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| author | Len Brown <len.brown@intel.com> | 2014-07-31 21:21:24 +0200 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2014-08-15 23:06:14 +0200 |
| commit | 8c058d53f6f2eb0b9cd3bc4ce5c053a64dded671 (patch) | |
| tree | fb657c7092c97ce7452746008c2894ec17e481ae /arch/x86 | |
| parent | Linux 3.16 (diff) | |
| download | linux-8c058d53f6f2eb0b9cd3bc4ce5c053a64dded671.tar.xz linux-8c058d53f6f2eb0b9cd3bc4ce5c053a64dded671.zip | |
intel_idle: Disable Baytrail Core and Module C6 auto-demotion
Power efficiency improves on Baytrail (Intel Atom Processor E3000)
when Linux disables C6 auto-demotion.
Based on work by Srinidhi Kasagar <srinidhi.kasagar@intel.com>.
Signed-off-by: Len Brown <len.brown@intel.com>
Cc: x86@kernel.org
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/uapi/asm/msr-index.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/uapi/asm/msr-index.h b/arch/x86/include/uapi/asm/msr-index.h index fcf2b3ae1bf0..4a7aecd2ea13 100644 --- a/arch/x86/include/uapi/asm/msr-index.h +++ b/arch/x86/include/uapi/asm/msr-index.h @@ -149,6 +149,9 @@ #define MSR_CORE_C1_RES 0x00000660 +#define MSR_CC6_DEMOTION_POLICY_CONFIG 0x00000668 +#define MSR_MC6_DEMOTION_POLICY_CONFIG 0x00000669 + #define MSR_AMD64_MC0_MASK 0xc0010044 #define MSR_IA32_MCx_CTL(x) (MSR_IA32_MC0_CTL + 4*(x)) |