perf: Make EVENT_ATTR global

Rename EVENT_ATTR() to PMU_EVENT_ATTR() and make it global so it is
available to all architectures.

Further to allow architectures flexibility, have PMU_EVENT_ATTR() pass
in the variable name as a parameter.

Changelog[v2]
	- [Jiri Olsa] No need to define PMU_EVENT_PTR()

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Anton Blanchard <anton@au1.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: linuxppc-dev@ozlabs.org
Link: http://lkml.kernel.org/r/20130123062422.GC13720@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 6774c17..c0df5ed 100644 (file)
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -1310,11 +1310,6 @@ static struct attribute_group x86_pmu_format_group = {
        .attrs = NULL,
 };
 
-struct perf_pmu_events_attr {
-       struct device_attribute attr;
-       u64 id;
-};
-
 /*
  * Remove all undefined events (x86_pmu.event_map(id) == 0)
  * out of events_attr attributes.
@@ -1348,11 +1343,9 @@ static ssize_t events_sysfs_show(struct device *dev, struct device_attribute *at
 #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,                           \
-};
+#define EVENT_ATTR(_name, _id)                                         \
+       PMU_EVENT_ATTR(_name, EVENT_VAR(_id), PERF_COUNT_HW_##_id,      \
+                       events_sysfs_show)
 
 EVENT_ATTR(cpu-cycles,                 CPU_CYCLES              );
 EVENT_ATTR(instructions,               INSTRUCTIONS            );

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 6bfb2fa..42adf01 100644 (file)
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -817,6 +817,17 @@ do {                                                                       \
 } while (0)
 
 
+struct perf_pmu_events_attr {
+       struct device_attribute attr;
+       u64 id;
+};
+
+#define PMU_EVENT_ATTR(_name, _var, _id, _show)                                \
+static struct perf_pmu_events_attr _var = {                            \
+       .attr = __ATTR(_name, 0444, _show, NULL),                       \
+       .id   =  _id,                                                   \
+};
+
 #define PMU_FORMAT_ATTR(_name, _format)                                        \
 static ssize_t                                                         \
 _name##_show(struct device *dev,                                       \