diff options
| author |   Alex Chiang <achiang@hp.com> | 2009-12-20 12:19:19 -0700 |
|---|---|---|
| committer |   Len Brown <len.brown@intel.com> | 2009-12-22 03:24:11 -0500 |
| commit | 407cd87c54e76c266245e8faef8dd4a84b7254fe (patch) | |
| tree | e07067c0d51317a4dc93144f1d16c050a0f5ca89 /arch/x86 | |
| parent | ACPI: processor: introduce arch_has_acpi_pdc (diff) | |
| download | linux-dev-407cd87c54e76c266245e8faef8dd4a84b7254fe.tar.xz linux-dev-407cd87c54e76c266245e8faef8dd4a84b7254fe.zip | |
ACPI: processor: unify arch_acpi_processor_init_pdc
The x86 and ia64 implementations of arch_acpi_processor_init_pdc()
are almost exactly the same. The only difference is in what bits
they set in obj_list buffer.
Combine the boilerplate memory management code, and leave the
arch-specific bit twiddling in separate implementations.
Cc: Tony Luck <tony.luck@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/acpi/processor.c | 34 |
1 files changed, 1 insertions, 33 deletions
diff --git a/arch/x86/kernel/acpi/processor.c b/arch/x86/kernel/acpi/processor.c index bcb6efe08c5d..967860b43f2a 100644 --- a/arch/x86/kernel/acpi/processor.c +++ b/arch/x86/kernel/acpi/processor.c @@ -14,31 +14,7 @@ static void init_intel_pdc(struct acpi_processor *pr, struct cpuinfo_x86 *c) { - struct acpi_object_list *obj_list; - union acpi_object *obj; - u32 *buf; - - /* allocate and initialize pdc. It will be used later. */ - obj_list = kmalloc(sizeof(struct acpi_object_list), GFP_KERNEL); - if (!obj_list) { - printk(KERN_ERR "Memory allocation error\n"); - return; - } - - obj = kmalloc(sizeof(union acpi_object), GFP_KERNEL); - if (!obj) { - printk(KERN_ERR "Memory allocation error\n"); - kfree(obj_list); - return; - } - - buf = kmalloc(12, GFP_KERNEL); - if (!buf) { - printk(KERN_ERR "Memory allocation error\n"); - kfree(obj); - kfree(obj_list); - return; - } + u32 *buf = (u32 *)pr->pdc->pointer->buffer.pointer; buf[0] = ACPI_PDC_REVISION_ID; buf[1] = 1; @@ -62,13 +38,6 @@ static void init_intel_pdc(struct acpi_processor *pr, struct cpuinfo_x86 *c) if (!cpu_has(c, X86_FEATURE_MWAIT)) buf[2] &= ~(ACPI_PDC_C_C2C3_FFH); - obj->type = ACPI_TYPE_BUFFER; - obj->buffer.length = 12; - obj->buffer.pointer = (u8 *) buf; - obj_list->count = 1; - obj_list->pointer = obj; - pr->pdc = obj_list; - return; } @@ -78,7 +47,6 @@ void arch_acpi_processor_init_pdc(struct acpi_processor *pr) { struct cpuinfo_x86 *c = &cpu_data(pr->id); - pr->pdc = NULL; init_intel_pdc(pr, c); return; |