commit 8c058d53f6f2eb0b9cd3bc4ce5c053a64dded671
author Len Brown <len.brown@intel.com> Thu Jul 31 15:21:24 2014 -0400
committer Len Brown <len.brown@intel.com> Fri Aug 15 17:06:14 2014 -0400
tree fb657c7092c97ce7452746008c2894ec17e481ae
parent 19583ca584d6f574384e17fe7613dfaeadcdc4a6

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

arch/x86/include/uapi/asm/msr-index.h

diff --git a/arch/x86/include/uapi/asm/msr-index.h b/arch/x86/include/uapi/asm/msr-index.h
index fcf2b3a..4a7aecd 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))