From: "tip-bot for Yan, Zheng" <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, eranian@google.com, hpa@zytor.com,
mingo@kernel.org, peterz@infradead.org, zheng.z.yan@intel.com,
tglx@linutronix.de
Subject: [tip:perf/core] perf/x86/intel/uncore: Enable EV_SEL_EXT bit for PCU
Date: Fri, 16 Aug 2013 11:47:26 -0700 [thread overview]
Message-ID: <tip-77b339bce3e21f7a069447fc25a414b18e36fa2e@git.kernel.org> (raw)
In-Reply-To: <1376375382-21350-4-git-send-email-zheng.z.yan@intel.com>
Commit-ID: 77b339bce3e21f7a069447fc25a414b18e36fa2e
Gitweb: http://git.kernel.org/tip/77b339bce3e21f7a069447fc25a414b18e36fa2e
Author: Yan, Zheng <zheng.z.yan@intel.com>
AuthorDate: Tue, 13 Aug 2013 14:29:42 +0800
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Fri, 16 Aug 2013 17:55:50 +0200
perf/x86/intel/uncore: Enable EV_SEL_EXT bit for PCU
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 <zheng.z.yan@intel.com>
Reviewed-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1376375382-21350-4-git-send-email-zheng.z.yan@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
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 | \
prev parent reply other threads:[~2013-08-16 18:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-13 6:29 [PATCH V2 0/3] perf, uncore: updates Yan, Zheng
2013-08-13 6:29 ` [PATCH 1/3] perf, uncore: add auxiliary pci device support Yan, Zheng
2013-08-13 6:29 ` [PATCH 2/3] perf, uncore: add filter support for QPI boxes Yan, Zheng
2013-08-13 6:29 ` [PATCH 3/3] perf, uncore: enable ev_sel_ext bit for PCU Yan, Zheng
2013-08-13 12:19 ` Stephane Eranian
2013-08-16 18:47 ` tip-bot for Yan, Zheng [this message]
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