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author | Ingo Molnar <mingo@elte.hu> | 2012-03-12 19:46:35 (GMT) |
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committer | Ingo Molnar <mingo@elte.hu> | 2012-03-12 19:47:05 (GMT) |
commit | bea95c152dee1791dd02cbc708afbb115bb00f9a (patch) | |
tree | af9994c42c5fdd81ba3dadd7b812e2fa85273353 /arch/mips/kernel | |
parent | f9b4eeb809c6d031cc9561cc34dd691701cb2c2a (diff) | |
parent | 24bff2dc0f77b1f186b7bdf30060caf3df191a68 (diff) | |
download | linux-bea95c152dee1791dd02cbc708afbb115bb00f9a.tar.xz |
Merge branch 'perf/hw-branch-sampling' into perf/core
Merge reason: The 'perf record -b' hardware branch sampling feature is ready for upstream.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/mips/kernel')
-rw-r--r-- | arch/mips/kernel/perf_event_mipsxx.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/mips/kernel/perf_event_mipsxx.c b/arch/mips/kernel/perf_event_mipsxx.c index e3b897a..811084f 100644 --- a/arch/mips/kernel/perf_event_mipsxx.c +++ b/arch/mips/kernel/perf_event_mipsxx.c @@ -606,6 +606,10 @@ static int mipspmu_event_init(struct perf_event *event) { int err = 0; + /* does not support taken branch sampling */ + if (has_branch_stack(event)) + return -EOPNOTSUPP; + switch (event->attr.type) { case PERF_TYPE_RAW: case PERF_TYPE_HARDWARE: |