diff options
| -rw-r--r-- | arch/x86_64/kernel/pci-calgary.c | 53 | ||||
| -rw-r--r-- | arch/x86_64/kernel/tce.c | 10 | ||||
| -rw-r--r-- | include/asm-x86_64/tce.h | 1 |
3 files changed, 28 insertions, 36 deletions
diff --git a/arch/x86_64/kernel/pci-calgary.c b/arch/x86_64/kernel/pci-calgary.c index 146924ba5df..96f6a866afa 100644 --- a/arch/x86_64/kernel/pci-calgary.c +++ b/arch/x86_64/kernel/pci-calgary.c @@ -111,17 +111,17 @@ static const unsigned long phb_offsets[] = { 0xB000 /* PHB3 */ }; -static char bus_to_phb[MAX_PHB_BUS_NUM]; -void* tce_table_kva[MAX_PHB_BUS_NUM]; unsigned int specified_table_size = TCE_TABLE_SIZE_UNSPECIFIED; static int translate_empty_slots __read_mostly = 0; static int calgary_detected __read_mostly = 0; -/* - * the bitmap of PHBs the user requested that we disable - * translation on. - */ -static DECLARE_BITMAP(translation_disabled, MAX_PHB_BUS_NUM); +struct calgary_bus_info { + void *tce_space; + int translation_disabled; + signed char phbid; +}; + +static struct calgary_bus_info bus_info[MAX_PHB_BUS_NUM] = { { NULL, 0, 0 }, }; static void tce_cache_blast(struct iommu_table *tbl); @@ -149,7 +149,7 @@ static inline unsigned int num_dma_pages(unsigned long dma, unsigned int dmalen) static inline int translate_phb(struct pci_dev* dev) { - int disabled = test_bit(dev->bus->number, translation_disabled); + int disabled = bus_info[dev->bus->number].translation_disabled; return !disabled; } @@ -454,7 +454,7 @@ static struct dma_mapping_ops calgary_dma_ops = { static inline int busno_to_phbid(unsigned char num) { - return bus_to_phb[num]; + return bus_info[num].phbid; } static inline unsigned long split_queue_offset(unsigned char num) @@ -631,6 +631,10 @@ static int __init calgary_setup_tar(struct pci_dev *dev, void __iomem *bbar) if (ret) return ret; + tbl = dev->sysdata; + tbl->it_base = (unsigned long)bus_info[dev->bus->number].tce_space; + tce_free(tbl, 0, tbl->it_size); + calgary_reserve_regions(dev); /* set TARs for each PHB */ @@ -824,7 +828,7 @@ static int __init calgary_init(void) calgary_init_one_nontraslated(dev); continue; } - if (!tce_table_kva[dev->bus->number] && !translate_empty_slots) { + if (!bus_info[dev->bus->number].tce_space && !translate_empty_slots) { pci_dev_put(dev); continue; } @@ -844,7 +848,7 @@ error: pci_dev_put(dev); continue; } - if (!tce_table_kva[dev->bus->number] && !translate_empty_slots) + if (!bus_info[dev->bus->number].tce_space && !translate_empty_slots) continue; calgary_disable_translation(dev); calgary_free_tar(dev); @@ -894,9 +898,8 @@ void __init detect_calgary(void) for (bus = 0; bus < MAX_PHB_BUS_NUM; bus++) { int dev; - - tce_table_kva[bus] = NULL; - bus_to_phb[bus] = -1; + struct calgary_bus_info *info = &bus_info[bus]; + info->phbid = -1; if (read_pci_config(bus, 0, 0, 0) != PCI_VENDOR_DEVICE_ID_CALGARY) continue; @@ -907,12 +910,9 @@ void __init detect_calgary(void) */ phb = (phb + 1) % PHBS_PER_CALGARY; - if (test_bit(bus, translation_disabled)) { - printk(KERN_INFO "Calgary: translation is disabled for " - "PHB 0x%x\n", bus); - /* skip this phb, don't allocate a tbl for it */ + if (info->translation_disabled) continue; - } + /* * Scan the slots of the PCI bus to see if there is a device present. * The parent bus will be the zero-ith device, so start at 1. @@ -923,8 +923,8 @@ void __init detect_calgary(void) tbl = alloc_tce_table(); if (!tbl) goto cleanup; - tce_table_kva[bus] = tbl; - bus_to_phb[bus] = phb; + info->tce_space = tbl; + info->phbid = phb; calgary_found = 1; break; } @@ -940,9 +940,12 @@ void __init detect_calgary(void) return; cleanup: - for (--bus; bus >= 0; --bus) - if (tce_table_kva[bus]) - free_tce_table(tce_table_kva[bus]); + for (--bus; bus >= 0; --bus) { + struct calgary_bus_info *info = &bus_info[bus]; + + if (info->tce_space) + free_tce_table(info->tce_space); + } } int __init calgary_iommu_init(void) @@ -1016,7 +1019,7 @@ static int __init calgary_parse_options(char *p) if (bridge < MAX_PHB_BUS_NUM) { printk(KERN_INFO "Calgary: disabling " "translation for PHB 0x%x\n", bridge); - set_bit(bridge, translation_disabled); + bus_info[bridge].translation_disabled = 1; } } diff --git a/arch/x86_64/kernel/tce.c b/arch/x86_64/kernel/tce.c index 0905ce6b9b3..cbabfdf78e0 100644 --- a/arch/x86_64/kernel/tce.c +++ b/arch/x86_64/kernel/tce.c @@ -106,14 +106,6 @@ static int tce_table_setparms(struct pci_dev *dev, struct iommu_table *tbl) /* set the tce table size - measured in entries */ tbl->it_size = table_size_to_number_of_entries(specified_table_size); - tbl->it_base = (unsigned long)tce_table_kva[dev->bus->number]; - if (!tbl->it_base) { - printk(KERN_ERR "Calgary: iommu_table_setparms: " - "no table allocated?!\n"); - ret = -ENOMEM; - goto done; - } - /* * number of bytes needed for the bitmap size in number of * entries; we need one bit per entry @@ -162,8 +154,6 @@ int build_tce_table(struct pci_dev *dev, void __iomem *bbar) if (ret) goto free_tbl; - tce_free(tbl, 0, tbl->it_size); - tbl->bbar = bbar; /* diff --git a/include/asm-x86_64/tce.h b/include/asm-x86_64/tce.h index 53e9a68b333..dbb047febc5 100644 --- a/include/asm-x86_64/tce.h +++ b/include/asm-x86_64/tce.h @@ -24,7 +24,6 @@ #ifndef _ASM_X86_64_TCE_H #define _ASM_X86_64_TCE_H -extern void* tce_table_kva[]; extern unsigned int specified_table_size; struct iommu_table; |