Skip to content

Commit

Permalink
perf/x86: Fix Broadwell-EP DRAM RAPL events
Browse files Browse the repository at this point in the history
It appears as though the Broadwell-EP DRAM units share the special
units quirk with Haswell-EP/KNL.

Without this patch, you get really high results (a single DRAM using 20W
of power).

The powercap driver in drivers/powercap/intel_rapl.c already has this
change.

Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Cc: <stable@vger.kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
  • Loading branch information
Vince Weaver authored and Ingo Molnar committed May 3, 2017
1 parent a351e9b commit 33b88e7
Showing 1 changed file with 1 addition and 1 deletion.
2 changes: 1 addition & 1 deletion arch/x86/events/intel/rapl.c
Original file line number Diff line number Diff line change
Expand Up @@ -761,7 +761,7 @@ static const struct x86_cpu_id rapl_cpu_match[] __initconst = {

X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL_CORE, hsw_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL_GT3E, hsw_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL_X, hsw_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL_X, hsx_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL_XEON_D, hsw_rapl_init),

X86_RAPL_MODEL_MATCH(INTEL_FAM6_XEON_PHI_KNL, knl_rapl_init),
Expand Down

0 comments on commit 33b88e7

Please sign in to comment.