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From: Anton Blanchard <anton@ozlabs.org>
To: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
	mikey@neuling.org, maddy@linux.vnet.ibm.com
Cc: linuxppc-dev@lists.ozlabs.org
Subject: [PATCH] powerpc/perf: Add POWER9 alternate PM_RUN_CYC and PM_RUN_INST_CMPL events
Date: Mon, 19 Jun 2017 09:51:28 +1000	[thread overview]
Message-ID: <20170618235128.20472-1-anton@ozlabs.org> (raw)

From: Anton Blanchard <anton@samba.org>

Similar to POWER8, POWER9 can count run cycles and run instructions
completed on more than one PMU.

Signed-off-by: Anton Blanchard <anton@samba.org>
---
 arch/powerpc/perf/power9-events-list.h | 4 ++++
 arch/powerpc/perf/power9-pmu.c         | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/arch/powerpc/perf/power9-events-list.h b/arch/powerpc/perf/power9-events-list.h
index 71a6bfee5c02..e9e417eefa59 100644
--- a/arch/powerpc/perf/power9-events-list.h
+++ b/arch/powerpc/perf/power9-events-list.h
@@ -51,8 +51,12 @@ EVENT(PM_DTLB_MISS,				0x300fc)
 EVENT(PM_ITLB_MISS,				0x400fc)
 /* Run_Instructions */
 EVENT(PM_RUN_INST_CMPL,				0x500fa)
+/* Alternate event code for PM_RUN_INST_CMPL */
+EVENT(PM_RUN_INST_CMPL_ALT,			0x400fa)
 /* Run_cycles */
 EVENT(PM_RUN_CYC,				0x600f4)
+/* Alternate event code for Run_cycles */
+EVENT(PM_RUN_CYC_ALT,				0x200f4)
 /* Instruction Dispatched */
 EVENT(PM_INST_DISP,				0x200f2)
 EVENT(PM_INST_DISP_ALT,				0x300f2)
diff --git a/arch/powerpc/perf/power9-pmu.c b/arch/powerpc/perf/power9-pmu.c
index 018f8e90ac35..b9168163b2b2 100644
--- a/arch/powerpc/perf/power9-pmu.c
+++ b/arch/powerpc/perf/power9-pmu.c
@@ -107,6 +107,8 @@ extern struct attribute_group isa207_pmu_format_group;
 /* Table of alternatives, sorted by column 0 */
 static const unsigned int power9_event_alternatives[][MAX_ALT] = {
 	{ PM_INST_DISP,			PM_INST_DISP_ALT },
+	{ PM_RUN_CYC_ALT,		PM_RUN_CYC },
+	{ PM_RUN_INST_CMPL_ALT,		PM_RUN_INST_CMPL },
 };
 
 static int power9_get_alternatives(u64 event, unsigned int flags, u64 alt[])
-- 
2.11.0

             reply	other threads:[~2017-06-18 23:51 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-18 23:51 Anton Blanchard [this message]
2017-06-27  7:48 ` [PATCH] powerpc/perf: Add POWER9 alternate PM_RUN_CYC and PM_RUN_INST_CMPL events Madhavan Srinivasan
2017-07-13 12:46 ` Michael Ellerman

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