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| author | Huang Rui <ray.huang@amd.com> | 2016-03-25 03:08:40 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-03-29 11:12:11 +0200 |
| commit | 34a4cceb78e48c75d1b48b25352a3f3b2cc2b2da (patch) | |
| tree | d23977f1495c4fbd93f4790619155e8b1f837b78 /arch | |
| parent | x86/thread_info: Merge two !__ASSEMBLY__ sections (diff) | |
| download | linux-34a4cceb78e48c75d1b48b25352a3f3b2cc2b2da.tar.xz linux-34a4cceb78e48c75d1b48b25352a3f3b2cc2b2da.zip | |
x86/cpu: Add advanced power management bits
Bit 11 of CPUID 8000_0007 edx is processor feedback interface.
Bit 12 of CPUID 8000_0007 edx is accumulated power.
Print proper names in proc/cpuinfo
Reported-and-tested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Cc: Tony Li <tony.li@amd.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Sherry Hurwitz <sherry.hurwitz@amd.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: "Len Brown" <lenb@kernel.org>
Link: http://lkml.kernel.org/r/1458871720-3209-1-git-send-email-ray.huang@amd.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/cpu/powerflags.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/powerflags.c b/arch/x86/kernel/cpu/powerflags.c index 31f0f335ed22..1dd8294fd730 100644 --- a/arch/x86/kernel/cpu/powerflags.c +++ b/arch/x86/kernel/cpu/powerflags.c @@ -18,4 +18,6 @@ const char *const x86_power_flags[32] = { "", /* tsc invariant mapped to constant_tsc */ "cpb", /* core performance boost */ "eff_freq_ro", /* Readonly aperf/mperf */ + "proc_feedback", /* processor feedback interface */ + "acc_power", /* accumulated power mechanism */ }; |