Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757901Ab3HMMTj (ORCPT ); Tue, 13 Aug 2013 08:19:39 -0400 Received: from mail-oa0-f46.google.com ([209.85.219.46]:63983 "EHLO mail-oa0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757632Ab3HMMTi (ORCPT ); Tue, 13 Aug 2013 08:19:38 -0400 MIME-Version: 1.0 In-Reply-To: <1376375382-21350-4-git-send-email-zheng.z.yan@intel.com> References: <1376375382-21350-1-git-send-email-zheng.z.yan@intel.com> <1376375382-21350-4-git-send-email-zheng.z.yan@intel.com> Date: Tue, 13 Aug 2013 14:19:37 +0200 Message-ID: Subject: Re: [PATCH 3/3] perf, uncore: enable ev_sel_ext bit for PCU. From: Stephane Eranian To: "Yan, Zheng" Cc: LKML , Peter Zijlstra , "ak@linux.intel.com" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2386 Lines: 52 On Tue, Aug 13, 2013 at 8:29 AM, Yan, Zheng wrote: > From: "Yan, Zheng" > > This patch adds support for the SNB-EP PCU uncore PMU extra_sel_bit > (bit 21) which is missing from the documentation in Table-2.75 of > Intel Xeon Processor E5-2600 Product Family Uncore Performance > Monitoring Guide. It is referred to later in Table-2.81. Without > this selection bit explicitly enabled by the kernel, some events > such as COREx_TRANSITION_CYCLES do not count correctly. > > Signed-off-by: Yan, Zheng Reviewed-by: Stephane Eranian > --- > arch/x86/kernel/cpu/perf_event_intel_uncore.c | 2 +- > arch/x86/kernel/cpu/perf_event_intel_uncore.h | 1 + > 2 files changed, 2 insertions(+), 1 deletion(-) > > diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c > index 6b8b9c9..e9696d8 100644 > --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c > +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c > @@ -301,7 +301,7 @@ static struct attribute *snbep_uncore_cbox_formats_attr[] = { > }; > > static struct attribute *snbep_uncore_pcu_formats_attr[] = { > - &format_attr_event.attr, > + &format_attr_event_ext.attr, > &format_attr_occ_sel.attr, > &format_attr_edge.attr, > &format_attr_inv.attr, > diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h > index 628500e..a80ab71 100644 > --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h > +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h > @@ -117,6 +117,7 @@ > (SNBEP_PMON_CTL_EV_SEL_MASK | \ > SNBEP_PCU_MSR_PMON_CTL_OCC_SEL_MASK | \ > SNBEP_PMON_CTL_EDGE_DET | \ > + SNBEP_PMON_CTL_EV_SEL_EXT | \ > SNBEP_PMON_CTL_INVERT | \ > SNBEP_PCU_MSR_PMON_CTL_TRESH_MASK | \ > SNBEP_PCU_MSR_PMON_CTL_OCC_INVERT | \ > -- > 1.8.1.4 > -- 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/