Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 35534b20 authored by Stephane Eranian's avatar Stephane Eranian Committed by Ingo Molnar
Browse files

perf/x86: Export Sandy Bridge uncore clockticks event in sysfs 



This patch exports the clockticks event and its encoding to user level.
The clockticks event was exported for Nehalem/Westmere but not for Sandy
Bridge (client). Given that it uses a special encoding, it needs to be
exported to user tools, so users can do:

  # perf stat -a -C 0 -e uncore_cbox_0/clockticks/ sleep 1

Signed-off-by: default avatarStephane Eranian <eranian@google.com>
Acked-by: default avatarYan, Zheng <zheng.z.yan@intel.com>
Signed-off-by: default avatarPeter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20120829130122.GA32336@quad


Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent e4390fa6

arch/x86/kernel/cpu/perf_event_intel_uncore.c

+6 −0
Original line number Original line Diff line number Diff line
@@ -661,6 +661,11 @@ static void snb_uncore_msr_init_box(struct intel_uncore_box *box) 
	}

	}

}

}





static struct uncore_event_desc snb_uncore_events[] = {

	INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff,umask=0x00"),

	{ /* end: all zeroes */ },

};



static struct attribute *snb_uncore_formats_attr[] = {

static struct attribute *snb_uncore_formats_attr[] = {

	&format_attr_event.attr,

	&format_attr_event.attr,

	&format_attr_umask.attr,

	&format_attr_umask.attr,
@@ -704,6 +709,7 @@ static struct intel_uncore_type snb_uncore_cbox = { 
	.constraints	= snb_uncore_cbox_constraints,

	.constraints	= snb_uncore_cbox_constraints,

	.ops		= &snb_uncore_msr_ops,

	.ops		= &snb_uncore_msr_ops,

	.format_group	= &snb_uncore_format_group,

	.format_group	= &snb_uncore_format_group,

	.event_descs	= snb_uncore_events,

};

};





static struct intel_uncore_type *snb_msr_uncores[] = {

static struct intel_uncore_type *snb_msr_uncores[] = {