops->get_error_address(mci, info); +} + + +/* Map the Error address to a PAGE and PAGE OFFSET. */ +static inline void error_address_to_page_and_offset(u64 error_address, + u32 *page, u32 *offset) +{ + *page = (u32) (error_address >> PAGE_SHIFT); + *offset = ((u32) error_address) & ~PAGE_MASK; +} + +/* + * @sys_addr is an error address (a SysAddr) extracted from the MCA NB Address + * Low (section 3.6.4.5) and MCA NB Address High (section 3.6.4.6) registers + * of a node that detected an ECC memory error. mci represents the node that + * the error address maps to (possibly different from the node that detected + * the error). Return the number of the csrow that sys_addr maps to, or -1 on + * error. + */ +static int sys_addr_to_csrow(struct mem_ctl_info *mci, u64 sys_addr) +{ + int csrow; + + csrow = input_addr_to_csrow(mci, sys_addr_to_input_addr(mci, sys_addr)); + + if (csrow == -1) + amd64_mc_printk(mci, KERN_ERR, + "Failed to translate InputAddr to csrow for " + "address 0x%lx\n", (unsigned long)sys_addr); + return csrow; +} + +static int get_channel_from_ecc_syndrome(unsigned short syndrome); + +static void amd64_cpu_display_info(struct amd64_pvt *pvt) +{ + if (boot_cpu_data.x86 == 0x11) + edac_printk(KERN_DEBUG, EDAC_MC, "F11h CPU detected\n"); + else if (boot_cpu_data.x86 == 0x10) + edac_printk(KERN_DEBUG, EDAC_MC, "F10h CPU detected\n"); + else if (boot_cpu_data.x86 == 0xf) + edac_printk(KERN_DEBUG, EDAC_MC, "%s detected\n", + (pvt->ext_model >= OPTERON_CPU_REV_F) ? + "Rev F or later" : "Rev E or earlier"); + else + /* we'll hardly ever ever get here */ + edac_printk(KERN_ERR, EDAC_MC, "Unknown cpu!\n"); +} + +/* + * Determine if the DIMMs have ECC enabled. ECC is enabled ONLY if all the DIMMs + * are ECC capable. + */ +static enum edac_type amd64_determine_edac_cap(struct amd64_pvt *pvt) +{ + int bit; + enum dev_type edac_cap = EDAC_NONE; + + bit = (boot_cpu_data.x86 > 0xf || pvt->ext_model >= OPTERON_CPU_REV_F) + ? 19 + : 17; + + if (pvt->dclr0 >> BIT(bit)) + edac_cap = EDAC_FLAG_SECDED; + + return edac_cap; +} + + +static void f10_debug_display_dimm_sizes(int ctrl, struct amd64_pvt *pvt, + int ganged); + +/* Display and decode various NB registers for debug purposes. */ +static void amd64_dump_misc_regs(struct amd64_pvt *pvt) +{ + int ganged; + + debugf1(" nbcap:0x%8.08x DctDualCap=%s DualNode=%s 8-Node=%s\n", + pvt->nbcap, + (pvt->nbcap & K8_NBCAP_DCT_DUAL) ? "True" : "False", + (pvt->nbcap & K8_NBCAP_DUAL_NODE) ? "True" : "False", + (pvt->nbcap & K8_NBCAP_8_NODE) ? "True" : "False"); + debugf1(" ECC Capable=%s ChipKill Capable=%s\n", + (pvt->nbcap & K8_NBCAP_SECDED) ? "True" : "False", + (pvt->nbcap & K8_NBCAP_CHIPKILL) ? "True" : "False"); + debugf1(" DramCfg0-low=0x%08x DIMM-ECC=%s Parity=%s Width=%s\n", + pvt->dclr0, + (pvt->dclr0 & BIT(19)) ? "Enabled" : "Disabled", + (pvt->dclr0 & BIT(8)) ? "Enabled" : "Disabled", + (pvt->dclr0 & BIT(11)) ? "128b" : "64b"); + debugf1(" DIMM x4 Present: L0=%s L1=%s L2=%s L3=%s DIMM Type=%s\n", + (pvt->dclr0 & BIT(12)) ? "Y" : "N", + (pvt->dclr0 & BIT(13)) ? "Y" : "N", + (pvt->dclr0 & BIT(14)) ? "Y" : "N", + (pvt->dclr0 & BIT(15)) ? "Y" : "N", + (pvt->dclr0 & BIT(16)) ? "UN-Buffered" : "Buffered"); + + + debugf1(" online-spare: 0x%8.08x\n", pvt->online_spare); + + if (boot_cpu_data.x86 == 0xf) { + debugf1(" dhar: 0x%8.08x Base=0x%08x Offset=0x%08x\n", + pvt->dhar, dhar_base(pvt->dhar), + k8_dhar_offset(pvt->dhar)); + debugf1(" DramHoleValid=%s\n", + (pvt->dhar & DHAR_VALID) ? "True" : "False"); + + debugf1(" dbam-dkt: 0x%8.08x\n", pvt->dbam0); + + /* everything below this point is Fam10h and above */ + return; + + } else { + debugf1(" dhar: 0x%8.08x Base=0x%08x Offset=0x%08x\n", + pvt->dhar, dhar_base(pvt->dhar), + f10_dhar_offset(pvt->dhar)); + debugf1(" DramMemHoistValid=%s DramHoleValid=%s\n", + (pvt->dhar & F10_DRAM_MEM_HOIST_VALID) ? + "True" : "False", + (pvt->dhar & DHAR_VALID) ? + "True" : "False"); + } + + /* Only if NOT ganged does dcl1 have valid info */ + if (!dct_ganging_enabled(pvt)) { + debugf1(" DramCfg1-low=0x%08x DIMM-ECC=%s Parity=%s " + "Width=%s\n", pvt->dclr1, + (pvt->dclr1 & BIT(19)) ? "Enabled" : "Disabled", + (pvt->dclr1 & BIT(8)) ? "Enabled" : "Disabled", + (pvt->dclr1 & BIT(11)) ? "128b" : "64b"); + debugf1(" DIMM x4 Present: L0=%s L1=%s L2=%s L3=%s " + "DIMM Type=%s\n", + (pvt->dclr1 & BIT(12)) ? "Y" : "N", + (pvt->dclr1 & BIT(13)) ? "Y" : "N", + (pvt->dclr1 & BIT(14)) ? "Y" : "N", + (pvt->dclr1 & BIT(15)) ? "Y" : "N", + (pvt->dclr1 & BIT(16)) ? "UN-Buffered" : "Buffered"); + } + + /* + * Determine if ganged and then dump memory sizes for first controller, + * and if NOT ganged dump info for 2nd controller. + */ + ganged = dct_ganging_enabled(pvt); + + f10_debug_display_dimm_sizes(0, pvt, ganged); + + if (!ganged) + f10_debug_display_dimm_sizes(1, pvt, ganged); +} + +/* Read in both of DBAM registers */ +static void amd64_read_dbam_reg(struct amd64_pvt *pvt) +{ + int err = 0; + unsigned int reg; + + reg = DBAM0; + err = pci_read_config_dword(pvt->dram_f2_ctl, reg, &pvt->dbam0); + if (err) + goto err_reg; + + if (boot_cpu_data.x86 >= 0x10) { + reg = DBAM1; + err = pci_read_config_dword(pvt->dram_f2_ctl, reg, &pvt->dbam1); + + if (err) + goto err_reg; + } + +err_reg: + debugf0("Error reading F2x%03x.\n", reg); +} + +/* + * NOTE: CPU Revision Dependent code: Rev E and Rev F + * + * Set the DCSB and DCSM mask values depending on the CPU revision value. Also + * set the shift factor for the DCSB and DCSM values. + * + * ->dcs_mask_notused, RevE: + * + * To find the max InputAddr for the csrow, start with the base address and set + * all bits that are "don't care" bits in the test at the start of section + * 3.5.4 (p. 84). + * + * The "don't care" bits are all set bits in the mask and all bits in the gaps + * between bit ranges [35:25] and [19:13]. The value REV_E_DCS_NOTUSED_BITS + * represents bits [24:20] and [12:0], which are all bits in the above-mentioned + * gaps. + * + * ->dcs_mask_notused, RevF and later: + * + * To find the max InputAddr for the csrow, start with the base address and set + * all bits that are "don't care" bits in the test at the start of NPT section + * 4.5.4 (p. 87). + * + * The "don't care" bits are all set bits in the mask and all bits in the gaps + * between bit ranges [36:27] and [21:13]. + * + * The value REV_F_F1Xh_DCS_NOTUSED_BITS represents bits [26:22] and [12:0], + * which are all bits in the above-mentioned gaps. + */ +static void amd64_set_dct_base_and_mask(struct amd64_pvt *pvt) +{ + if (pvt->ext_model >= OPTERON_CPU_REV_F) { + pvt->dcsb_base = REV_F_F1Xh_DCSB_BASE_BITS; + pvt->dcsm_mask = REV_F_F1Xh_DCSM_MASK_BITS; + pvt->dcs_mask_notused = REV_F_F1Xh_DCS_NOTUSED_BITS; + pvt->dcs_shift = REV_F_F1Xh_DCS_SHIFT; + + switch (boot_cpu_data.x86) { + case 0xf: + pvt->num_dcsm = REV_F_DCSM_COUNT; + break; + + case 0x10: + pvt->num_dcsm = F10_DCSM_COUNT; + break; + + case 0x11: + pvt->num_dcsm = F11_DCSM_COUNT; + break; + + default: + amd64_printk(KERN_ERR, "Unsupported family!\n"); + break; + } + } else { + pvt->dcsb_base = REV_E_DCSB_BASE_BITS; + pvt->dcsm_mask = REV_E_DCSM_MASK_BITS; + pvt->dcs_mask_notused = REV_E_DCS_NOTUSED_BITS; + pvt->dcs_shift = REV_E_DCS_SHIFT; + pvt->num_dcsm = REV_E_DCSM_COUNT; + } +} + +/* + * Function 2 Offset F10_DCSB0; read in the DCS Base and DCS Mask hw registers + */ +static void amd64_read_dct_base_mask(struct amd64_pvt *pvt) +{ + int cs, reg, err = 0; + + amd64_set_dct_base_and_mask(pvt); + + for (cs = 0; cs < CHIPSELECT_COUNT; cs++) { + reg = K8_DCSB0 + (cs * 4); + err = pci_read_config_dword(pvt->dram_f2_ctl, reg, + &pvt->dcsb0[cs]); + if (unlikely(err)) + debugf0("Reading K8_DCSB0[%d] failed\n", cs); + else + debugf0(" DCSB0[%d]=0x%08x reg: F2x%x\n", + cs, pvt->dcsb0[cs], reg); + + /* If DCT are NOT ganged, then read in DCT1's base */ + if (boot_cpu_data.x86 >= 0x10 && !dct_ganging_enabled(pvt)) { + reg = F10_DCSB1 + (cs * 4); + err = pci_read_config_dword(pvt->dram_f2_ctl, reg, + &pvt->dcsb1[cs]); + if (unlikely(err)) + debugf0("Reading F10_DCSB1[%d] failed\n", cs); + else + debugf0(" DCSB1[%d]=0x%08x reg: F2x%x\n", + cs, pvt->dcsb1[cs], reg); + } else { + pvt->dcsb1[cs] = 0; + } + } + + for (cs = 0; cs < pvt->num_dcsm; cs++) { + reg = K8_DCSB0 + (cs * 4); + err = pci_read_config_dword(pvt->dram_f2_ctl, reg, + &pvt->dcsm0[cs]); + if (unlikely(err)) + debugf0("Reading K8_DCSM0 failed\n"); + else + debugf0(" DCSM0[%d]=0x%08x reg: F2x%x\n", + cs, pvt->dcsm0[cs], reg); + + /* If DCT are NOT ganged, then read in DCT1's mask */ + if (boot_cpu_data.x86 >= 0x10 && !dct_ganging_enabled(pvt)) { + reg = F10_DCSM1 + (cs * 4); + err = pci_read_config_dword(pvt->dram_f2_ctl, reg, + &pvt->dcsm1[cs]); + if (unlikely(err)) + debugf0("Reading F10_DCSM1[%d] failed\n", cs); + else + debugf0(" DCSM1[%d]=0x%08x reg: F2x%x\n", + cs, pvt->dcsm1[cs], reg); + } else + pvt->dcsm1[cs] = 0; + } +} + +static enum mem_type amd64_determine_memory_type(struct amd64_pvt *pvt) +{ + enum mem_type type; + + if (boot_cpu_data.x86 >= 0x10 || pvt->ext_model >= OPTERON_CPU_REV_F) { + /* Rev F and later */ + type = (pvt->dclr0 & BIT(16)) ? MEM_DDR2 : MEM_RDDR2; + } else { + /* Rev E and earlier */ + type = (pvt->dclr0 & BIT(18)) ? MEM_DDR : MEM_RDDR; + } + + debugf1(" Memory type is: %s\n", + (type == MEM_DDR2) ? "MEM_DDR2" : + (type == MEM_RDDR2) ? "MEM_RDDR2" : + (type == MEM_DDR) ? "MEM_DDR" : "MEM_RDDR"); + + return type; +} + +/* + * Read the DRAM Configuration Low register. It differs between CG, D & E revs + * and the later RevF memory controllers (DDR vs DDR2) + * + * Return: + * number of memory channels in operation + * Pass back: + * contents of the DCL0_LOW register + */ +static int k8_early_channel_count(struct amd64_pvt *pvt) +{ + int flag, err = 0; + + err = pci_read_config_dword(pvt->dram_f2_ctl, F10_DCLR_0, &pvt->dclr0); + if (err) + return err; + + if ((boot_cpu_data.x86_model >> 4) >= OPTERON_CPU_REV_F) { + /* RevF (NPT) and later */ + flag = pvt->dclr0 & F10_WIDTH_128; + } else { + /* RevE and earlier */ + flag = pvt->dclr0 & REVE_WIDTH_128; + } + + /* not used */ + pvt->dclr1 = 0; + + return (flag) ? 2 : 1; +} + +/* extract the ERROR ADDRESS for the K8 CPUs */ +static u64 k8_get_error_address(struct mem_ctl_info *mci, + struct amd64_error_info_regs *info) +{ + return (((u64) (info->nbeah & 0xff)) << 32) + + (info->nbeal & ~0x03); +} + +/* + * Read the Base and Limit registers for K8 based Memory controllers; extract + * fields from the 'raw' reg into separate data fields + * + * Isolates: BASE, LIMIT, IntlvEn, IntlvSel, RW_EN + */ +static void k8_read_dram_base_limit(struct amd64_pvt *pvt, int dram) +{ + u32 low; + u32 off = dram << 3; /* 8 bytes between DRAM entries */ + int err; + + err = pci_read_config_dword(pvt->addr_f1_ctl, + K8_DRAM_BASE_LOW + off, &low); + if (err) + debugf0("Reading K8_DRAM_BASE_LOW failed\n"); + + /* Extract parts into separate data entries */ + pvt->dram_base[dram] = ((u64) low & 0xFFFF0000) << 8; + pvt->dram_IntlvEn[dram] = (low >> 8) & 0x7; + pvt->dram_rw_en[dram] = (low & 0x3); + + err = pci_read_config_dword(pvt->addr_f1_ctl, + K8_DRAM_LIMIT_LOW + off, &low); + if (err) + debugf0("Reading K8_DRAM_LIMIT_LOW failed\n"); + + /* + * Extract parts into separate data entries. Limit is the HIGHEST memory + * location of the region, so lower 24 bits need to be all ones + */ + pvt->dram_limit[dram] = (((u64) low & 0xFFFF0000) << 8) | 0x00FFFFFF; + pvt->dram_IntlvSel[dram] = (low >> 8) & 0x7; + pvt->dram_DstNode[dram] = (low & 0x7); +} + +static void k8_map_sysaddr_to_csrow(struct mem_ctl_info *mci, + struct amd64_error_info_regs *info, + u64 SystemAddress) +{ + struct mem_ctl_info *src_mci; + unsigned short syndrome; + int channel, csrow; + u32 page, offset; + + /* Extract the syndrome parts and form a 16-bit syndrome */ + syndrome = EXTRACT_HIGH_SYNDROME(info->nbsl) << 8; + syndrome |= EXTRACT_LOW_SYNDROME(info->nbsh); + + /* CHIPKILL enabled */ + if (info->nbcfg & K8_NBCFG_CHIPKILL) { + channel = get_channel_from_ecc_syndrome(syndrome); + if (channel < 0) { + /* + * Syndrome didn't map, so we don't know which of the + * 2 DIMMs is in error. So we need to ID 'both' of them + * as suspect. + */ + amd64_mc_printk(mci, KERN_WARNING, + "unknown syndrome 0x%x - possible error " + "reporting race\n", syndrome); + edac_mc_handle_ce_no_info(mci, EDAC_MOD_STR); + return; + } + } else { + /* + * non-chipkill ecc mode + * + * The k8 documentation is unclear about how to determine the + * channel number when using non-chipkill memory. This method + * was obtained from email communication with someone at AMD. + * (Wish the email was placed in this comment - norsk) + */ + channel = ((SystemAddress & BIT(3)) != 0); + } + + /* + * Find out which node the error address belongs to. This may be + * different from the node that detected the error. + */ + src_mci = find_mc_by_sys_addr(mci, SystemAddress); + if (src_mci) { + amd64_mc_printk(mci, KERN_ERR, + "failed to map error address 0x%lx to a node\n", + (unsigned long)SystemAddress); + edac_mc_handle_ce_no_info(mci, EDAC_MOD_STR); + return; + } + + /* Now map the SystemAddress to a CSROW */ + csrow = sys_addr_to_csrow(src_mci, SystemAddress); + if (csrow < 0) { + edac_mc_handle_ce_no_info(src_mci, EDAC_MOD_STR); + } else { + error_address_to_page_and_offset(SystemAddress, &page, &offset); + + edac_mc_handle_ce(src_mci, page, offset, syndrome, csrow, + channel, EDAC_MOD_STR); + } +} + +/* + * determrine the number of PAGES in for this DIMM's size based on its DRAM + * Address Mapping. + * + * First step is to calc the number of bits to shift a value of 1 left to + * indicate show many pages. Start with the DBAM value as the starting bits, + * then proceed to adjust those shift bits, based on CPU rev and the table. + * See BKDG on the DBAM + */ +static int k8_dbam_map_to_pages(struct amd64_pvt *pvt, int dram_map) +{ + int nr_pages; + + if (pvt->ext_model >= OPTERON_CPU_REV_F) { + nr_pages = 1 << (revf_quad_ddr2_shift[dram_map] - PAGE_SHIFT); + } else { + /* + * RevE and less section; this line is tricky. It collapses the + * table used by RevD and later to one that matches revisions CG + * and earlier. + */ + dram_map -= (pvt->ext_model >= OPTERON_CPU_REV_D) ? + (dram_map > 8 ? 4 : (dram_map > 5 ? + 3 : (dram_map > 2 ? 1 : 0))) : 0; + + /* 25 shift is 32MiB minimum DIMM size in RevE and prior */ + nr_pages = 1 << (dram_map + 25 - PAGE_SHIFT); + } + + return nr_pages; +} + +/* + * Get the number of DCT channels in use. + * + * Return: + * number of Memory Channels in operation + * Pass back: + * contents of the DCL0_LOW register + */ +static int f10_early_channel_count(struct amd64_pvt *pvt) +{ + int err = 0, channels = 0; + u32 dbam; + + err = pci_read_config_dword(pvt->dram_f2_ctl, F10_DCLR_0, &pvt->dclr0); + if (err) + goto err_reg; + + err = pci_read_config_dword(pvt->dram_f2_ctl, F10_DCLR_1, &pvt->dclr1); + if (err) + goto err_reg; + + /* If we are in 128 bit mode, then we are using 2 channels */ + if (pvt->dclr0 & F10_WIDTH_128) { + debugf0("Data WIDTH is 128 bits - 2 channels\n"); + channels = 2; + return channels; + } + + /* + * Need to check if in UN-ganged mode: In such, there are 2 channels, + * but they are NOT in 128 bit mode and thus the above 'dcl0' status bit + * will be OFF. + * + * Need to check DCT0[0] and DCT1[0] to see if only one of them has + * their CSEnable bit on. If so, then SINGLE DIMM case. + */ + debugf0("Data WIDTH is NOT 128 bits - need more decoding\n"); + + /* + * Check DRAM Bank Address Mapping values for each DIMM to see if there + * is more than just one DIMM present in unganged mode. Need to check + * both controllers since DIMMs can be placed in either one. + */ + channels = 0; + err = pci_read_config_dword(pvt->dram_f2_ctl, DBAM0, &dbam); + if (err) + goto err_reg; + + if (DBAM_DIMM(0, dbam) > 0) + channels++; + if (DBAM_DIMM(1, dbam) > 0) + channels++; + if (DBAM_DIMM(2, dbam) > 0) + channels++; + if (DBAM_DIMM(3, dbam) > 0) + channels++; + + /* If more than 2 DIMMs are present, then we have 2 channels */ + if (channels > 2) + channels = 2; + else if (channels == 0) { + /* No DIMMs on DCT0, so look at DCT1 */ + err = pci_read_config_dword(pvt->dram_f2_ctl, DBAM1, &dbam); + if (err) + goto err_reg; + + if (DBAM_DIMM(0, dbam) > 0) + channels++; + if (DBAM_DIMM(1, dbam) > 0) + channels++; + if (DBAM_DIMM(2, dbam) > 0) + channels++; + if (DBAM_DIMM(3, dbam) > 0) + channels++; + + if (channels > 2) + channels = 2; + } + + /* If we found ALL 0 values, then assume just ONE DIMM-ONE Channel */ + if (channels == 0) + channels = 1; + + debugf0("DIMM count= %d\n", channels); + + return channels; + +err_reg: + return -1; + +} + +static int f10_dbam_map_to_pages(struct amd64_pvt *pvt, int dram_map) +{ + return 1 << (revf_quad_ddr2_shift[dram_map] - PAGE_SHIFT); +} + +/* Enable extended configuration access via 0xCF8 feature */ +static void amd64_setup(struct amd64_pvt *pvt) +{ + u32 reg; + + pci_read_config_dword(pvt->misc_f3_ctl, F10_NB_CFG_HIGH, ®); + + pvt->flags.cf8_extcfg = !!(reg & F10_NB_CFG_LOW_ENABLE_EXT_CFG); + reg |= F10_NB_CFG_LOW_ENABLE_EXT_CFG; + pci_write_config_dword(pvt->misc_f3_ctl, F10_NB_CFG_HIGH, reg); +} + +/* Restore the extended configuration access via 0xCF8 feature */ +static void amd64_teardown(struct amd64_pvt *pvt) +{ + u32 reg; + + pci_read_config_dword(pvt->misc_f3_ctl, F10_NB_CFG_HIGH, ®); + + reg &= ~F10_NB_CFG_LOW_ENABLE_EXT_CFG; + if (pvt->flags.cf8_extcfg) + reg |= F10_NB_CFG_LOW_ENABLE_EXT_CFG; + pci_write_config_dword(pvt->misc_f3_ctl, F10_NB_CFG_HIGH, reg); +} + +static u64 f10_get_error_address(struct mem_ctl_info *mci, + struct amd64_error_info_regs *info) +{ + return (((u64) (info->nbeah & 0xffff)) << 32) + + (info->nbeal & ~0x01); +} + +/* + * Read the Base and Limit registers for F10 based Memory controllers. Extract + * fields from the 'raw' reg into separate data fields. + * + * Isolates: BASE, LIMIT, IntlvEn, IntlvSel, RW_EN. + */ +static void f10_read_dram_base_limit(struct amd64_pvt *pvt, int dram) +{ + u32 high_offset, low_offset, high_base, low_base, high_limit, low_limit; + + low_offset = K8_DRAM_BASE_LOW + (dram << 3); + high_offset = F10_DRAM_BASE_HIGH + (dram << 3); + + /* read the 'raw' DRAM BASE Address register */ + pci_read_config_dword(pvt->addr_f1_ctl, low_offset, &low_base); + + /* Read from the ECS data register */ + pci_read_config_dword(pvt->addr_f1_ctl, high_offset, &high_base); + + /* Extract parts into separate data entries */ + pvt->dram_rw_en[dram] = (low_base & 0x3); + + if (pvt->dram_rw_en[dram] == 0) + return; + + pvt->dram_IntlvEn[dram] = (low_base >> 8) & 0x7; + + pvt->dram_base[dram] = (((((u64) high_base & 0x000000FF) << 32) | + ((u64) low_base & 0xFFFF0000))) << 8; + + low_offset = K8_DRAM_LIMIT_LOW + (dram << 3); + high_offset = F10_DRAM_LIMIT_HIGH + (dram << 3); + + /* read the 'raw' LIMIT registers */ + pci_read_config_dword(pvt->addr_f1_ctl, low_offset, &low_limit); + + /* Read from the ECS data register for the HIGH portion */ + pci_read_config_dword(pvt->addr_f1_ctl, high_offset, &high_limit); + + debugf0(" HW Regs: BASE=0x%08x-%08x LIMIT= 0x%08x-%08x\n", + high_base, low_base, high_limit, low_limit); + + pvt->dram_DstNode[dram] = (low_limit & 0x7); + pvt->dram_IntlvSel[dram] = (low_limit >> 8) & 0x7; + + /* + * Extract address values and form a LIMIT address. Limit is the HIGHEST + * memory location of the region, so low 24 bits need to be all ones. + */ + low_limit |= 0x0000FFFF; + pvt->dram_limit[dram] = + ((((u64) high_limit << 32) + (u64) low_limit) << 8) | (0xFF); +} + +static void f10_read_dram_ctl_register(struct amd64_pvt *pvt) +{ + int err = 0; + + err = pci_read_config_dword(pvt->dram_f2_ctl, F10_DCTL_SEL_LOW, + &pvt->dram_ctl_select_low); + if (err) { + debugf0("Reading F10_DCTL_SEL_LOW failed\n"); + } else { + debugf0("DRAM_DCTL_SEL_LOW=0x%x DctSelBaseAddr=0x%x\n", + pvt->dram_ctl_select_low, dct_sel_baseaddr(pvt)); + + debugf0(" DRAM DCTs are=%s DRAM Is=%s DRAM-Ctl-" + "sel-hi-range=%s\n", + (dct_ganging_enabled(pvt) ? "GANGED" : "NOT GANGED"), + (dct_dram_enabled(pvt) ? "Enabled" : "Disabled"), + (dct_high_range_enabled(pvt) ? "Enabled" : "Disabled")); + + debugf0(" DctDatIntLv=%s MemCleared=%s DctSelIntLvAddr=0x%x\n", + (dct_data_intlv_enabled(pvt) ? "Enabled" : "Disabled"), + (dct_memory_cleared(pvt) ? "True " : "False "), + dct_sel_interleave_addr(pvt)); + } + + err = pci_read_config_dword(pvt->dram_f2_ctl, F10_DCTL_SEL_HIGH, + &pvt->dram_ctl_select_high); + if (err) + debugf0("Reading F10_DCTL_SEL_HIGH failed\n"); +} + +/* + * determine channel based on the interleaving mode: F10h BKDG, 2.8.9 Memory + * Interleaving Modes. + */ +static u32 f10_determine_channel(struct amd64_pvt *pvt, u64 sys_addr, + int hi_range_sel, u32 intlv_en) +{ + u32 cs, temp, dct_sel_high = (pvt->dram_ctl_select_low >> 1) & 1; + + if (dct_ganging_enabled(pvt)) + cs = 0; + else if (hi_range_sel) + cs = dct_sel_high; + else if (dct_interleave_enabled(pvt)) { + /* + * see F2x110[DctSelIntLvAddr] - channel interleave mode + */ + if (dct_sel_interleave_addr(pvt) == 0) + cs = sys_addr >> 6 & 1; + else if ((dct_sel_interleave_addr(pvt) >> 1) & 1) { + temp = hweight_long((u32) ((sys_addr >> 16) & 0x1F)) % 2; + + if (dct_sel_interleave_addr(pvt) & 1) + cs = (sys_addr >> 9 & 1) ^ temp; + else + cs = (sys_addr >> 6 & 1) ^ temp; + } else if (intlv_en & 4) + cs = sys_addr >> 15 & 1; + else if (intlv_en & 2) + cs = sys_addr >> 14 & 1; + else if (intlv_en & 1) + cs = sys_addr >> 13 & 1; + else + cs = sys_addr >> 12 & 1; + } else if (dct_high_range_enabled(pvt) && !dct_ganging_enabled(pvt)) + cs = ~dct_sel_high & 1; + else + cs = 0; + + return cs; +} + +static inline u32 f10_map_intlv_en_to_shift(u32 intlv_en) +{ + if (intlv_en == 1) + return 1; + else if (intlv_en == 3) + return 2; + else if (intlv_en == 7) + return 3; + + return 0; +} + +/* See F10h BKDG, 2.8.10.2 DctSelBaseOffset Programming */ +static inline u64 f10_get_base_addr_offset(u64 sys_addr, int hi_range_sel, + u32 dct_sel_base_addr, + u64 dct_sel_base_off, + u32 hole_valid, u32 hole_off, + u64 dram_base) +{ + u64 chan_off; + + if (hi_range_sel) { + if (!(dct_sel_base_addr & 0xFFFFF800) && + hole_valid && (sys_addr >= 0x100000000ULL)) + chan_off = hole_off << 16; + else + chan_off = dct_sel_base_off; + } else { + if (hole_valid && (sys_addr >= 0x100000000ULL)) + chan_off = hole_off << 16; + else + chan_off = dram_base & 0xFFFFF8000000ULL; + } + + return (sys_addr & 0x0000FFFFFFFFFFC0ULL) - + (chan_off & 0x0000FFFFFF800000ULL); +} + +/* Hack for the time being - Can we get this from BIOS?? */ +#define CH0SPARE_RANK 0 +#define CH1SPARE_RANK 1 + +/* + * checks if the csrow passed in is marked as SPARED, if so returns the new + * spare row + */ +static inline int f10_process_possible_spare(int csrow, + u32 cs, struct amd64_pvt *pvt) +{ + u32 swap_done; + u32 bad_dram_cs; + + /* Depending on channel, isolate respective SPARING info */ + if (cs) { + swap_done = F10_ONLINE_SPARE_SWAPDONE1(pvt->online_spare); + bad_dram_cs = F10_ONLINE_SPARE_BADDRAM_CS1(pvt->online_spare); + if (swap_done && (csrow == bad_dram_cs)) + csrow = CH1SPARE_RANK; + } else { + swap_done = F10_ONLINE_SPARE_SWAPDONE0(pvt->online_spare); + bad_dram_cs = F10_ONLINE_SPARE_BADDRAM_CS0(pvt->online_spare); + if (swap_done && (csrow == bad_dram_cs)) + csrow = CH0SPARE_RANK; + } + return csrow; +} + +/* + * Iterate over the DRAM DCT "base" and "mask" registers looking for a + * SystemAddr match on the specified 'ChannelSelect' and 'NodeID' + * + * Return: + * -EINVAL: NOT FOUND + * 0..csrow = Chip-Select Row + */ +static int f10_lookup_addr_in_dct(u32 in_addr, u32 nid, u32 cs) +{ + struct mem_ctl_info *mci; + struct amd64_pvt *pvt; + u32 cs_base, cs_mask; + int cs_found = -EINVAL; + int csrow; + + mci = mci_lookup[nid]; + if (!mci) + return cs_found; + + pvt = mci->pvt_info; + + debugf1("InputAddr=0x%x channelselect=%d\n", in_addr, cs); + + for (csrow = 0; csrow < CHIPSELECT_COUNT; csrow++) { + + cs_base = amd64_get_dct_base(pvt, cs, csrow); + if (!(cs_base & K8_DCSB_CS_ENABLE)) + continue; + + /* + * We have an ENABLED CSROW, Isolate just the MASK bits of the + * target: [28:19] and [13:5], which map to [36:27] and [21:13] + * of the actual address. + */ + cs_base &= REV_F_F1Xh_DCSB_BASE_BITS; + + /* + * Get the DCT Mask, and ENABLE the reserved bits: [18:16] and + * [4:0] to become ON. Then mask off bits [28:0] ([36:8]) + */ + cs_mask = amd64_get_dct_mask(pvt, cs, csrow); + + debugf1(" CSROW=%d CSBase=0x%x RAW CSMask=0x%x\n", + csrow, cs_base, cs_mask); + + cs_mask = (cs_mask | 0x0007C01F) & 0x1FFFFFFF; + + debugf1(" Final CSMask=0x%x\n", cs_mask); + debugf1(" (InputAddr & ~CSMask)=0x%x " + "(CSBase & ~CSMask)=0x%x\n", + (in_addr & ~cs_mask), (cs_base & ~cs_mask)); + + if ((in_addr & ~cs_mask) == (cs_base & ~cs_mask)) { + cs_found = f10_process_possible_spare(csrow, cs, pvt); + + debugf1(" MATCH csrow=%d\n", cs_found); + break; + } + } + return cs_found; +} + +/* For a given @dram_range, check if @sys_addr falls within it. */ +static int f10_match_to_this_node(struct amd64_pvt *pvt, int dram_range, + u64 sys_addr, int *nid, int *chan_sel) +{ + int node_id, cs_found = -EINVAL, high_range = 0; + u32 intlv_en, intlv_sel, intlv_shift, hole_off; + u32 hole_valid, tmp, dct_sel_base, channel; + u64 dram_base, chan_addr, dct_sel_base_off; + + dram_base = pvt->dram_base[dram_range]; + intlv_en = pvt->dram_IntlvEn[dram_range]; + + node_id = pvt->dram_DstNode[dram_range]; + intlv_sel = pvt->dram_IntlvSel[dram_range]; + + debugf1("(dram=%d) Base=0x%llx SystemAddr= 0x%llx Limit=0x%llx\n", + dram_range, dram_base, sys_addr, pvt->dram_limit[dram_range]); + + /* + * This assumes that one node's DHAR is the same as all the other + * nodes' DHAR. + */ + hole_off = (pvt->dhar & 0x0000FF80); + hole_valid = (pvt->dhar & 0x1); + dct_sel_base_off = (pvt->dram_ctl_select_high & 0xFFFFFC00) << 16; + + debugf1(" HoleOffset=0x%x HoleValid=0x%x IntlvSel=0x%x\n", + hole_off, hole_valid, intlv_sel); + + if (intlv_en || + (intlv_sel != ((sys_addr >> 12) & intlv_en))) + return -EINVAL; + + dct_sel_base = dct_sel_baseaddr(pvt); + + /* + * check whether addresses >= DctSelBaseAddr[47:27] are to be used to + * select between DCT0 and DCT1. + */ + if (dct_high_range_enabled(pvt) && + !dct_ganging_enabled(pvt) && + ((sys_addr >> 27) >= (dct_sel_base >> 11))) + high_range = 1; + + channel = f10_determine_channel(pvt, sys_addr, high_range, intlv_en); + + chan_addr = f10_get_base_addr_offset(sys_addr, high_range, dct_sel_base, + dct_sel_base_off, hole_valid, + hole_off, dram_base); + + intlv_shift = f10_map_intlv_en_to_shift(intlv_en); + + /* remove Node ID (in case of memory interleaving) */ + tmp = chan_addr & 0xFC0; + + chan_addr = ((chan_addr >> intlv_shift) & 0xFFFFFFFFF000ULL) | tmp; + + /* remove channel interleave and hash */ + if (dct_interleave_enabled(pvt) && + !dct_high_range_enabled(pvt) && + !dct_ganging_enabled(pvt)) { + if (dct_sel_interleave_addr(pvt) != 1) + chan_addr = (chan_addr >> 1) & 0xFFFFFFFFFFFFFFC0ULL; + else { + tmp = chan_addr & 0xFC0; + chan_addr = ((chan_addr & 0xFFFFFFFFFFFFC000ULL) >> 1) + | tmp; + } + } + + debugf1(" (ChannelAddrLong=0x%llx) >> 8 becomes InputAddr=0x%x\n", + chan_addr, (u32)(chan_addr >> 8)); + + cs_found = f10_lookup_addr_in_dct(chan_addr >> 8, node_id, channel); + + if (cs_found >= 0) { + *nid = node_id; + *chan_sel = channel; + } + return cs_found; +} + +static int f10_translate_sysaddr_to_cs(struct amd64_pvt *pvt, u64 sys_addr, + int *node, int *chan_sel) +{ + int dram_range, cs_found = -EINVAL; + u64 dram_base, dram_limit; + + for (dram_range = 0; dram_range < DRAM_REG_COUNT; dram_range++) { + + if (!pvt->dram_rw_en[dram_range]) + continue; + + dram_base = pvt->dram_base[dram_range]; + dram_limit = pvt->dram_limit[dram_range]; + + if ((dram_base <= sys_addr) && (sys_addr <= dram_limit)) { + + cs_found = f10_match_to_this_node(pvt, dram_range, + sys_addr, node, + chan_sel); + if (cs_found >= 0) + break; + } + } + return cs_found; +} + +/* + * This the F10h reference code from AMD to map a @sys_addr to NodeID, + * CSROW, Channel. + * + * The @sys_addr is usually an error address received from the hardware. + */ +static void f10_map_sysaddr_to_csrow(struct mem_ctl_info *mci, + struct amd64_error_info_regs *info, + u64 sys_addr) +{ + struct amd64_pvt *pvt = mci->pvt_info; + u32 page, offset; + unsigned short syndrome; + int nid, csrow, chan = 0; + + csrow = f10_translate_sysaddr_to_cs(pvt, sys_addr, &nid, &chan); + + if (csrow >= 0) { + error_address_to_page_and_offset(sys_addr, &page, &offset); + + syndrome = EXTRACT_HIGH_SYNDROME(info->nbsl) << 8; + syndrome |= EXTRACT_LOW_SYNDROME(info->nbsh); + + /* + * Is CHIPKILL on? If so, then we can attempt to use the + * syndrome to isolate which channel the error was on. + */ + if (pvt->nbcfg & K8_NBCFG_CHIPKILL) + chan = get_channel_from_ecc_syndrome(syndrome); + + if (chan >= 0) { + edac_mc_handle_ce(mci, page, offset, syndrome, + csrow, chan, EDAC_MOD_STR); + } else { + /* + * Channel unknown, report all channels on this + * CSROW as failed. + */ + for (chan = 0; chan < mci->csrows[csrow].nr_channels; + chan++) { + edac_mc_handle_ce(mci, page, offset, + syndrome, + csrow, chan, + EDAC_MOD_STR); + } + } + + } else { + edac_mc_handle_ce_no_info(mci, EDAC_MOD_STR); + } +} + +/* + * Input (@index) is the DBAM DIMM value (1 of 4) used as an index into a shift + * table (revf_quad_ddr2_shift) which starts at 128MB DIMM size. Index of 0 + * indicates an empty DIMM slot, as reported by Hardware on empty slots. + * + * Normalize to 128MB by subracting 27 bit shift. + */ +static int map_dbam_to_csrow_size(int index) +{ + int mega_bytes = 0; + + if (index > 0 && index <= DBAM_MAX_VALUE) + mega_bytes = ((128 << (revf_quad_ddr2_shift[index]-27))); + + return mega_bytes; +} + +/* + * debug routine to display the memory sizes of a DIMM (ganged or not) and it + * CSROWs as well + */ +static void f10_debug_display_dimm_sizes(int ctrl, struct amd64_pvt *pvt, + int ganged) +{ + int dimm, size0, size1; + u32 dbam; + u32 *dcsb; + + debugf1(" dbam%d: 0x%8.08x CSROW is %s\n", ctrl, + ctrl ? pvt->dbam1 : pvt->dbam0, + ganged ? "GANGED - dbam1 not used" : "NON-GANGED"); + + dbam = ctrl ? pvt->dbam1 : pvt->dbam0; + dcsb = ctrl ? pvt->dcsb1 : pvt->dcsb0; + + /* Dump memory sizes for DIMM and its CSROWs */ + for (dimm = 0; dimm < 4; dimm++) { + + size0 = 0; + if (dcsb[dimm*2] & K8_DCSB_CS_ENABLE) + size0 = map_dbam_to_csrow_size(DBAM_DIMM(dimm, dbam)); + + size1 = 0; + if (dcsb[dimm*2 + 1] & K8_DCSB_CS_ENABLE) + size1 = map_dbam_to_csrow_size(DBAM_DIMM(dimm, dbam)); + + debugf1(" CTRL-%d DIMM-%d=%5dMB CSROW-%d=%5dMB " + "CSROW-%d=%5dMB\n", + ctrl, + dimm, + size0 + size1, + dimm * 2, + size0, + dimm * 2 + 1, + size1); + } +} + +/* + * Very early hardware probe on pci_probe thread to determine if this module + * supports the hardware. + * + * Return: + * 0 for OK + * 1 for error + */ +static int f10_probe_valid_hardware(struct amd64_pvt *pvt) +{ + int ret = 0; + + /* + * If we are on a DDR3 machine, we don't know yet if + * we support that properly at this time + */ + if ((pvt->dchr0 & F10_DCHR_Ddr3Mode) || + (pvt->dchr1 & F10_DCHR_Ddr3Mode)) { + + amd64_printk(KERN_WARNING, + "%s() This machine is running with DDR3 memory. " + "This is not currently supported. " + "DCHR0=0x%x DCHR1=0x%x\n", + __func__, pvt->dchr0, pvt->dchr1); + + amd64_printk(KERN_WARNING, + " Contact '%s' module MAINTAINER to help add" + " support.\n", + EDAC_MOD_STR); + + ret = 1; + + } + return ret; +} + +/* + * There currently are 3 types type of MC devices for AMD Athlon/Opterons + * (as per PCI DEVICE_IDs): + * + * Family K8: That is the Athlon64 and Opteron CPUs. They all have the same PCI + * DEVICE ID, even though there is differences between the different Revisions + * (CG,D,E,F). + * + * Family F10h and F11h. + * + */ +static struct amd64_family_type amd64_family_types[] = { + [K8_CPUS] = { + .ctl_name = "RevF", + .addr_f1_ctl = PCI_DEVICE_ID_AMD_K8_NB_ADDRMAP, + .misc_f3_ctl = PCI_DEVICE_ID_AMD_K8_NB_MISC, + .ops = { + .early_channel_count = k8_early_channel_count, + .get_error_address = k8_get_error_address, + .read_dram_base_limit = k8_read_dram_base_limit, + .map_sysaddr_to_csrow = k8_map_sysaddr_to_csrow, + .dbam_map_to_pages = k8_dbam_map_to_pages, + } + }, + [F10_CPUS] = { + .ctl_name = "Family 10h", + .addr_f1_ctl = PCI_DEVICE_ID_AMD_10H_NB_MAP, + .misc_f3_ctl = PCI_DEVICE_ID_AMD_10H_NB_MISC, + .ops = { + .probe_valid_hardware = f10_probe_valid_hardware, + .early_channel_count = f10_early_channel_count, + .get_error_address = f10_get_error_address, + .read_dram_base_limit = f10_read_dram_base_limit, + .read_dram_ctl_register = f10_read_dram_ctl_register, + .map_sysaddr_to_csrow = f10_map_sysaddr_to_csrow, + .dbam_map_to_pages = f10_dbam_map_to_pages, + } + }, + [F11_CPUS] = { + .ctl_name = "Family 11h", + .addr_f1_ctl = PCI_DEVICE_ID_AMD_11H_NB_MAP, + .misc_f3_ctl = PCI_DEVICE_ID_AMD_11H_NB_MISC, + .ops = { + .probe_valid_hardware = f10_probe_valid_hardware, + .early_channel_count = f10_early_channel_count, + .get_error_address = f10_get_error_address, + .read_dram_base_limit = f10_read_dram_base_limit, + .read_dram_ctl_register = f10_read_dram_ctl_register, + .map_sysaddr_to_csrow = f10_map_sysaddr_to_csrow, + .dbam_map_to_pages = f10_dbam_map_to_pages, + } + }, +}; + +static struct pci_dev *pci_get_related_function(unsigned int vendor, + unsigned int device, + struct pci_dev *related) +{ + struct pci_dev *dev = NULL; + + dev = pci_get_device(vendor, device, dev); + while (dev) { + if ((dev->bus->number == related->bus->number) && + (PCI_SLOT(dev->devfn) == PCI_SLOT(related->devfn))) + break; + dev = pci_get_device(vendor, device, dev); + } + + return dev; +} + +/* + * syndrome mapping table for ECC ChipKill devices + * + * The comment in each row is the token (nibble) number that is in error. + * The least significant nibble of the syndrome is the mask for the bits + * that are in error (need to be toggled) for the particular nibble. + * + * Each row contains 16 entries. + * The first entry (0th) is the channel number for that row of syndromes. + * The remaining 15 entries are the syndromes for the respective Error + * bit mask index. + * + * 1st index entry is 0x0001 mask, indicating that the rightmost bit is the + * bit in error. + * The 2nd index entry is 0x0010 that the second bit is damaged. + * The 3rd index entry is 0x0011 indicating that the rightmost 2 bits + * are damaged. + * Thus so on until index 15, 0x1111, whose entry has the syndrome + * indicating that all 4 bits are damaged. + * + * A search is performed on this table looking for a given syndrome. + * + * See the AMD documentation for ECC syndromes. This ECC table is valid + * across all the versions of the AMD64 processors. + * + * A fast lookup is to use the LAST four bits of the 16-bit syndrome as a + * COLUMN index, then search all ROWS of that column, looking for a match + * with the input syndrome. The ROW value will be the token number. + * + * The 0'th entry on that row, can be returned as the CHANNEL (0 or 1) of this + * error. + */ +#define NUMBER_ECC_ROWS 36 +static const unsigned short ecc_chipkill_syndromes[NUMBER_ECC_ROWS][16] = { + /* Channel 0 syndromes */ + {/*0*/ 0, 0xe821, 0x7c32, 0x9413, 0xbb44, 0x5365, 0xc776, 0x2f57, + 0xdd88, 0x35a9, 0xa1ba, 0x499b, 0x66cc, 0x8eed, 0x1afe, 0xf2df }, + {/*1*/ 0, 0x5d31, 0xa612, 0xfb23, 0x9584, 0xc8b5, 0x3396, 0x6ea7, + 0xeac8, 0xb7f9, 0x4cda, 0x11eb, 0x7f4c, 0x227d, 0xd95e, 0x846f }, + {/*2*/ 0, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, + 0x0008, 0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f }, + {/*3*/ 0, 0x2021, 0x3032, 0x1013, 0x4044, 0x6065, 0x7076, 0x5057, + 0x8088, 0xa0a9, 0xb0ba, 0x909b, 0xc0cc, 0xe0ed, 0xf0fe, 0xd0df }, + {/*4*/ 0, 0x5041, 0xa082, 0xf0c3, 0x9054, 0xc015, 0x30d6, 0x6097, + 0xe0a8, 0xb0e9, 0x402a, 0x106b, 0x70fc, 0x20bd, 0xd07e, 0x803f }, + {/*5*/ 0, 0xbe21, 0xd732, 0x6913, 0x2144, 0x9f65, 0xf676, 0x4857, + 0x3288, 0x8ca9, 0xe5ba, 0x5b9b, 0x13cc, 0xaded, 0xc4fe, 0x7adf }, + {/*6*/ 0, 0x4951, 0x8ea2, 0xc7f3, 0x5394, 0x1ac5, 0xdd36, 0x9467, + 0xa1e8, 0xe8b9, 0x2f4a, 0x661b, 0xf27c, 0xbb2d, 0x7cde, 0x358f }, + {/*7*/ 0, 0x74e1, 0x9872, 0xec93, 0xd6b4, 0xa255, 0x4ec6, 0x3a27, + 0x6bd8, 0x1f39, 0xf3aa, 0x874b, 0xbd6c, 0xc98d, 0x251e, 0x51ff }, + {/*8*/ 0, 0x15c1, 0x2a42, 0x3f83, 0xcef4, 0xdb35, 0xe4b6, 0xf177, + 0x4758, 0x5299, 0x6d1a, 0x78db, 0x89ac, 0x9c6d, 0xa3ee, 0xb62f }, + {/*9*/ 0, 0x3d01, 0x1602, 0x2b03, 0x8504, 0xb805, 0x9306, 0xae07, + 0xca08, 0xf709, 0xdc0a, 0xe10b, 0x4f0c, 0x720d, 0x590e, 0x640f }, + {/*a*/ 0, 0x9801, 0xec02, 0x7403, 0x6b04, 0xf305, 0x8706, 0x1f07, + 0xbd08, 0x2509, 0x510a, 0xc90b, 0xd60c, 0x4e0d, 0x3a0e, 0xa20f }, + {/*b*/ 0, 0xd131, 0x6212, 0xb323, 0x3884, 0xe9b5, 0x5a96, 0x8ba7, + 0x1cc8, 0xcdf9, 0x7eda, 0xafeb, 0x244c, 0xf57d, 0x465e, 0x976f }, + {/*c*/ 0, 0xe1d1, 0x7262, 0x93b3, 0xb834, 0x59e5, 0xca56, 0x2b87, + 0xdc18, 0x3dc9, 0xae7a, 0x4fab, 0x542c, 0x85fd, 0x164e, 0xf79f }, + {/*d*/ 0, 0x6051, 0xb0a2, 0xd0f3, 0x1094, 0x70c5, 0xa036, 0xc067, + 0x20e8, 0x40b9, 0x904a, 0x601b, 0x307c, 0x502d, 0x80de, 0xe08f }, + {/*e*/ 0, 0xa4c1, 0xf842, 0x5c83, 0xe6f4, 0x4235, 0x1eb6, 0xba77, + 0x7b58, 0xdf99, 0x831a, 0x27db, 0x9dac, 0x396d, 0x65ee, 0xc12f }, + {/*f*/ 0, 0x11c1, 0x2242, 0x3383, 0xc8f4, 0xd935, 0xeab6, 0xfb77, + 0x4c58, 0x5d99, 0x6e1a, 0x7fdb, 0x84ac, 0x956d, 0xa6ee, 0xb72f }, + + /* Channel 1 syndromes */ + {/*10*/ 1, 0x45d1, 0x8a62, 0xcfb3, 0x5e34, 0x1be5, 0xd456, 0x9187, + 0xa718, 0xe2c9, 0x2d7a, 0x68ab, 0xf92c, 0xbcfd, 0x734e, 0x369f }, + {/*11*/ 1, 0x63e1, 0xb172, 0xd293, 0x14b4, 0x7755, 0xa5c6, 0xc627, + 0x28d8, 0x4b39, 0x99aa, 0xfa4b, 0x3c6c, 0x5f8d, 0x8d1e, 0xeeff }, + {/*12*/ 1, 0xb741, 0xd982, 0x6ec3, 0x2254, 0x9515, 0xfbd6, 0x4c97, + 0x33a8, 0x84e9, 0xea2a, 0x5d6b, 0x11fc, 0xa6bd, 0xc87e, 0x7f3f }, + {/*13*/ 1, 0xdd41, 0x6682, 0xbbc3, 0x3554, 0xe815, 0x53d6, 0xce97, + 0x1aa8, 0xc7e9, 0x7c2a, 0xa1fb, 0x2ffc, 0xf2bd, 0x497e, 0x943f }, + {/*14*/ 1, 0x2bd1, 0x3d62, 0x16b3, 0x4f34, 0x64e5, 0x7256, 0x5987, + 0x8518, 0xaec9, 0xb87a, 0x93ab, 0xca2c, 0xe1fd, 0xf74e, 0xdc9f }, + {/*15*/ 1, 0x83c1, 0xc142, 0x4283, 0xa4f4, 0x2735, 0x65b6, 0xe677, + 0xf858, 0x7b99, 0x391a, 0xbadb, 0x5cac, 0xdf6d, 0x9dee, 0x1e2f }, + {/*16*/ 1, 0x8fd1, 0xc562, 0x4ab3, 0xa934, 0x26e5, 0x6c56, 0xe387, + 0xfe18, 0x71c9, 0x3b7a, 0xb4ab, 0x572c, 0xd8fd, 0x924e, 0x1d9f }, + {/*17*/ 1, 0x4791, 0x89e2, 0xce73, 0x5264, 0x15f5, 0xdb86, 0x9c17, + 0xa3b8, 0xe429, 0x2a5a, 0x6dcb, 0xf1dc, 0xb64d, 0x783e, 0x3faf }, + {/*18*/ 1, 0x5781, 0xa9c2, 0xfe43, 0x92a4, 0xc525, 0x3b66, 0x6ce7, + 0xe3f8, 0xb479, 0x4a3a, 0x1dbb, 0x715c, 0x26dd, 0xd89e, 0x8f1f }, + {/*19*/ 1, 0xbf41, 0xd582, 0x6ac3, 0x2954, 0x9615, 0xfcd6, 0x4397, + 0x3ea8, 0x81e9, 0xeb2a, 0x546b, 0x17fc, 0xa8bd, 0xc27e, 0x7d3f }, + {/*1a*/ 1, 0x9891, 0xe1e2, 0x7273, 0x6464, 0xf7f5, 0x8586, 0x1617, + 0xb8b8, 0x2b29, 0x595a, 0xcacb, 0xdcdc, 0x4f4d, 0x3d3e, 0xaeaf }, + {/*1b*/ 1, 0xcce1, 0x4472, 0x8893, 0xfdb4, 0x3f55, 0xb9c6, 0x7527, + 0x56d8, 0x9a39, 0x12aa, 0xde4b, 0xab6c, 0x678d, 0xef1e, 0x23ff }, + {/*1c*/ 1, 0xa761, 0xf9b2, 0x5ed3, 0xe214, 0x4575, 0x1ba6, 0xbcc7, + 0x7328, 0xd449, 0x8a9a, 0x2dfb, 0x913c, 0x365d, 0x688e, 0xcfef }, + {/*1d*/ 1, 0xff61, 0x55b2, 0xaad3, 0x7914, 0x8675, 0x2ca6, 0xd3c7, + 0x9e28, 0x6149, 0xcb9a, 0x34fb, 0xe73c, 0x185d, 0xb28e, 0x4def }, + {/*1e*/ 1, 0x5451, 0xa8a2, 0xfcf3, 0x9694, 0xc2c5, 0x3e36, 0x6a67, + 0xebe8, 0xbfb9, 0x434a, 0x171b, 0x7d7c, 0x292d, 0xd5de, 0x818f }, + {/*1f*/ 1, 0x6fc1, 0xb542, 0xda83, 0x19f4, 0x7635, 0xacb6, 0xc377, + 0x2e58, 0x4199, 0x9b1a, 0xf4db, 0x37ac, 0x586d, 0x82ee, 0xed2f }, + + /* ECC bits are also in the set of tokens and they too can go bad + * first 2 cover channel 0, while the second 2 cover channel 1 + */ + {/*20*/ 0, 0xbe01, 0xd702, 0x6903, 0x2104, 0x9f05, 0xf606, 0x4807, + 0x3208, 0x8c09, 0xe50a, 0x5b0b, 0x130c, 0xad0d, 0xc40e, 0x7a0f }, + {/*21*/ 0, 0x4101, 0x8202, 0xc303, 0x5804, 0x1905, 0xda06, 0x9b07, + 0xac08, 0xed09, 0x2e0a, 0x6f0b, 0x640c, 0xb50d, 0x760e, 0x370f }, + {/*22*/ 1, 0xc441, 0x4882, 0x8cc3, 0xf654, 0x3215, 0xbed6, 0x7a97, + 0x5ba8, 0x9fe9, 0x132a, 0xd76b, 0xadfc, 0x69bd, 0xe57e, 0x213f }, + {/*23*/ 1, 0x7621, 0x9b32, 0xed13, 0xda44, 0xac65, 0x4176, 0x3757, + 0x6f88, 0x19a9, 0xf4ba, 0x829b, 0xb5cc, 0xc3ed, 0x2efe, 0x58df } +}; + +/* + * Given the syndrome argument, scan each of the channel tables for a syndrome + * match. Depending on which table it is found, return the channel number. + */ +static int get_channel_from_ecc_syndrome(unsigned short syndrome) +{ + int row; + int column; + + /* Determine column to scan */ + column = syndrome & 0xF; + + /* Scan all rows, looking for syndrome, or end of table */ + for (row = 0; row < NUMBER_ECC_ROWS; row++) { + if (ecc_chipkill_syndromes[row][column] == syndrome) + return ecc_chipkill_syndromes[row][0]; + } + + debugf0("syndrome(%x) not found\n", syndrome); + return -1; +} + +/* + * Check for valid error in the NB Status High register. If so, proceed to read + * NB Status Low, NB Address Low and NB Address High registers and store data + * into error structure. + * + * Returns: + * - 1: if hardware regs contains valid error info + * - 0: if no valid error is indicated + */ +static int amd64_get_error_info_regs(struct mem_ctl_info *mci, + struct amd64_error_info_regs *regs) +{ + struct amd64_pvt *pvt; + struct pci_dev *misc_f3_ctl; + int err = 0; + + pvt = mci->pvt_info; + misc_f3_ctl = pvt->misc_f3_ctl; + + err = pci_read_config_dword(misc_f3_ctl, K8_NBSH, ®s->nbsh); + if (err) + goto err_reg; + + if (!(regs->nbsh & K8_NBSH_VALID_BIT)) + return 0; + + /* valid error, read remaining error information registers */ + err = pci_read_config_dword(misc_f3_ctl, K8_NBSL, ®s->nbsl); + if (err) + goto err_reg; + + err = pci_read_config_dword(misc_f3_ctl, K8_NBEAL, ®s->nbeal); + if (err) + goto err_reg; + + err = pci_read_config_dword(misc_f3_ctl, K8_NBEAH, ®s->nbeah); + if (err) + goto err_reg; + + err = pci_read_config_dword(misc_f3_ctl, K8_NBCFG, ®s->nbcfg); + if (err) + goto err_reg; + + return 1; + +err_reg: + debugf0("Reading error info register failed\n"); + return 0; +} + +/* + * This function is called to retrieve the error data from hardware and store it + * in the info structure. + * + * Returns: + * - 1: if a valid error is found + * - 0: if no error is found + */ +static int amd64_get_error_info(struct mem_ctl_info *mci, + struct amd64_error_info_regs *info) +{ + struct amd64_pvt *pvt; + struct amd64_error_info_regs regs; + + pvt = mci->pvt_info; + + if (!amd64_get_error_info_regs(mci, info)) + return 0; + + /* + * Here's the problem with the K8's EDAC reporting: There are four + * registers which report pieces of error information. They are shared + * between CEs and UEs. Furthermore, contrary to what is stated in the + * BKDG, the overflow bit is never used! Every error always updates the + * reporting registers. + * + * Can you see the race condition? All four error reporting registers + * must be read before a new error updates them! There is no way to read + * all four registers atomically. The best than can be done is to detect + * that a race has occured and then report the error without any kind of + * precision. + * + * What is still positive is that errors are still reported and thus + * problems can still be detected - just not localized because the + * syndrome and address are spread out across registers. + * + * Grrrrr!!!!! Here's hoping that AMD fixes this in some future K8 rev. + * UEs and CEs should have separate register sets with proper overflow + * bits that are used! At very least the problem can be fixed by + * honoring the ErrValid bit in 'nbsh' and not updating registers - just + * set the overflow bit - unless the current error is CE and the new + * error is UE which would be the only situation for overwriting the + * current values. + */ + + regs = *info; + + /* Use info from the second read - most current */ + if (unlikely(!amd64_get_error_info_regs(mci, info))) + return 0; + + /* clear the error bits in hardware */ + pci_write_bits32(pvt->misc_f3_ctl, K8_NBSH, 0, K8_NBSH_VALID_BIT); + + /* Check for the possible race condition */ + if ((regs.nbsh != info->nbsh) || + (regs.nbsl != info->nbsl) || + (regs.nbeah != info->nbeah) || + (regs.nbeal != info->nbeal)) { + amd64_mc_printk(mci, KERN_WARNING, + "hardware STATUS read access race condition " + "detected!\n"); + return 0; + } + return 1; +} + +static inline void amd64_decode_gart_tlb_error(struct mem_ctl_info *mci, + struct amd64_error_info_regs *info) +{ + u32 err_code; + u32 ec_tt; /* error code transaction type (2b) */ + u32 ec_ll; /* error code cache level (2b) */ + + err_code = EXTRACT_ERROR_CODE(info->nbsl); + ec_ll = EXTRACT_LL_CODE(err_code); + ec_tt = EXTRACT_TT_CODE(err_code); + + amd64_mc_printk(mci, KERN_ERR, + "GART TLB event: transaction type(%s), " + "cache level(%s)\n", tt_msgs[ec_tt], ll_msgs[ec_ll]); +} + +static inline void amd64_decode_mem_cache_error(struct mem_ctl_info *mci, + struct amd64_error_info_regs *info) +{ + u32 err_code; + u32 ec_rrrr; /* error code memory transaction (4b) */ + u32 ec_tt; /* error code transaction type (2b) */ + u32 ec_ll; /* error code cache level (2b) */ + + err_code = EXTRACT_ERROR_CODE(info->nbsl); + ec_ll = EXTRACT_LL_CODE(err_code); + ec_tt = EXTRACT_TT_CODE(err_code); + ec_rrrr = EXTRACT_RRRR_CODE(err_code); + + amd64_mc_printk(mci, KERN_ERR, + "cache hierarchy error: memory transaction type(%s), " + "transaction type(%s), cache level(%s)\n", + rrrr_msgs[ec_rrrr], tt_msgs[ec_tt], ll_msgs[ec_ll]); +} + + +/* + * Handle any Correctable Errors (CEs) that have occurred. Check for valid ERROR + * ADDRESS and process. + */ +static void amd64_handle_ce(struct mem_ctl_info *mci, + struct amd64_error_info_regs *info) +{ + struct amd64_pvt *pvt = mci->pvt_info; + u64 SystemAddress; + + /* Ensure that the Error Address is VALID */ + if ((info->nbsh & K8_NBSH_VALID_ERROR_ADDR) == 0) { + amd64_mc_printk(mci, KERN_ERR, + "HW has no ERROR_ADDRESS available\n"); + edac_mc_handle_ce_no_info(mci, EDAC_MOD_STR); + return; + } + + SystemAddress = extract_error_address(mci, info); + + amd64_mc_printk(mci, KERN_ERR, + "CE ERROR_ADDRESS= 0x%llx\n", SystemAddress); + + pvt->ops->map_sysaddr_to_csrow(mci, info, SystemAddress); +} + +/* Handle any Un-correctable Errors (UEs) */ +static void amd64_handle_ue(struct mem_ctl_info *mci, + struct amd64_error_info_regs *info) +{ + int csrow; + u64 SystemAddress; + u32 page, offset; + struct mem_ctl_info *log_mci, *src_mci = NULL; + + log_mci = mci; + + if ((info->nbsh & K8_NBSH_VALID_ERROR_ADDR) == 0) { + amd64_mc_printk(mci, KERN_CRIT, + "HW has no ERROR_ADDRESS available\n"); + edac_mc_handle_ue_no_info(log_mci, EDAC_MOD_STR); + return; + } + + SystemAddress = extract_error_address(mci, info); + + /* + * Find out which node the error address belongs to. This may be + * different from the node that detected the error. + */ + src_mci = find_mc_by_sys_addr(mci, SystemAddress); + if (!src_mci) { + amd64_mc_printk(mci, KERN_CRIT, + "ERROR ADDRESS (0x%lx) value NOT mapped to a MC\n", + (unsigned long)SystemAddress); + edac_mc_handle_ue_no_info(log_mci, EDAC_MOD_STR); + return; + } + + log_mci = src_mci; + + csrow = sys_addr_to_csrow(log_mci, SystemAddress); + if (csrow < 0) { + amd64_mc_printk(mci, KERN_CRIT, + "ERROR_ADDRESS (0x%lx) value NOT mapped to 'csrow'\n", + (unsigned long)SystemAddress); + edac_mc_handle_ue_no_info(log_mci, EDAC_MOD_STR); + } else { + error_address_to_page_and_offset(SystemAddress, &page, &offset); + edac_mc_handle_ue(log_mci, page, offset, csrow, EDAC_MOD_STR); + } +} + +static void amd64_decode_bus_error(struct mem_ctl_info *mci, + struct amd64_error_info_regs *info) +{ + u32 err_code, ext_ec; + u32 ec_pp; /* error code participating processor (2p) */ + u32 ec_to; /* error code timed out (1b) */ + u32 ec_rrrr; /* error code memory transaction (4b) */ + u32 ec_ii; /* error code memory or I/O (2b) */ + u32 ec_ll; /* error code cache level (2b) */ + + ext_ec = EXTRACT_EXT_ERROR_CODE(info->nbsl); + err_code = EXTRACT_ERROR_CODE(info->nbsl); + + ec_ll = EXTRACT_LL_CODE(err_code); + ec_ii = EXTRACT_II_CODE(err_code); + ec_rrrr = EXTRACT_RRRR_CODE(err_code); + ec_to = EXTRACT_TO_CODE(err_code); + ec_pp = EXTRACT_PP_CODE(err_code); + + amd64_mc_printk(mci, KERN_ERR, + "BUS ERROR:\n" + " time-out(%s) mem or i/o(%s)\n" + " participating processor(%s)\n" + " memory transaction type(%s)\n" + " cache level(%s) Error Found by: %s\n", + to_msgs[ec_to], + ii_msgs[ec_ii], + pp_msgs[ec_pp], + rrrr_msgs[ec_rrrr], + ll_msgs[ec_ll], + (info->nbsh & K8_NBSH_ERR_SCRUBER) ? + "Scrubber" : "Normal Operation"); + + /* If this was an 'observed' error, early out */ + if (ec_pp == K8_NBSL_PP_OBS) + return; /* We aren't the node involved */ + + /* Parse out the extended error code for ECC events */ + switch (ext_ec) { + /* F10 changed to one Extended ECC error code */ + case F10_NBSL_EXT_ERR_RES: /* Reserved field */ + case F10_NBSL_EXT_ERR_ECC: /* F10 ECC ext err code */ + break; + + default: + amd64_mc_printk(mci, KERN_ERR, "NOT ECC: no special error " + "handling for this error\n"); + return; + } + + if (info->nbsh & K8_NBSH_CECC) + amd64_handle_ce(mci, info); + else if (info->nbsh & K8_NBSH_UECC) + amd64_handle_ue(mci, info); + + /* + * If main error is CE then overflow must be CE. If main error is UE + * then overflow is unknown. We'll call the overflow a CE - if + * panic_on_ue is set then we're already panic'ed and won't arrive + * here. Else, then apparently someone doesn't think that UE's are + * catastrophic. + */ + if (info->nbsh & K8_NBSH_OVERFLOW) + edac_mc_handle_ce_no_info(mci, EDAC_MOD_STR + "Error Overflow set"); +} + +int amd64_process_error_info(struct mem_ctl_info *mci, + struct amd64_error_info_regs *info, + int handle_errors) +{ + struct amd64_pvt *pvt; + struct amd64_error_info_regs *regs; + u32 err_code, ext_ec; + int gart_tlb_error = 0; + + pvt = mci->pvt_info; + + /* If caller doesn't want us to process the error, return */ + if (!handle_errors) + return 1; + + regs = info; + + debugf1("NorthBridge ERROR: mci(0x%p)\n", mci); + debugf1(" MC node(%d) Error-Address(0x%.8x-%.8x)\n", + pvt->mc_node_id, regs->nbeah, regs->nbeal); + debugf1(" nbsh(0x%.8x) nbsl(0x%.8x)\n", + regs->nbsh, regs->nbsl); + debugf1(" Valid Error=%s Overflow=%s\n", + (regs->nbsh & K8_NBSH_VALID_BIT) ? "True" : "False", + (regs->nbsh & K8_NBSH_OVERFLOW) ? "True" : "False"); + debugf1(" Err Uncorrected=%s MCA Error Reporting=%s\n", + (regs->nbsh & K8_NBSH_UNCORRECTED_ERR) ? + "True" : "False", + (regs->nbsh & K8_NBSH_ERR_ENABLE) ? + "True" : "False"); + debugf1(" MiscErr Valid=%s ErrAddr Valid=%s PCC=%s\n", + (regs->nbsh & K8_NBSH_MISC_ERR_VALID) ? + "True" : "False", + (regs->nbsh & K8_NBSH_VALID_ERROR_ADDR) ? + "True" : "False", + (regs->nbsh & K8_NBSH_PCC) ? + "True" : "False"); + debugf1(" CECC=%s UECC=%s Found by Scruber=%s\n", + (regs->nbsh & K8_NBSH_CECC) ? + "True" : "False", + (regs->nbsh & K8_NBSH_UECC) ? + "True" : "False", + (regs->nbsh & K8_NBSH_ERR_SCRUBER) ? + "True" : "False"); + debugf1(" CORE0=%s CORE1=%s CORE2=%s CORE3=%s\n", + (regs->nbsh & K8_NBSH_CORE0) ? "True" : "False", + (regs->nbsh & K8_NBSH_CORE1) ? "True" : "False", + (regs->nbsh & K8_NBSH_CORE2) ? "True" : "False", + (regs->nbsh & K8_NBSH_CORE3) ? "True" : "False"); + + + err_code = EXTRACT_ERROR_CODE(regs->nbsl); + + /* Determine which error type: + * 1) GART errors - non-fatal, developmental events + * 2) MEMORY errors + * 3) BUS errors + * 4) Unknown error + */ + if (TEST_TLB_ERROR(err_code)) { + /* + * GART errors are intended to help graphics driver developers + * to detect bad GART PTEs. It is recommended by AMD to disable + * GART table walk error reporting by default[1] (currently + * being disabled in mce_cpu_quirks()) and according to the + * comment in mce_cpu_quirks(), such GART errors can be + * incorrectly triggered. We may see these errors anyway and + * unless requested by the user, they won't be reported. + * + * [1] section 13.10.1 on BIOS and Kernel Developers Guide for + * AMD NPT family 0Fh processors + */ + if (report_gart_errors == 0) + return 1; + + /* + * Only if GART error reporting is requested should we generate + * any logs. + */ + gart_tlb_error = 1; + + debugf1("GART TLB error\n"); + amd64_decode_gart_tlb_error(mci, info); + } else if (TEST_MEM_ERROR(err_code)) { + debugf1("Memory/Cache error\n"); + amd64_decode_mem_cache_error(mci, info); + } else if (TEST_BUS_ERROR(err_code)) { + debugf1("Bus (Link/DRAM) error\n"); + amd64_decode_bus_error(mci, info); + } else { + /* shouldn't reach here! */ + amd64_mc_printk(mci, KERN_WARNING, + "%s(): unknown MCE error 0x%x\n", __func__, + err_code); + } + + ext_ec = EXTRACT_EXT_ERROR_CODE(regs->nbsl); + amd64_mc_printk(mci, KERN_ERR, + "ExtErr=(0x%x) %s\n", ext_ec, ext_msgs[ext_ec]); + + if (((ext_ec >= F10_NBSL_EXT_ERR_CRC && + ext_ec <= F10_NBSL_EXT_ERR_TGT) || + (ext_ec == F10_NBSL_EXT_ERR_RMW)) && + EXTRACT_LDT_LINK(info->nbsh)) { + + amd64_mc_printk(mci, KERN_ERR, + "Error on hypertransport link: %s\n", + htlink_msgs[ + EXTRACT_LDT_LINK(info->nbsh)]); + } + + /* + * Check the UE bit of the NB status high register, if set generate some + * logs. If NOT a GART error, then process the event as a NO-INFO event. + * If it was a GART error, skip that process. + */ + if (regs->nbsh & K8_NBSH_UNCORRECTED_ERR) { + amd64_mc_printk(mci, KERN_CRIT, "uncorrected error\n"); + if (!gart_tlb_error) + edac_mc_handle_ue_no_info(mci, "UE bit is set\n"); + } + + if (regs->nbsh & K8_NBSH_PCC) + amd64_mc_printk(mci, KERN_CRIT, + "PCC (processor context corrupt) set\n"); + + return 1; +} +EXPORT_SYMBOL_GPL(amd64_process_error_info); + +/* + * The main polling 'check' function, called FROM the edac core to perform the + * error checking and if an error is encountered, error processing. + */ +static void amd64_check(struct mem_ctl_info *mci) +{ + struct amd64_error_info_regs info; + + if (amd64_get_error_info(mci, &info)) + amd64_process_error_info(mci, &info, 1); +} + +/* + * Input: + * 1) struct amd64_pvt which contains pvt->dram_f2_ctl pointer + * 2) AMD Family index value + * + * Ouput: + * Upon return of 0, the following filled in: + * + * struct pvt->addr_f1_ctl + * struct pvt->misc_f3_ctl + * + * Filled in with related device funcitions of 'dram_f2_ctl' + * These devices are "reserved" via the pci_get_device() + * + * Upon return of 1 (error status): + * + * Nothing reserved + */ +static int amd64_reserve_mc_sibling_devices(struct amd64_pvt *pvt, int mc_idx) +{ + const struct amd64_family_type *amd64_dev = &amd64_family_types[mc_idx]; + + /* Reserve the ADDRESS MAP Device */ + pvt->addr_f1_ctl = pci_get_related_function(pvt->dram_f2_ctl->vendor, + amd64_dev->addr_f1_ctl, + pvt->dram_f2_ctl); + + if (!pvt->addr_f1_ctl) { + amd64_printk(KERN_ERR, "error address map device not found: " + "vendor %x device 0x%x (broken BIOS?)\n", + PCI_VENDOR_ID_AMD, amd64_dev->addr_f1_ctl); + return 1; + } + + /* Reserve the MISC Device */ + pvt->misc_f3_ctl = pci_get_related_function(pvt->dram_f2_ctl->vendor, + amd64_dev->misc_f3_ctl, + pvt->dram_f2_ctl); + + if (!pvt->misc_f3_ctl) { + pci_dev_put(pvt->addr_f1_ctl); + pvt->addr_f1_ctl = NULL; + + amd64_printk(KERN_ERR, "error miscellaneous device not found: " + "vendor %x device 0x%x (broken BIOS?)\n", + PCI_VENDOR_ID_AMD, amd64_dev->misc_f3_ctl); + return 1; + } + + debugf1(" Addr Map device PCI Bus ID:\t%s\n", + pci_name(pvt->addr_f1_ctl)); + debugf1(" DRAM MEM-CTL PCI Bus ID:\t%s\n", + pci_name(pvt->dram_f2_ctl)); + debugf1(" Misc device PCI Bus ID:\t%s\n", + pci_name(pvt->misc_f3_ctl)); + + return 0; +} + +static void amd64_free_mc_sibling_devices(struct amd64_pvt *pvt) +{ + pci_dev_put(pvt->addr_f1_ctl); + pci_dev_put(pvt->misc_f3_ctl); +} + +/* + * Retrieve the hardware registers of the memory controller (this includes the + * 'Address Map' and 'Misc' device regs) + */ +static void amd64_read_mc_registers(struct amd64_pvt *pvt) +{ + u64 msr_val; + int dram, err = 0; + + /* + * Retrieve TOP_MEM and TOP_MEM2; no masking off of reserved bits since + * those are Read-As-Zero + */ + rdmsrl(MSR_K8_TOP_MEM1, msr_val); + pvt->top_mem = msr_val >> 23; + debugf0(" TOP_MEM=0x%08llx\n", pvt->top_mem); + + /* check first whether TOP_MEM2 is enabled */ + rdmsrl(MSR_K8_SYSCFG, msr_val); + if (msr_val & (1U << 21)) { + rdmsrl(MSR_K8_TOP_MEM2, msr_val); + pvt->top_mem2 = msr_val >> 23; + debugf0(" TOP_MEM2=0x%08llx\n", pvt->top_mem2); + } else + debugf0(" TOP_MEM2 disabled.\n"); + + amd64_cpu_display_info(pvt); + + err = pci_read_config_dword(pvt->misc_f3_ctl, K8_NBCAP, &pvt->nbcap); + if (err) + goto err_reg; + + if (pvt->ops->read_dram_ctl_register) + pvt->ops->read_dram_ctl_register(pvt); + + for (dram = 0; dram < DRAM_REG_COUNT; dram++) { + /* + * Call CPU specific READ function to get the DRAM Base and + * Limit values from the DCT. + */ + pvt->ops->read_dram_base_limit(pvt, dram); + + /* + * Only print out debug info on rows with both R and W Enabled. + * Normal processing, compiler should optimize this whole 'if' + * debug output block away. + */ + if (pvt->dram_rw_en[dram] != 0) { + debugf1(" DRAM_BASE[%d]: 0x%8.08x-%8.08x " + "DRAM_LIMIT: 0x%8.08x-%8.08x\n", + dram, + (u32)(pvt->dram_base[dram] >> 32), + (u32)(pvt->dram_base[dram] & 0xFFFFFFFF), + (u32)(pvt->dram_limit[dram] >> 32), + (u32)(pvt->dram_limit[dram] & 0xFFFFFFFF)); + debugf1(" IntlvEn=%s %s %s " + "IntlvSel=%d DstNode=%d\n", + pvt->dram_IntlvEn[dram] ? + "Enabled" : "Disabled", + (pvt->dram_rw_en[dram] & 0x2) ? "W" : "!W", + (pvt->dram_rw_en[dram] & 0x1) ? "R" : "!R", + pvt->dram_IntlvSel[dram], + pvt->dram_DstNode[dram]); + } + } + + amd64_read_dct_base_mask(pvt); + + err = pci_read_config_dword(pvt->addr_f1_ctl, K8_DHAR, &pvt->dhar); + if (err) + goto err_reg; + + amd64_read_dbam_reg(pvt); + + err = pci_read_config_dword(pvt->misc_f3_ctl, + F10_ONLINE_SPARE, &pvt->online_spare); + if (err) + goto err_reg; + + err = pci_read_config_dword(pvt->dram_f2_ctl, F10_DCLR_0, &pvt->dclr0); + if (err) + goto err_reg; + + err = pci_read_config_dword(pvt->dram_f2_ctl, F10_DCHR_0, &pvt->dchr0); + if (err) + goto err_reg; + + if (!dct_ganging_enabled(pvt)) { + err = pci_read_config_dword(pvt->dram_f2_ctl, F10_DCLR_1, + &pvt->dclr1); + if (err) + goto err_reg; + + err = pci_read_config_dword(pvt->dram_f2_ctl, F10_DCHR_1, + &pvt->dchr1); + if (err) + goto err_reg; + } + + amd64_dump_misc_regs(pvt); + +err_reg: + debugf0("Reading an MC register failed\n"); + +} + +/* + * NOTE: CPU Revision Dependent code + * + * Input: + * @csrow_nr ChipSelect Row Number (0..CHIPSELECT_COUNT-1) + * k8 private pointer to --> + * DRAM Bank Address mapping register + * node_id + * DCL register where dual_channel_active is + * + * The DBAM register consists of 4 sets of 4 bits each definitions: + * + * Bits: CSROWs + * 0-3 CSROWs 0 and 1 + * 4-7 CSROWs 2 and 3 + * 8-11 CSROWs 4 and 5 + * 12-15 CSROWs 6 and 7 + * + * Values range from: 0 to 15 + * The meaning of the values depends on CPU revision and dual-channel state, + * see relevant BKDG more info. + * + * The memory controller provides for total of only 8 CSROWs in its current + * architecture. Each "pair" of CSROWs normally represents just one DIMM in + * single channel or two (2) DIMMs in dual channel mode. + * + * The following code logic collapses the various tables for CSROW based on CPU + * revision. + * + * Returns: + * The number of PAGE_SIZE pages on the specified CSROW number it + * encompasses + * + */ +static u32 amd64_csrow_nr_pages(int csrow_nr, struct amd64_pvt *pvt) +{ + u32 dram_map, nr_pages; + + /* + * The math on this doesn't look right on the surface because x/2*4 can + * be simplified to x*2 but this expression makes use of the fact that + * it is integral math where 1/2=0. This intermediate value becomes the + * number of bits to shift the DBAM register to extract the proper CSROW + * field. + */ + dram_map = (pvt->dbam0 >> ((csrow_nr / 2) * 4)) & 0xF; + + nr_pages = pvt->ops->dbam_map_to_pages(pvt, dram_map); + + /* + * If dual channel then double the memory size of single channel. + * Channel count is 1 or 2 + */ + nr_pages <<= (pvt->channel_count - 1); + + debugf0(" (csrow=%d) DBAM map index= %d\n", csrow_nr, dram_map); + debugf0(" nr_pages= %u channel-count = %d\n", + nr_pages, pvt->channel_count); + + return nr_pages; +} + +/* + * Initialize the array of csrow attribute instances, based on the values + * from pci config hardware registers. + */ +static int amd64_init_csrows(struct mem_ctl_info *mci) +{ + struct csrow_info *csrow; + struct amd64_pvt *pvt; + u64 input_addr_min, input_addr_max, sys_addr; + int i, err = 0, empty = 1; + + pvt = mci->pvt_info; + + err = pci_read_config_dword(pvt->misc_f3_ctl, K8_NBCFG, &pvt->nbcfg); + if (err) + debugf0("Reading K8_NBCFG failed\n"); + + debugf0("NBCFG= 0x%x CHIPKILL= %s DRAM ECC= %s\n", pvt->nbcfg, + (pvt->nbcfg & K8_NBCFG_CHIPKILL) ? "Enabled" : "Disabled", + (pvt->nbcfg & K8_NBCFG_ECC_ENABLE) ? "Enabled" : "Disabled" + ); + + for (i = 0; i < CHIPSELECT_COUNT; i++) { + csrow = &mci->csrows[i]; + + if ((pvt->dcsb0[i] & K8_DCSB_CS_ENABLE) == 0) { + debugf1("----CSROW %d EMPTY for node %d\n", i, + pvt->mc_node_id); + continue; + } + + debugf1("----CSROW %d VALID for MC node %d\n", + i, pvt->mc_node_id); + + empty = 0; + csrow->nr_pages = amd64_csrow_nr_pages(i, pvt); + find_csrow_limits(mci, i, &input_addr_min, &input_addr_max); + sys_addr = input_addr_to_sys_addr(mci, input_addr_min); + csrow->first_page = (u32) (sys_addr >> PAGE_SHIFT); + sys_addr = input_addr_to_sys_addr(mci, input_addr_max); + csrow->last_page = (u32) (sys_addr >> PAGE_SHIFT); + csrow->page_mask = ~mask_from_dct_mask(pvt, i); + /* 8 bytes of resolution */ + + csrow->mtype = amd64_determine_memory_type(pvt); + + debugf1(" for MC node %d csrow %d:\n", pvt->mc_node_id, i); + debugf1(" input_addr_min: 0x%lx input_addr_max: 0x%lx\n", + (unsigned long)input_addr_min, + (unsigned long)input_addr_max); + debugf1(" sys_addr: 0x%lx page_mask: 0x%lx\n", + (unsigned long)sys_addr, csrow->page_mask); + debugf1(" nr_pages: %u first_page: 0x%lx " + "last_page: 0x%lx\n", + (unsigned)csrow->nr_pages, + csrow->first_page, csrow->last_page); + + /* + * determine whether CHIPKILL or JUST ECC or NO ECC is operating + */ + if (pvt->nbcfg & K8_NBCFG_ECC_ENABLE) + csrow->edac_mode = + (pvt->nbcfg & K8_NBCFG_CHIPKILL) ? + EDAC_S4ECD4ED : EDAC_SECDED; + else + csrow->edac_mode = EDAC_NONE; + } + + return empty; +} + +/* + * Only if 'ecc_enable_override' is set AND BIOS had ECC disabled, do "we" + * enable it. + */ +static void amd64_enable_ecc_error_reporting(struct mem_ctl_info *mci) +{ + struct amd64_pvt *pvt = mci->pvt_info; + const cpumask_t *cpumask = cpumask_of_node(pvt->mc_node_id); + int cpu, idx = 0, err = 0; + struct msr msrs[cpumask_weight(cpumask)]; + u32 value; + u32 mask = K8_NBCTL_CECCEn | K8_NBCTL_UECCEn; + + if (!ecc_enable_override) + return; + + memset(msrs, 0, sizeof(msrs)); + + amd64_printk(KERN_WARNING, + "'ecc_enable_override' parameter is active, " + "Enabling AMD ECC hardware now: CAUTION\n"); + + err = pci_read_config_dword(pvt->misc_f3_ctl, K8_NBCTL, &value); + if (err) + debugf0("Reading K8_NBCTL failed\n"); + + /* turn on UECCn and CECCEn bits */ + pvt->old_nbctl = value & mask; + pvt->nbctl_mcgctl_saved = 1; + + value |= mask; + pci_write_config_dword(pvt->misc_f3_ctl, K8_NBCTL, value); + + rdmsr_on_cpus(cpumask, K8_MSR_MCGCTL, msrs); + + for_each_cpu(cpu, cpumask) { + if (msrs[idx].l & K8_MSR_MCGCTL_NBE) + set_bit(idx, &pvt->old_mcgctl); + + msrs[idx].l |= K8_MSR_MCGCTL_NBE; + idx++; + } + wrmsr_on_cpus(cpumask, K8_MSR_MCGCTL, msrs); + + err = pci_read_config_dword(pvt->misc_f3_ctl, K8_NBCFG, &value); + if (err) + debugf0("Reading K8_NBCFG failed\n"); + + debugf0("NBCFG(1)= 0x%x CHIPKILL= %s ECC_ENABLE= %s\n", value, + (value & K8_NBCFG_CHIPKILL) ? "Enabled" : "Disabled", + (value & K8_NBCFG_ECC_ENABLE) ? "Enabled" : "Disabled"); + + if (!(value & K8_NBCFG_ECC_ENABLE)) { + amd64_printk(KERN_WARNING, + "This node reports that DRAM ECC is " + "currently Disabled; ENABLING now\n"); + + /* Attempt to turn on DRAM ECC Enable */ + value |= K8_NBCFG_ECC_ENABLE; + pci_write_config_dword(pvt->misc_f3_ctl, K8_NBCFG, value); + + err = pci_read_config_dword(pvt->misc_f3_ctl, K8_NBCFG, &value); + if (err) + debugf0("Reading K8_NBCFG failed\n"); + + if (!(value & K8_NBCFG_ECC_ENABLE)) { + amd64_printk(KERN_WARNING, + "Hardware rejects Enabling DRAM ECC checking\n" + "Check memory DIMM configuration\n"); + } else { + amd64_printk(KERN_DEBUG, + "Hardware accepted DRAM ECC Enable\n"); + } + } + debugf0("NBCFG(2)= 0x%x CHIPKILL= %s ECC_ENABLE= %s\n", value, + (value & K8_NBCFG_CHIPKILL) ? "Enabled" : "Disabled", + (value & K8_NBCFG_ECC_ENABLE) ? "Enabled" : "Disabled"); + + pvt->ctl_error_info.nbcfg = value; +} + +static void amd64_restore_ecc_error_reporting(struct amd64_pvt *pvt) +{ + const cpumask_t *cpumask = cpumask_of_node(pvt->mc_node_id); + int cpu, idx = 0, err = 0; + struct msr msrs[cpumask_weight(cpumask)]; + u32 value; + u32 mask = K8_NBCTL_CECCEn | K8_NBCTL_UECCEn; + + if (!pvt->nbctl_mcgctl_saved) + return; + + memset(msrs, 0, sizeof(msrs)); + + err = pci_read_config_dword(pvt->misc_f3_ctl, K8_NBCTL, &value); + if (err) + debugf0("Reading K8_NBCTL failed\n"); + value &= ~mask; + value |= pvt->old_nbctl; + + /* restore the NB Enable MCGCTL bit */ + pci_write_config_dword(pvt->misc_f3_ctl, K8_NBCTL, value); + + rdmsr_on_cpus(cpumask, K8_MSR_MCGCTL, msrs); + + for_each_cpu(cpu, cpumask) { + msrs[idx].l &= ~K8_MSR_MCGCTL_NBE; + msrs[idx].l |= + test_bit(idx, &pvt->old_mcgctl) << K8_MSR_MCGCTL_NBE; + idx++; + } + + wrmsr_on_cpus(cpumask, K8_MSR_MCGCTL, msrs); +} + +static void check_mcg_ctl(void *ret) +{ + u64 msr_val = 0; + u8 nbe; + + rdmsrl(MSR_IA32_MCG_CTL, msr_val); + nbe = msr_val & K8_MSR_MCGCTL_NBE; + + debugf0("core: %u, MCG_CTL: 0x%llx, NB MSR is %s\n", + raw_smp_processor_id(), msr_val, + (nbe ? "enabled" : "disabled")); + + if (!nbe) + *(int *)ret = 0; +} + +/* check MCG_CTL on all the cpus on this node */ +static int amd64_mcg_ctl_enabled_on_cpus(const cpumask_t *mask) +{ + int ret = 1; + preempt_disable(); + smp_call_function_many(mask, check_mcg_ctl, &ret, 1); + preempt_enable(); + + return ret; +} + +/* + * EDAC requires that the BIOS have ECC enabled before taking over the + * processing of ECC errors. This is because the BIOS can properly initialize + * the memory system completely. A command line option allows to force-enable + * hardware ECC later in amd64_enable_ecc_error_reporting(). + */ +static int amd64_check_ecc_enabled(struct amd64_pvt *pvt) +{ + u32 value; + int err = 0, ret = 0; + u8 ecc_enabled = 0; + + err = pci_read_config_dword(pvt->misc_f3_ctl, K8_NBCFG, &value); + if (err) + debugf0("Reading K8_NBCTL failed\n"); + + ecc_enabled = !!(value & K8_NBCFG_ECC_ENABLE); + + ret = amd64_mcg_ctl_enabled_on_cpus(cpumask_of_node(pvt->mc_node_id)); + + debugf0("K8_NBCFG=0x%x, DRAM ECC is %s\n", value, + (value & K8_NBCFG_ECC_ENABLE ? "enabled" : "disabled")); + + if (!ecc_enabled || !ret) { + if (!ecc_enabled) { + amd64_printk(KERN_WARNING, "This node reports that " + "Memory ECC is currently " + "disabled.\n"); + + amd64_printk(KERN_WARNING, "bit 0x%lx in register " + "F3x%x of the MISC_CONTROL device (%s) " + "should be enabled\n", K8_NBCFG_ECC_ENABLE, + K8_NBCFG, pci_name(pvt->misc_f3_ctl)); + } + if (!ret) { + amd64_printk(KERN_WARNING, "bit 0x%016lx in MSR 0x%08x " + "of node %d should be enabled\n", + K8_MSR_MCGCTL_NBE, MSR_IA32_MCG_CTL, + pvt->mc_node_id); + } + if (!ecc_enable_override) { + amd64_printk(KERN_WARNING, "WARNING: ECC is NOT " + "currently enabled by the BIOS. Module " + "will NOT be loaded.\n" + " Either Enable ECC in the BIOS, " + "or use the 'ecc_enable_override' " + "parameter.\n" + " Might be a BIOS bug, if BIOS says " + "ECC is enabled\n" + " Use of the override can cause " + "unknown side effects.\n"); + ret = -ENODEV; + } + } else { + amd64_printk(KERN_INFO, + "ECC is enabled by BIOS, Proceeding " + "with EDAC module initialization\n"); + + /* CLEAR the override, since BIOS controlled it */ + ecc_enable_override = 0; + } + + return ret; +} + +struct mcidev_sysfs_attribute sysfs_attrs[ARRAY_SIZE(amd64_dbg_attrs) + + ARRAY_SIZE(amd64_inj_attrs) + + 1]; + +struct mcidev_sysfs_attribute terminator = { .attr = { .name = NULL } }; + +static void amd64_set_mc_sysfs_attributes(struct mem_ctl_info *mci) +{ + unsigned int i = 0, j = 0; + + for (; i < ARRAY_SIZE(amd64_dbg_attrs); i++) + sysfs_attrs[i] = amd64_dbg_attrs[i]; + + for (j = 0; j < ARRAY_SIZE(amd64_inj_attrs); j++, i++) + sysfs_attrs[i] = amd64_inj_attrs[j]; + + sysfs_attrs[i] = terminator; + + mci->mc_driver_sysfs_attributes = sysfs_attrs; +} + +static void amd64_setup_mci_misc_attributes(struct mem_ctl_info *mci) +{ + struct amd64_pvt *pvt = mci->pvt_info; + + mci->mtype_cap = MEM_FLAG_DDR2 | MEM_FLAG_RDDR2; + mci->edac_ctl_cap = EDAC_FLAG_NONE; + mci->edac_cap = EDAC_FLAG_NONE; + + if (pvt->nbcap & K8_NBCAP_SECDED) + mci->edac_ctl_cap |= EDAC_FLAG_SECDED; + + if (pvt->nbcap & K8_NBCAP_CHIPKILL) + mci->edac_ctl_cap |= EDAC_FLAG_S4ECD4ED; + + mci->edac_cap = amd64_determine_edac_cap(pvt); + mci->mod_name = EDAC_MOD_STR; + mci->mod_ver = EDAC_AMD64_VERSION; + mci->ctl_name = get_amd_family_name(pvt->mc_type_index); + mci->dev_name = pci_name(pvt->dram_f2_ctl); + mci->ctl_page_to_phys = NULL; + + /* IMPORTANT: Set the polling 'check' function in this module */ + mci->edac_check = amd64_check; + + /* memory scrubber interface */ + mci->set_sdram_scrub_rate = amd64_set_scrub_rate; + mci->get_sdram_scrub_rate = amd64_get_scrub_rate; +} + +/* + * Init stuff for this DRAM Controller device. + * + * Due to a hardware feature on Fam10h CPUs, the Enable Extended Configuration + * Space feature MUST be enabled on ALL Processors prior to actually reading + * from the ECS registers. Since the loading of the module can occur on any + * 'core', and cores don't 'see' all the other processors ECS data when the + * others are NOT enabled. Our solution is to first enable ECS access in this + * routine on all processors, gather some data in a amd64_pvt structure and + * later come back in a finish-setup function to perform that final + * initialization. See also amd64_init_2nd_stage() for that. + */ +static int amd64_probe_one_instance(struct pci_dev *dram_f2_ctl, + int mc_type_index) +{ + struct amd64_pvt *pvt = NULL; + int err = 0, ret; + + ret = -ENOMEM; + pvt = kzalloc(sizeof(struct amd64_pvt), GFP_KERNEL); + if (!pvt) + goto err_exit; + + pvt->mc_node_id = get_mc_node_id_from_pdev(dram_f2_ctl); + + pvt->dram_f2_ctl = dram_f2_ctl; + pvt->ext_model = boot_cpu_data.x86_model >> 4; + pvt->mc_type_index = mc_type_index; + pvt->ops = family_ops(mc_type_index); + pvt->old_mcgctl = 0; + + /* + * We have the dram_f2_ctl device as an argument, now go reserve its + * sibling devices from the PCI system. + */ + ret = -ENODEV; + err = amd64_reserve_mc_sibling_devices(pvt, mc_type_index); + if (err) + goto err_free; + + ret = -EINVAL; + err = amd64_check_ecc_enabled(pvt); + if (err) + goto err_put; + + /* + * Key operation here: setup of HW prior to performing ops on it. Some + * setup is required to access ECS data. After this is performed, the + * 'teardown' function must be called upon error and normal exit paths. + */ + if (boot_cpu_data.x86 >= 0x10) + amd64_setup(pvt); + + /* + * Save the pointer to the private data for use in 2nd initialization + * stage + */ + pvt_lookup[pvt->mc_node_id] = pvt; + + return 0; + +err_put: + amd64_free_mc_sibling_devices(pvt); + +err_free: + kfree(pvt); + +err_exit: + return ret; +} + +/* + * This is the finishing stage of the init code. Needs to be performed after all + * MCs' hardware have been prepped for accessing extended config space. + */ +static int amd64_init_2nd_stage(struct amd64_pvt *pvt) +{ + int node_id = pvt->mc_node_id; + struct mem_ctl_info *mci; + int ret, err = 0; + + amd64_read_mc_registers(pvt); + + ret = -ENODEV; + if (pvt->ops->probe_valid_hardware) { + err = pvt->ops->probe_valid_hardware(pvt); + if (err) + goto err_exit; + } + + /* + * We need to determine how many memory channels there are. Then use + * that information for calculating the size of the dynamic instance + * tables in the 'mci' structure + */ + pvt->channel_count = pvt->ops->early_channel_count(pvt); + if (pvt->channel_count < 0) + goto err_exit; + + ret = -ENOMEM; + mci = edac_mc_alloc(0, CHIPSELECT_COUNT, pvt->channel_count, node_id); + if (!mci) + goto err_exit; + + mci->pvt_info = pvt; + + mci->dev = &pvt->dram_f2_ctl->dev; + amd64_setup_mci_misc_attributes(mci); + + if (amd64_init_csrows(mci)) + mci->edac_cap = EDAC_FLAG_NONE; + + amd64_enable_ecc_error_reporting(mci); + amd64_set_mc_sysfs_attributes(mci); + + ret = -ENODEV; + if (edac_mc_add_mc(mci)) { + debugf1("failed edac_mc_add_mc()\n"); + goto err_add_mc; + } + + mci_lookup[node_id] = mci; + pvt_lookup[node_id] = NULL; + return 0; + +err_add_mc: + edac_mc_free(mci); + +err_exit: + debugf0("failure to init 2nd stage: ret=%d\n", ret); + + amd64_restore_ecc_error_reporting(pvt); + + if (boot_cpu_data.x86 > 0xf) + amd64_teardown(pvt); + + amd64_free_mc_sibling_devices(pvt); + + kfree(pvt_lookup[pvt->mc_node_id]); + pvt_lookup[node_id] = NULL; + + return ret; +} + + +static int __devinit amd64_init_one_instance(struct pci_dev *pdev, + const struct pci_device_id *mc_type) +{ + int ret = 0; + + debugf0("(MC node=%d,mc_type='%s')\n", + get_mc_node_id_from_pdev(pdev), + get_amd_family_name(mc_type->driver_data)); + + ret = pci_enable_device(pdev); + if (ret < 0) + ret = -EIO; + else + ret = amd64_probe_one_instance(pdev, mc_type->driver_data); + + if (ret < 0) + debugf0("ret=%d\n", ret); + + return ret; +} + +static void __devexit amd64_remove_one_instance(struct pci_dev *pdev) +{ + struct mem_ctl_info *mci; + struct amd64_pvt *pvt; + + /* Remove from EDAC CORE tracking list */ + mci = edac_mc_del_mc(&pdev->dev); + if (!mci) + return; + + pvt = mci->pvt_info; + + amd64_restore_ecc_error_reporting(pvt); + + if (boot_cpu_data.x86 > 0xf) + amd64_teardown(pvt); + + amd64_free_mc_sibling_devices(pvt); + + kfree(pvt); + mci->pvt_info = NULL; + + mci_lookup[pvt->mc_node_id] = NULL; + + /* Free the EDAC CORE resources */ + edac_mc_free(mci); +} + +/* + * This table is part of the interface for loading drivers for PCI devices. The + * PCI core identifies what devices are on a system during boot, and then + * inquiry this table to see if this driver is for a given device found. + */ +static const struct pci_device_id amd64_pci_table[] __devinitdata = { + { + .vendor = PCI_VENDOR_ID_AMD, + .device = PCI_DEVICE_ID_AMD_K8_NB_MEMCTL, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .class = 0, + .class_mask = 0, + .driver_data = K8_CPUS + }, + { + .vendor = PCI_VENDOR_ID_AMD, + .device = PCI_DEVICE_ID_AMD_10H_NB_DRAM, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .class = 0, + .class_mask = 0, + .driver_data = F10_CPUS + }, + { + .vendor = PCI_VENDOR_ID_AMD, + .device = PCI_DEVICE_ID_AMD_11H_NB_DRAM, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .class = 0, + .class_mask = 0, + .driver_data = F11_CPUS + }, + {0, } +}; +MODULE_DEVICE_TABLE(pci, amd64_pci_table); + +static struct pci_driver amd64_pci_driver = { + .name = EDAC_MOD_STR, + .probe = amd64_init_one_instance, + .remove = __devexit_p(amd64_remove_one_instance), + .id_table = amd64_pci_table, +}; + +static void amd64_setup_pci_device(void) +{ + struct mem_ctl_info *mci; + struct amd64_pvt *pvt; + + if (amd64_ctl_pci) + return; + + mci = mci_lookup[0]; + if (mci) { + + pvt = mci->pvt_info; + amd64_ctl_pci = + edac_pci_create_generic_ctl(&pvt->dram_f2_ctl->dev, + EDAC_MOD_STR); + + if (!amd64_ctl_pci) { + pr_warning("%s(): Unable to create PCI control\n", + __func__); + + pr_warning("%s(): PCI error report via EDAC not set\n", + __func__); + } + } +} + +static int __init amd64_edac_init(void) +{ + int nb, err = -ENODEV; + + edac_printk(KERN_INFO, EDAC_MOD_STR, EDAC_AMD64_VERSION "\n"); + + opstate_init(); + + if (cache_k8_northbridges() < 0) + goto err_exit; + + err = pci_register_driver(&amd64_pci_driver); + if (err) + return err; + + /* + * At this point, the array 'pvt_lookup[]' contains pointers to alloc'd + * amd64_pvt structs. These will be used in the 2nd stage init function + * to finish initialization of the MC instances. + */ + for (nb = 0; nb < num_k8_northbridges; nb++) { + if (!pvt_lookup[nb]) + continue; + + err = amd64_init_2nd_stage(pvt_lookup[nb]); + if (err) + goto err_exit; + } + + amd64_setup_pci_device(); + + return 0; + +err_exit: + debugf0("'finish_setup' stage failed\n"); + pci_unregister_driver(&amd64_pci_driver); + + return err; +} + +static void __exit amd64_edac_exit(void) +{ + if (amd64_ctl_pci) + edac_pci_release_generic_ctl(amd64_ctl_pci); + + pci_unregister_driver(&amd64_pci_driver); +} + +module_init(amd64_edac_init); +module_exit(amd64_edac_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("SoftwareBitMaker: Doug Thompson, " + "Dave Peterson, Thayne Harbaugh"); +MODULE_DESCRIPTION("MC support for AMD64 memory controllers - " + EDAC_AMD64_VERSION); + +module_param(edac_op_state, int, 0444); +MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI"); diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h new file mode 100644 index 00000000000..a159957e167 --- /dev/null +++ b/drivers/edac/amd64_edac.h @@ -0,0 +1,644 @@ +/* + * AMD64 class Memory Controller kernel module + * + * Copyright (c) 2009 SoftwareBitMaker. + * Copyright (c) 2009 Advanced Micro Devices, Inc. + * + * This file may be distributed under the terms of the + * GNU General Public License. + * + * Originally Written by Thayne Harbaugh + * + * Changes by Douglas "norsk" Thompson <dougthompson@xmission.com>: + * - K8 CPU Revision D and greater support + * + * Changes by Dave Peterson <dsp@llnl.gov> <dave_peterson@pobox.com>: + * - Module largely rewritten, with new (and hopefully correct) + * code for dealing with node and chip select interleaving, + * various code cleanup, and bug fixes + * - Added support for memory hoisting using DRAM hole address + * register + * + * Changes by Douglas "norsk" Thompson <dougthompson@xmission.com>: + * -K8 Rev (1207) revision support added, required Revision + * specific mini-driver code to support Rev F as well as + * prior revisions + * + * Changes by Douglas "norsk" Thompson <dougthompson@xmission.com>: + * -Family 10h revision support added. New PCI Device IDs, + * indicating new changes. Actual registers modified + * were slight, less than the Rev E to Rev F transition + * but changing the PCI Device ID was the proper thing to + * do, as it provides for almost automactic family + * detection. The mods to Rev F required more family + * information detection. + * + * Changes/Fixes by Borislav Petkov <borislav.petkov@amd.com>: + * - misc fixes and code cleanups + * + * This module is based on the following documents + * (available from http://www.amd.com/): + * + * Title: BIOS and Kernel Developer's Guide for AMD Athlon 64 and AMD + * Opteron Processors + * AMD publication #: 26094 + *` Revision: 3.26 + * + * Title: BIOS and Kernel Developer's Guide for AMD NPT Family 0Fh + * Processors + * AMD publication #: 32559 + * Revision: 3.00 + * Issue Date: May 2006 + * + * Title: BIOS and Kernel Developer's Guide (BKDG) For AMD Family 10h + * Processors + * AMD publication #: 31116 + * Revision: 3.00 + * Issue Date: September 07, 2007 + * + * Sections in the first 2 documents are no longer in sync with each other. + * The Family 10h BKDG was totally re-written from scratch with a new + * presentation model. + * Therefore, comments that refer to a Document section might be off. + */ + +#include <linux/module.h> +#include <linux/ctype.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/pci_ids.h> +#include <linux/slab.h> +#include <linux/mmzone.h> +#include <linux/edac.h> +#include <asm/msr.h> +#include "edac_core.h" + +#define amd64_printk(level, fmt, arg...) \ + edac_printk(level, "amd64", fmt, ##arg) + +#define amd64_mc_printk(mci, level, fmt, arg...) \ + edac_mc_chipset_printk(mci, level, "amd64", fmt, ##arg) + +/* + * Throughout the comments in this code, the following terms are used: + * + * SysAddr, DramAddr, and InputAddr + * + * These terms come directly from the amd64 documentation + * (AMD publication #26094). They are defined as follows: + * + * SysAddr: + * This is a physical address generated by a CPU core or a device + * doing DMA. If generated by a CPU core, a SysAddr is the result of + * a virtual to physical address translation by the CPU core's address + * translation mechanism (MMU). + * + * DramAddr: + * A DramAddr is derived from a SysAddr by subtracting an offset that + * depends on which node the SysAddr maps to and whether the SysAddr + * is within a range affected by memory hoisting. The DRAM Base + * (section 3.4.4.1) and DRAM Limit (section 3.4.4.2) registers + * determine which node a SysAddr maps to. + * + * If the DRAM Hole Address Register (DHAR) is enabled and the SysAddr + * is within the range of addresses specified by this register, then + * a value x from the DHAR is subtracted from the SysAddr to produce a + * DramAddr. Here, x represents the base address for the node that + * the SysAddr maps to plus an offset due to memory hoisting. See + * section 3.4.8 and the comments in amd64_get_dram_hole_info() and + * sys_addr_to_dram_addr() below for more information. + * + * If the SysAddr is not affected by the DHAR then a value y is + * subtracted from the SysAddr to produce a DramAddr. Here, y is the + * base address for the node that the SysAddr maps to. See section + * 3.4.4 and the comments in sys_addr_to_dram_addr() below for more + * information. + * + * InputAddr: + * A DramAddr is translated to an InputAddr before being passed to the + * memory controller for the node that the DramAddr is associated + * with. The memory controller then maps the InputAddr to a csrow. + * If node interleaving is not in use, then the InputAddr has the same + * value as the DramAddr. Otherwise, the InputAddr is produced by + * discarding the bits used for node interleaving from the DramAddr. + * See section 3.4.4 for more information. + * + * The memory controller for a given node uses its DRAM CS Base and + * DRAM CS Mask registers to map an InputAddr to a csrow. See + * sections 3.5.4 and 3.5.5 for more information. + */ + +#define EDAC_AMD64_VERSION " Ver: 3.2.0 " __DATE__ +#define EDAC_MOD_STR "amd64_edac" + +/* Extended Model from CPUID, for CPU Revision numbers */ +#define OPTERON_CPU_LE_REV_C 0 +#define OPTERON_CPU_REV_D 1 +#define OPTERON_CPU_REV_E 2 + +/* NPT processors have the following Extended Models */ +#define OPTERON_CPU_REV_F 4 +#define OPTERON_CPU_REV_FA 5 + +/* Hardware limit on ChipSelect rows per MC and processors per system */ +#define CHIPSELECT_COUNT 8 +#define DRAM_REG_COUNT 8 + + +/* + * PCI-defined configuration space registers + */ + + +/* + * Function 1 - Address Map + */ +#define K8_DRAM_BASE_LOW 0x40 +#define K8_DRAM_LIMIT_LOW 0x44 +#define K8_DHAR 0xf0 + +#define DHAR_VALID BIT(0) +#define F10_DRAM_MEM_HOIST_VALID BIT(1) + +#define DHAR_BASE_MASK 0xff000000 +#define dhar_base(dhar) (dhar & DHAR_BASE_MASK) + +#define K8_DHAR_OFFSET_MASK 0x0000ff00 +#define k8_dhar_offset(dhar) ((dhar & K8_DHAR_OFFSET_MASK) << 16) + +#define F10_DHAR_OFFSET_MASK 0x0000ff80 + /* NOTE: Extra mask bit vs K8 */ +#define f10_dhar_offset(dhar) ((dhar & F10_DHAR_OFFSET_MASK) << 16) + + +/* F10 High BASE/LIMIT registers */ +#define F10_DRAM_BASE_HIGH 0x140 +#define F10_DRAM_LIMIT_HIGH 0x144 + + +/* + * Function 2 - DRAM controller + */ +#define K8_DCSB0 0x40 +#define F10_DCSB1 0x140 + +#define K8_DCSB_CS_ENABLE BIT(0) +#define K8_DCSB_NPT_SPARE BIT(1) +#define K8_DCSB_NPT_TESTFAIL BIT(2) + +/* + * REV E: select [31:21] and [15:9] from DCSB and the shift amount to form + * the address + */ +#define REV_E_DCSB_BASE_BITS (0xFFE0FE00ULL) +#define REV_E_DCS_SHIFT 4 +#define REV_E_DCSM_COUNT 8 + +#define REV_F_F1Xh_DCSB_BASE_BITS (0x1FF83FE0ULL) +#define REV_F_F1Xh_DCS_SHIFT 8 + +/* + * REV F and later: selects [28:19] and [13:5] from DCSB and the shift amount + * to form the address + */ +#define REV_F_DCSB_BASE_BITS (0x1FF83FE0ULL) +#define REV_F_DCS_SHIFT 8 +#define REV_F_DCSM_COUNT 4 +#define F10_DCSM_COUNT 4 +#define F11_DCSM_COUNT 2 + +/* DRAM CS Mask Registers */ +#define K8_DCSM0 0x60 +#define F10_DCSM1 0x160 + +/* REV E: select [29:21] and [15:9] from DCSM */ +#define REV_E_DCSM_MASK_BITS 0x3FE0FE00 + +/* unused bits [24:20] and [12:0] */ +#define REV_E_DCS_NOTUSED_BITS 0x01F01FFF + +/* REV F and later: select [28:19] and [13:5] from DCSM */ +#define REV_F_F1Xh_DCSM_MASK_BITS 0x1FF83FE0 + +/* unused bits [26:22] and [12:0] */ +#define REV_F_F1Xh_DCS_NOTUSED_BITS 0x07C01FFF + +#define DBAM0 0x80 +#define DBAM1 0x180 + +/* Extract the DIMM 'type' on the i'th DIMM from the DBAM reg value passed */ +#define DBAM_DIMM(i, reg) ((((reg) >> (4*i))) & 0xF) + +#define DBAM_MAX_VALUE 11 + + +#define F10_DCLR_0 0x90 +#define F10_DCLR_1 0x190 +#define REVE_WIDTH_128 BIT(16) +#define F10_WIDTH_128 BIT(11) + + +#define F10_DCHR_0 0x94 +#define F10_DCHR_1 0x194 + +#define F10_DCHR_FOUR_RANK_DIMM BIT(18) +#define F10_DCHR_Ddr3Mode BIT(8) +#define F10_DCHR_MblMode BIT(6) + + +#define F10_DCTL_SEL_LOW 0x110 + +#define dct_sel_baseaddr(pvt) \ + ((pvt->dram_ctl_select_low) & 0xFFFFF800) + +#define dct_sel_interleave_addr(pvt) \ + (((pvt->dram_ctl_select_low) >> 6) & 0x3) + +enum { + F10_DCTL_SEL_LOW_DctSelHiRngEn = BIT(0), + F10_DCTL_SEL_LOW_DctSelIntLvEn = BIT(2), + F10_DCTL_SEL_LOW_DctGangEn = BIT(4), + F10_DCTL_SEL_LOW_DctDatIntLv = BIT(5), + F10_DCTL_SEL_LOW_DramEnable = BIT(8), + F10_DCTL_SEL_LOW_MemCleared = BIT(10), +}; + +#define dct_high_range_enabled(pvt) \ + (pvt->dram_ctl_select_low & F10_DCTL_SEL_LOW_DctSelHiRngEn) + +#define dct_interleave_enabled(pvt) \ + (pvt->dram_ctl_select_low & F10_DCTL_SEL_LOW_DctSelIntLvEn) + +#define dct_ganging_enabled(pvt) \ + (pvt->dram_ctl_select_low & F10_DCTL_SEL_LOW_DctGangEn) + +#define dct_data_intlv_enabled(pvt) \ + (pvt->dram_ctl_select_low & F10_DCTL_SEL_LOW_DctDatIntLv) + +#define dct_dram_enabled(pvt) \ + (pvt->dram_ctl_select_low & F10_DCTL_SEL_LOW_DramEnable) + +#define dct_memory_cleared(pvt) \ + (pvt->dram_ctl_select_low & F10_DCTL_SEL_LOW_MemCleared) + + +#define F10_DCTL_SEL_HIGH 0x114 + + +/* + * Function 3 - Misc Control + */ +#define K8_NBCTL 0x40 + +/* Correctable ECC error reporting enable */ +#define K8_NBCTL_CECCEn BIT(0) + +/* UnCorrectable ECC error reporting enable */ +#define K8_NBCTL_UECCEn BIT(1) + +#define K8_NBCFG 0x44 +#define K8_NBCFG_CHIPKILL BIT(23) +#define K8_NBCFG_ECC_ENABLE BIT(22) + +#define K8_NBSL 0x48 + + +#define EXTRACT_HIGH_SYNDROME(x) (((x) >> 24) & 0xff) +#define EXTRACT_EXT_ERROR_CODE(x) (((x) >> 16) & 0x1f) + +/* Family F10h: Normalized Extended Error Codes */ +#define F10_NBSL_EXT_ERR_RES 0x0 +#define F10_NBSL_EXT_ERR_CRC 0x1 +#define F10_NBSL_EXT_ERR_SYNC 0x2 +#define F10_NBSL_EXT_ERR_MST 0x3 +#define F10_NBSL_EXT_ERR_TGT 0x4 +#define F10_NBSL_EXT_ERR_GART 0x5 +#define F10_NBSL_EXT_ERR_RMW 0x6 +#define F10_NBSL_EXT_ERR_WDT 0x7 +#define F10_NBSL_EXT_ERR_ECC 0x8 +#define F10_NBSL_EXT_ERR_DEV 0x9 +#define F10_NBSL_EXT_ERR_LINK_DATA 0xA + +/* Next two are overloaded values */ +#define F10_NBSL_EXT_ERR_LINK_PROTO 0xB +#define F10_NBSL_EXT_ERR_L3_PROTO 0xB + +#define F10_NBSL_EXT_ERR_NB_ARRAY 0xC +#define F10_NBSL_EXT_ERR_DRAM_PARITY 0xD +#define F10_NBSL_EXT_ERR_LINK_RETRY 0xE + +/* Next two are overloaded values */ +#define F10_NBSL_EXT_ERR_GART_WALK 0xF +#define F10_NBSL_EXT_ERR_DEV_WALK 0xF + +/* 0x10 to 0x1B: Reserved */ +#define F10_NBSL_EXT_ERR_L3_DATA 0x1C +#define F10_NBSL_EXT_ERR_L3_TAG 0x1D +#define F10_NBSL_EXT_ERR_L3_LRU 0x1E + +/* K8: Normalized Extended Error Codes */ +#define K8_NBSL_EXT_ERR_ECC 0x0 +#define K8_NBSL_EXT_ERR_CRC 0x1 +#define K8_NBSL_EXT_ERR_SYNC 0x2 +#define K8_NBSL_EXT_ERR_MST 0x3 +#define K8_NBSL_EXT_ERR_TGT 0x4 +#define K8_NBSL_EXT_ERR_GART 0x5 +#define K8_NBSL_EXT_ERR_RMW 0x6 +#define K8_NBSL_EXT_ERR_WDT 0x7 +#define K8_NBSL_EXT_ERR_CHIPKILL_ECC 0x8 +#define K8_NBSL_EXT_ERR_DRAM_PARITY 0xD + +#define EXTRACT_ERROR_CODE(x) ((x) & 0xffff) +#define TEST_TLB_ERROR(x) (((x) & 0xFFF0) == 0x0010) +#define TEST_MEM_ERROR(x) (((x) & 0xFF00) == 0x0100) +#define TEST_BUS_ERROR(x) (((x) & 0xF800) == 0x0800) +#define EXTRACT_TT_CODE(x) (((x) >> 2) & 0x3) +#define EXTRACT_II_CODE(x) (((x) >> 2) & 0x3) +#define EXTRACT_LL_CODE(x) (((x) >> 0) & 0x3) +#define EXTRACT_RRRR_CODE(x) (((x) >> 4) & 0xf) +#define EXTRACT_TO_CODE(x) (((x) >> 8) & 0x1) +#define EXTRACT_PP_CODE(x) (((x) >> 9) & 0x3) + +/* + * The following are for BUS type errors AFTER values have been normalized by + * shifting right + */ +#define K8_NBSL_PP_SRC 0x0 +#define K8_NBSL_PP_RES 0x1 +#define K8_NBSL_PP_OBS 0x2 +#define K8_NBSL_PP_GENERIC 0x3 + + +#define K8_NBSH 0x4C + +#define K8_NBSH_VALID_BIT BIT(31) +#define K8_NBSH_OVERFLOW BIT(30) +#define K8_NBSH_UNCORRECTED_ERR BIT(29) +#define K8_NBSH_ERR_ENABLE BIT(28) +#define K8_NBSH_MISC_ERR_VALID BIT(27) +#define K8_NBSH_VALID_ERROR_ADDR BIT(26) +#define K8_NBSH_PCC BIT(25) +#define K8_NBSH_CECC BIT(14) +#define K8_NBSH_UECC BIT(13) +#define K8_NBSH_ERR_SCRUBER BIT(8) +#define K8_NBSH_CORE3 BIT(3) +#define K8_NBSH_CORE2 BIT(2) +#define K8_NBSH_CORE1 BIT(1) +#define K8_NBSH_CORE0 BIT(0) + +#define EXTRACT_LDT_LINK(x) (((x) >> 4) & 0x7) +#define EXTRACT_ERR_CPU_MAP(x) ((x) & 0xF) +#define EXTRACT_LOW_SYNDROME(x) (((x) >> 15) & 0xff) + + +#define K8_NBEAL 0x50 +#define K8_NBEAH 0x54 +#define K8_SCRCTRL 0x58 + +#define F10_NB_CFG_LOW 0x88 +#define F10_NB_CFG_LOW_ENABLE_EXT_CFG BIT(14) + +#define F10_NB_CFG_HIGH 0x8C + +#define F10_ONLINE_SPARE 0xB0 +#define F10_ONLINE_SPARE_SWAPDONE0(x) ((x) & BIT(1)) +#define F10_ONLINE_SPARE_SWAPDONE1(x) ((x) & BIT(3)) +#define F10_ONLINE_SPARE_BADDRAM_CS0(x) (((x) >> 4) & 0x00000007) +#define F10_ONLINE_SPARE_BADDRAM_CS1(x) (((x) >> 8) & 0x00000007) + +#define F10_NB_ARRAY_ADDR 0xB8 + +#define F10_NB_ARRAY_DRAM_ECC 0x80000000 + +/* Bits [2:1] are used to select 16-byte section within a 64-byte cacheline */ +#define SET_NB_ARRAY_ADDRESS(section) (((section) & 0x3) << 1) + +#define F10_NB_ARRAY_DATA 0xBC + +#define SET_NB_DRAM_INJECTION_WRITE(word, bits) \ + (BIT(((word) & 0xF) + 20) | \ + BIT(17) | \ + ((bits) & 0xF)) + +#define SET_NB_DRAM_INJECTION_READ(word, bits) \ + (BIT(((word) & 0xF) + 20) | \ + BIT(16) | \ + ((bits) & 0xF)) + +#define K8_NBCAP 0xE8 +#define K8_NBCAP_CORES (BIT(12)|BIT(13)) +#define K8_NBCAP_CHIPKILL BIT(4) +#define K8_NBCAP_SECDED BIT(3) +#define K8_NBCAP_8_NODE BIT(2) +#define K8_NBCAP_DUAL_NODE BIT(1) +#define K8_NBCAP_DCT_DUAL BIT(0) + +/* + * MSR Regs + */ +#define K8_MSR_MCGCTL 0x017b +#define K8_MSR_MCGCTL_NBE BIT(4) + +#define K8_MSR_MC4CTL 0x0410 +#define K8_MSR_MC4STAT 0x0411 +#define K8_MSR_MC4ADDR 0x0412 + +/* AMD sets the first MC device at device ID 0x18. */ +static inline int get_mc_node_id_from_pdev(struct pci_dev *pdev) +{ + return PCI_SLOT(pdev->devfn) - 0x18; +} + +enum amd64_chipset_families { + K8_CPUS = 0, + F10_CPUS, + F11_CPUS, +}; + +/* + * Structure to hold: + * + * 1) dynamically read status and error address HW registers + * 2) sysfs entered values + * 3) MCE values + * + * Depends on entry into the modules + */ +struct amd64_error_info_regs { + u32 nbcfg; + u32 nbsh; + u32 nbsl; + u32 nbeah; + u32 nbeal; +}; + +/* Error injection control structure */ +struct error_injection { + u32 section; + u32 word; + u32 bit_map; +}; + +struct amd64_pvt { + /* pci_device handles which we utilize */ + struct pci_dev *addr_f1_ctl; + struct pci_dev *dram_f2_ctl; + struct pci_dev *misc_f3_ctl; + + int mc_node_id; /* MC index of this MC node */ + int ext_model; /* extended model value of this node */ + + struct low_ops *ops; /* pointer to per PCI Device ID func table */ + + int channel_count; + + /* Raw registers */ + u32 dclr0; /* DRAM Configuration Low DCT0 reg */ + u32 dclr1; /* DRAM Configuration Low DCT1 reg */ + u32 dchr0; /* DRAM Configuration High DCT0 reg */ + u32 dchr1; /* DRAM Configuration High DCT1 reg */ + u32 nbcap; /* North Bridge Capabilities */ + u32 nbcfg; /* F10 North Bridge Configuration */ + u32 ext_nbcfg; /* Extended F10 North Bridge Configuration */ + u32 dhar; /* DRAM Hoist reg */ + u32 dbam0; /* DRAM Base Address Mapping reg for DCT0 */ + u32 dbam1; /* DRAM Base Address Mapping reg for DCT1 */ + + /* DRAM CS Base Address Registers F2x[1,0][5C:40] */ + u32 dcsb0[CHIPSELECT_COUNT]; + u32 dcsb1[CHIPSELECT_COUNT]; + + /* DRAM CS Mask Registers F2x[1,0][6C:60] */ + u32 dcsm0[CHIPSELECT_COUNT]; + u32 dcsm1[CHIPSELECT_COUNT]; + + /* + * Decoded parts of DRAM BASE and LIMIT Registers + * F1x[78,70,68,60,58,50,48,40] + */ + u64 dram_base[DRAM_REG_COUNT]; + u64 dram_limit[DRAM_REG_COUNT]; + u8 dram_IntlvSel[DRAM_REG_COUNT]; + u8 dram_IntlvEn[DRAM_REG_COUNT]; + u8 dram_DstNode[DRAM_REG_COUNT]; + u8 dram_rw_en[DRAM_REG_COUNT]; + + /* + * The following fields are set at (load) run time, after CPU revision + * has been determined, since the dct_base and dct_mask registers vary + * based on revision + */ + u32 dcsb_base; /* DCSB base bits */ + u32 dcsm_mask; /* DCSM mask bits */ + u32 num_dcsm; /* Number of DCSM registers */ + u32 dcs_mask_notused; /* DCSM notused mask bits */ + u32 dcs_shift; /* DCSB and DCSM shift value */ + + u64 top_mem; /* top of memory below 4GB */ + u64 top_mem2; /* top of memory above 4GB */ + + u32 dram_ctl_select_low; /* DRAM Controller Select Low Reg */ + u32 dram_ctl_select_high; /* DRAM Controller Select High Reg */ + u32 online_spare; /* On-Line spare Reg */ + + /* temp storage for when input is received from sysfs */ + struct amd64_error_info_regs ctl_error_info; + + /* place to store error injection parameters prior to issue */ + struct error_injection injection; + + /* Save old hw registers' values before we modified them */ + u32 nbctl_mcgctl_saved; /* When true, following 2 are valid */ + u32 old_nbctl; + unsigned long old_mcgctl; /* per core on this node */ + + /* MC Type Index value: socket F vs Family 10h */ + u32 mc_type_index; + + /* misc settings */ + struct flags { + unsigned long cf8_extcfg:1; + } flags; +}; + +struct scrubrate { + u32 scrubval; /* bit pattern for scrub rate */ + u32 bandwidth; /* bandwidth consumed (bytes/sec) */ +}; + +extern struct scrubrate scrubrates[23]; +extern u32 revf_quad_ddr2_shift[16]; +extern const char *tt_msgs[4]; +extern const char *ll_msgs[4]; +extern const char *rrrr_msgs[16]; +extern const char *to_msgs[2]; +extern const char *pp_msgs[4]; +extern const char *ii_msgs[4]; +extern const char *ext_msgs[32]; +extern const char *htlink_msgs[8]; + +#ifdef CONFIG_EDAC_DEBUG +#define NUM_DBG_ATTRS 9 +#else +#define NUM_DBG_ATTRS 0 +#endif + +#ifdef CONFIG_EDAC_AMD64_ERROR_INJECTION +#define NUM_INJ_ATTRS 5 +#else +#define NUM_INJ_ATTRS 0 +#endif + +extern struct mcidev_sysfs_attribute amd64_dbg_attrs[NUM_DBG_ATTRS], + amd64_inj_attrs[NUM_INJ_ATTRS]; + +/* + * Each of the PCI Device IDs types have their own set of hardware accessor + * functions and per device encoding/decoding logic. + */ +struct low_ops { + int (*probe_valid_hardware)(struct amd64_pvt *pvt); + int (*early_channel_count)(struct amd64_pvt *pvt); + + u64 (*get_error_address)(struct mem_ctl_info *mci, + struct amd64_error_info_regs *info); + void (*read_dram_base_limit)(struct amd64_pvt *pvt, int dram); + void (*read_dram_ctl_register)(struct amd64_pvt *pvt); + void (*map_sysaddr_to_csrow)(struct mem_ctl_info *mci, + struct amd64_error_info_regs *info, + u64 SystemAddr); + int (*dbam_map_to_pages)(struct amd64_pvt *pvt, int dram_map); +}; + +struct amd64_family_type { + const char *ctl_name; + u16 addr_f1_ctl; + u16 misc_f3_ctl; + struct low_ops ops; +}; + +static struct amd64_family_type amd64_family_types[]; + +static inline const char *get_amd_family_name(int index) +{ + return amd64_family_types[index].ctl_name; +} + +static inline struct low_ops *family_ops(int index) +{ + return &amd64_family_types[index].ops; +} + +/* + * For future CPU versions, verify the following as new 'slow' rates appear and + * modify the necessary skip values for the supported CPU. + */ +#define K8_MIN_SCRUB_RATE_BITS 0x0 +#define F10_MIN_SCRUB_RATE_BITS 0x5 +#define F11_MIN_SCRUB_RATE_BITS 0x6 + +int amd64_process_error_info(struct mem_ctl_info *mci, + struct amd64_error_info_regs *info, + int handle_errors); +int amd64_get_dram_hole_info(struct mem_ctl_info *mci, u64 *hole_base, + u64 *hole_offset, u64 *hole_size); diff --git a/drivers/edac/amd64_edac_dbg.c b/drivers/edac/amd64_edac_dbg.c new file mode 100644 index 00000000000..0a41b248a4a --- /dev/null +++ b/drivers/edac/amd64_edac_dbg.c @@ -0,0 +1,255 @@ +#include "amd64_edac.h" + +/* + * accept a hex value and store it into the virtual error register file, field: + * nbeal and nbeah. Assume virtual error values have already been set for: NBSL, + * NBSH and NBCFG. Then proceed to map the error values to a MC, CSROW and + * CHANNEL + */ +static ssize_t amd64_nbea_store(struct mem_ctl_info *mci, const char *data, + size_t count) +{ + struct amd64_pvt *pvt = mci->pvt_info; + unsigned long long value; + int ret = 0; + + ret = strict_strtoull(data, 16, &value); + if (ret != -EINVAL) { + debugf0("received NBEA= 0x%llx\n", value); + + /* place the value into the virtual error packet */ + pvt->ctl_error_info.nbeal = (u32) value; + value >>= 32; + pvt->ctl_error_info.nbeah = (u32) value; + + /* Process the Mapping request */ + /* TODO: Add race prevention */ + amd64_process_error_info(mci, &pvt->ctl_error_info, 1); + + return count; + } + return ret; +} + +/* display back what the last NBEA (MCA NB Address (MC4_ADDR)) was written */ +static ssize_t amd64_nbea_show(struct mem_ctl_info *mci, char *data) +{ + struct amd64_pvt *pvt = mci->pvt_info; + u64 value; + + value = pvt->ctl_error_info.nbeah; + value <<= 32; + value |= pvt->ctl_error_info.nbeal; + + return sprintf(data, "%llx\n", value); +} + +/* store the NBSL (MCA NB Status Low (MC4_STATUS)) value user desires */ +static ssize_t amd64_nbsl_store(struct mem_ctl_info *mci, const char *data, + size_t count) +{ + struct amd64_pvt *pvt = mci->pvt_info; + unsigned long value; + int ret = 0; + + ret = strict_strtoul(data, 16, &value); + if (ret != -EINVAL) { + debugf0("received NBSL= 0x%lx\n", value); + + pvt->ctl_error_info.nbsl = (u32) value; + + return count; + } + return ret; +} + +/* display back what the last NBSL value written */ +static ssize_t amd64_nbsl_show(struct mem_ctl_info *mci, char *data) +{ + struct amd64_pvt *pvt = mci->pvt_info; + u32 value; + + value = pvt->ctl_error_info.nbsl; + + return sprintf(data, "%x\n", value); +} + +/* store the NBSH (MCA NB Status High) value user desires */ +static ssize_t amd64_nbsh_store(struct mem_ctl_info *mci, const char *data, + size_t count) +{ + struct amd64_pvt *pvt = mci->pvt_info; + unsigned long value; + int ret = 0; + + ret = strict_strtoul(data, 16, &value); + if (ret != -EINVAL) { + debugf0("received NBSH= 0x%lx\n", value); + + pvt->ctl_error_info.nbsh = (u32) value; + + return count; + } + return ret; +} + +/* display back what the last NBSH value written */ +static ssize_t amd64_nbsh_show(struct mem_ctl_info *mci, char *data) +{ + struct amd64_pvt *pvt = mci->pvt_info; + u32 value; + + value = pvt->ctl_error_info.nbsh; + + return sprintf(data, "%x\n", value); +} + +/* accept and store the NBCFG (MCA NB Configuration) value user desires */ +static ssize_t amd64_nbcfg_store(struct mem_ctl_info *mci, + const char *data, size_t count) +{ + struct amd64_pvt *pvt = mci->pvt_info; + unsigned long value; + int ret = 0; + + ret = strict_strtoul(data, 16, &value); + if (ret != -EINVAL) { + debugf0("received NBCFG= 0x%lx\n", value); + + pvt->ctl_error_info.nbcfg = (u32) value; + + return count; + } + return ret; +} + +/* various show routines for the controls of a MCI */ +static ssize_t amd64_nbcfg_show(struct mem_ctl_info *mci, char *data) +{ + struct amd64_pvt *pvt = mci->pvt_info; + + return sprintf(data, "%x\n", pvt->ctl_error_info.nbcfg); +} + + +static ssize_t amd64_dhar_show(struct mem_ctl_info *mci, char *data) +{ + struct amd64_pvt *pvt = mci->pvt_info; + + return sprintf(data, "%x\n", pvt->dhar); +} + + +static ssize_t amd64_dbam_show(struct mem_ctl_info *mci, char *data) +{ + struct amd64_pvt *pvt = mci->pvt_info; + + return sprintf(data, "%x\n", pvt->dbam0); +} + + +static ssize_t amd64_topmem_show(struct mem_ctl_info *mci, char *data) +{ + struct amd64_pvt *pvt = mci->pvt_info; + + return sprintf(data, "%llx\n", pvt->top_mem); +} + + +static ssize_t amd64_topmem2_show(struct mem_ctl_info *mci, char *data) +{ + struct amd64_pvt *pvt = mci->pvt_info; + + return sprintf(data, "%llx\n", pvt->top_mem2); +} + +static ssize_t amd64_hole_show(struct mem_ctl_info *mci, char *data) +{ + u64 hole_base = 0; + u64 hole_offset = 0; + u64 hole_size = 0; + + amd64_get_dram_hole_info(mci, &hole_base, &hole_offset, &hole_size); + + return sprintf(data, "%llx %llx %llx\n", hole_base, hole_offset, + hole_size); +} + +/* + * update NUM_DBG_ATTRS in case you add new members + */ +struct mcidev_sysfs_attribute amd64_dbg_attrs[] = { + + { + .attr = { + .name = "nbea_ctl", + .mode = (S_IRUGO | S_IWUSR) + }, + .show = amd64_nbea_show, + .store = amd64_nbea_store, + }, + { + .attr = { + .name = "nbsl_ctl", + .mode = (S_IRUGO | S_IWUSR) + }, + .show = amd64_nbsl_show, + .store = amd64_nbsl_store, + }, + { + .attr = { + .name = "nbsh_ctl", + .mode = (S_IRUGO | S_IWUSR) + }, + .show = amd64_nbsh_show, + .store = amd64_nbsh_store, + }, + { + .attr = { + .name = "nbcfg_ctl", + .mode = (S_IRUGO | S_IWUSR) + }, + .show = amd64_nbcfg_show, + .store = amd64_nbcfg_store, + }, + { + .attr = { + .name = "dhar", + .mode = (S_IRUGO) + }, + .show = amd64_dhar_show, + .store = NULL, + }, + { + .attr = { + .name = "dbam", + .mode = (S_IRUGO) + }, + .show = amd64_dbam_show, + .store = NULL, + }, + { + .attr = { + .name = "topmem", + .mode = (S_IRUGO) + }, + .show = amd64_topmem_show, + .store = NULL, + }, + { + .attr = { + .name = "topmem2", + .mode = (S_IRUGO) + }, + .show = amd64_topmem2_show, + .store = NULL, + }, + { + .attr = { + .name = "dram_hole", + .mode = (S_IRUGO) + }, + .show = amd64_hole_show, + .store = NULL, + }, +}; diff --git a/drivers/edac/amd64_edac_err_types.c b/drivers/edac/amd64_edac_err_types.c new file mode 100644 index 00000000000..f212ff12a9d --- /dev/null +++ b/drivers/edac/amd64_edac_err_types.c @@ -0,0 +1,161 @@ +#include "amd64_edac.h" + +/* + * See F2x80 for K8 and F2x[1,0]80 for Fam10 and later. The table below is only + * for DDR2 DRAM mapping. + */ +u32 revf_quad_ddr2_shift[] = { + 0, /* 0000b NULL DIMM (128mb) */ + 28, /* 0001b 256mb */ + 29, /* 0010b 512mb */ + 29, /* 0011b 512mb */ + 29, /* 0100b 512mb */ + 30, /* 0101b 1gb */ + 30, /* 0110b 1gb */ + 31, /* 0111b 2gb */ + 31, /* 1000b 2gb */ + 32, /* 1001b 4gb */ + 32, /* 1010b 4gb */ + 33, /* 1011b 8gb */ + 0, /* 1100b future */ + 0, /* 1101b future */ + 0, /* 1110b future */ + 0 /* 1111b future */ +}; + +/* + * Valid scrub rates for the K8 hardware memory scrubber. We map the scrubbing + * bandwidth to a valid bit pattern. The 'set' operation finds the 'matching- + * or higher value'. + * + *FIXME: Produce a better mapping/linearisation. + */ + +struct scrubrate scrubrates[] = { + { 0x01, 1600000000UL}, + { 0x02, 800000000UL}, + { 0x03, 400000000UL}, + { 0x04, 200000000UL}, + { 0x05, 100000000UL}, + { 0x06, 50000000UL}, + { 0x07, 25000000UL}, + { 0x08, 12284069UL}, + { 0x09, 6274509UL}, + { 0x0A, 3121951UL}, + { 0x0B, 1560975UL}, + { 0x0C, 781440UL}, + { 0x0D, 390720UL}, + { 0x0E, 195300UL}, + { 0x0F, 97650UL}, + { 0x10, 48854UL}, + { 0x11, 24427UL}, + { 0x12, 12213UL}, + { 0x13, 6101UL}, + { 0x14, 3051UL}, + { 0x15, 1523UL}, + { 0x16, 761UL}, + { 0x00, 0UL}, /* scrubbing off */ +}; + +/* + * string representation for the different MCA reported error types, see F3x48 + * or MSR0000_0411. + */ +const char *tt_msgs[] = { /* transaction type */ + "instruction", + "data", + "generic", + "reserved" +}; + +const char *ll_msgs[] = { /* cache level */ + "L0", + "L1", + "L2", + "L3/generic" +}; + +const char *rrrr_msgs[] = { + "generic", + "generic read", + "generic write", + "data read", + "data write", + "inst fetch", + "prefetch", + "evict", + "snoop", + "reserved RRRR= 9", + "reserved RRRR= 10", + "reserved RRRR= 11", + "reserved RRRR= 12", + "reserved RRRR= 13", + "reserved RRRR= 14", + "reserved RRRR= 15" +}; + +const char *pp_msgs[] = { /* participating processor */ + "local node originated (SRC)", + "local node responded to request (RES)", + "local node observed as 3rd party (OBS)", + "generic" +}; + +const char *to_msgs[] = { + "no timeout", + "timed out" +}; + +const char *ii_msgs[] = { /* memory or i/o */ + "mem access", + "reserved", + "i/o access", + "generic" +}; + +/* Map the 5 bits of Extended Error code to the string table. */ +const char *ext_msgs[] = { /* extended error */ + "K8 ECC error/F10 reserved", /* 0_0000b */ + "CRC error", /* 0_0001b */ + "sync error", /* 0_0010b */ + "mst abort", /* 0_0011b */ + "tgt abort", /* 0_0100b */ + "GART error", /* 0_0101b */ + "RMW error", /* 0_0110b */ + "Wdog timer error", /* 0_0111b */ + "F10-ECC/K8-Chipkill error", /* 0_1000b */ + "DEV Error", /* 0_1001b */ + "Link Data error", /* 0_1010b */ + "Link or L3 Protocol error", /* 0_1011b */ + "NB Array error", /* 0_1100b */ + "DRAM Parity error", /* 0_1101b */ + "Link Retry/GART Table Walk/DEV Table Walk error", /* 0_1110b */ + "Res 0x0ff error", /* 0_1111b */ + "Res 0x100 error", /* 1_0000b */ + "Res 0x101 error", /* 1_0001b */ + "Res 0x102 error", /* 1_0010b */ + "Res 0x103 error", /* 1_0011b */ + "Res 0x104 error", /* 1_0100b */ + "Res 0x105 error", /* 1_0101b */ + "Res 0x106 error", /* 1_0110b */ + "Res 0x107 error", /* 1_0111b */ + "Res 0x108 error", /* 1_1000b */ + "Res 0x109 error", /* 1_1001b */ + "Res 0x10A error", /* 1_1010b */ + "Res 0x10B error", /* 1_1011b */ + "L3 Cache Data error", /* 1_1100b */ + "L3 CacheTag error", /* 1_1101b */ + "L3 Cache LRU error", /* 1_1110b */ + "Res 0x1FF error" /* 1_1111b */ +}; + +const char *htlink_msgs[] = { + "none", + "1", + "2", + "1 2", + "3", + "1 3", + "2 3", + "1 2 3" +}; diff --git a/drivers/edac/amd64_edac_inj.c b/drivers/edac/amd64_edac_inj.c new file mode 100644 index 00000000000..d3675b76b3a --- /dev/null +++ b/drivers/edac/amd64_edac_inj.c @@ -0,0 +1,185 @@ +#include "amd64_edac.h" + +/* + * store error injection section value which refers to one of 4 16-byte sections + * within a 64-byte cacheline + * + * range: 0..3 + */ +static ssize_t amd64_inject_section_store(struct mem_ctl_info *mci, + const char *data, size_t count) +{ + struct amd64_pvt *pvt = mci->pvt_info; + unsigned long value; + int ret = 0; + + ret = strict_strtoul(data, 10, &value); + if (ret != -EINVAL) { + pvt->injection.section = (u32) value; + return count; + } + return ret; +} + +/* + * store error injection word value which refers to one of 9 16-bit word of the + * 16-byte (128-bit + ECC bits) section + * + * range: 0..8 + */ +static ssize_t amd64_inject_word_store(struct mem_ctl_info *mci, + const char *data, size_t count) +{ + struct amd64_pvt *pvt = mci->pvt_info; + unsigned long value; + int ret = 0; + + ret = strict_strtoul(data, 10, &value); + if (ret != -EINVAL) { + + value = (value <= 8) ? value : 0; + pvt->injection.word = (u32) value; + + return count; + } + return ret; +} + +/* + * store 16 bit error injection vector which enables injecting errors to the + * corresponding bit within the error injection word above. When used during a + * DRAM ECC read, it holds the contents of the of the DRAM ECC bits. + */ +static ssize_t amd64_inject_ecc_vector_store(struct mem_ctl_info *mci, + const char *data, size_t count) +{ + struct amd64_pvt *pvt = mci->pvt_info; + unsigned long value; + int ret = 0; + + ret = strict_strtoul(data, 16, &value); + if (ret != -EINVAL) { + + pvt->injection.bit_map = (u32) value & 0xFFFF; + + return count; + } + return ret; +} + +/* + * Do a DRAM ECC read. Assemble staged values in the pvt area, format into + * fields needed by the injection registers and read the NB Array Data Port. + */ +static ssize_t amd64_inject_read_store(struct mem_ctl_info *mci, + const char *data, size_t count) +{ + struct amd64_pvt *pvt = mci->pvt_info; + unsigned long value; + u32 section, word_bits; + int ret = 0; + + ret = strict_strtoul(data, 10, &value); + if (ret != -EINVAL) { + + /* Form value to choose 16-byte section of cacheline */ + section = F10_NB_ARRAY_DRAM_ECC | + SET_NB_ARRAY_ADDRESS(pvt->injection.section); + pci_write_config_dword(pvt->misc_f3_ctl, + F10_NB_ARRAY_ADDR, section); + + word_bits = SET_NB_DRAM_INJECTION_READ(pvt->injection.word, + pvt->injection.bit_map); + + /* Issue 'word' and 'bit' along with the READ request */ + pci_write_config_dword(pvt->misc_f3_ctl, + F10_NB_ARRAY_DATA, word_bits); + + debugf0("section=0x%x word_bits=0x%x\n", section, word_bits); + + return count; + } + return ret; +} + +/* + * Do a DRAM ECC write. Assemble staged values in the pvt area and format into + * fields needed by the injection registers. + */ +static ssize_t amd64_inject_write_store(struct mem_ctl_info *mci, + const char *data, size_t count) +{ + struct amd64_pvt *pvt = mci->pvt_info; + unsigned long value; + u32 section, word_bits; + int ret = 0; + + ret = strict_strtoul(data, 10, &value); + if (ret != -EINVAL) { + + /* Form value to choose 16-byte section of cacheline */ + section = F10_NB_ARRAY_DRAM_ECC | + SET_NB_ARRAY_ADDRESS(pvt->injection.section); + pci_write_config_dword(pvt->misc_f3_ctl, + F10_NB_ARRAY_ADDR, section); + + word_bits = SET_NB_DRAM_INJECTION_WRITE(pvt->injection.word, + pvt->injection.bit_map); + + /* Issue 'word' and 'bit' along with the READ request */ + pci_write_config_dword(pvt->misc_f3_ctl, + F10_NB_ARRAY_DATA, word_bits); + + debugf0("section=0x%x word_bits=0x%x\n", section, word_bits); + + return count; + } + return ret; +} + +/* + * update NUM_INJ_ATTRS in case you add new members + */ +struct mcidev_sysfs_attribute amd64_inj_attrs[] = { + + { + .attr = { + .name = "inject_section", + .mode = (S_IRUGO | S_IWUSR) + }, + .show = NULL, + .store = amd64_inject_section_store, + }, + { + .attr = { + .name = "inject_word", + .mode = (S_IRUGO | S_IWUSR) + }, + .show = NULL, + .store = amd64_inject_word_store, + }, + { + .attr = { + .name = "inject_ecc_vector", + .mode = (S_IRUGO | S_IWUSR) + }, + .show = NULL, + .store = amd64_inject_ecc_vector_store, + }, + { + .attr = { + .name = "inject_write", + .mode = (S_IRUGO | S_IWUSR) + }, + .show = NULL, + .store = amd64_inject_write_store, + }, + { + .attr = { + .name = "inject_read", + .mode = (S_IRUGO | S_IWUSR) + }, + .show = NULL, + .store = amd64_inject_read_store, + }, +}; diff --git a/drivers/edac/edac_core.h b/drivers/edac/edac_core.h index 6ad95c8d636..48d3b140983 100644 --- a/drivers/edac/edac_core.h +++ b/drivers/edac/edac_core.h @@ -76,10 +76,11 @@ extern int edac_debug_level; #ifndef CONFIG_EDAC_DEBUG_VERBOSE -#define edac_debug_printk(level, fmt, arg...) \ - do { \ - if (level <= edac_debug_level) \ - edac_printk(KERN_DEBUG, EDAC_DEBUG, fmt, ##arg); \ +#define edac_debug_printk(level, fmt, arg...) \ + do { \ + if (level <= edac_debug_level) \ + edac_printk(KERN_DEBUG, EDAC_DEBUG, \ + "%s: " fmt, __func__, ##arg); \ } while (0) #else /* CONFIG_EDAC_DEBUG_VERBOSE */ #define edac_debug_printk(level, fmt, arg...) \ diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index 5f1b5400d96..24c84ae8152 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -596,6 +596,7 @@ int dmi_get_year(int field) return year; } +EXPORT_SYMBOL(dmi_get_year); /** * dmi_walk - Walk the DMI table and get called back for every record diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 94a76887173..8fab7890a36 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -2294,7 +2294,12 @@ int drm_mode_connector_property_set_ioctl(struct drm_device *dev, } } - if (connector->funcs->set_property) + /* Do DPMS ourselves */ + if (property == connector->dev->mode_config.dpms_property) { + if (connector->funcs->dpms) + (*connector->funcs->dpms)(connector, (int) out_resp->value); + ret = 0; + } else if (connector->funcs->set_property) ret = connector->funcs->set_property(connector, property, out_resp->value); /* store the property value if succesful */ diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index 45890447fee..a6f73f1e99d 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -199,6 +199,29 @@ static void drm_helper_add_std_modes(struct drm_device *dev, } /** + * drm_helper_encoder_in_use - check if a given encoder is in use + * @encoder: encoder to check + * + * LOCKING: + * Caller must hold mode config lock. + * + * Walk @encoders's DRM device's mode_config and see if it's in use. + * + * RETURNS: + * True if @encoder is part of the mode_config, false otherwise. + */ +bool drm_helper_encoder_in_use(struct drm_encoder *encoder) +{ + struct drm_connector *connector; + struct drm_device *dev = encoder->dev; + list_for_each_entry(connector, &dev->mode_config.connector_list, head) + if (connector->encoder == encoder) + return true; + return false; +} +EXPORT_SYMBOL(drm_helper_encoder_in_use); + +/** * drm_helper_crtc_in_use - check if a given CRTC is in a mode_config * @crtc: CRTC to check * @@ -216,7 +239,7 @@ bool drm_helper_crtc_in_use(struct drm_crtc *crtc) struct drm_device *dev = crtc->dev; /* FIXME: Locking around list access? */ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) - if (encoder->crtc == crtc) + if (encoder->crtc == crtc && drm_helper_encoder_in_use(encoder)) return true; return false; } @@ -240,7 +263,7 @@ void drm_helper_disable_unused_functions(struct drm_device *dev) list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { encoder_funcs = encoder->helper_private; - if (!encoder->crtc) + if (!drm_helper_encoder_in_use(encoder)) (*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF); } @@ -935,6 +958,88 @@ bool drm_helper_initial_config(struct drm_device *dev) } EXPORT_SYMBOL(drm_helper_initial_config); +static int drm_helper_choose_encoder_dpms(struct drm_encoder *encoder) +{ + int dpms = DRM_MODE_DPMS_OFF; + struct drm_connector *connector; + struct drm_device *dev = encoder->dev; + + list_for_each_entry(connector, &dev->mode_config.connector_list, head) + if (connector->encoder == encoder) + if (connector->dpms < dpms) + dpms = connector->dpms; + return dpms; +} + +static int drm_helper_choose_crtc_dpms(struct drm_crtc *crtc) +{ + int dpms = DRM_MODE_DPMS_OFF; + struct drm_connector *connector; + struct drm_device *dev = crtc->dev; + + list_for_each_entry(connector, &dev->mode_config.connector_list, head) + if (connector->encoder && connector->encoder->crtc == crtc) + if (connector->dpms < dpms) + dpms = connector->dpms; + return dpms; +} + +/** + * drm_helper_connector_dpms + * @connector affected connector + * @mode DPMS mode + * + * Calls the low-level connector DPMS function, then + * calls appropriate encoder and crtc DPMS functions as well + */ +void drm_helper_connector_dpms(struct drm_connector *connector, int mode) +{ + struct drm_encoder *encoder = connector->encoder; + struct drm_crtc *crtc = encoder ? encoder->crtc : NULL; + int old_dpms; + + if (mode == connector->dpms) + return; + + old_dpms = connector->dpms; + connector->dpms = mode; + + /* from off to on, do crtc then encoder */ + if (mode < old_dpms) { + if (crtc) { + struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; + if (crtc_funcs->dpms) + (*crtc_funcs->dpms) (crtc, + drm_helper_choose_crtc_dpms(crtc)); + } + if (encoder) { + struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; + if (encoder_funcs->dpms) + (*encoder_funcs->dpms) (encoder, + drm_helper_choose_encoder_dpms(encoder)); + } + } + + /* from on to off, do encoder then crtc */ + if (mode > old_dpms) { + if (encoder) { + struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; + if (encoder_funcs->dpms) + (*encoder_funcs->dpms) (encoder, + drm_helper_choose_encoder_dpms(encoder)); + } + if (crtc) { + struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; + if (crtc_funcs->dpms) + (*crtc_funcs->dpms) (crtc, + drm_helper_choose_crtc_dpms(crtc)); + } + } + + return; +} +EXPORT_SYMBOL(drm_helper_connector_dpms); + /** * drm_hotplug_stage_two * @dev DRM device diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index ca9c6165671..6f6b26479d8 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -289,6 +289,11 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev, struct drm_display_mode *mode; struct detailed_pixel_timing *pt = &timing->data.pixel_data; + /* ignore tiny modes */ + if (((pt->hactive_hi << 8) | pt->hactive_lo) < 64 || + ((pt->vactive_hi << 8) | pt->hactive_lo) < 64) + return NULL; + if (pt->stereo) { printk(KERN_WARNING "stereo mode not supported\n"); return NULL; diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 93e677a481f..fc8e5acd9d9 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -196,6 +196,7 @@ int drm_irq_install(struct drm_device *dev) { int ret = 0; unsigned long sh_flags = 0; + char *irqname; if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ)) return -EINVAL; @@ -227,8 +228,13 @@ int drm_irq_install(struct drm_device *dev) if (drm_core_check_feature(dev, DRIVER_IRQ_SHARED)) sh_flags = IRQF_SHARED; + if (dev->devname) + irqname = dev->devname; + else + irqname = dev->driver->name; + ret = request_irq(drm_dev_to_irq(dev), dev->driver->irq_handler, - sh_flags, dev->devname, dev); + sh_flags, irqname, dev); if (ret < 0) { mutex_lock(&dev->struct_mutex); diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c index 8f9372921f8..9987ab88083 100644 --- a/drivers/gpu/drm/drm_sysfs.c +++ b/drivers/gpu/drm/drm_sysfs.c @@ -147,7 +147,7 @@ static ssize_t status_show(struct device *device, enum drm_connector_status status; status = connector->funcs->detect(connector); - return snprintf(buf, PAGE_SIZE, "%s", + return snprintf(buf, PAGE_SIZE, "%s\n", drm_get_connector_status_name(status)); } @@ -166,7 +166,7 @@ static ssize_t dpms_show(struct device *device, if (ret) return 0; - return snprintf(buf, PAGE_SIZE, "%s", + return snprintf(buf, PAGE_SIZE, "%s\n", drm_get_dpms_name((int)dpms_status)); } @@ -176,7 +176,7 @@ static ssize_t enabled_show(struct device *device, { struct drm_connector *connector = to_drm_connector(device); - return snprintf(buf, PAGE_SIZE, connector->encoder ? "enabled" : + return snprintf(buf, PAGE_SIZE, "%s\n", connector->encoder ? "enabled" : "disabled"); } @@ -317,6 +317,7 @@ static struct device_attribute connector_attrs_opt1[] = { static struct bin_attribute edid_attr = { .attr.name = "edid", + .attr.mode = 0444, .size = 128, .read = edid_show, }; diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 53d54455262..0ccb63ee50e 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -987,12 +987,6 @@ static int i915_load_modeset_init(struct drm_device *dev) int fb_bar = IS_I9XX(dev) ? 2 : 0; int ret = 0; - dev->devname = kstrdup(DRIVER_NAME, GFP_KERNEL); - if (!dev->devname) { - ret = -ENOMEM; - goto out; - } - dev->mode_config.fb_base = drm_get_resource_start(dev, fb_bar) & 0xff000000; @@ -1006,7 +1000,7 @@ static int i915_load_modeset_init(struct drm_device *dev) ret = i915_probe_agp(dev, &agp_size, &prealloc_size); if (ret) - goto kfree_devname; + goto out; /* Basic memrange allocator for stolen space (aka vram) */ drm_mm_init(&dev_priv->vram, 0, prealloc_size); @@ -1024,7 +1018,7 @@ static int i915_load_modeset_init(struct drm_device *dev) ret = i915_gem_init_ringbuffer(dev); if (ret) - goto kfree_devname; + goto out; /* Allow hardware batchbuffers unless told otherwise. */ @@ -1056,8 +1050,6 @@ static int i915_load_modeset_init(struct drm_device *dev) destroy_ringbuffer: i915_gem_cleanup_ringbuffer(dev); -kfree_devname: - kfree(dev->devname); out: return ret; } diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 670d1288146..39f5c658ef5 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -2260,9 +2260,6 @@ try_again: goto try_again; } - BUG_ON(old_obj_priv->active || - (reg->obj->write_domain & I915_GEM_GPU_DOMAINS)); - /* * Zap this virtual mapping so we can set up a fence again * for this object next time we need it. diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index 640f5158eff..79acc4f4c1f 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -381,11 +381,6 @@ static int intel_crt_set_property(struct drm_connector *connector, struct drm_property *property, uint64_t value) { - struct drm_device *dev = connector->dev; - - if (property == dev->mode_config.dpms_property && connector->encoder) - intel_crt_dpms(connector->encoder, (uint32_t)(value & 0xf)); - return 0; } @@ -402,6 +397,7 @@ static const struct drm_encoder_helper_funcs intel_crt_helper_funcs = { }; static const struct drm_connector_funcs intel_crt_connector_funcs = { + .dpms = drm_helper_connector_dpms, .detect = intel_crt_detect, .fill_modes = drm_helper_probe_single_connector_modes, .destroy = intel_crt_destroy, diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c index 8b8d6e65cd3..1ee3007d6ec 100644 --- a/drivers/gpu/drm/i915/intel_dvo.c +++ b/drivers/gpu/drm/i915/intel_dvo.c @@ -316,6 +316,7 @@ static const struct drm_encoder_helper_funcs intel_dvo_helper_funcs = { }; static const struct drm_connector_funcs intel_dvo_connector_funcs = { + .dpms = drm_helper_connector_dpms, .save = intel_dvo_save, .restore = intel_dvo_restore, .detect = intel_dvo_detect, diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index d0983bb93a1..7d6bdd70532 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -219,6 +219,7 @@ static const struct drm_encoder_helper_funcs intel_hdmi_helper_funcs = { }; static const struct drm_connector_funcs intel_hdmi_connector_funcs = { + .dpms = drm_helper_connector_dpms, .save = intel_hdmi_save, .restore = intel_hdmi_restore, .detect = intel_hdmi_detect, diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 53731f0ffcb..53cccfa58b9 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -343,11 +343,6 @@ static int intel_lvds_set_property(struct drm_connector *connector, struct drm_property *property, uint64_t value) { - struct drm_device *dev = connector->dev; - - if (property == dev->mode_config.dpms_property && connector->encoder) - intel_lvds_dpms(connector->encoder, (uint32_t)(value & 0xf)); - return 0; } @@ -366,6 +361,7 @@ static const struct drm_connector_helper_funcs intel_lvds_connector_helper_funcs }; static const struct drm_connector_funcs intel_lvds_connector_funcs = { + .dpms = drm_helper_connector_dpms, .save = intel_lvds_save, .restore = intel_lvds_restore, .detect = intel_lvds_detect, @@ -391,7 +387,7 @@ static int __init intel_no_lvds_dmi_callback(const struct dmi_system_id *id) } /* These systems claim to have LVDS, but really don't */ -static const struct dmi_system_id __initdata intel_no_lvds[] = { +static const struct dmi_system_id intel_no_lvds[] = { { .callback = intel_no_lvds_dmi_callback, .ident = "Apple Mac Mini (Core series)", diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index f3ef6bfd8ff..3093b4d4a4d 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -1616,6 +1616,7 @@ static const struct drm_encoder_helper_funcs intel_sdvo_helper_funcs = { }; static const struct drm_connector_funcs intel_sdvo_connector_funcs = { + .dpms = drm_helper_connector_dpms, .save = intel_sdvo_save, .restore = intel_sdvo_restore, .detect = intel_sdvo_detect, diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c index d2c32983242..98ac0546b7b 100644 --- a/drivers/gpu/drm/i915/intel_tv.c +++ b/drivers/gpu/drm/i915/intel_tv.c @@ -1626,6 +1626,7 @@ static const struct drm_encoder_helper_funcs intel_tv_helper_funcs = { }; static const struct drm_connector_funcs intel_tv_connector_funcs = { + .dpms = drm_helper_connector_dpms, .save = intel_tv_save, .restore = intel_tv_restore, .detect = intel_tv_detect, diff --git a/drivers/gpu/drm/radeon/radeon_cp.c b/drivers/gpu/drm/radeon/radeon_cp.c index 77a7a4d8465..aff90bb9648 100644 --- a/drivers/gpu/drm/radeon/radeon_cp.c +++ b/drivers/gpu/drm/radeon/radeon_cp.c @@ -2185,9 +2185,9 @@ void radeon_commit_ring(drm_radeon_private_t *dev_priv) /* check if the ring is padded out to 16-dword alignment */ - tail_aligned = dev_priv->ring.tail & 0xf; + tail_aligned = dev_priv->ring.tail & (RADEON_RING_ALIGN-1); if (tail_aligned) { - int num_p2 = 16 - tail_aligned; + int num_p2 = RADEON_RING_ALIGN - tail_aligned; ring = dev_priv->ring.start; /* pad with some CP_PACKET2 */ diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h index 8071d965f14..0c6bfc1de15 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.h +++ b/drivers/gpu/drm/radeon/radeon_drv.h @@ -1964,11 +1964,14 @@ do { \ #define RING_LOCALS int write, _nr, _align_nr; unsigned int mask; u32 *ring; +#define RADEON_RING_ALIGN 16 + #define BEGIN_RING( n ) do { \ if ( RADEON_VERBOSE ) { \ DRM_INFO( "BEGIN_RING( %d )\n", (n)); \ } \ - _align_nr = (n + 0xf) & ~0xf; \ + _align_nr = RADEON_RING_ALIGN - ((dev_priv->ring.tail + n) & (RADEON_RING_ALIGN-1)); \ + _align_nr += n; \ if (dev_priv->ring.space <= (_align_nr * sizeof(u32))) { \ COMMIT_RING(); \ radeon_wait_ring( dev_priv, _align_nr * sizeof(u32)); \ diff --git a/drivers/i2c/busses/i2c-sh7760.c b/drivers/i2c/busses/i2c-sh7760.c index baa28b73ae4..b9680f50f54 100644 --- a/drivers/i2c/busses/i2c-sh7760.c +++ b/drivers/i2c/busses/i2c-sh7760.c @@ -396,7 +396,7 @@ static int __devinit calc_CCR(unsigned long scl_hz) signed char cdf, cdfm; int scgd, scgdm, scgds; - mclk = clk_get(NULL, "module_clk"); + mclk = clk_get(NULL, "peripheral_clk"); if (IS_ERR(mclk)) { return PTR_ERR(mclk); } else { diff --git a/drivers/ide/alim15x3.c b/drivers/ide/alim15x3.c index 537da1cde16..e59b6dee9ae 100644 --- a/drivers/ide/alim15x3.c +++ b/drivers/ide/alim15x3.c @@ -402,27 +402,23 @@ static u8 ali_cable_detect(ide_hwif_t *hwif) return cbl; } -#if !defined(CONFIG_SPARC64) && !defined(CONFIG_PPC) +#ifndef CONFIG_SPARC64 /** * init_hwif_ali15x3 - Initialize the ALI IDE x86 stuff * @hwif: interface to configure * * Obtain the IRQ tables for an ALi based IDE solution on the PC * class platforms. This part of the code isn't applicable to the - * Sparc and PowerPC systems. + * Sparc systems. */ static void __devinit init_hwif_ali15x3 (ide_hwif_t *hwif) { - struct pci_dev *dev = to_pci_dev(hwif->dev); u8 ideic, inmir; s8 irq_routing_table[] = { -1, 9, 3, 10, 4, 5, 7, 6, 1, 11, 0, 12, 0, 14, 0, 15 }; int irq = -1; - if (dev->device == PCI_DEVICE_ID_AL_M5229) - hwif->irq = hwif->channel ? 15 : 14; - if (isa_dev) { /* * read IDE interface control @@ -455,7 +451,7 @@ static void __devinit init_hwif_ali15x3 (ide_hwif_t *hwif) } #else #define init_hwif_ali15x3 NULL -#endif /* !defined(CONFIG_SPARC64) && !defined(CONFIG_PPC) */ +#endif /* CONFIG_SPARC64 */ /** * init_dma_ali15x3 - set up DMA on ALi15x3 diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index 7201b176d75..757e5956b13 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -80,34 +80,6 @@ void ide_init_pc(struct ide_atapi_pc *pc) EXPORT_SYMBOL_GPL(ide_init_pc); /* - * Generate a new packet command request in front of the request queue, before - * the current request, so that it will be processed immediately, on the next - * pass through the driver. - */ -static void ide_queue_pc_head(ide_drive_t *drive, struct gendisk *disk, - struct ide_atapi_pc *pc, struct request *rq) -{ - blk_rq_init(NULL, rq); - rq->cmd_type = REQ_TYPE_SPECIAL; - rq->cmd_flags |= REQ_PREEMPT; - rq->buffer = (char *)pc; - rq->rq_disk = disk; - - if (pc->req_xfer) { - rq->data = pc->buf; - rq->data_len = pc->req_xfer; - } - - memcpy(rq->cmd, pc->c, 12); - if (drive->media == ide_tape) - rq->cmd[13] = REQ_IDETAPE_PC1; - - drive->hwif->rq = NULL; - - elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 0); -} - -/* * Add a special packet command request to the tail of the request queue, * and wait for it to be serviced. */ @@ -119,19 +91,21 @@ int ide_queue_pc_tail(ide_drive_t *drive, struct gendisk *disk, rq = blk_get_request(drive->queue, READ, __GFP_WAIT); rq->cmd_type = REQ_TYPE_SPECIAL; - rq->buffer = (char *)pc; + rq->special = (char *)pc; if (pc->req_xfer) { - rq->data = pc->buf; - rq->data_len = pc->req_xfer; + error = blk_rq_map_kern(drive->queue, rq, pc->buf, pc->req_xfer, + GFP_NOIO); + if (error) + goto put_req; } memcpy(rq->cmd, pc->c, 12); if (drive->media == ide_tape) rq->cmd[13] = REQ_IDETAPE_PC1; error = blk_execute_rq(drive->queue, disk, rq, 0); +put_req: blk_put_request(rq); - return error; } EXPORT_SYMBOL_GPL(ide_queue_pc_tail); @@ -191,20 +165,113 @@ void ide_create_request_sense_cmd(ide_drive_t *drive, struct ide_atapi_pc *pc) } EXPORT_SYMBOL_GPL(ide_create_request_sense_cmd); +void ide_prep_sense(ide_drive_t *drive, struct request *rq) +{ + struct request_sense *sense = &drive->sense_data; + struct request *sense_rq = &drive->sense_rq; + unsigned int cmd_len, sense_len; + int err; + + debug_log("%s: enter\n", __func__); + + switch (drive->media) { + case ide_floppy: + cmd_len = 255; + sense_len = 18; + break; + case ide_tape: + cmd_len = 20; + sense_len = 20; + break; + default: + cmd_len = 18; + sense_len = 18; + } + + BUG_ON(sense_len > sizeof(*sense)); + + if (blk_sense_request(rq) || drive->sense_rq_armed) + return; + + memset(sense, 0, sizeof(*sense)); + + blk_rq_init(rq->q, sense_rq); + + err = blk_rq_map_kern(drive->queue, sense_rq, sense, sense_len, + GFP_NOIO); + if (unlikely(err)) { + if (printk_ratelimit()) + printk(KERN_WARNING "%s: failed to map sense buffer\n", + drive->name); + return; + } + + sense_rq->rq_disk = rq->rq_disk; + sense_rq->cmd[0] = GPCMD_REQUEST_SENSE; + sense_rq->cmd[4] = cmd_len; + sense_rq->cmd_type = REQ_TYPE_SENSE; + sense_rq->cmd_flags |= REQ_PREEMPT; + + if (drive->media == ide_tape) + sense_rq->cmd[13] = REQ_IDETAPE_PC1; + + drive->sense_rq_armed = true; +} +EXPORT_SYMBOL_GPL(ide_prep_sense); + +int ide_queue_sense_rq(ide_drive_t *drive, void *special) +{ + /* deferred failure from ide_prep_sense() */ + if (!drive->sense_rq_armed) { + printk(KERN_WARNING "%s: failed queue sense request\n", + drive->name); + return -ENOMEM; + } + + drive->sense_rq.special = special; + drive->sense_rq_armed = false; + + drive->hwif->rq = NULL; + + elv_add_request(drive->queue, &drive->sense_rq, + ELEVATOR_INSERT_FRONT, 0); + return 0; +} +EXPORT_SYMBOL_GPL(ide_queue_sense_rq); + /* * Called when an error was detected during the last packet command. - * We queue a request sense packet command in the head of the request list. + * We queue a request sense packet command at the head of the request + * queue. */ -void ide_retry_pc(ide_drive_t *drive, struct gendisk *disk) +void ide_retry_pc(ide_drive_t *drive) { - struct request *rq = &drive->request_sense_rq; + struct request *failed_rq = drive->hwif->rq; + struct request *sense_rq = &drive->sense_rq; struct ide_atapi_pc *pc = &drive->request_sense_pc; (void)ide_read_error(drive); - ide_create_request_sense_cmd(drive, pc); + + /* init pc from sense_rq */ + ide_init_pc(pc); + memcpy(pc->c, sense_rq->cmd, 12); + pc->buf = bio_data(sense_rq->bio); /* pointer to mapped address */ + pc->req_xfer = blk_rq_bytes(sense_rq); + if (drive->media == ide_tape) set_bit(IDE_AFLAG_IGNORE_DSC, &drive->atapi_flags); - ide_queue_pc_head(drive, disk, pc, rq); + + /* + * Push back the failed request and put request sense on top + * of it. The failed command will be retried after sense data + * is acquired. + */ + blk_requeue_request(failed_rq->q, failed_rq); + drive->hwif->rq = NULL; + if (ide_queue_sense_rq(drive, pc)) { + blk_start_request(failed_rq); + ide_complete_rq(drive, -EIO, blk_rq_bytes(failed_rq)); + } } EXPORT_SYMBOL_GPL(ide_retry_pc); @@ -246,7 +313,7 @@ int ide_cd_get_xferlen(struct request *rq) return 32768; else if (blk_sense_request(rq) || blk_pc_request(rq) || rq->cmd_type == REQ_TYPE_ATA_PC) - return rq->data_len; + return blk_rq_bytes(rq); else return 0; } @@ -276,7 +343,6 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive) struct ide_cmd *cmd = &hwif->cmd; struct request *rq = hwif->rq; const struct ide_tp_ops *tp_ops = hwif->tp_ops; - xfer_func_t *xferfunc; unsigned int timeout, done; u16 bcount; u8 stat, ireason, dsc = 0; @@ -303,18 +369,14 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive) drive->name, rq_data_dir(pc->rq) ? "write" : "read"); pc->flags |= PC_FLAG_DMA_ERROR; - } else { + } else pc->xferred = pc->req_xfer; - if (drive->pc_update_buffers) - drive->pc_update_buffers(drive, pc); - } debug_log("%s: DMA finished\n", drive->name); } /* No more interrupts */ if ((stat & ATA_DRQ) == 0) { int uptodate, error; - unsigned int done; debug_log("Packet command completed, %d bytes transferred\n", pc->xferred); @@ -343,7 +405,7 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive) debug_log("[cmd %x]: check condition\n", rq->cmd[0]); /* Retry operation */ - ide_retry_pc(drive, rq->rq_disk); + ide_retry_pc(drive); /* queued, but not started */ return ide_stopped; @@ -353,6 +415,12 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive) if ((pc->flags & PC_FLAG_WAIT_FOR_DSC) && (stat & ATA_DSC) == 0) dsc = 1; + /* + * ->pc_callback() might change rq->data_len for + * residual count, cache total length. + */ + done = blk_rq_bytes(rq); + /* Command finished - Call the callback function */ uptodate = drive->pc_callback(drive, dsc); @@ -361,7 +429,6 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive) if (blk_special_request(rq)) { rq->errors = 0; - done = blk_rq_bytes(rq); error = 0; } else { @@ -370,15 +437,10 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive) rq->errors = -EIO; } - if (drive->media == ide_tape) - done = ide_rq_bytes(rq); /* FIXME */ - else - done = blk_rq_bytes(rq); - error = uptodate ? 0 : -EIO; } - ide_complete_rq(drive, error, done); + ide_complete_rq(drive, error, blk_rq_bytes(rq)); return ide_stopped; } @@ -407,21 +469,11 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive) return ide_do_reset(drive); } - xferfunc = write ? tp_ops->output_data : tp_ops->input_data; - - if (drive->media == ide_floppy && pc->buf == NULL) { - done = min_t(unsigned int, bcount, cmd->nleft); - ide_pio_bytes(drive, cmd, write, done); - } else if (drive->media == ide_tape && pc->bh) { - done = drive->pc_io_buffers(drive, pc, bcount, write); - } else { - done = min_t(unsigned int, bcount, pc->req_xfer - pc->xferred); - xferfunc(drive, NULL, pc->cur_pos, done); - } + done = min_t(unsigned int, bcount, cmd->nleft); + ide_pio_bytes(drive, cmd, write, done); - /* Update the current position */ + /* Update transferred byte count */ pc->xferred += done; - pc->cur_pos += done; bcount -= done; @@ -599,7 +651,6 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_cmd *cmd) /* We haven't transferred any data yet */ pc->xferred = 0; - pc->cur_pos = pc->buf; valid_tf = IDE_VALID_DEVICE; bcount = ((drive->media == ide_tape) ? diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 925eb9e245d..424140c6c40 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -182,7 +182,7 @@ static void cdrom_analyze_sense_data(ide_drive_t *drive, (sense->information[2] << 8) | (sense->information[3]); - if (drive->queue->hardsect_size == 2048) + if (queue_logical_block_size(drive->queue) == 2048) /* device sector size is 2K */ sector <<= 2; @@ -206,54 +206,25 @@ static void cdrom_analyze_sense_data(ide_drive_t *drive, ide_cd_log_error(drive->name, failed_command, sense); } -static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense, - struct request *failed_command) -{ - struct cdrom_info *info = drive->driver_data; - struct request *rq = &drive->request_sense_rq; - - ide_debug_log(IDE_DBG_SENSE, "enter"); - - if (sense == NULL) - sense = &info->sense_data; - - /* stuff the sense request in front of our current request */ - blk_rq_init(NULL, rq); - rq->cmd_type = REQ_TYPE_ATA_PC; - rq->rq_disk = info->disk; - - rq->data = sense; - rq->cmd[0] = GPCMD_REQUEST_SENSE; - rq->cmd[4] = 18; - rq->data_len = 18; - - rq->cmd_type = REQ_TYPE_SENSE; - rq->cmd_flags |= REQ_PREEMPT; - - /* NOTE! Save the failed command in "rq->buffer" */ - rq->buffer = (void *) failed_command; - - if (failed_command) - ide_debug_log(IDE_DBG_SENSE, "failed_cmd: 0x%x", - failed_command->cmd[0]); - - drive->hwif->rq = NULL; - - elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 0); -} - static void ide_cd_complete_failed_rq(ide_drive_t *drive, struct request *rq) { /* - * For REQ_TYPE_SENSE, "rq->buffer" points to the original - * failed request + * For REQ_TYPE_SENSE, "rq->special" points to the original + * failed request. Also, the sense data should be read + * directly from rq which might be different from the original + * sense buffer if it got copied during mapping. */ - struct request *failed = (struct request *)rq->buffer; - struct cdrom_info *info = drive->driver_data; - void *sense = &info->sense_data; + struct request *failed = (struct request *)rq->special; + void *sense = bio_data(rq->bio); if (failed) { if (failed->sense) { + /* + * Sense is always read into drive->sense_data. + * Copy back if the failed request has its + * sense pointer set. + */ + memcpy(failed->sense, sense, 18); sense = failed->sense; failed->sense_len = rq->sense_len; } @@ -428,22 +399,13 @@ static int cdrom_decode_status(ide_drive_t *drive, u8 stat) /* if we got a CHECK_CONDITION status, queue a request sense command */ if (stat & ATA_ERR) - cdrom_queue_request_sense(drive, NULL, NULL); + return ide_queue_sense_rq(drive, NULL) ? 2 : 1; return 1; end_request: if (stat & ATA_ERR) { - struct request_queue *q = drive->queue; - unsigned long flags; - - spin_lock_irqsave(q->queue_lock, flags); - blkdev_dequeue_request(rq); - spin_unlock_irqrestore(q->queue_lock, flags); - hwif->rq = NULL; - - cdrom_queue_request_sense(drive, rq->sense, rq); - return 1; + return ide_queue_sense_rq(drive, rq) ? 2 : 1; } else return 2; } @@ -503,14 +465,8 @@ static void ide_cd_request_sense_fixup(ide_drive_t *drive, struct ide_cmd *cmd) * and some drives don't send them. Sigh. */ if (rq->cmd[0] == GPCMD_REQUEST_SENSE && - cmd->nleft > 0 && cmd->nleft <= 5) { - unsigned int ofs = cmd->nbytes - cmd->nleft; - - while (cmd->nleft > 0) { - *((u8 *)rq->data + ofs++) = 0; - cmd->nleft--; - } - } + cmd->nleft > 0 && cmd->nleft <= 5) + cmd->nleft = 0; } int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, @@ -543,14 +499,18 @@ int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, rq->cmd_flags |= cmd_flags; rq->timeout = timeout; if (buffer) { - rq->data = buffer; - rq->data_len = *bufflen; + error = blk_rq_map_kern(drive->queue, rq, buffer, + *bufflen, GFP_NOIO); + if (error) { + blk_put_request(rq); + return error; + } } error = blk_execute_rq(drive->queue, info->disk, rq, 0); if (buffer) - *bufflen = rq->data_len; + *bufflen = rq->resid_len; flags = rq->cmd_flags; blk_put_request(rq); @@ -608,7 +568,7 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) struct request *rq = hwif->rq; ide_expiry_t *expiry = NULL; int dma_error = 0, dma, thislen, uptodate = 0; - int write = (rq_data_dir(rq) == WRITE) ? 1 : 0, rc = 0, nsectors; + int write = (rq_data_dir(rq) == WRITE) ? 1 : 0, rc = 0; int sense = blk_sense_request(rq); unsigned int timeout; u16 len; @@ -738,13 +698,8 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) out_end: if (blk_pc_request(rq) && rc == 0) { - unsigned int dlen = rq->data_len; - - rq->data_len = 0; - - if (blk_end_request(rq, 0, dlen)) - BUG(); - + rq->resid_len = 0; + blk_end_request_all(rq, 0); hwif->rq = NULL; } else { if (sense && uptodate) @@ -762,21 +717,13 @@ out_end: ide_cd_error_cmd(drive, cmd); /* make sure it's fully ended */ - if (blk_pc_request(rq)) - nsectors = (rq->data_len + 511) >> 9; - else - nsectors = rq->hard_nr_sectors; - - if (nsectors == 0) - nsectors = 1; - if (blk_fs_request(rq) == 0) { - rq->data_len -= (cmd->nbytes - cmd->nleft); + rq->resid_len -= cmd->nbytes - cmd->nleft; if (uptodate == 0 && (cmd->tf_flags & IDE_TFLAG_WRITE)) - rq->data_len += cmd->last_xfer_len; + rq->resid_len += cmd->last_xfer_len; } - ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9); + ide_complete_rq(drive, uptodate ? 0 : -EIO, blk_rq_bytes(rq)); if (sense && rc == 2) ide_error(drive, "request sense failure", stat); @@ -790,7 +737,7 @@ static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq) struct request_queue *q = drive->queue; int write = rq_data_dir(rq) == WRITE; unsigned short sectors_per_frame = - queue_hardsect_size(q) >> SECTOR_BITS; + queue_logical_block_size(q) >> SECTOR_BITS; ide_debug_log(IDE_DBG_RQ, "rq->cmd[0]: 0x%x, rq->cmd_flags: 0x%x, " "secs_per_frame: %u", @@ -809,8 +756,8 @@ static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq) } /* fs requests *must* be hardware frame aligned */ - if ((rq->nr_sectors & (sectors_per_frame - 1)) || - (rq->sector & (sectors_per_frame - 1))) + if ((blk_rq_sectors(rq) & (sectors_per_frame - 1)) || + (blk_rq_pos(rq) & (sectors_per_frame - 1))) return ide_stopped; /* use DMA, if possible */ @@ -838,15 +785,10 @@ static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) drive->dma = 0; /* sg request */ - if (rq->bio || ((rq->cmd_type == REQ_TYPE_ATA_PC) && rq->data_len)) { + if (rq->bio) { struct request_queue *q = drive->queue; + char *buf = bio_data(rq->bio); unsigned int alignment; - char *buf; - - if (rq->bio) - buf = bio_data(rq->bio); - else - buf = rq->data; drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); @@ -858,7 +800,7 @@ static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) */ alignment = queue_dma_alignment(q) | q->dma_pad_mask; if ((unsigned long)buf & alignment - || rq->data_len & q->dma_pad_mask + || blk_rq_bytes(rq) & q->dma_pad_mask || object_is_on_stack(buf)) drive->dma = 0; } @@ -896,6 +838,9 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, goto out_end; } + /* prepare sense request for this command */ + ide_prep_sense(drive, rq); + memset(&cmd, 0, sizeof(cmd)); if (rq_data_dir(rq)) @@ -903,15 +848,14 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, cmd.rq = rq; - if (blk_fs_request(rq) || rq->data_len) { - ide_init_sg_cmd(&cmd, blk_fs_request(rq) ? (rq->nr_sectors << 9) - : rq->data_len); + if (blk_fs_request(rq) || blk_rq_bytes(rq)) { + ide_init_sg_cmd(&cmd, blk_rq_bytes(rq)); ide_map_sg(drive, &cmd); } return ide_issue_pc(drive, &cmd); out_end: - nsectors = rq->hard_nr_sectors; + nsectors = blk_rq_sectors(rq); if (nsectors == 0) nsectors = 1; @@ -1077,8 +1021,8 @@ int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense) /* save a private copy of the TOC capacity for error handling */ drive->probed_capacity = toc->capacity * sectors_per_frame; - blk_queue_hardsect_size(drive->queue, - sectors_per_frame << SECTOR_BITS); + blk_queue_logical_block_size(drive->queue, + sectors_per_frame << SECTOR_BITS); /* first read just the header, so we know how long the TOC is */ stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr, @@ -1394,9 +1338,9 @@ static int ide_cdrom_probe_capabilities(ide_drive_t *drive) /* standard prep_rq_fn that builds 10 byte cmds */ static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq) { - int hard_sect = queue_hardsect_size(q); - long block = (long)rq->hard_sector / (hard_sect >> 9); - unsigned long blocks = rq->hard_nr_sectors / (hard_sect >> 9); + int hard_sect = queue_logical_block_size(q); + long block = (long)blk_rq_pos(rq) / (hard_sect >> 9); + unsigned long blocks = blk_rq_sectors(rq) / (hard_sect >> 9); memset(rq->cmd, 0, BLK_MAX_CDB); @@ -1599,7 +1543,7 @@ static int ide_cdrom_setup(ide_drive_t *drive) nslots = ide_cdrom_probe_capabilities(drive); - blk_queue_hardsect_size(q, CD_FRAMESIZE); + blk_queue_logical_block_size(q, CD_FRAMESIZE); if (ide_cdrom_register(drive, nslots)) { printk(KERN_ERR PFX "%s: %s failed to register device with the" diff --git a/drivers/ide/ide-cd.h b/drivers/ide/ide-cd.h index 1d97101099c..93a3cf1b0f3 100644 --- a/drivers/ide/ide-cd.h +++ b/drivers/ide/ide-cd.h @@ -87,10 +87,6 @@ struct cdrom_info { struct atapi_toc *toc; - /* The result of the last successful request sense command - on this device. */ - struct request_sense sense_data; - u8 max_speed; /* Max speed of the drive. */ u8 current_speed; /* Current speed of the drive. */ diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index a9fbe2c3121..c6f7fcfb9d6 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -82,7 +82,7 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq, sector_t block) { ide_hwif_t *hwif = drive->hwif; - u16 nsectors = (u16)rq->nr_sectors; + u16 nsectors = (u16)blk_rq_sectors(rq); u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48); u8 dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); struct ide_cmd cmd; @@ -90,7 +90,7 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq, ide_startstop_t rc; if ((hwif->host_flags & IDE_HFLAG_NO_LBA48_DMA) && lba48 && dma) { - if (block + rq->nr_sectors > 1ULL << 28) + if (block + blk_rq_sectors(rq) > 1ULL << 28) dma = 0; else lba48 = 0; @@ -195,9 +195,9 @@ static ide_startstop_t ide_do_rw_disk(ide_drive_t *drive, struct request *rq, ledtrig_ide_activity(); - pr_debug("%s: %sing: block=%llu, sectors=%lu, buffer=0x%08lx\n", + pr_debug("%s: %sing: block=%llu, sectors=%u, buffer=0x%08lx\n", drive->name, rq_data_dir(rq) == READ ? "read" : "writ", - (unsigned long long)block, rq->nr_sectors, + (unsigned long long)block, blk_rq_sectors(rq), (unsigned long)rq->buffer); if (hwif->rw_disk) @@ -411,7 +411,6 @@ static void idedisk_prepare_flush(struct request_queue *q, struct request *rq) cmd->protocol = ATA_PROT_NODATA; rq->cmd_type = REQ_TYPE_ATA_TASKFILE; - rq->cmd_flags |= REQ_SOFTBARRIER; rq->special = cmd; } @@ -640,7 +639,7 @@ static void ide_disk_setup(ide_drive_t *drive) } printk(KERN_INFO "%s: max request size: %dKiB\n", drive->name, - q->max_sectors / 2); + queue_max_sectors(q) / 2); if (ata_id_is_ssd(id)) queue_flag_set_unlocked(QUEUE_FLAG_NONROT, q); diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index a0b8cab1d9a..001f68f0bb2 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -103,7 +103,7 @@ ide_startstop_t ide_dma_intr(ide_drive_t *drive) ide_finish_cmd(drive, cmd, stat); else ide_complete_rq(drive, 0, - cmd->rq->nr_sectors << 9); + blk_rq_sectors(cmd->rq) << 9); return ide_stopped; } printk(KERN_ERR "%s: %s: bad DMA status (0x%02x)\n", @@ -510,23 +510,11 @@ ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) /* * un-busy drive etc and make sure request is sane */ - rq = hwif->rq; - if (!rq) - goto out; - - hwif->rq = NULL; - - rq->errors = 0; - - if (!rq->bio) - goto out; - - rq->sector = rq->bio->bi_sector; - rq->current_nr_sectors = bio_iovec(rq->bio)->bv_len >> 9; - rq->hard_cur_sectors = rq->current_nr_sectors; - rq->buffer = bio_data(rq->bio); -out: + if (rq) { + hwif->rq = NULL; + rq->errors = 0; + } return ret; } diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c index 2b4868d95f8..650981758f1 100644 --- a/drivers/ide/ide-floppy.c +++ b/drivers/ide/ide-floppy.c @@ -134,13 +134,17 @@ static ide_startstop_t ide_floppy_issue_pc(ide_drive_t *drive, drive->pc = pc; if (pc->retries > IDEFLOPPY_MAX_PC_RETRIES) { + unsigned int done = blk_rq_bytes(drive->hwif->rq); + if (!(pc->flags & PC_FLAG_SUPPRESS_ERROR)) ide_floppy_report_error(floppy, pc); + /* Giving up */ pc->error = IDE_DRV_ERROR_GENERAL; drive->failed_pc = NULL; drive->pc_callback(drive, 0); + ide_complete_rq(drive, -EIO, done); return ide_stopped; } @@ -190,7 +194,7 @@ static void idefloppy_create_rw_cmd(ide_drive_t *drive, { struct ide_disk_obj *floppy = drive->driver_data; int block = sector / floppy->bs_factor; - int blocks = rq->nr_sectors / floppy->bs_factor; + int blocks = blk_rq_sectors(rq) / floppy->bs_factor; int cmd = rq_data_dir(rq); ide_debug_log(IDE_DBG_FUNC, "block: %d, blocks: %d", block, blocks); @@ -216,16 +220,14 @@ static void idefloppy_blockpc_cmd(struct ide_disk_obj *floppy, ide_init_pc(pc); memcpy(pc->c, rq->cmd, sizeof(pc->c)); pc->rq = rq; - if (rq->data_len && rq_data_dir(rq) == WRITE) - pc->flags |= PC_FLAG_WRITING; - pc->buf = rq->data; - if (rq->bio) + if (blk_rq_bytes(rq)) { pc->flags |= PC_FLAG_DMA_OK; - /* - * possibly problematic, doesn't look like ide-floppy correctly - * handled scattered requests if dma fails... - */ - pc->req_xfer = pc->buf_size = rq->data_len; + if (rq_data_dir(rq) == WRITE) + pc->flags |= PC_FLAG_WRITING; + } + /* pio will be performed by ide_pio_bytes() which handles sg fine */ + pc->buf = NULL; + pc->req_xfer = pc->buf_size = blk_rq_bytes(rq); } static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive, @@ -257,16 +259,16 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive, goto out_end; } if (blk_fs_request(rq)) { - if (((long)rq->sector % floppy->bs_factor) || - (rq->nr_sectors % floppy->bs_factor)) { + if (((long)blk_rq_pos(rq) % floppy->bs_factor) || + (blk_rq_sectors(rq) % floppy->bs_factor)) { printk(KERN_ERR PFX "%s: unsupported r/w rq size\n", drive->name); goto out_end; } pc = &floppy->queued_pc; idefloppy_create_rw_cmd(drive, pc, rq, (unsigned long)block); - } else if (blk_special_request(rq)) { - pc = (struct ide_atapi_pc *) rq->buffer; + } else if (blk_special_request(rq) || blk_sense_request(rq)) { + pc = (struct ide_atapi_pc *)rq->special; } else if (blk_pc_request(rq)) { pc = &floppy->queued_pc; idefloppy_blockpc_cmd(floppy, pc, rq); @@ -275,6 +277,8 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive, goto out_end; } + ide_prep_sense(drive, rq); + memset(&cmd, 0, sizeof(cmd)); if (rq_data_dir(rq)) diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 6415a2e2ba8..bba4297f2f0 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -116,9 +116,9 @@ void ide_complete_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat, u8 err) unsigned int ide_rq_bytes(struct request *rq) { if (blk_pc_request(rq)) - return rq->data_len; + return blk_rq_bytes(rq); else - return rq->hard_cur_sectors << 9; + return blk_rq_cur_sectors(rq) << 9; } EXPORT_SYMBOL_GPL(ide_rq_bytes); @@ -133,7 +133,7 @@ int ide_complete_rq(ide_drive_t *drive, int error, unsigned int nr_bytes) * and complete the whole request right now */ if (blk_noretry_request(rq) && error <= 0) - nr_bytes = rq->hard_nr_sectors << 9; + nr_bytes = blk_rq_sectors(rq) << 9; rc = ide_end_rq(drive, rq, error, nr_bytes); if (rc == 0) @@ -248,14 +248,7 @@ void ide_map_sg(ide_drive_t *drive, struct ide_cmd *cmd) struct scatterlist *sg = hwif->sg_table; struct request *rq = cmd->rq; - if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) { - sg_init_one(sg, rq->buffer, rq->nr_sectors * SECTOR_SIZE); - cmd->sg_nents = 1; - } else if (!rq->bio) { - sg_init_one(sg, rq->data, rq->data_len); - cmd->sg_nents = 1; - } else - cmd->sg_nents = blk_rq_map_sg(drive->queue, rq, sg); + cmd->sg_nents = blk_rq_map_sg(drive->queue, rq, sg); } EXPORT_SYMBOL_GPL(ide_map_sg); @@ -286,7 +279,7 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive, if (cmd) { if (cmd->protocol == ATA_PROT_PIO) { - ide_init_sg_cmd(cmd, rq->nr_sectors << 9); + ide_init_sg_cmd(cmd, blk_rq_sectors(rq) << 9); ide_map_sg(drive, cmd); } @@ -371,7 +364,7 @@ static ide_startstop_t start_request (ide_drive_t *drive, struct request *rq) if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) return execute_drive_cmd(drive, rq); else if (blk_pm_request(rq)) { - struct request_pm_state *pm = rq->data; + struct request_pm_state *pm = rq->special; #ifdef DEBUG_PM printk("%s: start_power_step(step: %d)\n", drive->name, pm->pm_step); @@ -394,7 +387,7 @@ static ide_startstop_t start_request (ide_drive_t *drive, struct request *rq) drv = *(struct ide_driver **)rq->rq_disk->private_data; - return drv->do_request(drive, rq, rq->sector); + return drv->do_request(drive, rq, blk_rq_pos(rq)); } return do_special(drive); kill_rq: @@ -484,6 +477,9 @@ void do_ide_request(struct request_queue *q) spin_unlock_irq(q->queue_lock); + /* HLD do_request() callback might sleep, make sure it's okay */ + might_sleep(); + if (ide_lock_host(host, hwif)) goto plug_device_2; @@ -491,10 +487,10 @@ void do_ide_request(struct request_queue *q) if (!ide_lock_port(hwif)) { ide_hwif_t *prev_port; + + WARN_ON_ONCE(hwif->rq); repeat: prev_port = hwif->host->cur_port; - hwif->rq = NULL; - if (drive->dev_flags & IDE_DFLAG_SLEEPING && time_after(drive->sleep, jiffies)) { ide_unlock_port(hwif); @@ -523,7 +519,9 @@ repeat: * we know that the queue isn't empty, but this can happen * if the q->prep_rq_fn() decides to kill a request */ - rq = elv_next_request(drive->queue); + if (!rq) + rq = blk_fetch_request(drive->queue); + spin_unlock_irq(q->queue_lock); spin_lock_irq(&hwif->lock); @@ -535,7 +533,7 @@ repeat: /* * Sanity: don't accept a request that isn't a PM request * if we are currently power managed. This is very important as - * blk_stop_queue() doesn't prevent the elv_next_request() + * blk_stop_queue() doesn't prevent the blk_fetch_request() * above to return us whatever is in the queue. Since we call * ide_do_request() ourselves, we end up taking requests while * the queue is blocked... @@ -559,8 +557,11 @@ repeat: startstop = start_request(drive, rq); spin_lock_irq(&hwif->lock); - if (startstop == ide_stopped) + if (startstop == ide_stopped) { + rq = hwif->rq; + hwif->rq = NULL; goto repeat; + } } else goto plug_device; out: @@ -576,18 +577,24 @@ plug_device: plug_device_2: spin_lock_irq(q->queue_lock); + if (rq) + blk_requeue_request(q, rq); if (!elv_queue_empty(q)) blk_plug_device(q); } -static void ide_plug_device(ide_drive_t *drive) +static void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq) { struct request_queue *q = drive->queue; unsigned long flags; spin_lock_irqsave(q->queue_lock, flags); + + if (rq) + blk_requeue_request(q, rq); if (!elv_queue_empty(q)) blk_plug_device(q); + spin_unlock_irqrestore(q->queue_lock, flags); } @@ -636,6 +643,7 @@ void ide_timer_expiry (unsigned long data) unsigned long flags; int wait = -1; int plug_device = 0; + struct request *uninitialized_var(rq_in_flight); spin_lock_irqsave(&hwif->lock, flags); @@ -697,6 +705,8 @@ void ide_timer_expiry (unsigned long data) spin_lock_irq(&hwif->lock); enable_irq(hwif->irq); if (startstop == ide_stopped && hwif->polling == 0) { + rq_in_flight = hwif->rq; + hwif->rq = NULL; ide_unlock_port(hwif); plug_device = 1; } @@ -705,7 +715,7 @@ void ide_timer_expiry (unsigned long data) if (plug_device) { ide_unlock_host(hwif->host); - ide_plug_device(drive); + ide_requeue_and_plug(drive, rq_in_flight); } } @@ -791,6 +801,7 @@ irqreturn_t ide_intr (int irq, void *dev_id) ide_startstop_t startstop; irqreturn_t irq_ret = IRQ_NONE; int plug_device = 0; + struct request *uninitialized_var(rq_in_flight); if (host->host_flags & IDE_HFLAG_SERIALIZE) { if (hwif != host->cur_port) @@ -870,6 +881,8 @@ irqreturn_t ide_intr (int irq, void *dev_id) */ if (startstop == ide_stopped && hwif->polling == 0) { BUG_ON(hwif->handler); + rq_in_flight = hwif->rq; + hwif->rq = NULL; ide_unlock_port(hwif); plug_device = 1; } @@ -879,7 +892,7 @@ out: out_early: if (plug_device) { ide_unlock_host(hwif->host); - ide_plug_device(drive); + ide_requeue_and_plug(drive, rq_in_flight); } return irq_ret; diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c index c1c25ebbaa1..5991b23793f 100644 --- a/drivers/ide/ide-ioctls.c +++ b/drivers/ide/ide-ioctls.c @@ -231,7 +231,6 @@ static int generic_drive_reset(ide_drive_t *drive) rq->cmd_type = REQ_TYPE_SPECIAL; rq->cmd_len = 1; rq->cmd[0] = REQ_DRIVE_RESET; - rq->cmd_flags |= REQ_SOFTBARRIER; if (blk_execute_rq(drive->queue, NULL, rq, 1)) ret = rq->errors; blk_put_request(rq); diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c index 2148df836ce..e386a32dc9b 100644 --- a/drivers/ide/ide-lib.c +++ b/drivers/ide/ide-lib.c @@ -96,7 +96,7 @@ static void ide_dump_ata_error(ide_drive_t *drive, u8 err) if (rq) printk(KERN_CONT ", sector=%llu", - (unsigned long long)rq->sector); + (unsigned long long)blk_rq_pos(rq)); } printk(KERN_CONT "\n"); } diff --git a/drivers/ide/ide-park.c b/drivers/ide/ide-park.c index 310d03f2b5b..a914023d6d0 100644 --- a/drivers/ide/ide-park.c +++ b/drivers/ide/ide-park.c @@ -24,11 +24,8 @@ static void issue_park_cmd(ide_drive_t *drive, unsigned long timeout) start_queue = 1; spin_unlock_irq(&hwif->lock); - if (start_queue) { - spin_lock_irq(q->queue_lock); - blk_start_queueing(q); - spin_unlock_irq(q->queue_lock); - } + if (start_queue) + blk_run_queue(q); return; } spin_unlock_irq(&hwif->lock); diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c index 0d8a151c0a0..ba1488bd843 100644 --- a/drivers/ide/ide-pm.c +++ b/drivers/ide/ide-pm.c @@ -7,7 +7,6 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg) ide_hwif_t *hwif = drive->hwif; struct request *rq; struct request_pm_state rqpm; - struct ide_cmd cmd; int ret; /* call ACPI _GTM only once */ @@ -15,11 +14,9 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg) ide_acpi_get_timing(hwif); memset(&rqpm, 0, sizeof(rqpm)); - memset(&cmd, 0, sizeof(cmd)); rq = blk_get_request(drive->queue, READ, __GFP_WAIT); rq->cmd_type = REQ_TYPE_PM_SUSPEND; - rq->special = &cmd; - rq->data = &rqpm; + rq->special = &rqpm; rqpm.pm_step = IDE_PM_START_SUSPEND; if (mesg.event == PM_EVENT_PRETHAW) mesg.event = PM_EVENT_FREEZE; @@ -41,7 +38,6 @@ int generic_ide_resume(struct device *dev) ide_hwif_t *hwif = drive->hwif; struct request *rq; struct request_pm_state rqpm; - struct ide_cmd cmd; int err; /* call ACPI _PS0 / _STM only once */ @@ -53,12 +49,10 @@ int generic_ide_resume(struct device *dev) ide_acpi_exec_tfs(drive); memset(&rqpm, 0, sizeof(rqpm)); - memset(&cmd, 0, sizeof(cmd)); rq = blk_get_request(drive->queue, READ, __GFP_WAIT); rq->cmd_type = REQ_TYPE_PM_RESUME; rq->cmd_flags |= REQ_PREEMPT; - rq->special = &cmd; - rq->data = &rqpm; + rq->special = &rqpm; rqpm.pm_step = IDE_PM_START_RESUME; rqpm.pm_state = PM_EVENT_ON; @@ -77,7 +71,7 @@ int generic_ide_resume(struct device *dev) void ide_complete_power_step(ide_drive_t *drive, struct request *rq) { - struct request_pm_state *pm = rq->data; + struct request_pm_state *pm = rq->special; #ifdef DEBUG_PM printk(KERN_INFO "%s: complete_power_step(step: %d)\n", @@ -107,10 +101,8 @@ void ide_complete_power_step(ide_drive_t *drive, struct request *rq) ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *rq) { - struct request_pm_state *pm = rq->data; - struct ide_cmd *cmd = rq->special; - - memset(cmd, 0, sizeof(*cmd)); + struct request_pm_state *pm = rq->special; + struct ide_cmd cmd = { }; switch (pm->pm_step) { case IDE_PM_FLUSH_CACHE: /* Suspend step 1 (flush cache) */ @@ -123,12 +115,12 @@ ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *rq) return ide_stopped; } if (ata_id_flush_ext_enabled(drive->id)) - cmd->tf.command = ATA_CMD_FLUSH_EXT; + cmd.tf.command = ATA_CMD_FLUSH_EXT; else - cmd->tf.command = ATA_CMD_FLUSH; + cmd.tf.command = ATA_CMD_FLUSH; goto out_do_tf; case IDE_PM_STANDBY: /* Suspend step 2 (standby) */ - cmd->tf.command = ATA_CMD_STANDBYNOW1; + cmd.tf.command = ATA_CMD_STANDBYNOW1; goto out_do_tf; case IDE_PM_RESTORE_PIO: /* Resume step 1 (restore PIO) */ ide_set_max_pio(drive); @@ -141,7 +133,7 @@ ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *rq) ide_complete_power_step(drive, rq); return ide_stopped; case IDE_PM_IDLE: /* Resume step 2 (idle) */ - cmd->tf.command = ATA_CMD_IDLEIMMEDIATE; + cmd.tf.command = ATA_CMD_IDLEIMMEDIATE; goto out_do_tf; case IDE_PM_RESTORE_DMA: /* Resume step 3 (restore DMA) */ /* @@ -163,11 +155,11 @@ ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *rq) return ide_stopped; out_do_tf: - cmd->valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; - cmd->valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; - cmd->protocol = ATA_PROT_NODATA; + cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; + cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; + cmd.protocol = ATA_PROT_NODATA; - return do_rw_taskfile(drive, cmd); + return do_rw_taskfile(drive, &cmd); } /** @@ -181,7 +173,7 @@ out_do_tf: void ide_complete_pm_rq(ide_drive_t *drive, struct request *rq) { struct request_queue *q = drive->queue; - struct request_pm_state *pm = rq->data; + struct request_pm_state *pm = rq->special; unsigned long flags; ide_complete_power_step(drive, rq); @@ -207,7 +199,7 @@ void ide_complete_pm_rq(ide_drive_t *drive, struct request *rq) void ide_check_pm_state(ide_drive_t *drive, struct request *rq) { - struct request_pm_state *pm = rq->data; + struct request_pm_state *pm = rq->special; if (blk_pm_suspend_request(rq) && pm->pm_step == IDE_PM_START_SUSPEND) diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 3a53e0834cf..d9764f0bc82 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -131,13 +131,6 @@ enum { IDETAPE_DIR_WRITE = (1 << 2), }; -struct idetape_bh { - u32 b_size; - atomic_t b_count; - struct idetape_bh *b_reqnext; - char *b_data; -}; - /* Tape door status */ #define DOOR_UNLOCKED 0 #define DOOR_LOCKED 1 @@ -219,18 +212,12 @@ typedef struct ide_tape_obj { /* Data buffer size chosen based on the tape's recommendation */ int buffer_size; - /* merge buffer */ - struct idetape_bh *merge_bh; - /* size of the merge buffer */ - int merge_bh_size; - /* pointer to current buffer head within the merge buffer */ - struct idetape_bh *bh; - char *b_data; - int b_count; - - int pages_per_buffer; - /* Wasted space in each stage */ - int excess_bh_size; + /* Staging buffer of buffer_size bytes */ + void *buf; + /* The read/write cursor */ + void *cur; + /* The number of valid bytes in buf */ + size_t valid; /* Measures average tape speed */ unsigned long avg_time; @@ -297,84 +284,6 @@ static struct ide_tape_obj *ide_tape_chrdev_get(unsigned int i) return tape; } -static int idetape_input_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, - unsigned int bcount) -{ - struct idetape_bh *bh = pc->bh; - int count; - - while (bcount) { - if (bh == NULL) - break; - count = min( - (unsigned int)(bh->b_size - atomic_read(&bh->b_count)), - bcount); - drive->hwif->tp_ops->input_data(drive, NULL, bh->b_data + - atomic_read(&bh->b_count), count); - bcount -= count; - atomic_add(count, &bh->b_count); - if (atomic_read(&bh->b_count) == bh->b_size) { - bh = bh->b_reqnext; - if (bh) - atomic_set(&bh->b_count, 0); - } - } - - pc->bh = bh; - - return bcount; -} - -static int idetape_output_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, - unsigned int bcount) -{ - struct idetape_bh *bh = pc->bh; - int count; - - while (bcount) { - if (bh == NULL) - break; - count = min((unsigned int)pc->b_count, (unsigned int)bcount); - drive->hwif->tp_ops->output_data(drive, NULL, pc->b_data, count); - bcount -= count; - pc->b_data += count; - pc->b_count -= count; - if (!pc->b_count) { - bh = bh->b_reqnext; - pc->bh = bh; - if (bh) { - pc->b_data = bh->b_data; - pc->b_count = atomic_read(&bh->b_count); - } - } - } - - return bcount; -} - -static void idetape_update_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc) -{ - struct idetape_bh *bh = pc->bh; - int count; - unsigned int bcount = pc->xferred; - - if (pc->flags & PC_FLAG_WRITING) - return; - while (bcount) { - if (bh == NULL) { - printk(KERN_ERR "ide-tape: bh == NULL in %s\n", - __func__); - return; - } - count = min((unsigned int)bh->b_size, (unsigned int)bcount); - atomic_set(&bh->b_count, count); - if (atomic_read(&bh->b_count) == bh->b_size) - bh = bh->b_reqnext; - bcount -= count; - } - pc->bh = bh; -} - /* * called on each failed packet command retry to analyze the request sense. We * currently do not utilize this information. @@ -392,12 +301,10 @@ static void idetape_analyze_error(ide_drive_t *drive, u8 *sense) pc->c[0], tape->sense_key, tape->asc, tape->ascq); /* Correct pc->xferred by asking the tape. */ - if (pc->flags & PC_FLAG_DMA_ERROR) { + if (pc->flags & PC_FLAG_DMA_ERROR) pc->xferred = pc->req_xfer - tape->blk_size * get_unaligned_be32(&sense[3]); - idetape_update_buffers(drive, pc); - } /* * If error was the result of a zero-length read or write command, @@ -436,29 +343,6 @@ static void idetape_analyze_error(ide_drive_t *drive, u8 *sense) } } -/* Free data buffers completely. */ -static void ide_tape_kfree_buffer(idetape_tape_t *tape) -{ - struct idetape_bh *prev_bh, *bh = tape->merge_bh; - - while (bh) { - u32 size = bh->b_size; - - while (size) { - unsigned int order = fls(size >> PAGE_SHIFT)-1; - - if (bh->b_data) - free_pages((unsigned long)bh->b_data, order); - - size &= (order-1); - bh->b_data += (1 << order) * PAGE_SIZE; - } - prev_bh = bh; - bh = bh->b_reqnext; - kfree(prev_bh); - } -} - static void ide_tape_handle_dsc(ide_drive_t *); static int ide_tape_callback(ide_drive_t *drive, int dsc) @@ -496,7 +380,7 @@ static int ide_tape_callback(ide_drive_t *drive, int dsc) } tape->first_frame += blocks; - rq->current_nr_sectors -= blocks; + rq->resid_len -= blocks * tape->blk_size; if (pc->error) { uptodate = 0; @@ -558,19 +442,6 @@ static void ide_tape_handle_dsc(ide_drive_t *drive) idetape_postpone_request(drive); } -static int ide_tape_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, - unsigned int bcount, int write) -{ - unsigned int bleft; - - if (write) - bleft = idetape_output_buffers(drive, pc, bcount); - else - bleft = idetape_input_buffers(drive, pc, bcount); - - return bcount - bleft; -} - /* * Packet Command Interface * @@ -622,6 +493,8 @@ static ide_startstop_t ide_tape_issue_pc(ide_drive_t *drive, if (pc->retries > IDETAPE_MAX_PC_RETRIES || (pc->flags & PC_FLAG_ABORT)) { + unsigned int done = blk_rq_bytes(drive->hwif->rq); + /* * We will "abort" retrying a packet command in case legitimate * error code was received (crossing a filemark, or end of the @@ -641,8 +514,10 @@ static ide_startstop_t ide_tape_issue_pc(ide_drive_t *drive, /* Giving up */ pc->error = IDE_DRV_ERROR_GENERAL; } + drive->failed_pc = NULL; drive->pc_callback(drive, 0); + ide_complete_rq(drive, -EIO, done); return ide_stopped; } debug_log(DBG_SENSE, "Retry #%d, cmd = %02X\n", pc->retries, pc->c[0]); @@ -695,7 +570,7 @@ static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive) printk(KERN_ERR "ide-tape: %s: I/O error, ", tape->name); /* Retry operation */ - ide_retry_pc(drive, tape->disk); + ide_retry_pc(drive); return ide_stopped; } pc->error = 0; @@ -711,27 +586,22 @@ static void ide_tape_create_rw_cmd(idetape_tape_t *tape, struct ide_atapi_pc *pc, struct request *rq, u8 opcode) { - struct idetape_bh *bh = (struct idetape_bh *)rq->special; - unsigned int length = rq->current_nr_sectors; + unsigned int length = blk_rq_sectors(rq); ide_init_pc(pc); put_unaligned(cpu_to_be32(length), (unsigned int *) &pc->c[1]); pc->c[1] = 1; - pc->bh = bh; pc->buf = NULL; pc->buf_size = length * tape->blk_size; pc->req_xfer = pc->buf_size; if (pc->req_xfer == tape->buffer_size) pc->flags |= PC_FLAG_DMA_OK; - if (opcode == READ_6) { + if (opcode == READ_6) pc->c[0] = READ_6; - atomic_set(&bh->b_count, 0); - } else if (opcode == WRITE_6) { + else if (opcode == WRITE_6) { pc->c[0] = WRITE_6; pc->flags |= PC_FLAG_WRITING; - pc->b_data = bh->b_data; - pc->b_count = atomic_read(&bh->b_count); } memcpy(rq->cmd, pc->c, 12); @@ -747,12 +617,10 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, struct ide_cmd cmd; u8 stat; - debug_log(DBG_SENSE, "sector: %llu, nr_sectors: %lu," - " current_nr_sectors: %u\n", - (unsigned long long)rq->sector, rq->nr_sectors, - rq->current_nr_sectors); + debug_log(DBG_SENSE, "sector: %llu, nr_sectors: %u\n" + (unsigned long long)blk_rq_pos(rq), blk_rq_sectors(rq)); - if (!blk_special_request(rq)) { + if (!(blk_special_request(rq) || blk_sense_request(rq))) { /* We do not support buffer cache originated requests. */ printk(KERN_NOTICE "ide-tape: %s: Unsupported request in " "request queue (%d)\n", drive->name, rq->cmd_type); @@ -828,7 +696,7 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, goto out; } if (rq->cmd[13] & REQ_IDETAPE_PC1) { - pc = (struct ide_atapi_pc *) rq->buffer; + pc = (struct ide_atapi_pc *)rq->special; rq->cmd[13] &= ~(REQ_IDETAPE_PC1); rq->cmd[13] |= REQ_IDETAPE_PC2; goto out; @@ -840,6 +708,9 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, BUG(); out: + /* prepare sense request for this command */ + ide_prep_sense(drive, rq); + memset(&cmd, 0, sizeof(cmd)); if (rq_data_dir(rq)) @@ -847,167 +718,10 @@ out: cmd.rq = rq; - return ide_tape_issue_pc(drive, &cmd, pc); -} - -/* - * The function below uses __get_free_pages to allocate a data buffer of size - * tape->buffer_size (or a bit more). We attempt to combine sequential pages as - * much as possible. - * - * It returns a pointer to the newly allocated buffer, or NULL in case of - * failure. - */ -static struct idetape_bh *ide_tape_kmalloc_buffer(idetape_tape_t *tape, - int full, int clear) -{ - struct idetape_bh *prev_bh, *bh, *merge_bh; - int pages = tape->pages_per_buffer; - unsigned int order, b_allocd; - char *b_data = NULL; - - merge_bh = kmalloc(sizeof(struct idetape_bh), GFP_KERNEL); - bh = merge_bh; - if (bh == NULL) - goto abort; - - order = fls(pages) - 1; - bh->b_data = (char *) __get_free_pages(GFP_KERNEL, order); - if (!bh->b_data) - goto abort; - b_allocd = (1 << order) * PAGE_SIZE; - pages &= (order-1); - - if (clear) - memset(bh->b_data, 0, b_allocd); - bh->b_reqnext = NULL; - bh->b_size = b_allocd; - atomic_set(&bh->b_count, full ? bh->b_size : 0); - - while (pages) { - order = fls(pages) - 1; - b_data = (char *) __get_free_pages(GFP_KERNEL, order); - if (!b_data) - goto abort; - b_allocd = (1 << order) * PAGE_SIZE; - - if (clear) - memset(b_data, 0, b_allocd); - - /* newly allocated page frames below buffer header or ...*/ - if (bh->b_data == b_data + b_allocd) { - bh->b_size += b_allocd; - bh->b_data -= b_allocd; - if (full) - atomic_add(b_allocd, &bh->b_count); - continue; - } - /* they are above the header */ - if (b_data == bh->b_data + bh->b_size) { - bh->b_size += b_allocd; - if (full) - atomic_add(b_allocd, &bh->b_count); - continue; - } - prev_bh = bh; - bh = kmalloc(sizeof(struct idetape_bh), GFP_KERNEL); - if (!bh) { - free_pages((unsigned long) b_data, order); - goto abort; - } - bh->b_reqnext = NULL; - bh->b_data = b_data; - bh->b_size = b_allocd; - atomic_set(&bh->b_count, full ? bh->b_size : 0); - prev_bh->b_reqnext = bh; - - pages &= (order-1); - } - - bh->b_size -= tape->excess_bh_size; - if (full) - atomic_sub(tape->excess_bh_size, &bh->b_count); - return merge_bh; -abort: - ide_tape_kfree_buffer(tape); - return NULL; -} + ide_init_sg_cmd(&cmd, pc->req_xfer); + ide_map_sg(drive, &cmd); -static int idetape_copy_stage_from_user(idetape_tape_t *tape, - const char __user *buf, int n) -{ - struct idetape_bh *bh = tape->bh; - int count; - int ret = 0; - - while (n) { - if (bh == NULL) { - printk(KERN_ERR "ide-tape: bh == NULL in %s\n", - __func__); - return 1; - } - count = min((unsigned int) - (bh->b_size - atomic_read(&bh->b_count)), - (unsigned int)n); - if (copy_from_user(bh->b_data + atomic_read(&bh->b_count), buf, - count)) - ret = 1; - n -= count; - atomic_add(count, &bh->b_count); - buf += count; - if (atomic_read(&bh->b_count) == bh->b_size) { - bh = bh->b_reqnext; - if (bh) - atomic_set(&bh->b_count, 0); - } - } - tape->bh = bh; - return ret; -} - -static int idetape_copy_stage_to_user(idetape_tape_t *tape, char __user *buf, - int n) -{ - struct idetape_bh *bh = tape->bh; - int count; - int ret = 0; - - while (n) { - if (bh == NULL) { - printk(KERN_ERR "ide-tape: bh == NULL in %s\n", - __func__); - return 1; - } - count = min(tape->b_count, n); - if (copy_to_user(buf, tape->b_data, count)) - ret = 1; - n -= count; - tape->b_data += count; - tape->b_count -= count; - buf += count; - if (!tape->b_count) { - bh = bh->b_reqnext; - tape->bh = bh; - if (bh) { - tape->b_data = bh->b_data; - tape->b_count = atomic_read(&bh->b_count); - } - } - } - return ret; -} - -static void idetape_init_merge_buffer(idetape_tape_t *tape) -{ - struct idetape_bh *bh = tape->merge_bh; - tape->bh = tape->merge_bh; - - if (tape->chrdev_dir == IDETAPE_DIR_WRITE) - atomic_set(&bh->b_count, 0); - else { - tape->b_data = bh->b_data; - tape->b_count = atomic_read(&bh->b_count); - } + return ide_tape_issue_pc(drive, &cmd, pc); } /* @@ -1107,10 +821,10 @@ static void __ide_tape_discard_merge_buffer(ide_drive_t *drive) return; clear_bit(IDE_AFLAG_FILEMARK, &drive->atapi_flags); - tape->merge_bh_size = 0; - if (tape->merge_bh != NULL) { - ide_tape_kfree_buffer(tape); - tape->merge_bh = NULL; + tape->valid = 0; + if (tape->buf != NULL) { + kfree(tape->buf); + tape->buf = NULL; } tape->chrdev_dir = IDETAPE_DIR_NONE; @@ -1164,36 +878,44 @@ static void ide_tape_discard_merge_buffer(ide_drive_t *drive, * Generate a read/write request for the block device interface and wait for it * to be serviced. */ -static int idetape_queue_rw_tail(ide_drive_t *drive, int cmd, int blocks, - struct idetape_bh *bh) +static int idetape_queue_rw_tail(ide_drive_t *drive, int cmd, int size) { idetape_tape_t *tape = drive->driver_data; struct request *rq; - int ret, errors; + int ret; debug_log(DBG_SENSE, "%s: cmd=%d\n", __func__, cmd); + BUG_ON(cmd != REQ_IDETAPE_READ && cmd != REQ_IDETAPE_WRITE); + BUG_ON(size < 0 || size % tape->blk_size); rq = blk_get_request(drive->queue, READ, __GFP_WAIT); rq->cmd_type = REQ_TYPE_SPECIAL; rq->cmd[13] = cmd; rq->rq_disk = tape->disk; - rq->special = (void *)bh; - rq->sector = tape->first_frame; - rq->nr_sectors = blocks; - rq->current_nr_sectors = blocks; - blk_execute_rq(drive->queue, tape->disk, rq, 0); + rq->__sector = tape->first_frame; - errors = rq->errors; - ret = tape->blk_size * (blocks - rq->current_nr_sectors); - blk_put_request(rq); + if (size) { + ret = blk_rq_map_kern(drive->queue, rq, tape->buf, size, + __GFP_WAIT); + if (ret) + goto out_put; + } - if ((cmd & (REQ_IDETAPE_READ | REQ_IDETAPE_WRITE)) == 0) - return 0; + blk_execute_rq(drive->queue, tape->disk, rq, 0); - if (tape->merge_bh) - idetape_init_merge_buffer(tape); - if (errors == IDE_DRV_ERROR_GENERAL) - return -EIO; + /* calculate the number of transferred bytes and update buffer state */ + size -= rq->resid_len; + tape->cur = tape->buf; + if (cmd == REQ_IDETAPE_READ) + tape->valid = size; + else + tape->valid = 0; + + ret = size; + if (rq->errors == IDE_DRV_ERROR_GENERAL) + ret = -EIO; +out_put: + blk_put_request(rq); return ret; } @@ -1230,153 +952,87 @@ static void idetape_create_space_cmd(struct ide_atapi_pc *pc, int count, u8 cmd) pc->flags |= PC_FLAG_WAIT_FOR_DSC; } -/* Queue up a character device originated write request. */ -static int idetape_add_chrdev_write_request(ide_drive_t *drive, int blocks) -{ - idetape_tape_t *tape = drive->driver_data; - - debug_log(DBG_CHRDEV, "Enter %s\n", __func__); - - return idetape_queue_rw_tail(drive, REQ_IDETAPE_WRITE, - blocks, tape->merge_bh); -} - static void ide_tape_flush_merge_buffer(ide_drive_t *drive) { idetape_tape_t *tape = drive->driver_data; - int blocks, min; - struct idetape_bh *bh; if (tape->chrdev_dir != IDETAPE_DIR_WRITE) { printk(KERN_ERR "ide-tape: bug: Trying to empty merge buffer" " but we are not writing.\n"); return; } - if (tape->merge_bh_size > tape->buffer_size) { - printk(KERN_ERR "ide-tape: bug: merge_buffer too big\n"); - tape->merge_bh_size = tape->buffer_size; - } - if (tape->merge_bh_size) { - blocks = tape->merge_bh_size / tape->blk_size; - if (tape->merge_bh_size % tape->blk_size) { - unsigned int i; - - blocks++; - i = tape->blk_size - tape->merge_bh_size % - tape->blk_size; - bh = tape->bh->b_reqnext; - while (bh) { - atomic_set(&bh->b_count, 0); - bh = bh->b_reqnext; - } - bh = tape->bh; - while (i) { - if (bh == NULL) { - printk(KERN_INFO "ide-tape: bug," - " bh NULL\n"); - break; - } - min = min(i, (unsigned int)(bh->b_size - - atomic_read(&bh->b_count))); - memset(bh->b_data + atomic_read(&bh->b_count), - 0, min); - atomic_add(min, &bh->b_count); - i -= min; - bh = bh->b_reqnext; - } - } - (void) idetape_add_chrdev_write_request(drive, blocks); - tape->merge_bh_size = 0; - } - if (tape->merge_bh != NULL) { - ide_tape_kfree_buffer(tape); - tape->merge_bh = NULL; + if (tape->buf) { + size_t aligned = roundup(tape->valid, tape->blk_size); + + memset(tape->cur, 0, aligned - tape->valid); + idetape_queue_rw_tail(drive, REQ_IDETAPE_WRITE, aligned); + kfree(tape->buf); + tape->buf = NULL; } tape->chrdev_dir = IDETAPE_DIR_NONE; } -static int idetape_init_read(ide_drive_t *drive) +static int idetape_init_rw(ide_drive_t *drive, int dir) { idetape_tape_t *tape = drive->driver_data; - int bytes_read; + int rc; - /* Initialize read operation */ - if (tape->chrdev_dir != IDETAPE_DIR_READ) { - if (tape->chrdev_dir == IDETAPE_DIR_WRITE) { - ide_tape_flush_merge_buffer(drive); - idetape_flush_tape_buffers(drive); - } - if (tape->merge_bh || tape->merge_bh_size) { - printk(KERN_ERR "ide-tape: merge_bh_size should be" - " 0 now\n"); - tape->merge_bh_size = 0; - } - tape->merge_bh = ide_tape_kmalloc_buffer(tape, 0, 0); - if (!tape->merge_bh) - return -ENOMEM; - tape->chrdev_dir = IDETAPE_DIR_READ; + BUG_ON(dir != IDETAPE_DIR_READ && dir != IDETAPE_DIR_WRITE); - /* - * Issue a read 0 command to ensure that DSC handshake is - * switched from completion mode to buffer available mode. - * No point in issuing this if DSC overlap isn't supported, some - * drives (Seagate STT3401A) will return an error. - */ - if (drive->dev_flags & IDE_DFLAG_DSC_OVERLAP) { - bytes_read = idetape_queue_rw_tail(drive, - REQ_IDETAPE_READ, 0, - tape->merge_bh); - if (bytes_read < 0) { - ide_tape_kfree_buffer(tape); - tape->merge_bh = NULL; - tape->chrdev_dir = IDETAPE_DIR_NONE; - return bytes_read; - } - } - } + if (tape->chrdev_dir == dir) + return 0; - return 0; -} + if (tape->chrdev_dir == IDETAPE_DIR_READ) + ide_tape_discard_merge_buffer(drive, 1); + else if (tape->chrdev_dir == IDETAPE_DIR_WRITE) { + ide_tape_flush_merge_buffer(drive); + idetape_flush_tape_buffers(drive); + } -/* called from idetape_chrdev_read() to service a chrdev read request. */ -static int idetape_add_chrdev_read_request(ide_drive_t *drive, int blocks) -{ - idetape_tape_t *tape = drive->driver_data; + if (tape->buf || tape->valid) { + printk(KERN_ERR "ide-tape: valid should be 0 now\n"); + tape->valid = 0; + } - debug_log(DBG_PROCS, "Enter %s, %d blocks\n", __func__, blocks); + tape->buf = kmalloc(tape->buffer_size, GFP_KERNEL); + if (!tape->buf) + return -ENOMEM; + tape->chrdev_dir = dir; + tape->cur = tape->buf; - /* If we are at a filemark, return a read length of 0 */ - if (test_bit(IDE_AFLAG_FILEMARK, &drive->atapi_flags)) - return 0; - - idetape_init_read(drive); + /* + * Issue a 0 rw command to ensure that DSC handshake is + * switched from completion mode to buffer available mode. No + * point in issuing this if DSC overlap isn't supported, some + * drives (Seagate STT3401A) will return an error. + */ + if (drive->dev_flags & IDE_DFLAG_DSC_OVERLAP) { + int cmd = dir == IDETAPE_DIR_READ ? REQ_IDETAPE_READ + : REQ_IDETAPE_WRITE; + + rc = idetape_queue_rw_tail(drive, cmd, 0); + if (rc < 0) { + kfree(tape->buf); + tape->buf = NULL; + tape->chrdev_dir = IDETAPE_DIR_NONE; + return rc; + } + } - return idetape_queue_rw_tail(drive, REQ_IDETAPE_READ, blocks, - tape->merge_bh); + return 0; } static void idetape_pad_zeros(ide_drive_t *drive, int bcount) { idetape_tape_t *tape = drive->driver_data; - struct idetape_bh *bh; - int blocks; + + memset(tape->buf, 0, tape->buffer_size); while (bcount) { - unsigned int count; + unsigned int count = min(tape->buffer_size, bcount); - bh = tape->merge_bh; - count = min(tape->buffer_size, bcount); + idetape_queue_rw_tail(drive, REQ_IDETAPE_WRITE, count); bcount -= count; - blocks = count / tape->blk_size; - while (count) { - atomic_set(&bh->b_count, - min(count, (unsigned int)bh->b_size)); - memset(bh->b_data, 0, atomic_read(&bh->b_count)); - count -= atomic_read(&bh->b_count); - bh = bh->b_reqnext; - } - idetape_queue_rw_tail(drive, REQ_IDETAPE_WRITE, blocks, - tape->merge_bh); } } @@ -1456,7 +1112,7 @@ static int idetape_space_over_filemarks(ide_drive_t *drive, short mt_op, } if (tape->chrdev_dir == IDETAPE_DIR_READ) { - tape->merge_bh_size = 0; + tape->valid = 0; if (test_and_clear_bit(IDE_AFLAG_FILEMARK, &drive->atapi_flags)) ++count; ide_tape_discard_merge_buffer(drive, 0); @@ -1505,9 +1161,9 @@ static ssize_t idetape_chrdev_read(struct file *file, char __user *buf, { struct ide_tape_obj *tape = file->private_data; ide_drive_t *drive = tape->drive; - ssize_t bytes_read, temp, actually_read = 0, rc; + size_t done = 0; ssize_t ret = 0; - u16 ctl = *(u16 *)&tape->caps[12]; + int rc; debug_log(DBG_CHRDEV, "Enter %s, count %Zd\n", __func__, count); @@ -1517,49 +1173,43 @@ static ssize_t idetape_chrdev_read(struct file *file, char __user *buf, (count % tape->blk_size) == 0) tape->user_bs_factor = count / tape->blk_size; } - rc = idetape_init_read(drive); + + rc = idetape_init_rw(drive, IDETAPE_DIR_READ); if (rc < 0) return rc; - if (count == 0) - return (0); - if (tape->merge_bh_size) { - actually_read = min((unsigned int)(tape->merge_bh_size), - (unsigned int)count); - if (idetape_copy_stage_to_user(tape, buf, actually_read)) - ret = -EFAULT; - buf += actually_read; - tape->merge_bh_size -= actually_read; - count -= actually_read; - } - while (count >= tape->buffer_size) { - bytes_read = idetape_add_chrdev_read_request(drive, ctl); - if (bytes_read <= 0) - goto finish; - if (idetape_copy_stage_to_user(tape, buf, bytes_read)) - ret = -EFAULT; - buf += bytes_read; - count -= bytes_read; - actually_read += bytes_read; - } - if (count) { - bytes_read = idetape_add_chrdev_read_request(drive, ctl); - if (bytes_read <= 0) - goto finish; - temp = min((unsigned long)count, (unsigned long)bytes_read); - if (idetape_copy_stage_to_user(tape, buf, temp)) + + while (done < count) { + size_t todo; + + /* refill if staging buffer is empty */ + if (!tape->valid) { + /* If we are at a filemark, nothing more to read */ + if (test_bit(IDE_AFLAG_FILEMARK, &drive->atapi_flags)) + break; + /* read */ + if (idetape_queue_rw_tail(drive, REQ_IDETAPE_READ, + tape->buffer_size) <= 0) + break; + } + + /* copy out */ + todo = min_t(size_t, count - done, tape->valid); + if (copy_to_user(buf + done, tape->cur, todo)) ret = -EFAULT; - actually_read += temp; - tape->merge_bh_size = bytes_read-temp; + + tape->cur += todo; + tape->valid -= todo; + done += todo; } -finish: - if (!actually_read && test_bit(IDE_AFLAG_FILEMARK, &drive->atapi_flags)) { + + if (!done && test_bit(IDE_AFLAG_FILEMARK, &drive->atapi_flags)) { debug_log(DBG_SENSE, "%s: spacing over filemark\n", tape->name); idetape_space_over_filemarks(drive, MTFSF, 1); return 0; } - return ret ? ret : actually_read; + return ret ? ret : done; } static ssize_t idetape_chrdev_write(struct file *file, const char __user *buf, @@ -1567,9 +1217,9 @@ static ssize_t idetape_chrdev_write(struct file *file, const char __user *buf, { struct ide_tape_obj *tape = file->private_data; ide_drive_t *drive = tape->drive; - ssize_t actually_written = 0; + size_t done = 0; ssize_t ret = 0; - u16 ctl = *(u16 *)&tape->caps[12]; + int rc; /* The drive is write protected. */ if (tape->write_prot) @@ -1578,80 +1228,31 @@ static ssize_t idetape_chrdev_write(struct file *file, const char __user *buf, debug_log(DBG_CHRDEV, "Enter %s, count %Zd\n", __func__, count); /* Initialize write operation */ - if (tape->chrdev_dir != IDETAPE_DIR_WRITE) { - if (tape->chrdev_dir == IDETAPE_DIR_READ) - ide_tape_discard_merge_buffer(drive, 1); - if (tape->merge_bh || tape->merge_bh_size) { - printk(KERN_ERR "ide-tape: merge_bh_size " - "should be 0 now\n"); - tape->merge_bh_size = 0; - } - tape->merge_bh = ide_tape_kmalloc_buffer(tape, 0, 0); - if (!tape->merge_bh) - return -ENOMEM; - tape->chrdev_dir = IDETAPE_DIR_WRITE; - idetape_init_merge_buffer(tape); + rc = idetape_init_rw(drive, IDETAPE_DIR_WRITE); + if (rc < 0) + return rc; - /* - * Issue a write 0 command to ensure that DSC handshake is - * switched from completion mode to buffer available mode. No - * point in issuing this if DSC overlap isn't supported, some - * drives (Seagate STT3401A) will return an error. - */ - if (drive->dev_flags & IDE_DFLAG_DSC_OVERLAP) { - ssize_t retval = idetape_queue_rw_tail(drive, - REQ_IDETAPE_WRITE, 0, - tape->merge_bh); - if (retval < 0) { - ide_tape_kfree_buffer(tape); - tape->merge_bh = NULL; - tape->chrdev_dir = IDETAPE_DIR_NONE; - return retval; - } - } - } - if (count == 0) - return (0); - if (tape->merge_bh_size) { - if (tape->merge_bh_size >= tape->buffer_size) { - printk(KERN_ERR "ide-tape: bug: merge buf too big\n"); - tape->merge_bh_size = 0; - } - actually_written = min((unsigned int) - (tape->buffer_size - tape->merge_bh_size), - (unsigned int)count); - if (idetape_copy_stage_from_user(tape, buf, actually_written)) - ret = -EFAULT; - buf += actually_written; - tape->merge_bh_size += actually_written; - count -= actually_written; - - if (tape->merge_bh_size == tape->buffer_size) { - ssize_t retval; - tape->merge_bh_size = 0; - retval = idetape_add_chrdev_write_request(drive, ctl); - if (retval <= 0) - return (retval); - } - } - while (count >= tape->buffer_size) { - ssize_t retval; - if (idetape_copy_stage_from_user(tape, buf, tape->buffer_size)) - ret = -EFAULT; - buf += tape->buffer_size; - count -= tape->buffer_size; - retval = idetape_add_chrdev_write_request(drive, ctl); - actually_written += tape->buffer_size; - if (retval <= 0) - return (retval); - } - if (count) { - actually_written += count; - if (idetape_copy_stage_from_user(tape, buf, count)) + while (done < count) { + size_t todo; + + /* flush if staging buffer is full */ + if (tape->valid == tape->buffer_size && + idetape_queue_rw_tail(drive, REQ_IDETAPE_WRITE, + tape->buffer_size) <= 0) + return rc; + + /* copy in */ + todo = min_t(size_t, count - done, + tape->buffer_size - tape->valid); + if (copy_from_user(tape->cur, buf + done, todo)) ret = -EFAULT; - tape->merge_bh_size += count; + + tape->cur += todo; + tape->valid += todo; + done += todo; } - return ret ? ret : actually_written; + + return ret ? ret : done; } static int idetape_write_filemark(ide_drive_t *drive) @@ -1812,7 +1413,7 @@ static int idetape_chrdev_ioctl(struct inode *inode, struct file *file, idetape_flush_tape_buffers(drive); } if (cmd == MTIOCGET || cmd == MTIOCPOS) { - block_offset = tape->merge_bh_size / + block_offset = tape->valid / (tape->blk_size * tape->user_bs_factor); position = idetape_read_position(drive); if (position < 0) @@ -1960,12 +1561,12 @@ static void idetape_write_release(ide_drive_t *drive, unsigned int minor) idetape_tape_t *tape = drive->driver_data; ide_tape_flush_merge_buffer(drive); - tape->merge_bh = ide_tape_kmalloc_buffer(tape, 1, 0); - if (tape->merge_bh != NULL) { + tape->buf = kmalloc(tape->buffer_size, GFP_KERNEL); + if (tape->buf != NULL) { idetape_pad_zeros(drive, tape->blk_size * (tape->user_bs_factor - 1)); - ide_tape_kfree_buffer(tape); - tape->merge_bh = NULL; + kfree(tape->buf); + tape->buf = NULL; } idetape_write_filemark(drive); idetape_flush_tape_buffers(drive); @@ -2159,8 +1760,6 @@ static void idetape_setup(ide_drive_t *drive, idetape_tape_t *tape, int minor) u16 *ctl = (u16 *)&tape->caps[12]; drive->pc_callback = ide_tape_callback; - drive->pc_update_buffers = idetape_update_buffers; - drive->pc_io_buffers = ide_tape_io_buffers; drive->dev_flags |= IDE_DFLAG_DSC_OVERLAP; @@ -2191,11 +1790,6 @@ static void idetape_setup(ide_drive_t *drive, idetape_tape_t *tape, int minor) tape->buffer_size = *ctl * tape->blk_size; } buffer_size = tape->buffer_size; - tape->pages_per_buffer = buffer_size / PAGE_SIZE; - if (buffer_size % PAGE_SIZE) { - tape->pages_per_buffer++; - tape->excess_bh_size = PAGE_SIZE - buffer_size % PAGE_SIZE; - } /* select the "best" DSC read/write polling freq */ speed = max(*(u16 *)&tape->caps[14], *(u16 *)&tape->caps[8]); @@ -2238,7 +1832,7 @@ static void ide_tape_release(struct device *dev) ide_drive_t *drive = tape->drive; struct gendisk *g = tape->disk; - BUG_ON(tape->merge_bh_size); + BUG_ON(tape->valid); drive->dev_flags &= ~IDE_DFLAG_DSC_OVERLAP; drive->driver_data = NULL; diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index 4aa6223c11b..a0c3e1b2f73 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -385,7 +385,7 @@ out_end: if ((cmd->tf_flags & IDE_TFLAG_FS) == 0) ide_finish_cmd(drive, cmd, stat); else - ide_complete_rq(drive, 0, cmd->rq->nr_sectors << 9); + ide_complete_rq(drive, 0, blk_rq_sectors(cmd->rq) << 9); return ide_stopped; out_err: ide_error_cmd(drive, cmd); @@ -424,7 +424,9 @@ int ide_raw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd, u8 *buf, rq = blk_get_request(drive->queue, READ, __GFP_WAIT); rq->cmd_type = REQ_TYPE_ATA_TASKFILE; - rq->buffer = buf; + + if (cmd->tf_flags & IDE_TFLAG_WRITE) + rq->cmd_flags |= REQ_RW; /* * (ks) We transfer currently only whole sectors. @@ -432,18 +434,20 @@ int ide_raw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd, u8 *buf, * if we would find a solution to transfer any size. * To support special commands like READ LONG. */ - rq->hard_nr_sectors = rq->nr_sectors = nsect; - rq->hard_cur_sectors = rq->current_nr_sectors = nsect; - - if (cmd->tf_flags & IDE_TFLAG_WRITE) - rq->cmd_flags |= REQ_RW; + if (nsect) { + error = blk_rq_map_kern(drive->queue, rq, buf, + nsect * SECTOR_SIZE, __GFP_WAIT); + if (error) + goto put_req; + } rq->special = cmd; cmd->rq = rq; error = blk_execute_rq(drive->queue, NULL, rq, 0); - blk_put_request(rq); +put_req: + blk_put_request(rq); return error; } diff --git a/drivers/ide/pdc202xx_old.c b/drivers/ide/pdc202xx_old.c index 248a54bd238..e24ecc87a9b 100644 --- a/drivers/ide/pdc202xx_old.c +++ b/drivers/ide/pdc202xx_old.c @@ -1,6 +1,6 @@ /* * Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2006-2007 MontaVista Software, Inc. + * Copyright (C) 2006-2007, 2009 MontaVista Software, Inc. * Copyright (C) 2007 Bartlomiej Zolnierkiewicz * * Portions Copyright (C) 1999 Promise Technology, Inc. @@ -177,7 +177,7 @@ static void pdc202xx_dma_start(ide_drive_t *drive) u8 clock = inb(high_16 + 0x11); outb(clock | (hwif->channel ? 0x08 : 0x02), high_16 + 0x11); - word_count = (rq->nr_sectors << 8); + word_count = (blk_rq_sectors(rq) << 8); word_count = (rq_data_dir(rq) == READ) ? word_count | 0x05000000 : word_count | 0x06000000; @@ -227,28 +227,19 @@ somebody_else: return (dma_stat & 4) == 4; /* return 1 if INTR asserted */ } -static void pdc202xx_reset_host (ide_hwif_t *hwif) +static void pdc202xx_reset(ide_drive_t *drive) { + ide_hwif_t *hwif = drive->hwif; unsigned long high_16 = hwif->extra_base - 16; u8 udma_speed_flag = inb(high_16 | 0x001f); + printk(KERN_WARNING "PDC202xx: software reset...\n"); + outb(udma_speed_flag | 0x10, high_16 | 0x001f); mdelay(100); outb(udma_speed_flag & ~0x10, high_16 | 0x001f); mdelay(2000); /* 2 seconds ?! */ - printk(KERN_WARNING "PDC202XX: %s channel reset.\n", - hwif->channel ? "Secondary" : "Primary"); -} - -static void pdc202xx_reset (ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - ide_hwif_t *mate = hwif->mate; - - pdc202xx_reset_host(hwif); - pdc202xx_reset_host(mate); - ide_set_max_pio(drive); } @@ -328,9 +319,8 @@ static const struct ide_dma_ops pdc20246_dma_ops = { .dma_start = ide_dma_start, .dma_end = ide_dma_end, .dma_test_irq = pdc202xx_dma_test_irq, - .dma_lost_irq = pdc202xx_dma_lost_irq, + .dma_lost_irq = ide_dma_lost_irq, .dma_timer_expiry = ide_dma_sff_timer_expiry, - .dma_clear = pdc202xx_reset, .dma_sff_read_status = ide_dma_sff_read_status, }; diff --git a/drivers/ide/tc86c001.c b/drivers/ide/tc86c001.c index b4cf42dc8a6..05a93d6baec 100644 --- a/drivers/ide/tc86c001.c +++ b/drivers/ide/tc86c001.c @@ -112,7 +112,7 @@ static void tc86c001_dma_start(ide_drive_t *drive) ide_hwif_t *hwif = drive->hwif; unsigned long sc_base = hwif->config_data; unsigned long twcr_port = sc_base + (drive->dn ? 0x06 : 0x04); - unsigned long nsectors = hwif->rq->nr_sectors; + unsigned long nsectors = blk_rq_sectors(hwif->rq); /* * We have to manually load the sector count and size into diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c index 564422d2397..5ca76224f6d 100644 --- a/drivers/ide/tx4939ide.c +++ b/drivers/ide/tx4939ide.c @@ -307,7 +307,7 @@ static int tx4939ide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd) tx4939ide_writew(SECTOR_SIZE / 2, base, drive->dn ? TX4939IDE_Xfer_Cnt_2 : TX4939IDE_Xfer_Cnt_1); - tx4939ide_writew(cmd->rq->nr_sectors, base, TX4939IDE_Sec_Cnt); + tx4939ide_writew(blk_rq_sectors(cmd->rq), base, TX4939IDE_Sec_Cnt); return 0; } diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index 56df1cee8fb..3319c2fec28 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -232,7 +232,7 @@ static struct page *read_sb_page(mddev_t *mddev, long offset, target = rdev->sb_start + offset + index * (PAGE_SIZE/512); if (sync_page_io(rdev->bdev, target, - roundup(size, bdev_hardsect_size(rdev->bdev)), + roundup(size, bdev_logical_block_size(rdev->bdev)), page, READ)) { page->index = index; attach_page_buffers(page, NULL); /* so that free_buffer will @@ -287,7 +287,7 @@ static int write_sb_page(struct bitmap *bitmap, struct page *page, int wait) int size = PAGE_SIZE; if (page->index == bitmap->file_pages-1) size = roundup(bitmap->last_page_size, - bdev_hardsect_size(rdev->bdev)); + bdev_logical_block_size(rdev->bdev)); /* Just make sure we aren't corrupting data or * metadata */ diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c index a2e26c24214..75d8081a904 100644 --- a/drivers/md/dm-exception-store.c +++ b/drivers/md/dm-exception-store.c @@ -178,7 +178,7 @@ static int set_chunk_size(struct dm_exception_store *store, } /* Validate the chunk size against the device block size */ - if (chunk_size_ulong % (bdev_hardsect_size(store->cow->bdev) >> 9)) { + if (chunk_size_ulong % (bdev_logical_block_size(store->cow->bdev) >> 9)) { *error = "Chunk size is not a multiple of device blocksize"; return -EINVAL; } diff --git a/drivers/md/dm-log.c b/drivers/md/dm-log.c index be233bc4d91..6fa8ccf91c7 100644 --- a/drivers/md/dm-log.c +++ b/drivers/md/dm-log.c @@ -413,7 +413,8 @@ static int create_log_context(struct dm_dirty_log *log, struct dm_target *ti, * Buffer holds both header and bitset. */ buf_size = dm_round_up((LOG_OFFSET << SECTOR_SHIFT) + - bitset_size, ti->limits.hardsect_size); + bitset_size, + ti->limits.logical_block_size); if (buf_size > dev->bdev->bd_inode->i_size) { DMWARN("log device %s too small: need %llu bytes", diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c index e75c6dd76a9..2662a41337e 100644 --- a/drivers/md/dm-snap-persistent.c +++ b/drivers/md/dm-snap-persistent.c @@ -282,7 +282,7 @@ static int read_header(struct pstore *ps, int *new_snapshot) */ if (!ps->store->chunk_size) { ps->store->chunk_size = max(DM_CHUNK_SIZE_DEFAULT_SECTORS, - bdev_hardsect_size(ps->store->cow->bdev) >> 9); + bdev_logical_block_size(ps->store->cow->bdev) >> 9); ps->store->chunk_mask = ps->store->chunk_size - 1; ps->store->chunk_shift = ffs(ps->store->chunk_size) - 1; chunk_size_supplied = 0; diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 429b50b975d..e9a73bb242b 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -108,7 +108,8 @@ static void combine_restrictions_low(struct io_restrictions *lhs, lhs->max_hw_segments = min_not_zero(lhs->max_hw_segments, rhs->max_hw_segments); - lhs->hardsect_size = max(lhs->hardsect_size, rhs->hardsect_size); + lhs->logical_block_size = max(lhs->logical_block_size, + rhs->logical_block_size); lhs->max_segment_size = min_not_zero(lhs->max_segment_size, rhs->max_segment_size); @@ -509,7 +510,7 @@ void dm_set_device_limits(struct dm_target *ti, struct block_device *bdev) * combine_restrictions_low() */ rs->max_sectors = - min_not_zero(rs->max_sectors, q->max_sectors); + min_not_zero(rs->max_sectors, queue_max_sectors(q)); /* * Check if merge fn is supported. @@ -524,24 +525,25 @@ void dm_set_device_limits(struct dm_target *ti, struct block_device *bdev) rs->max_phys_segments = min_not_zero(rs->max_phys_segments, - q->max_phys_segments); + queue_max_phys_segments(q)); rs->max_hw_segments = - min_not_zero(rs->max_hw_segments, q->max_hw_segments); + min_not_zero(rs->max_hw_segments, queue_max_hw_segments(q)); - rs->hardsect_size = max(rs->hardsect_size, q->hardsect_size); + rs->logical_block_size = max(rs->logical_block_size, + queue_logical_block_size(q)); rs->max_segment_size = - min_not_zero(rs->max_segment_size, q->max_segment_size); + min_not_zero(rs->max_segment_size, queue_max_segment_size(q)); rs->max_hw_sectors = - min_not_zero(rs->max_hw_sectors, q->max_hw_sectors); + min_not_zero(rs->max_hw_sectors, queue_max_hw_sectors(q)); rs->seg_boundary_mask = min_not_zero(rs->seg_boundary_mask, - q->seg_boundary_mask); + queue_segment_boundary(q)); - rs->bounce_pfn = min_not_zero(rs->bounce_pfn, q->bounce_pfn); + rs->bounce_pfn = min_not_zero(rs->bounce_pfn, queue_bounce_pfn(q)); rs->no_cluster |= !test_bit(QUEUE_FLAG_CLUSTER, &q->queue_flags); } @@ -683,8 +685,8 @@ static void check_for_valid_limits(struct io_restrictions *rs) rs->max_phys_segments = MAX_PHYS_SEGMENTS; if (!rs->max_hw_segments) rs->max_hw_segments = MAX_HW_SEGMENTS; - if (!rs->hardsect_size) - rs->hardsect_size = 1 << SECTOR_SHIFT; + if (!rs->logical_block_size) + rs->logical_block_size = 1 << SECTOR_SHIFT; if (!rs->max_segment_size) rs->max_segment_size = MAX_SEGMENT_SIZE; if (!rs->seg_boundary_mask) @@ -912,13 +914,13 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q) * restrictions. */ blk_queue_max_sectors(q, t->limits.max_sectors); - q->max_phys_segments = t->limits.max_phys_segments; - q->max_hw_segments = t->limits.max_hw_segments; - q->hardsect_size = t->limits.hardsect_size; - q->max_segment_size = t->limits.max_segment_size; - q->max_hw_sectors = t->limits.max_hw_sectors; - q->seg_boundary_mask = t->limits.seg_boundary_mask; - q->bounce_pfn = t->limits.bounce_pfn; + blk_queue_max_phys_segments(q, t->limits.max_phys_segments); + blk_queue_max_hw_segments(q, t->limits.max_hw_segments); + blk_queue_logical_block_size(q, t->limits.logical_block_size); + blk_queue_max_segment_size(q, t->limits.max_segment_size); + blk_queue_max_hw_sectors(q, t->limits.max_hw_sectors); + blk_queue_segment_boundary(q, t->limits.seg_boundary_mask); + blk_queue_bounce_limit(q, t->limits.bounce_pfn); if (t->limits.no_cluster) queue_flag_clear_unlocked(QUEUE_FLAG_CLUSTER, q); diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 424f7b048c3..3fd8b1e6548 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -20,7 +20,8 @@ #include <linux/idr.h> #include <linux/hdreg.h> #include <linux/blktrace_api.h> -#include <trace/block.h> + +#include <trace/events/block.h> #define DM_MSG_PREFIX "core" @@ -53,8 +54,6 @@ struct dm_target_io { union map_info info; }; -DEFINE_TRACE(block_bio_complete); - /* * For request-based dm. * One of these is allocated per request. @@ -656,8 +655,7 @@ static void __map_bio(struct dm_target *ti, struct bio *clone, /* the bio has been remapped so dispatch it */ trace_block_remap(bdev_get_queue(clone->bi_bdev), clone, - tio->io->bio->bi_bdev->bd_dev, - clone->bi_sector, sector); + tio->io->bio->bi_bdev->bd_dev, sector); generic_make_request(clone); } else if (r < 0 || r == DM_MAPIO_REQUEUE) { diff --git a/drivers/md/linear.c b/drivers/md/linear.c index 7a36e38393a..64f1f3e046e 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -146,7 +146,7 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks) * a one page request is never in violation. */ if (rdev->bdev->bd_disk->queue->merge_bvec_fn && - mddev->queue->max_sectors > (PAGE_SIZE>>9)) + queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9)) blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9); disk->num_sectors = rdev->sectors; diff --git a/drivers/md/md.c b/drivers/md/md.c index 641b211fe3f..20f6ac33834 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1202,7 +1202,7 @@ static int super_1_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version) atomic_set(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read)); rdev->sb_size = le32_to_cpu(sb->max_dev) * 2 + 256; - bmask = queue_hardsect_size(rdev->bdev->bd_disk->queue)-1; + bmask = queue_logical_block_size(rdev->bdev->bd_disk->queue)-1; if (rdev->sb_size & bmask) rdev->sb_size = (rdev->sb_size | bmask) + 1; diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index 41ced0cbe82..4ee31aa13c4 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -303,7 +303,7 @@ static int multipath_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) * merge_bvec_fn will be involved in multipath.) */ if (q->merge_bvec_fn && - mddev->queue->max_sectors > (PAGE_SIZE>>9)) + queue_max_sectors(q) > (PAGE_SIZE>>9)) blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9); conf->working_disks++; @@ -467,7 +467,7 @@ static int multipath_run (mddev_t *mddev) * violating it, not that we ever expect a device with * a merge_bvec_fn to be involved in multipath */ if (rdev->bdev->bd_disk->queue->merge_bvec_fn && - mddev->queue->max_sectors > (PAGE_SIZE>>9)) + queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9)) blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9); if (!test_bit(Faulty, &rdev->flags)) diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index c08d7559be5..925507e7d67 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -144,7 +144,7 @@ static int create_strip_zones (mddev_t *mddev) */ if (rdev1->bdev->bd_disk->queue->merge_bvec_fn && - mddev->queue->max_sectors > (PAGE_SIZE>>9)) + queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9)) blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9); if (!smallest || (rdev1->sectors < smallest->sectors)) diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 36df9109cde..e23758b4a34 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1130,7 +1130,7 @@ static int raid1_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) * a one page request is never in violation. */ if (rdev->bdev->bd_disk->queue->merge_bvec_fn && - mddev->queue->max_sectors > (PAGE_SIZE>>9)) + queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9)) blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9); p->head_position = 0; @@ -1996,7 +1996,7 @@ static int run(mddev_t *mddev) * a one page request is never in violation. */ if (rdev->bdev->bd_disk->queue->merge_bvec_fn && - mddev->queue->max_sectors > (PAGE_SIZE>>9)) + queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9)) blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9); disk->head_position = 0; diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 499620afb44..750550c1166 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1158,8 +1158,8 @@ static int raid10_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) * a one page request is never in violation. */ if (rdev->bdev->bd_disk->queue->merge_bvec_fn && - mddev->queue->max_sectors > (PAGE_SIZE>>9)) - mddev->queue->max_sectors = (PAGE_SIZE>>9); + queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9)) + blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9); p->head_position = 0; rdev->raid_disk = mirror; @@ -2145,8 +2145,8 @@ static int run(mddev_t *mddev) * a one page request is never in violation. */ if (rdev->bdev->bd_disk->queue->merge_bvec_fn && - mddev->queue->max_sectors > (PAGE_SIZE>>9)) - mddev->queue->max_sectors = (PAGE_SIZE>>9); + queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9)) + blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9); disk->head_position = 0; } diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 5d400aef8d9..bef87669823 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -362,7 +362,7 @@ static void raid5_unplug_device(struct request_queue *q); static struct stripe_head * get_active_stripe(raid5_conf_t *conf, sector_t sector, - int previous, int noblock) + int previous, int noblock, int noquiesce) { struct stripe_head *sh; @@ -372,7 +372,7 @@ get_active_stripe(raid5_conf_t *conf, sector_t sector, do { wait_event_lock_irq(conf->wait_for_stripe, - conf->quiesce == 0, + conf->quiesce == 0 || noquiesce, conf->device_lock, /* nothing */); sh = __find_stripe(conf, sector, conf->generation - previous); if (!sh) { @@ -2671,7 +2671,7 @@ static void handle_stripe_expansion(raid5_conf_t *conf, struct stripe_head *sh, sector_t bn = compute_blocknr(sh, i, 1); sector_t s = raid5_compute_sector(conf, bn, 0, &dd_idx, NULL); - sh2 = get_active_stripe(conf, s, 0, 1); + sh2 = get_active_stripe(conf, s, 0, 1, 1); if (sh2 == NULL) /* so far only the early blocks of this stripe * have been requested. When later blocks @@ -2944,7 +2944,7 @@ static bool handle_stripe5(struct stripe_head *sh) /* Finish reconstruct operations initiated by the expansion process */ if (sh->reconstruct_state == reconstruct_state_result) { struct stripe_head *sh2 - = get_active_stripe(conf, sh->sector, 1, 1); + = get_active_stripe(conf, sh->sector, 1, 1, 1); if (sh2 && test_bit(STRIPE_EXPAND_SOURCE, &sh2->state)) { /* sh cannot be written until sh2 has been read. * so arrange for sh to be delayed a little @@ -3189,7 +3189,7 @@ static bool handle_stripe6(struct stripe_head *sh, struct page *tmp_page) if (s.expanded && test_bit(STRIPE_EXPANDING, &sh->state)) { struct stripe_head *sh2 - = get_active_stripe(conf, sh->sector, 1, 1); + = get_active_stripe(conf, sh->sector, 1, 1, 1); if (sh2 && test_bit(STRIPE_EXPAND_SOURCE, &sh2->state)) { /* sh cannot be written until sh2 has been read. * so arrange for sh to be delayed a little @@ -3288,7 +3288,7 @@ static void unplug_slaves(mddev_t *mddev) int i; rcu_read_lock(); - for (i=0; i<mddev->raid_disks; i++) { + for (i = 0; i < conf->raid_disks; i++) { mdk_rdev_t *rdev = rcu_dereference(conf->disks[i].rdev); if (rdev && !test_bit(Faulty, &rdev->flags) && atomic_read(&rdev->nr_pending)) { struct request_queue *r_queue = bdev_get_queue(rdev->bdev); @@ -3463,10 +3463,10 @@ static int bio_fits_rdev(struct bio *bi) { struct request_queue *q = bdev_get_queue(bi->bi_bdev); - if ((bi->bi_size>>9) > q->max_sectors) + if ((bi->bi_size>>9) > queue_max_sectors(q)) return 0; blk_recount_segments(q, bi); - if (bi->bi_phys_segments > q->max_phys_segments) + if (bi->bi_phys_segments > queue_max_phys_segments(q)) return 0; if (q->merge_bvec_fn) @@ -3675,7 +3675,7 @@ static int make_request(struct request_queue *q, struct bio * bi) (unsigned long long)logical_sector); sh = get_active_stripe(conf, new_sector, previous, - (bi->bi_rw&RWA_MASK)); + (bi->bi_rw&RWA_MASK), 0); if (sh) { if (unlikely(previous)) { /* expansion might have moved on while waiting for a @@ -3873,7 +3873,7 @@ static sector_t reshape_request(mddev_t *mddev, sector_t sector_nr, int *skipped for (i = 0; i < reshape_sectors; i += STRIPE_SECTORS) { int j; int skipped = 0; - sh = get_active_stripe(conf, stripe_addr+i, 0, 0); + sh = get_active_stripe(conf, stripe_addr+i, 0, 0, 1); set_bit(STRIPE_EXPANDING, &sh->state); atomic_inc(&conf->reshape_stripes); /* If any of this stripe is beyond the end of the old @@ -3916,13 +3916,13 @@ static sector_t reshape_request(mddev_t *mddev, sector_t sector_nr, int *skipped raid5_compute_sector(conf, stripe_addr*(new_data_disks), 1, &dd_idx, NULL); last_sector = - raid5_compute_sector(conf, ((stripe_addr+conf->chunk_size/512) + raid5_compute_sector(conf, ((stripe_addr+reshape_sectors) *(new_data_disks) - 1), 1, &dd_idx, NULL); if (last_sector >= mddev->dev_sectors) last_sector = mddev->dev_sectors - 1; while (first_sector <= last_sector) { - sh = get_active_stripe(conf, first_sector, 1, 0); + sh = get_active_stripe(conf, first_sector, 1, 0, 1); set_bit(STRIPE_EXPAND_SOURCE, &sh->state); set_bit(STRIPE_HANDLE, &sh->state); release_stripe(sh); @@ -4022,9 +4022,9 @@ static inline sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *ski bitmap_cond_end_sync(mddev->bitmap, sector_nr); - sh = get_active_stripe(conf, sector_nr, 0, 1); + sh = get_active_stripe(conf, sector_nr, 0, 1, 0); if (sh == NULL) { - sh = get_active_stripe(conf, sector_nr, 0, 0); + sh = get_active_stripe(conf, sector_nr, 0, 0, 0); /* make sure we don't swamp the stripe cache if someone else * is trying to get access */ @@ -4034,7 +4034,7 @@ static inline sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *ski * We don't need to check the 'failed' flag as when that gets set, * recovery aborts. */ - for (i=0; i<mddev->raid_disks; i++) + for (i = 0; i < conf->raid_disks; i++) if (conf->disks[i].rdev == NULL) still_degraded = 1; @@ -4086,7 +4086,7 @@ static int retry_aligned_read(raid5_conf_t *conf, struct bio *raid_bio) /* already done this stripe */ continue; - sh = get_active_stripe(conf, sector, 0, 1); + sh = get_active_stripe(conf, sector, 0, 1, 0); if (!sh) { /* failed to get a stripe - must wait */ diff --git a/drivers/media/video/ivtv/ivtv-queue.c b/drivers/media/video/ivtv/ivtv-queue.c index ff7b7deded4..7fde36e6d22 100644 --- a/drivers/media/video/ivtv/ivtv-queue.c +++ b/drivers/media/video/ivtv/ivtv-queue.c @@ -230,7 +230,8 @@ int ivtv_stream_alloc(struct ivtv_stream *s) return -ENOMEM; } if (ivtv_might_use_dma(s)) { - s->sg_handle = pci_map_single(itv->pdev, s->sg_dma, sizeof(struct ivtv_sg_element), s->dma); + s->sg_handle = pci_map_single(itv->pdev, s->sg_dma, + sizeof(struct ivtv_sg_element), PCI_DMA_TODEVICE); ivtv_stream_sync_for_cpu(s); } diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c index de143deb06f..7847bbc1440 100644 --- a/drivers/memstick/core/mspro_block.c +++ b/drivers/memstick/core/mspro_block.c @@ -672,15 +672,14 @@ try_again: msb->req_sg); if (!msb->seg_count) { - chunk = __blk_end_request(msb->block_req, -ENOMEM, - blk_rq_cur_bytes(msb->block_req)); + chunk = __blk_end_request_cur(msb->block_req, -ENOMEM); continue; } - t_sec = msb->block_req->sector << 9; + t_sec = blk_rq_pos(msb->block_req) << 9; sector_div(t_sec, msb->page_size); - count = msb->block_req->nr_sectors << 9; + count = blk_rq_bytes(msb->block_req); count /= msb->page_size; param.system = msb->system; @@ -705,8 +704,8 @@ try_again: return 0; } - dev_dbg(&card->dev, "elv_next\n"); - msb->block_req = elv_next_request(msb->queue); + dev_dbg(&card->dev, "blk_fetch\n"); + msb->block_req = blk_fetch_request(msb->queue); if (!msb->block_req) { dev_dbg(&card->dev, "issue end\n"); return -EAGAIN; @@ -745,7 +744,7 @@ static int mspro_block_complete_req(struct memstick_dev *card, int error) t_len *= msb->page_size; } } else - t_len = msb->block_req->nr_sectors << 9; + t_len = blk_rq_bytes(msb->block_req); dev_dbg(&card->dev, "transferred %x (%d)\n", t_len, error); @@ -825,8 +824,8 @@ static void mspro_block_submit_req(struct request_queue *q) return; if (msb->eject) { - while ((req = elv_next_request(q)) != NULL) - __blk_end_request(req, -ENODEV, blk_rq_bytes(req)); + while ((req = blk_fetch_request(q)) != NULL) + __blk_end_request_all(req, -ENODEV); return; } @@ -1243,7 +1242,7 @@ static int mspro_block_init_disk(struct memstick_dev *card) sprintf(msb->disk->disk_name, "mspblk%d", disk_id); - blk_queue_hardsect_size(msb->queue, msb->page_size); + blk_queue_logical_block_size(msb->queue, msb->page_size); capacity = be16_to_cpu(sys_info->user_block_count); capacity *= be16_to_cpu(sys_info->block_size); diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c index a9019f081b9..79f5433359f 100644 --- a/drivers/message/fusion/mptsas.c +++ b/drivers/message/fusion/mptsas.c @@ -1277,8 +1277,8 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, /* do we need to support multiple segments? */ if (req->bio->bi_vcnt > 1 || rsp->bio->bi_vcnt > 1) { printk(MYIOC_s_ERR_FMT "%s: multiple segments req %u %u, rsp %u %u\n", - ioc->name, __func__, req->bio->bi_vcnt, req->data_len, - rsp->bio->bi_vcnt, rsp->data_len); + ioc->name, __func__, req->bio->bi_vcnt, blk_rq_bytes(req), + rsp->bio->bi_vcnt, blk_rq_bytes(rsp)); return -EINVAL; } @@ -1295,7 +1295,7 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, smpreq = (SmpPassthroughRequest_t *)mf; memset(smpreq, 0, sizeof(*smpreq)); - smpreq->RequestDataLength = cpu_to_le16(req->data_len - 4); + smpreq->RequestDataLength = cpu_to_le16(blk_rq_bytes(req) - 4); smpreq->Function = MPI_FUNCTION_SMP_PASSTHROUGH; if (rphy) @@ -1321,10 +1321,10 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, MPI_SGE_FLAGS_END_OF_BUFFER | MPI_SGE_FLAGS_DIRECTION | mpt_addr_size()) << MPI_SGE_FLAGS_SHIFT; - flagsLength |= (req->data_len - 4); + flagsLength |= (blk_rq_bytes(req) - 4); dma_addr_out = pci_map_single(ioc->pcidev, bio_data(req->bio), - req->data_len, PCI_DMA_BIDIRECTIONAL); + blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL); if (!dma_addr_out) goto put_mf; mpt_add_sge(psge, flagsLength, dma_addr_out); @@ -1332,9 +1332,9 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, /* response */ flagsLength = MPT_SGE_FLAGS_SSIMPLE_READ; - flagsLength |= rsp->data_len + 4; + flagsLength |= blk_rq_bytes(rsp) + 4; dma_addr_in = pci_map_single(ioc->pcidev, bio_data(rsp->bio), - rsp->data_len, PCI_DMA_BIDIRECTIONAL); + blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL); if (!dma_addr_in) goto unmap; mpt_add_sge(psge, flagsLength, dma_addr_in); @@ -1357,8 +1357,8 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, smprep = (SmpPassthroughReply_t *)ioc->sas_mgmt.reply; memcpy(req->sense, smprep, sizeof(*smprep)); req->sense_len = sizeof(*smprep); - req->data_len = 0; - rsp->data_len -= smprep->ResponseDataLength; + req->resid_len = 0; + rsp->resid_len -= smprep->ResponseDataLength; } else { printk(MYIOC_s_ERR_FMT "%s: smp passthru reply failed to be returned\n", ioc->name, __func__); @@ -1366,10 +1366,10 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, } unmap: if (dma_addr_out) - pci_unmap_single(ioc->pcidev, dma_addr_out, req->data_len, + pci_unmap_single(ioc->pcidev, dma_addr_out, blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL); if (dma_addr_in) - pci_unmap_single(ioc->pcidev, dma_addr_in, rsp->data_len, + pci_unmap_single(ioc->pcidev, dma_addr_in, blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL); put_mf: if (mf) diff --git a/drivers/message/i2o/i2o_block.c b/drivers/message/i2o/i2o_block.c index a443e136dc4..335d4c78a77 100644 --- a/drivers/message/i2o/i2o_block.c +++ b/drivers/message/i2o/i2o_block.c @@ -426,15 +426,9 @@ static void i2o_block_end_request(struct request *req, int error, struct request_queue *q = req->q; unsigned long flags; - if (blk_end_request(req, error, nr_bytes)) { - int leftover = (req->hard_nr_sectors << KERNEL_SECTOR_SHIFT); - - if (blk_pc_request(req)) - leftover = req->data_len; - + if (blk_end_request(req, error, nr_bytes)) if (error) - blk_end_request(req, -EIO, leftover); - } + blk_end_request_all(req, -EIO); spin_lock_irqsave(q->queue_lock, flags); @@ -761,7 +755,7 @@ static int i2o_block_transfer(struct request *req) break; case CACHE_SMARTFETCH: - if (req->nr_sectors > 16) + if (blk_rq_sectors(req) > 16) ctl_flags = 0x201F0008; else ctl_flags = 0x001F0000; @@ -781,13 +775,13 @@ static int i2o_block_transfer(struct request *req) ctl_flags = 0x001F0010; break; case CACHE_SMARTBACK: - if (req->nr_sectors > 16) + if (blk_rq_sectors(req) > 16) ctl_flags = 0x001F0004; else ctl_flags = 0x001F0010; break; case CACHE_SMARTTHROUGH: - if (req->nr_sectors > 16) + if (blk_rq_sectors(req) > 16) ctl_flags = 0x001F0004; else ctl_flags = 0x001F0010; @@ -800,8 +794,9 @@ static int i2o_block_transfer(struct request *req) if (c->adaptec) { u8 cmd[10]; u32 scsi_flags; - u16 hwsec = queue_hardsect_size(req->q) >> KERNEL_SECTOR_SHIFT; + u16 hwsec; + hwsec = queue_logical_block_size(req->q) >> KERNEL_SECTOR_SHIFT; memset(cmd, 0, 10); sgl_offset = SGL_OFFSET_12; @@ -827,22 +822,22 @@ static int i2o_block_transfer(struct request *req) *mptr++ = cpu_to_le32(scsi_flags); - *((u32 *) & cmd[2]) = cpu_to_be32(req->sector * hwsec); - *((u16 *) & cmd[7]) = cpu_to_be16(req->nr_sectors * hwsec); + *((u32 *) & cmd[2]) = cpu_to_be32(blk_rq_pos(req) * hwsec); + *((u16 *) & cmd[7]) = cpu_to_be16(blk_rq_sectors(req) * hwsec); memcpy(mptr, cmd, 10); mptr += 4; - *mptr++ = cpu_to_le32(req->nr_sectors << KERNEL_SECTOR_SHIFT); + *mptr++ = cpu_to_le32(blk_rq_bytes(req)); } else #endif { msg->u.head[1] = cpu_to_le32(cmd | HOST_TID << 12 | tid); *mptr++ = cpu_to_le32(ctl_flags); - *mptr++ = cpu_to_le32(req->nr_sectors << KERNEL_SECTOR_SHIFT); + *mptr++ = cpu_to_le32(blk_rq_bytes(req)); *mptr++ = - cpu_to_le32((u32) (req->sector << KERNEL_SECTOR_SHIFT)); + cpu_to_le32((u32) (blk_rq_pos(req) << KERNEL_SECTOR_SHIFT)); *mptr++ = - cpu_to_le32(req->sector >> (32 - KERNEL_SECTOR_SHIFT)); + cpu_to_le32(blk_rq_pos(req) >> (32 - KERNEL_SECTOR_SHIFT)); } if (!i2o_block_sglist_alloc(c, ireq, &mptr)) { @@ -883,7 +878,7 @@ static void i2o_block_request_fn(struct request_queue *q) struct request *req; while (!blk_queue_plugged(q)) { - req = elv_next_request(q); + req = blk_peek_request(q); if (!req) break; @@ -896,7 +891,7 @@ static void i2o_block_request_fn(struct request_queue *q) if (queue_depth < I2O_BLOCK_MAX_OPEN_REQUESTS) { if (!i2o_block_transfer(req)) { - blkdev_dequeue_request(req); + blk_start_request(req); continue; } else osm_info("transfer error\n"); @@ -922,8 +917,10 @@ static void i2o_block_request_fn(struct request_queue *q) blk_stop_queue(q); break; } - } else - end_request(req, 0); + } else { + blk_start_request(req); + __blk_end_request_all(req, -EIO); + } } }; @@ -1082,7 +1079,7 @@ static int i2o_block_probe(struct device *dev) */ if (!i2o_parm_field_get(i2o_dev, 0x0004, 1, &blocksize, 4) || !i2o_parm_field_get(i2o_dev, 0x0000, 3, &blocksize, 4)) { - blk_queue_hardsect_size(queue, le32_to_cpu(blocksize)); + blk_queue_logical_block_size(queue, le32_to_cpu(blocksize)); } else osm_warn("unable to get blocksize of %s\n", gd->disk_name); diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index b25e9b6516a..98ffc41eaf2 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -243,7 +243,7 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req) brq.mrq.cmd = &brq.cmd; brq.mrq.data = &brq.data; - brq.cmd.arg = req->sector; + brq.cmd.arg = blk_rq_pos(req); if (!mmc_card_blockaddr(card)) brq.cmd.arg <<= 9; brq.cmd.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_ADTC; @@ -251,7 +251,7 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req) brq.stop.opcode = MMC_STOP_TRANSMISSION; brq.stop.arg = 0; brq.stop.flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC; - brq.data.blocks = req->nr_sectors; + brq.data.blocks = blk_rq_sectors(req); /* * The block layer doesn't support all sector count @@ -301,7 +301,7 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req) * Adjust the sg list so it is the same size as the * request. */ - if (brq.data.blocks != req->nr_sectors) { + if (brq.data.blocks != blk_rq_sectors(req)) { int i, data_size = brq.data.blocks << 9; struct scatterlist *sg; @@ -352,8 +352,8 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req) printk(KERN_ERR "%s: error %d transferring data," " sector %u, nr %u, card status %#x\n", req->rq_disk->disk_name, brq.data.error, - (unsigned)req->sector, - (unsigned)req->nr_sectors, status); + (unsigned)blk_rq_pos(req), + (unsigned)blk_rq_sectors(req), status); } if (brq.stop.error) { @@ -521,7 +521,7 @@ static struct mmc_blk_data *mmc_blk_alloc(struct mmc_card *card) sprintf(md->disk->disk_name, "mmcblk%d", devidx); - blk_queue_hardsect_size(md->queue.queue, 512); + blk_queue_logical_block_size(md->queue.queue, 512); if (!mmc_card_sd(card) && mmc_card_blockaddr(card)) { /* diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c index 7a72e75d5c6..49e582356c6 100644 --- a/drivers/mmc/card/queue.c +++ b/drivers/mmc/card/queue.c @@ -55,7 +55,7 @@ static int mmc_queue_thread(void *d) spin_lock_irq(q->queue_lock); set_current_state(TASK_INTERRUPTIBLE); if (!blk_queue_plugged(q)) - req = elv_next_request(q); + req = blk_fetch_request(q); mq->req = req; spin_unlock_irq(q->queue_lock); @@ -88,16 +88,11 @@ static void mmc_request(struct request_queue *q) { struct mmc_queue *mq = q->queuedata; struct request *req; - int ret; if (!mq) { printk(KERN_ERR "MMC: killing requests for dead queue\n"); - while ((req = elv_next_request(q)) != NULL) { - do { - ret = __blk_end_request(req, -EIO, - blk_rq_cur_bytes(req)); - } while (ret); - } + while ((req = blk_fetch_request(q)) != NULL) + __blk_end_request_all(req, -EIO); return; } diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c index c643d0fe118..b56d72ff06e 100644 --- a/drivers/mmc/host/mvsdio.c +++ b/drivers/mmc/host/mvsdio.c @@ -64,6 +64,31 @@ static int mvsd_setup_data(struct mvsd_host *host, struct mmc_data *data) unsigned int tmout; int tmout_index; + /* + * Hardware weirdness. The FIFO_EMPTY bit of the HW_STATE + * register is sometimes not set before a while when some + * "unusual" data block sizes are used (such as with the SWITCH + * command), even despite the fact that the XFER_DONE interrupt + * was raised. And if another data transfer starts before + * this bit comes to good sense (which eventually happens by + * itself) then the new transfer simply fails with a timeout. + */ + if (!(mvsd_read(MVSD_HW_STATE) & (1 << 13))) { + unsigned long t = jiffies + HZ; + unsigned int hw_state, count = 0; + do { + if (time_after(jiffies, t)) { + dev_warn(host->dev, "FIFO_EMPTY bit missing\n"); + break; + } + hw_state = mvsd_read(MVSD_HW_STATE); + count++; + } while (!(hw_state & (1 << 13))); + dev_dbg(host->dev, "*** wait for FIFO_EMPTY bit " + "(hw=0x%04x, count=%d, jiffies=%ld)\n", + hw_state, count, jiffies - (t - HZ)); + } + /* If timeout=0 then maximum timeout index is used. */ tmout = DIV_ROUND_UP(data->timeout_ns, host->ns_per_clk); tmout += data->timeout_clks; @@ -620,9 +645,18 @@ static void mvsd_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) if (ios->bus_width == MMC_BUS_WIDTH_4) ctrl_reg |= MVSD_HOST_CTRL_DATA_WIDTH_4_BITS; + /* + * The HI_SPEED_EN bit is causing trouble with many (but not all) + * high speed SD, SDHC and SDIO cards. Not enabling that bit + * makes all cards work. So let's just ignore that bit for now + * and revisit this issue if problems for not enabling this bit + * are ever reported. + */ +#if 0 if (ios->timing == MMC_TIMING_MMC_HS || ios->timing == MMC_TIMING_SD_HS) ctrl_reg |= MVSD_HOST_CTRL_HI_SPEED_EN; +#endif host->ctrl = ctrl_reg; mvsd_write(MVSD_HOST_CTRL, ctrl_reg); @@ -882,3 +916,4 @@ module_param(nodma, int, 0); MODULE_AUTHOR("Maen Suleiman, Nicolas Pitre"); MODULE_DESCRIPTION("Marvell MMC,SD,SDIO Host Controller driver"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:mvsdio"); diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c index b4a615c55f2..f4cbe473670 100644 --- a/drivers/mmc/host/mxcmmc.c +++ b/drivers/mmc/host/mxcmmc.c @@ -140,6 +140,8 @@ struct mxcmci_host { struct work_struct datawork; }; +static void mxcmci_set_clk_rate(struct mxcmci_host *host, unsigned int clk_ios); + static inline int mxcmci_use_dma(struct mxcmci_host *host) { return host->do_dma; @@ -160,7 +162,7 @@ static void mxcmci_softreset(struct mxcmci_host *host) writew(0xff, host->base + MMC_REG_RES_TO); } -static void mxcmci_setup_data(struct mxcmci_host *host, struct mmc_data *data) +static int mxcmci_setup_data(struct mxcmci_host *host, struct mmc_data *data) { unsigned int nob = data->blocks; unsigned int blksz = data->blksz; @@ -168,6 +170,7 @@ static void mxcmci_setup_data(struct mxcmci_host *host, struct mmc_data *data) #ifdef HAS_DMA struct scatterlist *sg; int i; + int ret; #endif if (data->flags & MMC_DATA_STREAM) nob = 0xffff; @@ -183,7 +186,7 @@ static void mxcmci_setup_data(struct mxcmci_host *host, struct mmc_data *data) for_each_sg(data->sg, sg, data->sg_len, i) { if (sg->offset & 3 || sg->length & 3) { host->do_dma = 0; - return; + return 0; } } @@ -192,23 +195,30 @@ static void mxcmci_setup_data(struct mxcmci_host *host, struct mmc_data *data) host->dma_nents = dma_map_sg(mmc_dev(host->mmc), data->sg, data->sg_len, host->dma_dir); - imx_dma_setup_sg(host->dma, data->sg, host->dma_nents, datasize, - host->res->start + MMC_REG_BUFFER_ACCESS, - DMA_MODE_READ); + ret = imx_dma_setup_sg(host->dma, data->sg, host->dma_nents, + datasize, + host->res->start + MMC_REG_BUFFER_ACCESS, + DMA_MODE_READ); } else { host->dma_dir = DMA_TO_DEVICE; host->dma_nents = dma_map_sg(mmc_dev(host->mmc), data->sg, data->sg_len, host->dma_dir); - imx_dma_setup_sg(host->dma, data->sg, host->dma_nents, datasize, - host->res->start + MMC_REG_BUFFER_ACCESS, - DMA_MODE_WRITE); + ret = imx_dma_setup_sg(host->dma, data->sg, host->dma_nents, + datasize, + host->res->start + MMC_REG_BUFFER_ACCESS, + DMA_MODE_WRITE); } + if (ret) { + dev_err(mmc_dev(host->mmc), "failed to setup DMA : %d\n", ret); + return ret; + } wmb(); imx_dma_enable(host->dma); #endif /* HAS_DMA */ + return 0; } static int mxcmci_start_cmd(struct mxcmci_host *host, struct mmc_command *cmd, @@ -345,8 +355,11 @@ static int mxcmci_poll_status(struct mxcmci_host *host, u32 mask) stat = readl(host->base + MMC_REG_STATUS); if (stat & STATUS_ERR_MASK) return stat; - if (time_after(jiffies, timeout)) + if (time_after(jiffies, timeout)) { + mxcmci_softreset(host); + mxcmci_set_clk_rate(host, host->clock); return STATUS_TIME_OUT_READ; + } if (stat & mask) return 0; cpu_relax(); @@ -531,6 +544,7 @@ static void mxcmci_request(struct mmc_host *mmc, struct mmc_request *req) { struct mxcmci_host *host = mmc_priv(mmc); unsigned int cmdat = host->cmdat; + int error; WARN_ON(host->req != NULL); @@ -540,7 +554,12 @@ static void mxcmci_request(struct mmc_host *mmc, struct mmc_request *req) host->do_dma = 1; #endif if (req->data) { - mxcmci_setup_data(host, req->data); + error = mxcmci_setup_data(host, req->data); + if (error) { + req->cmd->error = error; + goto out; + } + cmdat |= CMD_DAT_CONT_DATA_ENABLE; @@ -548,7 +567,9 @@ static void mxcmci_request(struct mmc_host *mmc, struct mmc_request *req) cmdat |= CMD_DAT_CONT_WRITE; } - if (mxcmci_start_cmd(host, req->cmd, cmdat)) + error = mxcmci_start_cmd(host, req->cmd, cmdat); +out: + if (error) mxcmci_finish_request(host, req); } @@ -724,7 +745,9 @@ static int mxcmci_probe(struct platform_device *pdev) goto out_clk_put; } - mmc->f_min = clk_get_rate(host->clk) >> 7; + mmc->f_min = clk_get_rate(host->clk) >> 16; + if (mmc->f_min < 400000) + mmc->f_min = 400000; mmc->f_max = clk_get_rate(host->clk) >> 1; /* recommended in data sheet */ diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c index bfa25c01c87..dceb5ee3bda 100644 --- a/drivers/mmc/host/omap.c +++ b/drivers/mmc/host/omap.c @@ -822,7 +822,7 @@ static irqreturn_t mmc_omap_irq(int irq, void *dev_id) del_timer(&host->cmd_abort_timer); host->abort = 1; OMAP_MMC_WRITE(host, IE, 0); - disable_irq(host->irq); + disable_irq_nosync(host->irq); schedule_work(&host->cmd_abort_work); return IRQ_HANDLED; } diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index e62a22a7f00..c40cb96255a 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -680,7 +680,7 @@ static void mmc_omap_dma_cb(int lch, u16 ch_status, void *data) host->dma_ch = -1; /* * DMA Callback: run in interrupt context. - * mutex_unlock will through a kernel warning if used. + * mutex_unlock will throw a kernel warning if used. */ up(&host->sem); } diff --git a/drivers/mmc/host/sdhci-of.c b/drivers/mmc/host/sdhci-of.c index 3ff4ac3abe8..128c614d11a 100644 --- a/drivers/mmc/host/sdhci-of.c +++ b/drivers/mmc/host/sdhci-of.c @@ -55,7 +55,13 @@ static u32 esdhc_readl(struct sdhci_host *host, int reg) static u16 esdhc_readw(struct sdhci_host *host, int reg) { - return in_be16(host->ioaddr + (reg ^ 0x2)); + u16 ret; + + if (unlikely(reg == SDHCI_HOST_VERSION)) + ret = in_be16(host->ioaddr + reg); + else + ret = in_be16(host->ioaddr + (reg ^ 0x2)); + return ret; } static u8 esdhc_readb(struct sdhci_host *host, int reg) @@ -277,6 +283,7 @@ static int __devexit sdhci_of_remove(struct of_device *ofdev) static const struct of_device_id sdhci_of_match[] = { { .compatible = "fsl,mpc8379-esdhc", .data = &sdhci_esdhc, }, { .compatible = "fsl,mpc8536-esdhc", .data = &sdhci_esdhc, }, + { .compatible = "fsl,esdhc", .data = &sdhci_esdhc, }, { .compatible = "generic-sdhci", }, {}, }; diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index a49a9c8f2cb..aaac3b6800b 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -47,40 +47,41 @@ static int do_blktrans_request(struct mtd_blktrans_ops *tr, unsigned long block, nsect; char *buf; - block = req->sector << 9 >> tr->blkshift; - nsect = req->current_nr_sectors << 9 >> tr->blkshift; + block = blk_rq_pos(req) << 9 >> tr->blkshift; + nsect = blk_rq_cur_bytes(req) >> tr->blkshift; buf = req->buffer; if (req->cmd_type == REQ_TYPE_LINUX_BLOCK && req->cmd[0] == REQ_LB_OP_DISCARD) - return !tr->discard(dev, block, nsect); + return tr->discard(dev, block, nsect); if (!blk_fs_request(req)) - return 0; + return -EIO; - if (req->sector + req->current_nr_sectors > get_capacity(req->rq_disk)) - return 0; + if (blk_rq_pos(req) + blk_rq_cur_sectors(req) > + get_capacity(req->rq_disk)) + return -EIO; switch(rq_data_dir(req)) { case READ: for (; nsect > 0; nsect--, block++, buf += tr->blksize) if (tr->readsect(dev, block, buf)) - return 0; - return 1; + return -EIO; + return 0; case WRITE: if (!tr->writesect) - return 0; + return -EIO; for (; nsect > 0; nsect--, block++, buf += tr->blksize) if (tr->writesect(dev, block, buf)) - return 0; - return 1; + return -EIO; + return 0; default: printk(KERN_NOTICE "Unknown request %u\n", rq_data_dir(req)); - return 0; + return -EIO; } } @@ -88,19 +89,18 @@ static int mtd_blktrans_thread(void *arg) { struct mtd_blktrans_ops *tr = arg; struct request_queue *rq = tr->blkcore_priv->rq; + struct request *req = NULL; /* we might get involved when memory gets low, so use PF_MEMALLOC */ current->flags |= PF_MEMALLOC; spin_lock_irq(rq->queue_lock); + while (!kthread_should_stop()) { - struct request *req; struct mtd_blktrans_dev *dev; - int res = 0; - - req = elv_next_request(rq); + int res; - if (!req) { + if (!req && !(req = blk_fetch_request(rq))) { set_current_state(TASK_INTERRUPTIBLE); spin_unlock_irq(rq->queue_lock); schedule(); @@ -119,8 +119,13 @@ static int mtd_blktrans_thread(void *arg) spin_lock_irq(rq->queue_lock); - end_request(req, res); + if (!__blk_end_request_cur(req, res)) + req = NULL; } + + if (req) + __blk_end_request_all(req, -EIO); + spin_unlock_irq(rq->queue_lock); return 0; @@ -373,7 +378,7 @@ int register_mtd_blktrans(struct mtd_blktrans_ops *tr) } tr->blkcore_priv->rq->queuedata = tr; - blk_queue_hardsect_size(tr->blkcore_priv->rq, tr->blksize); + blk_queue_logical_block_size(tr->blkcore_priv->rq, tr->blksize); if (tr->discard) blk_queue_set_discard(tr->blkcore_priv->rq, blktrans_discard_request); diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c index 0119220de7d..02700f769b8 100644 --- a/drivers/mtd/nand/davinci_nand.c +++ b/drivers/mtd/nand/davinci_nand.c @@ -407,16 +407,17 @@ static int __init nand_davinci_probe(struct platform_device *pdev) } info->chip.ecc.mode = ecc_mode; - info->clk = clk_get(&pdev->dev, "AEMIFCLK"); + info->clk = clk_get(&pdev->dev, "aemif"); if (IS_ERR(info->clk)) { ret = PTR_ERR(info->clk); - dev_dbg(&pdev->dev, "unable to get AEMIFCLK, err %d\n", ret); + dev_dbg(&pdev->dev, "unable to get AEMIF clock, err %d\n", ret); goto err_clk; } ret = clk_enable(info->clk); if (ret < 0) { - dev_dbg(&pdev->dev, "unable to enable AEMIFCLK, err %d\n", ret); + dev_dbg(&pdev->dev, "unable to enable AEMIF clock, err %d\n", + ret); goto err_clk_enable; } diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index b1419e21b46..fffb006b7d9 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -4027,8 +4027,9 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter, PCI_DMA_FROMDEVICE); length = le16_to_cpu(rx_desc->length); - - if (unlikely(!(status & E1000_RXD_STAT_EOP))) { + /* !EOP means multiple descriptors were used to store a single + * packet, also make sure the frame isn't just CRC only */ + if (unlikely(!(status & E1000_RXD_STAT_EOP) || (length <= 4))) { /* All receives must fit into a single buffer */ E1000_DBG("%s: Receive packet consumed multiple" " buffers\n", netdev->name); diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c index f9a846b1b92..9f6a68fb7b4 100644 --- a/drivers/net/forcedeth.c +++ b/drivers/net/forcedeth.c @@ -897,6 +897,12 @@ enum { }; static int phy_cross = NV_CROSSOVER_DETECTION_DISABLED; +/* + * Power down phy when interface is down (persists through reboot; + * older Linux and other OSes may not power it up again) + */ +static int phy_power_down = 0; + static inline struct fe_priv *get_nvpriv(struct net_device *dev) { return netdev_priv(dev); @@ -1485,7 +1491,10 @@ static int phy_init(struct net_device *dev) /* restart auto negotiation, power down phy */ mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ); - mii_control |= (BMCR_ANRESTART | BMCR_ANENABLE | BMCR_PDOWN); + mii_control |= (BMCR_ANRESTART | BMCR_ANENABLE); + if (phy_power_down) { + mii_control |= BMCR_PDOWN; + } if (mii_rw(dev, np->phyaddr, MII_BMCR, mii_control)) { return PHY_ERROR; } @@ -5513,7 +5522,7 @@ static int nv_close(struct net_device *dev) nv_drain_rxtx(dev); - if (np->wolenabled) { + if (np->wolenabled || !phy_power_down) { writel(NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags); nv_start_rx(dev); } else { @@ -6367,6 +6376,8 @@ module_param(dma_64bit, int, 0); MODULE_PARM_DESC(dma_64bit, "High DMA is enabled by setting to 1 and disabled by setting to 0."); module_param(phy_cross, int, 0); MODULE_PARM_DESC(phy_cross, "Phy crossover detection for Realtek 8201 phy is enabled by setting to 1 and disabled by setting to 0."); +module_param(phy_power_down, int, 0); +MODULE_PARM_DESC(phy_power_down, "Power down phy and disable link when interface is down (1), or leave phy powered up (0)."); MODULE_AUTHOR("Manfred Spraul <manfred@colorfullife.com>"); MODULE_DESCRIPTION("Reverse Engineered nForce ethernet driver"); diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c index 8247a945a1d..3b19e0ce290 100644 --- a/drivers/net/r8169.c +++ b/drivers/net/r8169.c @@ -66,7 +66,6 @@ static const int multicast_filter_limit = 32; #define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ #define EarlyTxThld 0x3F /* 0x3F means NO early transmit */ -#define RxPacketMaxSize 0x3FE8 /* 16K - 1 - ETH_HLEN - VLAN - CRC... */ #define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */ #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */ @@ -2357,10 +2356,10 @@ static u16 rtl_rw_cpluscmd(void __iomem *ioaddr) return cmd; } -static void rtl_set_rx_max_size(void __iomem *ioaddr) +static void rtl_set_rx_max_size(void __iomem *ioaddr, unsigned int rx_buf_sz) { /* Low hurts. Let's disable the filtering. */ - RTL_W16(RxMaxSize, 16383); + RTL_W16(RxMaxSize, rx_buf_sz); } static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version) @@ -2407,7 +2406,7 @@ static void rtl_hw_start_8169(struct net_device *dev) RTL_W8(EarlyTxThres, EarlyTxThld); - rtl_set_rx_max_size(ioaddr); + rtl_set_rx_max_size(ioaddr, tp->rx_buf_sz); if ((tp->mac_version == RTL_GIGA_MAC_VER_01) || (tp->mac_version == RTL_GIGA_MAC_VER_02) || @@ -2668,7 +2667,7 @@ static void rtl_hw_start_8168(struct net_device *dev) RTL_W8(EarlyTxThres, EarlyTxThld); - rtl_set_rx_max_size(ioaddr); + rtl_set_rx_max_size(ioaddr, tp->rx_buf_sz); tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1; @@ -2846,7 +2845,7 @@ static void rtl_hw_start_8101(struct net_device *dev) RTL_W8(EarlyTxThres, EarlyTxThld); - rtl_set_rx_max_size(ioaddr); + rtl_set_rx_max_size(ioaddr, tp->rx_buf_sz); tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW; diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c index 4e63cc9e277..151bf5bc8af 100644 --- a/drivers/parport/parport_pc.c +++ b/drivers/parport/parport_pc.c @@ -1,5 +1,5 @@ /* Low-level parallel-port routines for 8255-based PC-style hardware. - * + * * Authors: Phil Blundell <philb@gnu.org> * Tim Waugh <tim@cyberelk.demon.co.uk> * Jose Renau <renau@acm.org> @@ -11,7 +11,7 @@ * Cleaned up include files - Russell King <linux@arm.uk.linux.org> * DMA support - Bert De Jonghe <bert@sophis.be> * Many ECP bugs fixed. Fred Barnes & Jamie Lokier, 1999 - * More PCI support now conditional on CONFIG_PCI, 03/2001, Paul G. + * More PCI support now conditional on CONFIG_PCI, 03/2001, Paul G. * Various hacks, Fred Barnes, 04/2001 * Updated probing logic - Adam Belay <ambx1@neo.rr.com> */ @@ -56,10 +56,10 @@ #include <linux/pnp.h> #include <linux/platform_device.h> #include <linux/sysctl.h> +#include <linux/io.h> +#include <linux/uaccess.h> -#include <asm/io.h> #include <asm/dma.h> -#include <asm/uaccess.h> #include <linux/parport.h> #include <linux/parport_pc.h> @@ -82,7 +82,7 @@ #define ECR_TST 06 #define ECR_CNF 07 #define ECR_MODE_MASK 0xe0 -#define ECR_WRITE(p,v) frob_econtrol((p),0xff,(v)) +#define ECR_WRITE(p, v) frob_econtrol((p), 0xff, (v)) #undef DEBUG @@ -109,27 +109,27 @@ static int pci_registered_parport; static int pnp_registered_parport; /* frob_control, but for ECR */ -static void frob_econtrol (struct parport *pb, unsigned char m, +static void frob_econtrol(struct parport *pb, unsigned char m, unsigned char v) { unsigned char ectr = 0; if (m != 0xff) - ectr = inb (ECONTROL (pb)); + ectr = inb(ECONTROL(pb)); - DPRINTK (KERN_DEBUG "frob_econtrol(%02x,%02x): %02x -> %02x\n", + DPRINTK(KERN_DEBUG "frob_econtrol(%02x,%02x): %02x -> %02x\n", m, v, ectr, (ectr & ~m) ^ v); - outb ((ectr & ~m) ^ v, ECONTROL (pb)); + outb((ectr & ~m) ^ v, ECONTROL(pb)); } -static __inline__ void frob_set_mode (struct parport *p, int mode) +static inline void frob_set_mode(struct parport *p, int mode) { - frob_econtrol (p, ECR_MODE_MASK, mode << 5); + frob_econtrol(p, ECR_MODE_MASK, mode << 5); } #ifdef CONFIG_PARPORT_PC_FIFO -/* Safely change the mode bits in the ECR +/* Safely change the mode bits in the ECR Returns: 0 : Success -EBUSY: Could not drain FIFO in some finite amount of time, @@ -141,17 +141,18 @@ static int change_mode(struct parport *p, int m) unsigned char oecr; int mode; - DPRINTK(KERN_INFO "parport change_mode ECP-ISA to mode 0x%02x\n",m); + DPRINTK(KERN_INFO "parport change_mode ECP-ISA to mode 0x%02x\n", m); if (!priv->ecr) { - printk (KERN_DEBUG "change_mode: but there's no ECR!\n"); + printk(KERN_DEBUG "change_mode: but there's no ECR!\n"); return 0; } /* Bits <7:5> contain the mode. */ - oecr = inb (ECONTROL (p)); + oecr = inb(ECONTROL(p)); mode = (oecr >> 5) & 0x7; - if (mode == m) return 0; + if (mode == m) + return 0; if (mode >= 2 && !(priv->ctr & 0x20)) { /* This mode resets the FIFO, so we may @@ -163,19 +164,21 @@ static int change_mode(struct parport *p, int m) case ECR_ECP: /* ECP Parallel Port mode */ /* Busy wait for 200us */ for (counter = 0; counter < 40; counter++) { - if (inb (ECONTROL (p)) & 0x01) + if (inb(ECONTROL(p)) & 0x01) + break; + if (signal_pending(current)) break; - if (signal_pending (current)) break; - udelay (5); + udelay(5); } /* Poll slowly. */ - while (!(inb (ECONTROL (p)) & 0x01)) { - if (time_after_eq (jiffies, expire)) + while (!(inb(ECONTROL(p)) & 0x01)) { + if (time_after_eq(jiffies, expire)) /* The FIFO is stuck. */ return -EBUSY; - schedule_timeout_interruptible(msecs_to_jiffies(10)); - if (signal_pending (current)) + schedule_timeout_interruptible( + msecs_to_jiffies(10)); + if (signal_pending(current)) break; } } @@ -185,20 +188,20 @@ static int change_mode(struct parport *p, int m) /* We have to go through mode 001 */ oecr &= ~(7 << 5); oecr |= ECR_PS2 << 5; - ECR_WRITE (p, oecr); + ECR_WRITE(p, oecr); } /* Set the mode. */ oecr &= ~(7 << 5); oecr |= m << 5; - ECR_WRITE (p, oecr); + ECR_WRITE(p, oecr); return 0; } #ifdef CONFIG_PARPORT_1284 /* Find FIFO lossage; FIFO is reset */ #if 0 -static int get_fifo_residue (struct parport *p) +static int get_fifo_residue(struct parport *p) { int residue; int cnfga; @@ -206,26 +209,26 @@ static int get_fifo_residue (struct parport *p) /* Adjust for the contents of the FIFO. */ for (residue = priv->fifo_depth; ; residue--) { - if (inb (ECONTROL (p)) & 0x2) + if (inb(ECONTROL(p)) & 0x2) /* Full up. */ break; - outb (0, FIFO (p)); + outb(0, FIFO(p)); } - printk (KERN_DEBUG "%s: %d PWords were left in FIFO\n", p->name, + printk(KERN_DEBUG "%s: %d PWords were left in FIFO\n", p->name, residue); /* Reset the FIFO. */ - frob_set_mode (p, ECR_PS2); + frob_set_mode(p, ECR_PS2); /* Now change to config mode and clean up. FIXME */ - frob_set_mode (p, ECR_CNF); - cnfga = inb (CONFIGA (p)); - printk (KERN_DEBUG "%s: cnfgA contains 0x%02x\n", p->name, cnfga); + frob_set_mode(p, ECR_CNF); + cnfga = inb(CONFIGA(p)); + printk(KERN_DEBUG "%s: cnfgA contains 0x%02x\n", p->name, cnfga); if (!(cnfga & (1<<2))) { - printk (KERN_DEBUG "%s: Accounting for extra byte\n", p->name); + printk(KERN_DEBUG "%s: Accounting for extra byte\n", p->name); residue++; } @@ -233,9 +236,11 @@ static int get_fifo_residue (struct parport *p) * PWord != 1 byte. */ /* Back to PS2 mode. */ - frob_set_mode (p, ECR_PS2); + frob_set_mode(p, ECR_PS2); - DPRINTK (KERN_DEBUG "*** get_fifo_residue: done residue collecting (ecr = 0x%2.2x)\n", inb (ECONTROL (p))); + DPRINTK(KERN_DEBUG + "*** get_fifo_residue: done residue collecting (ecr = 0x%2.2x)\n", + inb(ECONTROL(p))); return residue; } #endif /* 0 */ @@ -257,8 +262,8 @@ static int clear_epp_timeout(struct parport *pb) /* To clear timeout some chips require double read */ parport_pc_read_status(pb); r = parport_pc_read_status(pb); - outb (r | 0x01, STATUS (pb)); /* Some reset by writing 1 */ - outb (r & 0xfe, STATUS (pb)); /* Others by writing 0 */ + outb(r | 0x01, STATUS(pb)); /* Some reset by writing 1 */ + outb(r & 0xfe, STATUS(pb)); /* Others by writing 0 */ r = parport_pc_read_status(pb); return !(r & 0x01); @@ -272,7 +277,8 @@ static int clear_epp_timeout(struct parport *pb) * of these are in parport_pc.h. */ -static void parport_pc_init_state(struct pardevice *dev, struct parport_state *s) +static void parport_pc_init_state(struct pardevice *dev, + struct parport_state *s) { s->u.pc.ctr = 0xc; if (dev->irq_func && @@ -289,22 +295,23 @@ static void parport_pc_save_state(struct parport *p, struct parport_state *s) const struct parport_pc_private *priv = p->physport->private_data; s->u.pc.ctr = priv->ctr; if (priv->ecr) - s->u.pc.ecr = inb (ECONTROL (p)); + s->u.pc.ecr = inb(ECONTROL(p)); } -static void parport_pc_restore_state(struct parport *p, struct parport_state *s) +static void parport_pc_restore_state(struct parport *p, + struct parport_state *s) { struct parport_pc_private *priv = p->physport->private_data; register unsigned char c = s->u.pc.ctr & priv->ctr_writable; - outb (c, CONTROL (p)); + outb(c, CONTROL(p)); priv->ctr = c; if (priv->ecr) - ECR_WRITE (p, s->u.pc.ecr); + ECR_WRITE(p, s->u.pc.ecr); } #ifdef CONFIG_PARPORT_1284 -static size_t parport_pc_epp_read_data (struct parport *port, void *buf, - size_t length, int flags) +static size_t parport_pc_epp_read_data(struct parport *port, void *buf, + size_t length, int flags) { size_t got = 0; @@ -316,54 +323,52 @@ static size_t parport_pc_epp_read_data (struct parport *port, void *buf, * nFault is 0 if there is at least 1 byte in the Warp's FIFO * pError is 1 if there are 16 bytes in the Warp's FIFO */ - status = inb (STATUS (port)); + status = inb(STATUS(port)); - while (!(status & 0x08) && (got < length)) { - if ((left >= 16) && (status & 0x20) && !(status & 0x08)) { + while (!(status & 0x08) && got < length) { + if (left >= 16 && (status & 0x20) && !(status & 0x08)) { /* can grab 16 bytes from warp fifo */ - if (!((long)buf & 0x03)) { - insl (EPPDATA (port), buf, 4); - } else { - insb (EPPDATA (port), buf, 16); - } + if (!((long)buf & 0x03)) + insl(EPPDATA(port), buf, 4); + else + insb(EPPDATA(port), buf, 16); buf += 16; got += 16; left -= 16; } else { /* grab single byte from the warp fifo */ - *((char *)buf) = inb (EPPDATA (port)); + *((char *)buf) = inb(EPPDATA(port)); buf++; got++; left--; } - status = inb (STATUS (port)); + status = inb(STATUS(port)); if (status & 0x01) { /* EPP timeout should never occur... */ - printk (KERN_DEBUG "%s: EPP timeout occurred while talking to " - "w91284pic (should not have done)\n", port->name); - clear_epp_timeout (port); + printk(KERN_DEBUG +"%s: EPP timeout occurred while talking to w91284pic (should not have done)\n", port->name); + clear_epp_timeout(port); } } return got; } if ((flags & PARPORT_EPP_FAST) && (length > 1)) { - if (!(((long)buf | length) & 0x03)) { - insl (EPPDATA (port), buf, (length >> 2)); - } else { - insb (EPPDATA (port), buf, length); - } - if (inb (STATUS (port)) & 0x01) { - clear_epp_timeout (port); + if (!(((long)buf | length) & 0x03)) + insl(EPPDATA(port), buf, (length >> 2)); + else + insb(EPPDATA(port), buf, length); + if (inb(STATUS(port)) & 0x01) { + clear_epp_timeout(port); return -EIO; } return length; } for (; got < length; got++) { - *((char*)buf) = inb (EPPDATA(port)); + *((char *)buf) = inb(EPPDATA(port)); buf++; - if (inb (STATUS (port)) & 0x01) { + if (inb(STATUS(port)) & 0x01) { /* EPP timeout */ - clear_epp_timeout (port); + clear_epp_timeout(port); break; } } @@ -371,28 +376,27 @@ static size_t parport_pc_epp_read_data (struct parport *port, void *buf, return got; } -static size_t parport_pc_epp_write_data (struct parport *port, const void *buf, - size_t length, int flags) +static size_t parport_pc_epp_write_data(struct parport *port, const void *buf, + size_t length, int flags) { size_t written = 0; if ((flags & PARPORT_EPP_FAST) && (length > 1)) { - if (!(((long)buf | length) & 0x03)) { - outsl (EPPDATA (port), buf, (length >> 2)); - } else { - outsb (EPPDATA (port), buf, length); - } - if (inb (STATUS (port)) & 0x01) { - clear_epp_timeout (port); + if (!(((long)buf | length) & 0x03)) + outsl(EPPDATA(port), buf, (length >> 2)); + else + outsb(EPPDATA(port), buf, length); + if (inb(STATUS(port)) & 0x01) { + clear_epp_timeout(port); return -EIO; } return length; } for (; written < length; written++) { - outb (*((char*)buf), EPPDATA(port)); + outb(*((char *)buf), EPPDATA(port)); buf++; - if (inb (STATUS(port)) & 0x01) { - clear_epp_timeout (port); + if (inb(STATUS(port)) & 0x01) { + clear_epp_timeout(port); break; } } @@ -400,24 +404,24 @@ static size_t parport_pc_epp_write_data (struct parport *port, const void *buf, return written; } -static size_t parport_pc_epp_read_addr (struct parport *port, void *buf, +static size_t parport_pc_epp_read_addr(struct parport *port, void *buf, size_t length, int flags) { size_t got = 0; if ((flags & PARPORT_EPP_FAST) && (length > 1)) { - insb (EPPADDR (port), buf, length); - if (inb (STATUS (port)) & 0x01) { - clear_epp_timeout (port); + insb(EPPADDR(port), buf, length); + if (inb(STATUS(port)) & 0x01) { + clear_epp_timeout(port); return -EIO; } return length; } for (; got < length; got++) { - *((char*)buf) = inb (EPPADDR (port)); + *((char *)buf) = inb(EPPADDR(port)); buf++; - if (inb (STATUS (port)) & 0x01) { - clear_epp_timeout (port); + if (inb(STATUS(port)) & 0x01) { + clear_epp_timeout(port); break; } } @@ -425,25 +429,25 @@ static size_t parport_pc_epp_read_addr (struct parport *port, void *buf, return got; } -static size_t parport_pc_epp_write_addr (struct parport *port, +static size_t parport_pc_epp_write_addr(struct parport *port, const void *buf, size_t length, int flags) { size_t written = 0; if ((flags & PARPORT_EPP_FAST) && (length > 1)) { - outsb (EPPADDR (port), buf, length); - if (inb (STATUS (port)) & 0x01) { - clear_epp_timeout (port); + outsb(EPPADDR(port), buf, length); + if (inb(STATUS(port)) & 0x01) { + clear_epp_timeout(port); return -EIO; } return length; } for (; written < length; written++) { - outb (*((char*)buf), EPPADDR (port)); + outb(*((char *)buf), EPPADDR(port)); buf++; - if (inb (STATUS (port)) & 0x01) { - clear_epp_timeout (port); + if (inb(STATUS(port)) & 0x01) { + clear_epp_timeout(port); break; } } @@ -451,74 +455,74 @@ static size_t parport_pc_epp_write_addr (struct parport *port, return written; } -static size_t parport_pc_ecpepp_read_data (struct parport *port, void *buf, - size_t length, int flags) +static size_t parport_pc_ecpepp_read_data(struct parport *port, void *buf, + size_t length, int flags) { size_t got; - frob_set_mode (port, ECR_EPP); - parport_pc_data_reverse (port); - parport_pc_write_control (port, 0x4); - got = parport_pc_epp_read_data (port, buf, length, flags); - frob_set_mode (port, ECR_PS2); + frob_set_mode(port, ECR_EPP); + parport_pc_data_reverse(port); + parport_pc_write_control(port, 0x4); + got = parport_pc_epp_read_data(port, buf, length, flags); + frob_set_mode(port, ECR_PS2); return got; } -static size_t parport_pc_ecpepp_write_data (struct parport *port, - const void *buf, size_t length, - int flags) +static size_t parport_pc_ecpepp_write_data(struct parport *port, + const void *buf, size_t length, + int flags) { size_t written; - frob_set_mode (port, ECR_EPP); - parport_pc_write_control (port, 0x4); - parport_pc_data_forward (port); - written = parport_pc_epp_write_data (port, buf, length, flags); - frob_set_mode (port, ECR_PS2); + frob_set_mode(port, ECR_EPP); + parport_pc_write_control(port, 0x4); + parport_pc_data_forward(port); + written = parport_pc_epp_write_data(port, buf, length, flags); + frob_set_mode(port, ECR_PS2); return written; } -static size_t parport_pc_ecpepp_read_addr (struct parport *port, void *buf, - size_t length, int flags) +static size_t parport_pc_ecpepp_read_addr(struct parport *port, void *buf, + size_t length, int flags) { size_t got; - frob_set_mode (port, ECR_EPP); - parport_pc_data_reverse (port); - parport_pc_write_control (port, 0x4); - got = parport_pc_epp_read_addr (port, buf, length, flags); - frob_set_mode (port, ECR_PS2); + frob_set_mode(port, ECR_EPP); + parport_pc_data_reverse(port); + parport_pc_write_control(port, 0x4); + got = parport_pc_epp_read_addr(port, buf, length, flags); + frob_set_mode(port, ECR_PS2); return got; } -static size_t parport_pc_ecpepp_write_addr (struct parport *port, +static size_t parport_pc_ecpepp_write_addr(struct parport *port, const void *buf, size_t length, int flags) { size_t written; - frob_set_mode (port, ECR_EPP); - parport_pc_write_control (port, 0x4); - parport_pc_data_forward (port); - written = parport_pc_epp_write_addr (port, buf, length, flags); - frob_set_mode (port, ECR_PS2); + frob_set_mode(port, ECR_EPP); + parport_pc_write_control(port, 0x4); + parport_pc_data_forward(port); + written = parport_pc_epp_write_addr(port, buf, length, flags); + frob_set_mode(port, ECR_PS2); return written; } #endif /* IEEE 1284 support */ #ifdef CONFIG_PARPORT_PC_FIFO -static size_t parport_pc_fifo_write_block_pio (struct parport *port, +static size_t parport_pc_fifo_write_block_pio(struct parport *port, const void *buf, size_t length) { int ret = 0; const unsigned char *bufp = buf; size_t left = length; unsigned long expire = jiffies + port->physport->cad->timeout; - const int fifo = FIFO (port); + const int fifo = FIFO(port); int poll_for = 8; /* 80 usecs */ const struct parport_pc_private *priv = port->physport->private_data; const int fifo_depth = priv->fifo_depth; @@ -526,25 +530,25 @@ static size_t parport_pc_fifo_write_block_pio (struct parport *port, port = port->physport; /* We don't want to be interrupted every character. */ - parport_pc_disable_irq (port); + parport_pc_disable_irq(port); /* set nErrIntrEn and serviceIntr */ - frob_econtrol (port, (1<<4) | (1<<2), (1<<4) | (1<<2)); + frob_econtrol(port, (1<<4) | (1<<2), (1<<4) | (1<<2)); /* Forward mode. */ - parport_pc_data_forward (port); /* Must be in PS2 mode */ + parport_pc_data_forward(port); /* Must be in PS2 mode */ while (left) { unsigned char byte; - unsigned char ecrval = inb (ECONTROL (port)); + unsigned char ecrval = inb(ECONTROL(port)); int i = 0; - if (need_resched() && time_before (jiffies, expire)) + if (need_resched() && time_before(jiffies, expire)) /* Can't yield the port. */ - schedule (); + schedule(); /* Anyone else waiting for the port? */ if (port->waithead) { - printk (KERN_DEBUG "Somebody wants the port\n"); + printk(KERN_DEBUG "Somebody wants the port\n"); break; } @@ -552,21 +556,22 @@ static size_t parport_pc_fifo_write_block_pio (struct parport *port, /* FIFO is full. Wait for interrupt. */ /* Clear serviceIntr */ - ECR_WRITE (port, ecrval & ~(1<<2)); - false_alarm: - ret = parport_wait_event (port, HZ); - if (ret < 0) break; + ECR_WRITE(port, ecrval & ~(1<<2)); +false_alarm: + ret = parport_wait_event(port, HZ); + if (ret < 0) + break; ret = 0; - if (!time_before (jiffies, expire)) { + if (!time_before(jiffies, expire)) { /* Timed out. */ - printk (KERN_DEBUG "FIFO write timed out\n"); + printk(KERN_DEBUG "FIFO write timed out\n"); break; } - ecrval = inb (ECONTROL (port)); + ecrval = inb(ECONTROL(port)); if (!(ecrval & (1<<2))) { if (need_resched() && - time_before (jiffies, expire)) - schedule (); + time_before(jiffies, expire)) + schedule(); goto false_alarm; } @@ -577,38 +582,38 @@ static size_t parport_pc_fifo_write_block_pio (struct parport *port, /* Can't fail now. */ expire = jiffies + port->cad->timeout; - poll: - if (signal_pending (current)) +poll: + if (signal_pending(current)) break; if (ecrval & 0x01) { /* FIFO is empty. Blast it full. */ const int n = left < fifo_depth ? left : fifo_depth; - outsb (fifo, bufp, n); + outsb(fifo, bufp, n); bufp += n; left -= n; /* Adjust the poll time. */ - if (i < (poll_for - 2)) poll_for--; + if (i < (poll_for - 2)) + poll_for--; continue; } else if (i++ < poll_for) { - udelay (10); - ecrval = inb (ECONTROL (port)); + udelay(10); + ecrval = inb(ECONTROL(port)); goto poll; } - /* Half-full (call me an optimist) */ + /* Half-full(call me an optimist) */ byte = *bufp++; - outb (byte, fifo); + outb(byte, fifo); left--; - } - -dump_parport_state ("leave fifo_write_block_pio", port); + } + dump_parport_state("leave fifo_write_block_pio", port); return length - left; } #ifdef HAS_DMA -static size_t parport_pc_fifo_write_block_dma (struct parport *port, +static size_t parport_pc_fifo_write_block_dma(struct parport *port, const void *buf, size_t length) { int ret = 0; @@ -621,7 +626,7 @@ static size_t parport_pc_fifo_write_block_dma (struct parport *port, unsigned long start = (unsigned long) buf; unsigned long end = (unsigned long) buf + length - 1; -dump_parport_state ("enter fifo_write_block_dma", port); + dump_parport_state("enter fifo_write_block_dma", port); if (end < MAX_DMA_ADDRESS) { /* If it would cross a 64k boundary, cap it at the end. */ if ((start ^ end) & ~0xffffUL) @@ -629,8 +634,9 @@ dump_parport_state ("enter fifo_write_block_dma", port); dma_addr = dma_handle = dma_map_single(dev, (void *)buf, length, DMA_TO_DEVICE); - } else { - /* above 16 MB we use a bounce buffer as ISA-DMA is not possible */ + } else { + /* above 16 MB we use a bounce buffer as ISA-DMA + is not possible */ maxlen = PAGE_SIZE; /* sizeof(priv->dma_buf) */ dma_addr = priv->dma_handle; dma_handle = 0; @@ -639,12 +645,12 @@ dump_parport_state ("enter fifo_write_block_dma", port); port = port->physport; /* We don't want to be interrupted every character. */ - parport_pc_disable_irq (port); + parport_pc_disable_irq(port); /* set nErrIntrEn and serviceIntr */ - frob_econtrol (port, (1<<4) | (1<<2), (1<<4) | (1<<2)); + frob_econtrol(port, (1<<4) | (1<<2), (1<<4) | (1<<2)); /* Forward mode. */ - parport_pc_data_forward (port); /* Must be in PS2 mode */ + parport_pc_data_forward(port); /* Must be in PS2 mode */ while (left) { unsigned long expire = jiffies + port->physport->cad->timeout; @@ -665,10 +671,10 @@ dump_parport_state ("enter fifo_write_block_dma", port); set_dma_count(port->dma, count); /* Set DMA mode */ - frob_econtrol (port, 1<<3, 1<<3); + frob_econtrol(port, 1<<3, 1<<3); /* Clear serviceIntr */ - frob_econtrol (port, 1<<2, 0); + frob_econtrol(port, 1<<2, 0); enable_dma(port->dma); release_dma_lock(dmaflag); @@ -676,20 +682,22 @@ dump_parport_state ("enter fifo_write_block_dma", port); /* assume DMA will be successful */ left -= count; buf += count; - if (dma_handle) dma_addr += count; + if (dma_handle) + dma_addr += count; /* Wait for interrupt. */ - false_alarm: - ret = parport_wait_event (port, HZ); - if (ret < 0) break; +false_alarm: + ret = parport_wait_event(port, HZ); + if (ret < 0) + break; ret = 0; - if (!time_before (jiffies, expire)) { + if (!time_before(jiffies, expire)) { /* Timed out. */ - printk (KERN_DEBUG "DMA write timed out\n"); + printk(KERN_DEBUG "DMA write timed out\n"); break; } /* Is serviceIntr set? */ - if (!(inb (ECONTROL (port)) & (1<<2))) { + if (!(inb(ECONTROL(port)) & (1<<2))) { cond_resched(); goto false_alarm; @@ -705,14 +713,15 @@ dump_parport_state ("enter fifo_write_block_dma", port); /* Anyone else waiting for the port? */ if (port->waithead) { - printk (KERN_DEBUG "Somebody wants the port\n"); + printk(KERN_DEBUG "Somebody wants the port\n"); break; } /* update for possible DMA residue ! */ buf -= count; left += count; - if (dma_handle) dma_addr -= count; + if (dma_handle) + dma_addr -= count; } /* Maybe got here through break, so adjust for DMA residue! */ @@ -723,12 +732,12 @@ dump_parport_state ("enter fifo_write_block_dma", port); release_dma_lock(dmaflag); /* Turn off DMA mode */ - frob_econtrol (port, 1<<3, 0); + frob_econtrol(port, 1<<3, 0); if (dma_handle) dma_unmap_single(dev, dma_handle, length, DMA_TO_DEVICE); -dump_parport_state ("leave fifo_write_block_dma", port); + dump_parport_state("leave fifo_write_block_dma", port); return length - left; } #endif @@ -738,13 +747,13 @@ static inline size_t parport_pc_fifo_write_block(struct parport *port, { #ifdef HAS_DMA if (port->dma != PARPORT_DMA_NONE) - return parport_pc_fifo_write_block_dma (port, buf, length); + return parport_pc_fifo_write_block_dma(port, buf, length); #endif - return parport_pc_fifo_write_block_pio (port, buf, length); + return parport_pc_fifo_write_block_pio(port, buf, length); } /* Parallel Port FIFO mode (ECP chipsets) */ -static size_t parport_pc_compat_write_block_pio (struct parport *port, +static size_t parport_pc_compat_write_block_pio(struct parport *port, const void *buf, size_t length, int flags) { @@ -756,14 +765,16 @@ static size_t parport_pc_compat_write_block_pio (struct parport *port, /* Special case: a timeout of zero means we cannot call schedule(). * Also if O_NONBLOCK is set then use the default implementation. */ if (port->physport->cad->timeout <= PARPORT_INACTIVITY_O_NONBLOCK) - return parport_ieee1284_write_compat (port, buf, + return parport_ieee1284_write_compat(port, buf, length, flags); /* Set up parallel port FIFO mode.*/ - parport_pc_data_forward (port); /* Must be in PS2 mode */ - parport_pc_frob_control (port, PARPORT_CONTROL_STROBE, 0); - r = change_mode (port, ECR_PPF); /* Parallel port FIFO */ - if (r) printk (KERN_DEBUG "%s: Warning change_mode ECR_PPF failed\n", port->name); + parport_pc_data_forward(port); /* Must be in PS2 mode */ + parport_pc_frob_control(port, PARPORT_CONTROL_STROBE, 0); + r = change_mode(port, ECR_PPF); /* Parallel port FIFO */ + if (r) + printk(KERN_DEBUG "%s: Warning change_mode ECR_PPF failed\n", + port->name); port->physport->ieee1284.phase = IEEE1284_PH_FWD_DATA; @@ -775,40 +786,39 @@ static size_t parport_pc_compat_write_block_pio (struct parport *port, * the FIFO is empty, so allow 4 seconds for each position * in the fifo. */ - expire = jiffies + (priv->fifo_depth * HZ * 4); + expire = jiffies + (priv->fifo_depth * HZ * 4); do { /* Wait for the FIFO to empty */ - r = change_mode (port, ECR_PS2); - if (r != -EBUSY) { + r = change_mode(port, ECR_PS2); + if (r != -EBUSY) break; - } - } while (time_before (jiffies, expire)); + } while (time_before(jiffies, expire)); if (r == -EBUSY) { - printk (KERN_DEBUG "%s: FIFO is stuck\n", port->name); + printk(KERN_DEBUG "%s: FIFO is stuck\n", port->name); /* Prevent further data transfer. */ - frob_set_mode (port, ECR_TST); + frob_set_mode(port, ECR_TST); /* Adjust for the contents of the FIFO. */ for (written -= priv->fifo_depth; ; written++) { - if (inb (ECONTROL (port)) & 0x2) { + if (inb(ECONTROL(port)) & 0x2) { /* Full up. */ break; } - outb (0, FIFO (port)); + outb(0, FIFO(port)); } /* Reset the FIFO and return to PS2 mode. */ - frob_set_mode (port, ECR_PS2); + frob_set_mode(port, ECR_PS2); } - r = parport_wait_peripheral (port, + r = parport_wait_peripheral(port, PARPORT_STATUS_BUSY, PARPORT_STATUS_BUSY); if (r) - printk (KERN_DEBUG - "%s: BUSY timeout (%d) in compat_write_block_pio\n", + printk(KERN_DEBUG + "%s: BUSY timeout (%d) in compat_write_block_pio\n", port->name, r); port->physport->ieee1284.phase = IEEE1284_PH_FWD_IDLE; @@ -818,7 +828,7 @@ static size_t parport_pc_compat_write_block_pio (struct parport *port, /* ECP */ #ifdef CONFIG_PARPORT_1284 -static size_t parport_pc_ecp_write_block_pio (struct parport *port, +static size_t parport_pc_ecp_write_block_pio(struct parport *port, const void *buf, size_t length, int flags) { @@ -830,36 +840,38 @@ static size_t parport_pc_ecp_write_block_pio (struct parport *port, /* Special case: a timeout of zero means we cannot call schedule(). * Also if O_NONBLOCK is set then use the default implementation. */ if (port->physport->cad->timeout <= PARPORT_INACTIVITY_O_NONBLOCK) - return parport_ieee1284_ecp_write_data (port, buf, + return parport_ieee1284_ecp_write_data(port, buf, length, flags); /* Switch to forward mode if necessary. */ if (port->physport->ieee1284.phase != IEEE1284_PH_FWD_IDLE) { /* Event 47: Set nInit high. */ - parport_frob_control (port, + parport_frob_control(port, PARPORT_CONTROL_INIT | PARPORT_CONTROL_AUTOFD, PARPORT_CONTROL_INIT | PARPORT_CONTROL_AUTOFD); /* Event 49: PError goes high. */ - r = parport_wait_peripheral (port, + r = parport_wait_peripheral(port, PARPORT_STATUS_PAPEROUT, PARPORT_STATUS_PAPEROUT); if (r) { - printk (KERN_DEBUG "%s: PError timeout (%d) " + printk(KERN_DEBUG "%s: PError timeout (%d) " "in ecp_write_block_pio\n", port->name, r); } } /* Set up ECP parallel port mode.*/ - parport_pc_data_forward (port); /* Must be in PS2 mode */ - parport_pc_frob_control (port, + parport_pc_data_forward(port); /* Must be in PS2 mode */ + parport_pc_frob_control(port, PARPORT_CONTROL_STROBE | PARPORT_CONTROL_AUTOFD, 0); - r = change_mode (port, ECR_ECP); /* ECP FIFO */ - if (r) printk (KERN_DEBUG "%s: Warning change_mode ECR_ECP failed\n", port->name); + r = change_mode(port, ECR_ECP); /* ECP FIFO */ + if (r) + printk(KERN_DEBUG "%s: Warning change_mode ECR_ECP failed\n", + port->name); port->physport->ieee1284.phase = IEEE1284_PH_FWD_DATA; /* Write the data to the FIFO. */ @@ -873,55 +885,54 @@ static size_t parport_pc_ecp_write_block_pio (struct parport *port, expire = jiffies + (priv->fifo_depth * (HZ * 4)); do { /* Wait for the FIFO to empty */ - r = change_mode (port, ECR_PS2); - if (r != -EBUSY) { + r = change_mode(port, ECR_PS2); + if (r != -EBUSY) break; - } - } while (time_before (jiffies, expire)); + } while (time_before(jiffies, expire)); if (r == -EBUSY) { - printk (KERN_DEBUG "%s: FIFO is stuck\n", port->name); + printk(KERN_DEBUG "%s: FIFO is stuck\n", port->name); /* Prevent further data transfer. */ - frob_set_mode (port, ECR_TST); + frob_set_mode(port, ECR_TST); /* Adjust for the contents of the FIFO. */ for (written -= priv->fifo_depth; ; written++) { - if (inb (ECONTROL (port)) & 0x2) { + if (inb(ECONTROL(port)) & 0x2) { /* Full up. */ break; } - outb (0, FIFO (port)); + outb(0, FIFO(port)); } /* Reset the FIFO and return to PS2 mode. */ - frob_set_mode (port, ECR_PS2); + frob_set_mode(port, ECR_PS2); /* Host transfer recovery. */ - parport_pc_data_reverse (port); /* Must be in PS2 mode */ - udelay (5); - parport_frob_control (port, PARPORT_CONTROL_INIT, 0); - r = parport_wait_peripheral (port, PARPORT_STATUS_PAPEROUT, 0); + parport_pc_data_reverse(port); /* Must be in PS2 mode */ + udelay(5); + parport_frob_control(port, PARPORT_CONTROL_INIT, 0); + r = parport_wait_peripheral(port, PARPORT_STATUS_PAPEROUT, 0); if (r) - printk (KERN_DEBUG "%s: PE,1 timeout (%d) " + printk(KERN_DEBUG "%s: PE,1 timeout (%d) " "in ecp_write_block_pio\n", port->name, r); - parport_frob_control (port, + parport_frob_control(port, PARPORT_CONTROL_INIT, PARPORT_CONTROL_INIT); - r = parport_wait_peripheral (port, + r = parport_wait_peripheral(port, PARPORT_STATUS_PAPEROUT, PARPORT_STATUS_PAPEROUT); - if (r) - printk (KERN_DEBUG "%s: PE,2 timeout (%d) " + if (r) + printk(KERN_DEBUG "%s: PE,2 timeout (%d) " "in ecp_write_block_pio\n", port->name, r); } - r = parport_wait_peripheral (port, - PARPORT_STATUS_BUSY, + r = parport_wait_peripheral(port, + PARPORT_STATUS_BUSY, PARPORT_STATUS_BUSY); - if(r) - printk (KERN_DEBUG + if (r) + printk(KERN_DEBUG "%s: BUSY timeout (%d) in ecp_write_block_pio\n", port->name, r); @@ -931,7 +942,7 @@ static size_t parport_pc_ecp_write_block_pio (struct parport *port, } #if 0 -static size_t parport_pc_ecp_read_block_pio (struct parport *port, +static size_t parport_pc_ecp_read_block_pio(struct parport *port, void *buf, size_t length, int flags) { @@ -944,13 +955,13 @@ static size_t parport_pc_ecp_read_block_pio (struct parport *port, char *bufp = buf; port = port->physport; -DPRINTK (KERN_DEBUG "parport_pc: parport_pc_ecp_read_block_pio\n"); -dump_parport_state ("enter fcn", port); + DPRINTK(KERN_DEBUG "parport_pc: parport_pc_ecp_read_block_pio\n"); + dump_parport_state("enter fcn", port); /* Special case: a timeout of zero means we cannot call schedule(). * Also if O_NONBLOCK is set then use the default implementation. */ if (port->cad->timeout <= PARPORT_INACTIVITY_O_NONBLOCK) - return parport_ieee1284_ecp_read_data (port, buf, + return parport_ieee1284_ecp_read_data(port, buf, length, flags); if (port->ieee1284.mode == IEEE1284_MODE_ECPRLE) { @@ -966,173 +977,178 @@ dump_parport_state ("enter fcn", port); * go through software emulation. Otherwise we may have to throw * away data. */ if (length < fifofull) - return parport_ieee1284_ecp_read_data (port, buf, + return parport_ieee1284_ecp_read_data(port, buf, length, flags); if (port->ieee1284.phase != IEEE1284_PH_REV_IDLE) { /* change to reverse-idle phase (must be in forward-idle) */ /* Event 38: Set nAutoFd low (also make sure nStrobe is high) */ - parport_frob_control (port, + parport_frob_control(port, PARPORT_CONTROL_AUTOFD | PARPORT_CONTROL_STROBE, PARPORT_CONTROL_AUTOFD); - parport_pc_data_reverse (port); /* Must be in PS2 mode */ - udelay (5); + parport_pc_data_reverse(port); /* Must be in PS2 mode */ + udelay(5); /* Event 39: Set nInit low to initiate bus reversal */ - parport_frob_control (port, + parport_frob_control(port, PARPORT_CONTROL_INIT, 0); /* Event 40: Wait for nAckReverse (PError) to go low */ - r = parport_wait_peripheral (port, PARPORT_STATUS_PAPEROUT, 0); - if (r) { - printk (KERN_DEBUG "%s: PE timeout Event 40 (%d) " + r = parport_wait_peripheral(port, PARPORT_STATUS_PAPEROUT, 0); + if (r) { + printk(KERN_DEBUG "%s: PE timeout Event 40 (%d) " "in ecp_read_block_pio\n", port->name, r); return 0; } } /* Set up ECP FIFO mode.*/ -/* parport_pc_frob_control (port, +/* parport_pc_frob_control(port, PARPORT_CONTROL_STROBE | PARPORT_CONTROL_AUTOFD, PARPORT_CONTROL_AUTOFD); */ - r = change_mode (port, ECR_ECP); /* ECP FIFO */ - if (r) printk (KERN_DEBUG "%s: Warning change_mode ECR_ECP failed\n", port->name); + r = change_mode(port, ECR_ECP); /* ECP FIFO */ + if (r) + printk(KERN_DEBUG "%s: Warning change_mode ECR_ECP failed\n", + port->name); port->ieee1284.phase = IEEE1284_PH_REV_DATA; /* the first byte must be collected manually */ -dump_parport_state ("pre 43", port); + dump_parport_state("pre 43", port); /* Event 43: Wait for nAck to go low */ - r = parport_wait_peripheral (port, PARPORT_STATUS_ACK, 0); + r = parport_wait_peripheral(port, PARPORT_STATUS_ACK, 0); if (r) { /* timed out while reading -- no data */ - printk (KERN_DEBUG "PIO read timed out (initial byte)\n"); + printk(KERN_DEBUG "PIO read timed out (initial byte)\n"); goto out_no_data; } /* read byte */ - *bufp++ = inb (DATA (port)); + *bufp++ = inb(DATA(port)); left--; -dump_parport_state ("43-44", port); + dump_parport_state("43-44", port); /* Event 44: nAutoFd (HostAck) goes high to acknowledge */ - parport_pc_frob_control (port, + parport_pc_frob_control(port, PARPORT_CONTROL_AUTOFD, 0); -dump_parport_state ("pre 45", port); + dump_parport_state("pre 45", port); /* Event 45: Wait for nAck to go high */ -/* r = parport_wait_peripheral (port, PARPORT_STATUS_ACK, PARPORT_STATUS_ACK); */ -dump_parport_state ("post 45", port); -r = 0; + /* r = parport_wait_peripheral(port, PARPORT_STATUS_ACK, + PARPORT_STATUS_ACK); */ + dump_parport_state("post 45", port); + r = 0; if (r) { /* timed out while waiting for peripheral to respond to ack */ - printk (KERN_DEBUG "ECP PIO read timed out (waiting for nAck)\n"); + printk(KERN_DEBUG "ECP PIO read timed out (waiting for nAck)\n"); /* keep hold of the byte we've got already */ goto out_no_data; } /* Event 46: nAutoFd (HostAck) goes low to accept more data */ - parport_pc_frob_control (port, + parport_pc_frob_control(port, PARPORT_CONTROL_AUTOFD, PARPORT_CONTROL_AUTOFD); -dump_parport_state ("rev idle", port); + dump_parport_state("rev idle", port); /* Do the transfer. */ while (left > fifofull) { int ret; unsigned long expire = jiffies + port->cad->timeout; - unsigned char ecrval = inb (ECONTROL (port)); + unsigned char ecrval = inb(ECONTROL(port)); - if (need_resched() && time_before (jiffies, expire)) + if (need_resched() && time_before(jiffies, expire)) /* Can't yield the port. */ - schedule (); + schedule(); /* At this point, the FIFO may already be full. In - * that case ECP is already holding back the - * peripheral (assuming proper design) with a delayed - * handshake. Work fast to avoid a peripheral - * timeout. */ + * that case ECP is already holding back the + * peripheral (assuming proper design) with a delayed + * handshake. Work fast to avoid a peripheral + * timeout. */ if (ecrval & 0x01) { /* FIFO is empty. Wait for interrupt. */ -dump_parport_state ("FIFO empty", port); + dump_parport_state("FIFO empty", port); /* Anyone else waiting for the port? */ if (port->waithead) { - printk (KERN_DEBUG "Somebody wants the port\n"); + printk(KERN_DEBUG "Somebody wants the port\n"); break; } /* Clear serviceIntr */ - ECR_WRITE (port, ecrval & ~(1<<2)); - false_alarm: -dump_parport_state ("waiting", port); - ret = parport_wait_event (port, HZ); -DPRINTK (KERN_DEBUG "parport_wait_event returned %d\n", ret); + ECR_WRITE(port, ecrval & ~(1<<2)); +false_alarm: + dump_parport_state("waiting", port); + ret = parport_wait_event(port, HZ); + DPRINTK(KERN_DEBUG "parport_wait_event returned %d\n", + ret); if (ret < 0) break; ret = 0; - if (!time_before (jiffies, expire)) { + if (!time_before(jiffies, expire)) { /* Timed out. */ -dump_parport_state ("timeout", port); - printk (KERN_DEBUG "PIO read timed out\n"); + dump_parport_state("timeout", port); + printk(KERN_DEBUG "PIO read timed out\n"); break; } - ecrval = inb (ECONTROL (port)); + ecrval = inb(ECONTROL(port)); if (!(ecrval & (1<<2))) { if (need_resched() && - time_before (jiffies, expire)) { - schedule (); + time_before(jiffies, expire)) { + schedule(); } goto false_alarm; } /* Depending on how the FIFO threshold was - * set, how long interrupt service took, and - * how fast the peripheral is, we might be - * lucky and have a just filled FIFO. */ + * set, how long interrupt service took, and + * how fast the peripheral is, we might be + * lucky and have a just filled FIFO. */ continue; } if (ecrval & 0x02) { /* FIFO is full. */ -dump_parport_state ("FIFO full", port); - insb (fifo, bufp, fifo_depth); + dump_parport_state("FIFO full", port); + insb(fifo, bufp, fifo_depth); bufp += fifo_depth; left -= fifo_depth; continue; } -DPRINTK (KERN_DEBUG "*** ecp_read_block_pio: reading one byte from the FIFO\n"); + DPRINTK(KERN_DEBUG + "*** ecp_read_block_pio: reading one byte from the FIFO\n"); /* FIFO not filled. We will cycle this loop for a while - * and either the peripheral will fill it faster, - * tripping a fast empty with insb, or we empty it. */ - *bufp++ = inb (fifo); + * and either the peripheral will fill it faster, + * tripping a fast empty with insb, or we empty it. */ + *bufp++ = inb(fifo); left--; } /* scoop up anything left in the FIFO */ - while (left && !(inb (ECONTROL (port) & 0x01))) { - *bufp++ = inb (fifo); + while (left && !(inb(ECONTROL(port) & 0x01))) { + *bufp++ = inb(fifo); left--; } port->ieee1284.phase = IEEE1284_PH_REV_IDLE; -dump_parport_state ("rev idle2", port); + dump_parport_state("rev idle2", port); out_no_data: /* Go to forward idle mode to shut the peripheral up (event 47). */ - parport_frob_control (port, PARPORT_CONTROL_INIT, PARPORT_CONTROL_INIT); + parport_frob_control(port, PARPORT_CONTROL_INIT, PARPORT_CONTROL_INIT); /* event 49: PError goes high */ - r = parport_wait_peripheral (port, + r = parport_wait_peripheral(port, PARPORT_STATUS_PAPEROUT, PARPORT_STATUS_PAPEROUT); if (r) { - printk (KERN_DEBUG + printk(KERN_DEBUG "%s: PE timeout FWDIDLE (%d) in ecp_read_block_pio\n", port->name, r); } @@ -1141,14 +1157,14 @@ out_no_data: /* Finish up. */ { - int lost = get_fifo_residue (port); + int lost = get_fifo_residue(port); if (lost) /* Shouldn't happen with compliant peripherals. */ - printk (KERN_DEBUG "%s: DATA LOSS (%d bytes)!\n", + printk(KERN_DEBUG "%s: DATA LOSS (%d bytes)!\n", port->name, lost); } -dump_parport_state ("fwd idle", port); + dump_parport_state("fwd idle", port); return length - left; } #endif /* 0 */ @@ -1164,8 +1180,7 @@ dump_parport_state ("fwd idle", port); /* GCC is not inlining extern inline function later overwriten to non-inline, so we use outlined_ variants here. */ -static const struct parport_operations parport_pc_ops = -{ +static const struct parport_operations parport_pc_ops = { .write_data = parport_pc_write_data, .read_data = parport_pc_read_data, @@ -1202,88 +1217,107 @@ static const struct parport_operations parport_pc_ops = }; #ifdef CONFIG_PARPORT_PC_SUPERIO + +static struct superio_struct *find_free_superio(void) +{ + int i; + for (i = 0; i < NR_SUPERIOS; i++) + if (superios[i].io == 0) + return &superios[i]; + return NULL; +} + + /* Super-IO chipset detection, Winbond, SMSC */ static void __devinit show_parconfig_smsc37c669(int io, int key) { - int cr1,cr4,cra,cr23,cr26,cr27,i=0; - static const char *const modes[]={ + int cr1, cr4, cra, cr23, cr26, cr27; + struct superio_struct *s; + + static const char *const modes[] = { "SPP and Bidirectional (PS/2)", "EPP and SPP", "ECP", "ECP and EPP" }; - outb(key,io); - outb(key,io); - outb(1,io); - cr1=inb(io+1); - outb(4,io); - cr4=inb(io+1); - outb(0x0a,io); - cra=inb(io+1); - outb(0x23,io); - cr23=inb(io+1); - outb(0x26,io); - cr26=inb(io+1); - outb(0x27,io); - cr27=inb(io+1); - outb(0xaa,io); + outb(key, io); + outb(key, io); + outb(1, io); + cr1 = inb(io + 1); + outb(4, io); + cr4 = inb(io + 1); + outb(0x0a, io); + cra = inb(io + 1); + outb(0x23, io); + cr23 = inb(io + 1); + outb(0x26, io); + cr26 = inb(io + 1); + outb(0x27, io); + cr27 = inb(io + 1); + outb(0xaa, io); if (verbose_probing) { - printk (KERN_INFO "SMSC 37c669 LPT Config: cr_1=0x%02x, 4=0x%02x, " + printk(KERN_INFO + "SMSC 37c669 LPT Config: cr_1=0x%02x, 4=0x%02x, " "A=0x%2x, 23=0x%02x, 26=0x%02x, 27=0x%02x\n", - cr1,cr4,cra,cr23,cr26,cr27); - + cr1, cr4, cra, cr23, cr26, cr27); + /* The documentation calls DMA and IRQ-Lines by letters, so the board maker can/will wire them appropriately/randomly... G=reserved H=IDE-irq, */ - printk (KERN_INFO "SMSC LPT Config: io=0x%04x, irq=%c, dma=%c, " - "fifo threshold=%d\n", cr23*4, - (cr27 &0x0f) ? 'A'-1+(cr27 &0x0f): '-', - (cr26 &0x0f) ? 'A'-1+(cr26 &0x0f): '-', cra & 0x0f); + printk(KERN_INFO + "SMSC LPT Config: io=0x%04x, irq=%c, dma=%c, fifo threshold=%d\n", + cr23 * 4, + (cr27 & 0x0f) ? 'A' - 1 + (cr27 & 0x0f) : '-', + (cr26 & 0x0f) ? 'A' - 1 + (cr26 & 0x0f) : '-', + cra & 0x0f); printk(KERN_INFO "SMSC LPT Config: enabled=%s power=%s\n", - (cr23*4 >=0x100) ?"yes":"no", (cr1 & 4) ? "yes" : "no"); - printk(KERN_INFO "SMSC LPT Config: Port mode=%s, EPP version =%s\n", - (cr1 & 0x08 ) ? "Standard mode only (SPP)" : modes[cr4 & 0x03], - (cr4 & 0x40) ? "1.7" : "1.9"); + (cr23 * 4 >= 0x100) ? "yes" : "no", + (cr1 & 4) ? "yes" : "no"); + printk(KERN_INFO + "SMSC LPT Config: Port mode=%s, EPP version =%s\n", + (cr1 & 0x08) ? "Standard mode only (SPP)" + : modes[cr4 & 0x03], + (cr4 & 0x40) ? "1.7" : "1.9"); } - + /* Heuristics ! BIOS setup for this mainboard device limits the choices to standard settings, i.e. io-address and IRQ are related, however DMA can be 1 or 3, assume DMA_A=DMA1, DMA_C=DMA3 (this is true e.g. for TYAN 1564D Tomcat IV) */ - if(cr23*4 >=0x100) { /* if active */ - while((superios[i].io!= 0) && (i<NR_SUPERIOS)) - i++; - if(i==NR_SUPERIOS) + if (cr23 * 4 >= 0x100) { /* if active */ + s = find_free_superio(); + if (s == NULL) printk(KERN_INFO "Super-IO: too many chips!\n"); else { int d; - switch (cr23*4) { - case 0x3bc: - superios[i].io = 0x3bc; - superios[i].irq = 7; - break; - case 0x378: - superios[i].io = 0x378; - superios[i].irq = 7; - break; - case 0x278: - superios[i].io = 0x278; - superios[i].irq = 5; + switch (cr23 * 4) { + case 0x3bc: + s->io = 0x3bc; + s->irq = 7; + break; + case 0x378: + s->io = 0x378; + s->irq = 7; + break; + case 0x278: + s->io = 0x278; + s->irq = 5; } - d=(cr26 &0x0f); - if((d==1) || (d==3)) - superios[i].dma= d; + d = (cr26 & 0x0f); + if (d == 1 || d == 3) + s->dma = d; else - superios[i].dma= PARPORT_DMA_NONE; + s->dma = PARPORT_DMA_NONE; } - } + } } static void __devinit show_parconfig_winbond(int io, int key) { - int cr30,cr60,cr61,cr70,cr74,crf0,i=0; + int cr30, cr60, cr61, cr70, cr74, crf0; + struct superio_struct *s; static const char *const modes[] = { "Standard (SPP) and Bidirectional(PS/2)", /* 0 */ "EPP-1.9 and SPP", @@ -1296,110 +1330,134 @@ static void __devinit show_parconfig_winbond(int io, int key) static char *const irqtypes[] = { "pulsed low, high-Z", "follows nACK" }; - + /* The registers are called compatible-PnP because the - register layout is modelled after ISA-PnP, the access - method is just another ... */ - outb(key,io); - outb(key,io); - outb(0x07,io); /* Register 7: Select Logical Device */ - outb(0x01,io+1); /* LD1 is Parallel Port */ - outb(0x30,io); - cr30=inb(io+1); - outb(0x60,io); - cr60=inb(io+1); - outb(0x61,io); - cr61=inb(io+1); - outb(0x70,io); - cr70=inb(io+1); - outb(0x74,io); - cr74=inb(io+1); - outb(0xf0,io); - crf0=inb(io+1); - outb(0xaa,io); + register layout is modelled after ISA-PnP, the access + method is just another ... */ + outb(key, io); + outb(key, io); + outb(0x07, io); /* Register 7: Select Logical Device */ + outb(0x01, io + 1); /* LD1 is Parallel Port */ + outb(0x30, io); + cr30 = inb(io + 1); + outb(0x60, io); + cr60 = inb(io + 1); + outb(0x61, io); + cr61 = inb(io + 1); + outb(0x70, io); + cr70 = inb(io + 1); + outb(0x74, io); + cr74 = inb(io + 1); + outb(0xf0, io); + crf0 = inb(io + 1); + outb(0xaa, io); if (verbose_probing) { - printk(KERN_INFO "Winbond LPT Config: cr_30=%02x 60,61=%02x%02x " - "70=%02x 74=%02x, f0=%02x\n", cr30,cr60,cr61,cr70,cr74,crf0); - printk(KERN_INFO "Winbond LPT Config: active=%s, io=0x%02x%02x irq=%d, ", - (cr30 & 0x01) ? "yes":"no", cr60,cr61,cr70&0x0f ); + printk(KERN_INFO + "Winbond LPT Config: cr_30=%02x 60,61=%02x%02x 70=%02x 74=%02x, f0=%02x\n", + cr30, cr60, cr61, cr70, cr74, crf0); + printk(KERN_INFO "Winbond LPT Config: active=%s, io=0x%02x%02x irq=%d, ", + (cr30 & 0x01) ? "yes" : "no", cr60, cr61, cr70 & 0x0f); if ((cr74 & 0x07) > 3) printk("dma=none\n"); else - printk("dma=%d\n",cr74 & 0x07); - printk(KERN_INFO "Winbond LPT Config: irqtype=%s, ECP fifo threshold=%d\n", - irqtypes[crf0>>7], (crf0>>3)&0x0f); - printk(KERN_INFO "Winbond LPT Config: Port mode=%s\n", modes[crf0 & 0x07]); + printk("dma=%d\n", cr74 & 0x07); + printk(KERN_INFO + "Winbond LPT Config: irqtype=%s, ECP fifo threshold=%d\n", + irqtypes[crf0>>7], (crf0>>3)&0x0f); + printk(KERN_INFO "Winbond LPT Config: Port mode=%s\n", + modes[crf0 & 0x07]); } - if(cr30 & 0x01) { /* the settings can be interrogated later ... */ - while((superios[i].io!= 0) && (i<NR_SUPERIOS)) - i++; - if(i==NR_SUPERIOS) + if (cr30 & 0x01) { /* the settings can be interrogated later ... */ + s = find_free_superio(); + if (s == NULL) printk(KERN_INFO "Super-IO: too many chips!\n"); else { - superios[i].io = (cr60<<8)|cr61; - superios[i].irq = cr70&0x0f; - superios[i].dma = (((cr74 & 0x07) > 3) ? + s->io = (cr60 << 8) | cr61; + s->irq = cr70 & 0x0f; + s->dma = (((cr74 & 0x07) > 3) ? PARPORT_DMA_NONE : (cr74 & 0x07)); } } } -static void __devinit decode_winbond(int efer, int key, int devid, int devrev, int oldid) +static void __devinit decode_winbond(int efer, int key, int devid, + int devrev, int oldid) { const char *type = "unknown"; - int id,progif=2; + int id, progif = 2; if (devid == devrev) /* simple heuristics, we happened to read some - non-winbond register */ + non-winbond register */ return; - id=(devid<<8) | devrev; + id = (devid << 8) | devrev; /* Values are from public data sheets pdf files, I can just - confirm 83977TF is correct :-) */ - if (id == 0x9771) type="83977F/AF"; - else if (id == 0x9773) type="83977TF / SMSC 97w33x/97w34x"; - else if (id == 0x9774) type="83977ATF"; - else if ((id & ~0x0f) == 0x5270) type="83977CTF / SMSC 97w36x"; - else if ((id & ~0x0f) == 0x52f0) type="83977EF / SMSC 97w35x"; - else if ((id & ~0x0f) == 0x5210) type="83627"; - else if ((id & ~0x0f) == 0x6010) type="83697HF"; - else if ((oldid &0x0f ) == 0x0a) { type="83877F"; progif=1;} - else if ((oldid &0x0f ) == 0x0b) { type="83877AF"; progif=1;} - else if ((oldid &0x0f ) == 0x0c) { type="83877TF"; progif=1;} - else if ((oldid &0x0f ) == 0x0d) { type="83877ATF"; progif=1;} - else progif=0; + confirm 83977TF is correct :-) */ + if (id == 0x9771) + type = "83977F/AF"; + else if (id == 0x9773) + type = "83977TF / SMSC 97w33x/97w34x"; + else if (id == 0x9774) + type = "83977ATF"; + else if ((id & ~0x0f) == 0x5270) + type = "83977CTF / SMSC 97w36x"; + else if ((id & ~0x0f) == 0x52f0) + type = "83977EF / SMSC 97w35x"; + else if ((id & ~0x0f) == 0x5210) + type = "83627"; + else if ((id & ~0x0f) == 0x6010) + type = "83697HF"; + else if ((oldid & 0x0f) == 0x0a) { + type = "83877F"; + progif = 1; + } else if ((oldid & 0x0f) == 0x0b) { + type = "83877AF"; + progif = 1; + } else if ((oldid & 0x0f) == 0x0c) { + type = "83877TF"; + progif = 1; + } else if ((oldid & 0x0f) == 0x0d) { + type = "83877ATF"; + progif = 1; + } else + progif = 0; if (verbose_probing) printk(KERN_INFO "Winbond chip at EFER=0x%x key=0x%02x " - "devid=%02x devrev=%02x oldid=%02x type=%s\n", + "devid=%02x devrev=%02x oldid=%02x type=%s\n", efer, key, devid, devrev, oldid, type); if (progif == 2) - show_parconfig_winbond(efer,key); + show_parconfig_winbond(efer, key); } static void __devinit decode_smsc(int efer, int key, int devid, int devrev) { - const char *type = "unknown"; + const char *type = "unknown"; void (*func)(int io, int key); - int id; + int id; - if (devid == devrev) + if (devid == devrev) /* simple heuristics, we happened to read some - non-smsc register */ + non-smsc register */ return; - func=NULL; - id=(devid<<8) | devrev; + func = NULL; + id = (devid << 8) | devrev; - if (id==0x0302) {type="37c669"; func=show_parconfig_smsc37c669;} - else if (id==0x6582) type="37c665IR"; - else if (devid==0x65) type="37c665GT"; - else if (devid==0x66) type="37c666GT"; + if (id == 0x0302) { + type = "37c669"; + func = show_parconfig_smsc37c669; + } else if (id == 0x6582) + type = "37c665IR"; + else if (devid == 0x65) + type = "37c665GT"; + else if (devid == 0x66) + type = "37c666GT"; if (verbose_probing) printk(KERN_INFO "SMSC chip at EFER=0x%x " @@ -1407,138 +1465,138 @@ static void __devinit decode_smsc(int efer, int key, int devid, int devrev) efer, key, devid, devrev, type); if (func) - func(efer,key); + func(efer, key); } static void __devinit winbond_check(int io, int key) { - int devid,devrev,oldid,x_devid,x_devrev,x_oldid; + int devid, devrev, oldid, x_devid, x_devrev, x_oldid; if (!request_region(io, 3, __func__)) return; /* First probe without key */ - outb(0x20,io); - x_devid=inb(io+1); - outb(0x21,io); - x_devrev=inb(io+1); - outb(0x09,io); - x_oldid=inb(io+1); - - outb(key,io); - outb(key,io); /* Write Magic Sequence to EFER, extended - funtion enable register */ - outb(0x20,io); /* Write EFIR, extended function index register */ - devid=inb(io+1); /* Read EFDR, extended function data register */ - outb(0x21,io); - devrev=inb(io+1); - outb(0x09,io); - oldid=inb(io+1); - outb(0xaa,io); /* Magic Seal */ + outb(0x20, io); + x_devid = inb(io + 1); + outb(0x21, io); + x_devrev = inb(io + 1); + outb(0x09, io); + x_oldid = inb(io + 1); + + outb(key, io); + outb(key, io); /* Write Magic Sequence to EFER, extended + funtion enable register */ + outb(0x20, io); /* Write EFIR, extended function index register */ + devid = inb(io + 1); /* Read EFDR, extended function data register */ + outb(0x21, io); + devrev = inb(io + 1); + outb(0x09, io); + oldid = inb(io + 1); + outb(0xaa, io); /* Magic Seal */ if ((x_devid == devid) && (x_devrev == devrev) && (x_oldid == oldid)) goto out; /* protection against false positives */ - decode_winbond(io,key,devid,devrev,oldid); + decode_winbond(io, key, devid, devrev, oldid); out: release_region(io, 3); } -static void __devinit winbond_check2(int io,int key) +static void __devinit winbond_check2(int io, int key) { - int devid,devrev,oldid,x_devid,x_devrev,x_oldid; + int devid, devrev, oldid, x_devid, x_devrev, x_oldid; if (!request_region(io, 3, __func__)) return; /* First probe without the key */ - outb(0x20,io+2); - x_devid=inb(io+2); - outb(0x21,io+1); - x_devrev=inb(io+2); - outb(0x09,io+1); - x_oldid=inb(io+2); - - outb(key,io); /* Write Magic Byte to EFER, extended - funtion enable register */ - outb(0x20,io+2); /* Write EFIR, extended function index register */ - devid=inb(io+2); /* Read EFDR, extended function data register */ - outb(0x21,io+1); - devrev=inb(io+2); - outb(0x09,io+1); - oldid=inb(io+2); - outb(0xaa,io); /* Magic Seal */ - - if ((x_devid == devid) && (x_devrev == devrev) && (x_oldid == oldid)) + outb(0x20, io + 2); + x_devid = inb(io + 2); + outb(0x21, io + 1); + x_devrev = inb(io + 2); + outb(0x09, io + 1); + x_oldid = inb(io + 2); + + outb(key, io); /* Write Magic Byte to EFER, extended + funtion enable register */ + outb(0x20, io + 2); /* Write EFIR, extended function index register */ + devid = inb(io + 2); /* Read EFDR, extended function data register */ + outb(0x21, io + 1); + devrev = inb(io + 2); + outb(0x09, io + 1); + oldid = inb(io + 2); + outb(0xaa, io); /* Magic Seal */ + + if (x_devid == devid && x_devrev == devrev && x_oldid == oldid) goto out; /* protection against false positives */ - decode_winbond(io,key,devid,devrev,oldid); + decode_winbond(io, key, devid, devrev, oldid); out: release_region(io, 3); } static void __devinit smsc_check(int io, int key) { - int id,rev,oldid,oldrev,x_id,x_rev,x_oldid,x_oldrev; + int id, rev, oldid, oldrev, x_id, x_rev, x_oldid, x_oldrev; if (!request_region(io, 3, __func__)) return; /* First probe without the key */ - outb(0x0d,io); - x_oldid=inb(io+1); - outb(0x0e,io); - x_oldrev=inb(io+1); - outb(0x20,io); - x_id=inb(io+1); - outb(0x21,io); - x_rev=inb(io+1); - - outb(key,io); - outb(key,io); /* Write Magic Sequence to EFER, extended - funtion enable register */ - outb(0x0d,io); /* Write EFIR, extended function index register */ - oldid=inb(io+1); /* Read EFDR, extended function data register */ - outb(0x0e,io); - oldrev=inb(io+1); - outb(0x20,io); - id=inb(io+1); - outb(0x21,io); - rev=inb(io+1); - outb(0xaa,io); /* Magic Seal */ - - if ((x_id == id) && (x_oldrev == oldrev) && - (x_oldid == oldid) && (x_rev == rev)) + outb(0x0d, io); + x_oldid = inb(io + 1); + outb(0x0e, io); + x_oldrev = inb(io + 1); + outb(0x20, io); + x_id = inb(io + 1); + outb(0x21, io); + x_rev = inb(io + 1); + + outb(key, io); + outb(key, io); /* Write Magic Sequence to EFER, extended + funtion enable register */ + outb(0x0d, io); /* Write EFIR, extended function index register */ + oldid = inb(io + 1); /* Read EFDR, extended function data register */ + outb(0x0e, io); + oldrev = inb(io + 1); + outb(0x20, io); + id = inb(io + 1); + outb(0x21, io); + rev = inb(io + 1); + outb(0xaa, io); /* Magic Seal */ + + if (x_id == id && x_oldrev == oldrev && + x_oldid == oldid && x_rev == rev) goto out; /* protection against false positives */ - decode_smsc(io,key,oldid,oldrev); + decode_smsc(io, key, oldid, oldrev); out: release_region(io, 3); } -static void __devinit detect_and_report_winbond (void) -{ +static void __devinit detect_and_report_winbond(void) +{ if (verbose_probing) printk(KERN_DEBUG "Winbond Super-IO detection, now testing ports 3F0,370,250,4E,2E ...\n"); - winbond_check(0x3f0,0x87); - winbond_check(0x370,0x87); - winbond_check(0x2e ,0x87); - winbond_check(0x4e ,0x87); - winbond_check(0x3f0,0x86); - winbond_check2(0x250,0x88); - winbond_check2(0x250,0x89); + winbond_check(0x3f0, 0x87); + winbond_check(0x370, 0x87); + winbond_check(0x2e , 0x87); + winbond_check(0x4e , 0x87); + winbond_check(0x3f0, 0x86); + winbond_check2(0x250, 0x88); + winbond_check2(0x250, 0x89); } -static void __devinit detect_and_report_smsc (void) +static void __devinit detect_and_report_smsc(void) { if (verbose_probing) printk(KERN_DEBUG "SMSC Super-IO detection, now testing Ports 2F0, 370 ...\n"); - smsc_check(0x3f0,0x55); - smsc_check(0x370,0x55); - smsc_check(0x3f0,0x44); - smsc_check(0x370,0x44); + smsc_check(0x3f0, 0x55); + smsc_check(0x370, 0x55); + smsc_check(0x3f0, 0x44); + smsc_check(0x370, 0x44); } static void __devinit detect_and_report_it87(void) @@ -1573,34 +1631,39 @@ static void __devinit detect_and_report_it87(void) } #endif /* CONFIG_PARPORT_PC_SUPERIO */ -static int get_superio_dma (struct parport *p) +static struct superio_struct *find_superio(struct parport *p) { - int i=0; - while( (superios[i].io != p->base) && (i<NR_SUPERIOS)) - i++; - if (i!=NR_SUPERIOS) - return superios[i].dma; + int i; + for (i = 0; i < NR_SUPERIOS; i++) + if (superios[i].io != p->base) + return &superios[i]; + return NULL; +} + +static int get_superio_dma(struct parport *p) +{ + struct superio_struct *s = find_superio(p); + if (s) + return s->dma; return PARPORT_DMA_NONE; } -static int get_superio_irq (struct parport *p) +static int get_superio_irq(struct parport *p) { - int i=0; - while( (superios[i].io != p->base) && (i<NR_SUPERIOS)) - i++; - if (i!=NR_SUPERIOS) - return superios[i].irq; - return PARPORT_IRQ_NONE; + struct superio_struct *s = find_superio(p); + if (s) + return s->irq; + return PARPORT_IRQ_NONE; } - + /* --- Mode detection ------------------------------------- */ /* * Checks for port existence, all ports support SPP MODE - * Returns: + * Returns: * 0 : No parallel port at this address - * PARPORT_MODE_PCSPP : SPP port detected + * PARPORT_MODE_PCSPP : SPP port detected * (if the user specified an ioport himself, * this shall always be the case!) * @@ -1610,7 +1673,7 @@ static int parport_SPP_supported(struct parport *pb) unsigned char r, w; /* - * first clear an eventually pending EPP timeout + * first clear an eventually pending EPP timeout * I (sailer@ife.ee.ethz.ch) have an SMSC chipset * that does not even respond to SPP cycles if an EPP * timeout is pending @@ -1619,19 +1682,19 @@ static int parport_SPP_supported(struct parport *pb) /* Do a simple read-write test to make sure the port exists. */ w = 0xc; - outb (w, CONTROL (pb)); + outb(w, CONTROL(pb)); /* Is there a control register that we can read from? Some * ports don't allow reads, so read_control just returns a * software copy. Some ports _do_ allow reads, so bypass the * software copy here. In addition, some bits aren't * writable. */ - r = inb (CONTROL (pb)); + r = inb(CONTROL(pb)); if ((r & 0xf) == w) { w = 0xe; - outb (w, CONTROL (pb)); - r = inb (CONTROL (pb)); - outb (0xc, CONTROL (pb)); + outb(w, CONTROL(pb)); + r = inb(CONTROL(pb)); + outb(0xc, CONTROL(pb)); if ((r & 0xf) == w) return PARPORT_MODE_PCSPP; } @@ -1639,18 +1702,18 @@ static int parport_SPP_supported(struct parport *pb) if (user_specified) /* That didn't work, but the user thinks there's a * port here. */ - printk (KERN_INFO "parport 0x%lx (WARNING): CTR: " + printk(KERN_INFO "parport 0x%lx (WARNING): CTR: " "wrote 0x%02x, read 0x%02x\n", pb->base, w, r); /* Try the data register. The data lines aren't tri-stated at * this stage, so we expect back what we wrote. */ w = 0xaa; - parport_pc_write_data (pb, w); - r = parport_pc_read_data (pb); + parport_pc_write_data(pb, w); + r = parport_pc_read_data(pb); if (r == w) { w = 0x55; - parport_pc_write_data (pb, w); - r = parport_pc_read_data (pb); + parport_pc_write_data(pb, w); + r = parport_pc_read_data(pb); if (r == w) return PARPORT_MODE_PCSPP; } @@ -1658,9 +1721,9 @@ static int parport_SPP_supported(struct parport *pb) if (user_specified) { /* Didn't work, but the user is convinced this is the * place. */ - printk (KERN_INFO "parport 0x%lx (WARNING): DATA: " + printk(KERN_INFO "parport 0x%lx (WARNING): DATA: " "wrote 0x%02x, read 0x%02x\n", pb->base, w, r); - printk (KERN_INFO "parport 0x%lx: You gave this address, " + printk(KERN_INFO "parport 0x%lx: You gave this address, " "but there is probably no parallel port there!\n", pb->base); } @@ -1691,33 +1754,33 @@ static int parport_ECR_present(struct parport *pb) struct parport_pc_private *priv = pb->private_data; unsigned char r = 0xc; - outb (r, CONTROL (pb)); - if ((inb (ECONTROL (pb)) & 0x3) == (r & 0x3)) { - outb (r ^ 0x2, CONTROL (pb)); /* Toggle bit 1 */ + outb(r, CONTROL(pb)); + if ((inb(ECONTROL(pb)) & 0x3) == (r & 0x3)) { + outb(r ^ 0x2, CONTROL(pb)); /* Toggle bit 1 */ - r = inb (CONTROL (pb)); - if ((inb (ECONTROL (pb)) & 0x2) == (r & 0x2)) + r = inb(CONTROL(pb)); + if ((inb(ECONTROL(pb)) & 0x2) == (r & 0x2)) goto no_reg; /* Sure that no ECR register exists */ } - - if ((inb (ECONTROL (pb)) & 0x3 ) != 0x1) + + if ((inb(ECONTROL(pb)) & 0x3) != 0x1) goto no_reg; - ECR_WRITE (pb, 0x34); - if (inb (ECONTROL (pb)) != 0x35) + ECR_WRITE(pb, 0x34); + if (inb(ECONTROL(pb)) != 0x35) goto no_reg; priv->ecr = 1; - outb (0xc, CONTROL (pb)); - + outb(0xc, CONTROL(pb)); + /* Go to mode 000 */ - frob_set_mode (pb, ECR_SPP); + frob_set_mode(pb, ECR_SPP); return 1; no_reg: - outb (0xc, CONTROL (pb)); - return 0; + outb(0xc, CONTROL(pb)); + return 0; } #ifdef CONFIG_PARPORT_1284 @@ -1727,7 +1790,7 @@ static int parport_ECR_present(struct parport *pb) * allows us to read data from the data lines. In theory we would get back * 0xff but any peripheral attached to the port may drag some or all of the * lines down to zero. So if we get back anything that isn't the contents - * of the data register we deem PS/2 support to be present. + * of the data register we deem PS/2 support to be present. * * Some SPP ports have "half PS/2" ability - you can't turn off the line * drivers, but an external peripheral with sufficiently beefy drivers of @@ -1735,26 +1798,28 @@ static int parport_ECR_present(struct parport *pb) * where they can then be read back as normal. Ports with this property * and the right type of device attached are likely to fail the SPP test, * (as they will appear to have stuck bits) and so the fact that they might - * be misdetected here is rather academic. + * be misdetected here is rather academic. */ static int parport_PS2_supported(struct parport *pb) { int ok = 0; - + clear_epp_timeout(pb); /* try to tri-state the buffer */ - parport_pc_data_reverse (pb); - + parport_pc_data_reverse(pb); + parport_pc_write_data(pb, 0x55); - if (parport_pc_read_data(pb) != 0x55) ok++; + if (parport_pc_read_data(pb) != 0x55) + ok++; parport_pc_write_data(pb, 0xaa); - if (parport_pc_read_data(pb) != 0xaa) ok++; + if (parport_pc_read_data(pb) != 0xaa) + ok++; /* cancel input mode */ - parport_pc_data_forward (pb); + parport_pc_data_forward(pb); if (ok) { pb->modes |= PARPORT_MODE_TRISTATE; @@ -1773,68 +1838,68 @@ static int parport_ECP_supported(struct parport *pb) int config, configb; int pword; struct parport_pc_private *priv = pb->private_data; - /* Translate ECP intrLine to ISA irq value */ - static const int intrline[]= { 0, 7, 9, 10, 11, 14, 15, 5 }; + /* Translate ECP intrLine to ISA irq value */ + static const int intrline[] = { 0, 7, 9, 10, 11, 14, 15, 5 }; /* If there is no ECR, we have no hope of supporting ECP. */ if (!priv->ecr) return 0; /* Find out FIFO depth */ - ECR_WRITE (pb, ECR_SPP << 5); /* Reset FIFO */ - ECR_WRITE (pb, ECR_TST << 5); /* TEST FIFO */ - for (i=0; i < 1024 && !(inb (ECONTROL (pb)) & 0x02); i++) - outb (0xaa, FIFO (pb)); + ECR_WRITE(pb, ECR_SPP << 5); /* Reset FIFO */ + ECR_WRITE(pb, ECR_TST << 5); /* TEST FIFO */ + for (i = 0; i < 1024 && !(inb(ECONTROL(pb)) & 0x02); i++) + outb(0xaa, FIFO(pb)); /* * Using LGS chipset it uses ECR register, but * it doesn't support ECP or FIFO MODE */ if (i == 1024) { - ECR_WRITE (pb, ECR_SPP << 5); + ECR_WRITE(pb, ECR_SPP << 5); return 0; } priv->fifo_depth = i; if (verbose_probing) - printk (KERN_DEBUG "0x%lx: FIFO is %d bytes\n", pb->base, i); + printk(KERN_DEBUG "0x%lx: FIFO is %d bytes\n", pb->base, i); /* Find out writeIntrThreshold */ - frob_econtrol (pb, 1<<2, 1<<2); - frob_econtrol (pb, 1<<2, 0); + frob_econtrol(pb, 1<<2, 1<<2); + frob_econtrol(pb, 1<<2, 0); for (i = 1; i <= priv->fifo_depth; i++) { - inb (FIFO (pb)); - udelay (50); - if (inb (ECONTROL (pb)) & (1<<2)) + inb(FIFO(pb)); + udelay(50); + if (inb(ECONTROL(pb)) & (1<<2)) break; } if (i <= priv->fifo_depth) { if (verbose_probing) - printk (KERN_DEBUG "0x%lx: writeIntrThreshold is %d\n", + printk(KERN_DEBUG "0x%lx: writeIntrThreshold is %d\n", pb->base, i); } else /* Number of bytes we know we can write if we get an - interrupt. */ + interrupt. */ i = 0; priv->writeIntrThreshold = i; /* Find out readIntrThreshold */ - frob_set_mode (pb, ECR_PS2); /* Reset FIFO and enable PS2 */ - parport_pc_data_reverse (pb); /* Must be in PS2 mode */ - frob_set_mode (pb, ECR_TST); /* Test FIFO */ - frob_econtrol (pb, 1<<2, 1<<2); - frob_econtrol (pb, 1<<2, 0); + frob_set_mode(pb, ECR_PS2); /* Reset FIFO and enable PS2 */ + parport_pc_data_reverse(pb); /* Must be in PS2 mode */ + frob_set_mode(pb, ECR_TST); /* Test FIFO */ + frob_econtrol(pb, 1<<2, 1<<2); + frob_econtrol(pb, 1<<2, 0); for (i = 1; i <= priv->fifo_depth; i++) { - outb (0xaa, FIFO (pb)); - if (inb (ECONTROL (pb)) & (1<<2)) + outb(0xaa, FIFO(pb)); + if (inb(ECONTROL(pb)) & (1<<2)) break; } if (i <= priv->fifo_depth) { if (verbose_probing) - printk (KERN_INFO "0x%lx: readIntrThreshold is %d\n", + printk(KERN_INFO "0x%lx: readIntrThreshold is %d\n", pb->base, i); } else /* Number of bytes we can read if we get an interrupt. */ @@ -1842,23 +1907,23 @@ static int parport_ECP_supported(struct parport *pb) priv->readIntrThreshold = i; - ECR_WRITE (pb, ECR_SPP << 5); /* Reset FIFO */ - ECR_WRITE (pb, 0xf4); /* Configuration mode */ - config = inb (CONFIGA (pb)); + ECR_WRITE(pb, ECR_SPP << 5); /* Reset FIFO */ + ECR_WRITE(pb, 0xf4); /* Configuration mode */ + config = inb(CONFIGA(pb)); pword = (config >> 4) & 0x7; switch (pword) { case 0: pword = 2; - printk (KERN_WARNING "0x%lx: Unsupported pword size!\n", + printk(KERN_WARNING "0x%lx: Unsupported pword size!\n", pb->base); break; case 2: pword = 4; - printk (KERN_WARNING "0x%lx: Unsupported pword size!\n", + printk(KERN_WARNING "0x%lx: Unsupported pword size!\n", pb->base); break; default: - printk (KERN_WARNING "0x%lx: Unknown implementation ID\n", + printk(KERN_WARNING "0x%lx: Unknown implementation ID\n", pb->base); /* Assume 1 */ case 1: @@ -1867,28 +1932,29 @@ static int parport_ECP_supported(struct parport *pb) priv->pword = pword; if (verbose_probing) { - printk (KERN_DEBUG "0x%lx: PWord is %d bits\n", pb->base, 8 * pword); - - printk (KERN_DEBUG "0x%lx: Interrupts are ISA-%s\n", pb->base, + printk(KERN_DEBUG "0x%lx: PWord is %d bits\n", + pb->base, 8 * pword); + + printk(KERN_DEBUG "0x%lx: Interrupts are ISA-%s\n", pb->base, config & 0x80 ? "Level" : "Pulses"); - configb = inb (CONFIGB (pb)); - printk (KERN_DEBUG "0x%lx: ECP port cfgA=0x%02x cfgB=0x%02x\n", + configb = inb(CONFIGB(pb)); + printk(KERN_DEBUG "0x%lx: ECP port cfgA=0x%02x cfgB=0x%02x\n", pb->base, config, configb); - printk (KERN_DEBUG "0x%lx: ECP settings irq=", pb->base); - if ((configb >>3) & 0x07) - printk("%d",intrline[(configb >>3) & 0x07]); + printk(KERN_DEBUG "0x%lx: ECP settings irq=", pb->base); + if ((configb >> 3) & 0x07) + printk("%d", intrline[(configb >> 3) & 0x07]); else printk("<none or set by other means>"); - printk (" dma="); - if( (configb & 0x03 ) == 0x00) + printk(" dma="); + if ((configb & 0x03) == 0x00) printk("<none or set by other means>\n"); else - printk("%d\n",configb & 0x07); + printk("%d\n", configb & 0x07); } /* Go back to mode 000 */ - frob_set_mode (pb, ECR_SPP); + frob_set_mode(pb, ECR_SPP); return 1; } @@ -1903,10 +1969,10 @@ static int parport_ECPPS2_supported(struct parport *pb) if (!priv->ecr) return 0; - oecr = inb (ECONTROL (pb)); - ECR_WRITE (pb, ECR_PS2 << 5); + oecr = inb(ECONTROL(pb)); + ECR_WRITE(pb, ECR_PS2 << 5); result = parport_PS2_supported(pb); - ECR_WRITE (pb, oecr); + ECR_WRITE(pb, oecr); return result; } @@ -1930,16 +1996,15 @@ static int parport_EPP_supported(struct parport *pb) */ /* If EPP timeout bit clear then EPP available */ - if (!clear_epp_timeout(pb)) { + if (!clear_epp_timeout(pb)) return 0; /* No way to clear timeout */ - } /* Check for Intel bug. */ if (priv->ecr) { unsigned char i; for (i = 0x00; i < 0x80; i += 0x20) { - ECR_WRITE (pb, i); - if (clear_epp_timeout (pb)) { + ECR_WRITE(pb, i); + if (clear_epp_timeout(pb)) { /* Phony EPP in ECP. */ return 0; } @@ -1963,17 +2028,16 @@ static int parport_ECPEPP_supported(struct parport *pb) int result; unsigned char oecr; - if (!priv->ecr) { + if (!priv->ecr) return 0; - } - oecr = inb (ECONTROL (pb)); + oecr = inb(ECONTROL(pb)); /* Search for SMC style EPP+ECP mode */ - ECR_WRITE (pb, 0x80); - outb (0x04, CONTROL (pb)); + ECR_WRITE(pb, 0x80); + outb(0x04, CONTROL(pb)); result = parport_EPP_supported(pb); - ECR_WRITE (pb, oecr); + ECR_WRITE(pb, oecr); if (result) { /* Set up access functions to use ECP+EPP hardware. */ @@ -1991,11 +2055,25 @@ static int parport_ECPEPP_supported(struct parport *pb) /* Don't bother probing for modes we know we won't use. */ static int __devinit parport_PS2_supported(struct parport *pb) { return 0; } #ifdef CONFIG_PARPORT_PC_FIFO -static int parport_ECP_supported(struct parport *pb) { return 0; } +static int parport_ECP_supported(struct parport *pb) +{ + return 0; +} #endif -static int __devinit parport_EPP_supported(struct parport *pb) { return 0; } -static int __devinit parport_ECPEPP_supported(struct parport *pb){return 0;} -static int __devinit parport_ECPPS2_supported(struct parport *pb){return 0;} +static int __devinit parport_EPP_supported(struct parport *pb) +{ + return 0; +} + +static int __devinit parport_ECPEPP_supported(struct parport *pb) +{ + return 0; +} + +static int __devinit parport_ECPPS2_supported(struct parport *pb) +{ + return 0; +} #endif /* No IEEE 1284 support */ @@ -2005,17 +2083,17 @@ static int __devinit parport_ECPPS2_supported(struct parport *pb){return 0;} static int programmable_irq_support(struct parport *pb) { int irq, intrLine; - unsigned char oecr = inb (ECONTROL (pb)); + unsigned char oecr = inb(ECONTROL(pb)); static const int lookup[8] = { PARPORT_IRQ_NONE, 7, 9, 10, 11, 14, 15, 5 }; - ECR_WRITE (pb, ECR_CNF << 5); /* Configuration MODE */ + ECR_WRITE(pb, ECR_CNF << 5); /* Configuration MODE */ - intrLine = (inb (CONFIGB (pb)) >> 3) & 0x07; + intrLine = (inb(CONFIGB(pb)) >> 3) & 0x07; irq = lookup[intrLine]; - ECR_WRITE (pb, oecr); + ECR_WRITE(pb, oecr); return irq; } @@ -2025,17 +2103,17 @@ static int irq_probe_ECP(struct parport *pb) unsigned long irqs; irqs = probe_irq_on(); - - ECR_WRITE (pb, ECR_SPP << 5); /* Reset FIFO */ - ECR_WRITE (pb, (ECR_TST << 5) | 0x04); - ECR_WRITE (pb, ECR_TST << 5); + + ECR_WRITE(pb, ECR_SPP << 5); /* Reset FIFO */ + ECR_WRITE(pb, (ECR_TST << 5) | 0x04); + ECR_WRITE(pb, ECR_TST << 5); /* If Full FIFO sure that writeIntrThreshold is generated */ - for (i=0; i < 1024 && !(inb (ECONTROL (pb)) & 0x02) ; i++) - outb (0xaa, FIFO (pb)); - + for (i = 0; i < 1024 && !(inb(ECONTROL(pb)) & 0x02) ; i++) + outb(0xaa, FIFO(pb)); + pb->irq = probe_irq_off(irqs); - ECR_WRITE (pb, ECR_SPP << 5); + ECR_WRITE(pb, ECR_SPP << 5); if (pb->irq <= 0) pb->irq = PARPORT_IRQ_NONE; @@ -2045,7 +2123,7 @@ static int irq_probe_ECP(struct parport *pb) /* * This detection seems that only works in National Semiconductors - * This doesn't work in SMC, LGS, and Winbond + * This doesn't work in SMC, LGS, and Winbond */ static int irq_probe_EPP(struct parport *pb) { @@ -2056,16 +2134,16 @@ static int irq_probe_EPP(struct parport *pb) unsigned char oecr; if (pb->modes & PARPORT_MODE_PCECR) - oecr = inb (ECONTROL (pb)); + oecr = inb(ECONTROL(pb)); irqs = probe_irq_on(); if (pb->modes & PARPORT_MODE_PCECR) - frob_econtrol (pb, 0x10, 0x10); - + frob_econtrol(pb, 0x10, 0x10); + clear_epp_timeout(pb); - parport_pc_frob_control (pb, 0x20, 0x20); - parport_pc_frob_control (pb, 0x10, 0x10); + parport_pc_frob_control(pb, 0x20, 0x20); + parport_pc_frob_control(pb, 0x10, 0x10); clear_epp_timeout(pb); /* Device isn't expecting an EPP read @@ -2074,9 +2152,9 @@ static int irq_probe_EPP(struct parport *pb) parport_pc_read_epp(pb); udelay(20); - pb->irq = probe_irq_off (irqs); + pb->irq = probe_irq_off(irqs); if (pb->modes & PARPORT_MODE_PCECR) - ECR_WRITE (pb, oecr); + ECR_WRITE(pb, oecr); parport_pc_write_control(pb, 0xc); if (pb->irq <= 0) @@ -2133,28 +2211,28 @@ static int parport_irq_probe(struct parport *pb) /* --- DMA detection -------------------------------------- */ /* Only if chipset conforms to ECP ISA Interface Standard */ -static int programmable_dma_support (struct parport *p) +static int programmable_dma_support(struct parport *p) { - unsigned char oecr = inb (ECONTROL (p)); + unsigned char oecr = inb(ECONTROL(p)); int dma; - frob_set_mode (p, ECR_CNF); - - dma = inb (CONFIGB(p)) & 0x07; + frob_set_mode(p, ECR_CNF); + + dma = inb(CONFIGB(p)) & 0x07; /* 000: Indicates jumpered 8-bit DMA if read-only. 100: Indicates jumpered 16-bit DMA if read-only. */ if ((dma & 0x03) == 0) dma = PARPORT_DMA_NONE; - ECR_WRITE (p, oecr); + ECR_WRITE(p, oecr); return dma; } -static int parport_dma_probe (struct parport *p) +static int parport_dma_probe(struct parport *p) { const struct parport_pc_private *priv = p->private_data; - if (priv->ecr) - p->dma = programmable_dma_support(p); /* ask ECP chipset first */ + if (priv->ecr) /* ask ECP chipset first */ + p->dma = programmable_dma_support(p); if (p->dma == PARPORT_DMA_NONE) { /* ask known Super-IO chips proper, although these claim ECP compatible, some don't report their DMA @@ -2212,7 +2290,7 @@ struct parport *parport_pc_probe_port(unsigned long int base, if (!base_res) goto out4; - memcpy(ops, &parport_pc_ops, sizeof (struct parport_operations)); + memcpy(ops, &parport_pc_ops, sizeof(struct parport_operations)); priv->ctr = 0xc; priv->ctr_writable = ~0x10; priv->ecr = 0; @@ -2239,7 +2317,7 @@ struct parport *parport_pc_probe_port(unsigned long int base, if (!parport_EPP_supported(p)) parport_ECPEPP_supported(p); } - if (!parport_SPP_supported (p)) + if (!parport_SPP_supported(p)) /* No port. */ goto out5; if (priv->ecr) @@ -2247,7 +2325,7 @@ struct parport *parport_pc_probe_port(unsigned long int base, else parport_PS2_supported(p); - p->size = (p->modes & PARPORT_MODE_EPP)?8:3; + p->size = (p->modes & PARPORT_MODE_EPP) ? 8 : 3; printk(KERN_INFO "%s: PC-style at 0x%lx", p->name, p->base); if (p->base_hi && priv->ecr) @@ -2271,7 +2349,7 @@ struct parport *parport_pc_probe_port(unsigned long int base, } } if (p->dma == PARPORT_DMA_AUTO) /* To use DMA, giving the irq - is mandatory (see above) */ + is mandatory (see above) */ p->dma = PARPORT_DMA_NONE; #ifdef CONFIG_PARPORT_PC_FIFO @@ -2288,16 +2366,23 @@ struct parport *parport_pc_probe_port(unsigned long int base, if (p->dma != PARPORT_DMA_NONE) { printk(", dma %d", p->dma); p->modes |= PARPORT_MODE_DMA; - } - else printk(", using FIFO"); - } - else + } else + printk(", using FIFO"); + } else /* We can't use the DMA channel after all. */ p->dma = PARPORT_DMA_NONE; #endif /* Allowed to use FIFO/DMA */ printk(" ["); -#define printmode(x) {if(p->modes&PARPORT_MODE_##x){printk("%s%s",f?",":"",#x);f++;}} + +#define printmode(x) \ + {\ + if (p->modes & PARPORT_MODE_##x) {\ + printk("%s%s", f ? "," : "", #x);\ + f++;\ + } \ + } + { int f = 0; printmode(PCSPP); @@ -2309,10 +2394,10 @@ struct parport *parport_pc_probe_port(unsigned long int base, } #undef printmode #ifndef CONFIG_PARPORT_1284 - printk ("(,...)"); + printk("(,...)"); #endif /* CONFIG_PARPORT_1284 */ printk("]\n"); - if (probedirq != PARPORT_IRQ_NONE) + if (probedirq != PARPORT_IRQ_NONE) printk(KERN_INFO "%s: irq %d detected\n", p->name, probedirq); /* If No ECP release the ports grabbed above. */ @@ -2328,7 +2413,7 @@ struct parport *parport_pc_probe_port(unsigned long int base, if (p->irq != PARPORT_IRQ_NONE) { if (request_irq(p->irq, parport_irq_handler, irqflags, p->name, p)) { - printk (KERN_WARNING "%s: irq %d in use, " + printk(KERN_WARNING "%s: irq %d in use, " "resorting to polled operation\n", p->name, p->irq); p->irq = PARPORT_IRQ_NONE; @@ -2338,8 +2423,8 @@ struct parport *parport_pc_probe_port(unsigned long int base, #ifdef CONFIG_PARPORT_PC_FIFO #ifdef HAS_DMA if (p->dma != PARPORT_DMA_NONE) { - if (request_dma (p->dma, p->name)) { - printk (KERN_WARNING "%s: dma %d in use, " + if (request_dma(p->dma, p->name)) { + printk(KERN_WARNING "%s: dma %d in use, " "resorting to PIO operation\n", p->name, p->dma); p->dma = PARPORT_DMA_NONE; @@ -2349,8 +2434,8 @@ struct parport *parport_pc_probe_port(unsigned long int base, PAGE_SIZE, &priv->dma_handle, GFP_KERNEL); - if (! priv->dma_buf) { - printk (KERN_WARNING "%s: " + if (!priv->dma_buf) { + printk(KERN_WARNING "%s: " "cannot get buffer for DMA, " "resorting to PIO operation\n", p->name); @@ -2369,10 +2454,10 @@ struct parport *parport_pc_probe_port(unsigned long int base, * Put the ECP detected port in PS2 mode. * Do this also for ports that have ECR but don't do ECP. */ - ECR_WRITE (p, 0x34); + ECR_WRITE(p, 0x34); parport_pc_write_data(p, 0); - parport_pc_data_forward (p); + parport_pc_data_forward(p); /* Now that we've told the sharing engine about the port, and found out its characteristics, let the high-level drivers @@ -2380,7 +2465,7 @@ struct parport *parport_pc_probe_port(unsigned long int base, spin_lock(&ports_lock); list_add(&priv->list, &ports_list); spin_unlock(&ports_lock); - parport_announce_port (p); + parport_announce_port(p); return p; @@ -2393,18 +2478,17 @@ out5: out4: parport_put_port(p); out3: - kfree (priv); + kfree(priv); out2: - kfree (ops); + kfree(ops); out1: if (pdev) platform_device_unregister(pdev); return NULL; } +EXPORT_SYMBOL(parport_pc_probe_port); -EXPORT_SYMBOL (parport_pc_probe_port); - -void parport_pc_unregister_port (struct parport *p) +void parport_pc_unregister_port(struct parport *p) { struct parport_pc_private *priv = p->private_data; struct parport_operations *ops = p->ops; @@ -2430,17 +2514,16 @@ void parport_pc_unregister_port (struct parport *p) priv->dma_buf, priv->dma_handle); #endif - kfree (p->private_data); + kfree(p->private_data); parport_put_port(p); - kfree (ops); /* hope no-one cached it */ + kfree(ops); /* hope no-one cached it */ } - -EXPORT_SYMBOL (parport_pc_unregister_port); +EXPORT_SYMBOL(parport_pc_unregister_port); #ifdef CONFIG_PCI /* ITE support maintained by Rich Liu <richliu@poorman.org> */ -static int __devinit sio_ite_8872_probe (struct pci_dev *pdev, int autoirq, +static int __devinit sio_ite_8872_probe(struct pci_dev *pdev, int autoirq, int autodma, const struct parport_pc_via_data *via) { @@ -2452,73 +2535,74 @@ static int __devinit sio_ite_8872_probe (struct pci_dev *pdev, int autoirq, int irq; int i; - DPRINTK (KERN_DEBUG "sio_ite_8872_probe()\n"); - - // make sure which one chip - for(i = 0; i < 5; i++) { + DPRINTK(KERN_DEBUG "sio_ite_8872_probe()\n"); + + /* make sure which one chip */ + for (i = 0; i < 5; i++) { base_res = request_region(inta_addr[i], 32, "it887x"); if (base_res) { int test; - pci_write_config_dword (pdev, 0x60, + pci_write_config_dword(pdev, 0x60, 0xe5000000 | inta_addr[i]); - pci_write_config_dword (pdev, 0x78, + pci_write_config_dword(pdev, 0x78, 0x00000000 | inta_addr[i]); - test = inb (inta_addr[i]); - if (test != 0xff) break; + test = inb(inta_addr[i]); + if (test != 0xff) + break; release_region(inta_addr[i], 0x8); } } - if(i >= 5) { - printk (KERN_INFO "parport_pc: cannot find ITE8872 INTA\n"); + if (i >= 5) { + printk(KERN_INFO "parport_pc: cannot find ITE8872 INTA\n"); return 0; } - type = inb (inta_addr[i] + 0x18); + type = inb(inta_addr[i] + 0x18); type &= 0x0f; switch (type) { case 0x2: - printk (KERN_INFO "parport_pc: ITE8871 found (1P)\n"); + printk(KERN_INFO "parport_pc: ITE8871 found (1P)\n"); ite8872set = 0x64200000; break; case 0xa: - printk (KERN_INFO "parport_pc: ITE8875 found (1P)\n"); + printk(KERN_INFO "parport_pc: ITE8875 found (1P)\n"); ite8872set = 0x64200000; break; case 0xe: - printk (KERN_INFO "parport_pc: ITE8872 found (2S1P)\n"); + printk(KERN_INFO "parport_pc: ITE8872 found (2S1P)\n"); ite8872set = 0x64e00000; break; case 0x6: - printk (KERN_INFO "parport_pc: ITE8873 found (1S)\n"); + printk(KERN_INFO "parport_pc: ITE8873 found (1S)\n"); return 0; case 0x8: - DPRINTK (KERN_DEBUG "parport_pc: ITE8874 found (2S)\n"); + DPRINTK(KERN_DEBUG "parport_pc: ITE8874 found (2S)\n"); return 0; default: - printk (KERN_INFO "parport_pc: unknown ITE887x\n"); - printk (KERN_INFO "parport_pc: please mail 'lspci -nvv' " + printk(KERN_INFO "parport_pc: unknown ITE887x\n"); + printk(KERN_INFO "parport_pc: please mail 'lspci -nvv' " "output to Rich.Liu@ite.com.tw\n"); return 0; } - pci_read_config_byte (pdev, 0x3c, &ite8872_irq); - pci_read_config_dword (pdev, 0x1c, &ite8872_lpt); + pci_read_config_byte(pdev, 0x3c, &ite8872_irq); + pci_read_config_dword(pdev, 0x1c, &ite8872_lpt); ite8872_lpt &= 0x0000ff00; - pci_read_config_dword (pdev, 0x20, &ite8872_lpthi); + pci_read_config_dword(pdev, 0x20, &ite8872_lpthi); ite8872_lpthi &= 0x0000ff00; - pci_write_config_dword (pdev, 0x6c, 0xe3000000 | ite8872_lpt); - pci_write_config_dword (pdev, 0x70, 0xe3000000 | ite8872_lpthi); - pci_write_config_dword (pdev, 0x80, (ite8872_lpthi<<16) | ite8872_lpt); - // SET SPP&EPP , Parallel Port NO DMA , Enable All Function - // SET Parallel IRQ - pci_write_config_dword (pdev, 0x9c, + pci_write_config_dword(pdev, 0x6c, 0xe3000000 | ite8872_lpt); + pci_write_config_dword(pdev, 0x70, 0xe3000000 | ite8872_lpthi); + pci_write_config_dword(pdev, 0x80, (ite8872_lpthi<<16) | ite8872_lpt); + /* SET SPP&EPP , Parallel Port NO DMA , Enable All Function */ + /* SET Parallel IRQ */ + pci_write_config_dword(pdev, 0x9c, ite8872set | (ite8872_irq * 0x11111)); - DPRINTK (KERN_DEBUG "ITE887x: The IRQ is %d.\n", ite8872_irq); - DPRINTK (KERN_DEBUG "ITE887x: The PARALLEL I/O port is 0x%x.\n", + DPRINTK(KERN_DEBUG "ITE887x: The IRQ is %d.\n", ite8872_irq); + DPRINTK(KERN_DEBUG "ITE887x: The PARALLEL I/O port is 0x%x.\n", ite8872_lpt); - DPRINTK (KERN_DEBUG "ITE887x: The PARALLEL I/O porthi is 0x%x.\n", + DPRINTK(KERN_DEBUG "ITE887x: The PARALLEL I/O porthi is 0x%x.\n", ite8872_lpthi); /* Let the user (or defaults) steer us away from interrupts */ @@ -2530,14 +2614,14 @@ static int __devinit sio_ite_8872_probe (struct pci_dev *pdev, int autoirq, * Release the resource so that parport_pc_probe_port can get it. */ release_resource(base_res); - if (parport_pc_probe_port (ite8872_lpt, ite8872_lpthi, + if (parport_pc_probe_port(ite8872_lpt, ite8872_lpthi, irq, PARPORT_DMA_NONE, &pdev->dev, 0)) { - printk (KERN_INFO + printk(KERN_INFO "parport_pc: ITE 8872 parallel port: io=0x%X", - ite8872_lpt); + ite8872_lpt); if (irq != PARPORT_IRQ_NONE) - printk (", irq=%d", irq); - printk ("\n"); + printk(", irq=%d", irq); + printk("\n"); return 1; } @@ -2546,7 +2630,7 @@ static int __devinit sio_ite_8872_probe (struct pci_dev *pdev, int autoirq, /* VIA 8231 support by Pavel Fedin <sonic_amiga@rambler.ru> based on VIA 686a support code by Jeff Garzik <jgarzik@pobox.com> */ -static int __devinitdata parport_init_mode = 0; +static int __devinitdata parport_init_mode; /* Data for two known VIA chips */ static struct parport_pc_via_data via_686a_data __devinitdata = { @@ -2568,7 +2652,7 @@ static struct parport_pc_via_data via_8231_data __devinitdata = { 0xF6 }; -static int __devinit sio_via_probe (struct pci_dev *pdev, int autoirq, +static int __devinit sio_via_probe(struct pci_dev *pdev, int autoirq, int autodma, const struct parport_pc_via_data *via) { @@ -2580,38 +2664,38 @@ static int __devinit sio_via_probe (struct pci_dev *pdev, int autoirq, printk(KERN_DEBUG "parport_pc: VIA 686A/8231 detected\n"); - switch(parport_init_mode) - { + switch (parport_init_mode) { case 1: - printk(KERN_DEBUG "parport_pc: setting SPP mode\n"); - siofunc = VIA_FUNCTION_PARPORT_SPP; - break; + printk(KERN_DEBUG "parport_pc: setting SPP mode\n"); + siofunc = VIA_FUNCTION_PARPORT_SPP; + break; case 2: - printk(KERN_DEBUG "parport_pc: setting PS/2 mode\n"); - siofunc = VIA_FUNCTION_PARPORT_SPP; - ppcontrol = VIA_PARPORT_BIDIR; - break; + printk(KERN_DEBUG "parport_pc: setting PS/2 mode\n"); + siofunc = VIA_FUNCTION_PARPORT_SPP; + ppcontrol = VIA_PARPORT_BIDIR; + break; case 3: - printk(KERN_DEBUG "parport_pc: setting EPP mode\n"); - siofunc = VIA_FUNCTION_PARPORT_EPP; - ppcontrol = VIA_PARPORT_BIDIR; - have_epp = 1; - break; + printk(KERN_DEBUG "parport_pc: setting EPP mode\n"); + siofunc = VIA_FUNCTION_PARPORT_EPP; + ppcontrol = VIA_PARPORT_BIDIR; + have_epp = 1; + break; case 4: - printk(KERN_DEBUG "parport_pc: setting ECP mode\n"); - siofunc = VIA_FUNCTION_PARPORT_ECP; - ppcontrol = VIA_PARPORT_BIDIR; - break; + printk(KERN_DEBUG "parport_pc: setting ECP mode\n"); + siofunc = VIA_FUNCTION_PARPORT_ECP; + ppcontrol = VIA_PARPORT_BIDIR; + break; case 5: - printk(KERN_DEBUG "parport_pc: setting EPP+ECP mode\n"); - siofunc = VIA_FUNCTION_PARPORT_ECP; - ppcontrol = VIA_PARPORT_BIDIR|VIA_PARPORT_ECPEPP; - have_epp = 1; - break; - default: - printk(KERN_DEBUG "parport_pc: probing current configuration\n"); - siofunc = VIA_FUNCTION_PROBE; - break; + printk(KERN_DEBUG "parport_pc: setting EPP+ECP mode\n"); + siofunc = VIA_FUNCTION_PARPORT_ECP; + ppcontrol = VIA_PARPORT_BIDIR|VIA_PARPORT_ECPEPP; + have_epp = 1; + break; + default: + printk(KERN_DEBUG + "parport_pc: probing current configuration\n"); + siofunc = VIA_FUNCTION_PROBE; + break; } /* * unlock super i/o configuration @@ -2622,38 +2706,36 @@ static int __devinit sio_via_probe (struct pci_dev *pdev, int autoirq, /* Bits 1-0: Parallel Port Mode / Enable */ outb(via->viacfg_function, VIA_CONFIG_INDEX); - tmp = inb (VIA_CONFIG_DATA); + tmp = inb(VIA_CONFIG_DATA); /* Bit 5: EPP+ECP enable; bit 7: PS/2 bidirectional port enable */ outb(via->viacfg_parport_control, VIA_CONFIG_INDEX); - tmp2 = inb (VIA_CONFIG_DATA); - if (siofunc == VIA_FUNCTION_PROBE) - { - siofunc = tmp & VIA_FUNCTION_PARPORT_DISABLE; - ppcontrol = tmp2; + tmp2 = inb(VIA_CONFIG_DATA); + if (siofunc == VIA_FUNCTION_PROBE) { + siofunc = tmp & VIA_FUNCTION_PARPORT_DISABLE; + ppcontrol = tmp2; + } else { + tmp &= ~VIA_FUNCTION_PARPORT_DISABLE; + tmp |= siofunc; + outb(via->viacfg_function, VIA_CONFIG_INDEX); + outb(tmp, VIA_CONFIG_DATA); + tmp2 &= ~(VIA_PARPORT_BIDIR|VIA_PARPORT_ECPEPP); + tmp2 |= ppcontrol; + outb(via->viacfg_parport_control, VIA_CONFIG_INDEX); + outb(tmp2, VIA_CONFIG_DATA); } - else - { - tmp &= ~VIA_FUNCTION_PARPORT_DISABLE; - tmp |= siofunc; - outb(via->viacfg_function, VIA_CONFIG_INDEX); - outb(tmp, VIA_CONFIG_DATA); - tmp2 &= ~(VIA_PARPORT_BIDIR|VIA_PARPORT_ECPEPP); - tmp2 |= ppcontrol; - outb(via->viacfg_parport_control, VIA_CONFIG_INDEX); - outb(tmp2, VIA_CONFIG_DATA); - } - + /* Parallel Port I/O Base Address, bits 9-2 */ outb(via->viacfg_parport_base, VIA_CONFIG_INDEX); port1 = inb(VIA_CONFIG_DATA) << 2; - - printk (KERN_DEBUG "parport_pc: Current parallel port base: 0x%X\n",port1); - if ((port1 == 0x3BC) && have_epp) - { - outb(via->viacfg_parport_base, VIA_CONFIG_INDEX); - outb((0x378 >> 2), VIA_CONFIG_DATA); - printk(KERN_DEBUG "parport_pc: Parallel port base changed to 0x378\n"); - port1 = 0x378; + + printk(KERN_DEBUG "parport_pc: Current parallel port base: 0x%X\n", + port1); + if (port1 == 0x3BC && have_epp) { + outb(via->viacfg_parport_base, VIA_CONFIG_INDEX); + outb((0x378 >> 2), VIA_CONFIG_DATA); + printk(KERN_DEBUG + "parport_pc: Parallel port base changed to 0x378\n"); + port1 = 0x378; } /* @@ -2667,36 +2749,39 @@ static int __devinit sio_via_probe (struct pci_dev *pdev, int autoirq, printk(KERN_INFO "parport_pc: VIA parallel port disabled in BIOS\n"); return 0; } - + /* Bits 7-4: PnP Routing for Parallel Port IRQ */ pci_read_config_byte(pdev, via->via_pci_parport_irq_reg, &tmp); irq = ((tmp & VIA_IRQCONTROL_PARALLEL) >> 4); - if (siofunc == VIA_FUNCTION_PARPORT_ECP) - { - /* Bits 3-2: PnP Routing for Parallel Port DMA */ - pci_read_config_byte(pdev, via->via_pci_parport_dma_reg, &tmp); - dma = ((tmp & VIA_DMACONTROL_PARALLEL) >> 2); - } - else - /* if ECP not enabled, DMA is not enabled, assumed bogus 'dma' value */ - dma = PARPORT_DMA_NONE; + if (siofunc == VIA_FUNCTION_PARPORT_ECP) { + /* Bits 3-2: PnP Routing for Parallel Port DMA */ + pci_read_config_byte(pdev, via->via_pci_parport_dma_reg, &tmp); + dma = ((tmp & VIA_DMACONTROL_PARALLEL) >> 2); + } else + /* if ECP not enabled, DMA is not enabled, assumed + bogus 'dma' value */ + dma = PARPORT_DMA_NONE; /* Let the user (or defaults) steer us away from interrupts and DMA */ if (autoirq == PARPORT_IRQ_NONE) { - irq = PARPORT_IRQ_NONE; - dma = PARPORT_DMA_NONE; + irq = PARPORT_IRQ_NONE; + dma = PARPORT_DMA_NONE; } if (autodma == PARPORT_DMA_NONE) - dma = PARPORT_DMA_NONE; + dma = PARPORT_DMA_NONE; switch (port1) { - case 0x3bc: port2 = 0x7bc; break; - case 0x378: port2 = 0x778; break; - case 0x278: port2 = 0x678; break; + case 0x3bc: + port2 = 0x7bc; break; + case 0x378: + port2 = 0x778; break; + case 0x278: + port2 = 0x678; break; default: - printk(KERN_INFO "parport_pc: Weird VIA parport base 0x%X, ignoring\n", - port1); + printk(KERN_INFO + "parport_pc: Weird VIA parport base 0x%X, ignoring\n", + port1); return 0; } @@ -2714,17 +2799,17 @@ static int __devinit sio_via_probe (struct pci_dev *pdev, int autoirq, } /* finally, do the probe with values obtained */ - if (parport_pc_probe_port (port1, port2, irq, dma, &pdev->dev, 0)) { - printk (KERN_INFO + if (parport_pc_probe_port(port1, port2, irq, dma, &pdev->dev, 0)) { + printk(KERN_INFO "parport_pc: VIA parallel port: io=0x%X", port1); if (irq != PARPORT_IRQ_NONE) - printk (", irq=%d", irq); + printk(", irq=%d", irq); if (dma != PARPORT_DMA_NONE) - printk (", dma=%d", dma); - printk ("\n"); + printk(", dma=%d", dma); + printk("\n"); return 1; } - + printk(KERN_WARNING "parport_pc: Strange, can't probe VIA parallel port: io=0x%X, irq=%d, dma=%d\n", port1, irq, dma); return 0; @@ -2732,8 +2817,8 @@ static int __devinit sio_via_probe (struct pci_dev *pdev, int autoirq, enum parport_pc_sio_types { - sio_via_686a = 0, /* Via VT82C686A motherboard Super I/O */ - sio_via_8231, /* Via VT8231 south bridge integrated Super IO */ + sio_via_686a = 0, /* Via VT82C686A motherboard Super I/O */ + sio_via_8231, /* Via VT8231 south bridge integrated Super IO */ sio_ite_8872, last_sio }; @@ -2804,15 +2889,15 @@ enum parport_pc_pci_cards { }; -/* each element directly indexed from enum list, above +/* each element directly indexed from enum list, above * (but offset by last_sio) */ static struct parport_pc_pci { int numports; struct { /* BAR (base address registers) numbers in the config - space header */ + space header */ int lo; - int hi; /* -1 if not there, >6 for offset-method (max - BAR is 6) */ + int hi; + /* -1 if not there, >6 for offset-method (max BAR is 6) */ } addr[4]; /* If set, this is called immediately after pci_enable_device. @@ -2857,7 +2942,7 @@ static struct parport_pc_pci { /* timedia_4018 */ { 2, { { 0, 1 }, { 2, 3 }, } }, /* timedia_9018a */ { 2, { { 0, 1 }, { 2, 3 }, } }, /* SYBA uses fixed offsets in - a 1K io window */ + a 1K io window */ /* syba_2p_epp AP138B */ { 2, { { 0, 0x078 }, { 0, 0x178 }, } }, /* syba_1p_ecp W83787 */ { 1, { { 0, 0x078 }, } }, /* titan_010l */ { 1, { { 3, -1 }, } }, @@ -2873,11 +2958,14 @@ static struct parport_pc_pci { /* oxsemi_pcie_pport */ { 1, { { 0, 1 }, } }, /* aks_0100 */ { 1, { { 0, -1 }, } }, /* mobility_pp */ { 1, { { 0, 1 }, } }, - /* netmos_9705 */ { 1, { { 0, -1 }, } }, /* untested */ - /* netmos_9715 */ { 2, { { 0, 1 }, { 2, 3 },} }, /* untested */ - /* netmos_9755 */ { 2, { { 0, 1 }, { 2, 3 },} }, /* untested */ - /* netmos_9805 */ { 1, { { 0, -1 }, } }, /* untested */ - /* netmos_9815 */ { 2, { { 0, -1 }, { 2, -1 }, } }, /* untested */ + + /* The netmos entries below are untested */ + /* netmos_9705 */ { 1, { { 0, -1 }, } }, + /* netmos_9715 */ { 2, { { 0, 1 }, { 2, 3 },} }, + /* netmos_9755 */ { 2, { { 0, 1 }, { 2, 3 },} }, + /* netmos_9805 */ { 1, { { 0, -1 }, } }, + /* netmos_9815 */ { 2, { { 0, -1 }, { 2, -1 }, } }, + /* quatech_sppxp100 */ { 1, { { 0, 1 }, } }, }; @@ -2906,7 +2994,7 @@ static const struct pci_device_id parport_pc_pci_tbl[] = { { PCI_VENDOR_ID_LAVA, PCI_DEVICE_ID_LAVA_BOCA_IOPPAR, PCI_ANY_ID, PCI_ANY_ID, 0, 0, boca_ioppar }, { PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050, - PCI_SUBVENDOR_ID_EXSYS, PCI_SUBDEVICE_ID_EXSYS_4014, 0,0, plx_9050 }, + PCI_SUBVENDOR_ID_EXSYS, PCI_SUBDEVICE_ID_EXSYS_4014, 0, 0, plx_9050 }, /* PCI_VENDOR_ID_TIMEDIA/SUNIX has many differing cards ...*/ { 0x1409, 0x7168, 0x1409, 0x4078, 0, 0, timedia_4078a }, { 0x1409, 0x7168, 0x1409, 0x4079, 0, 0, timedia_4079h }, @@ -2940,7 +3028,8 @@ static const struct pci_device_id parport_pc_pci_tbl[] = { { 0x9710, 0x9805, 0x1000, 0x0010, 0, 0, titan_1284p1 }, { 0x9710, 0x9815, 0x1000, 0x0020, 0, 0, titan_1284p2 }, /* PCI_VENDOR_ID_AVLAB/Intek21 has another bunch of cards ...*/ - { 0x14db, 0x2120, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1p}, /* AFAVLAB_TK9902 */ + /* AFAVLAB_TK9902 */ + { 0x14db, 0x2120, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1p}, { 0x14db, 0x2121, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2p}, { PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI952PP, PCI_ANY_ID, PCI_ANY_ID, 0, 0, oxsemi_952 }, @@ -2983,14 +3072,14 @@ static const struct pci_device_id parport_pc_pci_tbl[] = { PCI_ANY_ID, PCI_ANY_ID, 0, 0, quatech_sppxp100 }, { 0, } /* terminate list */ }; -MODULE_DEVICE_TABLE(pci,parport_pc_pci_tbl); +MODULE_DEVICE_TABLE(pci, parport_pc_pci_tbl); struct pci_parport_data { int num; struct parport *ports[2]; }; -static int parport_pc_pci_probe (struct pci_dev *dev, +static int parport_pc_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { int err, count, n, i = id->driver_data; @@ -3003,7 +3092,8 @@ static int parport_pc_pci_probe (struct pci_dev *dev, /* This is a PCI card */ i -= last_sio; count = 0; - if ((err = pci_enable_device (dev)) != 0) + err = pci_enable_device(dev); + if (err) return err; data = kmalloc(sizeof(struct pci_parport_data), GFP_KERNEL); @@ -3011,7 +3101,7 @@ static int parport_pc_pci_probe (struct pci_dev *dev, return -ENOMEM; if (cards[i].preinit_hook && - cards[i].preinit_hook (dev, PARPORT_IRQ_NONE, PARPORT_DMA_NONE)) { + cards[i].preinit_hook(dev, PARPORT_IRQ_NONE, PARPORT_DMA_NONE)) { kfree(data); return -ENODEV; } @@ -3021,25 +3111,25 @@ static int parport_pc_pci_probe (struct pci_dev *dev, int hi = cards[i].addr[n].hi; int irq; unsigned long io_lo, io_hi; - io_lo = pci_resource_start (dev, lo); + io_lo = pci_resource_start(dev, lo); io_hi = 0; if ((hi >= 0) && (hi <= 6)) - io_hi = pci_resource_start (dev, hi); + io_hi = pci_resource_start(dev, hi); else if (hi > 6) io_lo += hi; /* Reinterpret the meaning of - "hi" as an offset (see SYBA - def.) */ + "hi" as an offset (see SYBA + def.) */ /* TODO: test if sharing interrupts works */ irq = dev->irq; if (irq == IRQ_NONE) { - printk (KERN_DEBUG + printk(KERN_DEBUG "PCI parallel port detected: %04x:%04x, I/O at %#lx(%#lx)\n", parport_pc_pci_tbl[i + last_sio].vendor, parport_pc_pci_tbl[i + last_sio].device, io_lo, io_hi); irq = PARPORT_IRQ_NONE; } else { - printk (KERN_DEBUG + printk(KERN_DEBUG "PCI parallel port detected: %04x:%04x, I/O at %#lx(%#lx), IRQ %d\n", parport_pc_pci_tbl[i + last_sio].vendor, parport_pc_pci_tbl[i + last_sio].device, @@ -3056,7 +3146,7 @@ static int parport_pc_pci_probe (struct pci_dev *dev, data->num = count; if (cards[i].postinit_hook) - cards[i].postinit_hook (dev, count == 0); + cards[i].postinit_hook(dev, count == 0); if (count) { pci_set_drvdata(dev, data); @@ -3090,7 +3180,7 @@ static struct pci_driver parport_pc_pci_driver = { .remove = __devexit_p(parport_pc_pci_remove), }; -static int __init parport_pc_init_superio (int autoirq, int autodma) +static int __init parport_pc_init_superio(int autoirq, int autodma) { const struct pci_device_id *id; struct pci_dev *pdev = NULL; @@ -3101,8 +3191,9 @@ static int __init parport_pc_init_superio (int autoirq, int autodma) if (id == NULL || id->driver_data >= last_sio) continue; - if (parport_pc_superio_info[id->driver_data].probe - (pdev, autoirq, autodma,parport_pc_superio_info[id->driver_data].via)) { + if (parport_pc_superio_info[id->driver_data].probe( + pdev, autoirq, autodma, + parport_pc_superio_info[id->driver_data].via)) { ret++; } } @@ -3111,7 +3202,10 @@ static int __init parport_pc_init_superio (int autoirq, int autodma) } #else static struct pci_driver parport_pc_pci_driver; -static int __init parport_pc_init_superio(int autoirq, int autodma) {return 0;} +static int __init parport_pc_init_superio(int autoirq, int autodma) +{ + return 0; +} #endif /* CONFIG_PCI */ #ifdef CONFIG_PNP @@ -3124,44 +3218,45 @@ static const struct pnp_device_id parport_pc_pnp_tbl[] = { { } }; -MODULE_DEVICE_TABLE(pnp,parport_pc_pnp_tbl); +MODULE_DEVICE_TABLE(pnp, parport_pc_pnp_tbl); -static int parport_pc_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *id) +static int parport_pc_pnp_probe(struct pnp_dev *dev, + const struct pnp_device_id *id) { struct parport *pdata; unsigned long io_lo, io_hi; int dma, irq; - if (pnp_port_valid(dev,0) && - !(pnp_port_flags(dev,0) & IORESOURCE_DISABLED)) { - io_lo = pnp_port_start(dev,0); + if (pnp_port_valid(dev, 0) && + !(pnp_port_flags(dev, 0) & IORESOURCE_DISABLED)) { + io_lo = pnp_port_start(dev, 0); } else return -EINVAL; - if (pnp_port_valid(dev,1) && - !(pnp_port_flags(dev,1) & IORESOURCE_DISABLED)) { - io_hi = pnp_port_start(dev,1); + if (pnp_port_valid(dev, 1) && + !(pnp_port_flags(dev, 1) & IORESOURCE_DISABLED)) { + io_hi = pnp_port_start(dev, 1); } else io_hi = 0; - if (pnp_irq_valid(dev,0) && - !(pnp_irq_flags(dev,0) & IORESOURCE_DISABLED)) { - irq = pnp_irq(dev,0); + if (pnp_irq_valid(dev, 0) && + !(pnp_irq_flags(dev, 0) & IORESOURCE_DISABLED)) { + irq = pnp_irq(dev, 0); } else irq = PARPORT_IRQ_NONE; - if (pnp_dma_valid(dev,0) && - !(pnp_dma_flags(dev,0) & IORESOURCE_DISABLED)) { - dma = pnp_dma(dev,0); + if (pnp_dma_valid(dev, 0) && + !(pnp_dma_flags(dev, 0) & IORESOURCE_DISABLED)) { + dma = pnp_dma(dev, 0); } else dma = PARPORT_DMA_NONE; dev_info(&dev->dev, "reported by %s\n", dev->protocol->name); - if (!(pdata = parport_pc_probe_port(io_lo, io_hi, - irq, dma, &dev->dev, 0))) + pdata = parport_pc_probe_port(io_lo, io_hi, irq, dma, &dev->dev, 0); + if (pdata == NULL) return -ENODEV; - pnp_set_drvdata(dev,pdata); + pnp_set_drvdata(dev, pdata); return 0; } @@ -3203,7 +3298,7 @@ static struct platform_driver parport_pc_platform_driver = { /* This is called by parport_pc_find_nonpci_ports (in asm/parport.h) */ static int __devinit __attribute__((unused)) -parport_pc_find_isa_ports (int autoirq, int autodma) +parport_pc_find_isa_ports(int autoirq, int autodma) { int count = 0; @@ -3227,7 +3322,7 @@ parport_pc_find_isa_ports (int autoirq, int autodma) * autoirq is PARPORT_IRQ_NONE, PARPORT_IRQ_AUTO, or PARPORT_IRQ_PROBEONLY * autodma is PARPORT_DMA_NONE or PARPORT_DMA_AUTO */ -static void __init parport_pc_find_ports (int autoirq, int autodma) +static void __init parport_pc_find_ports(int autoirq, int autodma) { int count = 0, err; @@ -3261,11 +3356,18 @@ static void __init parport_pc_find_ports (int autoirq, int autodma) * syntax and keep in mind that code below is a cleaned up version. */ -static int __initdata io[PARPORT_PC_MAX_PORTS+1] = { [0 ... PARPORT_PC_MAX_PORTS] = 0 }; -static int __initdata io_hi[PARPORT_PC_MAX_PORTS+1] = - { [0 ... PARPORT_PC_MAX_PORTS] = PARPORT_IOHI_AUTO }; -static int __initdata dmaval[PARPORT_PC_MAX_PORTS] = { [0 ... PARPORT_PC_MAX_PORTS-1] = PARPORT_DMA_NONE }; -static int __initdata irqval[PARPORT_PC_MAX_PORTS] = { [0 ... PARPORT_PC_MAX_PORTS-1] = PARPORT_IRQ_PROBEONLY }; +static int __initdata io[PARPORT_PC_MAX_PORTS+1] = { + [0 ... PARPORT_PC_MAX_PORTS] = 0 +}; +static int __initdata io_hi[PARPORT_PC_MAX_PORTS+1] = { + [0 ... PARPORT_PC_MAX_PORTS] = PARPORT_IOHI_AUTO +}; +static int __initdata dmaval[PARPORT_PC_MAX_PORTS] = { + [0 ... PARPORT_PC_MAX_PORTS-1] = PARPORT_DMA_NONE +}; +static int __initdata irqval[PARPORT_PC_MAX_PORTS] = { + [0 ... PARPORT_PC_MAX_PORTS-1] = PARPORT_IRQ_PROBEONLY +}; static int __init parport_parse_param(const char *s, int *val, int automatic, int none, int nofifo) @@ -3306,18 +3408,19 @@ static int __init parport_parse_dma(const char *dmastr, int *val) #ifdef CONFIG_PCI static int __init parport_init_mode_setup(char *str) { - printk(KERN_DEBUG "parport_pc.c: Specified parameter parport_init_mode=%s\n", str); - - if (!strcmp (str, "spp")) - parport_init_mode=1; - if (!strcmp (str, "ps2")) - parport_init_mode=2; - if (!strcmp (str, "epp")) - parport_init_mode=3; - if (!strcmp (str, "ecp")) - parport_init_mode=4; - if (!strcmp (str, "ecpepp")) - parport_init_mode=5; + printk(KERN_DEBUG + "parport_pc.c: Specified parameter parport_init_mode=%s\n", str); + + if (!strcmp(str, "spp")) + parport_init_mode = 1; + if (!strcmp(str, "ps2")) + parport_init_mode = 2; + if (!strcmp(str, "epp")) + parport_init_mode = 3; + if (!strcmp(str, "ecp")) + parport_init_mode = 4; + if (!strcmp(str, "ecpepp")) + parport_init_mode = 5; return 1; } #endif @@ -3341,7 +3444,8 @@ module_param(verbose_probing, int, 0644); #endif #ifdef CONFIG_PCI static char *init_mode; -MODULE_PARM_DESC(init_mode, "Initialise mode for VIA VT8231 port (spp, ps2, epp, ecp or ecpepp)"); +MODULE_PARM_DESC(init_mode, + "Initialise mode for VIA VT8231 port (spp, ps2, epp, ecp or ecpepp)"); module_param(init_mode, charp, 0); #endif @@ -3372,7 +3476,7 @@ static int __init parse_parport_params(void) irqval[0] = val; break; default: - printk (KERN_WARNING + printk(KERN_WARNING "parport_pc: irq specified " "without base address. Use 'io=' " "to specify one\n"); @@ -3385,7 +3489,7 @@ static int __init parse_parport_params(void) dmaval[0] = val; break; default: - printk (KERN_WARNING + printk(KERN_WARNING "parport_pc: dma specified " "without base address. Use 'io=' " "to specify one\n"); @@ -3396,7 +3500,7 @@ static int __init parse_parport_params(void) #else -static int parport_setup_ptr __initdata = 0; +static int parport_setup_ptr __initdata; /* * Acceptable parameters: @@ -3407,7 +3511,7 @@ static int parport_setup_ptr __initdata = 0; * * IRQ/DMA may be numeric or 'auto' or 'none' */ -static int __init parport_setup (char *str) +static int __init parport_setup(char *str) { char *endptr; char *sep; @@ -3419,15 +3523,15 @@ static int __init parport_setup (char *str) return 1; } - if (!strncmp (str, "auto", 4)) { + if (!strncmp(str, "auto", 4)) { irqval[0] = PARPORT_IRQ_AUTO; dmaval[0] = PARPORT_DMA_AUTO; return 1; } - val = simple_strtoul (str, &endptr, 0); + val = simple_strtoul(str, &endptr, 0); if (endptr == str) { - printk (KERN_WARNING "parport=%s not understood\n", str); + printk(KERN_WARNING "parport=%s not understood\n", str); return 1; } @@ -3461,7 +3565,7 @@ static int __init parse_parport_params(void) return io[0] == PARPORT_DISABLE; } -__setup ("parport=", parport_setup); +__setup("parport=", parport_setup); /* * Acceptable parameters: @@ -3469,7 +3573,7 @@ __setup ("parport=", parport_setup); * parport_init_mode=[spp|ps2|epp|ecp|ecpepp] */ #ifdef CONFIG_PCI -__setup("parport_init_mode=",parport_init_mode_setup); +__setup("parport_init_mode=", parport_init_mode_setup); #endif #endif @@ -3493,13 +3597,13 @@ static int __init parport_pc_init(void) for (i = 0; i < PARPORT_PC_MAX_PORTS; i++) { if (!io[i]) break; - if ((io_hi[i]) == PARPORT_IOHI_AUTO) - io_hi[i] = 0x400 + io[i]; + if (io_hi[i] == PARPORT_IOHI_AUTO) + io_hi[i] = 0x400 + io[i]; parport_pc_probe_port(io[i], io_hi[i], - irqval[i], dmaval[i], NULL, 0); + irqval[i], dmaval[i], NULL, 0); } } else - parport_pc_find_ports (irqval[0], dmaval[0]); + parport_pc_find_ports(irqval[0], dmaval[0]); return 0; } @@ -3507,9 +3611,9 @@ static int __init parport_pc_init(void) static void __exit parport_pc_exit(void) { if (pci_registered_parport) - pci_unregister_driver (&parport_pc_pci_driver); + pci_unregister_driver(&parport_pc_pci_driver); if (pnp_registered_parport) - pnp_unregister_driver (&parport_pc_pnp_driver); + pnp_unregister_driver(&parport_pc_pnp_driver); platform_driver_unregister(&parport_pc_platform_driver); while (!list_empty(&ports_list)) { diff --git a/drivers/parport/share.c b/drivers/parport/share.c index 0ebca450ed2..dffa5d4fb29 100644 --- a/drivers/parport/share.c +++ b/drivers/parport/share.c @@ -614,7 +614,10 @@ parport_register_device(struct parport *port, const char *name, * pardevice fields. -arca */ port->ops->init_state(tmp, tmp->state); - parport_device_proc_register(tmp); + if (!test_and_set_bit(PARPORT_DEVPROC_REGISTERED, &port->devflags)) { + port->proc_device = tmp; + parport_device_proc_register(tmp); + } return tmp; out_free_all: @@ -646,10 +649,14 @@ void parport_unregister_device(struct pardevice *dev) } #endif - parport_device_proc_unregister(dev); - port = dev->port->physport; + if (port->proc_device == dev) { + port->proc_device = NULL; + clear_bit(PARPORT_DEVPROC_REGISTERED, &port->devflags); + parport_device_proc_unregister(dev); + } + if (port->cad == dev) { printk(KERN_DEBUG "%s: %s forgot to release port\n", port->name, dev->name); diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index e3c3e081b83..f1ae2475fff 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -745,6 +745,8 @@ int pci_setup_device(struct pci_dev *dev) /* Early fixups, before probing the BARs */ pci_fixup_device(pci_fixup_early, dev); + /* device class may be changed after fixup */ + class = dev->class >> 8; switch (dev->hdr_type) { /* header type */ case PCI_HEADER_TYPE_NORMAL: /* standard header */ diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 4e9851fc174..277d35d232f 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -692,7 +692,7 @@ config RTC_DRV_GENERIC tristate "Generic RTC support" # Please consider writing a new RTC driver instead of using the generic # RTC abstraction - depends on PARISC || M68K || PPC + depends on PARISC || M68K || PPC || SUPERH32 help Say Y or M here to enable RTC support on systems using the generic RTC abstraction. If you do not know what you are doing, you should diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index d1815272c43..27a1be0cd4d 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -603,7 +603,7 @@ static void dasd_profile_end(struct dasd_block *block, if (dasd_profile_level != DASD_PROFILE_ON) return; - sectors = req->nr_sectors; + sectors = blk_rq_sectors(req); if (!cqr->buildclk || !cqr->startclk || !cqr->stopclk || !cqr->endclk || !sectors) @@ -1614,15 +1614,6 @@ void dasd_block_clear_timer(struct dasd_block *block) } /* - * posts the buffer_cache about a finalized request - */ -static inline void dasd_end_request(struct request *req, int error) -{ - if (__blk_end_request(req, error, blk_rq_bytes(req))) - BUG(); -} - -/* * Process finished error recovery ccw. */ static inline void __dasd_block_process_erp(struct dasd_block *block, @@ -1665,18 +1656,14 @@ static void __dasd_process_request_queue(struct dasd_block *block) if (basedev->state < DASD_STATE_READY) return; /* Now we try to fetch requests from the request queue */ - while (!blk_queue_plugged(queue) && - elv_next_request(queue)) { - - req = elv_next_request(queue); - + while (!blk_queue_plugged(queue) && (req = blk_peek_request(queue))) { if (basedev->features & DASD_FEATURE_READONLY && rq_data_dir(req) == WRITE) { DBF_DEV_EVENT(DBF_ERR, basedev, "Rejecting write request %p", req); - blkdev_dequeue_request(req); - dasd_end_request(req, -EIO); + blk_start_request(req); + __blk_end_request_all(req, -EIO); continue; } cqr = basedev->discipline->build_cp(basedev, block, req); @@ -1704,8 +1691,8 @@ static void __dasd_process_request_queue(struct dasd_block *block) "CCW creation failed (rc=%ld) " "on request %p", PTR_ERR(cqr), req); - blkdev_dequeue_request(req); - dasd_end_request(req, -EIO); + blk_start_request(req); + __blk_end_request_all(req, -EIO); continue; } /* @@ -1714,7 +1701,7 @@ static void __dasd_process_request_queue(struct dasd_block *block) */ cqr->callback_data = (void *) req; cqr->status = DASD_CQR_FILLED; - blkdev_dequeue_request(req); + blk_start_request(req); list_add_tail(&cqr->blocklist, &block->ccw_queue); dasd_profile_start(block, cqr, req); } @@ -1731,7 +1718,7 @@ static void __dasd_cleanup_cqr(struct dasd_ccw_req *cqr) status = cqr->block->base->discipline->free_cp(cqr, req); if (status <= 0) error = status ? status : -EIO; - dasd_end_request(req, error); + __blk_end_request_all(req, error); } /* @@ -2003,7 +1990,7 @@ static void dasd_setup_queue(struct dasd_block *block) { int max; - blk_queue_hardsect_size(block->request_queue, block->bp_block); + blk_queue_logical_block_size(block->request_queue, block->bp_block); max = block->base->discipline->max_blocks << block->s2b_shift; blk_queue_max_sectors(block->request_queue, max); blk_queue_max_phys_segments(block->request_queue, -1L); @@ -2038,10 +2025,8 @@ static void dasd_flush_request_queue(struct dasd_block *block) return; spin_lock_irq(&block->request_queue_lock); - while ((req = elv_next_request(block->request_queue))) { - blkdev_dequeue_request(req); - dasd_end_request(req, -EIO); - } + while ((req = blk_fetch_request(block->request_queue))) + __blk_end_request_all(req, -EIO); spin_unlock_irq(&block->request_queue_lock); } diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c index b9a7f773344..2efaddfae56 100644 --- a/drivers/s390/block/dasd_diag.c +++ b/drivers/s390/block/dasd_diag.c @@ -505,8 +505,9 @@ static struct dasd_ccw_req *dasd_diag_build_cp(struct dasd_device *memdev, return ERR_PTR(-EINVAL); blksize = block->bp_block; /* Calculate record id of first and last block. */ - first_rec = req->sector >> block->s2b_shift; - last_rec = (req->sector + req->nr_sectors - 1) >> block->s2b_shift; + first_rec = blk_rq_pos(req) >> block->s2b_shift; + last_rec = + (blk_rq_pos(req) + blk_rq_sectors(req) - 1) >> block->s2b_shift; /* Check struct bio and count the number of blocks for the request. */ count = 0; rq_for_each_segment(bv, req, iter) { diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index cb52da033f0..a41c94053e6 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -2354,10 +2354,10 @@ static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev, blksize = block->bp_block; blk_per_trk = recs_per_track(&private->rdc_data, 0, blksize); /* Calculate record id of first and last block. */ - first_rec = first_trk = req->sector >> block->s2b_shift; + first_rec = first_trk = blk_rq_pos(req) >> block->s2b_shift; first_offs = sector_div(first_trk, blk_per_trk); last_rec = last_trk = - (req->sector + req->nr_sectors - 1) >> block->s2b_shift; + (blk_rq_pos(req) + blk_rq_sectors(req) - 1) >> block->s2b_shift; last_offs = sector_div(last_trk, blk_per_trk); cdlspecial = (private->uses_cdl && first_rec < 2*blk_per_trk); @@ -2420,7 +2420,7 @@ dasd_eckd_free_cp(struct dasd_ccw_req *cqr, struct request *req) private = (struct dasd_eckd_private *) cqr->block->base->private; blksize = cqr->block->bp_block; blk_per_trk = recs_per_track(&private->rdc_data, 0, blksize); - recid = req->sector >> cqr->block->s2b_shift; + recid = blk_rq_pos(req) >> cqr->block->s2b_shift; ccw = cqr->cpaddr; /* Skip over define extent & locate record. */ ccw++; diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c index a3eb6fd1467..8912358daa2 100644 --- a/drivers/s390/block/dasd_fba.c +++ b/drivers/s390/block/dasd_fba.c @@ -270,8 +270,9 @@ static struct dasd_ccw_req *dasd_fba_build_cp(struct dasd_device * memdev, return ERR_PTR(-EINVAL); blksize = block->bp_block; /* Calculate record id of first and last block. */ - first_rec = req->sector >> block->s2b_shift; - last_rec = (req->sector + req->nr_sectors - 1) >> block->s2b_shift; + first_rec = blk_rq_pos(req) >> block->s2b_shift; + last_rec = + (blk_rq_pos(req) + blk_rq_sectors(req) - 1) >> block->s2b_shift; /* Check struct bio and count the number of blocks for the request. */ count = 0; cidaw = 0; @@ -309,7 +310,7 @@ static struct dasd_ccw_req *dasd_fba_build_cp(struct dasd_device * memdev, ccw = cqr->cpaddr; /* First ccw is define extent. */ define_extent(ccw++, cqr->data, rq_data_dir(req), - block->bp_block, req->sector, req->nr_sectors); + block->bp_block, blk_rq_pos(req), blk_rq_sectors(req)); /* Build locate_record + read/write ccws. */ idaws = (unsigned long *) (cqr->data + sizeof(struct DE_fba_data)); LO_data = (struct LO_fba_data *) (idaws + cidaw); diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c index cfdcf1aed33..a4c7ffcd998 100644 --- a/drivers/s390/block/dcssblk.c +++ b/drivers/s390/block/dcssblk.c @@ -602,7 +602,7 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char dev_info->gd->private_data = dev_info; dev_info->gd->driverfs_dev = &dev_info->dev; blk_queue_make_request(dev_info->dcssblk_queue, dcssblk_make_request); - blk_queue_hardsect_size(dev_info->dcssblk_queue, 4096); + blk_queue_logical_block_size(dev_info->dcssblk_queue, 4096); seg_byte_size = (dev_info->end - dev_info->start + 1); set_capacity(dev_info->gd, seg_byte_size >> 9); // size in sectors diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c index 76814f3e898..0ae0c83ef87 100644 --- a/drivers/s390/block/xpram.c +++ b/drivers/s390/block/xpram.c @@ -343,7 +343,7 @@ static int __init xpram_setup_blkdev(void) goto out; } blk_queue_make_request(xpram_queues[i], xpram_make_request); - blk_queue_hardsect_size(xpram_queues[i], 4096); + blk_queue_logical_block_size(xpram_queues[i], 4096); } /* diff --git a/drivers/s390/char/tape_34xx.c b/drivers/s390/char/tape_34xx.c index 5f8e8ef43dd..2d00a383a47 100644 --- a/drivers/s390/char/tape_34xx.c +++ b/drivers/s390/char/tape_34xx.c @@ -1134,7 +1134,7 @@ tape_34xx_bread(struct tape_device *device, struct request *req) /* Setup ccws. */ request->op = TO_BLOCK; start_block = (struct tape_34xx_block_id *) request->cpdata; - start_block->block = req->sector >> TAPEBLOCK_HSEC_S2B; + start_block->block = blk_rq_pos(req) >> TAPEBLOCK_HSEC_S2B; DBF_EVENT(6, "start_block = %i\n", start_block->block); ccw = request->cpaddr; diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c index 823b05bd0dd..c453b2f3e9f 100644 --- a/drivers/s390/char/tape_3590.c +++ b/drivers/s390/char/tape_3590.c @@ -633,7 +633,7 @@ tape_3590_bread(struct tape_device *device, struct request *req) struct req_iterator iter; DBF_EVENT(6, "xBREDid:"); - start_block = req->sector >> TAPEBLOCK_HSEC_S2B; + start_block = blk_rq_pos(req) >> TAPEBLOCK_HSEC_S2B; DBF_EVENT(6, "start_block = %i\n", start_block); rq_for_each_segment(bv, req, iter) diff --git a/drivers/s390/char/tape_block.c b/drivers/s390/char/tape_block.c index f32e89e7c4f..47ff695255e 100644 --- a/drivers/s390/char/tape_block.c +++ b/drivers/s390/char/tape_block.c @@ -74,13 +74,6 @@ tapeblock_trigger_requeue(struct tape_device *device) * Post finished request. */ static void -tapeblock_end_request(struct request *req, int error) -{ - if (blk_end_request(req, error, blk_rq_bytes(req))) - BUG(); -} - -static void __tapeblock_end_request(struct tape_request *ccw_req, void *data) { struct tape_device *device; @@ -90,17 +83,17 @@ __tapeblock_end_request(struct tape_request *ccw_req, void *data) device = ccw_req->device; req = (struct request *) data; - tapeblock_end_request(req, (ccw_req->rc == 0) ? 0 : -EIO); + blk_end_request_all(req, (ccw_req->rc == 0) ? 0 : -EIO); if (ccw_req->rc == 0) /* Update position. */ device->blk_data.block_position = - (req->sector + req->nr_sectors) >> TAPEBLOCK_HSEC_S2B; + (blk_rq_pos(req) + blk_rq_sectors(req)) >> TAPEBLOCK_HSEC_S2B; else /* We lost the position information due to an error. */ device->blk_data.block_position = -1; device->discipline->free_bread(ccw_req); if (!list_empty(&device->req_queue) || - elv_next_request(device->blk_data.request_queue)) + blk_peek_request(device->blk_data.request_queue)) tapeblock_trigger_requeue(device); } @@ -118,7 +111,7 @@ tapeblock_start_request(struct tape_device *device, struct request *req) ccw_req = device->discipline->bread(device, req); if (IS_ERR(ccw_req)) { DBF_EVENT(1, "TBLOCK: bread failed\n"); - tapeblock_end_request(req, -EIO); + blk_end_request_all(req, -EIO); return PTR_ERR(ccw_req); } ccw_req->callback = __tapeblock_end_request; @@ -131,7 +124,7 @@ tapeblock_start_request(struct tape_device *device, struct request *req) * Start/enqueueing failed. No retries in * this case. */ - tapeblock_end_request(req, -EIO); + blk_end_request_all(req, -EIO); device->discipline->free_bread(ccw_req); } @@ -169,19 +162,16 @@ tapeblock_requeue(struct work_struct *work) { spin_lock_irq(&device->blk_data.request_queue_lock); while ( !blk_queue_plugged(queue) && - elv_next_request(queue) && + (req = blk_fetch_request(queue)) && nr_queued < TAPEBLOCK_MIN_REQUEUE ) { - req = elv_next_request(queue); if (rq_data_dir(req) == WRITE) { DBF_EVENT(1, "TBLOCK: Rejecting write request\n"); - blkdev_dequeue_request(req); spin_unlock_irq(&device->blk_data.request_queue_lock); - tapeblock_end_request(req, -EIO); + blk_end_request_all(req, -EIO); spin_lock_irq(&device->blk_data.request_queue_lock); continue; } - blkdev_dequeue_request(req); nr_queued++; spin_unlock_irq(&device->blk_data.request_queue_lock); rc = tapeblock_start_request(device, req); @@ -232,7 +222,7 @@ tapeblock_setup_device(struct tape_device * device) if (rc) goto cleanup_queue; - blk_queue_hardsect_size(blkdat->request_queue, TAPEBLOCK_HSEC_SIZE); + blk_queue_logical_block_size(blkdat->request_queue, TAPEBLOCK_HSEC_SIZE); blk_queue_max_sectors(blkdat->request_queue, TAPEBLOCK_MAX_SEC); blk_queue_max_phys_segments(blkdat->request_queue, -1L); blk_queue_max_hw_segments(blkdat->request_queue, -1L); diff --git a/drivers/sbus/char/jsflash.c b/drivers/sbus/char/jsflash.c index a85ad05e854..6d465168468 100644 --- a/drivers/sbus/char/jsflash.c +++ b/drivers/sbus/char/jsflash.c @@ -186,31 +186,31 @@ static void jsfd_do_request(struct request_queue *q) { struct request *req; - while ((req = elv_next_request(q)) != NULL) { + req = blk_fetch_request(q); + while (req) { struct jsfd_part *jdp = req->rq_disk->private_data; - unsigned long offset = req->sector << 9; - size_t len = req->current_nr_sectors << 9; + unsigned long offset = blk_rq_pos(req) << 9; + size_t len = blk_rq_cur_bytes(req); + int err = -EIO; - if ((offset + len) > jdp->dsize) { - end_request(req, 0); - continue; - } + if ((offset + len) > jdp->dsize) + goto end; if (rq_data_dir(req) != READ) { printk(KERN_ERR "jsfd: write\n"); - end_request(req, 0); - continue; + goto end; } if ((jdp->dbase & 0xff000000) != 0x20000000) { printk(KERN_ERR "jsfd: bad base %x\n", (int)jdp->dbase); - end_request(req, 0); - continue; + goto end; } jsfd_read(req->buffer, jdp->dbase + offset, len); - - end_request(req, 1); + err = 0; + end: + if (!__blk_end_request_cur(req, err)) + req = blk_fetch_request(q); } } diff --git a/drivers/scsi/eata.c b/drivers/scsi/eata.c index be5099dd94b..c7076ce25e2 100644 --- a/drivers/scsi/eata.c +++ b/drivers/scsi/eata.c @@ -1825,7 +1825,7 @@ static int eata2x_queuecommand(struct scsi_cmnd *SCpnt, if (linked_comm && SCpnt->device->queue_depth > 2 && TLDEV(SCpnt->device->type)) { ha->cp_stat[i] = READY; - flush_dev(SCpnt->device, SCpnt->request->sector, ha, 0); + flush_dev(SCpnt->device, blk_rq_pos(SCpnt->request), ha, 0); return 0; } @@ -2144,13 +2144,13 @@ static int reorder(struct hostdata *ha, unsigned long cursec, if (!cpp->din) input_only = 0; - if (SCpnt->request->sector < minsec) - minsec = SCpnt->request->sector; - if (SCpnt->request->sector > maxsec) - maxsec = SCpnt->request->sector; + if (blk_rq_pos(SCpnt->request) < minsec) + minsec = blk_rq_pos(SCpnt->request); + if (blk_rq_pos(SCpnt->request) > maxsec) + maxsec = blk_rq_pos(SCpnt->request); - sl[n] = SCpnt->request->sector; - ioseek += SCpnt->request->nr_sectors; + sl[n] = blk_rq_pos(SCpnt->request); + ioseek += blk_rq_sectors(SCpnt->request); if (!n) continue; @@ -2190,7 +2190,7 @@ static int reorder(struct hostdata *ha, unsigned long cursec, k = il[n]; cpp = &ha->cp[k]; SCpnt = cpp->SCpnt; - ll[n] = SCpnt->request->nr_sectors; + ll[n] = blk_rq_sectors(SCpnt->request); pl[n] = SCpnt->serial_number; if (!n) @@ -2236,12 +2236,12 @@ static int reorder(struct hostdata *ha, unsigned long cursec, cpp = &ha->cp[k]; SCpnt = cpp->SCpnt; scmd_printk(KERN_INFO, SCpnt, - "%s pid %ld mb %d fc %d nr %d sec %ld ns %ld" + "%s pid %ld mb %d fc %d nr %d sec %ld ns %u" " cur %ld s:%c r:%c rev:%c in:%c ov:%c xd %d.\n", (ihdlr ? "ihdlr" : "qcomm"), SCpnt->serial_number, k, flushcount, - n_ready, SCpnt->request->sector, - SCpnt->request->nr_sectors, cursec, YESNO(s), + n_ready, blk_rq_pos(SCpnt->request), + blk_rq_sectors(SCpnt->request), cursec, YESNO(s), YESNO(r), YESNO(rev), YESNO(input_only), YESNO(overlap), cpp->din); } @@ -2408,7 +2408,7 @@ static irqreturn_t ihdlr(struct Scsi_Host *shost) if (linked_comm && SCpnt->device->queue_depth > 2 && TLDEV(SCpnt->device->type)) - flush_dev(SCpnt->device, SCpnt->request->sector, ha, 1); + flush_dev(SCpnt->device, blk_rq_pos(SCpnt->request), ha, 1); tstatus = status_byte(spp->target_status); diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index 3da02e43678..54fa1e42dc4 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -1927,21 +1927,21 @@ int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, /* do we need to support multiple segments? */ if (req->bio->bi_vcnt > 1 || rsp->bio->bi_vcnt > 1) { printk("%s: multiple segments req %u %u, rsp %u %u\n", - __func__, req->bio->bi_vcnt, req->data_len, - rsp->bio->bi_vcnt, rsp->data_len); + __func__, req->bio->bi_vcnt, blk_rq_bytes(req), + rsp->bio->bi_vcnt, blk_rq_bytes(rsp)); return -EINVAL; } - ret = smp_execute_task(dev, bio_data(req->bio), req->data_len, - bio_data(rsp->bio), rsp->data_len); + ret = smp_execute_task(dev, bio_data(req->bio), blk_rq_bytes(req), + bio_data(rsp->bio), blk_rq_bytes(rsp)); if (ret > 0) { /* positive number is the untransferred residual */ - rsp->data_len = ret; - req->data_len = 0; + rsp->resid_len = ret; + req->resid_len = 0; ret = 0; } else if (ret == 0) { - rsp->data_len = 0; - req->data_len = 0; + rsp->resid_len = 0; + req->resid_len = 0; } return ret; diff --git a/drivers/scsi/libsas/sas_host_smp.c b/drivers/scsi/libsas/sas_host_smp.c index d110a366c48..1bc3b756799 100644 --- a/drivers/scsi/libsas/sas_host_smp.c +++ b/drivers/scsi/libsas/sas_host_smp.c @@ -134,24 +134,24 @@ int sas_smp_host_handler(struct Scsi_Host *shost, struct request *req, { u8 *req_data = NULL, *resp_data = NULL, *buf; struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost); - int error = -EINVAL, resp_data_len = rsp->data_len; + int error = -EINVAL; /* eight is the minimum size for request and response frames */ - if (req->data_len < 8 || rsp->data_len < 8) + if (blk_rq_bytes(req) < 8 || blk_rq_bytes(rsp) < 8) goto out; - if (bio_offset(req->bio) + req->data_len > PAGE_SIZE || - bio_offset(rsp->bio) + rsp->data_len > PAGE_SIZE) { + if (bio_offset(req->bio) + blk_rq_bytes(req) > PAGE_SIZE || + bio_offset(rsp->bio) + blk_rq_bytes(rsp) > PAGE_SIZE) { shost_printk(KERN_ERR, shost, "SMP request/response frame crosses page boundary"); goto out; } - req_data = kzalloc(req->data_len, GFP_KERNEL); + req_data = kzalloc(blk_rq_bytes(req), GFP_KERNEL); /* make sure frame can always be built ... we copy * back only the requested length */ - resp_data = kzalloc(max(rsp->data_len, 128U), GFP_KERNEL); + resp_data = kzalloc(max(blk_rq_bytes(rsp), 128U), GFP_KERNEL); if (!req_data || !resp_data) { error = -ENOMEM; @@ -160,7 +160,7 @@ int sas_smp_host_handler(struct Scsi_Host *shost, struct request *req, local_irq_disable(); buf = kmap_atomic(bio_page(req->bio), KM_USER0) + bio_offset(req->bio); - memcpy(req_data, buf, req->data_len); + memcpy(req_data, buf, blk_rq_bytes(req)); kunmap_atomic(buf - bio_offset(req->bio), KM_USER0); local_irq_enable(); @@ -178,15 +178,15 @@ int sas_smp_host_handler(struct Scsi_Host *shost, struct request *req, switch (req_data[1]) { case SMP_REPORT_GENERAL: - req->data_len -= 8; - resp_data_len -= 32; + req->resid_len -= 8; + rsp->resid_len -= 32; resp_data[2] = SMP_RESP_FUNC_ACC; resp_data[9] = sas_ha->num_phys; break; case SMP_REPORT_MANUF_INFO: - req->data_len -= 8; - resp_data_len -= 64; + req->resid_len -= 8; + rsp->resid_len -= 64; resp_data[2] = SMP_RESP_FUNC_ACC; memcpy(resp_data + 12, shost->hostt->name, SAS_EXPANDER_VENDOR_ID_LEN); @@ -199,13 +199,13 @@ int sas_smp_host_handler(struct Scsi_Host *shost, struct request *req, break; case SMP_DISCOVER: - req->data_len -= 16; - if ((int)req->data_len < 0) { - req->data_len = 0; + req->resid_len -= 16; + if ((int)req->resid_len < 0) { + req->resid_len = 0; error = -EINVAL; goto out; } - resp_data_len -= 56; + rsp->resid_len -= 56; sas_host_smp_discover(sas_ha, resp_data, req_data[9]); break; @@ -215,13 +215,13 @@ int sas_smp_host_handler(struct Scsi_Host *shost, struct request *req, break; case SMP_REPORT_PHY_SATA: - req->data_len -= 16; - if ((int)req->data_len < 0) { - req->data_len = 0; + req->resid_len -= 16; + if ((int)req->resid_len < 0) { + req->resid_len = 0; error = -EINVAL; goto out; } - resp_data_len -= 60; + rsp->resid_len -= 60; sas_report_phy_sata(sas_ha, resp_data, req_data[9]); break; @@ -238,13 +238,13 @@ int sas_smp_host_handler(struct Scsi_Host *shost, struct request *req, break; case SMP_PHY_CONTROL: - req->data_len -= 44; - if ((int)req->data_len < 0) { - req->data_len = 0; + req->resid_len -= 44; + if ((int)req->resid_len < 0) { + req->resid_len = 0; error = -EINVAL; goto out; } - resp_data_len -= 8; + rsp->resid_len -= 8; sas_phy_control(sas_ha, req_data[9], req_data[10], req_data[32] >> 4, req_data[33] >> 4, resp_data); @@ -261,11 +261,10 @@ int sas_smp_host_handler(struct Scsi_Host *shost, struct request *req, local_irq_disable(); buf = kmap_atomic(bio_page(rsp->bio), KM_USER0) + bio_offset(rsp->bio); - memcpy(buf, resp_data, rsp->data_len); + memcpy(buf, resp_data, blk_rq_bytes(rsp)); flush_kernel_dcache_page(bio_page(rsp->bio)); kunmap_atomic(buf - bio_offset(rsp->bio), KM_USER0); local_irq_enable(); - rsp->data_len = resp_data_len; out: kfree(req_data); diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 167b66dd34c..8032c5adb6a 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -1312,10 +1312,10 @@ lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd, uint32_t bgstat = bgf->bgstat; uint64_t failing_sector = 0; - printk(KERN_ERR "BG ERROR in cmd 0x%x lba 0x%llx blk cnt 0x%lx " + printk(KERN_ERR "BG ERROR in cmd 0x%x lba 0x%llx blk cnt 0x%x " "bgstat=0x%x bghm=0x%x\n", cmd->cmnd[0], (unsigned long long)scsi_get_lba(cmd), - cmd->request->nr_sectors, bgstat, bghm); + blk_rq_sectors(cmd->request), bgstat, bghm); spin_lock(&_dump_buf_lock); if (!_dump_buf_done) { @@ -2378,15 +2378,15 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) if (cmnd->cmnd[0] == READ_10) lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, "9035 BLKGRD: READ @ sector %llu, " - "count %lu\n", - (unsigned long long)scsi_get_lba(cmnd), - cmnd->request->nr_sectors); + "count %u\n", + (unsigned long long)scsi_get_lba(cmnd), + blk_rq_sectors(cmnd->request)); else if (cmnd->cmnd[0] == WRITE_10) lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, "9036 BLKGRD: WRITE @ sector %llu, " - "count %lu cmd=%p\n", + "count %u cmd=%p\n", (unsigned long long)scsi_get_lba(cmnd), - cmnd->request->nr_sectors, + blk_rq_sectors(cmnd->request), cmnd); err = lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd); @@ -2406,15 +2406,15 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) if (cmnd->cmnd[0] == READ_10) lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, "9040 dbg: READ @ sector %llu, " - "count %lu\n", + "count %u\n", (unsigned long long)scsi_get_lba(cmnd), - cmnd->request->nr_sectors); + blk_rq_sectors(cmnd->request)); else if (cmnd->cmnd[0] == WRITE_10) lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, "9041 dbg: WRITE @ sector %llu, " - "count %lu cmd=%p\n", + "count %u cmd=%p\n", (unsigned long long)scsi_get_lba(cmnd), - cmnd->request->nr_sectors, cmnd); + blk_rq_sectors(cmnd->request), cmnd); else lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, "9042 dbg: parser not implemented\n"); diff --git a/drivers/scsi/mpt2sas/mpt2sas_transport.c b/drivers/scsi/mpt2sas/mpt2sas_transport.c index e03dc0b1e1a..5c65da519e3 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_transport.c +++ b/drivers/scsi/mpt2sas/mpt2sas_transport.c @@ -1041,7 +1041,7 @@ transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, if (req->bio->bi_vcnt > 1 || rsp->bio->bi_vcnt > 1) { printk(MPT2SAS_ERR_FMT "%s: multiple segments req %u %u, " "rsp %u %u\n", ioc->name, __func__, req->bio->bi_vcnt, - req->data_len, rsp->bio->bi_vcnt, rsp->data_len); + blk_rq_bytes(req), rsp->bio->bi_vcnt, blk_rq_bytes(rsp)); return -EINVAL; } @@ -1104,7 +1104,7 @@ transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, *((u64 *)&mpi_request->SASAddress) = (rphy) ? cpu_to_le64(rphy->identify.sas_address) : cpu_to_le64(ioc->sas_hba.sas_address); - mpi_request->RequestDataLength = cpu_to_le16(req->data_len - 4); + mpi_request->RequestDataLength = cpu_to_le16(blk_rq_bytes(req) - 4); psge = &mpi_request->SGL; /* WRITE sgel first */ @@ -1112,13 +1112,13 @@ transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC); sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; dma_addr_out = pci_map_single(ioc->pdev, bio_data(req->bio), - req->data_len, PCI_DMA_BIDIRECTIONAL); + blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL); if (!dma_addr_out) { mpt2sas_base_free_smid(ioc, le16_to_cpu(smid)); goto unmap; } - ioc->base_add_sg_single(psge, sgl_flags | (req->data_len - 4), + ioc->base_add_sg_single(psge, sgl_flags | (blk_rq_bytes(req) - 4), dma_addr_out); /* incr sgel */ @@ -1129,14 +1129,14 @@ transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST); sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; - dma_addr_in = pci_map_single(ioc->pdev, bio_data(rsp->bio), - rsp->data_len, PCI_DMA_BIDIRECTIONAL); + dma_addr_in = pci_map_single(ioc->pdev, bio_data(rsp->bio), + blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL); if (!dma_addr_in) { mpt2sas_base_free_smid(ioc, le16_to_cpu(smid)); goto unmap; } - ioc->base_add_sg_single(psge, sgl_flags | (rsp->data_len + 4), + ioc->base_add_sg_single(psge, sgl_flags | (blk_rq_bytes(rsp) + 4), dma_addr_in); dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s - " @@ -1170,9 +1170,8 @@ transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, memcpy(req->sense, mpi_reply, sizeof(*mpi_reply)); req->sense_len = sizeof(*mpi_reply); - req->data_len = 0; - rsp->data_len -= mpi_reply->ResponseDataLength; - + req->resid_len = 0; + rsp->resid_len -= mpi_reply->ResponseDataLength; } else { dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s - no reply\n", ioc->name, __func__)); @@ -1188,10 +1187,10 @@ transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, unmap: if (dma_addr_out) - pci_unmap_single(ioc->pdev, dma_addr_out, req->data_len, + pci_unmap_single(ioc->pdev, dma_addr_out, blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL); if (dma_addr_in) - pci_unmap_single(ioc->pdev, dma_addr_in, rsp->data_len, + pci_unmap_single(ioc->pdev, dma_addr_in, blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL); out: diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c index 1ce6b24abab..5776b2ab6b1 100644 --- a/drivers/scsi/osd/osd_initiator.c +++ b/drivers/scsi/osd/osd_initiator.c @@ -889,26 +889,6 @@ int osd_req_add_set_attr_list(struct osd_request *or, } EXPORT_SYMBOL(osd_req_add_set_attr_list); -static int _append_map_kern(struct request *req, - void *buff, unsigned len, gfp_t flags) -{ - struct bio *bio; - int ret; - - bio = bio_map_kern(req->q, buff, len, flags); - if (IS_ERR(bio)) { - OSD_ERR("Failed bio_map_kern(%p, %d) => %ld\n", buff, len, - PTR_ERR(bio)); - return PTR_ERR(bio); - } - ret = blk_rq_append_bio(req->q, req, bio); - if (ret) { - OSD_ERR("Failed blk_rq_append_bio(%p) => %d\n", bio, ret); - bio_put(bio); - } - return ret; -} - static int _req_append_segment(struct osd_request *or, unsigned padding, struct _osd_req_data_segment *seg, struct _osd_req_data_segment *last_seg, struct _osd_io_info *io) @@ -924,14 +904,14 @@ static int _req_append_segment(struct osd_request *or, else pad_buff = io->pad_buff; - ret = _append_map_kern(io->req, pad_buff, padding, + ret = blk_rq_map_kern(io->req->q, io->req, pad_buff, padding, or->alloc_flags); if (ret) return ret; io->total_bytes += padding; } - ret = _append_map_kern(io->req, seg->buff, seg->total_bytes, + ret = blk_rq_map_kern(io->req->q, io->req, seg->buff, seg->total_bytes, or->alloc_flags); if (ret) return ret; @@ -1293,6 +1273,21 @@ static int _osd_req_finalize_data_integrity(struct osd_request *or, /* * osd_finalize_request and helpers */ +static struct request *_make_request(struct request_queue *q, bool has_write, + struct _osd_io_info *oii, gfp_t flags) +{ + if (oii->bio) + return blk_make_request(q, oii->bio, flags); + else { + struct request *req; + + req = blk_get_request(q, has_write ? WRITE : READ, flags); + if (unlikely(!req)) + return ERR_PTR(-ENOMEM); + + return req; + } +} static int _init_blk_request(struct osd_request *or, bool has_in, bool has_out) @@ -1301,11 +1296,13 @@ static int _init_blk_request(struct osd_request *or, struct scsi_device *scsi_device = or->osd_dev->scsi_device; struct request_queue *q = scsi_device->request_queue; struct request *req; - int ret = -ENOMEM; + int ret; - req = blk_get_request(q, has_out, flags); - if (!req) + req = _make_request(q, has_out, has_out ? &or->out : &or->in, flags); + if (IS_ERR(req)) { + ret = PTR_ERR(req); goto out; + } or->request = req; req->cmd_type = REQ_TYPE_BLOCK_PC; @@ -1318,9 +1315,10 @@ static int _init_blk_request(struct osd_request *or, or->out.req = req; if (has_in) { /* allocate bidi request */ - req = blk_get_request(q, READ, flags); - if (!req) { + req = _make_request(q, false, &or->in, flags); + if (IS_ERR(req)) { OSD_DEBUG("blk_get_request for bidi failed\n"); + ret = PTR_ERR(req); goto out; } req->cmd_type = REQ_TYPE_BLOCK_PC; @@ -1364,26 +1362,6 @@ int osd_finalize_request(struct osd_request *or, return ret; } - if (or->out.bio) { - ret = blk_rq_append_bio(or->request->q, or->out.req, - or->out.bio); - if (ret) { - OSD_DEBUG("blk_rq_append_bio out failed\n"); - return ret; - } - OSD_DEBUG("out bytes=%llu (bytes_req=%u)\n", - _LLU(or->out.total_bytes), or->out.req->data_len); - } - if (or->in.bio) { - ret = blk_rq_append_bio(or->request->q, or->in.req, or->in.bio); - if (ret) { - OSD_DEBUG("blk_rq_append_bio in failed\n"); - return ret; - } - OSD_DEBUG("in bytes=%llu (bytes_req=%u)\n", - _LLU(or->in.total_bytes), or->in.req->data_len); - } - or->out.pad_buff = sg_out_pad_buffer; or->in.pad_buff = sg_in_pad_buffer; diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index bb218c8b6e9..dd3f9d2b99f 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -240,11 +240,11 @@ int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd, * is invalid. Prevent the garbage from being misinterpreted * and prevent security leaks by zeroing out the excess data. */ - if (unlikely(req->data_len > 0 && req->data_len <= bufflen)) - memset(buffer + (bufflen - req->data_len), 0, req->data_len); + if (unlikely(req->resid_len > 0 && req->resid_len <= bufflen)) + memset(buffer + (bufflen - req->resid_len), 0, req->resid_len); if (resid) - *resid = req->data_len; + *resid = req->resid_len; ret = req->errors; out: blk_put_request(req); @@ -546,14 +546,9 @@ static struct scsi_cmnd *scsi_end_request(struct scsi_cmnd *cmd, int error, * to queue the remainder of them. */ if (blk_end_request(req, error, bytes)) { - int leftover = (req->hard_nr_sectors << 9); - - if (blk_pc_request(req)) - leftover = req->data_len; - /* kill remainder if no retrys */ if (error && scsi_noretry_cmd(cmd)) - blk_end_request(req, error, leftover); + blk_end_request_all(req, error); else { if (requeue) { /* @@ -673,34 +668,6 @@ void scsi_release_buffers(struct scsi_cmnd *cmd) EXPORT_SYMBOL(scsi_release_buffers); /* - * Bidi commands Must be complete as a whole, both sides at once. - * If part of the bytes were written and lld returned - * scsi_in()->resid and/or scsi_out()->resid this information will be left - * in req->data_len and req->next_rq->data_len. The upper-layer driver can - * decide what to do with this information. - */ -static void scsi_end_bidi_request(struct scsi_cmnd *cmd) -{ - struct request *req = cmd->request; - unsigned int dlen = req->data_len; - unsigned int next_dlen = req->next_rq->data_len; - - req->data_len = scsi_out(cmd)->resid; - req->next_rq->data_len = scsi_in(cmd)->resid; - - /* The req and req->next_rq have not been completed */ - BUG_ON(blk_end_bidi_request(req, 0, dlen, next_dlen)); - - scsi_release_buffers(cmd); - - /* - * This will goose the queue request function at the end, so we don't - * need to worry about launching another command. - */ - scsi_next_command(cmd); -} - -/* * Function: scsi_io_completion() * * Purpose: Completion processing for block device I/O requests. @@ -739,7 +706,6 @@ static void scsi_end_bidi_request(struct scsi_cmnd *cmd) void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) { int result = cmd->result; - int this_count; struct request_queue *q = cmd->device->request_queue; struct request *req = cmd->request; int error = 0; @@ -773,12 +739,22 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) if (!sense_deferred) error = -EIO; } + + req->resid_len = scsi_get_resid(cmd); + if (scsi_bidi_cmnd(cmd)) { - /* will also release_buffers */ - scsi_end_bidi_request(cmd); + /* + * Bidi commands Must be complete as a whole, + * both sides at once. + */ + req->next_rq->resid_len = scsi_in(cmd)->resid; + + blk_end_request_all(req, 0); + + scsi_release_buffers(cmd); + scsi_next_command(cmd); return; } - req->data_len = scsi_get_resid(cmd); } BUG_ON(blk_bidi_rq(req)); /* bidi not support for !blk_pc_request yet */ @@ -787,9 +763,9 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) * Next deal with any sectors which we were able to correctly * handle. */ - SCSI_LOG_HLCOMPLETE(1, printk("%ld sectors total, " + SCSI_LOG_HLCOMPLETE(1, printk("%u sectors total, " "%d bytes done.\n", - req->nr_sectors, good_bytes)); + blk_rq_sectors(req), good_bytes)); /* * Recovered errors need reporting, but they're always treated @@ -812,7 +788,6 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) */ if (scsi_end_request(cmd, error, good_bytes, result == 0) == NULL) return; - this_count = blk_rq_bytes(req); error = -EIO; @@ -922,7 +897,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) if (driver_byte(result) & DRIVER_SENSE) scsi_print_sense("", cmd); } - blk_end_request(req, -EIO, blk_rq_bytes(req)); + blk_end_request_all(req, -EIO); scsi_next_command(cmd); break; case ACTION_REPREP: @@ -965,10 +940,7 @@ static int scsi_init_sgtable(struct request *req, struct scsi_data_buffer *sdb, count = blk_rq_map_sg(req->q, req, sdb->table.sgl); BUG_ON(count > sdb->table.nents); sdb->table.nents = count; - if (blk_pc_request(req)) - sdb->length = req->data_len; - else - sdb->length = req->nr_sectors << 9; + sdb->length = blk_rq_bytes(req); return BLKPREP_OK; } @@ -1087,22 +1059,21 @@ int scsi_setup_blk_pc_cmnd(struct scsi_device *sdev, struct request *req) if (unlikely(ret)) return ret; } else { - BUG_ON(req->data_len); - BUG_ON(req->data); + BUG_ON(blk_rq_bytes(req)); memset(&cmd->sdb, 0, sizeof(cmd->sdb)); req->buffer = NULL; } cmd->cmd_len = req->cmd_len; - if (!req->data_len) + if (!blk_rq_bytes(req)) cmd->sc_data_direction = DMA_NONE; else if (rq_data_dir(req) == WRITE) cmd->sc_data_direction = DMA_TO_DEVICE; else cmd->sc_data_direction = DMA_FROM_DEVICE; - cmd->transfersize = req->data_len; + cmd->transfersize = blk_rq_bytes(req); cmd->allowed = req->retries; return BLKPREP_OK; } @@ -1212,7 +1183,7 @@ int scsi_prep_return(struct request_queue *q, struct request *req, int ret) break; case BLKPREP_DEFER: /* - * If we defer, the elv_next_request() returns NULL, but the + * If we defer, the blk_peek_request() returns NULL, but the * queue must be restarted, so we plug here if no returning * command will automatically do that. */ @@ -1388,7 +1359,7 @@ static void scsi_kill_request(struct request *req, struct request_queue *q) struct scsi_target *starget = scsi_target(sdev); struct Scsi_Host *shost = sdev->host; - blkdev_dequeue_request(req); + blk_start_request(req); if (unlikely(cmd == NULL)) { printk(KERN_CRIT "impossible request in %s.\n", @@ -1480,7 +1451,7 @@ static void scsi_request_fn(struct request_queue *q) if (!sdev) { printk("scsi: killing requests for dead queue\n"); - while ((req = elv_next_request(q)) != NULL) + while ((req = blk_peek_request(q)) != NULL) scsi_kill_request(req, q); return; } @@ -1501,7 +1472,7 @@ static void scsi_request_fn(struct request_queue *q) * that the request is fully prepared even if we cannot * accept it. */ - req = elv_next_request(q); + req = blk_peek_request(q); if (!req || !scsi_dev_queue_ready(q, sdev)) break; @@ -1517,7 +1488,7 @@ static void scsi_request_fn(struct request_queue *q) * Remove the request from the request list. */ if (!(blk_queue_tagged(q) && !blk_queue_start_tag(q, req))) - blkdev_dequeue_request(req); + blk_start_request(req); sdev->device_busy++; spin_unlock(q->queue_lock); diff --git a/drivers/scsi/scsi_tgt_lib.c b/drivers/scsi/scsi_tgt_lib.c index 48ba413f7f6..10303272ba4 100644 --- a/drivers/scsi/scsi_tgt_lib.c +++ b/drivers/scsi/scsi_tgt_lib.c @@ -387,7 +387,7 @@ static int scsi_map_user_pages(struct scsi_tgt_cmd *tcmd, struct scsi_cmnd *cmd, * we use REQ_TYPE_BLOCK_PC so scsi_init_io doesn't set the * length for us. */ - cmd->sdb.length = rq->data_len; + cmd->sdb.length = blk_rq_bytes(rq); return 0; diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c index 50988cbf7b2..d606452297c 100644 --- a/drivers/scsi/scsi_transport_sas.c +++ b/drivers/scsi/scsi_transport_sas.c @@ -163,12 +163,10 @@ static void sas_smp_request(struct request_queue *q, struct Scsi_Host *shost, int (*handler)(struct Scsi_Host *, struct sas_rphy *, struct request *); while (!blk_queue_plugged(q)) { - req = elv_next_request(q); + req = blk_fetch_request(q); if (!req) break; - blkdev_dequeue_request(req); - spin_unlock_irq(q->queue_lock); handler = to_sas_internal(shost->transportt)->f->smp_handler; diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 84044233b63..bcf3bd40bbd 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -384,9 +384,9 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) struct scsi_device *sdp = q->queuedata; struct gendisk *disk = rq->rq_disk; struct scsi_disk *sdkp; - sector_t block = rq->sector; + sector_t block = blk_rq_pos(rq); sector_t threshold; - unsigned int this_count = rq->nr_sectors; + unsigned int this_count = blk_rq_sectors(rq); int ret, host_dif; if (rq->cmd_type == REQ_TYPE_BLOCK_PC) { @@ -413,10 +413,10 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) this_count)); if (!sdp || !scsi_device_online(sdp) || - block + rq->nr_sectors > get_capacity(disk)) { + block + blk_rq_sectors(rq) > get_capacity(disk)) { SCSI_LOG_HLQUEUE(2, scmd_printk(KERN_INFO, SCpnt, - "Finishing %ld sectors\n", - rq->nr_sectors)); + "Finishing %u sectors\n", + blk_rq_sectors(rq))); SCSI_LOG_HLQUEUE(2, scmd_printk(KERN_INFO, SCpnt, "Retry with 0x%p\n", SCpnt)); goto out; @@ -463,7 +463,7 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) * for this. */ if (sdp->sector_size == 1024) { - if ((block & 1) || (rq->nr_sectors & 1)) { + if ((block & 1) || (blk_rq_sectors(rq) & 1)) { scmd_printk(KERN_ERR, SCpnt, "Bad block number requested\n"); goto out; @@ -473,7 +473,7 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) } } if (sdp->sector_size == 2048) { - if ((block & 3) || (rq->nr_sectors & 3)) { + if ((block & 3) || (blk_rq_sectors(rq) & 3)) { scmd_printk(KERN_ERR, SCpnt, "Bad block number requested\n"); goto out; @@ -483,7 +483,7 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) } } if (sdp->sector_size == 4096) { - if ((block & 7) || (rq->nr_sectors & 7)) { + if ((block & 7) || (blk_rq_sectors(rq) & 7)) { scmd_printk(KERN_ERR, SCpnt, "Bad block number requested\n"); goto out; @@ -512,10 +512,10 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) } SCSI_LOG_HLQUEUE(2, scmd_printk(KERN_INFO, SCpnt, - "%s %d/%ld 512 byte blocks.\n", + "%s %d/%u 512 byte blocks.\n", (rq_data_dir(rq) == WRITE) ? "writing" : "reading", this_count, - rq->nr_sectors)); + blk_rq_sectors(rq))); /* Set RDPROTECT/WRPROTECT if disk is formatted with DIF */ host_dif = scsi_host_dif_capable(sdp->host, sdkp->protection_type); @@ -971,8 +971,8 @@ static struct block_device_operations sd_fops = { static unsigned int sd_completed_bytes(struct scsi_cmnd *scmd) { - u64 start_lba = scmd->request->sector; - u64 end_lba = scmd->request->sector + (scsi_bufflen(scmd) / 512); + u64 start_lba = blk_rq_pos(scmd->request); + u64 end_lba = blk_rq_pos(scmd->request) + (scsi_bufflen(scmd) / 512); u64 bad_lba; int info_valid; @@ -1510,7 +1510,7 @@ got_data: */ sector_size = 512; } - blk_queue_hardsect_size(sdp->request_queue, sector_size); + blk_queue_logical_block_size(sdp->request_queue, sector_size); { char cap_str_2[10], cap_str_10[10]; diff --git a/drivers/scsi/sd_dif.c b/drivers/scsi/sd_dif.c index 184dff49279..82f14a9482d 100644 --- a/drivers/scsi/sd_dif.c +++ b/drivers/scsi/sd_dif.c @@ -507,7 +507,7 @@ void sd_dif_complete(struct scsi_cmnd *scmd, unsigned int good_bytes) sector_sz = scmd->device->sector_size; sectors = good_bytes / sector_sz; - phys = scmd->request->sector & 0xffffffff; + phys = blk_rq_pos(scmd->request) & 0xffffffff; if (sector_sz == 4096) phys >>= 3; diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index e1716f14cd4..8201387b4da 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -289,8 +289,8 @@ sg_open(struct inode *inode, struct file *filp) if (list_empty(&sdp->sfds)) { /* no existing opens on this device */ sdp->sgdebug = 0; q = sdp->device->request_queue; - sdp->sg_tablesize = min(q->max_hw_segments, - q->max_phys_segments); + sdp->sg_tablesize = min(queue_max_hw_segments(q), + queue_max_phys_segments(q)); } if ((sfp = sg_add_sfp(sdp, dev))) filp->private_data = sfp; @@ -909,7 +909,7 @@ sg_ioctl(struct inode *inode, struct file *filp, if (val < 0) return -EINVAL; val = min_t(int, val, - sdp->device->request_queue->max_sectors * 512); + queue_max_sectors(sdp->device->request_queue) * 512); if (val != sfp->reserve.bufflen) { if (sg_res_in_use(sfp) || sfp->mmap_called) return -EBUSY; @@ -919,7 +919,7 @@ sg_ioctl(struct inode *inode, struct file *filp, return 0; case SG_GET_RESERVED_SIZE: val = min_t(int, sfp->reserve.bufflen, - sdp->device->request_queue->max_sectors * 512); + queue_max_sectors(sdp->device->request_queue) * 512); return put_user(val, ip); case SG_SET_COMMAND_Q: result = get_user(val, ip); @@ -1059,12 +1059,13 @@ sg_ioctl(struct inode *inode, struct file *filp, return -ENODEV; return scsi_ioctl(sdp->device, cmd_in, p); case BLKSECTGET: - return put_user(sdp->device->request_queue->max_sectors * 512, + return put_user(queue_max_sectors(sdp->device->request_queue) * 512, ip); case BLKTRACESETUP: return blk_trace_setup(sdp->device->request_queue, sdp->disk->disk_name, MKDEV(SCSI_GENERIC_MAJOR, sdp->index), + NULL, (char *)arg); case BLKTRACESTART: return blk_trace_startstop(sdp->device->request_queue, 1); @@ -1260,7 +1261,7 @@ static void sg_rq_end_io(struct request *rq, int uptodate) sense = rq->sense; result = rq->errors; - resid = rq->data_len; + resid = rq->resid_len; SCSI_LOG_TIMEOUT(4, printk("sg_cmd_done: %s, pack_id=%d, res=0x%x\n", sdp->disk->disk_name, srp->header.pack_id, result)); @@ -1377,7 +1378,8 @@ static Sg_device *sg_alloc(struct gendisk *disk, struct scsi_device *scsidp) sdp->device = scsidp; INIT_LIST_HEAD(&sdp->sfds); init_waitqueue_head(&sdp->o_excl_wait); - sdp->sg_tablesize = min(q->max_hw_segments, q->max_phys_segments); + sdp->sg_tablesize = min(queue_max_hw_segments(q), + queue_max_phys_segments(q)); sdp->index = k; kref_init(&sdp->d_ref); @@ -2055,7 +2057,7 @@ sg_add_sfp(Sg_device * sdp, int dev) sg_big_buff = def_reserved_size; bufflen = min_t(int, sg_big_buff, - sdp->device->request_queue->max_sectors * 512); + queue_max_sectors(sdp->device->request_queue) * 512); sg_build_reserve(sfp, bufflen); SCSI_LOG_TIMEOUT(3, printk("sg_add_sfp: bufflen=%d, k_use_sg=%d\n", sfp->reserve.bufflen, sfp->reserve.k_use_sg)); diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index 0e1a0f2d2ad..cd350dfc121 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -292,7 +292,8 @@ static int sr_done(struct scsi_cmnd *SCpnt) if (cd->device->sector_size == 2048) error_sector <<= 2; error_sector &= ~(block_sectors - 1); - good_bytes = (error_sector - SCpnt->request->sector) << 9; + good_bytes = (error_sector - + blk_rq_pos(SCpnt->request)) << 9; if (good_bytes < 0 || good_bytes >= this_count) good_bytes = 0; /* @@ -349,8 +350,8 @@ static int sr_prep_fn(struct request_queue *q, struct request *rq) cd->disk->disk_name, block)); if (!cd->device || !scsi_device_online(cd->device)) { - SCSI_LOG_HLQUEUE(2, printk("Finishing %ld sectors\n", - rq->nr_sectors)); + SCSI_LOG_HLQUEUE(2, printk("Finishing %u sectors\n", + blk_rq_sectors(rq))); SCSI_LOG_HLQUEUE(2, printk("Retry with 0x%p\n", SCpnt)); goto out; } @@ -413,7 +414,7 @@ static int sr_prep_fn(struct request_queue *q, struct request *rq) /* * request doesn't start on hw block boundary, add scatter pads */ - if (((unsigned int)rq->sector % (s_size >> 9)) || + if (((unsigned int)blk_rq_pos(rq) % (s_size >> 9)) || (scsi_bufflen(SCpnt) % s_size)) { scmd_printk(KERN_NOTICE, SCpnt, "unaligned transfer\n"); goto out; @@ -422,14 +423,14 @@ static int sr_prep_fn(struct request_queue *q, struct request *rq) this_count = (scsi_bufflen(SCpnt) >> 9) / (s_size >> 9); - SCSI_LOG_HLQUEUE(2, printk("%s : %s %d/%ld 512 byte blocks.\n", + SCSI_LOG_HLQUEUE(2, printk("%s : %s %d/%u 512 byte blocks.\n", cd->cdi.name, (rq_data_dir(rq) == WRITE) ? "writing" : "reading", - this_count, rq->nr_sectors)); + this_count, blk_rq_sectors(rq))); SCpnt->cmnd[1] = 0; - block = (unsigned int)rq->sector / (s_size >> 9); + block = (unsigned int)blk_rq_pos(rq) / (s_size >> 9); if (this_count > 0xffff) { this_count = 0xffff; @@ -726,7 +727,7 @@ static void get_sectorsize(struct scsi_cd *cd) } queue = cd->device->request_queue; - blk_queue_hardsect_size(queue, sector_size); + blk_queue_logical_block_size(queue, sector_size); return; } diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index eb24efea8f1..89bd438e1fe 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -463,7 +463,7 @@ static void st_scsi_execute_end(struct request *req, int uptodate) struct scsi_tape *STp = SRpnt->stp; STp->buffer->cmdstat.midlevel_result = SRpnt->result = req->errors; - STp->buffer->cmdstat.residual = req->data_len; + STp->buffer->cmdstat.residual = req->resid_len; if (SRpnt->waiting) complete(SRpnt->waiting); @@ -3983,8 +3983,8 @@ static int st_probe(struct device *dev) return -ENODEV; } - i = min(SDp->request_queue->max_hw_segments, - SDp->request_queue->max_phys_segments); + i = min(queue_max_hw_segments(SDp->request_queue), + queue_max_phys_segments(SDp->request_queue)); if (st_max_sg_segs < i) i = st_max_sg_segs; buffer = new_tape_buffer((SDp->host)->unchecked_isa_dma, i); diff --git a/drivers/scsi/u14-34f.c b/drivers/scsi/u14-34f.c index 601e95141cb..54023d41fd1 100644 --- a/drivers/scsi/u14-34f.c +++ b/drivers/scsi/u14-34f.c @@ -1306,7 +1306,7 @@ static int u14_34f_queuecommand(struct scsi_cmnd *SCpnt, void (*done)(struct scs if (linked_comm && SCpnt->device->queue_depth > 2 && TLDEV(SCpnt->device->type)) { HD(j)->cp_stat[i] = READY; - flush_dev(SCpnt->device, SCpnt->request->sector, j, FALSE); + flush_dev(SCpnt->device, blk_rq_pos(SCpnt->request), j, FALSE); return 0; } @@ -1610,11 +1610,13 @@ static int reorder(unsigned int j, unsigned long cursec, if (!(cpp->xdir == DTD_IN)) input_only = FALSE; - if (SCpnt->request->sector < minsec) minsec = SCpnt->request->sector; - if (SCpnt->request->sector > maxsec) maxsec = SCpnt->request->sector; + if (blk_rq_pos(SCpnt->request) < minsec) + minsec = blk_rq_pos(SCpnt->request); + if (blk_rq_pos(SCpnt->request) > maxsec) + maxsec = blk_rq_pos(SCpnt->request); - sl[n] = SCpnt->request->sector; - ioseek += SCpnt->request->nr_sectors; + sl[n] = blk_rq_pos(SCpnt->request); + ioseek += blk_rq_sectors(SCpnt->request); if (!n) continue; @@ -1642,7 +1644,7 @@ static int reorder(unsigned int j, unsigned long cursec, if (!input_only) for (n = 0; n < n_ready; n++) { k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt; - ll[n] = SCpnt->request->nr_sectors; pl[n] = SCpnt->serial_number; + ll[n] = blk_rq_sectors(SCpnt->request); pl[n] = SCpnt->serial_number; if (!n) continue; @@ -1666,12 +1668,12 @@ static int reorder(unsigned int j, unsigned long cursec, if (link_statistics && (overlap || !(flushcount % link_statistics))) for (n = 0; n < n_ready; n++) { k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt; - printk("%s %d.%d:%d pid %ld mb %d fc %d nr %d sec %ld ns %ld"\ + printk("%s %d.%d:%d pid %ld mb %d fc %d nr %d sec %ld ns %u"\ " cur %ld s:%c r:%c rev:%c in:%c ov:%c xd %d.\n", (ihdlr ? "ihdlr" : "qcomm"), SCpnt->channel, SCpnt->target, SCpnt->lun, SCpnt->serial_number, k, flushcount, n_ready, - SCpnt->request->sector, SCpnt->request->nr_sectors, cursec, - YESNO(s), YESNO(r), YESNO(rev), YESNO(input_only), + blk_rq_pos(SCpnt->request), blk_rq_sectors(SCpnt->request), + cursec, YESNO(s), YESNO(r), YESNO(rev), YESNO(input_only), YESNO(overlap), cpp->xdir); } #endif @@ -1799,7 +1801,7 @@ static irqreturn_t ihdlr(unsigned int j) if (linked_comm && SCpnt->device->queue_depth > 2 && TLDEV(SCpnt->device->type)) - flush_dev(SCpnt->device, SCpnt->request->sector, j, TRUE); + flush_dev(SCpnt->device, blk_rq_pos(SCpnt->request), j, TRUE); tstatus = status_byte(spp->target_status); diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c index a0127e93ade..fb867a9f55e 100644 --- a/drivers/serial/8250.c +++ b/drivers/serial/8250.c @@ -287,6 +287,13 @@ static const struct serial8250_config uart_config[] = { .fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10, .flags = UART_CAP_FIFO, }, + [PORT_AR7] = { + .name = "AR7", + .fifo_size = 16, + .tx_loadsz = 16, + .fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_00, + .flags = UART_CAP_FIFO | UART_CAP_AFE, + }, }; #if defined (CONFIG_SERIAL_8250_AU1X00) diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c index 938bc1b6c3f..e371a9c1534 100644 --- a/drivers/serial/8250_pci.c +++ b/drivers/serial/8250_pci.c @@ -2776,6 +2776,9 @@ static struct pci_device_id serial_pci_tbl[] = { { PCI_VENDOR_ID_OXSEMI, 0x950a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_b0_2_1130000 }, + { PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_C950, + PCI_VENDOR_ID_OXSEMI, PCI_SUBDEVICE_ID_OXSEMI_C950, 0, 0, + pbn_b0_1_921600 }, { PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI954, PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_b0_4_115200 }, diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index 343e3a35b6a..641e800ed69 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig @@ -833,6 +833,7 @@ config SERIAL_IMX bool "IMX serial port support" depends on ARM && (ARCH_IMX || ARCH_MXC) select SERIAL_CORE + select RATIONAL help If you have a machine based on a Motorola IMX CPU you can enable its onboard serial port by enabling this option. @@ -1433,4 +1434,11 @@ config SPORT_BAUD_RATE default 19200 if (SERIAL_SPORT_BAUD_RATE_19200) default 9600 if (SERIAL_SPORT_BAUD_RATE_9600) +config SERIAL_TIMBERDALE + tristate "Support for timberdale UART" + depends on MFD_TIMBERDALE + select SERIAL_CORE + ---help--- + Add support for UART controller on timberdale. + endmenu diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile index d438eb2a73d..45a8658f54d 100644 --- a/drivers/serial/Makefile +++ b/drivers/serial/Makefile @@ -77,3 +77,4 @@ obj-$(CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL) += nwpserial.o obj-$(CONFIG_SERIAL_KS8695) += serial_ks8695.o obj-$(CONFIG_KGDB_SERIAL_CONSOLE) += kgdboc.o obj-$(CONFIG_SERIAL_QE) += ucc_uart.o +obj-$(CONFIG_SERIAL_TIMBERDALE) += timbuart.o diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index d86123e0339..e2f6b1bfac9 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -330,6 +330,11 @@ static void bfin_serial_tx_chars(struct bfin_serial_port *uart) /* Clear TFI bit */ UART_PUT_LSR(uart, TFI); #endif + /* Anomaly notes: + * 05000215 - we always clear ETBEI within last UART TX + * interrupt to end a string. It is always set + * when start a new tx. + */ UART_CLEAR_IER(uart, ETBEI); return; } @@ -415,6 +420,7 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart) set_dma_start_addr(uart->tx_dma_channel, (unsigned long)(xmit->buf+xmit->tail)); set_dma_x_count(uart->tx_dma_channel, uart->tx_count); set_dma_x_modify(uart->tx_dma_channel, 1); + SSYNC(); enable_dma(uart->tx_dma_channel); UART_SET_IER(uart, ETBEI); @@ -473,27 +479,41 @@ static void bfin_serial_dma_rx_chars(struct bfin_serial_port *uart) void bfin_serial_rx_dma_timeout(struct bfin_serial_port *uart) { int x_pos, pos; - unsigned long flags; - - spin_lock_irqsave(&uart->port.lock, flags); + dma_disable_irq(uart->rx_dma_channel); + spin_lock_bh(&uart->port.lock); + + /* 2D DMA RX buffer ring is used. Because curr_y_count and + * curr_x_count can't be read as an atomic operation, + * curr_y_count should be read before curr_x_count. When + * curr_x_count is read, curr_y_count may already indicate + * next buffer line. But, the position calculated here is + * still indicate the old line. The wrong position data may + * be smaller than current buffer tail, which cause garbages + * are received if it is not prohibit. + */ uart->rx_dma_nrows = get_dma_curr_ycount(uart->rx_dma_channel); x_pos = get_dma_curr_xcount(uart->rx_dma_channel); uart->rx_dma_nrows = DMA_RX_YCOUNT - uart->rx_dma_nrows; - if (uart->rx_dma_nrows == DMA_RX_YCOUNT) + if (uart->rx_dma_nrows == DMA_RX_YCOUNT || x_pos == 0) uart->rx_dma_nrows = 0; x_pos = DMA_RX_XCOUNT - x_pos; if (x_pos == DMA_RX_XCOUNT) x_pos = 0; pos = uart->rx_dma_nrows * DMA_RX_XCOUNT + x_pos; - if (pos != uart->rx_dma_buf.tail) { + /* Ignore receiving data if new position is in the same line of + * current buffer tail and small. + */ + if (pos > uart->rx_dma_buf.tail || + uart->rx_dma_nrows < (uart->rx_dma_buf.tail/DMA_RX_XCOUNT)) { uart->rx_dma_buf.head = pos; bfin_serial_dma_rx_chars(uart); uart->rx_dma_buf.tail = uart->rx_dma_buf.head; } - spin_unlock_irqrestore(&uart->port.lock, flags); + spin_unlock_bh(&uart->port.lock); + dma_enable_irq(uart->rx_dma_channel); mod_timer(&(uart->rx_dma_timer), jiffies + DMA_RX_FLUSH_JIFFIES); } @@ -514,6 +534,11 @@ static irqreturn_t bfin_serial_dma_tx_int(int irq, void *dev_id) if (!(get_dma_curr_irqstat(uart->tx_dma_channel)&DMA_RUN)) { disable_dma(uart->tx_dma_channel); clear_dma_irqstat(uart->tx_dma_channel); + /* Anomaly notes: + * 05000215 - we always clear ETBEI within last UART TX + * interrupt to end a string. It is always set + * when start a new tx. + */ UART_CLEAR_IER(uart, ETBEI); xmit->tail = (xmit->tail + uart->tx_count) & (UART_XMIT_SIZE - 1); uart->port.icount.tx += uart->tx_count; @@ -532,11 +557,26 @@ static irqreturn_t bfin_serial_dma_rx_int(int irq, void *dev_id) { struct bfin_serial_port *uart = dev_id; unsigned short irqstat; + int x_pos, pos; spin_lock(&uart->port.lock); irqstat = get_dma_curr_irqstat(uart->rx_dma_channel); clear_dma_irqstat(uart->rx_dma_channel); - bfin_serial_dma_rx_chars(uart); + + uart->rx_dma_nrows = get_dma_curr_ycount(uart->rx_dma_channel); + x_pos = get_dma_curr_xcount(uart->rx_dma_channel); + uart->rx_dma_nrows = DMA_RX_YCOUNT - uart->rx_dma_nrows; + if (uart->rx_dma_nrows == DMA_RX_YCOUNT || x_pos == 0) + uart->rx_dma_nrows = 0; + + pos = uart->rx_dma_nrows * DMA_RX_XCOUNT; + if (pos > uart->rx_dma_buf.tail || + uart->rx_dma_nrows < (uart->rx_dma_buf.tail/DMA_RX_XCOUNT)) { + uart->rx_dma_buf.head = pos; + bfin_serial_dma_rx_chars(uart); + uart->rx_dma_buf.tail = uart->rx_dma_buf.head; + } + spin_unlock(&uart->port.lock); return IRQ_HANDLED; @@ -789,8 +829,16 @@ bfin_serial_set_termios(struct uart_port *port, struct ktermios *termios, __func__); } - if (termios->c_cflag & CSTOPB) - lcr |= STB; + /* Anomaly notes: + * 05000231 - STOP bit is always set to 1 whatever the user is set. + */ + if (termios->c_cflag & CSTOPB) { + if (ANOMALY_05000231) + printk(KERN_WARNING "STOP bits other than 1 is not " + "supported in case of anomaly 05000231.\n"); + else + lcr |= STB; + } if (termios->c_cflag & PARENB) lcr |= PEN; if (!(termios->c_cflag & PARODD)) @@ -940,6 +988,10 @@ static void bfin_serial_reset_irda(struct uart_port *port) } #ifdef CONFIG_CONSOLE_POLL +/* Anomaly notes: + * 05000099 - Because we only use THRE in poll_put and DR in poll_get, + * losing other bits of UART_LSR is not a problem here. + */ static void bfin_serial_poll_put_char(struct uart_port *port, unsigned char chr) { struct bfin_serial_port *uart = (struct bfin_serial_port *)port; @@ -1245,12 +1297,17 @@ static __init void early_serial_write(struct console *con, const char *s, } } +/* + * This should have a .setup or .early_setup in it, but then things get called + * without the command line options, and the baud rate gets messed up - so + * don't let the common infrastructure play with things. (see calls to setup + * & earlysetup in ./kernel/printk.c:register_console() + */ static struct __initdata console bfin_early_serial_console = { .name = "early_BFuart", .write = early_serial_write, .device = uart_console_device, .flags = CON_PRINTBUFFER, - .setup = bfin_serial_console_setup, .index = -1, .data = &bfin_serial_reg, }; diff --git a/drivers/serial/bfin_sport_uart.c b/drivers/serial/bfin_sport_uart.c index 529c0ff7952..34b4ae0fe76 100644 --- a/drivers/serial/bfin_sport_uart.c +++ b/drivers/serial/bfin_sport_uart.c @@ -101,15 +101,16 @@ static inline void tx_one_byte(struct sport_uart_port *up, unsigned int value) { pr_debug("%s value:%x\n", __func__, value); /* Place a Start and Stop bit */ - __asm__ volatile ( - "R2 = b#01111111100;\n\t" - "R3 = b#10000000001;\n\t" - "%0 <<= 2;\n\t" - "%0 = %0 & R2;\n\t" - "%0 = %0 | R3;\n\t" - :"=r"(value) - :"0"(value) - :"R2", "R3"); + __asm__ __volatile__ ( + "R2 = b#01111111100;" + "R3 = b#10000000001;" + "%0 <<= 2;" + "%0 = %0 & R2;" + "%0 = %0 | R3;" + : "=d"(value) + : "d"(value) + : "ASTAT", "R2", "R3" + ); pr_debug("%s value:%x\n", __func__, value); SPORT_PUT_TX(up, value); @@ -118,27 +119,30 @@ static inline void tx_one_byte(struct sport_uart_port *up, unsigned int value) static inline unsigned int rx_one_byte(struct sport_uart_port *up) { unsigned int value, extract; + u32 tmp_mask1, tmp_mask2, tmp_shift, tmp; value = SPORT_GET_RX32(up); pr_debug("%s value:%x\n", __func__, value); /* Extract 8 bits data */ - __asm__ volatile ( - "R5 = 0;\n\t" - "P0 = 8;\n\t" - "R1 = 0x1801(Z);\n\t" - "R3 = 0x0300(Z);\n\t" - "R4 = 0;\n\t" - "LSETUP(loop_s, loop_e) LC0 = P0;\nloop_s:\t" - "R2 = extract(%1, R1.L)(Z);\n\t" - "R2 <<= R4;\n\t" - "R5 = R5 | R2;\n\t" - "R1 = R1 - R3;\nloop_e:\t" - "R4 += 1;\n\t" - "%0 = R5;\n\t" - :"=r"(extract) - :"r"(value) - :"P0", "R1", "R2","R3","R4", "R5"); + __asm__ __volatile__ ( + "%[extr] = 0;" + "%[mask1] = 0x1801(Z);" + "%[mask2] = 0x0300(Z);" + "%[shift] = 0;" + "LSETUP(.Lloop_s, .Lloop_e) LC0 = %[lc];" + ".Lloop_s:" + "%[tmp] = extract(%[val], %[mask1].L)(Z);" + "%[tmp] <<= %[shift];" + "%[extr] = %[extr] | %[tmp];" + "%[mask1] = %[mask1] - %[mask2];" + ".Lloop_e:" + "%[shift] += 1;" + : [val]"=d"(value), [extr]"=d"(extract), [shift]"=d"(tmp_shift), [tmp]"=d"(tmp), + [mask1]"=d"(tmp_mask1), [mask2]"=d"(tmp_mask2) + : "d"(value), [lc]"a"(8) + : "ASTAT", "LB0", "LC0", "LT0" + ); pr_debug(" extract:%x\n", extract); return extract; @@ -149,7 +153,7 @@ static int sport_uart_setup(struct sport_uart_port *up, int sclk, int baud_rate) int tclkdiv, tfsdiv, rclkdiv; /* Set TCR1 and TCR2 */ - SPORT_PUT_TCR1(up, (LTFS | ITFS | TFSR | TLSBIT | ITCLK)); + SPORT_PUT_TCR1(up, (LATFS | ITFS | TFSR | TLSBIT | ITCLK)); SPORT_PUT_TCR2(up, 10); pr_debug("%s TCR1:%x, TCR2:%x\n", __func__, SPORT_GET_TCR1(up), SPORT_GET_TCR2(up)); @@ -419,7 +423,7 @@ static void sport_shutdown(struct uart_port *port) } static void sport_set_termios(struct uart_port *port, - struct termios *termios, struct termios *old) + struct ktermios *termios, struct ktermios *old) { pr_debug("%s enter, c_cflag:%08x\n", __func__, termios->c_cflag); uart_update_timeout(port, CS8 ,port->uartclk); diff --git a/drivers/serial/icom.c b/drivers/serial/icom.c index a461b3b2c72..9f2891c2c4a 100644 --- a/drivers/serial/icom.c +++ b/drivers/serial/icom.c @@ -137,7 +137,12 @@ static LIST_HEAD(icom_adapter_head); static spinlock_t icom_lock; #ifdef ICOM_TRACE -static inline void trace(struct icom_port *, char *, unsigned long) {}; +static inline void trace(struct icom_port *icom_port, char *trace_pt, + unsigned long trace_data) +{ + dev_info(&icom_port->adapter->pci_dev->dev, ":%d:%s - %lx\n", + icom_port->port, trace_pt, trace_data); +} #else static inline void trace(struct icom_port *icom_port, char *trace_pt, unsigned long trace_data) {}; #endif @@ -408,7 +413,7 @@ static void load_code(struct icom_port *icom_port) release_firmware(fw); /* Set Hardware level */ - if ((icom_port->adapter->version | ADAPTER_V2) == ADAPTER_V2) + if (icom_port->adapter->version == ADAPTER_V2) writeb(V2_HARDWARE, &(icom_port->dram->misc_flags)); /* Start the processor in Adapter */ @@ -861,7 +866,7 @@ static irqreturn_t icom_interrupt(int irq, void *dev_id) /* find icom_port for this interrupt */ icom_adapter = (struct icom_adapter *) dev_id; - if ((icom_adapter->version | ADAPTER_V2) == ADAPTER_V2) { + if (icom_adapter->version == ADAPTER_V2) { int_reg = icom_adapter->base_addr + 0x8024; adapter_interrupts = readl(int_reg); @@ -1647,15 +1652,6 @@ static void __exit icom_exit(void) module_init(icom_init); module_exit(icom_exit); -#ifdef ICOM_TRACE -static inline void trace(struct icom_port *icom_port, char *trace_pt, - unsigned long trace_data) -{ - dev_info(&icom_port->adapter->pci_dev->dev, ":%d:%s - %lx\n", - icom_port->port, trace_pt, trace_data); -} -#endif - MODULE_AUTHOR("Michael Anderson <mjanders@us.ibm.com>"); MODULE_DESCRIPTION("IBM iSeries Serial IOA driver"); MODULE_SUPPORTED_DEVICE diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c index 9f460b175c5..7b5d1de9cfe 100644 --- a/drivers/serial/imx.c +++ b/drivers/serial/imx.c @@ -8,6 +8,9 @@ * Author: Sascha Hauer <sascha@saschahauer.de> * Copyright (C) 2004 Pengutronix * + * Copyright (C) 2009 emlix GmbH + * Author: Fabian Godehardt (added IrDA support for iMX) + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or @@ -41,6 +44,8 @@ #include <linux/serial_core.h> #include <linux/serial.h> #include <linux/clk.h> +#include <linux/delay.h> +#include <linux/rational.h> #include <asm/io.h> #include <asm/irq.h> @@ -148,6 +153,7 @@ #define UCR4_DREN (1<<0) /* Recv data ready interrupt enable */ #define UFCR_RXTL_SHF 0 /* Receiver trigger level shift */ #define UFCR_RFDIV (7<<7) /* Reference freq divider mask */ +#define UFCR_RFDIV_REG(x) (((x) < 7 ? 6 - (x) : 6) << 7) #define UFCR_TXTL_SHF 10 /* Transmitter trigger level shift */ #define USR1_PARITYERR (1<<15) /* Parity error interrupt flag */ #define USR1_RTSS (1<<14) /* RTS pin status */ @@ -211,10 +217,20 @@ struct imx_port { struct timer_list timer; unsigned int old_status; int txirq,rxirq,rtsirq; - int have_rtscts:1; + unsigned int have_rtscts:1; + unsigned int use_irda:1; + unsigned int irda_inv_rx:1; + unsigned int irda_inv_tx:1; + unsigned short trcv_delay; /* transceiver delay */ struct clk *clk; }; +#ifdef CONFIG_IRDA +#define USE_IRDA(sport) ((sport)->use_irda) +#else +#define USE_IRDA(sport) (0) +#endif + /* * Handle any change of modem status signal since we were last called. */ @@ -268,6 +284,48 @@ static void imx_stop_tx(struct uart_port *port) struct imx_port *sport = (struct imx_port *)port; unsigned long temp; + if (USE_IRDA(sport)) { + /* half duplex - wait for end of transmission */ + int n = 256; + while ((--n > 0) && + !(readl(sport->port.membase + USR2) & USR2_TXDC)) { + udelay(5); + barrier(); + } + /* + * irda transceiver - wait a bit more to avoid + * cutoff, hardware dependent + */ + udelay(sport->trcv_delay); + + /* + * half duplex - reactivate receive mode, + * flush receive pipe echo crap + */ + if (readl(sport->port.membase + USR2) & USR2_TXDC) { + temp = readl(sport->port.membase + UCR1); + temp &= ~(UCR1_TXMPTYEN | UCR1_TRDYEN); + writel(temp, sport->port.membase + UCR1); + + temp = readl(sport->port.membase + UCR4); + temp &= ~(UCR4_TCEN); + writel(temp, sport->port.membase + UCR4); + + while (readl(sport->port.membase + URXD0) & + URXD_CHARRDY) + barrier(); + + temp = readl(sport->port.membase + UCR1); + temp |= UCR1_RRDYEN; + writel(temp, sport->port.membase + UCR1); + + temp = readl(sport->port.membase + UCR4); + temp |= UCR4_DREN; + writel(temp, sport->port.membase + UCR4); + } + return; + } + temp = readl(sport->port.membase + UCR1); writel(temp & ~UCR1_TXMPTYEN, sport->port.membase + UCR1); } @@ -302,13 +360,15 @@ static inline void imx_transmit_buffer(struct imx_port *sport) /* send xmit->buf[xmit->tail] * out the port here */ writel(xmit->buf[xmit->tail], sport->port.membase + URTX0); - xmit->tail = (xmit->tail + 1) & - (UART_XMIT_SIZE - 1); + xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); sport->port.icount.tx++; if (uart_circ_empty(xmit)) break; } + if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) + uart_write_wakeup(&sport->port); + if (uart_circ_empty(xmit)) imx_stop_tx(&sport->port); } @@ -321,9 +381,30 @@ static void imx_start_tx(struct uart_port *port) struct imx_port *sport = (struct imx_port *)port; unsigned long temp; + if (USE_IRDA(sport)) { + /* half duplex in IrDA mode; have to disable receive mode */ + temp = readl(sport->port.membase + UCR4); + temp &= ~(UCR4_DREN); + writel(temp, sport->port.membase + UCR4); + + temp = readl(sport->port.membase + UCR1); + temp &= ~(UCR1_RRDYEN); + writel(temp, sport->port.membase + UCR1); + } + temp = readl(sport->port.membase + UCR1); writel(temp | UCR1_TXMPTYEN, sport->port.membase + UCR1); + if (USE_IRDA(sport)) { + temp = readl(sport->port.membase + UCR1); + temp |= UCR1_TRDYEN; + writel(temp, sport->port.membase + UCR1); + + temp = readl(sport->port.membase + UCR4); + temp |= UCR4_TCEN; + writel(temp, sport->port.membase + UCR4); + } + if (readl(sport->port.membase + UTS) & UTS_TXEMPTY) imx_transmit_buffer(sport); } @@ -395,8 +476,7 @@ static irqreturn_t imx_rxint(int irq, void *dev_id) continue; } - if (uart_handle_sysrq_char - (&sport->port, (unsigned char)rx)) + if (uart_handle_sysrq_char(&sport->port, (unsigned char)rx)) continue; if (rx & (URXD_PRERR | URXD_OVRRUN | URXD_FRMERR) ) { @@ -471,26 +551,26 @@ static unsigned int imx_tx_empty(struct uart_port *port) */ static unsigned int imx_get_mctrl(struct uart_port *port) { - struct imx_port *sport = (struct imx_port *)port; - unsigned int tmp = TIOCM_DSR | TIOCM_CAR; + struct imx_port *sport = (struct imx_port *)port; + unsigned int tmp = TIOCM_DSR | TIOCM_CAR; - if (readl(sport->port.membase + USR1) & USR1_RTSS) - tmp |= TIOCM_CTS; + if (readl(sport->port.membase + USR1) & USR1_RTSS) + tmp |= TIOCM_CTS; - if (readl(sport->port.membase + UCR2) & UCR2_CTS) - tmp |= TIOCM_RTS; + if (readl(sport->port.membase + UCR2) & UCR2_CTS) + tmp |= TIOCM_RTS; - return tmp; + return tmp; } static void imx_set_mctrl(struct uart_port *port, unsigned int mctrl) { - struct imx_port *sport = (struct imx_port *)port; + struct imx_port *sport = (struct imx_port *)port; unsigned long temp; temp = readl(sport->port.membase + UCR2) & ~UCR2_CTS; - if (mctrl & TIOCM_RTS) + if (mctrl & TIOCM_RTS) temp |= UCR2_CTS; writel(temp, sport->port.membase + UCR2); @@ -534,12 +614,7 @@ static int imx_setup_ufcr(struct imx_port *sport, unsigned int mode) if(!ufcr_rfdiv) ufcr_rfdiv = 1; - if(ufcr_rfdiv >= 7) - ufcr_rfdiv = 6; - else - ufcr_rfdiv = 6 - ufcr_rfdiv; - - val |= UFCR_RFDIV & (ufcr_rfdiv << 7); + val |= UFCR_RFDIV_REG(ufcr_rfdiv); writel(val, sport->port.membase + UFCR); @@ -558,8 +633,24 @@ static int imx_startup(struct uart_port *port) * requesting IRQs */ temp = readl(sport->port.membase + UCR4); + + if (USE_IRDA(sport)) + temp |= UCR4_IRSC; + writel(temp & ~UCR4_DREN, sport->port.membase + UCR4); + if (USE_IRDA(sport)) { + /* reset fifo's and state machines */ + int i = 100; + temp = readl(sport->port.membase + UCR2); + temp &= ~UCR2_SRST; + writel(temp, sport->port.membase + UCR2); + while (!(readl(sport->port.membase + UCR2) & UCR2_SRST) && + (--i > 0)) { + udelay(1); + } + } + /* * Allocate the IRQ(s) i.MX1 has three interrupts whereas later * chips only have one interrupt. @@ -575,12 +666,16 @@ static int imx_startup(struct uart_port *port) if (retval) goto error_out2; - retval = request_irq(sport->rtsirq, imx_rtsint, - (sport->rtsirq < MAX_INTERNAL_IRQ) ? 0 : - IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, - DRIVER_NAME, sport); - if (retval) - goto error_out3; + /* do not use RTS IRQ on IrDA */ + if (!USE_IRDA(sport)) { + retval = request_irq(sport->rtsirq, imx_rtsint, + (sport->rtsirq < MAX_INTERNAL_IRQ) ? 0 : + IRQF_TRIGGER_FALLING | + IRQF_TRIGGER_RISING, + DRIVER_NAME, sport); + if (retval) + goto error_out3; + } } else { retval = request_irq(sport->port.irq, imx_int, 0, DRIVER_NAME, sport); @@ -597,18 +692,49 @@ static int imx_startup(struct uart_port *port) temp = readl(sport->port.membase + UCR1); temp |= UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN; + + if (USE_IRDA(sport)) { + temp |= UCR1_IREN; + temp &= ~(UCR1_RTSDEN); + } + writel(temp, sport->port.membase + UCR1); temp = readl(sport->port.membase + UCR2); temp |= (UCR2_RXEN | UCR2_TXEN); writel(temp, sport->port.membase + UCR2); + if (USE_IRDA(sport)) { + /* clear RX-FIFO */ + int i = 64; + while ((--i > 0) && + (readl(sport->port.membase + URXD0) & URXD_CHARRDY)) { + barrier(); + } + } + #if defined CONFIG_ARCH_MX2 || defined CONFIG_ARCH_MX3 temp = readl(sport->port.membase + UCR3); temp |= UCR3_RXDMUXSEL; writel(temp, sport->port.membase + UCR3); #endif + if (USE_IRDA(sport)) { + temp = readl(sport->port.membase + UCR4); + if (sport->irda_inv_rx) + temp |= UCR4_INVR; + else + temp &= ~(UCR4_INVR); + writel(temp | UCR4_DREN, sport->port.membase + UCR4); + + temp = readl(sport->port.membase + UCR3); + if (sport->irda_inv_tx) + temp |= UCR3_INVT; + else + temp &= ~(UCR3_INVT); + writel(temp, sport->port.membase + UCR3); + } + /* * Enable modem status interrupts */ @@ -616,6 +742,16 @@ static int imx_startup(struct uart_port *port) imx_enable_ms(&sport->port); spin_unlock_irqrestore(&sport->port.lock,flags); + if (USE_IRDA(sport)) { + struct imxuart_platform_data *pdata; + pdata = sport->port.dev->platform_data; + sport->irda_inv_rx = pdata->irda_inv_rx; + sport->irda_inv_tx = pdata->irda_inv_tx; + sport->trcv_delay = pdata->transceiver_delay; + if (pdata->irda_enable) + pdata->irda_enable(1); + } + return 0; error_out3: @@ -633,6 +769,17 @@ static void imx_shutdown(struct uart_port *port) struct imx_port *sport = (struct imx_port *)port; unsigned long temp; + temp = readl(sport->port.membase + UCR2); + temp &= ~(UCR2_TXEN); + writel(temp, sport->port.membase + UCR2); + + if (USE_IRDA(sport)) { + struct imxuart_platform_data *pdata; + pdata = sport->port.dev->platform_data; + if (pdata->irda_enable) + pdata->irda_enable(0); + } + /* * Stop our timer. */ @@ -642,7 +789,8 @@ static void imx_shutdown(struct uart_port *port) * Free the interrupts */ if (sport->txirq > 0) { - free_irq(sport->rtsirq, sport); + if (!USE_IRDA(sport)) + free_irq(sport->rtsirq, sport); free_irq(sport->txirq, sport); free_irq(sport->rxirq, sport); } else @@ -654,6 +802,9 @@ static void imx_shutdown(struct uart_port *port) temp = readl(sport->port.membase + UCR1); temp &= ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN); + if (USE_IRDA(sport)) + temp &= ~(UCR1_IREN); + writel(temp, sport->port.membase + UCR1); } @@ -665,7 +816,9 @@ imx_set_termios(struct uart_port *port, struct ktermios *termios, unsigned long flags; unsigned int ucr2, old_ucr1, old_txrxen, baud, quot; unsigned int old_csize = old ? old->c_cflag & CSIZE : CS8; - unsigned int div, num, denom, ufcr; + unsigned int div, ufcr; + unsigned long num, denom; + uint64_t tdiv64; /* * If we don't support modem control lines, don't allow @@ -761,38 +914,39 @@ imx_set_termios(struct uart_port *port, struct ktermios *termios, sport->port.membase + UCR2); old_txrxen &= (UCR2_TXEN | UCR2_RXEN); - div = sport->port.uartclk / (baud * 16); - if (div > 7) - div = 7; - if (!div) + if (USE_IRDA(sport)) { + /* + * use maximum available submodule frequency to + * avoid missing short pulses due to low sampling rate + */ div = 1; - - num = baud; - denom = port->uartclk / div / 16; - - /* shift num and denom right until they fit into 16 bits */ - while (num > 0x10000 || denom > 0x10000) { - num >>= 1; - denom >>= 1; + } else { + div = sport->port.uartclk / (baud * 16); + if (div > 7) + div = 7; + if (!div) + div = 1; } - if (num > 0) - num -= 1; - if (denom > 0) - denom -= 1; - writel(num, sport->port.membase + UBIR); - writel(denom, sport->port.membase + UBMR); + rational_best_approximation(16 * div * baud, sport->port.uartclk, + 1 << 16, 1 << 16, &num, &denom); - if (div == 7) - div = 6; /* 6 in RFDIV means divide by 7 */ - else - div = 6 - div; + tdiv64 = sport->port.uartclk; + tdiv64 *= num; + do_div(tdiv64, denom * 16 * div); + tty_encode_baud_rate(sport->port.info->port.tty, + (speed_t)tdiv64, (speed_t)tdiv64); + + num -= 1; + denom -= 1; ufcr = readl(sport->port.membase + UFCR); - ufcr = (ufcr & (~UFCR_RFDIV)) | - (div << 7); + ufcr = (ufcr & (~UFCR_RFDIV)) | UFCR_RFDIV_REG(div); writel(ufcr, sport->port.membase + UFCR); + writel(num, sport->port.membase + UBIR); + writel(denom, sport->port.membase + UBMR); + #ifdef ONEMS writel(sport->port.uartclk / div / 1000, sport->port.membase + ONEMS); #endif @@ -1031,6 +1185,8 @@ imx_console_setup(struct console *co, char *options) if (co->index == -1 || co->index >= ARRAY_SIZE(imx_ports)) co->index = 0; sport = imx_ports[co->index]; + if(sport == NULL) + return -ENODEV; if (options) uart_parse_options(options, &baud, &parity, &bits, &flow); @@ -1070,22 +1226,22 @@ static struct uart_driver imx_reg = { static int serial_imx_suspend(struct platform_device *dev, pm_message_t state) { - struct imx_port *sport = platform_get_drvdata(dev); + struct imx_port *sport = platform_get_drvdata(dev); - if (sport) - uart_suspend_port(&imx_reg, &sport->port); + if (sport) + uart_suspend_port(&imx_reg, &sport->port); - return 0; + return 0; } static int serial_imx_resume(struct platform_device *dev) { - struct imx_port *sport = platform_get_drvdata(dev); + struct imx_port *sport = platform_get_drvdata(dev); - if (sport) - uart_resume_port(&imx_reg, &sport->port); + if (sport) + uart_resume_port(&imx_reg, &sport->port); - return 0; + return 0; } static int serial_imx_probe(struct platform_device *pdev) @@ -1141,19 +1297,29 @@ static int serial_imx_probe(struct platform_device *pdev) imx_ports[pdev->id] = sport; pdata = pdev->dev.platform_data; - if(pdata && (pdata->flags & IMXUART_HAVE_RTSCTS)) + if (pdata && (pdata->flags & IMXUART_HAVE_RTSCTS)) sport->have_rtscts = 1; +#ifdef CONFIG_IRDA + if (pdata && (pdata->flags & IMXUART_IRDA)) + sport->use_irda = 1; +#endif + if (pdata->init) { ret = pdata->init(pdev); if (ret) goto clkput; } - uart_add_one_port(&imx_reg, &sport->port); + ret = uart_add_one_port(&imx_reg, &sport->port); + if (ret) + goto deinit; platform_set_drvdata(pdev, &sport->port); return 0; +deinit: + if (pdata->exit) + pdata->exit(pdev); clkput: clk_put(sport->clk); clk_disable(sport->clk); @@ -1191,13 +1357,13 @@ static int serial_imx_remove(struct platform_device *pdev) } static struct platform_driver serial_imx_driver = { - .probe = serial_imx_probe, - .remove = serial_imx_remove, + .probe = serial_imx_probe, + .remove = serial_imx_remove, .suspend = serial_imx_suspend, .resume = serial_imx_resume, .driver = { - .name = "imx-uart", + .name = "imx-uart", .owner = THIS_MODULE, }, }; diff --git a/drivers/serial/jsm/jsm.h b/drivers/serial/jsm/jsm.h index c0a3e2734e2..4e5f3bde046 100644 --- a/drivers/serial/jsm/jsm.h +++ b/drivers/serial/jsm/jsm.h @@ -61,6 +61,7 @@ enum { if ((DBG_##nlevel & jsm_debug)) \ dev_printk(KERN_##klevel, pdev->dev, fmt, ## args) +#define MAXLINES 256 #define MAXPORTS 8 #define MAX_STOPS_SENT 5 diff --git a/drivers/serial/jsm/jsm_tty.c b/drivers/serial/jsm/jsm_tty.c index 31496dc0a0d..107ce2e187b 100644 --- a/drivers/serial/jsm/jsm_tty.c +++ b/drivers/serial/jsm/jsm_tty.c @@ -33,6 +33,8 @@ #include "jsm.h" +static DECLARE_BITMAP(linemap, MAXLINES); + static void jsm_carrier(struct jsm_channel *ch); static inline int jsm_get_mstat(struct jsm_channel *ch) @@ -433,6 +435,7 @@ int __devinit jsm_tty_init(struct jsm_board *brd) int __devinit jsm_uart_port_init(struct jsm_board *brd) { int i; + unsigned int line; struct jsm_channel *ch; if (!brd) @@ -459,9 +462,15 @@ int __devinit jsm_uart_port_init(struct jsm_board *brd) brd->channels[i]->uart_port.membase = brd->re_map_membase; brd->channels[i]->uart_port.fifosize = 16; brd->channels[i]->uart_port.ops = &jsm_ops; - brd->channels[i]->uart_port.line = brd->channels[i]->ch_portnum + brd->boardnum * 2; + line = find_first_zero_bit(linemap, MAXLINES); + if (line >= MAXLINES) { + printk(KERN_INFO "jsm: linemap is full, added device failed\n"); + continue; + } else + set_bit((int)line, linemap); + brd->channels[i]->uart_port.line = line; if (uart_add_one_port (&jsm_uart_driver, &brd->channels[i]->uart_port)) - printk(KERN_INFO "Added device failed\n"); + printk(KERN_INFO "jsm: add device failed\n"); else printk(KERN_INFO "Added device \n"); } @@ -494,6 +503,7 @@ int jsm_remove_uart_port(struct jsm_board *brd) ch = brd->channels[i]; + clear_bit((int)(ch->uart_port.line), linemap); uart_remove_one_port(&jsm_uart_driver, &brd->channels[i]->uart_port); } diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c index dbf5357a77b..a4cf1079b31 100644 --- a/drivers/serial/sh-sci.c +++ b/drivers/serial/sh-sci.c @@ -47,12 +47,17 @@ #include <linux/clk.h> #include <linux/ctype.h> #include <linux/err.h> +#include <linux/list.h> #ifdef CONFIG_SUPERH #include <asm/clock.h> #include <asm/sh_bios.h> #endif +#ifdef CONFIG_H8300 +#include <asm/gpio.h> +#endif + #include "sh-sci.h" struct sci_port { @@ -75,14 +80,22 @@ struct sci_port { int break_flag; #ifdef CONFIG_HAVE_CLK - /* Port clock */ - struct clk *clk; + /* Interface clock */ + struct clk *iclk; + /* Data clock */ + struct clk *dclk; #endif + struct list_head node; }; -#ifdef CONFIG_SERIAL_SH_SCI_CONSOLE -static struct sci_port *serial_console_port; +struct sh_sci_priv { + spinlock_t lock; + struct list_head ports; + +#ifdef CONFIG_HAVE_CLK + struct notifier_block clk_nb; #endif +}; /* Function prototypes */ static void sci_stop_tx(struct uart_port *port); @@ -138,9 +151,8 @@ static void sci_poll_put_char(struct uart_port *port, unsigned char c) status = sci_in(port, SCxSR); } while (!(status & SCxSR_TDxE(port))); - sci_in(port, SCxSR); /* Dummy read */ - sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port) & ~SCxSR_TEND(port)); sci_out(port, SCxTDR, c); + sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port) & ~SCxSR_TEND(port)); } #endif /* CONFIG_CONSOLE_POLL || CONFIG_SERIAL_SH_SCI_CONSOLE */ @@ -159,12 +171,12 @@ static void h8300_sci_config(struct uart_port *port, unsigned int ctrl) *mstpcrl &= ~mask; } -static inline void h8300_sci_enable(struct uart_port *port) +static void h8300_sci_enable(struct uart_port *port) { h8300_sci_config(port, sci_enable); } -static inline void h8300_sci_disable(struct uart_port *port) +static void h8300_sci_disable(struct uart_port *port) { h8300_sci_config(port, sci_disable); } @@ -611,7 +623,7 @@ static inline int sci_handle_breaks(struct uart_port *port) int copied = 0; unsigned short status = sci_in(port, SCxSR); struct tty_struct *tty = port->info->port.tty; - struct sci_port *s = &sci_ports[port->line]; + struct sci_port *s = to_sci_port(port); if (uart_handle_break(port)) return 0; @@ -726,19 +738,43 @@ static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr) static int sci_notifier(struct notifier_block *self, unsigned long phase, void *p) { - int i; + struct sh_sci_priv *priv = container_of(self, + struct sh_sci_priv, clk_nb); + struct sci_port *sci_port; + unsigned long flags; if ((phase == CPUFREQ_POSTCHANGE) || - (phase == CPUFREQ_RESUMECHANGE)) - for (i = 0; i < SCI_NPORTS; i++) { - struct sci_port *s = &sci_ports[i]; - s->port.uartclk = clk_get_rate(s->clk); - } + (phase == CPUFREQ_RESUMECHANGE)) { + spin_lock_irqsave(&priv->lock, flags); + list_for_each_entry(sci_port, &priv->ports, node) + sci_port->port.uartclk = clk_get_rate(sci_port->dclk); + + spin_unlock_irqrestore(&priv->lock, flags); + } return NOTIFY_OK; } -static struct notifier_block sci_nb = { &sci_notifier, NULL, 0 }; +static void sci_clk_enable(struct uart_port *port) +{ + struct sci_port *sci_port = to_sci_port(port); + + clk_enable(sci_port->dclk); + sci_port->port.uartclk = clk_get_rate(sci_port->dclk); + + if (sci_port->iclk) + clk_enable(sci_port->iclk); +} + +static void sci_clk_disable(struct uart_port *port) +{ + struct sci_port *sci_port = to_sci_port(port); + + if (sci_port->iclk) + clk_disable(sci_port->iclk); + + clk_disable(sci_port->dclk); +} #endif static int sci_request_irq(struct sci_port *port) @@ -865,15 +901,11 @@ static void sci_break_ctl(struct uart_port *port, int break_state) static int sci_startup(struct uart_port *port) { - struct sci_port *s = &sci_ports[port->line]; + struct sci_port *s = to_sci_port(port); if (s->enable) s->enable(port); -#ifdef CONFIG_HAVE_CLK - s->clk = clk_get(NULL, "module_clk"); -#endif - sci_request_irq(s); sci_start_tx(port); sci_start_rx(port, 1); @@ -883,7 +915,7 @@ static int sci_startup(struct uart_port *port) static void sci_shutdown(struct uart_port *port) { - struct sci_port *s = &sci_ports[port->line]; + struct sci_port *s = to_sci_port(port); sci_stop_rx(port); sci_stop_tx(port); @@ -891,11 +923,6 @@ static void sci_shutdown(struct uart_port *port) if (s->disable) s->disable(port); - -#ifdef CONFIG_HAVE_CLK - clk_put(s->clk); - s->clk = NULL; -#endif } static void sci_set_termios(struct uart_port *port, struct ktermios *termios, @@ -980,25 +1007,31 @@ static int sci_request_port(struct uart_port *port) static void sci_config_port(struct uart_port *port, int flags) { - struct sci_port *s = &sci_ports[port->line]; + struct sci_port *s = to_sci_port(port); port->type = s->type; - if (port->flags & UPF_IOREMAP && !port->membase) { -#if defined(CONFIG_SUPERH64) - port->mapbase = onchip_remap(SCIF_ADDR_SH5, 1024, "SCIF"); - port->membase = (void __iomem *)port->mapbase; -#else + if (port->membase) + return; + + if (port->flags & UPF_IOREMAP) { port->membase = ioremap_nocache(port->mapbase, 0x40); -#endif - dev_err(port->dev, "can't remap port#%d\n", port->line); + if (IS_ERR(port->membase)) + dev_err(port->dev, "can't remap port#%d\n", port->line); + } else { + /* + * For the simple (and majority of) cases where we don't + * need to do any remapping, just cast the cookie + * directly. + */ + port->membase = (void __iomem *)port->mapbase; } } static int sci_verify_port(struct uart_port *port, struct serial_struct *ser) { - struct sci_port *s = &sci_ports[port->line]; + struct sci_port *s = to_sci_port(port); if (ser->irq != s->irqs[SCIx_TXI_IRQ] || ser->irq > nr_irqs) return -EINVAL; @@ -1032,63 +1065,60 @@ static struct uart_ops sci_uart_ops = { #endif }; -static void __init sci_init_ports(void) +static void __devinit sci_init_single(struct platform_device *dev, + struct sci_port *sci_port, + unsigned int index, + struct plat_sci_port *p) { - static int first = 1; - int i; - - if (!first) - return; - - first = 0; - - for (i = 0; i < SCI_NPORTS; i++) { - sci_ports[i].port.ops = &sci_uart_ops; - sci_ports[i].port.iotype = UPIO_MEM; - sci_ports[i].port.line = i; - sci_ports[i].port.fifosize = 1; + sci_port->port.ops = &sci_uart_ops; + sci_port->port.iotype = UPIO_MEM; + sci_port->port.line = index; + sci_port->port.fifosize = 1; #if defined(__H8300H__) || defined(__H8300S__) #ifdef __H8300S__ - sci_ports[i].enable = h8300_sci_enable; - sci_ports[i].disable = h8300_sci_disable; + sci_port->enable = h8300_sci_enable; + sci_port->disable = h8300_sci_disable; #endif - sci_ports[i].port.uartclk = CONFIG_CPU_CLOCK; + sci_port->port.uartclk = CONFIG_CPU_CLOCK; #elif defined(CONFIG_HAVE_CLK) - /* - * XXX: We should use a proper SCI/SCIF clock - */ - { - struct clk *clk = clk_get(NULL, "module_clk"); - sci_ports[i].port.uartclk = clk_get_rate(clk); - clk_put(clk); - } + sci_port->iclk = p->clk ? clk_get(&dev->dev, p->clk) : NULL; + sci_port->dclk = clk_get(&dev->dev, "peripheral_clk"); + sci_port->enable = sci_clk_enable; + sci_port->disable = sci_clk_disable; #else #error "Need a valid uartclk" #endif - sci_ports[i].break_timer.data = (unsigned long)&sci_ports[i]; - sci_ports[i].break_timer.function = sci_break_timer; + sci_port->break_timer.data = (unsigned long)sci_port; + sci_port->break_timer.function = sci_break_timer; + init_timer(&sci_port->break_timer); - init_timer(&sci_ports[i].break_timer); - } -} - -int __init early_sci_setup(struct uart_port *port) -{ - if (unlikely(port->line > SCI_NPORTS)) - return -ENODEV; + sci_port->port.mapbase = p->mapbase; + sci_port->port.membase = p->membase; - sci_init_ports(); + sci_port->port.irq = p->irqs[SCIx_TXI_IRQ]; + sci_port->port.flags = p->flags; + sci_port->port.dev = &dev->dev; + sci_port->type = sci_port->port.type = p->type; - sci_ports[port->line].port.membase = port->membase; - sci_ports[port->line].port.mapbase = port->mapbase; - sci_ports[port->line].port.type = port->type; + memcpy(&sci_port->irqs, &p->irqs, sizeof(p->irqs)); - return 0; } #ifdef CONFIG_SERIAL_SH_SCI_CONSOLE +static struct tty_driver *serial_console_device(struct console *co, int *index) +{ + struct uart_driver *p = &sci_uart_driver; + *index = co->index; + return p->tty_driver; +} + +static void serial_console_putchar(struct uart_port *port, int ch) +{ + sci_poll_put_char(port, ch); +} + /* * Print a string to the serial port trying not to disturb * any possible real use of the port... @@ -1096,25 +1126,27 @@ int __init early_sci_setup(struct uart_port *port) static void serial_console_write(struct console *co, const char *s, unsigned count) { - struct uart_port *port = &serial_console_port->port; + struct uart_port *port = co->data; + struct sci_port *sci_port = to_sci_port(port); unsigned short bits; - int i; - for (i = 0; i < count; i++) { - if (*s == 10) - sci_poll_put_char(port, '\r'); + if (sci_port->enable) + sci_port->enable(port); - sci_poll_put_char(port, *s++); - } + uart_console_write(port, s, count, serial_console_putchar); /* wait until fifo is empty and last bit has been transmitted */ bits = SCxSR_TDxE(port) | SCxSR_TEND(port); while ((sci_in(port, SCxSR) & bits) != bits) cpu_relax(); + + if (sci_port->disable); + sci_port->disable(port); } static int __init serial_console_setup(struct console *co, char *options) { + struct sci_port *sci_port; struct uart_port *port; int baud = 115200; int bits = 8; @@ -1130,8 +1162,9 @@ static int __init serial_console_setup(struct console *co, char *options) if (co->index >= SCI_NPORTS) co->index = 0; - serial_console_port = &sci_ports[co->index]; - port = &serial_console_port->port; + sci_port = &sci_ports[co->index]; + port = &sci_port->port; + co->data = port; /* * Also need to check port->type, we don't actually have any @@ -1141,21 +1174,11 @@ static int __init serial_console_setup(struct console *co, char *options) */ if (!port->type) return -ENODEV; - if (!port->membase || !port->mapbase) - return -ENODEV; - - port->type = serial_console_port->type; - -#ifdef CONFIG_HAVE_CLK - if (!serial_console_port->clk) - serial_console_port->clk = clk_get(NULL, "module_clk"); -#endif - if (port->flags & UPF_IOREMAP) - sci_config_port(port, 0); + sci_config_port(port, 0); - if (serial_console_port->enable) - serial_console_port->enable(port); + if (sci_port->enable) + sci_port->enable(port); if (options) uart_parse_options(options, &baud, &parity, &bits, &flow); @@ -1166,22 +1189,21 @@ static int __init serial_console_setup(struct console *co, char *options) if (ret == 0) sci_stop_rx(port); #endif + /* TODO: disable clock */ return ret; } static struct console serial_console = { .name = "ttySC", - .device = uart_console_device, + .device = serial_console_device, .write = serial_console_write, .setup = serial_console_setup, .flags = CON_PRINTBUFFER, .index = -1, - .data = &sci_uart_driver, }; static int __init sci_console_init(void) { - sci_init_ports(); register_console(&serial_console); return 0; } @@ -1207,6 +1229,61 @@ static struct uart_driver sci_uart_driver = { .cons = SCI_CONSOLE, }; + +static int sci_remove(struct platform_device *dev) +{ + struct sh_sci_priv *priv = platform_get_drvdata(dev); + struct sci_port *p; + unsigned long flags; + +#ifdef CONFIG_HAVE_CLK + cpufreq_unregister_notifier(&priv->clk_nb, CPUFREQ_TRANSITION_NOTIFIER); +#endif + + spin_lock_irqsave(&priv->lock, flags); + list_for_each_entry(p, &priv->ports, node) + uart_remove_one_port(&sci_uart_driver, &p->port); + + spin_unlock_irqrestore(&priv->lock, flags); + + kfree(priv); + return 0; +} + +static int __devinit sci_probe_single(struct platform_device *dev, + unsigned int index, + struct plat_sci_port *p, + struct sci_port *sciport) +{ + struct sh_sci_priv *priv = platform_get_drvdata(dev); + unsigned long flags; + int ret; + + /* Sanity check */ + if (unlikely(index >= SCI_NPORTS)) { + dev_notice(&dev->dev, "Attempting to register port " + "%d when only %d are available.\n", + index+1, SCI_NPORTS); + dev_notice(&dev->dev, "Consider bumping " + "CONFIG_SERIAL_SH_SCI_NR_UARTS!\n"); + return 0; + } + + sci_init_single(dev, sciport, index, p); + + ret = uart_add_one_port(&sci_uart_driver, &sciport->port); + if (ret) + return ret; + + INIT_LIST_HEAD(&sciport->node); + + spin_lock_irqsave(&priv->lock, flags); + list_add(&sciport->node, &priv->ports); + spin_unlock_irqrestore(&priv->lock, flags); + + return 0; +} + /* * Register a set of serial devices attached to a platform device. The * list is terminated with a zero flags entry, which means we expect @@ -1216,57 +1293,34 @@ static struct uart_driver sci_uart_driver = { static int __devinit sci_probe(struct platform_device *dev) { struct plat_sci_port *p = dev->dev.platform_data; + struct sh_sci_priv *priv; int i, ret = -EINVAL; - for (i = 0; p && p->flags != 0; p++, i++) { - struct sci_port *sciport = &sci_ports[i]; + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; - /* Sanity check */ - if (unlikely(i == SCI_NPORTS)) { - dev_notice(&dev->dev, "Attempting to register port " - "%d when only %d are available.\n", - i+1, SCI_NPORTS); - dev_notice(&dev->dev, "Consider bumping " - "CONFIG_SERIAL_SH_SCI_NR_UARTS!\n"); - break; - } + INIT_LIST_HEAD(&priv->ports); + spin_lock_init(&priv->lock); + platform_set_drvdata(dev, priv); - sciport->port.mapbase = p->mapbase; +#ifdef CONFIG_HAVE_CLK + priv->clk_nb.notifier_call = sci_notifier; + cpufreq_register_notifier(&priv->clk_nb, CPUFREQ_TRANSITION_NOTIFIER); +#endif - if (p->mapbase && !p->membase) { - if (p->flags & UPF_IOREMAP) { - p->membase = ioremap_nocache(p->mapbase, 0x40); - if (IS_ERR(p->membase)) { - ret = PTR_ERR(p->membase); - goto err_unreg; - } - } else { - /* - * For the simple (and majority of) cases - * where we don't need to do any remapping, - * just cast the cookie directly. - */ - p->membase = (void __iomem *)p->mapbase; - } + if (dev->id != -1) { + ret = sci_probe_single(dev, dev->id, p, &sci_ports[dev->id]); + if (ret) + goto err_unreg; + } else { + for (i = 0; p && p->flags != 0; p++, i++) { + ret = sci_probe_single(dev, i, p, &sci_ports[i]); + if (ret) + goto err_unreg; } - - sciport->port.membase = p->membase; - - sciport->port.irq = p->irqs[SCIx_TXI_IRQ]; - sciport->port.flags = p->flags; - sciport->port.dev = &dev->dev; - - sciport->type = sciport->port.type = p->type; - - memcpy(&sciport->irqs, &p->irqs, sizeof(p->irqs)); - - uart_add_one_port(&sci_uart_driver, &sciport->port); } -#ifdef CONFIG_HAVE_CLK - cpufreq_register_notifier(&sci_nb, CPUFREQ_TRANSITION_NOTIFIER); -#endif - #ifdef CONFIG_SH_STANDARD_BIOS sh_bios_gdb_detach(); #endif @@ -1274,50 +1328,36 @@ static int __devinit sci_probe(struct platform_device *dev) return 0; err_unreg: - for (i = i - 1; i >= 0; i--) - uart_remove_one_port(&sci_uart_driver, &sci_ports[i].port); - + sci_remove(dev); return ret; } -static int __devexit sci_remove(struct platform_device *dev) -{ - int i; - -#ifdef CONFIG_HAVE_CLK - cpufreq_unregister_notifier(&sci_nb, CPUFREQ_TRANSITION_NOTIFIER); -#endif - - for (i = 0; i < SCI_NPORTS; i++) - uart_remove_one_port(&sci_uart_driver, &sci_ports[i].port); - - return 0; -} - static int sci_suspend(struct platform_device *dev, pm_message_t state) { - int i; + struct sh_sci_priv *priv = platform_get_drvdata(dev); + struct sci_port *p; + unsigned long flags; - for (i = 0; i < SCI_NPORTS; i++) { - struct sci_port *p = &sci_ports[i]; + spin_lock_irqsave(&priv->lock, flags); + list_for_each_entry(p, &priv->ports, node) + uart_suspend_port(&sci_uart_driver, &p->port); - if (p->type != PORT_UNKNOWN && p->port.dev == &dev->dev) - uart_suspend_port(&sci_uart_driver, &p->port); - } + spin_unlock_irqrestore(&priv->lock, flags); return 0; } static int sci_resume(struct platform_device *dev) { - int i; + struct sh_sci_priv *priv = platform_get_drvdata(dev); + struct sci_port *p; + unsigned long flags; - for (i = 0; i < SCI_NPORTS; i++) { - struct sci_port *p = &sci_ports[i]; + spin_lock_irqsave(&priv->lock, flags); + list_for_each_entry(p, &priv->ports, node) + uart_resume_port(&sci_uart_driver, &p->port); - if (p->type != PORT_UNKNOWN && p->port.dev == &dev->dev) - uart_resume_port(&sci_uart_driver, &p->port); - } + spin_unlock_irqrestore(&priv->lock, flags); return 0; } @@ -1339,8 +1379,6 @@ static int __init sci_init(void) printk(banner); - sci_init_ports(); - ret = uart_register_driver(&sci_uart_driver); if (likely(ret == 0)) { ret = platform_driver_register(&sci_driver); diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h index d0aa82d7fce..38072c15b84 100644 --- a/drivers/serial/sh-sci.h +++ b/drivers/serial/sh-sci.h @@ -91,6 +91,9 @@ # define SCSPTR5 0xa4050128 # define SCIF_ORER 0x0001 /* overrun error bit */ # define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ +#elif defined(CONFIG_CPU_SUBTYPE_SH7724) +# define SCIF_ORER 0x0001 /* overrun error bit */ +# define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ #elif defined(CONFIG_CPU_SUBTYPE_SH4_202) # define SCSPTR2 0xffe80020 /* 16 bit SCIF */ # define SCIF_ORER 0x0001 /* overrun error bit */ @@ -314,7 +317,18 @@ } \ } -#define CPU_SCIF_FNS(name, scif_offset, scif_size) \ +#ifdef CONFIG_H8300 +/* h8300 don't have SCIF */ +#define CPU_SCIF_FNS(name) \ + static inline unsigned int sci_##name##_in(struct uart_port *port) \ + { \ + return 0; \ + } \ + static inline void sci_##name##_out(struct uart_port *port, unsigned int value) \ + { \ + } +#else +#define CPU_SCIF_FNS(name, scif_offset, scif_size) \ static inline unsigned int sci_##name##_in(struct uart_port *port) \ { \ SCI_IN(scif_size, scif_offset); \ @@ -323,6 +337,7 @@ { \ SCI_OUT(scif_size, scif_offset, value); \ } +#endif #define CPU_SCI_FNS(name, sci_offset, sci_size) \ static inline unsigned int sci_##name##_in(struct uart_port* port) \ @@ -360,8 +375,10 @@ sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \ h8_sci_offset, h8_sci_size) \ CPU_SCI_FNS(name, h8_sci_offset, h8_sci_size) -#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) -#elif defined(CONFIG_CPU_SUBTYPE_SH7723) +#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \ + CPU_SCIF_FNS(name) +#elif defined(CONFIG_CPU_SUBTYPE_SH7723) ||\ + defined(CONFIG_CPU_SUBTYPE_SH7724) #define SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size, sh4_scif_offset, sh4_scif_size) \ CPU_SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size, sh4_scif_offset, sh4_scif_size) #define SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) \ @@ -390,7 +407,8 @@ SCIF_FNS(SCFDR, 0x1c, 16) SCIF_FNS(SCxTDR, 0x20, 8) SCIF_FNS(SCxRDR, 0x24, 8) SCIF_FNS(SCLSR, 0x24, 16) -#elif defined(CONFIG_CPU_SUBTYPE_SH7723) +#elif defined(CONFIG_CPU_SUBTYPE_SH7723) ||\ + defined(CONFIG_CPU_SUBTYPE_SH7724) SCIx_FNS(SCSMR, 0x00, 16, 0x00, 16) SCIx_FNS(SCBRR, 0x04, 8, 0x04, 8) SCIx_FNS(SCSCR, 0x08, 16, 0x08, 16) @@ -604,10 +622,21 @@ static inline int sci_rxd_in(struct uart_port *port) return ctrl_inb(SCSPTR5) & 0x0008 ? 1 : 0; /* SCIF5 */ return 1; } +#elif defined(CONFIG_CPU_SUBTYPE_SH7724) +# define SCFSR 0x0010 +# define SCASSR 0x0014 +static inline int sci_rxd_in(struct uart_port *port) +{ + if (port->type == PORT_SCIF) + return ctrl_inw((port->mapbase + SCFSR)) & SCIF_BRK ? 1 : 0; + if (port->type == PORT_SCIFA) + return ctrl_inw((port->mapbase + SCASSR)) & SCIF_BRK ? 1 : 0; + return 1; +} #elif defined(CONFIG_CPU_SUBTYPE_SH5_101) || defined(CONFIG_CPU_SUBTYPE_SH5_103) static inline int sci_rxd_in(struct uart_port *port) { - return sci_in(port, SCSPTR2)&0x0001 ? 1 : 0; /* SCIF */ + return sci_in(port, SCSPTR)&0x0001 ? 1 : 0; /* SCIF */ } #elif defined(__H8300H__) || defined(__H8300S__) static inline int sci_rxd_in(struct uart_port *port) @@ -757,7 +786,8 @@ static inline int sci_rxd_in(struct uart_port *port) defined(CONFIG_CPU_SUBTYPE_SH7720) || \ defined(CONFIG_CPU_SUBTYPE_SH7721) #define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1) -#elif defined(CONFIG_CPU_SUBTYPE_SH7723) +#elif defined(CONFIG_CPU_SUBTYPE_SH7723) ||\ + defined(CONFIG_CPU_SUBTYPE_SH7724) static inline int scbrr_calc(struct uart_port *port, int bps, int clk) { if (port->type == PORT_SCIF) diff --git a/drivers/serial/timbuart.c b/drivers/serial/timbuart.c new file mode 100644 index 00000000000..ac9e5d5f742 --- /dev/null +++ b/drivers/serial/timbuart.c @@ -0,0 +1,526 @@ +/* + * timbuart.c timberdale FPGA UART driver + * Copyright (c) 2009 Intel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +/* Supports: + * Timberdale FPGA UART + */ + +#include <linux/pci.h> +#include <linux/interrupt.h> +#include <linux/serial_core.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/ioport.h> + +#include "timbuart.h" + +struct timbuart_port { + struct uart_port port; + struct tasklet_struct tasklet; + int usedma; + u8 last_ier; + struct platform_device *dev; +}; + +static int baudrates[] = {9600, 19200, 38400, 57600, 115200, 230400, 460800, + 921600, 1843200, 3250000}; + +static void timbuart_mctrl_check(struct uart_port *port, u8 isr, u8 *ier); + +static irqreturn_t timbuart_handleinterrupt(int irq, void *devid); + +static void timbuart_stop_rx(struct uart_port *port) +{ + /* spin lock held by upper layer, disable all RX interrupts */ + u8 ier = ioread8(port->membase + TIMBUART_IER) & ~RXFLAGS; + iowrite8(ier, port->membase + TIMBUART_IER); +} + +static void timbuart_stop_tx(struct uart_port *port) +{ + /* spinlock held by upper layer, disable TX interrupt */ + u8 ier = ioread8(port->membase + TIMBUART_IER) & ~TXBAE; + iowrite8(ier, port->membase + TIMBUART_IER); +} + +static void timbuart_start_tx(struct uart_port *port) +{ + struct timbuart_port *uart = + container_of(port, struct timbuart_port, port); + + /* do not transfer anything here -> fire off the tasklet */ + tasklet_schedule(&uart->tasklet); +} + +static void timbuart_flush_buffer(struct uart_port *port) +{ + u8 ctl = ioread8(port->membase + TIMBUART_CTRL) | TIMBUART_CTRL_FLSHTX; + + iowrite8(ctl, port->membase + TIMBUART_CTRL); + iowrite8(TXBF, port->membase + TIMBUART_ISR); +} + +static void timbuart_rx_chars(struct uart_port *port) +{ + struct tty_struct *tty = port->info->port.tty; + + while (ioread8(port->membase + TIMBUART_ISR) & RXDP) { + u8 ch = ioread8(port->membase + TIMBUART_RXFIFO); + port->icount.rx++; + tty_insert_flip_char(tty, ch, TTY_NORMAL); + } + + spin_unlock(&port->lock); + tty_flip_buffer_push(port->info->port.tty); + spin_lock(&port->lock); + + dev_dbg(port->dev, "%s - total read %d bytes\n", + __func__, port->icount.rx); +} + +static void timbuart_tx_chars(struct uart_port *port) +{ + struct circ_buf *xmit = &port->info->xmit; + + while (!(ioread8(port->membase + TIMBUART_ISR) & TXBF) && + !uart_circ_empty(xmit)) { + iowrite8(xmit->buf[xmit->tail], + port->membase + TIMBUART_TXFIFO); + xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); + port->icount.tx++; + } + + dev_dbg(port->dev, + "%s - total written %d bytes, CTL: %x, RTS: %x, baud: %x\n", + __func__, + port->icount.tx, + ioread8(port->membase + TIMBUART_CTRL), + port->mctrl & TIOCM_RTS, + ioread8(port->membase + TIMBUART_BAUDRATE)); +} + +static void timbuart_handle_tx_port(struct uart_port *port, u8 isr, u8 *ier) +{ + struct timbuart_port *uart = + container_of(port, struct timbuart_port, port); + struct circ_buf *xmit = &port->info->xmit; + + if (uart_circ_empty(xmit) || uart_tx_stopped(port)) + return; + + if (port->x_char) + return; + + if (isr & TXFLAGS) { + timbuart_tx_chars(port); + /* clear all TX interrupts */ + iowrite8(TXFLAGS, port->membase + TIMBUART_ISR); + + if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) + uart_write_wakeup(port); + } else + /* Re-enable any tx interrupt */ + *ier |= uart->last_ier & TXFLAGS; + + /* enable interrupts if there are chars in the transmit buffer, + * Or if we delivered some bytes and want the almost empty interrupt + * we wake up the upper layer later when we got the interrupt + * to give it some time to go out... + */ + if (!uart_circ_empty(xmit)) + *ier |= TXBAE; + + dev_dbg(port->dev, "%s - leaving\n", __func__); +} + +void timbuart_handle_rx_port(struct uart_port *port, u8 isr, u8 *ier) +{ + if (isr & RXFLAGS) { + /* Some RX status is set */ + if (isr & RXBF) { + u8 ctl = ioread8(port->membase + TIMBUART_CTRL) | + TIMBUART_CTRL_FLSHRX; + iowrite8(ctl, port->membase + TIMBUART_CTRL); + port->icount.overrun++; + } else if (isr & (RXDP)) + timbuart_rx_chars(port); + + /* ack all RX interrupts */ + iowrite8(RXFLAGS, port->membase + TIMBUART_ISR); + } + + /* always have the RX interrupts enabled */ + *ier |= RXBAF | RXBF | RXTT; + + dev_dbg(port->dev, "%s - leaving\n", __func__); +} + +void timbuart_tasklet(unsigned long arg) +{ + struct timbuart_port *uart = (struct timbuart_port *)arg; + u8 isr, ier = 0; + + spin_lock(&uart->port.lock); + + isr = ioread8(uart->port.membase + TIMBUART_ISR); + dev_dbg(uart->port.dev, "%s ISR: %x\n", __func__, isr); + + if (!uart->usedma) + timbuart_handle_tx_port(&uart->port, isr, &ier); + + timbuart_mctrl_check(&uart->port, isr, &ier); + + if (!uart->usedma) + timbuart_handle_rx_port(&uart->port, isr, &ier); + + iowrite8(ier, uart->port.membase + TIMBUART_IER); + + spin_unlock(&uart->port.lock); + dev_dbg(uart->port.dev, "%s leaving\n", __func__); +} + +static unsigned int timbuart_tx_empty(struct uart_port *port) +{ + u8 isr = ioread8(port->membase + TIMBUART_ISR); + + return (isr & TXBAE) ? TIOCSER_TEMT : 0; +} + +static unsigned int timbuart_get_mctrl(struct uart_port *port) +{ + u8 cts = ioread8(port->membase + TIMBUART_CTRL); + dev_dbg(port->dev, "%s - cts %x\n", __func__, cts); + + if (cts & TIMBUART_CTRL_CTS) + return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR; + else + return TIOCM_DSR | TIOCM_CAR; +} + +static void timbuart_set_mctrl(struct uart_port *port, unsigned int mctrl) +{ + dev_dbg(port->dev, "%s - %x\n", __func__, mctrl); + + if (mctrl & TIOCM_RTS) + iowrite8(TIMBUART_CTRL_RTS, port->membase + TIMBUART_CTRL); + else + iowrite8(TIMBUART_CTRL_RTS, port->membase + TIMBUART_CTRL); +} + +static void timbuart_mctrl_check(struct uart_port *port, u8 isr, u8 *ier) +{ + unsigned int cts; + + if (isr & CTS_DELTA) { + /* ack */ + iowrite8(CTS_DELTA, port->membase + TIMBUART_ISR); + cts = timbuart_get_mctrl(port); + uart_handle_cts_change(port, cts & TIOCM_CTS); + wake_up_interruptible(&port->info->delta_msr_wait); + } + + *ier |= CTS_DELTA; +} + +static void timbuart_enable_ms(struct uart_port *port) +{ + /* N/A */ +} + +static void timbuart_break_ctl(struct uart_port *port, int ctl) +{ + /* N/A */ +} + +static int timbuart_startup(struct uart_port *port) +{ + struct timbuart_port *uart = + container_of(port, struct timbuart_port, port); + + dev_dbg(port->dev, "%s\n", __func__); + + iowrite8(TIMBUART_CTRL_FLSHRX, port->membase + TIMBUART_CTRL); + iowrite8(0xff, port->membase + TIMBUART_ISR); + /* Enable all but TX interrupts */ + iowrite8(RXBAF | RXBF | RXTT | CTS_DELTA, + port->membase + TIMBUART_IER); + + return request_irq(port->irq, timbuart_handleinterrupt, IRQF_SHARED, + "timb-uart", uart); +} + +static void timbuart_shutdown(struct uart_port *port) +{ + struct timbuart_port *uart = + container_of(port, struct timbuart_port, port); + dev_dbg(port->dev, "%s\n", __func__); + free_irq(port->irq, uart); + iowrite8(0, port->membase + TIMBUART_IER); +} + +static int get_bindex(int baud) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(baudrates); i++) + if (baud <= baudrates[i]) + return i; + + return -1; +} + +static void timbuart_set_termios(struct uart_port *port, + struct ktermios *termios, + struct ktermios *old) +{ + unsigned int baud; + short bindex; + unsigned long flags; + + baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk / 16); + bindex = get_bindex(baud); + dev_dbg(port->dev, "%s - bindex %d\n", __func__, bindex); + + if (bindex < 0) + bindex = 0; + baud = baudrates[bindex]; + + /* The serial layer calls into this once with old = NULL when setting + up initially */ + if (old) + tty_termios_copy_hw(termios, old); + tty_termios_encode_baud_rate(termios, baud, baud); + + spin_lock_irqsave(&port->lock, flags); + iowrite8((u8)bindex, port->membase + TIMBUART_BAUDRATE); + uart_update_timeout(port, termios->c_cflag, baud); + spin_unlock_irqrestore(&port->lock, flags); +} + +static const char *timbuart_type(struct uart_port *port) +{ + return port->type == PORT_UNKNOWN ? "timbuart" : NULL; +} + +/* We do not request/release mappings of the registers here, + * currently it's done in the proble function. + */ +static void timbuart_release_port(struct uart_port *port) +{ + struct platform_device *pdev = to_platform_device(port->dev); + int size = + resource_size(platform_get_resource(pdev, IORESOURCE_MEM, 0)); + + if (port->flags & UPF_IOREMAP) { + iounmap(port->membase); + port->membase = NULL; + } + + release_mem_region(port->mapbase, size); +} + +static int timbuart_request_port(struct uart_port *port) +{ + struct platform_device *pdev = to_platform_device(port->dev); + int size = + resource_size(platform_get_resource(pdev, IORESOURCE_MEM, 0)); + + if (!request_mem_region(port->mapbase, size, "timb-uart")) + return -EBUSY; + + if (port->flags & UPF_IOREMAP) { + port->membase = ioremap(port->mapbase, size); + if (port->membase == NULL) { + release_mem_region(port->mapbase, size); + return -ENOMEM; + } + } + + return 0; +} + +static irqreturn_t timbuart_handleinterrupt(int irq, void *devid) +{ + struct timbuart_port *uart = (struct timbuart_port *)devid; + + if (ioread8(uart->port.membase + TIMBUART_IPR)) { + uart->last_ier = ioread8(uart->port.membase + TIMBUART_IER); + + /* disable interrupts, the tasklet enables them again */ + iowrite8(0, uart->port.membase + TIMBUART_IER); + + /* fire off bottom half */ + tasklet_schedule(&uart->tasklet); + + return IRQ_HANDLED; + } else + return IRQ_NONE; +} + +/* + * Configure/autoconfigure the port. + */ +static void timbuart_config_port(struct uart_port *port, int flags) +{ + if (flags & UART_CONFIG_TYPE) { + port->type = PORT_TIMBUART; + timbuart_request_port(port); + } +} + +static int timbuart_verify_port(struct uart_port *port, + struct serial_struct *ser) +{ + /* we don't want the core code to modify any port params */ + return -EINVAL; +} + +static struct uart_ops timbuart_ops = { + .tx_empty = timbuart_tx_empty, + .set_mctrl = timbuart_set_mctrl, + .get_mctrl = timbuart_get_mctrl, + .stop_tx = timbuart_stop_tx, + .start_tx = timbuart_start_tx, + .flush_buffer = timbuart_flush_buffer, + .stop_rx = timbuart_stop_rx, + .enable_ms = timbuart_enable_ms, + .break_ctl = timbuart_break_ctl, + .startup = timbuart_startup, + .shutdown = timbuart_shutdown, + .set_termios = timbuart_set_termios, + .type = timbuart_type, + .release_port = timbuart_release_port, + .request_port = timbuart_request_port, + .config_port = timbuart_config_port, + .verify_port = timbuart_verify_port +}; + +static struct uart_driver timbuart_driver = { + .owner = THIS_MODULE, + .driver_name = "timberdale_uart", + .dev_name = "ttyTU", + .major = TIMBUART_MAJOR, + .minor = TIMBUART_MINOR, + .nr = 1 +}; + +static int timbuart_probe(struct platform_device *dev) +{ + int err; + struct timbuart_port *uart; + struct resource *iomem; + + dev_dbg(&dev->dev, "%s\n", __func__); + + uart = kzalloc(sizeof(*uart), GFP_KERNEL); + if (!uart) { + err = -EINVAL; + goto err_mem; + } + + uart->usedma = 0; + + uart->port.uartclk = 3250000 * 16; + uart->port.fifosize = TIMBUART_FIFO_SIZE; + uart->port.regshift = 2; + uart->port.iotype = UPIO_MEM; + uart->port.ops = &timbuart_ops; + uart->port.irq = 0; + uart->port.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP; + uart->port.line = 0; + uart->port.dev = &dev->dev; + + iomem = platform_get_resource(dev, IORESOURCE_MEM, 0); + if (!iomem) { + err = -ENOMEM; + goto err_register; + } + uart->port.mapbase = iomem->start; + uart->port.membase = NULL; + + uart->port.irq = platform_get_irq(dev, 0); + if (uart->port.irq < 0) { + err = -EINVAL; + goto err_register; + } + + tasklet_init(&uart->tasklet, timbuart_tasklet, (unsigned long)uart); + + err = uart_register_driver(&timbuart_driver); + if (err) + goto err_register; + + err = uart_add_one_port(&timbuart_driver, &uart->port); + if (err) + goto err_add_port; + + platform_set_drvdata(dev, uart); + + return 0; + +err_add_port: + uart_unregister_driver(&timbuart_driver); +err_register: + kfree(uart); +err_mem: + printk(KERN_ERR "timberdale: Failed to register Timberdale UART: %d\n", + err); + + return err; +} + +static int timbuart_remove(struct platform_device *dev) +{ + struct timbuart_port *uart = platform_get_drvdata(dev); + + tasklet_kill(&uart->tasklet); + uart_remove_one_port(&timbuart_driver, &uart->port); + uart_unregister_driver(&timbuart_driver); + kfree(uart); + + return 0; +} + +static struct platform_driver timbuart_platform_driver = { + .driver = { + .name = "timb-uart", + .owner = THIS_MODULE, + }, + .probe = timbuart_probe, + .remove = timbuart_remove, +}; + +/*--------------------------------------------------------------------------*/ + +static int __init timbuart_init(void) +{ + return platform_driver_register(&timbuart_platform_driver); +} + +static void __exit timbuart_exit(void) +{ + platform_driver_unregister(&timbuart_platform_driver); +} + +module_init(timbuart_init); +module_exit(timbuart_exit); + +MODULE_DESCRIPTION("Timberdale UART driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:timb-uart"); + diff --git a/drivers/serial/timbuart.h b/drivers/serial/timbuart.h new file mode 100644 index 00000000000..7e566766bc4 --- /dev/null +++ b/drivers/serial/timbuart.h @@ -0,0 +1,58 @@ +/* + * timbuart.c timberdale FPGA GPIO driver + * Copyright (c) 2009 Intel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +/* Supports: + * Timberdale FPGA UART + */ + +#ifndef _TIMBUART_H +#define _TIMBUART_H + +#define TIMBUART_FIFO_SIZE 2048 + +#define TIMBUART_RXFIFO 0x08 +#define TIMBUART_TXFIFO 0x0c +#define TIMBUART_IER 0x10 +#define TIMBUART_IPR 0x14 +#define TIMBUART_ISR 0x18 +#define TIMBUART_CTRL 0x1c +#define TIMBUART_BAUDRATE 0x20 + +#define TIMBUART_CTRL_RTS 0x01 +#define TIMBUART_CTRL_CTS 0x02 +#define TIMBUART_CTRL_FLSHTX 0x40 +#define TIMBUART_CTRL_FLSHRX 0x80 + +#define TXBF 0x01 +#define TXBAE 0x02 +#define CTS_DELTA 0x04 +#define RXDP 0x08 +#define RXBAF 0x10 +#define RXBF 0x20 +#define RXTT 0x40 +#define RXBNAE 0x80 +#define TXBE 0x100 + +#define RXFLAGS (RXDP | RXBAF | RXBF | RXTT | RXBNAE) +#define TXFLAGS (TXBF | TXBAE) + +#define TIMBUART_MAJOR 204 +#define TIMBUART_MINOR 192 + +#endif /* _TIMBUART_H */ + diff --git a/drivers/sh/intc.c b/drivers/sh/intc.c index 12d13d99b6f..d687a9b93d0 100644 --- a/drivers/sh/intc.c +++ b/drivers/sh/intc.c @@ -24,6 +24,7 @@ #include <linux/sh_intc.h> #include <linux/sysdev.h> #include <linux/list.h> +#include <linux/topology.h> #define _INTC_MK(fn, mode, addr_e, addr_d, width, shift) \ ((shift) | ((width) << 5) | ((fn) << 9) | ((mode) << 13) | \ @@ -770,11 +771,19 @@ void __init register_intc_controller(struct intc_desc *desc) /* register the vectors one by one */ for (i = 0; i < desc->nr_vectors; i++) { struct intc_vect *vect = desc->vectors + i; + unsigned int irq = evt2irq(vect->vect); + struct irq_desc *irq_desc; if (!vect->enum_id) continue; - intc_register_irq(desc, d, vect->enum_id, evt2irq(vect->vect)); + irq_desc = irq_to_desc_alloc_node(irq, numa_node_id()); + if (unlikely(!irq_desc)) { + printk(KERN_INFO "can not get irq_desc for %d\n", irq); + continue; + } + + intc_register_irq(desc, d, vect->enum_id, irq); } } diff --git a/drivers/ssb/embedded.c b/drivers/ssb/embedded.c index 7dc3a6b4139..a0e0d246b59 100644 --- a/drivers/ssb/embedded.c +++ b/drivers/ssb/embedded.c @@ -29,6 +29,7 @@ int ssb_watchdog_timer_set(struct ssb_bus *bus, u32 ticks) } return -ENODEV; } +EXPORT_SYMBOL(ssb_watchdog_timer_set); u32 ssb_gpio_in(struct ssb_bus *bus, u32 mask) { diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 7a1164dd1d3..ddeb6919253 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -16,7 +16,8 @@ * v0.9 - thorough cleaning, URBification, almost a rewrite * v0.10 - some more cleanups * v0.11 - fixed flow control, read error doesn't stop reads - * v0.12 - added TIOCM ioctls, added break handling, made struct acm kmalloced + * v0.12 - added TIOCM ioctls, added break handling, made struct acm + * kmalloced * v0.13 - added termios, added hangup * v0.14 - sized down struct acm * v0.15 - fixed flow control again - characters could be lost @@ -62,7 +63,7 @@ #include <linux/tty_flip.h> #include <linux/module.h> #include <linux/mutex.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <linux/usb.h> #include <linux/usb/cdc.h> #include <asm/byteorder.h> @@ -87,7 +88,10 @@ static struct acm *acm_table[ACM_TTY_MINORS]; static DEFINE_MUTEX(open_mutex); -#define ACM_READY(acm) (acm && acm->dev && acm->used) +#define ACM_READY(acm) (acm && acm->dev && acm->port.count) + +static const struct tty_port_operations acm_port_ops = { +}; #ifdef VERBOSE_DEBUG #define verbose 1 @@ -99,13 +103,15 @@ static DEFINE_MUTEX(open_mutex); * Functions for ACM control messages. */ -static int acm_ctrl_msg(struct acm *acm, int request, int value, void *buf, int len) +static int acm_ctrl_msg(struct acm *acm, int request, int value, + void *buf, int len) { int retval = usb_control_msg(acm->dev, usb_sndctrlpipe(acm->dev, 0), request, USB_RT_ACM, value, acm->control->altsetting[0].desc.bInterfaceNumber, buf, len, 5000); - dbg("acm_control_msg: rq: 0x%02x val: %#x len: %#x result: %d", request, value, len, retval); + dbg("acm_control_msg: rq: 0x%02x val: %#x len: %#x result: %d", + request, value, len, retval); return retval < 0 ? retval : 0; } @@ -150,9 +156,8 @@ static int acm_wb_is_avail(struct acm *acm) n = ACM_NW; spin_lock_irqsave(&acm->write_lock, flags); - for (i = 0; i < ACM_NW; i++) { + for (i = 0; i < ACM_NW; i++) n -= acm->wb[i].use; - } spin_unlock_irqrestore(&acm->write_lock, flags); return n; } @@ -183,7 +188,8 @@ static int acm_start_wb(struct acm *acm, struct acm_wb *wb) wb->urb->transfer_buffer_length = wb->len; wb->urb->dev = acm->dev; - if ((rc = usb_submit_urb(wb->urb, GFP_ATOMIC)) < 0) { + rc = usb_submit_urb(wb->urb, GFP_ATOMIC); + if (rc < 0) { dbg("usb_submit_urb(write bulk) failed: %d", rc); acm_write_done(acm, wb); } @@ -262,6 +268,7 @@ static void acm_ctrl_irq(struct urb *urb) { struct acm *acm = urb->context; struct usb_cdc_notification *dr = urb->transfer_buffer; + struct tty_struct *tty; unsigned char *data; int newctrl; int retval; @@ -287,40 +294,45 @@ static void acm_ctrl_irq(struct urb *urb) data = (unsigned char *)(dr + 1); switch (dr->bNotificationType) { + case USB_CDC_NOTIFY_NETWORK_CONNECTION: + dbg("%s network", dr->wValue ? + "connected to" : "disconnected from"); + break; - case USB_CDC_NOTIFY_NETWORK_CONNECTION: - - dbg("%s network", dr->wValue ? "connected to" : "disconnected from"); - break; - - case USB_CDC_NOTIFY_SERIAL_STATE: - - newctrl = get_unaligned_le16(data); + case USB_CDC_NOTIFY_SERIAL_STATE: + tty = tty_port_tty_get(&acm->port); + newctrl = get_unaligned_le16(data); - if (acm->tty && !acm->clocal && (acm->ctrlin & ~newctrl & ACM_CTRL_DCD)) { + if (tty) { + if (!acm->clocal && + (acm->ctrlin & ~newctrl & ACM_CTRL_DCD)) { dbg("calling hangup"); - tty_hangup(acm->tty); + tty_hangup(tty); } + tty_kref_put(tty); + } - acm->ctrlin = newctrl; - - dbg("input control lines: dcd%c dsr%c break%c ring%c framing%c parity%c overrun%c", - acm->ctrlin & ACM_CTRL_DCD ? '+' : '-', acm->ctrlin & ACM_CTRL_DSR ? '+' : '-', - acm->ctrlin & ACM_CTRL_BRK ? '+' : '-', acm->ctrlin & ACM_CTRL_RI ? '+' : '-', - acm->ctrlin & ACM_CTRL_FRAMING ? '+' : '-', acm->ctrlin & ACM_CTRL_PARITY ? '+' : '-', - acm->ctrlin & ACM_CTRL_OVERRUN ? '+' : '-'); + acm->ctrlin = newctrl; + dbg("input control lines: dcd%c dsr%c break%c ring%c framing%c parity%c overrun%c", + acm->ctrlin & ACM_CTRL_DCD ? '+' : '-', + acm->ctrlin & ACM_CTRL_DSR ? '+' : '-', + acm->ctrlin & ACM_CTRL_BRK ? '+' : '-', + acm->ctrlin & ACM_CTRL_RI ? '+' : '-', + acm->ctrlin & ACM_CTRL_FRAMING ? '+' : '-', + acm->ctrlin & ACM_CTRL_PARITY ? '+' : '-', + acm->ctrlin & ACM_CTRL_OVERRUN ? '+' : '-'); break; - default: - dbg("unknown notification %d received: index %d len %d data0 %d data1 %d", - dr->bNotificationType, dr->wIndex, - dr->wLength, data[0], data[1]); - break; + default: + dbg("unknown notification %d received: index %d len %d data0 %d data1 %d", + dr->bNotificationType, dr->wIndex, + dr->wLength, data[0], data[1]); + break; } exit: usb_mark_last_busy(acm->dev); - retval = usb_submit_urb (urb, GFP_ATOMIC); + retval = usb_submit_urb(urb, GFP_ATOMIC); if (retval) dev_err(&urb->dev->dev, "%s - usb_submit_urb failed with " "result %d", __func__, retval); @@ -371,15 +383,14 @@ static void acm_rx_tasklet(unsigned long _acm) { struct acm *acm = (void *)_acm; struct acm_rb *buf; - struct tty_struct *tty = acm->tty; + struct tty_struct *tty; struct acm_ru *rcv; unsigned long flags; unsigned char throttled; dbg("Entering acm_rx_tasklet"); - if (!ACM_READY(acm)) - { + if (!ACM_READY(acm)) { dbg("acm_rx_tasklet: ACM not ready"); return; } @@ -387,12 +398,13 @@ static void acm_rx_tasklet(unsigned long _acm) spin_lock_irqsave(&acm->throttle_lock, flags); throttled = acm->throttle; spin_unlock_irqrestore(&acm->throttle_lock, flags); - if (throttled) - { + if (throttled) { dbg("acm_rx_tasklet: throttled"); return; } + tty = tty_port_tty_get(&acm->port); + next_buffer: spin_lock_irqsave(&acm->read_lock, flags); if (list_empty(&acm->filled_read_bufs)) { @@ -406,20 +418,22 @@ next_buffer: dbg("acm_rx_tasklet: procesing buf 0x%p, size = %d", buf, buf->size); - tty_buffer_request_room(tty, buf->size); - spin_lock_irqsave(&acm->throttle_lock, flags); - throttled = acm->throttle; - spin_unlock_irqrestore(&acm->throttle_lock, flags); - if (!throttled) - tty_insert_flip_string(tty, buf->base, buf->size); - tty_flip_buffer_push(tty); - - if (throttled) { - dbg("Throttling noticed"); - spin_lock_irqsave(&acm->read_lock, flags); - list_add(&buf->list, &acm->filled_read_bufs); - spin_unlock_irqrestore(&acm->read_lock, flags); - return; + if (tty) { + spin_lock_irqsave(&acm->throttle_lock, flags); + throttled = acm->throttle; + spin_unlock_irqrestore(&acm->throttle_lock, flags); + if (!throttled) { + tty_buffer_request_room(tty, buf->size); + tty_insert_flip_string(tty, buf->base, buf->size); + tty_flip_buffer_push(tty); + } else { + tty_kref_put(tty); + dbg("Throttling noticed"); + spin_lock_irqsave(&acm->read_lock, flags); + list_add(&buf->list, &acm->filled_read_bufs); + spin_unlock_irqrestore(&acm->read_lock, flags); + return; + } } spin_lock_irqsave(&acm->read_lock, flags); @@ -428,6 +442,8 @@ next_buffer: goto next_buffer; urbs: + tty_kref_put(tty); + while (!list_empty(&acm->spare_read_bufs)) { spin_lock_irqsave(&acm->read_lock, flags); if (list_empty(&acm->spare_read_urbs)) { @@ -454,10 +470,11 @@ urbs: rcv->urb->transfer_dma = buf->dma; rcv->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; - /* This shouldn't kill the driver as unsuccessful URBs are returned to the - free-urbs-pool and resubmited ASAP */ + /* This shouldn't kill the driver as unsuccessful URBs are + returned to the free-urbs-pool and resubmited ASAP */ spin_lock_irqsave(&acm->read_lock, flags); - if (acm->susp_count || usb_submit_urb(rcv->urb, GFP_ATOMIC) < 0) { + if (acm->susp_count || + usb_submit_urb(rcv->urb, GFP_ATOMIC) < 0) { list_add(&buf->list, &acm->spare_read_bufs); list_add(&rcv->list, &acm->spare_read_urbs); acm->processing = 0; @@ -499,11 +516,14 @@ static void acm_write_bulk(struct urb *urb) static void acm_softint(struct work_struct *work) { struct acm *acm = container_of(work, struct acm, work); + struct tty_struct *tty; dev_vdbg(&acm->data->dev, "tx work\n"); if (!ACM_READY(acm)) return; - tty_wakeup(acm->tty); + tty = tty_port_tty_get(&acm->port); + tty_wakeup(tty); + tty_kref_put(tty); } static void acm_waker(struct work_struct *waker) @@ -543,8 +563,9 @@ static int acm_tty_open(struct tty_struct *tty, struct file *filp) rv = 0; set_bit(TTY_NO_WRITE_SPLIT, &tty->flags); + tty->driver_data = acm; - acm->tty = tty; + tty_port_tty_set(&acm->port, tty); if (usb_autopm_get_interface(acm->control) < 0) goto early_bail; @@ -552,11 +573,10 @@ static int acm_tty_open(struct tty_struct *tty, struct file *filp) acm->control->needs_remote_wakeup = 1; mutex_lock(&acm->mutex); - if (acm->used++) { + if (acm->port.count++) { usb_autopm_put_interface(acm->control); goto done; - } - + } acm->ctrlurb->dev = acm->dev; if (usb_submit_urb(acm->ctrlurb, GFP_KERNEL)) { @@ -567,22 +587,22 @@ static int acm_tty_open(struct tty_struct *tty, struct file *filp) if (0 > acm_set_control(acm, acm->ctrlout = ACM_CTRL_DTR | ACM_CTRL_RTS) && (acm->ctrl_caps & USB_CDC_CAP_LINE)) goto full_bailout; + usb_autopm_put_interface(acm->control); INIT_LIST_HEAD(&acm->spare_read_urbs); INIT_LIST_HEAD(&acm->spare_read_bufs); INIT_LIST_HEAD(&acm->filled_read_bufs); - for (i = 0; i < acm->rx_buflimit; i++) { + + for (i = 0; i < acm->rx_buflimit; i++) list_add(&(acm->ru[i].list), &acm->spare_read_urbs); - } - for (i = 0; i < acm->rx_buflimit; i++) { + for (i = 0; i < acm->rx_buflimit; i++) list_add(&(acm->rb[i].list), &acm->spare_read_bufs); - } acm->throttle = 0; tasklet_schedule(&acm->urb_task); - + rv = tty_port_block_til_ready(&acm->port, tty, filp); done: mutex_unlock(&acm->mutex); err_out: @@ -593,16 +613,17 @@ full_bailout: usb_kill_urb(acm->ctrlurb); bail_out: usb_autopm_put_interface(acm->control); - acm->used--; + acm->port.count--; mutex_unlock(&acm->mutex); early_bail: mutex_unlock(&open_mutex); + tty_port_tty_set(&acm->port, NULL); return -EIO; } static void acm_tty_unregister(struct acm *acm) { - int i,nr; + int i, nr; nr = acm->rx_buflimit; tty_unregister_device(acm_tty_driver, acm->minor); @@ -619,41 +640,56 @@ static void acm_tty_unregister(struct acm *acm) static int acm_tty_chars_in_buffer(struct tty_struct *tty); +static void acm_port_down(struct acm *acm, int drain) +{ + int i, nr = acm->rx_buflimit; + mutex_lock(&open_mutex); + if (acm->dev) { + usb_autopm_get_interface(acm->control); + acm_set_control(acm, acm->ctrlout = 0); + /* try letting the last writes drain naturally */ + if (drain) { + wait_event_interruptible_timeout(acm->drain_wait, + (ACM_NW == acm_wb_is_avail(acm)) || !acm->dev, + ACM_CLOSE_TIMEOUT * HZ); + } + usb_kill_urb(acm->ctrlurb); + for (i = 0; i < ACM_NW; i++) + usb_kill_urb(acm->wb[i].urb); + for (i = 0; i < nr; i++) + usb_kill_urb(acm->ru[i].urb); + acm->control->needs_remote_wakeup = 0; + usb_autopm_put_interface(acm->control); + } + mutex_unlock(&open_mutex); +} + +static void acm_tty_hangup(struct tty_struct *tty) +{ + struct acm *acm = tty->driver_data; + tty_port_hangup(&acm->port); + acm_port_down(acm, 0); +} + static void acm_tty_close(struct tty_struct *tty, struct file *filp) { struct acm *acm = tty->driver_data; - int i,nr; - if (!acm || !acm->used) + /* Perform the closing process and see if we need to do the hardware + shutdown */ + if (tty_port_close_start(&acm->port, tty, filp) == 0) return; - - nr = acm->rx_buflimit; + acm_port_down(acm, 0); + tty_port_close_end(&acm->port, tty); mutex_lock(&open_mutex); - if (!--acm->used) { - if (acm->dev) { - usb_autopm_get_interface(acm->control); - acm_set_control(acm, acm->ctrlout = 0); - - /* try letting the last writes drain naturally */ - wait_event_interruptible_timeout(acm->drain_wait, - (ACM_NW == acm_wb_is_avail(acm)) - || !acm->dev, - ACM_CLOSE_TIMEOUT * HZ); - - usb_kill_urb(acm->ctrlurb); - for (i = 0; i < ACM_NW; i++) - usb_kill_urb(acm->wb[i].urb); - for (i = 0; i < nr; i++) - usb_kill_urb(acm->ru[i].urb); - acm->control->needs_remote_wakeup = 0; - usb_autopm_put_interface(acm->control); - } else - acm_tty_unregister(acm); - } + tty_port_tty_set(&acm->port, NULL); + if (!acm->dev) + acm_tty_unregister(acm); mutex_unlock(&open_mutex); } -static int acm_tty_write(struct tty_struct *tty, const unsigned char *buf, int count) +static int acm_tty_write(struct tty_struct *tty, + const unsigned char *buf, int count) { struct acm *acm = tty->driver_data; int stat; @@ -669,7 +705,8 @@ static int acm_tty_write(struct tty_struct *tty, const unsigned char *buf, int c return 0; spin_lock_irqsave(&acm->write_lock, flags); - if ((wbn = acm_wb_alloc(acm)) < 0) { + wbn = acm_wb_alloc(acm); + if (wbn < 0) { spin_unlock_irqrestore(&acm->write_lock, flags); return 0; } @@ -681,7 +718,8 @@ static int acm_tty_write(struct tty_struct *tty, const unsigned char *buf, int c wb->len = count; spin_unlock_irqrestore(&acm->write_lock, flags); - if ((stat = acm_write_start(acm, wbn)) < 0) + stat = acm_write_start(acm, wbn); + if (stat < 0) return stat; return count; } @@ -767,8 +805,10 @@ static int acm_tty_tiocmset(struct tty_struct *tty, struct file *file, return -EINVAL; newctrl = acm->ctrlout; - set = (set & TIOCM_DTR ? ACM_CTRL_DTR : 0) | (set & TIOCM_RTS ? ACM_CTRL_RTS : 0); - clear = (clear & TIOCM_DTR ? ACM_CTRL_DTR : 0) | (clear & TIOCM_RTS ? ACM_CTRL_RTS : 0); + set = (set & TIOCM_DTR ? ACM_CTRL_DTR : 0) | + (set & TIOCM_RTS ? ACM_CTRL_RTS : 0); + clear = (clear & TIOCM_DTR ? ACM_CTRL_DTR : 0) | + (clear & TIOCM_RTS ? ACM_CTRL_RTS : 0); newctrl = (newctrl & ~clear) | set; @@ -777,7 +817,8 @@ static int acm_tty_tiocmset(struct tty_struct *tty, struct file *file, return acm_set_control(acm, acm->ctrlout = newctrl); } -static int acm_tty_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) +static int acm_tty_ioctl(struct tty_struct *tty, struct file *file, + unsigned int cmd, unsigned long arg) { struct acm *acm = tty->driver_data; @@ -799,7 +840,8 @@ static const __u8 acm_tty_size[] = { 5, 6, 7, 8 }; -static void acm_tty_set_termios(struct tty_struct *tty, struct ktermios *termios_old) +static void acm_tty_set_termios(struct tty_struct *tty, + struct ktermios *termios_old) { struct acm *acm = tty->driver_data; struct ktermios *termios = tty->termios; @@ -809,19 +851,23 @@ static void acm_tty_set_termios(struct tty_struct *tty, struct ktermios *termios if (!ACM_READY(acm)) return; + /* FIXME: Needs to support the tty_baud interface */ + /* FIXME: Broken on sparc */ newline.dwDTERate = cpu_to_le32p(acm_tty_speed + (termios->c_cflag & CBAUD & ~CBAUDEX) + (termios->c_cflag & CBAUDEX ? 15 : 0)); newline.bCharFormat = termios->c_cflag & CSTOPB ? 2 : 0; newline.bParityType = termios->c_cflag & PARENB ? - (termios->c_cflag & PARODD ? 1 : 2) + (termios->c_cflag & CMSPAR ? 2 : 0) : 0; + (termios->c_cflag & PARODD ? 1 : 2) + + (termios->c_cflag & CMSPAR ? 2 : 0) : 0; newline.bDataBits = acm_tty_size[(termios->c_cflag & CSIZE) >> 4]; - + /* FIXME: Needs to clear unsupported bits in the termios */ acm->clocal = ((termios->c_cflag & CLOCAL) != 0); if (!newline.dwDTERate) { newline.dwDTERate = acm->line.dwDTERate; newctrl &= ~ACM_CTRL_DTR; - } else newctrl |= ACM_CTRL_DTR; + } else + newctrl |= ACM_CTRL_DTR; if (newctrl != acm->ctrlout) acm_set_control(acm, acm->ctrlout = newctrl); @@ -846,9 +892,8 @@ static void acm_write_buffers_free(struct acm *acm) struct acm_wb *wb; struct usb_device *usb_dev = interface_to_usbdev(acm->control); - for (wb = &acm->wb[0], i = 0; i < ACM_NW; i++, wb++) { + for (wb = &acm->wb[0], i = 0; i < ACM_NW; i++, wb++) usb_buffer_free(usb_dev, acm->writesize, wb->buf, wb->dmah); - } } static void acm_read_buffers_free(struct acm *acm) @@ -857,7 +902,8 @@ static void acm_read_buffers_free(struct acm *acm) int i, n = acm->rx_buflimit; for (i = 0; i < n; i++) - usb_buffer_free(usb_dev, acm->readsize, acm->rb[i].base, acm->rb[i].dma); + usb_buffer_free(usb_dev, acm->readsize, + acm->rb[i].base, acm->rb[i].dma); } /* Little helper: write buffers allocate */ @@ -882,8 +928,8 @@ static int acm_write_buffers_alloc(struct acm *acm) return 0; } -static int acm_probe (struct usb_interface *intf, - const struct usb_device_id *id) +static int acm_probe(struct usb_interface *intf, + const struct usb_device_id *id) { struct usb_cdc_union_desc *union_header = NULL; struct usb_cdc_country_functional_desc *cfd = NULL; @@ -897,7 +943,7 @@ static int acm_probe (struct usb_interface *intf, struct usb_device *usb_dev = interface_to_usbdev(intf); struct acm *acm; int minor; - int ctrlsize,readsize; + int ctrlsize, readsize; u8 *buf; u8 ac_management_function = 0; u8 call_management_function = 0; @@ -917,7 +963,7 @@ static int acm_probe (struct usb_interface *intf, control_interface = usb_ifnum_to_if(usb_dev, 0); goto skip_normal_probe; } - + /* normal probing*/ if (!buffer) { dev_err(&intf->dev, "Weird descriptor references\n"); @@ -925,8 +971,10 @@ static int acm_probe (struct usb_interface *intf, } if (!buflen) { - if (intf->cur_altsetting->endpoint->extralen && intf->cur_altsetting->endpoint->extra) { - dev_dbg(&intf->dev,"Seeking extra descriptors on endpoint\n"); + if (intf->cur_altsetting->endpoint->extralen && + intf->cur_altsetting->endpoint->extra) { + dev_dbg(&intf->dev, + "Seeking extra descriptors on endpoint\n"); buflen = intf->cur_altsetting->endpoint->extralen; buffer = intf->cur_altsetting->endpoint->extra; } else { @@ -937,47 +985,43 @@ static int acm_probe (struct usb_interface *intf, } while (buflen > 0) { - if (buffer [1] != USB_DT_CS_INTERFACE) { + if (buffer[1] != USB_DT_CS_INTERFACE) { dev_err(&intf->dev, "skipping garbage\n"); goto next_desc; } - switch (buffer [2]) { - case USB_CDC_UNION_TYPE: /* we've found it */ - if (union_header) { - dev_err(&intf->dev, "More than one " - "union descriptor, " - "skipping ...\n"); - goto next_desc; - } - union_header = (struct usb_cdc_union_desc *) - buffer; - break; - case USB_CDC_COUNTRY_TYPE: /* export through sysfs*/ - cfd = (struct usb_cdc_country_functional_desc *)buffer; - break; - case USB_CDC_HEADER_TYPE: /* maybe check version */ - break; /* for now we ignore it */ - case USB_CDC_ACM_TYPE: - ac_management_function = buffer[3]; - break; - case USB_CDC_CALL_MANAGEMENT_TYPE: - call_management_function = buffer[3]; - call_interface_num = buffer[4]; - if ((call_management_function & 3) != 3) - dev_err(&intf->dev, "This device " - "cannot do calls on its own. " - "It is no modem.\n"); - break; - default: - /* there are LOTS more CDC descriptors that - * could legitimately be found here. - */ - dev_dbg(&intf->dev, "Ignoring descriptor: " - "type %02x, length %d\n", - buffer[2], buffer[0]); - break; + switch (buffer[2]) { + case USB_CDC_UNION_TYPE: /* we've found it */ + if (union_header) { + dev_err(&intf->dev, "More than one " + "union descriptor, skipping ...\n"); + goto next_desc; } + union_header = (struct usb_cdc_union_desc *)buffer; + break; + case USB_CDC_COUNTRY_TYPE: /* export through sysfs*/ + cfd = (struct usb_cdc_country_functional_desc *)buffer; + break; + case USB_CDC_HEADER_TYPE: /* maybe check version */ + break; /* for now we ignore it */ + case USB_CDC_ACM_TYPE: + ac_management_function = buffer[3]; + break; + case USB_CDC_CALL_MANAGEMENT_TYPE: + call_management_function = buffer[3]; + call_interface_num = buffer[4]; + if ((call_management_function & 3) != 3) + dev_err(&intf->dev, "This device cannot do calls on its own. It is not a modem.\n"); + break; + default: + /* there are LOTS more CDC descriptors that + * could legitimately be found here. + */ + dev_dbg(&intf->dev, "Ignoring descriptor: " + "type %02x, length %d\n", + buffer[2], buffer[0]); + break; + } next_desc: buflen -= buffer[0]; buffer += buffer[0]; @@ -985,33 +1029,36 @@ next_desc: if (!union_header) { if (call_interface_num > 0) { - dev_dbg(&intf->dev,"No union descriptor, using call management descriptor\n"); + dev_dbg(&intf->dev, "No union descriptor, using call management descriptor\n"); data_interface = usb_ifnum_to_if(usb_dev, (data_interface_num = call_interface_num)); control_interface = intf; } else { - dev_dbg(&intf->dev,"No union descriptor, giving up\n"); + dev_dbg(&intf->dev, + "No union descriptor, giving up\n"); return -ENODEV; } } else { control_interface = usb_ifnum_to_if(usb_dev, union_header->bMasterInterface0); data_interface = usb_ifnum_to_if(usb_dev, (data_interface_num = union_header->bSlaveInterface0)); if (!control_interface || !data_interface) { - dev_dbg(&intf->dev,"no interfaces\n"); + dev_dbg(&intf->dev, "no interfaces\n"); return -ENODEV; } } - + if (data_interface_num != call_interface_num) - dev_dbg(&intf->dev,"Separate call control interface. That is not fully supported.\n"); + dev_dbg(&intf->dev, "Separate call control interface. That is not fully supported.\n"); skip_normal_probe: /*workaround for switched interfaces */ - if (data_interface->cur_altsetting->desc.bInterfaceClass != CDC_DATA_INTERFACE_TYPE) { - if (control_interface->cur_altsetting->desc.bInterfaceClass == CDC_DATA_INTERFACE_TYPE) { + if (data_interface->cur_altsetting->desc.bInterfaceClass + != CDC_DATA_INTERFACE_TYPE) { + if (control_interface->cur_altsetting->desc.bInterfaceClass + == CDC_DATA_INTERFACE_TYPE) { struct usb_interface *t; - dev_dbg(&intf->dev,"Your device has switched interfaces.\n"); - + dev_dbg(&intf->dev, + "Your device has switched interfaces.\n"); t = control_interface; control_interface = data_interface; data_interface = t; @@ -1023,9 +1070,9 @@ skip_normal_probe: /* Accept probe requests only for the control interface */ if (intf != control_interface) return -ENODEV; - + if (usb_interface_claimed(data_interface)) { /* valid in this context */ - dev_dbg(&intf->dev,"The data interface isn't available\n"); + dev_dbg(&intf->dev, "The data interface isn't available\n"); return -EBUSY; } @@ -1042,8 +1089,8 @@ skip_normal_probe: if (!usb_endpoint_dir_in(epread)) { /* descriptors are swapped */ struct usb_endpoint_descriptor *t; - dev_dbg(&intf->dev,"The data interface has switched endpoints\n"); - + dev_dbg(&intf->dev, + "The data interface has switched endpoints\n"); t = epread; epread = epwrite; epwrite = t; @@ -1056,13 +1103,15 @@ skip_normal_probe: return -ENODEV; } - if (!(acm = kzalloc(sizeof(struct acm), GFP_KERNEL))) { + acm = kzalloc(sizeof(struct acm), GFP_KERNEL); + if (acm == NULL) { dev_dbg(&intf->dev, "out of memory (acm kzalloc)\n"); goto alloc_fail; } ctrlsize = le16_to_cpu(epctrl->wMaxPacketSize); - readsize = le16_to_cpu(epread->wMaxPacketSize)* ( quirks == SINGLE_RX_URB ? 1 : 2); + readsize = le16_to_cpu(epread->wMaxPacketSize) * + (quirks == SINGLE_RX_URB ? 1 : 2); acm->writesize = le16_to_cpu(epwrite->wMaxPacketSize) * 20; acm->control = control_interface; acm->data = data_interface; @@ -1082,6 +1131,8 @@ skip_normal_probe: spin_lock_init(&acm->read_lock); mutex_init(&acm->mutex); acm->rx_endpoint = usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress); + tty_port_init(&acm->port); + acm->port.ops = &acm_port_ops; buf = usb_buffer_alloc(usb_dev, ctrlsize, GFP_KERNEL, &acm->ctrl_dma); if (!buf) { @@ -1103,8 +1154,10 @@ skip_normal_probe: for (i = 0; i < num_rx_buf; i++) { struct acm_ru *rcv = &(acm->ru[i]); - if (!(rcv->urb = usb_alloc_urb(0, GFP_KERNEL))) { - dev_dbg(&intf->dev, "out of memory (read urbs usb_alloc_urb)\n"); + rcv->urb = usb_alloc_urb(0, GFP_KERNEL); + if (rcv->urb == NULL) { + dev_dbg(&intf->dev, + "out of memory (read urbs usb_alloc_urb)\n"); goto alloc_fail7; } @@ -1117,26 +1170,29 @@ skip_normal_probe: rb->base = usb_buffer_alloc(acm->dev, readsize, GFP_KERNEL, &rb->dma); if (!rb->base) { - dev_dbg(&intf->dev, "out of memory (read bufs usb_buffer_alloc)\n"); + dev_dbg(&intf->dev, + "out of memory (read bufs usb_buffer_alloc)\n"); goto alloc_fail7; } } - for(i = 0; i < ACM_NW; i++) - { + for (i = 0; i < ACM_NW; i++) { struct acm_wb *snd = &(acm->wb[i]); - if (!(snd->urb = usb_alloc_urb(0, GFP_KERNEL))) { - dev_dbg(&intf->dev, "out of memory (write urbs usb_alloc_urb)"); + snd->urb = usb_alloc_urb(0, GFP_KERNEL); + if (snd->urb == NULL) { + dev_dbg(&intf->dev, + "out of memory (write urbs usb_alloc_urb)"); goto alloc_fail7; } - usb_fill_bulk_urb(snd->urb, usb_dev, usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress), - NULL, acm->writesize, acm_write_bulk, snd); + usb_fill_bulk_urb(snd->urb, usb_dev, + usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress), + NULL, acm->writesize, acm_write_bulk, snd); snd->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; snd->instance = acm; } - usb_set_intfdata (intf, acm); + usb_set_intfdata(intf, acm); i = device_create_file(&intf->dev, &dev_attr_bmCapabilities); if (i < 0) @@ -1147,7 +1203,8 @@ skip_normal_probe: if (!acm->country_codes) goto skip_countries; acm->country_code_size = cfd->bLength - 4; - memcpy(acm->country_codes, (u8 *)&cfd->wCountyCode0, cfd->bLength - 4); + memcpy(acm->country_codes, (u8 *)&cfd->wCountyCode0, + cfd->bLength - 4); acm->country_rel_date = cfd->iCountryCodeRelDate; i = device_create_file(&intf->dev, &dev_attr_wCountryCodes); @@ -1156,7 +1213,8 @@ skip_normal_probe: goto skip_countries; } - i = device_create_file(&intf->dev, &dev_attr_iCountryCodeRelDate); + i = device_create_file(&intf->dev, + &dev_attr_iCountryCodeRelDate); if (i < 0) { kfree(acm->country_codes); goto skip_countries; @@ -1164,8 +1222,10 @@ skip_normal_probe: } skip_countries: - usb_fill_int_urb(acm->ctrlurb, usb_dev, usb_rcvintpipe(usb_dev, epctrl->bEndpointAddress), - acm->ctrl_buffer, ctrlsize, acm_ctrl_irq, acm, epctrl->bInterval); + usb_fill_int_urb(acm->ctrlurb, usb_dev, + usb_rcvintpipe(usb_dev, epctrl->bEndpointAddress), + acm->ctrl_buffer, ctrlsize, acm_ctrl_irq, acm, + epctrl->bInterval); acm->ctrlurb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; acm->ctrlurb->transfer_dma = acm->ctrl_dma; @@ -1212,7 +1272,7 @@ static void stop_data_traffic(struct acm *acm) tasklet_disable(&acm->urb_task); usb_kill_urb(acm->ctrlurb); - for(i = 0; i < ACM_NW; i++) + for (i = 0; i < ACM_NW; i++) usb_kill_urb(acm->wb[i].urb); for (i = 0; i < acm->rx_buflimit; i++) usb_kill_urb(acm->ru[i].urb); @@ -1227,13 +1287,14 @@ static void acm_disconnect(struct usb_interface *intf) { struct acm *acm = usb_get_intfdata(intf); struct usb_device *usb_dev = interface_to_usbdev(intf); + struct tty_struct *tty; /* sibling interface is already cleaning up */ if (!acm) return; mutex_lock(&open_mutex); - if (acm->country_codes){ + if (acm->country_codes) { device_remove_file(&acm->control->dev, &dev_attr_wCountryCodes); device_remove_file(&acm->control->dev, @@ -1247,22 +1308,25 @@ static void acm_disconnect(struct usb_interface *intf) stop_data_traffic(acm); acm_write_buffers_free(acm); - usb_buffer_free(usb_dev, acm->ctrlsize, acm->ctrl_buffer, acm->ctrl_dma); + usb_buffer_free(usb_dev, acm->ctrlsize, acm->ctrl_buffer, + acm->ctrl_dma); acm_read_buffers_free(acm); usb_driver_release_interface(&acm_driver, intf == acm->control ? acm->data : acm->control); - if (!acm->used) { + if (acm->port.count == 0) { acm_tty_unregister(acm); mutex_unlock(&open_mutex); return; } mutex_unlock(&open_mutex); - - if (acm->tty) - tty_hangup(acm->tty); + tty = tty_port_tty_get(&acm->port); + if (tty) { + tty_hangup(tty); + tty_kref_put(tty); + } } #ifdef CONFIG_PM @@ -1297,7 +1361,7 @@ static int acm_suspend(struct usb_interface *intf, pm_message_t message) */ mutex_lock(&acm->mutex); - if (acm->used) + if (acm->port.count) stop_data_traffic(acm); mutex_unlock(&acm->mutex); @@ -1319,7 +1383,7 @@ static int acm_resume(struct usb_interface *intf) return 0; mutex_lock(&acm->mutex); - if (acm->used) { + if (acm->port.count) { rv = usb_submit_urb(acm->ctrlurb, GFP_NOIO); if (rv < 0) goto err_out; @@ -1398,7 +1462,7 @@ static struct usb_device_id acm_ids[] = { { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM, USB_CDC_ACM_PROTO_AT_GSM) }, { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM, - USB_CDC_ACM_PROTO_AT_3G ) }, + USB_CDC_ACM_PROTO_AT_3G) }, { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM, USB_CDC_ACM_PROTO_AT_CDMA) }, @@ -1406,7 +1470,7 @@ static struct usb_device_id acm_ids[] = { { } }; -MODULE_DEVICE_TABLE (usb, acm_ids); +MODULE_DEVICE_TABLE(usb, acm_ids); static struct usb_driver acm_driver = { .name = "cdc_acm", @@ -1429,6 +1493,7 @@ static struct usb_driver acm_driver = { static const struct tty_operations acm_ops = { .open = acm_tty_open, .close = acm_tty_close, + .hangup = acm_tty_hangup, .write = acm_tty_write, .write_room = acm_tty_write_room, .ioctl = acm_tty_ioctl, @@ -1460,7 +1525,8 @@ static int __init acm_init(void) acm_tty_driver->subtype = SERIAL_TYPE_NORMAL, acm_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV; acm_tty_driver->init_termios = tty_std_termios; - acm_tty_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; + acm_tty_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | + HUPCL | CLOCAL; tty_set_operations(acm_tty_driver, &acm_ops); retval = tty_register_driver(acm_tty_driver); @@ -1492,7 +1558,7 @@ static void __exit acm_exit(void) module_init(acm_init); module_exit(acm_exit); -MODULE_AUTHOR( DRIVER_AUTHOR ); -MODULE_DESCRIPTION( DRIVER_DESC ); +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); MODULE_ALIAS_CHARDEV_MAJOR(ACM_TTY_MAJOR); diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h index 1f95e7aa1b6..4c3856420ad 100644 --- a/drivers/usb/class/cdc-acm.h +++ b/drivers/usb/class/cdc-acm.h @@ -89,8 +89,8 @@ struct acm { struct usb_device *dev; /* the corresponding usb device */ struct usb_interface *control; /* control interface */ struct usb_interface *data; /* data interface */ - struct tty_struct *tty; /* the corresponding tty */ - struct urb *ctrlurb; /* urbs */ + struct tty_port port; /* our tty port data */ + struct urb *ctrlurb; /* urbs */ u8 *ctrl_buffer; /* buffers of urbs */ dma_addr_t ctrl_dma; /* dma handles of buffers */ u8 *country_codes; /* country codes from device */ @@ -120,7 +120,6 @@ struct acm { unsigned int ctrlout; /* output control lines (DTR, RTS) */ unsigned int writesize; /* max packet size for the output bulk endpoint */ unsigned int readsize,ctrlsize; /* buffer sizes for freeing */ - unsigned int used; /* someone has this acm's device open */ unsigned int minor; /* acm minor number */ unsigned char throttle; /* throttled by tty layer */ unsigned char clocal; /* termios CLOCAL */ diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c index b7eacad4d48..2bfd6dd85b5 100644 --- a/drivers/usb/serial/belkin_sa.c +++ b/drivers/usb/serial/belkin_sa.c @@ -93,8 +93,7 @@ static int belkin_sa_startup(struct usb_serial *serial); static void belkin_sa_shutdown(struct usb_serial *serial); static int belkin_sa_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); -static void belkin_sa_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp); +static void belkin_sa_close(struct usb_serial_port *port); static void belkin_sa_read_int_callback(struct urb *urb); static void belkin_sa_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios * old); @@ -244,8 +243,7 @@ exit: } /* belkin_sa_open */ -static void belkin_sa_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void belkin_sa_close(struct usb_serial_port *port) { dbg("%s port %d", __func__, port->number); diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index ab4cc277aa6..2830766f5b3 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -262,32 +262,40 @@ error: kfree(priv); return r; } -static void ch341_close(struct tty_struct *tty, struct usb_serial_port *port, - struct file *filp) +static int ch341_carrier_raised(struct usb_serial_port *port) +{ + struct ch341_private *priv = usb_get_serial_port_data(port); + if (priv->line_status & CH341_BIT_DCD) + return 1; + return 0; +} + +static void ch341_dtr_rts(struct usb_serial_port *port, int on) { struct ch341_private *priv = usb_get_serial_port_data(port); unsigned long flags; - unsigned int c_cflag; dbg("%s - port %d", __func__, port->number); + /* drop DTR and RTS */ + spin_lock_irqsave(&priv->lock, flags); + if (on) + priv->line_control |= CH341_BIT_RTS | CH341_BIT_DTR; + else + priv->line_control &= ~(CH341_BIT_RTS | CH341_BIT_DTR); + spin_unlock_irqrestore(&priv->lock, flags); + ch341_set_handshake(port->serial->dev, priv->line_control); + wake_up_interruptible(&priv->delta_msr_wait); +} + +static void ch341_close(struct usb_serial_port *port) +{ + dbg("%s - port %d", __func__, port->number); /* shutdown our urbs */ dbg("%s - shutting down urbs", __func__); usb_kill_urb(port->write_urb); usb_kill_urb(port->read_urb); usb_kill_urb(port->interrupt_in_urb); - - if (tty) { - c_cflag = tty->termios->c_cflag; - if (c_cflag & HUPCL) { - /* drop DTR and RTS */ - spin_lock_irqsave(&priv->lock, flags); - priv->line_control = 0; - spin_unlock_irqrestore(&priv->lock, flags); - ch341_set_handshake(port->serial->dev, 0); - } - } - wake_up_interruptible(&priv->delta_msr_wait); } @@ -302,7 +310,6 @@ static int ch341_open(struct tty_struct *tty, struct usb_serial_port *port, dbg("ch341_open()"); priv->baud_rate = DEFAULT_BAUD_RATE; - priv->line_control = CH341_BIT_RTS | CH341_BIT_DTR; r = ch341_configure(serial->dev, priv); if (r) @@ -322,7 +329,7 @@ static int ch341_open(struct tty_struct *tty, struct usb_serial_port *port, if (r) { dev_err(&port->dev, "%s - failed submitting interrupt urb," " error %d\n", __func__, r); - ch341_close(tty, port, NULL); + ch341_close(port); return -EPROTO; } @@ -343,9 +350,6 @@ static void ch341_set_termios(struct tty_struct *tty, dbg("ch341_set_termios()"); - if (!tty || !tty->termios) - return; - baud_rate = tty_get_baud_rate(tty); priv->baud_rate = baud_rate; @@ -568,6 +572,8 @@ static struct usb_serial_driver ch341_device = { .usb_driver = &ch341_driver, .num_ports = 1, .open = ch341_open, + .dtr_rts = ch341_dtr_rts, + .carrier_raised = ch341_carrier_raised, .close = ch341_close, .ioctl = ch341_ioctl, .set_termios = ch341_set_termios, diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c index 19e24045b13..247b61bfb7f 100644 --- a/drivers/usb/serial/console.c +++ b/drivers/usb/serial/console.c @@ -169,7 +169,9 @@ static int usb_console_setup(struct console *co, char *options) kfree(tty); } } - + /* So we know not to kill the hardware on a hangup on this + port. We have also bumped the use count by one so it won't go + idle */ port->console = 1; retval = 0; @@ -182,7 +184,7 @@ free_tty: kfree(tty); reset_open_count: port->port.count = 0; -goto out; + goto out; } static void usb_console_write(struct console *co, diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index e8d5133ce9c..16a154d3b2f 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -1,5 +1,5 @@ /* - * Silicon Laboratories CP2101/CP2102 USB to RS232 serial adaptor driver + * Silicon Laboratories CP210x USB to RS232 serial adaptor driver * * Copyright (C) 2005 Craig Shelley (craig@microtron.org.uk) * @@ -27,44 +27,46 @@ /* * Version Information */ -#define DRIVER_VERSION "v0.08" -#define DRIVER_DESC "Silicon Labs CP2101/CP2102 RS232 serial adaptor driver" +#define DRIVER_VERSION "v0.09" +#define DRIVER_DESC "Silicon Labs CP210x RS232 serial adaptor driver" /* * Function Prototypes */ -static int cp2101_open(struct tty_struct *, struct usb_serial_port *, +static int cp210x_open(struct tty_struct *, struct usb_serial_port *, struct file *); -static void cp2101_cleanup(struct usb_serial_port *); -static void cp2101_close(struct tty_struct *, struct usb_serial_port *, - struct file*); -static void cp2101_get_termios(struct tty_struct *, +static void cp210x_cleanup(struct usb_serial_port *); +static void cp210x_close(struct usb_serial_port *); +static void cp210x_get_termios(struct tty_struct *, struct usb_serial_port *port); -static void cp2101_get_termios_port(struct usb_serial_port *port, +static void cp210x_get_termios_port(struct usb_serial_port *port, unsigned int *cflagp, unsigned int *baudp); -static void cp2101_set_termios(struct tty_struct *, struct usb_serial_port *, +static void cp210x_set_termios(struct tty_struct *, struct usb_serial_port *, struct ktermios*); -static int cp2101_tiocmget(struct tty_struct *, struct file *); -static int cp2101_tiocmset(struct tty_struct *, struct file *, +static int cp210x_tiocmget(struct tty_struct *, struct file *); +static int cp210x_tiocmset(struct tty_struct *, struct file *, unsigned int, unsigned int); -static int cp2101_tiocmset_port(struct usb_serial_port *port, struct file *, +static int cp210x_tiocmset_port(struct usb_serial_port *port, struct file *, unsigned int, unsigned int); -static void cp2101_break_ctl(struct tty_struct *, int); -static int cp2101_startup(struct usb_serial *); -static void cp2101_shutdown(struct usb_serial *); +static void cp210x_break_ctl(struct tty_struct *, int); +static int cp210x_startup(struct usb_serial *); +static void cp210x_shutdown(struct usb_serial *); static int debug; static struct usb_device_id id_table [] = { { USB_DEVICE(0x0471, 0x066A) }, /* AKTAKOM ACE-1001 cable */ { USB_DEVICE(0x0489, 0xE000) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM Mobile */ + { USB_DEVICE(0x0745, 0x1000) }, /* CipherLab USB CCD Barcode Scanner 1000 */ { USB_DEVICE(0x08e6, 0x5501) }, /* Gemalto Prox-PU/CU contactless smartcard reader */ + { USB_DEVICE(0x08FD, 0x000A) }, /* Digianswer A/S , ZigBee/802.15.4 MAC Device */ { USB_DEVICE(0x0FCF, 0x1003) }, /* Dynastream ANT development board */ { USB_DEVICE(0x0FCF, 0x1004) }, /* Dynastream ANT2USB */ { USB_DEVICE(0x0FCF, 0x1006) }, /* Dynastream ANT development board */ { USB_DEVICE(0x10A6, 0xAA26) }, /* Knock-off DCU-11 cable */ { USB_DEVICE(0x10AB, 0x10C5) }, /* Siemens MC60 Cable */ { USB_DEVICE(0x10B5, 0xAC70) }, /* Nokia CA-42 USB */ + { USB_DEVICE(0x10C4, 0x0F91) }, /* Vstabi */ { USB_DEVICE(0x10C4, 0x800A) }, /* SPORTident BSM7-D-USB main station */ { USB_DEVICE(0x10C4, 0x803B) }, /* Pololu USB-serial converter */ { USB_DEVICE(0x10C4, 0x8053) }, /* Enfora EDG1228 */ @@ -85,10 +87,12 @@ static struct usb_device_id id_table [] = { { USB_DEVICE(0x10C4, 0x81C8) }, /* Lipowsky Industrie Elektronik GmbH, Baby-JTAG */ { USB_DEVICE(0x10C4, 0x81E2) }, /* Lipowsky Industrie Elektronik GmbH, Baby-LIN */ { USB_DEVICE(0x10C4, 0x81E7) }, /* Aerocomm Radio */ + { USB_DEVICE(0x10C4, 0x81F2) }, /* C1007 HF band RFID controller */ { USB_DEVICE(0x10C4, 0x8218) }, /* Lipowsky Industrie Elektronik GmbH, HARP-1 */ { USB_DEVICE(0x10C4, 0x822B) }, /* Modem EDGE(GSM) Comander 2 */ { USB_DEVICE(0x10C4, 0x826B) }, /* Cygnal Integrated Products, Inc., Fasttrax GPS demostration module */ { USB_DEVICE(0x10c4, 0x8293) }, /* Telegesys ETRX2USB */ + { USB_DEVICE(0x10C4, 0x82F9) }, /* Procyon AVS */ { USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */ { USB_DEVICE(0x10C4, 0x83A8) }, /* Amber Wireless AMB2560 */ { USB_DEVICE(0x10C4, 0x846E) }, /* BEI USB Sensor Interface (VCP) */ @@ -99,7 +103,9 @@ static struct usb_device_id id_table [] = { { USB_DEVICE(0x10C4, 0xF003) }, /* Elan Digital Systems USBpulse100 */ { USB_DEVICE(0x10C4, 0xF004) }, /* Elan Digital Systems USBcount50 */ { USB_DEVICE(0x10C5, 0xEA61) }, /* Silicon Labs MobiData GPRS USB Modem */ + { USB_DEVICE(0x10CE, 0xEA6A) }, /* Silicon Labs MobiData GPRS USB Modem 100EU */ { USB_DEVICE(0x13AD, 0x9999) }, /* Baltech card reader */ + { USB_DEVICE(0x1555, 0x0004) }, /* Owen AC4 USB-RS485 Converter */ { USB_DEVICE(0x166A, 0x0303) }, /* Clipsal 5500PCU C-Bus USB interface */ { USB_DEVICE(0x16D6, 0x0001) }, /* Jablotron serial interface */ { USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */ @@ -108,53 +114,70 @@ static struct usb_device_id id_table [] = { MODULE_DEVICE_TABLE(usb, id_table); -static struct usb_driver cp2101_driver = { - .name = "cp2101", +static struct usb_driver cp210x_driver = { + .name = "cp210x", .probe = usb_serial_probe, .disconnect = usb_serial_disconnect, .id_table = id_table, .no_dynamic_id = 1, }; -static struct usb_serial_driver cp2101_device = { +static struct usb_serial_driver cp210x_device = { .driver = { .owner = THIS_MODULE, - .name = "cp2101", + .name = "cp210x", }, - .usb_driver = &cp2101_driver, + .usb_driver = &cp210x_driver, .id_table = id_table, .num_ports = 1, - .open = cp2101_open, - .close = cp2101_close, - .break_ctl = cp2101_break_ctl, - .set_termios = cp2101_set_termios, - .tiocmget = cp2101_tiocmget, - .tiocmset = cp2101_tiocmset, - .attach = cp2101_startup, - .shutdown = cp2101_shutdown, + .open = cp210x_open, + .close = cp210x_close, + .break_ctl = cp210x_break_ctl, + .set_termios = cp210x_set_termios, + .tiocmget = cp210x_tiocmget, + .tiocmset = cp210x_tiocmset, + .attach = cp210x_startup, + .shutdown = cp210x_shutdown, }; /* Config request types */ #define REQTYPE_HOST_TO_DEVICE 0x41 #define REQTYPE_DEVICE_TO_HOST 0xc1 -/* Config SET requests. To GET, add 1 to the request number */ -#define CP2101_UART 0x00 /* Enable / Disable */ -#define CP2101_BAUDRATE 0x01 /* (BAUD_RATE_GEN_FREQ / baudrate) */ -#define CP2101_BITS 0x03 /* 0x(0)(databits)(parity)(stopbits) */ -#define CP2101_BREAK 0x05 /* On / Off */ -#define CP2101_CONTROL 0x07 /* Flow control line states */ -#define CP2101_MODEMCTL 0x13 /* Modem controls */ -#define CP2101_CONFIG_6 0x19 /* 6 bytes of config data ??? */ - -/* CP2101_UART */ +/* Config request codes */ +#define CP210X_IFC_ENABLE 0x00 +#define CP210X_SET_BAUDDIV 0x01 +#define CP210X_GET_BAUDDIV 0x02 +#define CP210X_SET_LINE_CTL 0x03 +#define CP210X_GET_LINE_CTL 0x04 +#define CP210X_SET_BREAK 0x05 +#define CP210X_IMM_CHAR 0x06 +#define CP210X_SET_MHS 0x07 +#define CP210X_GET_MDMSTS 0x08 +#define CP210X_SET_XON 0x09 +#define CP210X_SET_XOFF 0x0A +#define CP210X_SET_EVENTMASK 0x0B +#define CP210X_GET_EVENTMASK 0x0C +#define CP210X_SET_CHAR 0x0D +#define CP210X_GET_CHARS 0x0E +#define CP210X_GET_PROPS 0x0F +#define CP210X_GET_COMM_STATUS 0x10 +#define CP210X_RESET 0x11 +#define CP210X_PURGE 0x12 +#define CP210X_SET_FLOW 0x13 +#define CP210X_GET_FLOW 0x14 +#define CP210X_EMBED_EVENTS 0x15 +#define CP210X_GET_EVENTSTATE 0x16 +#define CP210X_SET_CHARS 0x19 + +/* CP210X_IFC_ENABLE */ #define UART_ENABLE 0x0001 #define UART_DISABLE 0x0000 -/* CP2101_BAUDRATE */ +/* CP210X_(SET|GET)_BAUDDIV */ #define BAUD_RATE_GEN_FREQ 0x384000 -/* CP2101_BITS */ +/* CP210X_(SET|GET)_LINE_CTL */ #define BITS_DATA_MASK 0X0f00 #define BITS_DATA_5 0X0500 #define BITS_DATA_6 0X0600 @@ -174,11 +197,11 @@ static struct usb_serial_driver cp2101_device = { #define BITS_STOP_1_5 0x0001 #define BITS_STOP_2 0x0002 -/* CP2101_BREAK */ +/* CP210X_SET_BREAK */ #define BREAK_ON 0x0000 #define BREAK_OFF 0x0001 -/* CP2101_CONTROL */ +/* CP210X_(SET_MHS|GET_MDMSTS) */ #define CONTROL_DTR 0x0001 #define CONTROL_RTS 0x0002 #define CONTROL_CTS 0x0010 @@ -189,13 +212,13 @@ static struct usb_serial_driver cp2101_device = { #define CONTROL_WRITE_RTS 0x0200 /* - * cp2101_get_config - * Reads from the CP2101 configuration registers + * cp210x_get_config + * Reads from the CP210x configuration registers * 'size' is specified in bytes. * 'data' is a pointer to a pre-allocated array of integers large * enough to hold 'size' bytes (with 4 bytes to each integer) */ -static int cp2101_get_config(struct usb_serial_port *port, u8 request, +static int cp210x_get_config(struct usb_serial_port *port, u8 request, unsigned int *data, int size) { struct usb_serial *serial = port->serial; @@ -211,9 +234,6 @@ static int cp2101_get_config(struct usb_serial_port *port, u8 request, return -ENOMEM; } - /* For get requests, the request number must be incremented */ - request++; - /* Issue the request, attempting to read 'size' bytes */ result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), request, REQTYPE_DEVICE_TO_HOST, 0x0000, @@ -236,12 +256,12 @@ static int cp2101_get_config(struct usb_serial_port *port, u8 request, } /* - * cp2101_set_config - * Writes to the CP2101 configuration registers + * cp210x_set_config + * Writes to the CP210x configuration registers * Values less than 16 bits wide are sent directly * 'size' is specified in bytes. */ -static int cp2101_set_config(struct usb_serial_port *port, u8 request, +static int cp210x_set_config(struct usb_serial_port *port, u8 request, unsigned int *data, int size) { struct usb_serial *serial = port->serial; @@ -292,21 +312,21 @@ static int cp2101_set_config(struct usb_serial_port *port, u8 request, } /* - * cp2101_set_config_single - * Convenience function for calling cp2101_set_config on single data values + * cp210x_set_config_single + * Convenience function for calling cp210x_set_config on single data values * without requiring an integer pointer */ -static inline int cp2101_set_config_single(struct usb_serial_port *port, +static inline int cp210x_set_config_single(struct usb_serial_port *port, u8 request, unsigned int data) { - return cp2101_set_config(port, request, &data, 2); + return cp210x_set_config(port, request, &data, 2); } /* - * cp2101_quantise_baudrate + * cp210x_quantise_baudrate * Quantises the baud rate as per AN205 Table 1 */ -static unsigned int cp2101_quantise_baudrate(unsigned int baud) { +static unsigned int cp210x_quantise_baudrate(unsigned int baud) { if (baud <= 56) baud = 0; else if (baud <= 300) baud = 300; else if (baud <= 600) baud = 600; @@ -343,7 +363,7 @@ static unsigned int cp2101_quantise_baudrate(unsigned int baud) { return baud; } -static int cp2101_open(struct tty_struct *tty, struct usb_serial_port *port, +static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp) { struct usb_serial *serial = port->serial; @@ -351,7 +371,7 @@ static int cp2101_open(struct tty_struct *tty, struct usb_serial_port *port, dbg("%s - port %d", __func__, port->number); - if (cp2101_set_config_single(port, CP2101_UART, UART_ENABLE)) { + if (cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_ENABLE)) { dev_err(&port->dev, "%s - Unable to enable UART\n", __func__); return -EPROTO; @@ -373,17 +393,17 @@ static int cp2101_open(struct tty_struct *tty, struct usb_serial_port *port, } /* Configure the termios structure */ - cp2101_get_termios(tty, port); + cp210x_get_termios(tty, port); /* Set the DTR and RTS pins low */ - cp2101_tiocmset_port(tty ? (struct usb_serial_port *) tty->driver_data + cp210x_tiocmset_port(tty ? (struct usb_serial_port *) tty->driver_data : port, NULL, TIOCM_DTR | TIOCM_RTS, 0); return 0; } -static void cp2101_cleanup(struct usb_serial_port *port) +static void cp210x_cleanup(struct usb_serial_port *port) { struct usb_serial *serial = port->serial; @@ -398,8 +418,7 @@ static void cp2101_cleanup(struct usb_serial_port *port) } } -static void cp2101_close(struct tty_struct *tty, struct usb_serial_port *port, - struct file *filp) +static void cp210x_close(struct usb_serial_port *port) { dbg("%s - port %d", __func__, port->number); @@ -410,23 +429,23 @@ static void cp2101_close(struct tty_struct *tty, struct usb_serial_port *port, mutex_lock(&port->serial->disc_mutex); if (!port->serial->disconnected) - cp2101_set_config_single(port, CP2101_UART, UART_DISABLE); + cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_DISABLE); mutex_unlock(&port->serial->disc_mutex); } /* - * cp2101_get_termios + * cp210x_get_termios * Reads the baud rate, data bits, parity, stop bits and flow control mode * from the device, corrects any unsupported values, and configures the * termios structure to reflect the state of the device */ -static void cp2101_get_termios(struct tty_struct *tty, +static void cp210x_get_termios(struct tty_struct *tty, struct usb_serial_port *port) { unsigned int baud; if (tty) { - cp2101_get_termios_port(tty->driver_data, + cp210x_get_termios_port(tty->driver_data, &tty->termios->c_cflag, &baud); tty_encode_baud_rate(tty, baud, baud); } @@ -434,15 +453,15 @@ static void cp2101_get_termios(struct tty_struct *tty, else { unsigned int cflag; cflag = 0; - cp2101_get_termios_port(port, &cflag, &baud); + cp210x_get_termios_port(port, &cflag, &baud); } } /* - * cp2101_get_termios_port - * This is the heart of cp2101_get_termios which always uses a &usb_serial_port. + * cp210x_get_termios_port + * This is the heart of cp210x_get_termios which always uses a &usb_serial_port. */ -static void cp2101_get_termios_port(struct usb_serial_port *port, +static void cp210x_get_termios_port(struct usb_serial_port *port, unsigned int *cflagp, unsigned int *baudp) { unsigned int cflag, modem_ctl[4]; @@ -451,17 +470,17 @@ static void cp2101_get_termios_port(struct usb_serial_port *port, dbg("%s - port %d", __func__, port->number); - cp2101_get_config(port, CP2101_BAUDRATE, &baud, 2); + cp210x_get_config(port, CP210X_GET_BAUDDIV, &baud, 2); /* Convert to baudrate */ if (baud) - baud = cp2101_quantise_baudrate((BAUD_RATE_GEN_FREQ + baud/2)/ baud); + baud = cp210x_quantise_baudrate((BAUD_RATE_GEN_FREQ + baud/2)/ baud); dbg("%s - baud rate = %d", __func__, baud); *baudp = baud; cflag = *cflagp; - cp2101_get_config(port, CP2101_BITS, &bits, 2); + cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); cflag &= ~CSIZE; switch (bits & BITS_DATA_MASK) { case BITS_DATA_5: @@ -486,14 +505,14 @@ static void cp2101_get_termios_port(struct usb_serial_port *port, cflag |= CS8; bits &= ~BITS_DATA_MASK; bits |= BITS_DATA_8; - cp2101_set_config(port, CP2101_BITS, &bits, 2); + cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); break; default: dbg("%s - Unknown number of data bits, using 8", __func__); cflag |= CS8; bits &= ~BITS_DATA_MASK; bits |= BITS_DATA_8; - cp2101_set_config(port, CP2101_BITS, &bits, 2); + cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); break; } @@ -516,20 +535,20 @@ static void cp2101_get_termios_port(struct usb_serial_port *port, __func__); cflag &= ~PARENB; bits &= ~BITS_PARITY_MASK; - cp2101_set_config(port, CP2101_BITS, &bits, 2); + cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); break; case BITS_PARITY_SPACE: dbg("%s - parity = SPACE (not supported, disabling parity)", __func__); cflag &= ~PARENB; bits &= ~BITS_PARITY_MASK; - cp2101_set_config(port, CP2101_BITS, &bits, 2); + cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); break; default: dbg("%s - Unknown parity mode, disabling parity", __func__); cflag &= ~PARENB; bits &= ~BITS_PARITY_MASK; - cp2101_set_config(port, CP2101_BITS, &bits, 2); + cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); break; } @@ -542,7 +561,7 @@ static void cp2101_get_termios_port(struct usb_serial_port *port, dbg("%s - stop bits = 1.5 (not supported, using 1 stop bit)", __func__); bits &= ~BITS_STOP_MASK; - cp2101_set_config(port, CP2101_BITS, &bits, 2); + cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); break; case BITS_STOP_2: dbg("%s - stop bits = 2", __func__); @@ -552,11 +571,11 @@ static void cp2101_get_termios_port(struct usb_serial_port *port, dbg("%s - Unknown number of stop bits, using 1 stop bit", __func__); bits &= ~BITS_STOP_MASK; - cp2101_set_config(port, CP2101_BITS, &bits, 2); + cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); break; } - cp2101_get_config(port, CP2101_MODEMCTL, modem_ctl, 16); + cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16); if (modem_ctl[0] & 0x0008) { dbg("%s - flow control = CRTSCTS", __func__); cflag |= CRTSCTS; @@ -568,7 +587,7 @@ static void cp2101_get_termios_port(struct usb_serial_port *port, *cflagp = cflag; } -static void cp2101_set_termios(struct tty_struct *tty, +static void cp210x_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios) { unsigned int cflag, old_cflag; @@ -583,13 +602,13 @@ static void cp2101_set_termios(struct tty_struct *tty, tty->termios->c_cflag &= ~CMSPAR; cflag = tty->termios->c_cflag; old_cflag = old_termios->c_cflag; - baud = cp2101_quantise_baudrate(tty_get_baud_rate(tty)); + baud = cp210x_quantise_baudrate(tty_get_baud_rate(tty)); /* If the baud rate is to be updated*/ if (baud != tty_termios_baud_rate(old_termios) && baud != 0) { dbg("%s - Setting baud rate to %d baud", __func__, baud); - if (cp2101_set_config_single(port, CP2101_BAUDRATE, + if (cp210x_set_config_single(port, CP210X_SET_BAUDDIV, ((BAUD_RATE_GEN_FREQ + baud/2) / baud))) { dbg("Baud rate requested not supported by device\n"); baud = tty_termios_baud_rate(old_termios); @@ -600,7 +619,7 @@ static void cp2101_set_termios(struct tty_struct *tty, /* If the number of data bits is to be updated */ if ((cflag & CSIZE) != (old_cflag & CSIZE)) { - cp2101_get_config(port, CP2101_BITS, &bits, 2); + cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); bits &= ~BITS_DATA_MASK; switch (cflag & CSIZE) { case CS5: @@ -624,19 +643,19 @@ static void cp2101_set_termios(struct tty_struct *tty, dbg("%s - data bits = 9", __func__); break;*/ default: - dbg("cp2101 driver does not " + dbg("cp210x driver does not " "support the number of bits requested," " using 8 bit mode\n"); bits |= BITS_DATA_8; break; } - if (cp2101_set_config(port, CP2101_BITS, &bits, 2)) + if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2)) dbg("Number of data bits requested " "not supported by device\n"); } if ((cflag & (PARENB|PARODD)) != (old_cflag & (PARENB|PARODD))) { - cp2101_get_config(port, CP2101_BITS, &bits, 2); + cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); bits &= ~BITS_PARITY_MASK; if (cflag & PARENB) { if (cflag & PARODD) { @@ -647,13 +666,13 @@ static void cp2101_set_termios(struct tty_struct *tty, dbg("%s - parity = EVEN", __func__); } } - if (cp2101_set_config(port, CP2101_BITS, &bits, 2)) + if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2)) dbg("Parity mode not supported " "by device\n"); } if ((cflag & CSTOPB) != (old_cflag & CSTOPB)) { - cp2101_get_config(port, CP2101_BITS, &bits, 2); + cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); bits &= ~BITS_STOP_MASK; if (cflag & CSTOPB) { bits |= BITS_STOP_2; @@ -662,13 +681,13 @@ static void cp2101_set_termios(struct tty_struct *tty, bits |= BITS_STOP_1; dbg("%s - stop bits = 1", __func__); } - if (cp2101_set_config(port, CP2101_BITS, &bits, 2)) + if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2)) dbg("Number of stop bits requested " "not supported by device\n"); } if ((cflag & CRTSCTS) != (old_cflag & CRTSCTS)) { - cp2101_get_config(port, CP2101_MODEMCTL, modem_ctl, 16); + cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16); dbg("%s - read modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x", __func__, modem_ctl[0], modem_ctl[1], modem_ctl[2], modem_ctl[3]); @@ -688,19 +707,19 @@ static void cp2101_set_termios(struct tty_struct *tty, dbg("%s - write modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x", __func__, modem_ctl[0], modem_ctl[1], modem_ctl[2], modem_ctl[3]); - cp2101_set_config(port, CP2101_MODEMCTL, modem_ctl, 16); + cp210x_set_config(port, CP210X_SET_FLOW, modem_ctl, 16); } } -static int cp2101_tiocmset (struct tty_struct *tty, struct file *file, +static int cp210x_tiocmset (struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { struct usb_serial_port *port = tty->driver_data; - return cp2101_tiocmset_port(port, file, set, clear); + return cp210x_tiocmset_port(port, file, set, clear); } -static int cp2101_tiocmset_port(struct usb_serial_port *port, struct file *file, +static int cp210x_tiocmset_port(struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear) { unsigned int control = 0; @@ -726,10 +745,10 @@ static int cp2101_tiocmset_port(struct usb_serial_port *port, struct file *file, dbg("%s - control = 0x%.4x", __func__, control); - return cp2101_set_config(port, CP2101_CONTROL, &control, 2); + return cp210x_set_config(port, CP210X_SET_MHS, &control, 2); } -static int cp2101_tiocmget (struct tty_struct *tty, struct file *file) +static int cp210x_tiocmget (struct tty_struct *tty, struct file *file) { struct usb_serial_port *port = tty->driver_data; unsigned int control; @@ -737,7 +756,7 @@ static int cp2101_tiocmget (struct tty_struct *tty, struct file *file) dbg("%s - port %d", __func__, port->number); - cp2101_get_config(port, CP2101_CONTROL, &control, 1); + cp210x_get_config(port, CP210X_GET_MDMSTS, &control, 1); result = ((control & CONTROL_DTR) ? TIOCM_DTR : 0) |((control & CONTROL_RTS) ? TIOCM_RTS : 0) @@ -751,7 +770,7 @@ static int cp2101_tiocmget (struct tty_struct *tty, struct file *file) return result; } -static void cp2101_break_ctl (struct tty_struct *tty, int break_state) +static void cp210x_break_ctl (struct tty_struct *tty, int break_state) { struct usb_serial_port *port = tty->driver_data; unsigned int state; @@ -763,17 +782,17 @@ static void cp2101_break_ctl (struct tty_struct *tty, int break_state) state = BREAK_ON; dbg("%s - turning break %s", __func__, state == BREAK_OFF ? "off" : "on"); - cp2101_set_config(port, CP2101_BREAK, &state, 2); + cp210x_set_config(port, CP210X_SET_BREAK, &state, 2); } -static int cp2101_startup(struct usb_serial *serial) +static int cp210x_startup(struct usb_serial *serial) { - /* CP2101 buffers behave strangely unless device is reset */ + /* cp210x buffers behave strangely unless device is reset */ usb_reset_device(serial->dev); return 0; } -static void cp2101_shutdown(struct usb_serial *serial) +static void cp210x_shutdown(struct usb_serial *serial) { int i; @@ -781,21 +800,21 @@ static void cp2101_shutdown(struct usb_serial *serial) /* Stop reads and writes on all ports */ for (i = 0; i < serial->num_ports; ++i) - cp2101_cleanup(serial->port[i]); + cp210x_cleanup(serial->port[i]); } -static int __init cp2101_init(void) +static int __init cp210x_init(void) { int retval; - retval = usb_serial_register(&cp2101_device); + retval = usb_serial_register(&cp210x_device); if (retval) return retval; /* Failed to register */ - retval = usb_register(&cp2101_driver); + retval = usb_register(&cp210x_driver); if (retval) { /* Failed to register */ - usb_serial_deregister(&cp2101_device); + usb_serial_deregister(&cp210x_device); return retval; } @@ -805,14 +824,14 @@ static int __init cp2101_init(void) return 0; } -static void __exit cp2101_exit(void) +static void __exit cp210x_exit(void) { - usb_deregister(&cp2101_driver); - usb_serial_deregister(&cp2101_device); + usb_deregister(&cp210x_driver); + usb_serial_deregister(&cp210x_device); } -module_init(cp2101_init); -module_exit(cp2101_exit); +module_init(cp210x_init); +module_exit(cp210x_exit); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_VERSION(DRIVER_VERSION); diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c index dd501bb63ed..933ba913e66 100644 --- a/drivers/usb/serial/cyberjack.c +++ b/drivers/usb/serial/cyberjack.c @@ -61,8 +61,7 @@ static int cyberjack_startup(struct usb_serial *serial); static void cyberjack_shutdown(struct usb_serial *serial); static int cyberjack_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); -static void cyberjack_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp); +static void cyberjack_close(struct usb_serial_port *port); static int cyberjack_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); static int cyberjack_write_room(struct tty_struct *tty); @@ -185,8 +184,7 @@ static int cyberjack_open(struct tty_struct *tty, return result; } -static void cyberjack_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void cyberjack_close(struct usb_serial_port *port) { dbg("%s - port %d", __func__, port->number); diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index e568710b263..669f9384853 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -174,8 +174,8 @@ static int cypress_ca42v2_startup(struct usb_serial *serial); static void cypress_shutdown(struct usb_serial *serial); static int cypress_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); -static void cypress_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp); +static void cypress_close(struct usb_serial_port *port); +static void cypress_dtr_rts(struct usb_serial_port *port, int on); static int cypress_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); static void cypress_send(struct usb_serial_port *port); @@ -218,6 +218,7 @@ static struct usb_serial_driver cypress_earthmate_device = { .shutdown = cypress_shutdown, .open = cypress_open, .close = cypress_close, + .dtr_rts = cypress_dtr_rts, .write = cypress_write, .write_room = cypress_write_room, .ioctl = cypress_ioctl, @@ -244,6 +245,7 @@ static struct usb_serial_driver cypress_hidcom_device = { .shutdown = cypress_shutdown, .open = cypress_open, .close = cypress_close, + .dtr_rts = cypress_dtr_rts, .write = cypress_write, .write_room = cypress_write_room, .ioctl = cypress_ioctl, @@ -270,6 +272,7 @@ static struct usb_serial_driver cypress_ca42v2_device = { .shutdown = cypress_shutdown, .open = cypress_open, .close = cypress_close, + .dtr_rts = cypress_dtr_rts, .write = cypress_write, .write_room = cypress_write_room, .ioctl = cypress_ioctl, @@ -656,11 +659,7 @@ static int cypress_open(struct tty_struct *tty, priv->rx_flags = 0; spin_unlock_irqrestore(&priv->lock, flags); - /* raise both lines and set termios */ - spin_lock_irqsave(&priv->lock, flags); - priv->line_control = CONTROL_DTR | CONTROL_RTS; - priv->cmd_ctrl = 1; - spin_unlock_irqrestore(&priv->lock, flags); + /* Set termios */ result = cypress_write(tty, port, NULL, 0); if (result) { @@ -694,76 +693,42 @@ static int cypress_open(struct tty_struct *tty, __func__, result); cypress_set_dead(port); } - + port->port.drain_delay = 256; return result; } /* cypress_open */ +static void cypress_dtr_rts(struct usb_serial_port *port, int on) +{ + struct cypress_private *priv = usb_get_serial_port_data(port); + /* drop dtr and rts */ + priv = usb_get_serial_port_data(port); + spin_lock_irq(&priv->lock); + if (on == 0) + priv->line_control = 0; + else + priv->line_control = CONTROL_DTR | CONTROL_RTS; + priv->cmd_ctrl = 1; + spin_unlock_irq(&priv->lock); + cypress_write(NULL, port, NULL, 0); +} -static void cypress_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void cypress_close(struct usb_serial_port *port) { struct cypress_private *priv = usb_get_serial_port_data(port); - unsigned int c_cflag; - int bps; - long timeout; - wait_queue_t wait; dbg("%s - port %d", __func__, port->number); - /* wait for data to drain from buffer */ - spin_lock_irq(&priv->lock); - timeout = CYPRESS_CLOSING_WAIT; - init_waitqueue_entry(&wait, current); - add_wait_queue(&tty->write_wait, &wait); - for (;;) { - set_current_state(TASK_INTERRUPTIBLE); - if (cypress_buf_data_avail(priv->buf) == 0 - || timeout == 0 || signal_pending(current) - /* without mutex, allowed due to harmless failure mode */ - || port->serial->disconnected) - break; - spin_unlock_irq(&priv->lock); - timeout = schedule_timeout(timeout); - spin_lock_irq(&priv->lock); - } - set_current_state(TASK_RUNNING); - remove_wait_queue(&tty->write_wait, &wait); - /* clear out any remaining data in the buffer */ - cypress_buf_clear(priv->buf); - spin_unlock_irq(&priv->lock); - /* writing is potentially harmful, lock must be taken */ mutex_lock(&port->serial->disc_mutex); if (port->serial->disconnected) { mutex_unlock(&port->serial->disc_mutex); return; } - /* wait for characters to drain from device */ - if (tty) { - bps = tty_get_baud_rate(tty); - if (bps > 1200) - timeout = max((HZ * 2560) / bps, HZ / 10); - else - timeout = 2 * HZ; - schedule_timeout_interruptible(timeout); - } - + cypress_buf_clear(priv->buf); dbg("%s - stopping urbs", __func__); usb_kill_urb(port->interrupt_in_urb); usb_kill_urb(port->interrupt_out_urb); - if (tty) { - c_cflag = tty->termios->c_cflag; - if (c_cflag & HUPCL) { - /* drop dtr and rts */ - priv = usb_get_serial_port_data(port); - spin_lock_irq(&priv->lock); - priv->line_control = 0; - priv->cmd_ctrl = 1; - spin_unlock_irq(&priv->lock); - cypress_write(tty, port, NULL, 0); - } - } if (stats) dev_info(&port->dev, "Statistics: %d Bytes In | %d Bytes Out | %d Commands Issued\n", diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index 38ba4ea8b6b..30f5140eff0 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -422,7 +422,6 @@ struct digi_port { int dp_throttled; int dp_throttle_restart; wait_queue_head_t dp_flush_wait; - int dp_in_close; /* close in progress */ wait_queue_head_t dp_close_wait; /* wait queue for close */ struct work_struct dp_wakeup_work; struct usb_serial_port *dp_port; @@ -456,8 +455,9 @@ static int digi_write_room(struct tty_struct *tty); static int digi_chars_in_buffer(struct tty_struct *tty); static int digi_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); -static void digi_close(struct tty_struct *tty, struct usb_serial_port *port, - struct file *filp); +static void digi_close(struct usb_serial_port *port); +static int digi_carrier_raised(struct usb_serial_port *port); +static void digi_dtr_rts(struct usb_serial_port *port, int on); static int digi_startup_device(struct usb_serial *serial); static int digi_startup(struct usb_serial *serial); static void digi_shutdown(struct usb_serial *serial); @@ -510,6 +510,8 @@ static struct usb_serial_driver digi_acceleport_2_device = { .num_ports = 3, .open = digi_open, .close = digi_close, + .dtr_rts = digi_dtr_rts, + .carrier_raised = digi_carrier_raised, .write = digi_write, .write_room = digi_write_room, .write_bulk_callback = digi_write_bulk_callback, @@ -1328,6 +1330,19 @@ static int digi_chars_in_buffer(struct tty_struct *tty) } +static void digi_dtr_rts(struct usb_serial_port *port, int on) +{ + /* Adjust DTR and RTS */ + digi_set_modem_signals(port, on * (TIOCM_DTR|TIOCM_RTS), 1); +} + +static int digi_carrier_raised(struct usb_serial_port *port) +{ + struct digi_port *priv = usb_get_serial_port_data(port); + if (priv->dp_modem_signals & TIOCM_CD) + return 1; + return 0; +} static int digi_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp) @@ -1336,7 +1351,6 @@ static int digi_open(struct tty_struct *tty, struct usb_serial_port *port, unsigned char buf[32]; struct digi_port *priv = usb_get_serial_port_data(port); struct ktermios not_termios; - unsigned long flags = 0; dbg("digi_open: TOP: port=%d, open_count=%d", priv->dp_port_num, port->port.count); @@ -1345,26 +1359,6 @@ static int digi_open(struct tty_struct *tty, struct usb_serial_port *port, if (digi_startup_device(port->serial) != 0) return -ENXIO; - spin_lock_irqsave(&priv->dp_port_lock, flags); - - /* don't wait on a close in progress for non-blocking opens */ - if (priv->dp_in_close && (filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0) { - spin_unlock_irqrestore(&priv->dp_port_lock, flags); - return -EAGAIN; - } - - /* wait for a close in progress to finish */ - while (priv->dp_in_close) { - cond_wait_interruptible_timeout_irqrestore( - &priv->dp_close_wait, DIGI_RETRY_TIMEOUT, - &priv->dp_port_lock, flags); - if (signal_pending(current)) - return -EINTR; - spin_lock_irqsave(&priv->dp_port_lock, flags); - } - - spin_unlock_irqrestore(&priv->dp_port_lock, flags); - /* read modem signals automatically whenever they change */ buf[0] = DIGI_CMD_READ_INPUT_SIGNALS; buf[1] = priv->dp_port_num; @@ -1387,16 +1381,11 @@ static int digi_open(struct tty_struct *tty, struct usb_serial_port *port, not_termios.c_iflag = ~tty->termios->c_iflag; digi_set_termios(tty, port, ¬_termios); } - - /* set DTR and RTS */ - digi_set_modem_signals(port, TIOCM_DTR|TIOCM_RTS, 1); - return 0; } -static void digi_close(struct tty_struct *tty, struct usb_serial_port *port, - struct file *filp) +static void digi_close(struct usb_serial_port *port) { DEFINE_WAIT(wait); int ret; @@ -1411,28 +1400,9 @@ static void digi_close(struct tty_struct *tty, struct usb_serial_port *port, if (port->serial->disconnected) goto exit; - /* do cleanup only after final close on this port */ - spin_lock_irq(&priv->dp_port_lock); - priv->dp_in_close = 1; - spin_unlock_irq(&priv->dp_port_lock); - - /* tell line discipline to process only XON/XOFF */ - tty->closing = 1; - - /* wait for output to drain */ - if ((filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0) - tty_wait_until_sent(tty, DIGI_CLOSE_TIMEOUT); - - /* flush driver and line discipline buffers */ - tty_driver_flush_buffer(tty); - tty_ldisc_flush(tty); - if (port->serial->dev) { - /* wait for transmit idle */ - if ((filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0) - digi_transmit_idle(port, DIGI_CLOSE_TIMEOUT); - /* drop DTR and RTS */ - digi_set_modem_signals(port, 0, 0); + /* FIXME: Transmit idle belongs in the wait_unti_sent path */ + digi_transmit_idle(port, DIGI_CLOSE_TIMEOUT); /* disable input flow control */ buf[0] = DIGI_CMD_SET_INPUT_FLOW_CONTROL; @@ -1477,11 +1447,9 @@ static void digi_close(struct tty_struct *tty, struct usb_serial_port *port, /* shutdown any outstanding bulk writes */ usb_kill_urb(port->write_urb); } - tty->closing = 0; exit: spin_lock_irq(&priv->dp_port_lock); priv->dp_write_urb_in_use = 0; - priv->dp_in_close = 0; wake_up_interruptible(&priv->dp_close_wait); spin_unlock_irq(&priv->dp_port_lock); mutex_unlock(&port->serial->disc_mutex); @@ -1560,7 +1528,6 @@ static int digi_startup(struct usb_serial *serial) priv->dp_throttled = 0; priv->dp_throttle_restart = 0; init_waitqueue_head(&priv->dp_flush_wait); - priv->dp_in_close = 0; init_waitqueue_head(&priv->dp_close_wait); INIT_WORK(&priv->dp_wakeup_work, digi_wakeup_write_lock); priv->dp_port = serial->port[i]; diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c index c709ec474a8..2b141ccb0cd 100644 --- a/drivers/usb/serial/empeg.c +++ b/drivers/usb/serial/empeg.c @@ -81,8 +81,7 @@ static int debug; /* function prototypes for an empeg-car player */ static int empeg_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); -static void empeg_close(struct tty_struct *tty, struct usb_serial_port *port, - struct file *filp); +static void empeg_close(struct usb_serial_port *port); static int empeg_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); @@ -181,8 +180,7 @@ static int empeg_open(struct tty_struct *tty, struct usb_serial_port *port, } -static void empeg_close(struct tty_struct *tty, struct usb_serial_port *port, - struct file *filp) +static void empeg_close(struct usb_serial_port *port) { dbg("%s - port %d", __func__, port->number); diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index d9fcdaedf38..683304d6061 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -89,6 +89,7 @@ struct ftdi_private { int force_rtscts; /* if non-zero, force RTS-CTS to always be enabled */ + unsigned int latency; /* latency setting in use */ spinlock_t tx_lock; /* spinlock for transmit state */ unsigned long tx_bytes; unsigned long tx_outstanding_bytes; @@ -719,8 +720,8 @@ static int ftdi_sio_port_probe(struct usb_serial_port *port); static int ftdi_sio_port_remove(struct usb_serial_port *port); static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); -static void ftdi_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp); +static void ftdi_close(struct usb_serial_port *port); +static void ftdi_dtr_rts(struct usb_serial_port *port, int on); static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); static int ftdi_write_room(struct tty_struct *tty); @@ -758,6 +759,7 @@ static struct usb_serial_driver ftdi_sio_device = { .port_remove = ftdi_sio_port_remove, .open = ftdi_open, .close = ftdi_close, + .dtr_rts = ftdi_dtr_rts, .throttle = ftdi_throttle, .unthrottle = ftdi_unthrottle, .write = ftdi_write, @@ -1037,7 +1039,54 @@ static int change_speed(struct tty_struct *tty, struct usb_serial_port *port) return rv; } +static int write_latency_timer(struct usb_serial_port *port) +{ + struct ftdi_private *priv = usb_get_serial_port_data(port); + struct usb_device *udev = port->serial->dev; + char buf[1]; + int rv = 0; + int l = priv->latency; + + if (priv->flags & ASYNC_LOW_LATENCY) + l = 1; + + dbg("%s: setting latency timer = %i", __func__, l); + + rv = usb_control_msg(udev, + usb_sndctrlpipe(udev, 0), + FTDI_SIO_SET_LATENCY_TIMER_REQUEST, + FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, + l, priv->interface, + buf, 0, WDR_TIMEOUT); + + if (rv < 0) + dev_err(&port->dev, "Unable to write latency timer: %i\n", rv); + return rv; +} + +static int read_latency_timer(struct usb_serial_port *port) +{ + struct ftdi_private *priv = usb_get_serial_port_data(port); + struct usb_device *udev = port->serial->dev; + unsigned short latency = 0; + int rv = 0; + + dbg("%s", __func__); + + rv = usb_control_msg(udev, + usb_rcvctrlpipe(udev, 0), + FTDI_SIO_GET_LATENCY_TIMER_REQUEST, + FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE, + 0, priv->interface, + (char *) &latency, 1, WDR_TIMEOUT); + + if (rv < 0) { + dev_err(&port->dev, "Unable to read latency timer: %i\n", rv); + return -EIO; + } + return latency; +} static int get_serial_info(struct usb_serial_port *port, struct serial_struct __user *retinfo) @@ -1097,6 +1146,7 @@ static int set_serial_info(struct tty_struct *tty, priv->custom_divisor = new_serial.custom_divisor; tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; + write_latency_timer(port); check_and_exit: if ((old_priv.flags & ASYNC_SPD_MASK) != @@ -1192,27 +1242,13 @@ static ssize_t show_latency_timer(struct device *dev, { struct usb_serial_port *port = to_usb_serial_port(dev); struct ftdi_private *priv = usb_get_serial_port_data(port); - struct usb_device *udev = port->serial->dev; - unsigned short latency = 0; - int rv = 0; - - - dbg("%s", __func__); - - rv = usb_control_msg(udev, - usb_rcvctrlpipe(udev, 0), - FTDI_SIO_GET_LATENCY_TIMER_REQUEST, - FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE, - 0, priv->interface, - (char *) &latency, 1, WDR_TIMEOUT); - - if (rv < 0) { - dev_err(dev, "Unable to read latency timer: %i\n", rv); - return -EIO; - } - return sprintf(buf, "%i\n", latency); + if (priv->flags & ASYNC_LOW_LATENCY) + return sprintf(buf, "1\n"); + else + return sprintf(buf, "%i\n", priv->latency); } + /* Write a new value of the latency timer, in units of milliseconds. */ static ssize_t store_latency_timer(struct device *dev, struct device_attribute *attr, const char *valbuf, @@ -1220,25 +1256,13 @@ static ssize_t store_latency_timer(struct device *dev, { struct usb_serial_port *port = to_usb_serial_port(dev); struct ftdi_private *priv = usb_get_serial_port_data(port); - struct usb_device *udev = port->serial->dev; - char buf[1]; int v = simple_strtoul(valbuf, NULL, 10); int rv = 0; - dbg("%s: setting latency timer = %i", __func__, v); - - rv = usb_control_msg(udev, - usb_sndctrlpipe(udev, 0), - FTDI_SIO_SET_LATENCY_TIMER_REQUEST, - FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, - v, priv->interface, - buf, 0, WDR_TIMEOUT); - - if (rv < 0) { - dev_err(dev, "Unable to write latency timer: %i\n", rv); + priv->latency = v; + rv = write_latency_timer(port); + if (rv < 0) return -EIO; - } - return count; } @@ -1392,6 +1416,7 @@ static int ftdi_sio_port_probe(struct usb_serial_port *port) usb_set_serial_port_data(port, priv); ftdi_determine_type(port); + read_latency_timer(port); create_sysfs_attrs(port); return 0; } @@ -1514,6 +1539,8 @@ static int ftdi_open(struct tty_struct *tty, if (tty) tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; + write_latency_timer(port); + /* No error checking for this (will get errors later anyway) */ /* See ftdi_sio.h for description of what is reset */ usb_control_msg(dev, usb_sndctrlpipe(dev, 0), @@ -1529,11 +1556,6 @@ static int ftdi_open(struct tty_struct *tty, if (tty) ftdi_set_termios(tty, port, tty->termios); - /* FIXME: Flow control might be enabled, so it should be checked - - we have no control of defaults! */ - /* Turn on RTS and DTR since we are not flow controlling by default */ - set_mctrl(port, TIOCM_DTR | TIOCM_RTS); - /* Not throttled */ spin_lock_irqsave(&priv->rx_lock, flags); priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); @@ -1558,6 +1580,30 @@ static int ftdi_open(struct tty_struct *tty, } /* ftdi_open */ +static void ftdi_dtr_rts(struct usb_serial_port *port, int on) +{ + struct ftdi_private *priv = usb_get_serial_port_data(port); + char buf[1]; + + mutex_lock(&port->serial->disc_mutex); + if (!port->serial->disconnected) { + /* Disable flow control */ + if (!on && usb_control_msg(port->serial->dev, + usb_sndctrlpipe(port->serial->dev, 0), + FTDI_SIO_SET_FLOW_CTRL_REQUEST, + FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, + 0, priv->interface, buf, 0, + WDR_TIMEOUT) < 0) { + dev_err(&port->dev, "error from flowcontrol urb\n"); + } + /* drop RTS and DTR */ + if (on) + set_mctrl(port, TIOCM_DTR | TIOCM_RTS); + else + clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); + } + mutex_unlock(&port->serial->disc_mutex); +} /* * usbserial:__serial_close only calls ftdi_close if the point is open @@ -1567,31 +1613,12 @@ static int ftdi_open(struct tty_struct *tty, * */ -static void ftdi_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void ftdi_close(struct usb_serial_port *port) { /* ftdi_close */ - unsigned int c_cflag = tty->termios->c_cflag; struct ftdi_private *priv = usb_get_serial_port_data(port); - char buf[1]; dbg("%s", __func__); - mutex_lock(&port->serial->disc_mutex); - if (c_cflag & HUPCL && !port->serial->disconnected) { - /* Disable flow control */ - if (usb_control_msg(port->serial->dev, - usb_sndctrlpipe(port->serial->dev, 0), - FTDI_SIO_SET_FLOW_CTRL_REQUEST, - FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, - 0, priv->interface, buf, 0, - WDR_TIMEOUT) < 0) { - dev_err(&port->dev, "error from flowcontrol urb\n"); - } - - /* drop RTS and DTR */ - clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); - } /* Note change no line if hupcl is off */ - mutex_unlock(&port->serial->disc_mutex); /* cancel any scheduled reading */ cancel_delayed_work_sync(&priv->rx_work); diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c index 586d30ff450..ee25a3fe3b0 100644 --- a/drivers/usb/serial/garmin_gps.c +++ b/drivers/usb/serial/garmin_gps.c @@ -993,8 +993,7 @@ static int garmin_open(struct tty_struct *tty, } -static void garmin_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void garmin_close(struct usb_serial_port *port) { struct usb_serial *serial = port->serial; struct garmin_data *garmin_data_p = usb_get_serial_port_data(port); diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index 4cec9906ccf..be82ea95672 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -184,8 +184,7 @@ int usb_serial_generic_resume(struct usb_serial *serial) } EXPORT_SYMBOL_GPL(usb_serial_generic_resume); -void usb_serial_generic_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +void usb_serial_generic_close(struct usb_serial_port *port) { dbg("%s - port %d", __func__, port->number); generic_cleanup(port); diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c index fb4a73d090f..53ef5996e33 100644 --- a/drivers/usb/serial/io_edgeport.c +++ b/drivers/usb/serial/io_edgeport.c @@ -207,8 +207,7 @@ static void edge_bulk_out_cmd_callback(struct urb *urb); /* function prototypes for the usbserial callbacks */ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); -static void edge_close(struct tty_struct *tty, struct usb_serial_port *port, - struct file *filp); +static void edge_close(struct usb_serial_port *port); static int edge_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); static int edge_write_room(struct tty_struct *tty); @@ -965,7 +964,7 @@ static int edge_open(struct tty_struct *tty, if (!edge_port->txfifo.fifo) { dbg("%s - no memory", __func__); - edge_close(tty, port, filp); + edge_close(port); return -ENOMEM; } @@ -975,7 +974,7 @@ static int edge_open(struct tty_struct *tty, if (!edge_port->write_urb) { dbg("%s - no memory", __func__); - edge_close(tty, port, filp); + edge_close(port); return -ENOMEM; } @@ -1099,8 +1098,7 @@ static void block_until_tx_empty(struct edgeport_port *edge_port) * edge_close * this function is called by the tty driver when a port is closed *****************************************************************************/ -static void edge_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void edge_close(struct usb_serial_port *port) { struct edgeport_serial *edge_serial; struct edgeport_port *edge_port; diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index 513b25e044c..eabf20eeb37 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -2009,8 +2009,7 @@ release_es_lock: return status; } -static void edge_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void edge_close(struct usb_serial_port *port) { struct edgeport_serial *edge_serial; struct edgeport_port *edge_port; diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c index cd62825a9ac..c610a99fa47 100644 --- a/drivers/usb/serial/ipaq.c +++ b/drivers/usb/serial/ipaq.c @@ -76,8 +76,7 @@ static int initial_wait; /* Function prototypes for an ipaq */ static int ipaq_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); -static void ipaq_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp); +static void ipaq_close(struct usb_serial_port *port); static int ipaq_calc_num_ports(struct usb_serial *serial); static int ipaq_startup(struct usb_serial *serial); static void ipaq_shutdown(struct usb_serial *serial); @@ -714,8 +713,7 @@ error: } -static void ipaq_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void ipaq_close(struct usb_serial_port *port) { struct ipaq_private *priv = usb_get_serial_port_data(port); diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c index da2a2b46644..29ad038b9c8 100644 --- a/drivers/usb/serial/ipw.c +++ b/drivers/usb/serial/ipw.c @@ -302,23 +302,17 @@ static int ipw_open(struct tty_struct *tty, return 0; } -static void ipw_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void ipw_dtr_rts(struct usb_serial_port *port, int on) { struct usb_device *dev = port->serial->dev; int result; - if (tty_hung_up_p(filp)) { - dbg("%s: tty_hung_up_p ...", __func__); - return; - } - /*--1: drop the dtr */ dbg("%s:dropping dtr", __func__); result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), IPW_SIO_SET_PIN, USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT, - IPW_PIN_CLRDTR, + on ? IPW_PIN_SETDTR : IPW_PIN_CLRDTR, 0, NULL, 0, @@ -332,7 +326,7 @@ static void ipw_close(struct tty_struct *tty, result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), IPW_SIO_SET_PIN, USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT, - IPW_PIN_CLRRTS, + on ? IPW_PIN_SETRTS : IPW_PIN_CLRRTS, 0, NULL, 0, @@ -340,7 +334,12 @@ static void ipw_close(struct tty_struct *tty, if (result < 0) dev_err(&port->dev, "dropping rts failed (error = %d)\n", result); +} +static void ipw_close(struct usb_serial_port *port) +{ + struct usb_device *dev = port->serial->dev; + int result; /*--3: purge */ dbg("%s:sending purge", __func__); @@ -461,6 +460,7 @@ static struct usb_serial_driver ipw_device = { .num_ports = 1, .open = ipw_open, .close = ipw_close, + .dtr_rts = ipw_dtr_rts, .port_probe = ipw_probe, .port_remove = ipw_disconnect, .write = ipw_write, diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c index 4e2cda93da5..66009b6b763 100644 --- a/drivers/usb/serial/ir-usb.c +++ b/drivers/usb/serial/ir-usb.c @@ -88,8 +88,7 @@ static int xbof = -1; static int ir_startup (struct usb_serial *serial); static int ir_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filep); -static void ir_close(struct tty_struct *tty, struct usb_serial_port *port, - struct file *filep); +static void ir_close(struct usb_serial_port *port); static int ir_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); static void ir_write_bulk_callback (struct urb *urb); @@ -346,8 +345,7 @@ static int ir_open(struct tty_struct *tty, return result; } -static void ir_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file * filp) +static void ir_close(struct usb_serial_port *port) { dbg("%s - port %d", __func__, port->number); diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c index 4473d442b2a..76a3cc327bb 100644 --- a/drivers/usb/serial/iuu_phoenix.c +++ b/drivers/usb/serial/iuu_phoenix.c @@ -40,7 +40,7 @@ static int debug; /* * Version Information */ -#define DRIVER_VERSION "v0.5" +#define DRIVER_VERSION "v0.10" #define DRIVER_DESC "Infinity USB Unlimited Phoenix driver" static struct usb_device_id id_table[] = { @@ -70,7 +70,6 @@ static void read_rxcmd_callback(struct urb *urb); struct iuu_private { spinlock_t lock; /* store irq state */ wait_queue_head_t delta_msr_wait; - u8 line_control; u8 line_status; u8 termios_initialized; int tiostatus; /* store IUART SIGNAL for tiocmget call */ @@ -651,32 +650,33 @@ static int iuu_bulk_write(struct usb_serial_port *port) unsigned long flags; int result; int i; + int buf_len; char *buf_ptr = port->write_urb->transfer_buffer; dbg("%s - enter", __func__); + spin_lock_irqsave(&priv->lock, flags); *buf_ptr++ = IUU_UART_ESC; *buf_ptr++ = IUU_UART_TX; *buf_ptr++ = priv->writelen; - memcpy(buf_ptr, priv->writebuf, - priv->writelen); + memcpy(buf_ptr, priv->writebuf, priv->writelen); + buf_len = priv->writelen; + priv->writelen = 0; + spin_unlock_irqrestore(&priv->lock, flags); if (debug == 1) { - for (i = 0; i < priv->writelen; i++) + for (i = 0; i < buf_len; i++) sprintf(priv->dbgbuf + i*2 , "%02X", priv->writebuf[i]); - priv->dbgbuf[priv->writelen+i*2] = 0; + priv->dbgbuf[buf_len+i*2] = 0; dbg("%s - writing %i chars : %s", __func__, - priv->writelen, priv->dbgbuf); + buf_len, priv->dbgbuf); } usb_fill_bulk_urb(port->write_urb, port->serial->dev, usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress), - port->write_urb->transfer_buffer, priv->writelen + 3, + port->write_urb->transfer_buffer, buf_len + 3, iuu_rxcmd, port); result = usb_submit_urb(port->write_urb, GFP_ATOMIC); - spin_lock_irqsave(&priv->lock, flags); - priv->writelen = 0; - spin_unlock_irqrestore(&priv->lock, flags); usb_serial_port_softint(port); return result; } @@ -770,14 +770,10 @@ static int iuu_uart_write(struct tty_struct *tty, struct usb_serial_port *port, return -ENOMEM; spin_lock_irqsave(&priv->lock, flags); - if (priv->writelen > 0) { - /* buffer already filled but not commited */ - spin_unlock_irqrestore(&priv->lock, flags); - return 0; - } + /* fill the buffer */ - memcpy(priv->writebuf, buf, count); - priv->writelen = count; + memcpy(priv->writebuf + priv->writelen, buf, count); + priv->writelen += count; spin_unlock_irqrestore(&priv->lock, flags); return count; @@ -819,7 +815,7 @@ static int iuu_uart_on(struct usb_serial_port *port) buf[0] = IUU_UART_ENABLE; buf[1] = (u8) ((IUU_BAUD_9600 >> 8) & 0x00FF); buf[2] = (u8) (0x00FF & IUU_BAUD_9600); - buf[3] = (u8) (0x0F0 & IUU_TWO_STOP_BITS) | (0x07 & IUU_PARITY_EVEN); + buf[3] = (u8) (0x0F0 & IUU_ONE_STOP_BIT) | (0x07 & IUU_PARITY_EVEN); status = bulk_immediate(port, buf, 4); if (status != IUU_OPERATION_OK) { @@ -946,19 +942,59 @@ static int iuu_uart_baud(struct usb_serial_port *port, u32 baud, return status; } -static int set_control_lines(struct usb_device *dev, u8 value) +static void iuu_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { - return 0; + const u32 supported_mask = CMSPAR|PARENB|PARODD; + + unsigned int cflag = tty->termios->c_cflag; + int status; + u32 actual; + u32 parity; + int csize = CS7; + int baud = 9600; /* Fixed for the moment */ + u32 newval = cflag & supported_mask; + + /* compute the parity parameter */ + parity = 0; + if (cflag & CMSPAR) { /* Using mark space */ + if (cflag & PARODD) + parity |= IUU_PARITY_SPACE; + else + parity |= IUU_PARITY_MARK; + } else if (!(cflag & PARENB)) { + parity |= IUU_PARITY_NONE; + csize = CS8; + } else if (cflag & PARODD) + parity |= IUU_PARITY_ODD; + else + parity |= IUU_PARITY_EVEN; + + parity |= (cflag & CSTOPB ? IUU_TWO_STOP_BITS : IUU_ONE_STOP_BIT); + + /* set it */ + status = iuu_uart_baud(port, + (clockmode == 2) ? 16457 : 9600 * boost / 100, + &actual, parity); + + /* set the termios value to the real one, so the user now what has + * changed. We support few fields so its easies to copy the old hw + * settings back over and then adjust them + */ + if (old_termios) + tty_termios_copy_hw(tty->termios, old_termios); + if (status != 0) /* Set failed - return old bits */ + return; + /* Re-encode speed, parity and csize */ + tty_encode_baud_rate(tty, baud, baud); + tty->termios->c_cflag &= ~(supported_mask|CSIZE); + tty->termios->c_cflag |= newval | csize; } -static void iuu_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void iuu_close(struct usb_serial_port *port) { /* iuu_led (port,255,0,0,0); */ struct usb_serial *serial; - struct iuu_private *priv = usb_get_serial_port_data(port); - unsigned long flags; - unsigned int c_cflag; serial = port->serial; if (!serial) @@ -968,17 +1004,6 @@ static void iuu_close(struct tty_struct *tty, iuu_uart_off(port); if (serial->dev) { - if (tty) { - c_cflag = tty->termios->c_cflag; - if (c_cflag & HUPCL) { - /* drop DTR and RTS */ - priv = usb_get_serial_port_data(port); - spin_lock_irqsave(&priv->lock, flags); - priv->line_control = 0; - spin_unlock_irqrestore(&priv->lock, flags); - set_control_lines(port->serial->dev, 0); - } - } /* free writebuf */ /* shutdown our urbs */ dbg("%s - shutting down urbs", __func__); @@ -1154,7 +1179,7 @@ static int iuu_open(struct tty_struct *tty, if (result) { dev_err(&port->dev, "%s - failed submitting read urb," " error %d\n", __func__, result); - iuu_close(tty, port, NULL); + iuu_close(port); return -EPROTO; } else { dbg("%s - rxcmd OK", __func__); @@ -1175,6 +1200,7 @@ static struct usb_serial_driver iuu_device = { .read_bulk_callback = iuu_uart_read_callback, .tiocmget = iuu_tiocmget, .tiocmset = iuu_tiocmset, + .set_termios = iuu_set_termios, .attach = iuu_startup, .shutdown = iuu_shutdown, }; diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index 00daa8f7759..f1195a98f31 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -1298,8 +1298,16 @@ static inline void stop_urb(struct urb *urb) usb_kill_urb(urb); } -static void keyspan_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void keyspan_dtr_rts(struct usb_serial_port *port, int on) +{ + struct keyspan_port_private *p_priv = usb_get_serial_port_data(port); + + p_priv->rts_state = on; + p_priv->dtr_state = on; + keyspan_send_setup(port, 0); +} + +static void keyspan_close(struct usb_serial_port *port) { int i; struct usb_serial *serial = port->serial; @@ -1336,7 +1344,6 @@ static void keyspan_close(struct tty_struct *tty, stop_urb(p_priv->out_urbs[i]); } } - tty_port_tty_set(&port->port, NULL); } /* download the firmware to a pre-renumeration device */ diff --git a/drivers/usb/serial/keyspan.h b/drivers/usb/serial/keyspan.h index 38b4582e073..0d4569b6076 100644 --- a/drivers/usb/serial/keyspan.h +++ b/drivers/usb/serial/keyspan.h @@ -38,9 +38,8 @@ static int keyspan_open (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); -static void keyspan_close (struct tty_struct *tty, - struct usb_serial_port *port, - struct file *filp); +static void keyspan_close (struct usb_serial_port *port); +static void keyspan_dtr_rts (struct usb_serial_port *port, int on); static int keyspan_startup (struct usb_serial *serial); static void keyspan_shutdown (struct usb_serial *serial); static int keyspan_write_room (struct tty_struct *tty); @@ -562,6 +561,7 @@ static struct usb_serial_driver keyspan_1port_device = { .num_ports = 1, .open = keyspan_open, .close = keyspan_close, + .dtr_rts = keyspan_dtr_rts, .write = keyspan_write, .write_room = keyspan_write_room, .set_termios = keyspan_set_termios, @@ -582,6 +582,7 @@ static struct usb_serial_driver keyspan_2port_device = { .num_ports = 2, .open = keyspan_open, .close = keyspan_close, + .dtr_rts = keyspan_dtr_rts, .write = keyspan_write, .write_room = keyspan_write_room, .set_termios = keyspan_set_termios, @@ -602,6 +603,7 @@ static struct usb_serial_driver keyspan_4port_device = { .num_ports = 4, .open = keyspan_open, .close = keyspan_close, + .dtr_rts = keyspan_dtr_rts, .write = keyspan_write, .write_room = keyspan_write_room, .set_termios = keyspan_set_termios, diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c index bf1ae247da6..ab769dbea1b 100644 --- a/drivers/usb/serial/keyspan_pda.c +++ b/drivers/usb/serial/keyspan_pda.c @@ -651,6 +651,35 @@ static int keyspan_pda_chars_in_buffer(struct tty_struct *tty) } +static void keyspan_pda_dtr_rts(struct usb_serial_port *port, int on) +{ + struct usb_serial *serial = port->serial; + + if (serial->dev) { + if (on) + keyspan_pda_set_modem_info(serial, (1<<7) | (1<< 2)); + else + keyspan_pda_set_modem_info(serial, 0); + } +} + +static int keyspan_pda_carrier_raised(struct usb_serial_port *port) +{ + struct usb_serial *serial = port->serial; + unsigned char modembits; + + /* If we can read the modem status and the DCD is low then + carrier is not raised yet */ + if (keyspan_pda_get_modem_info(serial, &modembits) >= 0) { + if (!(modembits & (1>>6))) + return 0; + } + /* Carrier raised, or we failed (eg disconnected) so + progress accordingly */ + return 1; +} + + static int keyspan_pda_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp) { @@ -682,13 +711,6 @@ static int keyspan_pda_open(struct tty_struct *tty, priv->tx_room = room; priv->tx_throttled = room ? 0 : 1; - /* the normal serial device seems to always turn on DTR and RTS here, - so do the same */ - if (tty && (tty->termios->c_cflag & CBAUD)) - keyspan_pda_set_modem_info(serial, (1<<7) | (1<<2)); - else - keyspan_pda_set_modem_info(serial, 0); - /*Start reading from the device*/ port->interrupt_in_urb->dev = serial->dev; rc = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); @@ -700,19 +722,11 @@ static int keyspan_pda_open(struct tty_struct *tty, error: return rc; } - - -static void keyspan_pda_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void keyspan_pda_close(struct usb_serial_port *port) { struct usb_serial *serial = port->serial; if (serial->dev) { - /* the normal serial device seems to always shut - off DTR and RTS now */ - if (tty->termios->c_cflag & HUPCL) - keyspan_pda_set_modem_info(serial, 0); - /* shutdown our bulk reads and writes */ usb_kill_urb(port->write_urb); usb_kill_urb(port->interrupt_in_urb); @@ -839,6 +853,8 @@ static struct usb_serial_driver keyspan_pda_device = { .usb_driver = &keyspan_pda_driver, .id_table = id_table_std, .num_ports = 1, + .dtr_rts = keyspan_pda_dtr_rts, + .carrier_raised = keyspan_pda_carrier_raised, .open = keyspan_pda_open, .close = keyspan_pda_close, .write = keyspan_pda_write, diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c index fcd9082f3e7..fa817c66b3e 100644 --- a/drivers/usb/serial/kl5kusb105.c +++ b/drivers/usb/serial/kl5kusb105.c @@ -76,8 +76,7 @@ static int klsi_105_startup(struct usb_serial *serial); static void klsi_105_shutdown(struct usb_serial *serial); static int klsi_105_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); -static void klsi_105_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp); +static void klsi_105_close(struct usb_serial_port *port); static int klsi_105_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); static void klsi_105_write_bulk_callback(struct urb *urb); @@ -447,8 +446,7 @@ exit: } /* klsi_105_open */ -static void klsi_105_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void klsi_105_close(struct usb_serial_port *port) { struct klsi_105_private *priv = usb_get_serial_port_data(port); int rc; diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c index c148544953b..6b570498287 100644 --- a/drivers/usb/serial/kobil_sct.c +++ b/drivers/usb/serial/kobil_sct.c @@ -72,8 +72,7 @@ static int kobil_startup(struct usb_serial *serial); static void kobil_shutdown(struct usb_serial *serial); static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); -static void kobil_close(struct tty_struct *tty, struct usb_serial_port *port, - struct file *filp); +static void kobil_close(struct usb_serial_port *port); static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); static int kobil_write_room(struct tty_struct *tty); @@ -209,7 +208,7 @@ static void kobil_shutdown(struct usb_serial *serial) for (i = 0; i < serial->num_ports; ++i) { while (serial->port[i]->port.count > 0) - kobil_close(NULL, serial->port[i], NULL); + kobil_close(serial->port[i]); kfree(usb_get_serial_port_data(serial->port[i])); usb_set_serial_port_data(serial->port[i], NULL); } @@ -346,11 +345,11 @@ static int kobil_open(struct tty_struct *tty, } -static void kobil_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void kobil_close(struct usb_serial_port *port) { dbg("%s - port %d", __func__, port->number); + /* FIXME: Add rts/dtr methods */ if (port->write_urb) { usb_kill_urb(port->write_urb); usb_free_urb(port->write_urb); diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c index 82930a7d509..873795548fc 100644 --- a/drivers/usb/serial/mct_u232.c +++ b/drivers/usb/serial/mct_u232.c @@ -95,8 +95,8 @@ static int mct_u232_startup(struct usb_serial *serial); static void mct_u232_shutdown(struct usb_serial *serial); static int mct_u232_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); -static void mct_u232_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp); +static void mct_u232_close(struct usb_serial_port *port); +static void mct_u232_dtr_rts(struct usb_serial_port *port, int on); static void mct_u232_read_int_callback(struct urb *urb); static void mct_u232_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old); @@ -140,6 +140,7 @@ static struct usb_serial_driver mct_u232_device = { .num_ports = 1, .open = mct_u232_open, .close = mct_u232_close, + .dtr_rts = mct_u232_dtr_rts, .throttle = mct_u232_throttle, .unthrottle = mct_u232_unthrottle, .read_int_callback = mct_u232_read_int_callback, @@ -496,29 +497,29 @@ error: return retval; } /* mct_u232_open */ - -static void mct_u232_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void mct_u232_dtr_rts(struct usb_serial_port *port, int on) { - unsigned int c_cflag; unsigned int control_state; struct mct_u232_private *priv = usb_get_serial_port_data(port); - dbg("%s port %d", __func__, port->number); - if (tty) { - c_cflag = tty->termios->c_cflag; - mutex_lock(&port->serial->disc_mutex); - if (c_cflag & HUPCL && !port->serial->disconnected) { - /* drop DTR and RTS */ - spin_lock_irq(&priv->lock); + mutex_lock(&port->serial->disc_mutex); + if (!port->serial->disconnected) { + /* drop DTR and RTS */ + spin_lock_irq(&priv->lock); + if (on) + priv->control_state |= TIOCM_DTR | TIOCM_RTS; + else priv->control_state &= ~(TIOCM_DTR | TIOCM_RTS); - control_state = priv->control_state; - spin_unlock_irq(&priv->lock); - mct_u232_set_modem_ctrl(port->serial, control_state); - } - mutex_unlock(&port->serial->disc_mutex); + control_state = priv->control_state; + spin_unlock_irq(&priv->lock); + mct_u232_set_modem_ctrl(port->serial, control_state); } + mutex_unlock(&port->serial->disc_mutex); +} +static void mct_u232_close(struct usb_serial_port *port) +{ + dbg("%s port %d", __func__, port->number); if (port->serial->dev) { /* shutdown our urbs */ diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index 24e3b5d4b4d..9e1a013ee7f 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -533,8 +533,7 @@ static int mos7720_chars_in_buffer(struct tty_struct *tty) return chars; } -static void mos7720_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void mos7720_close(struct usb_serial_port *port) { struct usb_serial *serial; struct moschip_port *mos7720_port; diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 84fb1dcd30d..10b78a37214 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -1135,54 +1135,12 @@ static int mos7840_chars_in_buffer(struct tty_struct *tty) } -/************************************************************************ - * - * mos7840_block_until_tx_empty - * - * This function will block the close until one of the following: - * 1. TX count are 0 - * 2. The mos7840 has stopped - * 3. A timeout of 3 seconds without activity has expired - * - ************************************************************************/ -static void mos7840_block_until_tx_empty(struct tty_struct *tty, - struct moschip_port *mos7840_port) -{ - int timeout = HZ / 10; - int wait = 30; - int count; - - while (1) { - - count = mos7840_chars_in_buffer(tty); - - /* Check for Buffer status */ - if (count <= 0) - return; - - /* Block the thread for a while */ - interruptible_sleep_on_timeout(&mos7840_port->wait_chase, - timeout); - - /* No activity.. count down section */ - wait--; - if (wait == 0) { - dbg("%s - TIMEOUT", __func__); - return; - } else { - /* Reset timeout value back to seconds */ - wait = 30; - } - } -} - /***************************************************************************** * mos7840_close * this function is called by the tty driver when a port is closed *****************************************************************************/ -static void mos7840_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void mos7840_close(struct usb_serial_port *port) { struct usb_serial *serial; struct moschip_port *mos7840_port; @@ -1223,10 +1181,6 @@ static void mos7840_close(struct tty_struct *tty, } } - if (serial->dev) - /* flush and block until tx is empty */ - mos7840_block_until_tx_empty(tty, mos7840_port); - /* While closing port, shutdown all bulk read, write * * and interrupt read if they exists */ if (serial->dev) { diff --git a/drivers/usb/serial/navman.c b/drivers/usb/serial/navman.c index bcdcbb82270..f5f3751a888 100644 --- a/drivers/usb/serial/navman.c +++ b/drivers/usb/serial/navman.c @@ -98,8 +98,7 @@ static int navman_open(struct tty_struct *tty, return result; } -static void navman_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void navman_close(struct usb_serial_port *port) { dbg("%s - port %d", __func__, port->number); diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c index df653971272..1104617334f 100644 --- a/drivers/usb/serial/omninet.c +++ b/drivers/usb/serial/omninet.c @@ -66,8 +66,7 @@ static int debug; /* function prototypes */ static int omninet_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); -static void omninet_close(struct tty_struct *tty, struct usb_serial_port *port, - struct file *filp); +static void omninet_close(struct usb_serial_port *port); static void omninet_read_bulk_callback(struct urb *urb); static void omninet_write_bulk_callback(struct urb *urb); static int omninet_write(struct tty_struct *tty, struct usb_serial_port *port, @@ -189,8 +188,7 @@ static int omninet_open(struct tty_struct *tty, return result; } -static void omninet_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void omninet_close(struct usb_serial_port *port) { dbg("%s - port %d", __func__, port->number); usb_kill_urb(port->read_urb); diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c index b500ad10b75..c20480aa975 100644 --- a/drivers/usb/serial/opticon.c +++ b/drivers/usb/serial/opticon.c @@ -173,8 +173,7 @@ static int opticon_open(struct tty_struct *tty, struct usb_serial_port *port, return result; } -static void opticon_close(struct tty_struct *tty, struct usb_serial_port *port, - struct file *filp) +static void opticon_close(struct usb_serial_port *port) { struct opticon_private *priv = usb_get_serial_data(port->serial); diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 7817b82889c..a16d69fadba 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -45,8 +45,9 @@ /* Function prototypes */ static int option_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); -static void option_close(struct tty_struct *tty, struct usb_serial_port *port, - struct file *filp); +static void option_close(struct usb_serial_port *port); +static void option_dtr_rts(struct usb_serial_port *port, int on); + static int option_startup(struct usb_serial *serial); static void option_shutdown(struct usb_serial *serial); static int option_write_room(struct tty_struct *tty); @@ -61,7 +62,7 @@ static void option_set_termios(struct tty_struct *tty, static int option_tiocmget(struct tty_struct *tty, struct file *file); static int option_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); -static int option_send_setup(struct tty_struct *tty, struct usb_serial_port *port); +static int option_send_setup(struct usb_serial_port *port); static int option_suspend(struct usb_serial *serial, pm_message_t message); static int option_resume(struct usb_serial *serial); @@ -551,6 +552,7 @@ static struct usb_serial_driver option_1port_device = { .num_ports = 1, .open = option_open, .close = option_close, + .dtr_rts = option_dtr_rts, .write = option_write, .write_room = option_write_room, .chars_in_buffer = option_chars_in_buffer, @@ -630,7 +632,7 @@ static void option_set_termios(struct tty_struct *tty, dbg("%s", __func__); /* Doesn't support option setting */ tty_termios_copy_hw(tty->termios, old_termios); - option_send_setup(tty, port); + option_send_setup(port); } static int option_tiocmget(struct tty_struct *tty, struct file *file) @@ -669,7 +671,7 @@ static int option_tiocmset(struct tty_struct *tty, struct file *file, portdata->rts_state = 0; if (clear & TIOCM_DTR) portdata->dtr_state = 0; - return option_send_setup(tty, port); + return option_send_setup(port); } /* Write */ @@ -897,10 +899,6 @@ static int option_open(struct tty_struct *tty, dbg("%s", __func__); - /* Set some sane defaults */ - portdata->rts_state = 1; - portdata->dtr_state = 1; - /* Reset low level data toggle and start reading from endpoints */ for (i = 0; i < N_IN_URB; i++) { urb = portdata->in_urbs[i]; @@ -936,37 +934,43 @@ static int option_open(struct tty_struct *tty, usb_pipeout(urb->pipe), 0); */ } - option_send_setup(tty, port); + option_send_setup(port); return 0; } -static void option_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void option_dtr_rts(struct usb_serial_port *port, int on) { - int i; struct usb_serial *serial = port->serial; struct option_port_private *portdata; dbg("%s", __func__); portdata = usb_get_serial_port_data(port); + mutex_lock(&serial->disc_mutex); + portdata->rts_state = on; + portdata->dtr_state = on; + if (serial->dev) + option_send_setup(port); + mutex_unlock(&serial->disc_mutex); +} - portdata->rts_state = 0; - portdata->dtr_state = 0; - if (serial->dev) { - mutex_lock(&serial->disc_mutex); - if (!serial->disconnected) - option_send_setup(tty, port); - mutex_unlock(&serial->disc_mutex); +static void option_close(struct usb_serial_port *port) +{ + int i; + struct usb_serial *serial = port->serial; + struct option_port_private *portdata; + + dbg("%s", __func__); + portdata = usb_get_serial_port_data(port); + if (serial->dev) { /* Stop reading/writing urbs */ for (i = 0; i < N_IN_URB; i++) usb_kill_urb(portdata->in_urbs[i]); for (i = 0; i < N_OUT_URB; i++) usb_kill_urb(portdata->out_urbs[i]); } - tty_port_tty_set(&port->port, NULL); } /* Helper functions used by option_setup_urbs */ @@ -1032,28 +1036,24 @@ static void option_setup_urbs(struct usb_serial *serial) * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN * CDC. */ -static int option_send_setup(struct tty_struct *tty, - struct usb_serial_port *port) +static int option_send_setup(struct usb_serial_port *port) { struct usb_serial *serial = port->serial; struct option_port_private *portdata; int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber; + int val = 0; dbg("%s", __func__); portdata = usb_get_serial_port_data(port); - if (tty) { - int val = 0; - if (portdata->dtr_state) - val |= 0x01; - if (portdata->rts_state) - val |= 0x02; + if (portdata->dtr_state) + val |= 0x01; + if (portdata->rts_state) + val |= 0x02; - return usb_control_msg(serial->dev, - usb_rcvctrlpipe(serial->dev, 0), - 0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT); - } - return 0; + return usb_control_msg(serial->dev, + usb_rcvctrlpipe(serial->dev, 0), + 0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT); } static int option_startup(struct usb_serial *serial) diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c index ba551f00f16..7de54781fe6 100644 --- a/drivers/usb/serial/oti6858.c +++ b/drivers/usb/serial/oti6858.c @@ -143,8 +143,7 @@ struct oti6858_control_pkt { /* function prototypes */ static int oti6858_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); -static void oti6858_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp); +static void oti6858_close(struct usb_serial_port *port); static void oti6858_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old); static int oti6858_ioctl(struct tty_struct *tty, struct file *file, @@ -622,67 +621,30 @@ static int oti6858_open(struct tty_struct *tty, if (result != 0) { dev_err(&port->dev, "%s(): usb_submit_urb() failed" " with error %d\n", __func__, result); - oti6858_close(tty, port, NULL); + oti6858_close(port); return -EPROTO; } /* setup termios */ if (tty) oti6858_set_termios(tty, port, &tmp_termios); - + port->port.drain_delay = 256; /* FIXME: check the FIFO length */ return 0; } -static void oti6858_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void oti6858_close(struct usb_serial_port *port) { struct oti6858_private *priv = usb_get_serial_port_data(port); unsigned long flags; - long timeout; - wait_queue_t wait; dbg("%s(port = %d)", __func__, port->number); - /* wait for data to drain from the buffer */ spin_lock_irqsave(&priv->lock, flags); - timeout = 30 * HZ; /* PL2303_CLOSING_WAIT */ - init_waitqueue_entry(&wait, current); - add_wait_queue(&tty->write_wait, &wait); - dbg("%s(): entering wait loop", __func__); - for (;;) { - set_current_state(TASK_INTERRUPTIBLE); - if (oti6858_buf_data_avail(priv->buf) == 0 - || timeout == 0 || signal_pending(current) - || port->serial->disconnected) - break; - spin_unlock_irqrestore(&priv->lock, flags); - timeout = schedule_timeout(timeout); - spin_lock_irqsave(&priv->lock, flags); - } - set_current_state(TASK_RUNNING); - remove_wait_queue(&tty->write_wait, &wait); - dbg("%s(): after wait loop", __func__); - /* clear out any remaining data in the buffer */ oti6858_buf_clear(priv->buf); spin_unlock_irqrestore(&priv->lock, flags); - /* wait for characters to drain from the device */ - /* (this is long enough for the entire 256 byte */ - /* pl2303 hardware buffer to drain with no flow */ - /* control for data rates of 1200 bps or more, */ - /* for lower rates we should really know how much */ - /* data is in the buffer to compute a delay */ - /* that is not unnecessarily long) */ - /* FIXME - bps = tty_get_baud_rate(tty); - if (bps > 1200) - timeout = max((HZ*2560)/bps,HZ/10); - else - */ - timeout = 2*HZ; - schedule_timeout_interruptible(timeout); - dbg("%s(): after schedule_timeout_interruptible()", __func__); + dbg("%s(): after buf_clear()", __func__); /* cancel scheduled setup */ cancel_delayed_work(&priv->delayed_setup_work); @@ -694,15 +656,6 @@ static void oti6858_close(struct tty_struct *tty, usb_kill_urb(port->write_urb); usb_kill_urb(port->read_urb); usb_kill_urb(port->interrupt_in_urb); - - /* - if (tty && (tty->termios->c_cflag) & HUPCL) { - // drop DTR and RTS - spin_lock_irqsave(&priv->lock, flags); - priv->pending_setup.control &= ~CONTROL_MASK; - spin_unlock_irqrestore(&priv->lock, flags); - } - */ } static int oti6858_tiocmset(struct tty_struct *tty, struct file *file, diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 751a533a434..e02dc3d643c 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -652,69 +652,41 @@ static void pl2303_set_termios(struct tty_struct *tty, kfree(buf); } -static void pl2303_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void pl2303_dtr_rts(struct usb_serial_port *port, int on) +{ + struct pl2303_private *priv = usb_get_serial_port_data(port); + unsigned long flags; + u8 control; + + spin_lock_irqsave(&priv->lock, flags); + /* Change DTR and RTS */ + if (on) + priv->line_control |= (CONTROL_DTR | CONTROL_RTS); + else + priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS); + control = priv->line_control; + spin_unlock_irqrestore(&priv->lock, flags); + set_control_lines(port->serial->dev, control); +} + +static void pl2303_close(struct usb_serial_port *port) { struct pl2303_private *priv = usb_get_serial_port_data(port); unsigned long flags; - unsigned int c_cflag; - int bps; - long timeout; - wait_queue_t wait; dbg("%s - port %d", __func__, port->number); - /* wait for data to drain from the buffer */ spin_lock_irqsave(&priv->lock, flags); - timeout = PL2303_CLOSING_WAIT; - init_waitqueue_entry(&wait, current); - add_wait_queue(&tty->write_wait, &wait); - for (;;) { - set_current_state(TASK_INTERRUPTIBLE); - if (pl2303_buf_data_avail(priv->buf) == 0 || - timeout == 0 || signal_pending(current) || - port->serial->disconnected) - break; - spin_unlock_irqrestore(&priv->lock, flags); - timeout = schedule_timeout(timeout); - spin_lock_irqsave(&priv->lock, flags); - } - set_current_state(TASK_RUNNING); - remove_wait_queue(&tty->write_wait, &wait); /* clear out any remaining data in the buffer */ pl2303_buf_clear(priv->buf); spin_unlock_irqrestore(&priv->lock, flags); - /* wait for characters to drain from the device */ - /* (this is long enough for the entire 256 byte */ - /* pl2303 hardware buffer to drain with no flow */ - /* control for data rates of 1200 bps or more, */ - /* for lower rates we should really know how much */ - /* data is in the buffer to compute a delay */ - /* that is not unnecessarily long) */ - bps = tty_get_baud_rate(tty); - if (bps > 1200) - timeout = max((HZ*2560)/bps, HZ/10); - else - timeout = 2*HZ; - schedule_timeout_interruptible(timeout); - /* shutdown our urbs */ dbg("%s - shutting down urbs", __func__); usb_kill_urb(port->write_urb); usb_kill_urb(port->read_urb); usb_kill_urb(port->interrupt_in_urb); - if (tty) { - c_cflag = tty->termios->c_cflag; - if (c_cflag & HUPCL) { - /* drop DTR and RTS */ - spin_lock_irqsave(&priv->lock, flags); - priv->line_control = 0; - spin_unlock_irqrestore(&priv->lock, flags); - set_control_lines(port->serial->dev, 0); - } - } } static int pl2303_open(struct tty_struct *tty, @@ -748,7 +720,7 @@ static int pl2303_open(struct tty_struct *tty, if (result) { dev_err(&port->dev, "%s - failed submitting read urb," " error %d\n", __func__, result); - pl2303_close(tty, port, NULL); + pl2303_close(port); return -EPROTO; } @@ -758,9 +730,10 @@ static int pl2303_open(struct tty_struct *tty, if (result) { dev_err(&port->dev, "%s - failed submitting interrupt urb," " error %d\n", __func__, result); - pl2303_close(tty, port, NULL); + pl2303_close(port); return -EPROTO; } + port->port.drain_delay = 256; return 0; } @@ -821,6 +794,14 @@ static int pl2303_tiocmget(struct tty_struct *tty, struct file *file) return result; } +static int pl2303_carrier_raised(struct usb_serial_port *port) +{ + struct pl2303_private *priv = usb_get_serial_port_data(port); + if (priv->line_status & UART_DCD) + return 1; + return 0; +} + static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) { struct pl2303_private *priv = usb_get_serial_port_data(port); @@ -1125,6 +1106,8 @@ static struct usb_serial_driver pl2303_device = { .num_ports = 1, .open = pl2303_open, .close = pl2303_close, + .dtr_rts = pl2303_dtr_rts, + .carrier_raised = pl2303_carrier_raised, .write = pl2303_write, .ioctl = pl2303_ioctl, .break_ctl = pl2303_break_ctl, diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index 913225c6161..17ac34f4d66 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -26,12 +26,10 @@ #include <linux/module.h> #include <linux/usb.h> #include <linux/usb/serial.h> -#include <linux/usb/ch9.h> #define SWIMS_USB_REQUEST_SetPower 0x00 #define SWIMS_USB_REQUEST_SetNmea 0x07 -/* per port private data */ #define N_IN_URB 4 #define N_OUT_URB 4 #define IN_BUFLEN 4096 @@ -39,6 +37,12 @@ static int debug; static int nmea; +/* Used in interface blacklisting */ +struct sierra_iface_info { + const u32 infolen; /* number of interface numbers on blacklist */ + const u8 *ifaceinfo; /* pointer to the array holding the numbers */ +}; + static int sierra_set_power_state(struct usb_device *udev, __u16 swiState) { int result; @@ -85,6 +89,23 @@ static int sierra_calc_num_ports(struct usb_serial *serial) return result; } +static int is_blacklisted(const u8 ifnum, + const struct sierra_iface_info *blacklist) +{ + const u8 *info; + int i; + + if (blacklist) { + info = blacklist->ifaceinfo; + + for (i = 0; i < blacklist->infolen; i++) { + if (info[i] == ifnum) + return 1; + } + } + return 0; +} + static int sierra_calc_interface(struct usb_serial *serial) { int interface; @@ -153,9 +174,25 @@ static int sierra_probe(struct usb_serial *serial, */ usb_set_serial_data(serial, (void *)num_ports); + /* ifnum could have changed - by calling usb_set_interface */ + ifnum = sierra_calc_interface(serial); + + if (is_blacklisted(ifnum, + (struct sierra_iface_info *)id->driver_info)) { + dev_dbg(&serial->dev->dev, + "Ignoring blacklisted interface #%d\n", ifnum); + return -ENODEV; + } + return result; } +static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11 }; +static const struct sierra_iface_info direct_ip_interface_blacklist = { + .infolen = ARRAY_SIZE(direct_ip_non_serial_ifaces), + .ifaceinfo = direct_ip_non_serial_ifaces, +}; + static struct usb_device_id id_table [] = { { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ @@ -188,9 +225,11 @@ static struct usb_device_id id_table [] = { { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */ { USB_DEVICE(0x1199, 0x683A) }, /* Sierra Wireless MC8785 */ { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite */ - { USB_DEVICE(0x1199, 0x683C) }, /* Sierra Wireless MC8790 */ - { USB_DEVICE(0x1199, 0x683D) }, /* Sierra Wireless MC8790 */ - { USB_DEVICE(0x1199, 0x683E) }, /* Sierra Wireless MC8790 */ + /* Sierra Wireless MC8790, MC8791, MC8792 Composite */ + { USB_DEVICE(0x1199, 0x683C) }, + { USB_DEVICE(0x1199, 0x683D) }, /* Sierra Wireless MC8791 Composite */ + /* Sierra Wireless MC8790, MC8791, MC8792 */ + { USB_DEVICE(0x1199, 0x683E) }, { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ @@ -211,6 +250,10 @@ static struct usb_device_id id_table [] = { { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */ + { USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modems */ + .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist + }, + { } }; MODULE_DEVICE_TABLE(usb, id_table); @@ -229,7 +272,6 @@ struct sierra_port_private { /* Input endpoints and buffers for this port */ struct urb *in_urbs[N_IN_URB]; - char *in_buffer[N_IN_URB]; /* Settings for the port */ int rts_state; /* Handshaking pins (outputs) */ @@ -240,57 +282,50 @@ struct sierra_port_private { int ri_state; }; -static int sierra_send_setup(struct tty_struct *tty, - struct usb_serial_port *port) +static int sierra_send_setup(struct usb_serial_port *port) { struct usb_serial *serial = port->serial; struct sierra_port_private *portdata; __u16 interface = 0; + int val = 0; dev_dbg(&port->dev, "%s", __func__); portdata = usb_get_serial_port_data(port); - if (tty) { - int val = 0; - if (portdata->dtr_state) - val |= 0x01; - if (portdata->rts_state) - val |= 0x02; - - /* If composite device then properly report interface */ - if (serial->num_ports == 1) { - interface = sierra_calc_interface(serial); - - /* Control message is sent only to interfaces with - * interrupt_in endpoints - */ - if (port->interrupt_in_urb) { - /* send control message */ - return usb_control_msg(serial->dev, - usb_rcvctrlpipe(serial->dev, 0), - 0x22, 0x21, val, interface, - NULL, 0, USB_CTRL_SET_TIMEOUT); - } - } - - /* Otherwise the need to do non-composite mapping */ - else { - if (port->bulk_out_endpointAddress == 2) - interface = 0; - else if (port->bulk_out_endpointAddress == 4) - interface = 1; - else if (port->bulk_out_endpointAddress == 5) - interface = 2; + if (portdata->dtr_state) + val |= 0x01; + if (portdata->rts_state) + val |= 0x02; + /* If composite device then properly report interface */ + if (serial->num_ports == 1) { + interface = sierra_calc_interface(serial); + /* Control message is sent only to interfaces with + * interrupt_in endpoints + */ + if (port->interrupt_in_urb) { + /* send control message */ return usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), 0x22, 0x21, val, interface, NULL, 0, USB_CTRL_SET_TIMEOUT); - } } + /* Otherwise the need to do non-composite mapping */ + else { + if (port->bulk_out_endpointAddress == 2) + interface = 0; + else if (port->bulk_out_endpointAddress == 4) + interface = 1; + else if (port->bulk_out_endpointAddress == 5) + interface = 2; + return usb_control_msg(serial->dev, + usb_rcvctrlpipe(serial->dev, 0), + 0x22, 0x21, val, interface, + NULL, 0, USB_CTRL_SET_TIMEOUT); + } return 0; } @@ -299,7 +334,7 @@ static void sierra_set_termios(struct tty_struct *tty, { dev_dbg(&port->dev, "%s", __func__); tty_termios_copy_hw(tty->termios, old_termios); - sierra_send_setup(tty, port); + sierra_send_setup(port); } static int sierra_tiocmget(struct tty_struct *tty, struct file *file) @@ -338,7 +373,18 @@ static int sierra_tiocmset(struct tty_struct *tty, struct file *file, portdata->rts_state = 0; if (clear & TIOCM_DTR) portdata->dtr_state = 0; - return sierra_send_setup(tty, port); + return sierra_send_setup(port); +} + +static void sierra_release_urb(struct urb *urb) +{ + struct usb_serial_port *port; + if (urb) { + port = urb->context; + dev_dbg(&port->dev, "%s: %p\n", __func__, urb); + kfree(urb->transfer_buffer); + usb_free_urb(urb); + } } static void sierra_outdat_callback(struct urb *urb) @@ -465,7 +511,7 @@ static void sierra_indat_callback(struct urb *urb) " received", __func__); /* Resubmit urb so we continue receiving */ - if (port->port.count && status != -ESHUTDOWN) { + if (port->port.count && status != -ESHUTDOWN && status != -EPERM) { err = usb_submit_urb(urb, GFP_ATOMIC); if (err) dev_err(&port->dev, "resubmit read urb failed." @@ -557,67 +603,99 @@ static int sierra_write_room(struct tty_struct *tty) return 2048; } -static int sierra_open(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void sierra_stop_rx_urbs(struct usb_serial_port *port) { - struct sierra_port_private *portdata; - struct usb_serial *serial = port->serial; int i; - struct urb *urb; - int result; + struct sierra_port_private *portdata = usb_get_serial_port_data(port); - portdata = usb_get_serial_port_data(port); + for (i = 0; i < ARRAY_SIZE(portdata->in_urbs); i++) + usb_kill_urb(portdata->in_urbs[i]); - dev_dbg(&port->dev, "%s", __func__); + usb_kill_urb(port->interrupt_in_urb); +} - /* Set some sane defaults */ - portdata->rts_state = 1; - portdata->dtr_state = 1; +static int sierra_submit_rx_urbs(struct usb_serial_port *port, gfp_t mem_flags) +{ + int ok_cnt; + int err = -EINVAL; + int i; + struct urb *urb; + struct sierra_port_private *portdata = usb_get_serial_port_data(port); - /* Reset low level data toggle and start reading from endpoints */ - for (i = 0; i < N_IN_URB; i++) { + ok_cnt = 0; + for (i = 0; i < ARRAY_SIZE(portdata->in_urbs); i++) { urb = portdata->in_urbs[i]; if (!urb) continue; - if (urb->dev != serial->dev) { - dev_dbg(&port->dev, "%s: dev %p != %p", - __func__, urb->dev, serial->dev); - continue; + err = usb_submit_urb(urb, mem_flags); + if (err) { + dev_err(&port->dev, "%s: submit urb failed: %d\n", + __func__, err); + } else { + ok_cnt++; } + } - /* - * make sure endpoint data toggle is synchronized with the - * device - */ - usb_clear_halt(urb->dev, urb->pipe); - - result = usb_submit_urb(urb, GFP_KERNEL); - if (result) { - dev_err(&port->dev, "submit urb %d failed (%d) %d\n", - i, result, urb->transfer_buffer_length); + if (ok_cnt && port->interrupt_in_urb) { + err = usb_submit_urb(port->interrupt_in_urb, mem_flags); + if (err) { + dev_err(&port->dev, "%s: submit intr urb failed: %d\n", + __func__, err); } } - sierra_send_setup(tty, port); + if (ok_cnt > 0) /* at least one rx urb submitted */ + return 0; + else + return err; +} + +static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint, + int dir, void *ctx, int len, + gfp_t mem_flags, + usb_complete_t callback) +{ + struct urb *urb; + u8 *buf; + + if (endpoint == -1) + return NULL; - /* start up the interrupt endpoint if we have one */ - if (port->interrupt_in_urb) { - result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); - if (result) - dev_err(&port->dev, "submit irq_in urb failed %d\n", - result); + urb = usb_alloc_urb(0, mem_flags); + if (urb == NULL) { + dev_dbg(&serial->dev->dev, "%s: alloc for endpoint %d failed\n", + __func__, endpoint); + return NULL; } - return 0; + + buf = kmalloc(len, mem_flags); + if (buf) { + /* Fill URB using supplied data */ + usb_fill_bulk_urb(urb, serial->dev, + usb_sndbulkpipe(serial->dev, endpoint) | dir, + buf, len, callback, ctx); + + /* debug */ + dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__, + dir == USB_DIR_IN ? 'i' : 'o', urb, buf); + } else { + dev_dbg(&serial->dev->dev, "%s %c u:%p d:%p\n", __func__, + dir == USB_DIR_IN ? 'i' : 'o', urb, buf); + + sierra_release_urb(urb); + urb = NULL; + } + + return urb; } -static void sierra_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void sierra_close(struct usb_serial_port *port) { int i; struct usb_serial *serial = port->serial; struct sierra_port_private *portdata; - dev_dbg(&port->dev, "%s", __func__); + dev_dbg(&port->dev, "%s\n", __func__); portdata = usb_get_serial_port_data(port); portdata->rts_state = 0; @@ -626,25 +704,83 @@ static void sierra_close(struct tty_struct *tty, if (serial->dev) { mutex_lock(&serial->disc_mutex); if (!serial->disconnected) - sierra_send_setup(tty, port); + sierra_send_setup(port); mutex_unlock(&serial->disc_mutex); - /* Stop reading/writing urbs */ - for (i = 0; i < N_IN_URB; i++) - usb_kill_urb(portdata->in_urbs[i]); + /* Stop reading urbs */ + sierra_stop_rx_urbs(port); + /* .. and release them */ + for (i = 0; i < N_IN_URB; i++) { + sierra_release_urb(portdata->in_urbs[i]); + portdata->in_urbs[i] = NULL; + } } +} - usb_kill_urb(port->interrupt_in_urb); - tty_port_tty_set(&port->port, NULL); +static int sierra_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) +{ + struct sierra_port_private *portdata; + struct usb_serial *serial = port->serial; + int i; + int err; + int endpoint; + struct urb *urb; + + portdata = usb_get_serial_port_data(port); + + dev_dbg(&port->dev, "%s", __func__); + + /* Set some sane defaults */ + portdata->rts_state = 1; + portdata->dtr_state = 1; + + + endpoint = port->bulk_in_endpointAddress; + for (i = 0; i < ARRAY_SIZE(portdata->in_urbs); i++) { + urb = sierra_setup_urb(serial, endpoint, USB_DIR_IN, port, + IN_BUFLEN, GFP_KERNEL, + sierra_indat_callback); + portdata->in_urbs[i] = urb; + } + /* clear halt condition */ + usb_clear_halt(serial->dev, + usb_sndbulkpipe(serial->dev, endpoint) | USB_DIR_IN); + + err = sierra_submit_rx_urbs(port, GFP_KERNEL); + if (err) { + /* get rid of everything as in close */ + sierra_close(port); + return err; + } + sierra_send_setup(port); + + return 0; +} + + +static void sierra_dtr_rts(struct usb_serial_port *port, int on) +{ + struct usb_serial *serial = port->serial; + struct sierra_port_private *portdata; + + portdata = usb_get_serial_port_data(port); + portdata->rts_state = on; + portdata->dtr_state = on; + + if (serial->dev) { + mutex_lock(&serial->disc_mutex); + if (!serial->disconnected) + sierra_send_setup(port); + mutex_unlock(&serial->disc_mutex); + } } static int sierra_startup(struct usb_serial *serial) { struct usb_serial_port *port; struct sierra_port_private *portdata; - struct urb *urb; int i; - int j; dev_dbg(&serial->dev->dev, "%s", __func__); @@ -666,34 +802,8 @@ static int sierra_startup(struct usb_serial *serial) return -ENOMEM; } spin_lock_init(&portdata->lock); - for (j = 0; j < N_IN_URB; j++) { - portdata->in_buffer[j] = kmalloc(IN_BUFLEN, GFP_KERNEL); - if (!portdata->in_buffer[j]) { - for (--j; j >= 0; j--) - kfree(portdata->in_buffer[j]); - kfree(portdata); - return -ENOMEM; - } - } - + /* Set the port private data pointer */ usb_set_serial_port_data(port, portdata); - - /* initialize the in urbs */ - for (j = 0; j < N_IN_URB; ++j) { - urb = usb_alloc_urb(0, GFP_KERNEL); - if (urb == NULL) { - dev_dbg(&port->dev, "%s: alloc for in " - "port failed.", __func__); - continue; - } - /* Fill URB using supplied data. */ - usb_fill_bulk_urb(urb, serial->dev, - usb_rcvbulkpipe(serial->dev, - port->bulk_in_endpointAddress), - portdata->in_buffer[j], IN_BUFLEN, - sierra_indat_callback, port); - portdata->in_urbs[j] = urb; - } } return 0; @@ -701,7 +811,7 @@ static int sierra_startup(struct usb_serial *serial) static void sierra_shutdown(struct usb_serial *serial) { - int i, j; + int i; struct usb_serial_port *port; struct sierra_port_private *portdata; @@ -714,12 +824,6 @@ static void sierra_shutdown(struct usb_serial *serial) portdata = usb_get_serial_port_data(port); if (!portdata) continue; - - for (j = 0; j < N_IN_URB; j++) { - usb_kill_urb(portdata->in_urbs[j]); - usb_free_urb(portdata->in_urbs[j]); - kfree(portdata->in_buffer[j]); - } kfree(portdata); usb_set_serial_port_data(port, NULL); } @@ -737,6 +841,7 @@ static struct usb_serial_driver sierra_device = { .probe = sierra_probe, .open = sierra_open, .close = sierra_close, + .dtr_rts = sierra_dtr_rts, .write = sierra_write, .write_room = sierra_write_room, .set_termios = sierra_set_termios, diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c index 5e7528cc81a..8f7ed8f1399 100644 --- a/drivers/usb/serial/spcp8x5.c +++ b/drivers/usb/serial/spcp8x5.c @@ -446,66 +446,47 @@ static void spcp8x5_set_workMode(struct usb_device *dev, u16 value, "RTSCTS usb_control_msg(enable flowctrl) = %d\n", ret); } +static int spcp8x5_carrier_raised(struct usb_serial_port *port) +{ + struct spcp8x5_private *priv = usb_get_serial_port_data(port); + if (priv->line_status & MSR_STATUS_LINE_DCD) + return 1; + return 0; +} + +static void spcp8x5_dtr_rts(struct usb_serial_port *port, int on) +{ + struct spcp8x5_private *priv = usb_get_serial_port_data(port); + unsigned long flags; + u8 control; + + spin_lock_irqsave(&priv->lock, flags); + if (on) + priv->line_control = MCR_CONTROL_LINE_DTR + | MCR_CONTROL_LINE_RTS; + else + priv->line_control &= ~ (MCR_CONTROL_LINE_DTR + | MCR_CONTROL_LINE_RTS); + control = priv->line_control; + spin_unlock_irqrestore(&priv->lock, flags); + spcp8x5_set_ctrlLine(port->serial->dev, control , priv->type); +} + /* close the serial port. We should wait for data sending to device 1st and * then kill all urb. */ -static void spcp8x5_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void spcp8x5_close(struct usb_serial_port *port) { struct spcp8x5_private *priv = usb_get_serial_port_data(port); unsigned long flags; - unsigned int c_cflag; - int bps; - long timeout; - wait_queue_t wait; int result; dbg("%s - port %d", __func__, port->number); - /* wait for data to drain from the buffer */ spin_lock_irqsave(&priv->lock, flags); - timeout = SPCP8x5_CLOSING_WAIT; - init_waitqueue_entry(&wait, current); - add_wait_queue(&tty->write_wait, &wait); - for (;;) { - set_current_state(TASK_INTERRUPTIBLE); - if (ringbuf_avail_data(priv->buf) == 0 || - timeout == 0 || signal_pending(current)) - break; - spin_unlock_irqrestore(&priv->lock, flags); - timeout = schedule_timeout(timeout); - spin_lock_irqsave(&priv->lock, flags); - } - set_current_state(TASK_RUNNING); - remove_wait_queue(&tty->write_wait, &wait); - /* clear out any remaining data in the buffer */ clear_ringbuf(priv->buf); spin_unlock_irqrestore(&priv->lock, flags); - /* wait for characters to drain from the device (this is long enough - * for the entire all byte spcp8x5 hardware buffer to drain with no - * flow control for data rates of 1200 bps or more, for lower rates we - * should really know how much data is in the buffer to compute a delay - * that is not unnecessarily long) */ - bps = tty_get_baud_rate(tty); - if (bps > 1200) - timeout = max((HZ*2560) / bps, HZ/10); - else - timeout = 2*HZ; - set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout(timeout); - - /* clear control lines */ - if (tty) { - c_cflag = tty->termios->c_cflag; - if (c_cflag & HUPCL) { - spin_lock_irqsave(&priv->lock, flags); - priv->line_control = 0; - spin_unlock_irqrestore(&priv->lock, flags); - spcp8x5_set_ctrlLine(port->serial->dev, 0 , priv->type); - } - } - /* kill urb */ if (port->write_urb != NULL) { result = usb_unlink_urb(port->write_urb); @@ -665,13 +646,6 @@ static int spcp8x5_open(struct tty_struct *tty, if (ret) return ret; - spin_lock_irqsave(&priv->lock, flags); - if (tty && (tty->termios->c_cflag & CBAUD)) - priv->line_control = MCR_DTR | MCR_RTS; - else - priv->line_control = 0; - spin_unlock_irqrestore(&priv->lock, flags); - spcp8x5_set_ctrlLine(serial->dev, priv->line_control , priv->type); /* Setup termios */ @@ -691,9 +665,10 @@ static int spcp8x5_open(struct tty_struct *tty, port->read_urb->dev = serial->dev; ret = usb_submit_urb(port->read_urb, GFP_KERNEL); if (ret) { - spcp8x5_close(tty, port, NULL); + spcp8x5_close(port); return -EPROTO; } + port->port.drain_delay = 256; return 0; } @@ -1033,6 +1008,8 @@ static struct usb_serial_driver spcp8x5_device = { .num_ports = 1, .open = spcp8x5_open, .close = spcp8x5_close, + .dtr_rts = spcp8x5_dtr_rts, + .carrier_raised = spcp8x5_carrier_raised, .write = spcp8x5_write, .set_termios = spcp8x5_set_termios, .ioctl = spcp8x5_ioctl, diff --git a/drivers/usb/serial/symbolserial.c b/drivers/usb/serial/symbolserial.c index 69879e43794..8b07ebc6bae 100644 --- a/drivers/usb/serial/symbolserial.c +++ b/drivers/usb/serial/symbolserial.c @@ -152,8 +152,7 @@ static int symbol_open(struct tty_struct *tty, struct usb_serial_port *port, return result; } -static void symbol_close(struct tty_struct *tty, struct usb_serial_port *port, - struct file *filp) +static void symbol_close(struct usb_serial_port *port) { struct symbol_private *priv = usb_get_serial_data(port->serial); diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 0a64bac306e..42cb04c403b 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -100,8 +100,7 @@ static int ti_startup(struct usb_serial *serial); static void ti_shutdown(struct usb_serial *serial); static int ti_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *file); -static void ti_close(struct tty_struct *tty, struct usb_serial_port *port, - struct file *file); +static void ti_close(struct usb_serial_port *port); static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *data, int count); static int ti_write_room(struct tty_struct *tty); @@ -647,8 +646,7 @@ release_lock: } -static void ti_close(struct tty_struct *tty, struct usb_serial_port *port, - struct file *file) +static void ti_close(struct usb_serial_port *port) { struct ti_device *tdev; struct ti_port *tport; diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index f331e2bde88..1967a7edc10 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -238,9 +238,11 @@ static int serial_open (struct tty_struct *tty, struct file *filp) goto bailout_interface_put; mutex_unlock(&serial->disc_mutex); } - mutex_unlock(&port->mutex); - return 0; + /* Now do the correct tty layer semantics */ + retval = tty_port_block_til_ready(&port->port, tty, filp); + if (retval == 0) + return 0; bailout_interface_put: usb_autopm_put_interface(serial->interface); @@ -259,64 +261,89 @@ bailout_serial_put: return retval; } -static void serial_close(struct tty_struct *tty, struct file *filp) +/** + * serial_do_down - shut down hardware + * @port: port to shut down + * + * Shut down a USB port unless it is the console. We never shut down the + * console hardware as it will always be in use. + * + * Don't free any resources at this point + */ +static void serial_do_down(struct usb_serial_port *port) { - struct usb_serial_port *port = tty->driver_data; + struct usb_serial_driver *drv = port->serial->type; struct usb_serial *serial; struct module *owner; - int count; - if (!port) + /* The console is magical, do not hang up the console hardware + or there will be tears */ + if (port->console) return; - dbg("%s - port %d", __func__, port->number); - mutex_lock(&port->mutex); serial = port->serial; owner = serial->type->driver.owner; - if (port->port.count == 0) { - mutex_unlock(&port->mutex); - return; - } - - if (port->port.count == 1) - /* only call the device specific close if this - * port is being closed by the last owner. Ensure we do - * this before we drop the port count. The call is protected - * by the port mutex - */ - serial->type->close(tty, port, filp); - - if (port->port.count == (port->console ? 2 : 1)) { - struct tty_struct *tty = tty_port_tty_get(&port->port); - if (tty) { - /* We must do this before we drop the port count to - zero. */ - if (tty->driver_data) - tty->driver_data = NULL; - tty_port_tty_set(&port->port, NULL); - tty_kref_put(tty); - } - } + if (drv->close) + drv->close(port); - --port->port.count; - count = port->port.count; mutex_unlock(&port->mutex); - put_device(&port->dev); +} + +/** + * serial_do_free - free resources post close/hangup + * @port: port to free up + * + * Do the resource freeing and refcount dropping for the port. We must + * be careful about ordering and we must avoid freeing up the console. + */ +static void serial_do_free(struct usb_serial_port *port) +{ + struct usb_serial *serial; + struct module *owner; + + /* The console is magical, do not hang up the console hardware + or there will be tears */ + if (port->console) + return; + + serial = port->serial; + owner = serial->type->driver.owner; + put_device(&port->dev); /* Mustn't dereference port any more */ - if (count == 0) { - mutex_lock(&serial->disc_mutex); - if (!serial->disconnected) - usb_autopm_put_interface(serial->interface); - mutex_unlock(&serial->disc_mutex); - } + mutex_lock(&serial->disc_mutex); + if (!serial->disconnected) + usb_autopm_put_interface(serial->interface); + mutex_unlock(&serial->disc_mutex); usb_serial_put(serial); - /* Mustn't dereference serial any more */ - if (count == 0) - module_put(owner); + module_put(owner); +} + +static void serial_close(struct tty_struct *tty, struct file *filp) +{ + struct usb_serial_port *port = tty->driver_data; + + dbg("%s - port %d", __func__, port->number); + + + if (tty_port_close_start(&port->port, tty, filp) == 0) + return; + + serial_do_down(port); + tty_port_close_end(&port->port, tty); + tty_port_tty_set(&port->port, NULL); + serial_do_free(port); +} + +static void serial_hangup(struct tty_struct *tty) +{ + struct usb_serial_port *port = tty->driver_data; + serial_do_down(port); + tty_port_hangup(&port->port); + serial_do_free(port); } static int serial_write(struct tty_struct *tty, const unsigned char *buf, @@ -648,6 +675,29 @@ static struct usb_serial_driver *search_serial_device( return NULL; } +static int serial_carrier_raised(struct tty_port *port) +{ + struct usb_serial_port *p = container_of(port, struct usb_serial_port, port); + struct usb_serial_driver *drv = p->serial->type; + if (drv->carrier_raised) + return drv->carrier_raised(p); + /* No carrier control - don't block */ + return 1; +} + +static void serial_dtr_rts(struct tty_port *port, int on) +{ + struct usb_serial_port *p = container_of(port, struct usb_serial_port, port); + struct usb_serial_driver *drv = p->serial->type; + if (drv->dtr_rts) + drv->dtr_rts(p, on); +} + +static const struct tty_port_operations serial_port_ops = { + .carrier_raised = serial_carrier_raised, + .dtr_rts = serial_dtr_rts, +}; + int usb_serial_probe(struct usb_interface *interface, const struct usb_device_id *id) { @@ -841,6 +891,7 @@ int usb_serial_probe(struct usb_interface *interface, if (!port) goto probe_error; tty_port_init(&port->port); + port->port.ops = &serial_port_ops; port->serial = serial; spin_lock_init(&port->lock); mutex_init(&port->mutex); @@ -1071,6 +1122,9 @@ void usb_serial_disconnect(struct usb_interface *interface) if (port) { struct tty_struct *tty = tty_port_tty_get(&port->port); if (tty) { + /* The hangup will occur asynchronously but + the object refcounts will sort out all the + cleanup */ tty_hangup(tty); tty_kref_put(tty); } @@ -1135,6 +1189,7 @@ static const struct tty_operations serial_ops = { .open = serial_open, .close = serial_close, .write = serial_write, + .hangup = serial_hangup, .write_room = serial_write_room, .ioctl = serial_ioctl, .set_termios = serial_set_termios, @@ -1147,6 +1202,7 @@ static const struct tty_operations serial_ops = { .proc_fops = &serial_proc_fops, }; + struct tty_driver *usb_serial_tty_driver; static int __init usb_serial_init(void) diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c index 5ac414bda71..b15f1c0e1d4 100644 --- a/drivers/usb/serial/visor.c +++ b/drivers/usb/serial/visor.c @@ -38,8 +38,7 @@ /* function prototypes for a handspring visor */ static int visor_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); -static void visor_close(struct tty_struct *tty, struct usb_serial_port *port, - struct file *filp); +static void visor_close(struct usb_serial_port *port); static int visor_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); static int visor_write_room(struct tty_struct *tty); @@ -324,8 +323,7 @@ exit: } -static void visor_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void visor_close(struct usb_serial_port *port) { struct visor_private *priv = usb_get_serial_port_data(port); unsigned char *transfer_buffer; diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index 5335d3211c0..7c7295d09f3 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -147,8 +147,7 @@ static int whiteheat_attach(struct usb_serial *serial); static void whiteheat_shutdown(struct usb_serial *serial); static int whiteheat_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); -static void whiteheat_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp); +static void whiteheat_close(struct usb_serial_port *port); static int whiteheat_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); @@ -712,8 +711,7 @@ exit: } -static void whiteheat_close(struct tty_struct *tty, - struct usb_serial_port *port, struct file *filp) +static void whiteheat_close(struct usb_serial_port *port) { struct whiteheat_private *info = usb_get_serial_port_data(port); struct whiteheat_urb_wrap *wrap; @@ -723,31 +721,7 @@ static void whiteheat_close(struct tty_struct *tty, dbg("%s - port %d", __func__, port->number); - mutex_lock(&port->serial->disc_mutex); - /* filp is NULL when called from usb_serial_disconnect */ - if ((filp && (tty_hung_up_p(filp))) || port->serial->disconnected) { - mutex_unlock(&port->serial->disc_mutex); - return; - } - mutex_unlock(&port->serial->disc_mutex); - - tty->closing = 1; - -/* - * Not currently in use; tty_wait_until_sent() calls - * serial_chars_in_buffer() which deadlocks on the second semaphore - * acquisition. This should be fixed at some point. Greg's been - * notified. - if ((filp->f_flags & (O_NDELAY | O_NONBLOCK)) == 0) { - tty_wait_until_sent(tty, CLOSING_DELAY); - } -*/ - - tty_driver_flush_buffer(tty); - tty_ldisc_flush(tty); - firm_report_tx_done(port); - firm_close(port); /* shutdown our bulk reads and writes */ @@ -775,10 +749,7 @@ static void whiteheat_close(struct tty_struct *tty, } spin_unlock_irq(&info->lock); mutex_unlock(&info->deathwarrant); - stop_command_port(port->serial); - - tty->closing = 0; } diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index 4ca3b586064..cfa26d56ce6 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -132,7 +132,7 @@ static int slave_configure(struct scsi_device *sdev) if (us->fflags & US_FL_MAX_SECTORS_MIN) max_sectors = PAGE_CACHE_SIZE >> 9; - if (sdev->request_queue->max_sectors > max_sectors) + if (queue_max_sectors(sdev->request_queue) > max_sectors) blk_queue_max_sectors(sdev->request_queue, max_sectors); } else if (sdev->type == TYPE_TAPE) { @@ -483,7 +483,7 @@ static ssize_t show_max_sectors(struct device *dev, struct device_attribute *att { struct scsi_device *sdev = to_scsi_device(dev); - return sprintf(buf, "%u\n", sdev->request_queue->max_sectors); + return sprintf(buf, "%u\n", queue_max_sectors(sdev->request_queue)); } /* Input routine for the sysfs max_sectors file */ diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c index 38e86b84dce..59d7d5ec17a 100644 --- a/drivers/video/console/vgacon.c +++ b/drivers/video/console/vgacon.c @@ -180,7 +180,7 @@ static inline void vga_set_mem_top(struct vc_data *c) } #ifdef CONFIG_VGACON_SOFT_SCROLLBACK -#include <linux/bootmem.h> +#include <linux/slab.h> /* software scrollback */ static void *vgacon_scrollback; static int vgacon_scrollback_tail; @@ -210,8 +210,7 @@ static void vgacon_scrollback_init(int pitch) */ static void __init_refok vgacon_scrollback_startup(void) { - vgacon_scrollback = alloc_bootmem(CONFIG_VGACON_SOFT_SCROLLBACK_SIZE - * 1024); + vgacon_scrollback = kcalloc(CONFIG_VGACON_SOFT_SCROLLBACK_SIZE, 1024, GFP_NOWAIT); vgacon_scrollback_init(vga_video_num_columns * 2); } diff --git a/drivers/video/hitfb.c b/drivers/video/hitfb.c index e6467cf9f19..020db7fc915 100644 --- a/drivers/video/hitfb.c +++ b/drivers/video/hitfb.c @@ -335,9 +335,9 @@ static int __init hitfb_probe(struct platform_device *dev) if (fb_get_options("hitfb", NULL)) return -ENODEV; - hitfb_fix.mmio_start = CONFIG_HD64461_IOBASE+0x1000; + hitfb_fix.mmio_start = HD64461_IO_OFFSET(0x1000); hitfb_fix.mmio_len = 0x1000; - hitfb_fix.smem_start = CONFIG_HD64461_IOBASE + 0x02000000; + hitfb_fix.smem_start = HD64461_IO_OFFSET(0x02000000); hitfb_fix.smem_len = 512 * 1024; lcdclor = fb_readw(HD64461_LCDCLOR); diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig index 8ac9cddac57..cab100acf98 100644 --- a/drivers/xen/Kconfig +++ b/drivers/xen/Kconfig @@ -18,6 +18,16 @@ config XEN_SCRUB_PAGES secure, but slightly less efficient. If in doubt, say yes. +config XEN_DEV_EVTCHN + tristate "Xen /dev/xen/evtchn device" + depends on XEN + default y + help + The evtchn driver allows a userspace process to triger event + channels and to receive notification of an event channel + firing. + If in doubt, say yes. + config XENFS tristate "Xen filesystem" depends on XEN @@ -41,3 +51,13 @@ config XEN_COMPAT_XENFS a xen platform. If in doubt, say yes. +config XEN_SYS_HYPERVISOR + bool "Create xen entries under /sys/hypervisor" + depends on XEN && SYSFS + select SYS_HYPERVISOR + default y + help + Create entries under /sys/hypervisor describing the Xen + hypervisor environment. When running native or in another + virtual environment, /sys/hypervisor will still be present, + but will have no xen contents.
\ No newline at end of file diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile index ff8accc9e10..ec2a39b1e26 100644 --- a/drivers/xen/Makefile +++ b/drivers/xen/Makefile @@ -4,4 +4,6 @@ obj-y += xenbus/ obj-$(CONFIG_HOTPLUG_CPU) += cpu_hotplug.o obj-$(CONFIG_XEN_XENCOMM) += xencomm.o obj-$(CONFIG_XEN_BALLOON) += balloon.o -obj-$(CONFIG_XENFS) += xenfs/
\ No newline at end of file +obj-$(CONFIG_XEN_DEV_EVTCHN) += evtchn.o +obj-$(CONFIG_XENFS) += xenfs/ +obj-$(CONFIG_XEN_SYS_HYPERVISOR) += sys-hypervisor.o
\ No newline at end of file diff --git a/drivers/xen/events.c b/drivers/xen/events.c index be437c2bc94..891d2e90753 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -151,6 +151,12 @@ static unsigned int evtchn_from_irq(unsigned irq) return info_for_irq(irq)->evtchn; } +unsigned irq_from_evtchn(unsigned int evtchn) +{ + return evtchn_to_irq[evtchn]; +} +EXPORT_SYMBOL_GPL(irq_from_evtchn); + static enum ipi_vector ipi_from_irq(unsigned irq) { struct irq_info *info = info_for_irq(irq); diff --git a/drivers/xen/evtchn.c b/drivers/xen/evtchn.c new file mode 100644 index 00000000000..af031950f9b --- /dev/null +++ b/drivers/xen/evtchn.c @@ -0,0 +1,507 @@ +/****************************************************************************** + * evtchn.c + * + * Driver for receiving and demuxing event-channel signals. + * + * Copyright (c) 2004-2005, K A Fraser + * Multi-process extensions Copyright (c) 2004, Steven Smith + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation; or, when distributed + * separately from the Linux kernel or incorporated into other + * software packages, subject to the following license: + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this source file (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, modify, + * merge, publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/errno.h> +#include <linux/fs.h> +#include <linux/errno.h> +#include <linux/miscdevice.h> +#include <linux/major.h> +#include <linux/proc_fs.h> +#include <linux/stat.h> +#include <linux/poll.h> +#include <linux/irq.h> +#include <linux/init.h> +#include <linux/gfp.h> +#include <linux/mutex.h> +#include <linux/cpu.h> +#include <xen/events.h> +#include <xen/evtchn.h> +#include <asm/xen/hypervisor.h> + +struct per_user_data { + struct mutex bind_mutex; /* serialize bind/unbind operations */ + + /* Notification ring, accessed via /dev/xen/evtchn. */ +#define EVTCHN_RING_SIZE (PAGE_SIZE / sizeof(evtchn_port_t)) +#define EVTCHN_RING_MASK(_i) ((_i)&(EVTCHN_RING_SIZE-1)) + evtchn_port_t *ring; + unsigned int ring_cons, ring_prod, ring_overflow; + struct mutex ring_cons_mutex; /* protect against concurrent readers */ + + /* Processes wait on this queue when ring is empty. */ + wait_queue_head_t evtchn_wait; + struct fasync_struct *evtchn_async_queue; + const char *name; +}; + +/* Who's bound to each port? */ +static struct per_user_data *port_user[NR_EVENT_CHANNELS]; +static DEFINE_SPINLOCK(port_user_lock); /* protects port_user[] and ring_prod */ + +irqreturn_t evtchn_interrupt(int irq, void *data) +{ + unsigned int port = (unsigned long)data; + struct per_user_data *u; + + spin_lock(&port_user_lock); + + u = port_user[port]; + + disable_irq_nosync(irq); + + if ((u->ring_prod - u->ring_cons) < EVTCHN_RING_SIZE) { + u->ring[EVTCHN_RING_MASK(u->ring_prod)] = port; + wmb(); /* Ensure ring contents visible */ + if (u->ring_cons == u->ring_prod++) { + wake_up_interruptible(&u->evtchn_wait); + kill_fasync(&u->evtchn_async_queue, + SIGIO, POLL_IN); + } + } else { + u->ring_overflow = 1; + } + + spin_unlock(&port_user_lock); + + return IRQ_HANDLED; +} + +static ssize_t evtchn_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + int rc; + unsigned int c, p, bytes1 = 0, bytes2 = 0; + struct per_user_data *u = file->private_data; + + /* Whole number of ports. */ + count &= ~(sizeof(evtchn_port_t)-1); + + if (count == 0) + return 0; + + if (count > PAGE_SIZE) + count = PAGE_SIZE; + + for (;;) { + mutex_lock(&u->ring_cons_mutex); + + rc = -EFBIG; + if (u->ring_overflow) + goto unlock_out; + + c = u->ring_cons; + p = u->ring_prod; + if (c != p) + break; + + mutex_unlock(&u->ring_cons_mutex); + + if (file->f_flags & O_NONBLOCK) + return -EAGAIN; + + rc = wait_event_interruptible(u->evtchn_wait, + u->ring_cons != u->ring_prod); + if (rc) + return rc; + } + + /* Byte lengths of two chunks. Chunk split (if any) is at ring wrap. */ + if (((c ^ p) & EVTCHN_RING_SIZE) != 0) { + bytes1 = (EVTCHN_RING_SIZE - EVTCHN_RING_MASK(c)) * + sizeof(evtchn_port_t); + bytes2 = EVTCHN_RING_MASK(p) * sizeof(evtchn_port_t); + } else { + bytes1 = (p - c) * sizeof(evtchn_port_t); + bytes2 = 0; + } + + /* Truncate chunks according to caller's maximum byte count. */ + if (bytes1 > count) { + bytes1 = count; + bytes2 = 0; + } else if ((bytes1 + bytes2) > count) { + bytes2 = count - bytes1; + } + + rc = -EFAULT; + rmb(); /* Ensure that we see the port before we copy it. */ + if (copy_to_user(buf, &u->ring[EVTCHN_RING_MASK(c)], bytes1) || + ((bytes2 != 0) && + copy_to_user(&buf[bytes1], &u->ring[0], bytes2))) + goto unlock_out; + + u->ring_cons += (bytes1 + bytes2) / sizeof(evtchn_port_t); + rc = bytes1 + bytes2; + + unlock_out: + mutex_unlock(&u->ring_cons_mutex); + return rc; +} + +static ssize_t evtchn_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) +{ + int rc, i; + evtchn_port_t *kbuf = (evtchn_port_t *)__get_free_page(GFP_KERNEL); + struct per_user_data *u = file->private_data; + + if (kbuf == NULL) + return -ENOMEM; + + /* Whole number of ports. */ + count &= ~(sizeof(evtchn_port_t)-1); + + rc = 0; + if (count == 0) + goto out; + + if (count > PAGE_SIZE) + count = PAGE_SIZE; + + rc = -EFAULT; + if (copy_from_user(kbuf, buf, count) != 0) + goto out; + + spin_lock_irq(&port_user_lock); + for (i = 0; i < (count/sizeof(evtchn_port_t)); i++) + if ((kbuf[i] < NR_EVENT_CHANNELS) && (port_user[kbuf[i]] == u)) + enable_irq(irq_from_evtchn(kbuf[i])); + spin_unlock_irq(&port_user_lock); + + rc = count; + + out: + free_page((unsigned long)kbuf); + return rc; +} + +static int evtchn_bind_to_user(struct per_user_data *u, int port) +{ + int rc = 0; + + /* + * Ports are never reused, so every caller should pass in a + * unique port. + * + * (Locking not necessary because we haven't registered the + * interrupt handler yet, and our caller has already + * serialized bind operations.) + */ + BUG_ON(port_user[port] != NULL); + port_user[port] = u; + + rc = bind_evtchn_to_irqhandler(port, evtchn_interrupt, IRQF_DISABLED, + u->name, (void *)(unsigned long)port); + if (rc >= 0) + rc = 0; + + return rc; +} + +static void evtchn_unbind_from_user(struct per_user_data *u, int port) +{ + int irq = irq_from_evtchn(port); + + unbind_from_irqhandler(irq, (void *)(unsigned long)port); + + /* make sure we unbind the irq handler before clearing the port */ + barrier(); + + port_user[port] = NULL; +} + +static long evtchn_ioctl(struct file *file, + unsigned int cmd, unsigned long arg) +{ + int rc; + struct per_user_data *u = file->private_data; + void __user *uarg = (void __user *) arg; + + /* Prevent bind from racing with unbind */ + mutex_lock(&u->bind_mutex); + + switch (cmd) { + case IOCTL_EVTCHN_BIND_VIRQ: { + struct ioctl_evtchn_bind_virq bind; + struct evtchn_bind_virq bind_virq; + + rc = -EFAULT; + if (copy_from_user(&bind, uarg, sizeof(bind))) + break; + + bind_virq.virq = bind.virq; + bind_virq.vcpu = 0; + rc = HYPERVISOR_event_channel_op(EVTCHNOP_bind_virq, + &bind_virq); + if (rc != 0) + break; + + rc = evtchn_bind_to_user(u, bind_virq.port); + if (rc == 0) + rc = bind_virq.port; + break; + } + + case IOCTL_EVTCHN_BIND_INTERDOMAIN: { + struct ioctl_evtchn_bind_interdomain bind; + struct evtchn_bind_interdomain bind_interdomain; + + rc = -EFAULT; + if (copy_from_user(&bind, uarg, sizeof(bind))) + break; + + bind_interdomain.remote_dom = bind.remote_domain; + bind_interdomain.remote_port = bind.remote_port; + rc = HYPERVISOR_event_channel_op(EVTCHNOP_bind_interdomain, + &bind_interdomain); + if (rc != 0) + break; + + rc = evtchn_bind_to_user(u, bind_interdomain.local_port); + if (rc == 0) + rc = bind_interdomain.local_port; + break; + } + + case IOCTL_EVTCHN_BIND_UNBOUND_PORT: { + struct ioctl_evtchn_bind_unbound_port bind; + struct evtchn_alloc_unbound alloc_unbound; + + rc = -EFAULT; + if (copy_from_user(&bind, uarg, sizeof(bind))) + break; + + alloc_unbound.dom = DOMID_SELF; + alloc_unbound.remote_dom = bind.remote_domain; + rc = HYPERVISOR_event_channel_op(EVTCHNOP_alloc_unbound, + &alloc_unbound); + if (rc != 0) + break; + + rc = evtchn_bind_to_user(u, alloc_unbound.port); + if (rc == 0) + rc = alloc_unbound.port; + break; + } + + case IOCTL_EVTCHN_UNBIND: { + struct ioctl_evtchn_unbind unbind; + + rc = -EFAULT; + if (copy_from_user(&unbind, uarg, sizeof(unbind))) + break; + + rc = -EINVAL; + if (unbind.port >= NR_EVENT_CHANNELS) + break; + + spin_lock_irq(&port_user_lock); + + rc = -ENOTCONN; + if (port_user[unbind.port] != u) { + spin_unlock_irq(&port_user_lock); + break; + } + + evtchn_unbind_from_user(u, unbind.port); + + spin_unlock_irq(&port_user_lock); + + rc = 0; + break; + } + + case IOCTL_EVTCHN_NOTIFY: { + struct ioctl_evtchn_notify notify; + + rc = -EFAULT; + if (copy_from_user(¬ify, uarg, sizeof(notify))) + break; + + if (notify.port >= NR_EVENT_CHANNELS) { + rc = -EINVAL; + } else if (port_user[notify.port] != u) { + rc = -ENOTCONN; + } else { + notify_remote_via_evtchn(notify.port); + rc = 0; + } + break; + } + + case IOCTL_EVTCHN_RESET: { + /* Initialise the ring to empty. Clear errors. */ + mutex_lock(&u->ring_cons_mutex); + spin_lock_irq(&port_user_lock); + u->ring_cons = u->ring_prod = u->ring_overflow = 0; + spin_unlock_irq(&port_user_lock); + mutex_unlock(&u->ring_cons_mutex); + rc = 0; + break; + } + + default: + rc = -ENOSYS; + break; + } + mutex_unlock(&u->bind_mutex); + + return rc; +} + +static unsigned int evtchn_poll(struct file *file, poll_table *wait) +{ + unsigned int mask = POLLOUT | POLLWRNORM; + struct per_user_data *u = file->private_data; + + poll_wait(file, &u->evtchn_wait, wait); + if (u->ring_cons != u->ring_prod) + mask |= POLLIN | POLLRDNORM; + if (u->ring_overflow) + mask = POLLERR; + return mask; +} + +static int evtchn_fasync(int fd, struct file *filp, int on) +{ + struct per_user_data *u = filp->private_data; + return fasync_helper(fd, filp, on, &u->evtchn_async_queue); +} + +static int evtchn_open(struct inode *inode, struct file *filp) +{ + struct per_user_data *u; + + u = kzalloc(sizeof(*u), GFP_KERNEL); + if (u == NULL) + return -ENOMEM; + + u->name = kasprintf(GFP_KERNEL, "evtchn:%s", current->comm); + if (u->name == NULL) { + kfree(u); + return -ENOMEM; + } + + init_waitqueue_head(&u->evtchn_wait); + + u->ring = (evtchn_port_t *)__get_free_page(GFP_KERNEL); + if (u->ring == NULL) { + kfree(u->name); + kfree(u); + return -ENOMEM; + } + + mutex_init(&u->bind_mutex); + mutex_init(&u->ring_cons_mutex); + + filp->private_data = u; + + return 0; +} + +static int evtchn_release(struct inode *inode, struct file *filp) +{ + int i; + struct per_user_data *u = filp->private_data; + + spin_lock_irq(&port_user_lock); + + free_page((unsigned long)u->ring); + + for (i = 0; i < NR_EVENT_CHANNELS; i++) { + if (port_user[i] != u) + continue; + + evtchn_unbind_from_user(port_user[i], i); + } + + spin_unlock_irq(&port_user_lock); + + kfree(u->name); + kfree(u); + + return 0; +} + +static const struct file_operations evtchn_fops = { + .owner = THIS_MODULE, + .read = evtchn_read, + .write = evtchn_write, + .unlocked_ioctl = evtchn_ioctl, + .poll = evtchn_poll, + .fasync = evtchn_fasync, + .open = evtchn_open, + .release = evtchn_release, +}; + +static struct miscdevice evtchn_miscdev = { + .minor = MISC_DYNAMIC_MINOR, + .name = "evtchn", + .fops = &evtchn_fops, +}; +static int __init evtchn_init(void) +{ + int err; + + if (!xen_domain()) + return -ENODEV; + + spin_lock_init(&port_user_lock); + memset(port_user, 0, sizeof(port_user)); + + /* Create '/dev/misc/evtchn'. */ + err = misc_register(&evtchn_miscdev); + if (err != 0) { + printk(KERN_ALERT "Could not register /dev/misc/evtchn\n"); + return err; + } + + printk(KERN_INFO "Event-channel device installed.\n"); + + return 0; +} + +static void __exit evtchn_cleanup(void) +{ + misc_deregister(&evtchn_miscdev); +} + +module_init(evtchn_init); +module_exit(evtchn_cleanup); + +MODULE_LICENSE("GPL"); diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c index 4b5b84837ee..fddc2025dec 100644 --- a/drivers/xen/manage.c +++ b/drivers/xen/manage.c @@ -98,9 +98,8 @@ static void do_suspend(void) goto out; } - printk("suspending xenbus...\n"); - /* XXX use normal device tree? */ - xenbus_suspend(); + printk(KERN_DEBUG "suspending xenstore...\n"); + xs_suspend(); err = device_power_down(PMSG_SUSPEND); if (err) { @@ -116,9 +115,9 @@ static void do_suspend(void) if (!cancelled) { xen_arch_resume(); - xenbus_resume(); + xs_resume(); } else - xenbus_suspend_cancel(); + xs_suspend_cancel(); device_power_up(PMSG_RESUME); diff --git a/drivers/xen/sys-hypervisor.c b/drivers/xen/sys-hypervisor.c new file mode 100644 index 00000000000..88a60e03ccf --- /dev/null +++ b/drivers/xen/sys-hypervisor.c @@ -0,0 +1,445 @@ +/* + * copyright (c) 2006 IBM Corporation + * Authored by: Mike D. Day <ncmike@us.ibm.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/kobject.h> + +#include <asm/xen/hypervisor.h> +#include <asm/xen/hypercall.h> + +#include <xen/xenbus.h> +#include <xen/interface/xen.h> +#include <xen/interface/version.h> + +#define HYPERVISOR_ATTR_RO(_name) \ +static struct hyp_sysfs_attr _name##_attr = __ATTR_RO(_name) + +#define HYPERVISOR_ATTR_RW(_name) \ +static struct hyp_sysfs_attr _name##_attr = \ + __ATTR(_name, 0644, _name##_show, _name##_store) + +struct hyp_sysfs_attr { + struct attribute attr; + ssize_t (*show)(struct hyp_sysfs_attr *, char *); + ssize_t (*store)(struct hyp_sysfs_attr *, const char *, size_t); + void *hyp_attr_data; +}; + +static ssize_t type_show(struct hyp_sysfs_attr *attr, char *buffer) +{ + return sprintf(buffer, "xen\n"); +} + +HYPERVISOR_ATTR_RO(type); + +static int __init xen_sysfs_type_init(void) +{ + return sysfs_create_file(hypervisor_kobj, &type_attr.attr); +} + +static void xen_sysfs_type_destroy(void) +{ + sysfs_remove_file(hypervisor_kobj, &type_attr.attr); +} + +/* xen version attributes */ +static ssize_t major_show(struct hyp_sysfs_attr *attr, char *buffer) +{ + int version = HYPERVISOR_xen_version(XENVER_version, NULL); + if (version) + return sprintf(buffer, "%d\n", version >> 16); + return -ENODEV; +} + +HYPERVISOR_ATTR_RO(major); + +static ssize_t minor_show(struct hyp_sysfs_attr *attr, char *buffer) +{ + int version = HYPERVISOR_xen_version(XENVER_version, NULL); + if (version) + return sprintf(buffer, "%d\n", version & 0xff); + return -ENODEV; +} + +HYPERVISOR_ATTR_RO(minor); + +static ssize_t extra_show(struct hyp_sysfs_attr *attr, char *buffer) +{ + int ret = -ENOMEM; + char *extra; + + extra = kmalloc(XEN_EXTRAVERSION_LEN, GFP_KERNEL); + if (extra) { + ret = HYPERVISOR_xen_version(XENVER_extraversion, extra); + if (!ret) + ret = sprintf(buffer, "%s\n", extra); + kfree(extra); + } + + return ret; +} + +HYPERVISOR_ATTR_RO(extra); + +static struct attribute *version_attrs[] = { + &major_attr.attr, + &minor_attr.attr, + &extra_attr.attr, + NULL +}; + +static struct attribute_group version_group = { + .name = "version", + .attrs = version_attrs, +}; + +static int __init xen_sysfs_version_init(void) +{ + return sysfs_create_group(hypervisor_kobj, &version_group); +} + +static void xen_sysfs_version_destroy(void) +{ + sysfs_remove_group(hypervisor_kobj, &version_group); +} + +/* UUID */ + +static ssize_t uuid_show(struct hyp_sysfs_attr *attr, char *buffer) +{ + char *vm, *val; + int ret; + extern int xenstored_ready; + + if (!xenstored_ready) + return -EBUSY; + + vm = xenbus_read(XBT_NIL, "vm", "", NULL); + if (IS_ERR(vm)) + return PTR_ERR(vm); + val = xenbus_read(XBT_NIL, vm, "uuid", NULL); + kfree(vm); + if (IS_ERR(val)) + return PTR_ERR(val); + ret = sprintf(buffer, "%s\n", val); + kfree(val); + return ret; +} + +HYPERVISOR_ATTR_RO(uuid); + +static int __init xen_sysfs_uuid_init(void) +{ + return sysfs_create_file(hypervisor_kobj, &uuid_attr.attr); +} + +static void xen_sysfs_uuid_destroy(void) +{ + sysfs_remove_file(hypervisor_kobj, &uuid_attr.attr); +} + +/* xen compilation attributes */ + +static ssize_t compiler_show(struct hyp_sysfs_attr *attr, char *buffer) +{ + int ret = -ENOMEM; + struct xen_compile_info *info; + + info = kmalloc(sizeof(struct xen_compile_info), GFP_KERNEL); + if (info) { + ret = HYPERVISOR_xen_version(XENVER_compile_info, info); + if (!ret) + ret = sprintf(buffer, "%s\n", info->compiler); + kfree(info); + } + + return ret; +} + +HYPERVISOR_ATTR_RO(compiler); + +static ssize_t compiled_by_show(struct hyp_sysfs_attr *attr, char *buffer) +{ + int ret = -ENOMEM; + struct xen_compile_info *info; + + info = kmalloc(sizeof(struct xen_compile_info), GFP_KERNEL); + if (info) { + ret = HYPERVISOR_xen_version(XENVER_compile_info, info); + if (!ret) + ret = sprintf(buffer, "%s\n", info->compile_by); + kfree(info); + } + + return ret; +} + +HYPERVISOR_ATTR_RO(compiled_by); + +static ssize_t compile_date_show(struct hyp_sysfs_attr *attr, char *buffer) +{ + int ret = -ENOMEM; + struct xen_compile_info *info; + + info = kmalloc(sizeof(struct xen_compile_info), GFP_KERNEL); + if (info) { + ret = HYPERVISOR_xen_version(XENVER_compile_info, info); + if (!ret) + ret = sprintf(buffer, "%s\n", info->compile_date); + kfree(info); + } + + return ret; +} + +HYPERVISOR_ATTR_RO(compile_date); + +static struct attribute *xen_compile_attrs[] = { + &compiler_attr.attr, + &compiled_by_attr.attr, + &compile_date_attr.attr, + NULL +}; + +static struct attribute_group xen_compilation_group = { + .name = "compilation", + .attrs = xen_compile_attrs, +}; + +int __init static xen_compilation_init(void) +{ + return sysfs_create_group(hypervisor_kobj, &xen_compilation_group); +} + +static void xen_compilation_destroy(void) +{ + sysfs_remove_group(hypervisor_kobj, &xen_compilation_group); +} + +/* xen properties info */ + +static ssize_t capabilities_show(struct hyp_sysfs_attr *attr, char *buffer) +{ + int ret = -ENOMEM; + char *caps; + + caps = kmalloc(XEN_CAPABILITIES_INFO_LEN, GFP_KERNEL); + if (caps) { + ret = HYPERVISOR_xen_version(XENVER_capabilities, caps); + if (!ret) + ret = sprintf(buffer, "%s\n", caps); + kfree(caps); + } + + return ret; +} + +HYPERVISOR_ATTR_RO(capabilities); + +static ssize_t changeset_show(struct hyp_sysfs_attr *attr, char *buffer) +{ + int ret = -ENOMEM; + char *cset; + + cset = kmalloc(XEN_CHANGESET_INFO_LEN, GFP_KERNEL); + if (cset) { + ret = HYPERVISOR_xen_version(XENVER_changeset, cset); + if (!ret) + ret = sprintf(buffer, "%s\n", cset); + kfree(cset); + } + + return ret; +} + +HYPERVISOR_ATTR_RO(changeset); + +static ssize_t virtual_start_show(struct hyp_sysfs_attr *attr, char *buffer) +{ + int ret = -ENOMEM; + struct xen_platform_parameters *parms; + + parms = kmalloc(sizeof(struct xen_platform_parameters), GFP_KERNEL); + if (parms) { + ret = HYPERVISOR_xen_version(XENVER_platform_parameters, + parms); + if (!ret) + ret = sprintf(buffer, "%lx\n", parms->virt_start); + kfree(parms); + } + + return ret; +} + +HYPERVISOR_ATTR_RO(virtual_start); + +static ssize_t pagesize_show(struct hyp_sysfs_attr *attr, char *buffer) +{ + int ret; + + ret = HYPERVISOR_xen_version(XENVER_pagesize, NULL); + if (ret > 0) + ret = sprintf(buffer, "%x\n", ret); + + return ret; +} + +HYPERVISOR_ATTR_RO(pagesize); + +static ssize_t xen_feature_show(int index, char *buffer) +{ + ssize_t ret; + struct xen_feature_info info; + + info.submap_idx = index; + ret = HYPERVISOR_xen_version(XENVER_get_features, &info); + if (!ret) + ret = sprintf(buffer, "%08x", info.submap); + + return ret; +} + +static ssize_t features_show(struct hyp_sysfs_attr *attr, char *buffer) +{ + ssize_t len; + int i; + + len = 0; + for (i = XENFEAT_NR_SUBMAPS-1; i >= 0; i--) { + int ret = xen_feature_show(i, buffer + len); + if (ret < 0) { + if (len == 0) + len = ret; + break; + } + len += ret; + } + if (len > 0) + buffer[len++] = '\n'; + + return len; +} + +HYPERVISOR_ATTR_RO(features); + +static struct attribute *xen_properties_attrs[] = { + &capabilities_attr.attr, + &changeset_attr.attr, + &virtual_start_attr.attr, + &pagesize_attr.attr, + &features_attr.attr, + NULL +}; + +static struct attribute_group xen_properties_group = { + .name = "properties", + .attrs = xen_properties_attrs, +}; + +static int __init xen_properties_init(void) +{ + return sysfs_create_group(hypervisor_kobj, &xen_properties_group); +} + +static void xen_properties_destroy(void) +{ + sysfs_remove_group(hypervisor_kobj, &xen_properties_group); +} + +static int __init hyper_sysfs_init(void) +{ + int ret; + + if (!xen_domain()) + return -ENODEV; + + ret = xen_sysfs_type_init(); + if (ret) + goto out; + ret = xen_sysfs_version_init(); + if (ret) + goto version_out; + ret = xen_compilation_init(); + if (ret) + goto comp_out; + ret = xen_sysfs_uuid_init(); + if (ret) + goto uuid_out; + ret = xen_properties_init(); + if (ret) + goto prop_out; + + goto out; + +prop_out: + xen_sysfs_uuid_destroy(); +uuid_out: + xen_compilation_destroy(); +comp_out: + xen_sysfs_version_destroy(); +version_out: + xen_sysfs_type_destroy(); +out: + return ret; +} + +static void __exit hyper_sysfs_exit(void) +{ + xen_properties_destroy(); + xen_compilation_destroy(); + xen_sysfs_uuid_destroy(); + xen_sysfs_version_destroy(); + xen_sysfs_type_destroy(); + +} +module_init(hyper_sysfs_init); +module_exit(hyper_sysfs_exit); + +static ssize_t hyp_sysfs_show(struct kobject *kobj, + struct attribute *attr, + char *buffer) +{ + struct hyp_sysfs_attr *hyp_attr; + hyp_attr = container_of(attr, struct hyp_sysfs_attr, attr); + if (hyp_attr->show) + return hyp_attr->show(hyp_attr, buffer); + return 0; +} + +static ssize_t hyp_sysfs_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t len) +{ + struct hyp_sysfs_attr *hyp_attr; + hyp_attr = container_of(attr, struct hyp_sysfs_attr, attr); + if (hyp_attr->store) + return hyp_attr->store(hyp_attr, buffer, len); + return 0; +} + +static struct sysfs_ops hyp_sysfs_ops = { + .show = hyp_sysfs_show, + .store = hyp_sysfs_store, +}; + +static struct kobj_type hyp_sysfs_kobj_type = { + .sysfs_ops = &hyp_sysfs_ops, +}; + +static int __init hypervisor_subsys_init(void) +{ + if (!xen_domain()) + return -ENODEV; + + hypervisor_kobj->ktype = &hyp_sysfs_kobj_type; + return 0; +} +device_initcall(hypervisor_subsys_init); diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index 773d1cf2328..d42e25d5968 100644 --- a/drivers/xen/xenbus/xenbus_probe.c +++ b/drivers/xen/xenbus/xenbus_probe.c @@ -71,6 +71,9 @@ static int xenbus_probe_frontend(const char *type, const char *name); static void xenbus_dev_shutdown(struct device *_dev); +static int xenbus_dev_suspend(struct device *dev, pm_message_t state); +static int xenbus_dev_resume(struct device *dev); + /* If something in array of ids matches this device, return it. */ static const struct xenbus_device_id * match_device(const struct xenbus_device_id *arr, struct xenbus_device *dev) @@ -188,6 +191,9 @@ static struct xen_bus_type xenbus_frontend = { .remove = xenbus_dev_remove, .shutdown = xenbus_dev_shutdown, .dev_attrs = xenbus_dev_attrs, + + .suspend = xenbus_dev_suspend, + .resume = xenbus_dev_resume, }, }; @@ -654,6 +660,7 @@ void xenbus_dev_changed(const char *node, struct xen_bus_type *bus) kfree(root); } +EXPORT_SYMBOL_GPL(xenbus_dev_changed); static void frontend_changed(struct xenbus_watch *watch, const char **vec, unsigned int len) @@ -669,7 +676,7 @@ static struct xenbus_watch fe_watch = { .callback = frontend_changed, }; -static int suspend_dev(struct device *dev, void *data) +static int xenbus_dev_suspend(struct device *dev, pm_message_t state) { int err = 0; struct xenbus_driver *drv; @@ -682,35 +689,14 @@ static int suspend_dev(struct device *dev, void *data) drv = to_xenbus_driver(dev->driver); xdev = container_of(dev, struct xenbus_device, dev); if (drv->suspend) - err = drv->suspend(xdev); + err = drv->suspend(xdev, state); if (err) printk(KERN_WARNING "xenbus: suspend %s failed: %i\n", dev_name(dev), err); return 0; } -static int suspend_cancel_dev(struct device *dev, void *data) -{ - int err = 0; - struct xenbus_driver *drv; - struct xenbus_device *xdev; - - DPRINTK(""); - - if (dev->driver == NULL) - return 0; - drv = to_xenbus_driver(dev->driver); - xdev = container_of(dev, struct xenbus_device, dev); - if (drv->suspend_cancel) - err = drv->suspend_cancel(xdev); - if (err) - printk(KERN_WARNING - "xenbus: suspend_cancel %s failed: %i\n", - dev_name(dev), err); - return 0; -} - -static int resume_dev(struct device *dev, void *data) +static int xenbus_dev_resume(struct device *dev) { int err; struct xenbus_driver *drv; @@ -755,33 +741,6 @@ static int resume_dev(struct device *dev, void *data) return 0; } -void xenbus_suspend(void) -{ - DPRINTK(""); - - bus_for_each_dev(&xenbus_frontend.bus, NULL, NULL, suspend_dev); - xenbus_backend_suspend(suspend_dev); - xs_suspend(); -} -EXPORT_SYMBOL_GPL(xenbus_suspend); - -void xenbus_resume(void) -{ - xb_init_comms(); - xs_resume(); - bus_for_each_dev(&xenbus_frontend.bus, NULL, NULL, resume_dev); - xenbus_backend_resume(resume_dev); -} -EXPORT_SYMBOL_GPL(xenbus_resume); - -void xenbus_suspend_cancel(void) -{ - xs_suspend_cancel(); - bus_for_each_dev(&xenbus_frontend.bus, NULL, NULL, suspend_cancel_dev); - xenbus_backend_resume(suspend_cancel_dev); -} -EXPORT_SYMBOL_GPL(xenbus_suspend_cancel); - /* A flag to determine if xenstored is 'ready' (i.e. has started) */ int xenstored_ready = 0; diff --git a/drivers/xen/xenbus/xenbus_xs.c b/drivers/xen/xenbus/xenbus_xs.c index e325eab4724..eab33f1dbdf 100644 --- a/drivers/xen/xenbus/xenbus_xs.c +++ b/drivers/xen/xenbus/xenbus_xs.c @@ -673,6 +673,8 @@ void xs_resume(void) struct xenbus_watch *watch; char token[sizeof(watch) * 2 + 1]; + xb_init_comms(); + mutex_unlock(&xs_state.response_mutex); mutex_unlock(&xs_state.request_mutex); up_write(&xs_state.transaction_mutex); diff --git a/drivers/xen/xenfs/super.c b/drivers/xen/xenfs/super.c index 515741a8e6b..6559e0c752c 100644 --- a/drivers/xen/xenfs/super.c +++ b/drivers/xen/xenfs/super.c @@ -20,10 +20,27 @@ MODULE_DESCRIPTION("Xen filesystem"); MODULE_LICENSE("GPL"); +static ssize_t capabilities_read(struct file *file, char __user *buf, + size_t size, loff_t *off) +{ + char *tmp = ""; + + if (xen_initial_domain()) + tmp = "control_d\n"; + + return simple_read_from_buffer(buf, size, off, tmp, strlen(tmp)); +} + +static const struct file_operations capabilities_file_ops = { + .read = capabilities_read, +}; + static int xenfs_fill_super(struct super_block *sb, void *data, int silent) { static struct tree_descr xenfs_files[] = { - [2] = {"xenbus", &xenbus_file_ops, S_IRUSR|S_IWUSR}, + [1] = {}, + { "xenbus", &xenbus_file_ops, S_IRUSR|S_IWUSR }, + { "capabilities", &capabilities_file_ops, S_IRUGO }, {""}, }; |