linux-kernel - [tip:perf/core] perf/x86/intel/uncore: Add scaling units to the EP iMC events

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Date:	Sun, 16 Nov 2014 04:34:37 -0800
From:	tip-bot for Andi Kleen <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	hpa@...or.com, linux-kernel@...r.kernel.org, peterz@...radead.org,
	ak@...ux.intel.com, acme@...nel.org, mingo@...nel.org,
	tglx@...utronix.de
Subject: [tip:perf/core] perf/x86/intel/uncore:
  Add scaling units to the EP iMC events

Commit-ID:  c0737ce453bdccd0d09aa4f916795533a4e02fef
Gitweb:     http://git.kernel.org/tip/c0737ce453bdccd0d09aa4f916795533a4e02fef
Author:     Andi Kleen <ak@...ux.intel.com>
AuthorDate: Mon, 3 Nov 2014 17:00:26 -0800
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Sun, 16 Nov 2014 11:41:52 +0100

perf/x86/intel/uncore: Add scaling units to the EP iMC events

Add scaling to MB/s to the memory controller read/write
events for Sandy/IvyBridge/Haswell-EP similar to how the client
does. This makes the events easier to use from the
standard perf tool.

Signed-off-by: Andi Kleen <ak@...ux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Cc: Arnaldo Carvalho de Melo <acme@...nel.org>
Link: http://lkml.kernel.org/r/1415062828-19759-2-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c b/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c
index f9ed429..745b158 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c
@@ -449,7 +449,11 @@ static struct attribute *snbep_uncore_qpi_formats_attr[] = {
 static struct uncore_event_desc snbep_uncore_imc_events[] = {
 	INTEL_UNCORE_EVENT_DESC(clockticks,      "event=0xff,umask=0x00"),
 	INTEL_UNCORE_EVENT_DESC(cas_count_read,  "event=0x04,umask=0x03"),
+	INTEL_UNCORE_EVENT_DESC(cas_count_read.scale, "6.103515625e-5"),
+	INTEL_UNCORE_EVENT_DESC(cas_count_read.unit, "MiB"),
 	INTEL_UNCORE_EVENT_DESC(cas_count_write, "event=0x04,umask=0x0c"),
+	INTEL_UNCORE_EVENT_DESC(cas_count_write.scale, "6.103515625e-5"),
+	INTEL_UNCORE_EVENT_DESC(cas_count_write.unit, "MiB"),
 	{ /* end: all zeroes */ },
 };
 
@@ -2036,7 +2040,11 @@ static struct intel_uncore_type hswep_uncore_ha = {
 static struct uncore_event_desc hswep_uncore_imc_events[] = {
 	INTEL_UNCORE_EVENT_DESC(clockticks,      "event=0x00,umask=0x00"),
 	INTEL_UNCORE_EVENT_DESC(cas_count_read,  "event=0x04,umask=0x03"),
+	INTEL_UNCORE_EVENT_DESC(cas_count_read.scale, "6.103515625e-5"),
+	INTEL_UNCORE_EVENT_DESC(cas_count_read.unit, "MiB"),
 	INTEL_UNCORE_EVENT_DESC(cas_count_write, "event=0x04,umask=0x0c"),
+	INTEL_UNCORE_EVENT_DESC(cas_count_write.scale, "6.103515625e-5"),
+	INTEL_UNCORE_EVENT_DESC(cas_count_write.unit, "MiB"),
 	{ /* end: all zeroes */ },
 };
 
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