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authorStephane Eranian <eranian@google.com>2013-01-24 16:10:26 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-03-26 17:36:45 -0300
commit3a54aaa0a3ddb2cf2ec1b94a94024e9a8a8af962 (patch)
treeb9667eba20bd202f6bd6a6afeaeb18ba58ba24c2 /arch/x86/kernel/cpu/perf_event.h
parent1a6461b12872e9622c231928e1620504d741cc79 (diff)
downloadop-kernel-dev-3a54aaa0a3ddb2cf2ec1b94a94024e9a8a8af962.zip
op-kernel-dev-3a54aaa0a3ddb2cf2ec1b94a94024e9a8a8af962.tar.gz
perf/x86: Improve sysfs event mapping with event string
This patch extends Jiri's changes to make generic events mapping visible via sysfs. The patch extends the mechanism to non-generic events by allowing the mappings to be hardcoded in strings. This mechanism will be used by the PEBS-LL patch later on. Signed-off-by: Stephane Eranian <eranian@google.com> Cc: peterz@infradead.org Cc: ak@linux.intel.com Cc: acme@redhat.com Cc: jolsa@redhat.com Cc: namhyung.kim@lge.com Link: http://lkml.kernel.org/r/1359040242-8269-3-git-send-email-eranian@google.com Signed-off-by: Ingo Molnar <mingo@kernel.org> [ fixed up conflict with 2663960 "perf: Make EVENT_ATTR global" ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'arch/x86/kernel/cpu/perf_event.h')
-rw-r--r--arch/x86/kernel/cpu/perf_event.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h
index 95152c1..b1518ee 100644
--- a/arch/x86/kernel/cpu/perf_event.h
+++ b/arch/x86/kernel/cpu/perf_event.h
@@ -422,6 +422,23 @@ do { \
#define ERF_NO_HT_SHARING 1
#define ERF_HAS_RSP_1 2
+#define EVENT_VAR(_id) event_attr_##_id
+#define EVENT_PTR(_id) &event_attr_##_id.attr.attr
+
+#define EVENT_ATTR(_name, _id) \
+static struct perf_pmu_events_attr EVENT_VAR(_id) = { \
+ .attr = __ATTR(_name, 0444, events_sysfs_show, NULL), \
+ .id = PERF_COUNT_HW_##_id, \
+ .event_str = NULL, \
+};
+
+#define EVENT_ATTR_STR(_name, v, str) \
+static struct perf_pmu_events_attr event_attr_##v = { \
+ .attr = __ATTR(_name, 0444, events_sysfs_show, NULL), \
+ .id = 0, \
+ .event_str = str, \
+};
+
extern struct x86_pmu x86_pmu __read_mostly;
DECLARE_PER_CPU(struct cpu_hw_events, cpu_hw_events);
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