diff options
| author | Jiri Olsa <jolsa@kernel.org> | 2018-11-21 11:16:11 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-05 19:32:08 +0100 |
| commit | be0e2e2436cccf0507547fab44881d0f69075ae0 (patch) | |
| tree | ebe23d00fb78d18cb3469462ce9506eaef7d427b /kernel/trace/trace_functions_graph.c | |
| parent | ad65b548409c521ee74a125f5705ecaf413519c5 (diff) | |
perf/x86/intel: Add generic branch tracing check to intel_pmu_has_bts()
commit 67266c1080ad56c31af72b9c18355fde8ccc124a upstream.
Currently we check the branch tracing only by checking for the
PERF_COUNT_HW_BRANCH_INSTRUCTIONS event of PERF_TYPE_HARDWARE
type. But we can define the same event with the PERF_TYPE_RAW
type.
Changing the intel_pmu_has_bts() code to check on event's final
hw config value, so both HW types are covered.
Adding unlikely to intel_pmu_has_bts() condition calls, because
it was used in the original code in intel_bts_constraints.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: <stable@vger.kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
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>
Link: http://lkml.kernel.org/r/20181121101612.16272-2-jolsa@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/trace/trace_functions_graph.c')
0 files changed, 0 insertions, 0 deletions