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Commit 8d84e906 authored by Len Brown's avatar Len Brown
Browse files

x86: msr-index.h: define HWP.EPP values 



The Hardware Performance State request MSR has a field
to express the "Energy Performance Preference" (HWP.EPP).

Decode that field so the definition may be shared by
by the intel_pstate driver and any utilities that
decode the same register.

Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent d0117a0e

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

+4 −0
Original line number Diff line number Diff line
@@ -239,6 +239,10 @@ 
#define HWP_MAX_PERF(x) 		((x & 0xff) << 8)

#define HWP_DESIRED_PERF(x)		((x & 0xff) << 16)

#define HWP_ENERGY_PERF_PREFERENCE(x)	((x & 0xff) << 24)

#define HWP_EPP_PERFORMANCE		0x00

#define HWP_EPP_BALANCE_PERFORMANCE	0x80

#define HWP_EPP_BALANCE_POWERSAVE	0xC0

#define HWP_EPP_POWERSAVE		0xFF

#define HWP_ACTIVITY_WINDOW(x)		((x & 0xff3) << 32)

#define HWP_PACKAGE_CONTROL(x)		((x & 0x1) << 42)