Messages in this thread | | | Date | Thu, 24 May 2012 09:58:14 +0200 | Subject | Re: [PATCH] perf, x86: Make cycles:p working on SNB | From | Stephane Eranian <> |
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On Thu, May 24, 2012 at 9:52 AM, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote: > On Thu, 2012-05-24 at 09:41 +0200, Stephane Eranian wrote: >> So should we mark that >> > as bad as well? >> > >> I never could but was told it was there too. >> >> > Also, do you happen to know if/when a u-code update would appear? >> > >> I am hoping Intel will release the ucode update very soon now. I will >> post a patch >> to re-enable PEBS on model 42 when that happens. > > OK, so how about I queue the below and if the u-code updates gets > released before this hits Linus' tree we'll make it all go away ;-) > Let me get confirmation from Intel today before we do this.
> --- > Subject: perf,x86: Mark PEBS as broken on SNB-EP as well > > As per information from Intel. > > Cc: Stephane Eranian <eranian@google.com> > Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> > --- > arch/x86/kernel/cpu/perf_event_intel.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c > index 166546e..6c8e400 100644 > --- a/arch/x86/kernel/cpu/perf_event_intel.c > +++ b/arch/x86/kernel/cpu/perf_event_intel.c > @@ -1840,8 +1840,8 @@ __init int intel_pmu_init(void) > break; > > case 42: /* SandyBridge */ > - x86_add_quirk(intel_sandybridge_quirk); > case 45: /* SandyBridge, "Romely-EP" */ > + x86_add_quirk(intel_sandybridge_quirk); > memcpy(hw_cache_event_ids, snb_hw_cache_event_ids, > sizeof(hw_cache_event_ids)); > > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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