diff options
Diffstat (limited to 'arch/ia64/sn/kernel')
| -rw-r--r-- | arch/ia64/sn/kernel/Makefile | 2 | ||||
| -rw-r--r-- | arch/ia64/sn/kernel/irq.c | 101 | ||||
| -rw-r--r-- | arch/ia64/sn/kernel/msi_sn.c | 32 | ||||
| -rw-r--r-- | arch/ia64/sn/kernel/sn2/Makefile | 2 | ||||
| -rw-r--r-- | arch/ia64/sn/kernel/sn2/sn_proc_fs.c | 42 |
5 files changed, 48 insertions, 131 deletions
diff --git a/arch/ia64/sn/kernel/Makefile b/arch/ia64/sn/kernel/Makefile index 0591038735a..d27df1d45da 100644 --- a/arch/ia64/sn/kernel/Makefile +++ b/arch/ia64/sn/kernel/Makefile @@ -7,7 +7,7 @@ # Copyright (C) 1999,2001-2006,2008 Silicon Graphics, Inc. All Rights Reserved. # -EXTRA_CFLAGS += -Iarch/ia64/sn/include +ccflags-y := -Iarch/ia64/sn/include obj-y += setup.o bte.o bte_error.o irq.o mca.o idle.o \ huberror.o io_acpi_init.o io_common.o \ diff --git a/arch/ia64/sn/kernel/irq.c b/arch/ia64/sn/kernel/irq.c index 13c15d96809..81a1f4e6bcd 100644 --- a/arch/ia64/sn/kernel/irq.c +++ b/arch/ia64/sn/kernel/irq.c @@ -23,11 +23,9 @@ #include <asm/sn/sn_sal.h> #include <asm/sn/sn_feature_sets.h> -static void force_interrupt(int irq); static void register_intr_pda(struct sn_irq_info *sn_irq_info); static void unregister_intr_pda(struct sn_irq_info *sn_irq_info); -int sn_force_interrupt_flag = 1; extern int sn_ioif_inited; struct list_head **sn_irq_lh; static DEFINE_SPINLOCK(sn_irq_info_lock); /* non-IRQ lock */ @@ -78,62 +76,40 @@ u64 sn_intr_redirect(nasid_t local_nasid, int local_widget, return ret_stuff.status; } -static unsigned int sn_startup_irq(unsigned int irq) +static unsigned int sn_startup_irq(struct irq_data *data) { return 0; } -static void sn_shutdown_irq(unsigned int irq) +static void sn_shutdown_irq(struct irq_data *data) { } extern void ia64_mca_register_cpev(int); -static void sn_disable_irq(unsigned int irq) +static void sn_disable_irq(struct irq_data *data) { - if (irq == local_vector_to_irq(IA64_CPE_VECTOR)) + if (data->irq == local_vector_to_irq(IA64_CPE_VECTOR)) ia64_mca_register_cpev(0); } -static void sn_enable_irq(unsigned int irq) +static void sn_enable_irq(struct irq_data *data) { - if (irq == local_vector_to_irq(IA64_CPE_VECTOR)) - ia64_mca_register_cpev(irq); + if (data->irq == local_vector_to_irq(IA64_CPE_VECTOR)) + ia64_mca_register_cpev(data->irq); } -static void sn_ack_irq(unsigned int irq) +static void sn_ack_irq(struct irq_data *data) { u64 event_occurred, mask; + unsigned int irq = data->irq & 0xff; - irq = irq & 0xff; event_occurred = HUB_L((u64*)LOCAL_MMR_ADDR(SH_EVENT_OCCURRED)); mask = event_occurred & SH_ALL_INT_MASK; HUB_S((u64*)LOCAL_MMR_ADDR(SH_EVENT_OCCURRED_ALIAS), mask); __set_bit(irq, (volatile void *)pda->sn_in_service_ivecs); - move_native_irq(irq); -} - -static void sn_end_irq(unsigned int irq) -{ - int ivec; - u64 event_occurred; - - ivec = irq & 0xff; - if (ivec == SGI_UART_VECTOR) { - event_occurred = HUB_L((u64*)LOCAL_MMR_ADDR (SH_EVENT_OCCURRED)); - /* If the UART bit is set here, we may have received an - * interrupt from the UART that the driver missed. To - * make sure, we IPI ourselves to force us to look again. - */ - if (event_occurred & SH_EVENT_OCCURRED_UART_INT_MASK) { - platform_send_ipi(smp_processor_id(), SGI_UART_VECTOR, - IA64_IPI_DM_INT, 0); - } - } - __clear_bit(ivec, (volatile void *)pda->sn_in_service_ivecs); - if (sn_force_interrupt_flag) - force_interrupt(irq); + irq_move_irq(data); } static void sn_irq_info_free(struct rcu_head *head); @@ -228,9 +204,11 @@ finish_up: return new_irq_info; } -static int sn_set_affinity_irq(unsigned int irq, const struct cpumask *mask) +static int sn_set_affinity_irq(struct irq_data *data, + const struct cpumask *mask, bool force) { struct sn_irq_info *sn_irq_info, *sn_irq_info_safe; + unsigned int irq = data->irq; nasid_t nasid; int slice; @@ -249,7 +227,7 @@ void sn_set_err_irq_affinity(unsigned int irq) { /* * On systems which support CPU disabling (SHub2), all error interrupts - * are targetted at the boot CPU. + * are targeted at the boot CPU. */ if (is_shub2() && sn_prom_feature_available(PRF_CPU_DISABLE_SUPPORT)) set_irq_affinity_info(irq, cpu_physical_id(0), 0); @@ -259,26 +237,25 @@ void sn_set_err_irq_affinity(unsigned int irq) { } #endif static void -sn_mask_irq(unsigned int irq) +sn_mask_irq(struct irq_data *data) { } static void -sn_unmask_irq(unsigned int irq) +sn_unmask_irq(struct irq_data *data) { } struct irq_chip irq_type_sn = { - .name = "SN hub", - .startup = sn_startup_irq, - .shutdown = sn_shutdown_irq, - .enable = sn_enable_irq, - .disable = sn_disable_irq, - .ack = sn_ack_irq, - .end = sn_end_irq, - .mask = sn_mask_irq, - .unmask = sn_unmask_irq, - .set_affinity = sn_set_affinity_irq + .name = "SN hub", + .irq_startup = sn_startup_irq, + .irq_shutdown = sn_shutdown_irq, + .irq_enable = sn_enable_irq, + .irq_disable = sn_disable_irq, + .irq_ack = sn_ack_irq, + .irq_mask = sn_mask_irq, + .irq_unmask = sn_unmask_irq, + .irq_set_affinity = sn_set_affinity_irq }; ia64_vector sn_irq_to_vector(int irq) @@ -296,15 +273,13 @@ unsigned int sn_local_vector_to_irq(u8 vector) void sn_irq_init(void) { int i; - struct irq_desc *base_desc = irq_desc; ia64_first_device_vector = IA64_SN2_FIRST_DEVICE_VECTOR; ia64_last_device_vector = IA64_SN2_LAST_DEVICE_VECTOR; for (i = 0; i < NR_IRQS; i++) { - if (base_desc[i].chip == &no_irq_chip) { - base_desc[i].chip = &irq_type_sn; - } + if (irq_get_chip(i) == &no_irq_chip) + irq_set_chip(i, &irq_type_sn); } } @@ -378,7 +353,6 @@ void sn_irq_fixup(struct pci_dev *pci_dev, struct sn_irq_info *sn_irq_info) int cpu = nasid_slice_to_cpuid(nasid, slice); #ifdef CONFIG_SMP int cpuphys; - struct irq_desc *desc; #endif pci_dev_get(pci_dev); @@ -395,12 +369,11 @@ void sn_irq_fixup(struct pci_dev *pci_dev, struct sn_irq_info *sn_irq_info) #ifdef CONFIG_SMP cpuphys = cpu_physical_id(cpu); set_irq_affinity_info(sn_irq_info->irq_irq, cpuphys, 0); - desc = irq_to_desc(sn_irq_info->irq_irq); /* * Affinity was set by the PROM, prevent it from * being reset by the request_irq() path. */ - desc->status |= IRQ_AFFINITY_SET; + irqd_mark_affinity_was_set(irq_get_irq_data(sn_irq_info->irq_irq)); #endif } @@ -439,25 +412,11 @@ sn_call_force_intr_provider(struct sn_irq_info *sn_irq_info) pci_provider = sn_pci_provider[sn_irq_info->irq_bridge_type]; /* Don't force an interrupt if the irq has been disabled */ - if (!(irq_desc[sn_irq_info->irq_irq].status & IRQ_DISABLED) && + if (!irqd_irq_disabled(irq_get_irq_data(sn_irq_info->irq_irq)) && pci_provider && pci_provider->force_interrupt) (*pci_provider->force_interrupt)(sn_irq_info); } -static void force_interrupt(int irq) -{ - struct sn_irq_info *sn_irq_info; - - if (!sn_ioif_inited) - return; - - rcu_read_lock(); - list_for_each_entry_rcu(sn_irq_info, sn_irq_lh[irq], list) - sn_call_force_intr_provider(sn_irq_info); - - rcu_read_unlock(); -} - /* * Check for lost interrupts. If the PIC int_status reg. says that * an interrupt has been sent, but not handled, and the interrupt @@ -476,7 +435,7 @@ static void sn_check_intr(int irq, struct sn_irq_info *sn_irq_info) /* * Bridge types attached to TIO (anything but PIC) do not need this WAR * since they do not target Shub II interrupt registers. If that - * ever changes, this check needs to accomodate. + * ever changes, this check needs to accommodate. */ if (sn_irq_info->irq_bridge_type != PCIIO_ASIC_TYPE_PIC) return; diff --git a/arch/ia64/sn/kernel/msi_sn.c b/arch/ia64/sn/kernel/msi_sn.c index a5e500f0285..2b98b9e088d 100644 --- a/arch/ia64/sn/kernel/msi_sn.c +++ b/arch/ia64/sn/kernel/msi_sn.c @@ -144,16 +144,16 @@ int sn_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *entry) */ msg.data = 0x100 + irq; - set_irq_msi(irq, entry); + irq_set_msi_desc(irq, entry); write_msi_msg(irq, &msg); - set_irq_chip_and_handler(irq, &sn_msi_chip, handle_edge_irq); + irq_set_chip_and_handler(irq, &sn_msi_chip, handle_edge_irq); return 0; } #ifdef CONFIG_SMP -static int sn_set_msi_irq_affinity(unsigned int irq, - const struct cpumask *cpu_mask) +static int sn_set_msi_irq_affinity(struct irq_data *data, + const struct cpumask *cpu_mask, bool force) { struct msi_msg msg; int slice; @@ -164,7 +164,7 @@ static int sn_set_msi_irq_affinity(unsigned int irq, struct sn_irq_info *sn_irq_info; struct sn_irq_info *new_irq_info; struct sn_pcibus_provider *provider; - unsigned int cpu; + unsigned int cpu, irq = data->irq; cpu = cpumask_first(cpu_mask); sn_irq_info = sn_msi_info[irq].sn_irq_info; @@ -206,33 +206,33 @@ static int sn_set_msi_irq_affinity(unsigned int irq, msg.address_lo = (u32)(bus_addr & 0x00000000ffffffff); write_msi_msg(irq, &msg); - cpumask_copy(irq_desc[irq].affinity, cpu_mask); + cpumask_copy(data->affinity, cpu_mask); return 0; } #endif /* CONFIG_SMP */ -static void sn_ack_msi_irq(unsigned int irq) +static void sn_ack_msi_irq(struct irq_data *data) { - move_native_irq(irq); + irq_move_irq(data); ia64_eoi(); } -static int sn_msi_retrigger_irq(unsigned int irq) +static int sn_msi_retrigger_irq(struct irq_data *data) { - unsigned int vector = irq; + unsigned int vector = data->irq; ia64_resend_irq(vector); return 1; } static struct irq_chip sn_msi_chip = { - .name = "PCI-MSI", - .irq_mask = mask_msi_irq, - .irq_unmask = unmask_msi_irq, - .ack = sn_ack_msi_irq, + .name = "PCI-MSI", + .irq_mask = mask_msi_irq, + .irq_unmask = unmask_msi_irq, + .irq_ack = sn_ack_msi_irq, #ifdef CONFIG_SMP - .set_affinity = sn_set_msi_irq_affinity, + .irq_set_affinity = sn_set_msi_irq_affinity, #endif - .retrigger = sn_msi_retrigger_irq, + .irq_retrigger = sn_msi_retrigger_irq, }; diff --git a/arch/ia64/sn/kernel/sn2/Makefile b/arch/ia64/sn/kernel/sn2/Makefile index 08e6565dc90..3d09108d427 100644 --- a/arch/ia64/sn/kernel/sn2/Makefile +++ b/arch/ia64/sn/kernel/sn2/Makefile @@ -9,7 +9,7 @@ # sn2 specific kernel files # -EXTRA_CFLAGS += -Iarch/ia64/sn/include +ccflags-y := -Iarch/ia64/sn/include obj-y += cache.o io.o ptc_deadlock.o sn2_smp.o sn_proc_fs.o \ prominfo_proc.o timer.o timer_interrupt.o sn_hwperf.o diff --git a/arch/ia64/sn/kernel/sn2/sn_proc_fs.c b/arch/ia64/sn/kernel/sn2/sn_proc_fs.c index c76d8dc3aea..7aab87f4806 100644 --- a/arch/ia64/sn/kernel/sn2/sn_proc_fs.c +++ b/arch/ia64/sn/kernel/sn2/sn_proc_fs.c @@ -45,38 +45,6 @@ static int licenseID_open(struct inode *inode, struct file *file) return single_open(file, licenseID_show, NULL); } -/* - * Enable forced interrupt by default. - * When set, the sn interrupt handler writes the force interrupt register on - * the bridge chip. The hardware will then send an interrupt message if the - * interrupt line is active. This mimics a level sensitive interrupt. - */ -extern int sn_force_interrupt_flag; - -static int sn_force_interrupt_show(struct seq_file *s, void *p) -{ - seq_printf(s, "Force interrupt is %s\n", - sn_force_interrupt_flag ? "enabled" : "disabled"); - return 0; -} - -static ssize_t sn_force_interrupt_write_proc(struct file *file, - const char __user *buffer, size_t count, loff_t *data) -{ - char val; - - if (copy_from_user(&val, buffer, 1)) - return -EFAULT; - - sn_force_interrupt_flag = (val == '0') ? 0 : 1; - return count; -} - -static int sn_force_interrupt_open(struct inode *inode, struct file *file) -{ - return single_open(file, sn_force_interrupt_show, NULL); -} - static int coherence_id_show(struct seq_file *s, void *p) { seq_printf(s, "%d\n", partition_coherence_id()); @@ -114,14 +82,6 @@ static const struct file_operations proc_license_id_fops = { .release = single_release, }; -static const struct file_operations proc_sn_force_intr_fops = { - .open = sn_force_interrupt_open, - .read = seq_read, - .write = sn_force_interrupt_write_proc, - .llseek = seq_lseek, - .release = single_release, -}; - static const struct file_operations proc_coherence_id_fops = { .open = coherence_id_open, .read = seq_read, @@ -149,8 +109,6 @@ void register_sn_procfs(void) proc_create("system_serial_number", 0444, sgi_proc_dir, &proc_system_sn_fops); proc_create("licenseID", 0444, sgi_proc_dir, &proc_license_id_fops); - proc_create("sn_force_interrupt", 0644, sgi_proc_dir, - &proc_sn_force_intr_fops); proc_create("coherence_id", 0444, sgi_proc_dir, &proc_coherence_id_fops); proc_create("sn_topology", 0444, sgi_proc_dir, &proc_sn_topo_fops); |