A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 19:21:31 -04:00
Code Issues Projects Releases Packages Wiki Activity

ACPI: processor: unify arch_acpi_processor_init_pdc

Browse source 
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 <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Signed-off-by: Alex Chiang <[email protected]>
Signed-off-by: Len Brown <[email protected]>
This commit is contained in:
Alex Chiang 2009-12-20 12:19:19 -07:00 • committed by Len Brown
commit 407cd87c54
3 changed files with 46 additions and 67 deletions
Download patch file Download diff file Expand all files Collapse all files

45
drivers/acpi/processor_pdc.c
View file

@ -33,6 +33,49 @@ static struct dmi_system_id __cpuinitdata processor_idle_dmi_table[] = {
{},
};
static void acpi_processor_init_pdc(struct acpi_processor *pr)
{
struct acpi_object_list *obj_list;
union acpi_object *obj;
u32 *buf;
pr->pdc = NULL;
/* 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;
}
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;
/* Now let the arch do the bit-twiddling to buf[] */
arch_acpi_processor_init_pdc(pr);
return;
}
/*
* _PDC is required for a BIOS-OS handshake for most of the newer
* ACPI processor features.
@ -72,7 +115,7 @@ void acpi_processor_set_pdc(struct acpi_processor *pr)
if (arch_has_acpi_pdc() == false)
return;
arch_acpi_processor_init_pdc(pr);
acpi_processor_init_pdc(pr);
acpi_processor_eval_pdc(pr);
arch_acpi_processor_cleanup_pdc(pr);
}