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perf, x86: Add Nehalem programming quirk to Westmere

According to the Xeon-5600 errata the Westmere suffers the same PMU
programming bug as the original Nehalem did.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Peter Zijlstra пре 15 година
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40b91cd10f
1 измењених фајлова са 2 додато и 0 уклоњено
  1. 2 0
      arch/x86/kernel/cpu/perf_event_intel.c

+ 2 - 0
arch/x86/kernel/cpu/perf_event_intel.c

@@ -488,6 +488,7 @@ static void intel_pmu_enable_all(int added)
  * Workaround for:
  *   Intel Errata AAK100 (model 26)
  *   Intel Errata AAP53  (model 30)
+ *   Intel Errata BD53   (model 44)
  *
  * These chips need to be 'reset' when adding counters by programming
  * the magic three (non counting) events 0x4300D2, 0x4300B1 and 0x4300B5
@@ -980,6 +981,7 @@ static __init int intel_pmu_init(void)
 		intel_pmu_lbr_init_nhm();
 
 		x86_pmu.event_constraints = intel_westmere_event_constraints;
+		x86_pmu.enable_all = intel_pmu_nhm_enable_all;
 		pr_cont("Westmere events, ");
 		break;