From 2481c5fa6db0237e4f0168f88913178b2b495b7c Mon Sep 17 00:00:00 2001 From: Stephane Eranian Date: Thu, 9 Feb 2012 23:20:59 +0100 Subject: perf: Disable PERF_SAMPLE_BRANCH_* when not supported PERF_SAMPLE_BRANCH_* is disabled for: - SW events (sw counters, tracepoints) - HW breakpoints - ALL but Intel x86 architecture - AMD64 processors Signed-off-by: Stephane Eranian Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/1328826068-11713-10-git-send-email-eranian@google.com Signed-off-by: Ingo Molnar --- arch/mips/kernel/perf_event_mipsxx.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/mips') 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: -- cgit v1.1