From 3948ec9406f9a60a43d63f23f6f5284db6529b9c Mon Sep 17 00:00:00 2001 From: John Keller Date: Fri, 22 Dec 2006 11:50:04 -0600 Subject: ACPI: Altix: ACPI _PRT support Provide ACPI _PRT support for SN Altix systems. The SN Altix platform does not conform to the IOSAPIC IRQ routing model, so a new acpi_irq_model (ACPI_IRQ_MODEL_PLATFORM) has been defined. The SN platform specific code sets acpi_irq_model to this new value, and keys off of it in acpi_register_gsi() to avoid the iosapic code path. Signed-off-by: John Keller Signed-off-by: Len Brown --- arch/ia64/kernel/acpi.c | 3 +++ arch/ia64/sn/kernel/io_acpi_init.c | 3 +++ 2 files changed, 6 insertions(+) (limited to 'arch') diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c index 73ef4a85b861..ef2fe474f107 100644 --- a/arch/ia64/kernel/acpi.c +++ b/arch/ia64/kernel/acpi.c @@ -590,6 +590,9 @@ void __init acpi_numa_arch_fixup(void) */ int acpi_register_gsi(u32 gsi, int triggering, int polarity) { + if (acpi_irq_model == ACPI_IRQ_MODEL_PLATFORM) + return gsi; + if (has_8259 && gsi < 16) return isa_irq_to_vector(gsi); diff --git a/arch/ia64/sn/kernel/io_acpi_init.c b/arch/ia64/sn/kernel/io_acpi_init.c index 99d7f278612a..cb96b4ea7df6 100644 --- a/arch/ia64/sn/kernel/io_acpi_init.c +++ b/arch/ia64/sn/kernel/io_acpi_init.c @@ -223,6 +223,9 @@ sn_io_acpi_init(void) u64 result; s64 status; + /* SN Altix does not follow the IOSAPIC IRQ routing model */ + acpi_irq_model = ACPI_IRQ_MODEL_PLATFORM; + acpi_bus_register_driver(&acpi_sn_hubdev_driver); status = sal_ioif_init(&result); if (status || result) -- cgit v1.2.3-59-g8ed1b From 5d65131fa8d333d4575e7dfe5a05d3a9fa4a687e Mon Sep 17 00:00:00 2001 From: Venkatesh Pallipadi Date: Wed, 10 Jan 2007 23:08:38 -0500 Subject: ACPI: rename cstate_entry_s to cstate_entry style change only. Signed-off-by: Len Brown --- arch/i386/kernel/acpi/cstate.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/i386/kernel/acpi/cstate.c b/arch/i386/kernel/acpi/cstate.c index 12e937c1ce4b..2d39f55d29a8 100644 --- a/arch/i386/kernel/acpi/cstate.c +++ b/arch/i386/kernel/acpi/cstate.c @@ -47,13 +47,13 @@ EXPORT_SYMBOL(acpi_processor_power_init_bm_check); /* The code below handles cstate entry with monitor-mwait pair on Intel*/ -struct cstate_entry_s { +struct cstate_entry { struct { unsigned int eax; unsigned int ecx; } states[ACPI_PROCESSOR_MAX_POWER]; }; -static struct cstate_entry_s *cpu_cstate_entry; /* per CPU ptr */ +static struct cstate_entry *cpu_cstate_entry; /* per CPU ptr */ static short mwait_supported[ACPI_PROCESSOR_MAX_POWER]; @@ -71,7 +71,7 @@ static short mwait_supported[ACPI_PROCESSOR_MAX_POWER]; int acpi_processor_ffh_cstate_probe(unsigned int cpu, struct acpi_processor_cx *cx, struct acpi_power_register *reg) { - struct cstate_entry_s *percpu_entry; + struct cstate_entry *percpu_entry; struct cpuinfo_x86 *c = cpu_data + cpu; cpumask_t saved_mask; @@ -136,7 +136,7 @@ EXPORT_SYMBOL_GPL(acpi_processor_ffh_cstate_probe); void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx *cx) { unsigned int cpu = smp_processor_id(); - struct cstate_entry_s *percpu_entry; + struct cstate_entry *percpu_entry; percpu_entry = per_cpu_ptr(cpu_cstate_entry, cpu); mwait_idle_with_hints(percpu_entry->states[cx->index].eax, @@ -150,7 +150,7 @@ static int __init ffh_cstate_init(void) if (c->x86_vendor != X86_VENDOR_INTEL) return -1; - cpu_cstate_entry = alloc_percpu(struct cstate_entry_s); + cpu_cstate_entry = alloc_percpu(struct cstate_entry); return 0; } -- cgit v1.2.3-59-g8ed1b