perf/x86/intel: Add Cannon Lake support for RAPL profiling

This patch enables RAPL counters (energy consumption counters)
support for Cannon Lake processors.

( ESU and power domains refer to Intel Software Developers' Manual,
  Vol. 4, Order No. 335592. )

Usage example:

  $ perf list
  $ perf stat -a -e power/energy-cores/,power/energy-pkg/ sleep 10

Tested-by: Puthikorn Voravootivat <puthik@chromium.org>
Signed-off-by: Harry Pan <harry.pan@intel.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: colin.king@canonical.com
Cc: gs0622@gmail.com
Cc: kan.liang@linux.intel.com
Link: http://lkml.kernel.org/r/20180309121549.630-2-harry.pan@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
index a2efb49..32f3e94 100644 (file)
--- a/arch/x86/events/intel/rapl.c
+++ b/arch/x86/events/intel/rapl.c
@@ -774,6 +774,8 @@ static const struct x86_cpu_id rapl_cpu_match[] __initconst = {
        X86_RAPL_MODEL_MATCH(INTEL_FAM6_KABYLAKE_MOBILE,  skl_rapl_init),
        X86_RAPL_MODEL_MATCH(INTEL_FAM6_KABYLAKE_DESKTOP, skl_rapl_init),
 
+       X86_RAPL_MODEL_MATCH(INTEL_FAM6_CANNONLAKE_MOBILE,  skl_rapl_init),
+
        X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT, hsw_rapl_init),
        X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_DENVERTON, hsw_rapl_init),