diff options
| author | Len Brown <len.brown@intel.com> | 2011-02-16 01:32:48 -0500 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2011-02-17 17:08:48 -0500 |
| commit | bfb53ccf1c734b1907df7189eef4c08489827951 (patch) | |
| tree | 7d93bac0a87b89c9e7f87c4bad2e43fcef6725f1 /arch/x86 | |
| parent | 14796fca2bd22acc73dd0887248d003b0f441d08 (diff) | |
intel_idle: disable Atom/Lincroft HW C-state auto-demotion
Just as we had to disable auto-demotion for NHM/WSM,
we need to do the same for Atom (Lincroft version).
In particular, auto-demotion will prevent Lincroft
from entering the S0i3 idle power saving state.
https://bugzilla.kernel.org/show_bug.cgi?id=25252
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/msr-index.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h index b75eeab2b1ea..43a18c77676d 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h | |||
| @@ -39,6 +39,7 @@ | |||
| 39 | #define MSR_NHM_SNB_PKG_CST_CFG_CTL 0x000000e2 | 39 | #define MSR_NHM_SNB_PKG_CST_CFG_CTL 0x000000e2 |
| 40 | #define NHM_C3_AUTO_DEMOTE (1UL << 25) | 40 | #define NHM_C3_AUTO_DEMOTE (1UL << 25) |
| 41 | #define NHM_C1_AUTO_DEMOTE (1UL << 26) | 41 | #define NHM_C1_AUTO_DEMOTE (1UL << 26) |
| 42 | #define ATM_LNC_C6_AUTO_DEMOTE (1UL << 25) | ||
| 42 | 43 | ||
| 43 | #define MSR_MTRRcap 0x000000fe | 44 | #define MSR_MTRRcap 0x000000fe |
| 44 | #define MSR_IA32_BBL_CR_CTL 0x00000119 | 45 | #define MSR_IA32_BBL_CR_CTL 0x00000119 |