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ACPI: processor: factor out common _PDC settings

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Both x86 and ia64 initialize _PDC with mostly common bit settings.

Factor out the common settings and leave the arch-specific ones alone.

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 12:19:24 -07:00 • committed by Len Brown
commit 08ea48a326
3 changed files with 13 additions and 18 deletions
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11
drivers/acpi/processor_pdc.c
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@ -33,6 +33,15 @@ static struct dmi_system_id __cpuinitdata processor_idle_dmi_table[] = {
{},
};
static void acpi_set_pdc_bits(u32 *buf)
{
buf[0] = ACPI_PDC_REVISION_ID;
buf[1] = 1;
/* Enable coordination with firmware's _TSD info */
buf[2] = ACPI_PDC_SMP_T_SWCOORD;
}
static void acpi_processor_init_pdc(struct acpi_processor *pr)
{
struct acpi_object_list *obj_list;
@ -63,6 +72,8 @@ static void acpi_processor_init_pdc(struct acpi_processor *pr)
return;
}
acpi_set_pdc_bits(buf);
obj->type = ACPI_TYPE_BUFFER;
obj->buffer.length = 12;
obj->buffer.pointer = (u8 *) buf;