perf/x86: Fix Broadwell-EP DRAM RAPL events

commit 33b88e708e7dfa58dc896da2a98f5719d2eb315c upstream.

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
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
index 0a535ce..8b902b6 100644 (file)
--- a/arch/x86/events/intel/rapl.c
+++ b/arch/x86/events/intel/rapl.c
@@ -759,7 +759,7 @@ 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),