mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-25 19:07:46 +00:00
perf, x86: Disable PEBS on SandyBridge chips
Cc: Stephane Eranian <eranian@google.com> Cc: stable@kernel.org Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
parent
4a1dba7238
commit
6a600a8b87
@ -1545,6 +1545,13 @@ static void intel_clovertown_quirks(void)
|
||||
x86_pmu.pebs_constraints = NULL;
|
||||
}
|
||||
|
||||
static void intel_sandybridge_quirks(void)
|
||||
{
|
||||
printk(KERN_WARNING "PEBS disabled due to CPU errata.\n");
|
||||
x86_pmu.pebs = 0;
|
||||
x86_pmu.pebs_constraints = NULL;
|
||||
}
|
||||
|
||||
__init int intel_pmu_init(void)
|
||||
{
|
||||
union cpuid10_edx edx;
|
||||
@ -1694,6 +1701,7 @@ __init int intel_pmu_init(void)
|
||||
break;
|
||||
|
||||
case 42: /* SandyBridge */
|
||||
x86_pmu.quirks = intel_sandybridge_quirks;
|
||||
case 45: /* SandyBridge, "Romely-EP" */
|
||||
memcpy(hw_cache_event_ids, snb_hw_cache_event_ids,
|
||||
sizeof(hw_cache_event_ids));
|
||||
|
Loading…
Reference in New Issue
Block a user