diff options
| author | Zhao Yakui <yakui.zhao@intel.com> | 2007-11-15 17:06:36 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2007-11-16 21:46:25 -0500 |
| commit | f79f06ab9f86d7203006d2ec8992ac80df36a34e (patch) | |
| tree | e7436b83e6315c1c28dd6cbe7fac6c0decd4ecea /arch/x86 | |
| parent | 0ac3c571315a53c14d2733564f14ebdb911fe903 (diff) | |
ACPI: Enable MSR (FixedHW) support for T-States
Add throttling control via MSR when T-states uses
the FixHW Control Status registers.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/acpi/processor.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/acpi/processor.c b/arch/x86/kernel/acpi/processor.c index f63e5ff0aca..a25db514c71 100644 --- a/arch/x86/kernel/acpi/processor.c +++ b/arch/x86/kernel/acpi/processor.c @@ -49,6 +49,9 @@ static void init_intel_pdc(struct acpi_processor *pr, struct cpuinfo_x86 *c) if (cpu_has(c, X86_FEATURE_EST)) buf[2] |= ACPI_PDC_EST_CAPABILITY_SWSMP; + if (cpu_has(c, X86_FEATURE_ACPI)) + buf[2] |= ACPI_PDC_T_FFH; + obj->type = ACPI_TYPE_BUFFER; obj->buffer.length = 12; obj->buffer.pointer = (u8 *) buf; |