Commit-ID: 77b339bce3e21f7a069447fc25a414b18e36fa2e Gitweb: http://git.kernel.org/tip/77b339bce3e21f7a069447fc25a414b18e36fa2e Author: Yan, Zheng <zheng.z.yan@xxxxxxxxx> AuthorDate: Tue, 13 Aug 2013 14:29:42 +0800 Committer: Ingo Molnar <mingo@xxxxxxxxxx> 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@xxxxxxxxx> Reviewed-by: Stephane Eranian <eranian@xxxxxxxxxx> Signed-off-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Link: http://lkml.kernel.org/r/1376375382-21350-4-git-send-email-zheng.z.yan@xxxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- 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 | \ -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html