diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2010-03-04 21:49:01 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-03-10 13:23:35 +0100 |
| commit | 3c44780b220e876b01e39d4028cd6f4205fbf5d6 (patch) | |
| tree | 73542c37cd99cfa5983bb2bad138b93045a67398 /arch/x86/kernel/cpu/perf_event.c | |
| parent | 3adaebd69557615c1bf0365ce5e32d93ac7d82af (diff) | |
perf, x86: Disable PEBS on clovertown chips
This CPU has just too many handycaps to be really useful.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: paulus@samba.org
Cc: eranian@google.com
Cc: robert.richter@amd.com
Cc: fweisbec@gmail.com
LKML-Reference: <20100305154128.890278662@chello.nl>
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 | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c index 7b5430b2efe..335ee1d38b7 100644 --- a/arch/x86/kernel/cpu/perf_event.c +++ b/arch/x86/kernel/cpu/perf_event.c @@ -197,6 +197,7 @@ struct x86_pmu { void (*put_event_constraints)(struct cpu_hw_events *cpuc, struct perf_event *event); struct event_constraint *event_constraints; + void (*quirks)(void); void (*cpu_prepare)(int cpu); void (*cpu_starting)(int cpu); @@ -1373,6 +1374,9 @@ void __init init_hw_perf_events(void) pr_cont("%s PMU driver.\n", x86_pmu.name); + if (x86_pmu.quirks) + x86_pmu.quirks(); + if (x86_pmu.num_events > X86_PMC_MAX_GENERIC) { WARN(1, KERN_ERR "hw perf events %d > max(%d), clipping!", x86_pmu.num_events, X86_PMC_MAX_GENERIC); |