On 03/20/2013 07:21 AM, Konrad Rzeszutek Wilk wrote:
They are defined in coreboot (MSR_PLATFORM) and the other
one is already defined in msr-index.h.
Lets use those.
CC: rafael.j.wysocki@xxxxxxxxx
CC: dirk.j.brandewie@xxxxxxxxx
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Acked-by: Dirk Brandewie <dirk.j.brandewie@xxxxxxxxx>
---
arch/x86/include/uapi/asm/msr-index.h | 1 +
drivers/cpufreq/intel_pstate.c | 6 +++---
2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/arch/x86/include/uapi/asm/msr-index.h b/arch/x86/include/uapi/asm/msr-index.h
index 892ce40..7a060f4 100644
--- a/arch/x86/include/uapi/asm/msr-index.h
+++ b/arch/x86/include/uapi/asm/msr-index.h
@@ -44,6 +44,7 @@
#define SNB_C1_AUTO_UNDEMOTE (1UL << 27)
#define SNB_C3_AUTO_UNDEMOTE (1UL << 28)
+#define MSR_PLATFORM_INFO 0x000000ce
#define MSR_MTRRcap 0x000000fe
#define MSR_IA32_BBL_CR_CTL 0x00000119
#define MSR_IA32_BBL_CR_CTL3 0x0000011e
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index f6dd1e7..dadc27d 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -358,14 +358,14 @@ static void intel_pstate_sysfs_expose_params(void)
static int intel_pstate_min_pstate(void)
{
u64 value;
- rdmsrl(0xCE, value);
+ rdmsrl(MSR_PLATFORM_INFO, value);
return (value >> 40) & 0xFF;
}
static int intel_pstate_max_pstate(void)
{
u64 value;
- rdmsrl(0xCE, value);
+ rdmsrl(MSR_PLATFORM_INFO, value);
return (value >> 8) & 0xFF;
}
@@ -373,7 +373,7 @@ static int intel_pstate_turbo_pstate(void)
{
u64 value;
int nont, ret;
- rdmsrl(0x1AD, value);
+ rdmsrl(MSR_NHM_TURBO_RATIO_LIMIT, value);
nont = intel_pstate_max_pstate();
ret = ((value) & 255);
if (ret <= nont)
--
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