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authorLen Brown <len.brown@intel.com>2011-02-16 01:32:48 -0500
committerLen Brown <len.brown@intel.com>2011-02-17 17:08:48 -0500
commitbfb53ccf1c734b1907df7189eef4c08489827951 (patch)
tree7d93bac0a87b89c9e7f87c4bad2e43fcef6725f1 /arch/x86/include
parent14796fca2bd22acc73dd0887248d003b0f441d08 (diff)
downloadlinux-linaro-android-bfb53ccf1c734b1907df7189eef4c08489827951.tar.gz
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/include')
-rw-r--r--arch/x86/include/asm/msr-index.h1
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 b75eeab2b1e..43a18c77676 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -39,6 +39,7 @@
#define MSR_NHM_SNB_PKG_CST_CFG_CTL 0x000000e2
#define NHM_C3_AUTO_DEMOTE (1UL << 25)
#define NHM_C1_AUTO_DEMOTE (1UL << 26)
+#define ATM_LNC_C6_AUTO_DEMOTE (1UL << 25)
#define MSR_MTRRcap 0x000000fe
#define MSR_IA32_BBL_CR_CTL 0x00000119