Commit 30112039 authored Apr 30, 2011 by Ingo Molnar

perf events, x86: Add Westmere stalled-cycles-frontend/backend events



Extend the Intel Westmere PMU driver with definitions for generic front-end and
back-end stall events.

( These are only approximations. )

Reported-by: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/n/tip-7y40wib8n008io7hjpn1dsrm@git.kernel.org


Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 370faf1d

arch/x86/kernel/cpu/perf_event_intel.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -1458,6 +1458,12 @@ static __init int intel_pmu_init(void)
		x86_pmu.enable_all = intel_pmu_nhm_enable_all;
		x86_pmu.pebs_constraints = intel_westmere_pebs_event_constraints;
		x86_pmu.extra_regs = intel_westmere_extra_regs;

		/* UOPS_ISSUED.STALLED_CYCLES */
		intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x180010e;
		/* UOPS_EXECUTED.CORE_ACTIVE_CYCLES,c=1,i=1 */
		intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x1803fb1;

		pr_cont("Westmere events, ");
		break;