| commit | 5b53496a5ad79e91052f72761a7c5516b069bc99 | |
| author | Zhao Yakui <yakui.zhao@intel.com> | |
| Tue, 17 Jun 2008 06:39:59 +0000 (17 14:39 +0800) | ||
| committer | Andi Kleen <andi@basil.nowhere.org> | |
| Wed, 16 Jul 2008 21:27:04 +0000 (16 23:27 +0200) | ||
| tree | 2bb559bf2edf363e2b6efa577ca8f2dfd817339d | treesnapshot (tar.gz zip) |
| parent | 71b58cbb0c30d1f78636a48c4721529449d6ea37 | commitdiff |
ACPI: Disable the C2C3_FFH access mode HW has no MWAIT support
991528d7348667924176f3e29addea0675298944
(ACPI: Processor native C-states using MWAIT)
started passing C2C3_FFH to _PDC to tell the BIOS
that Linux supports MWAIT for deep C-states.
However, we should first double check with the hardware
that it actually supports MWAIT before potentially exposing
a BIOS bug of an MWAIT _CST on HW that doesn't support MWAIT.
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>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
991528d7348667924176f3e29addea0675298944
(ACPI: Processor native C-states using MWAIT)
started passing C2C3_FFH to _PDC to tell the BIOS
that Linux supports MWAIT for deep C-states.
However, we should first double check with the hardware
that it actually supports MWAIT before potentially exposing
a BIOS bug of an MWAIT _CST on HW that doesn't support MWAIT.
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>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
| arch/x86/kernel/acpi/processor.c | diffblobblamehistory |