[coreboot-gerrit] Patch set updated for coreboot: soc/intel: Add MSR to support enabling turbo frequency

[Shaunak Saha (shaunak.saha@intel.com)]

Shaunak Saha (shaunak.saha at intel.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/17211

-gerrit

commit 67e8ae752a164f4a08a120c1e8d710156c0ed0d0
Author: Shaunak Saha <shaunak.saha at intel.com>
Date:   Wed Nov 2 10:52:23 2016 -0700

    soc/intel: Add MSR to support enabling turbo frequency
    
    This patch adds definition for IA32_PERF_CTL and
    FREQ_LIMIT_RATIO MSR's. FREQ_LIMIT_RATIO register allows
    to determine the ratio limits to be used to limit frequency.
    PERF_CTL is Performance Control MSR. BIOS makes request
    for a new Performance state (P-state) by writing to this MSR.
    
    BUG=chrome-os-partner:58158
    BRANCH=None
    
    Change-Id: I50a792accbaab1bff313fd00574814d7dbba1f6b
    Signed-off-by: Shaunak Saha <shaunak.saha at intel.com>
---
 src/include/cpu/intel/turbo.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/include/cpu/intel/turbo.h b/src/include/cpu/intel/turbo.h
index 6626cb1..1f68b6c 100644
--- a/src/include/cpu/intel/turbo.h
+++ b/src/include/cpu/intel/turbo.h
@@ -26,6 +26,9 @@
 
 #define H_MISC_DISABLE_TURBO	(1 << 6)
 
+#define IA32_PERF_CTL		0x199
+#define FREQ_LIMIT_RATIO	0x1AD
+
 enum {
 	TURBO_UNKNOWN,
 	TURBO_UNAVAILABLE,