x86/cpu: Add advanced power management bits

huangrui · KAGA-KOKO · commit 34a4cceb78e4 · 2016-03-29T11:12:11.000+02:00
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>
diff --git 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 */
 };
