Messages in this thread | | | Date | Mon, 23 Jul 2018 16:59:44 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH 3/4] perf/x86/intel/ds: Handle PEBS overflow for fixed counters |
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On Thu, Mar 08, 2018 at 06:15:41PM -0800, kan.liang@linux.intel.com wrote: > diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c > index ef47a418d819..86149b87cce8 100644 > --- a/arch/x86/events/intel/core.c > +++ b/arch/x86/events/intel/core.c > @@ -2280,7 +2280,10 @@ static int intel_pmu_handle_irq(struct pt_regs *regs) > * counters from the GLOBAL_STATUS mask and we always process PEBS > * events via drain_pebs(). > */ > - status &= ~(cpuc->pebs_enabled & PEBS_COUNTER_MASK); > + if (x86_pmu.flags & PMU_FL_PEBS_ALL) > + status &= ~(cpuc->pebs_enabled & EXTENDED_PEBS_COUNTER_MASK); > + else > + status &= ~(cpuc->pebs_enabled & PEBS_COUNTER_MASK); > > /* > * PEBS overflow sets bit 62 in the global status register
Doesn't this re-introduce the problem fixed in commit fd583ad1563be, where pebs_enabled:32-34 are PEBS Load Latency, instead of fixed counters?
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