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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2011-12-06 17:07:15 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-12-06 23:41:06 +0400 |
| commit | c1d6f42f1a42c721513e2f388c208e5348004f64 (patch) | |
| tree | c30bac2feecd91ceb012eb5523568360f40ce9a3 /arch/x86/kernel/cpu/perf_event.c | |
| parent | ffb871bc9156ee2e5cf442f61250c5bd6aad17e3 (diff) | |
| download | linux-c1d6f42f1a42c721513e2f388c208e5348004f64.tar.xz | |
perf, x86: Implement arch event mask as quirk
Implement the disabling of arch events as a quirk so that we can print
a message along with it. This creates some visibility into the problem
space and could allow us to work on adding more work-around like the
AAJ80 one.
Requested-by: Ingo Molnar <mingo@elte.hu>
Cc: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-wcja2z48wklzu1b0nkz0a5y7@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/cpu/perf_event.c')
| -rw-r--r-- | arch/x86/kernel/cpu/perf_event.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c index 66f8ba9a67f9..55889e0b1452 100644 --- a/arch/x86/kernel/cpu/perf_event.c +++ b/arch/x86/kernel/cpu/perf_event.c @@ -1248,6 +1248,7 @@ static void __init pmu_check_apic(void) static int __init init_hw_perf_events(void) { + struct x86_pmu_quirk *quirk; struct event_constraint *c; int err; @@ -1276,8 +1277,8 @@ static int __init init_hw_perf_events(void) pr_cont("%s PMU driver.\n", x86_pmu.name); - if (x86_pmu.quirks) - x86_pmu.quirks(); + for (quirk = x86_pmu.quirks; quirk; quirk = quirk->next) + quirk->func(); if (x86_pmu.num_counters > X86_PMC_MAX_GENERIC) { WARN(1, KERN_ERR "hw perf events %d > max(%d), clipping!", |