Patchwork [3/7] powerpc/perf: Create mem-loads/mem-stores events for Power8

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Submitter sukadev@linux.vnet.ibm.com
Date Aug. 10, 2013, 5:50 p.m.
Message ID <20130810175042.GD15551@us.ibm.com>
Download mbox | patch
Permalink /patch/266248/
State Superseded
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Comments

sukadev@linux.vnet.ibm.com - Aug. 10, 2013, 5:50 p.m.
[PATCH 3/7] powerpc/perf: Create mem-loads/mem-stores events for Power8

'perf mem' command depends on the support for generic hardware events
'mem-loads' and 'mem-stores'.

Create those events for Power8 and map them both to the event PM_MRK_GRP_CMPL.
While PM_MRK_GRP_CMPL is strictly not restricted to loads and stores, that
seems to be a close/resonable match.

Cc: Stephane Eranian <eranian@google.com>
Cc: Paul Mckerras <paulus@samba.org>
Cc: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
---
 arch/powerpc/perf/power8-pmu.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

Patch

diff --git a/arch/powerpc/perf/power8-pmu.c b/arch/powerpc/perf/power8-pmu.c
index ff98fb8..0a7b632 100644
--- a/arch/powerpc/perf/power8-pmu.c
+++ b/arch/powerpc/perf/power8-pmu.c
@@ -24,6 +24,8 @@ 
 #define PME_PM_INST_CMPL			0x00002
 #define PME_PM_BRU_FIN				0x10068
 #define PME_PM_BR_MPRED_CMPL			0x400f6
+#define PME_PM_MEM_LOADS			0x40130
+#define PME_PM_MEM_STORES			0x40130
 
 
 /*
@@ -516,6 +518,8 @@  GENERIC_EVENT_ATTR(stalled-cycles-backend,	PM_CMPLU_STALL);
 GENERIC_EVENT_ATTR(instructions,		PM_INST_CMPL);
 GENERIC_EVENT_ATTR(branch-instructions,		PM_BRU_FIN);
 GENERIC_EVENT_ATTR(branch-misses,		PM_BR_MPRED_CMPL);
+GENERIC_EVENT_ATTR(mem-loads,			PM_MEM_LOADS);
+GENERIC_EVENT_ATTR(mem-stores,			PM_MEM_STORES);
 
 static struct attribute *power8_events_attr[] = {
 	GENERIC_EVENT_PTR(PM_CYC),
@@ -524,6 +528,8 @@  static struct attribute *power8_events_attr[] = {
 	GENERIC_EVENT_PTR(PM_INST_CMPL),
 	GENERIC_EVENT_PTR(PM_BRU_FIN),
 	GENERIC_EVENT_PTR(PM_BR_MPRED_CMPL),
+	GENERIC_EVENT_PTR(PM_MEM_LOADS),
+	GENERIC_EVENT_PTR(PM_MEM_STORES),
 	NULL
 };