[PATCH 4/6][v3] perf/POWER7: Make some POWER7 events available in sysfs

Make some POWER7-specific perf events available in sysfs.

        $ /bin/ls -1 /sys/bus/event_source/devices/cpu/events/
        branch-instructions
        branch-misses
        cache-misses
        cache-references
        cpu-cycles
        instructions
        PM_BRU_FIN
        PM_BRU_MPRED
        PM_CMPLU_STALL
        PM_CYC
        PM_GCT_NOSLOT_CYC
        PM_INST_CMPL
        PM_LD_MISS_L1
        PM_LD_REF_L1
        stalled-cycles-backend
        stalled-cycles-frontend

where the 'PM_*' events are POWER specific and the others are the
generic events.

This will enable users to specify these events with their symbolic
names rather than with their raw code.

        perf stat -e 'cpu/PM_CYC/' ...

Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com>
---
 arch/powerpc/include/asm/perf_event_server.h |    2 ++
 arch/powerpc/perf/power7-pmu.c               |   18 ++++++++++++++++++
 2 files changed, 20 insertions(+), 0 deletions(-)

diff --git a/arch/powerpc/include/asm/perf_event_server.h 
b/arch/powerpc/include/asm/perf_event_server.h
index 3f21d89..b29fcc6 100644
--- a/arch/powerpc/include/asm/perf_event_server.h
+++ b/arch/powerpc/include/asm/perf_event_server.h
@@ -133,3 +133,5 @@ extern ssize_t power_events_sysfs_show(struct device *dev,
 #define        GENERIC_EVENT_ATTR(_name, _id)  EVENT_ATTR(_name, _id, _g)
 #define        GENERIC_EVENT_PTR(_id)          EVENT_PTR(_id, _g)
 
+#define        POWER_EVENT_ATTR(_name, _id)    EVENT_ATTR(PM_##_name, _id, _p)
+#define        POWER_EVENT_PTR(_id)            EVENT_PTR(_id, _p)
diff --git a/arch/powerpc/perf/power7-pmu.c b/arch/powerpc/perf/power7-pmu.c
index ae5d757..5627940 100644
--- a/arch/powerpc/perf/power7-pmu.c
+++ b/arch/powerpc/perf/power7-pmu.c
@@ -373,6 +373,15 @@ GENERIC_EVENT_ATTR(cache-misses,           LD_MISS_L1);
 GENERIC_EVENT_ATTR(branch-instructions,                BRU_FIN);
 GENERIC_EVENT_ATTR(branch-misses,              BRU_MPRED);
 
+POWER_EVENT_ATTR(CYC,                          CYC);
+POWER_EVENT_ATTR(GCT_NOSLOT_CYC,               GCT_NOSLOT_CYC);
+POWER_EVENT_ATTR(CMPLU_STALL,                  CMPLU_STALL);
+POWER_EVENT_ATTR(INST_CMPL,                    INST_CMPL);
+POWER_EVENT_ATTR(LD_REF_L1,                    LD_REF_L1);
+POWER_EVENT_ATTR(LD_MISS_L1,                   LD_MISS_L1);
+POWER_EVENT_ATTR(BRU_FIN,                      BRU_FIN)
+POWER_EVENT_ATTR(BRU_MPRED,                    BRU_MPRED);
+
 static struct attribute *power7_events_attr[] = {
        GENERIC_EVENT_PTR(CYC),
        GENERIC_EVENT_PTR(GCT_NOSLOT_CYC),
@@ -382,6 +391,15 @@ static struct attribute *power7_events_attr[] = {
        GENERIC_EVENT_PTR(LD_MISS_L1),
        GENERIC_EVENT_PTR(BRU_FIN),
        GENERIC_EVENT_PTR(BRU_MPRED),
+
+       POWER_EVENT_PTR(CYC),
+       POWER_EVENT_PTR(GCT_NOSLOT_CYC),
+       POWER_EVENT_PTR(CMPLU_STALL),
+       POWER_EVENT_PTR(INST_CMPL),
+       POWER_EVENT_PTR(LD_REF_L1),
+       POWER_EVENT_PTR(LD_MISS_L1),
+       POWER_EVENT_PTR(BRU_FIN),
+       POWER_EVENT_PTR(BRU_MPRED),
        NULL
 };
 
-- 
1.7.1

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