Commit-ID: e04d1b23f9706186187dcb0be1a752e48dcc540b
Gitweb: http://git.kernel.org/tip/e04d1b23f9706186187dcb0be1a752e48dcc540b
Author: Lin Ming <ming.m.lin@xxxxxxxxx>
AuthorDate: Fri, 6 May 2011 07:14:02 +0000
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Fri, 6 May 2011 09:37:03 +0200
perf events, x86: Add SandyBridge stalled-cycles-frontend/backend events
Extend the Intel SandyBridge PMU driver with definitions
for generic front-end and back-end stall events.
( As commit 3011203 "perf events, x86: Add Westmere stalled-cycles-frontend/backend
events" says, these are only approximations. )
Signed-off-by: Lin Ming <ming.m.lin@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1304666042-17577-1-git-send-email-ming.m.lin@xxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
arch/x86/kernel/cpu/perf_event_intel.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index e61539b..7cf2ec5 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -1474,6 +1474,12 @@ static __init int intel_pmu_init(void)
x86_pmu.event_constraints = intel_snb_event_constraints;
x86_pmu.pebs_constraints = intel_snb_pebs_events;
+
+ /* UOPS_ISSUED.ANY,c=1,i=1 to count stall cycles */
+ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x180010e;
+ /* UOPS_DISPATCHED.THREAD,c=1,i=1 to count stall cycles*/
+ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x18001b1;
+
pr_cont("SandyBridge events, ");
break;
--
To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
|