diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-07-18 12:20:23 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-18 12:20:23 +0200 |
| commit | cd569ef5d6ff9f43e9504f1ffc7fdbe356518149 (patch) | |
| tree | 9a4ab5e600fd09e991aa1fbb69adb1c7950898a4 /arch/x86/kernel/acpi/processor.c | |
| parent | 6879827f4e08da219c99b91e4e1d793a924103e3 (diff) | |
| parent | 5b664cb235e97afbf34db9c4d77f08ebd725335e (diff) | |
Merge branch 'linus' into x86/urgent
Diffstat (limited to 'arch/x86/kernel/acpi/processor.c')
| -rw-r--r-- | arch/x86/kernel/acpi/processor.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kernel/acpi/processor.c b/arch/x86/kernel/acpi/processor.c index de2d2e4ebad9..7c074eec39fb 100644 --- a/arch/x86/kernel/acpi/processor.c +++ b/arch/x86/kernel/acpi/processor.c @@ -56,6 +56,12 @@ static void init_intel_pdc(struct acpi_processor *pr, struct cpuinfo_x86 *c) if (cpu_has(c, X86_FEATURE_ACPI)) buf[2] |= ACPI_PDC_T_FFH; + /* + * If mwait/monitor is unsupported, C2/C3_FFH will be disabled + */ + 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; |