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Commit 05e99c8c authored by Konrad Rzeszutek Wilk's avatar Konrad Rzeszutek Wilk Committed by Rafael J. Wysocki
Browse files

intel-pstate: Use #defines instead of hard-coded values. 



They are defined in coreboot (MSR_PLATFORM) and the other
one is already defined in msr-index.h.

Let's use those.

Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Acked-by: default avatarDirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent e6f3eb29

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

+1 −0
Original line number Diff line number Diff line
@@ -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

drivers/cpufreq/intel_pstate.c

+3 −3
Original line number Diff line number Diff line
@@ -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)