This is a note to let you know that I've just added the patch titled
perf/x86/rapl: Enable Broadwell-U RAPL support
to the 4.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
perf-x86-rapl-enable-broadwell-u-rapl-support.patch
and it can be found in the queue-4.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 44b11fee51711ca85aa2b121a49bf029d18a3722 Mon Sep 17 00:00:00 2001
From: Stephane Eranian <eranian@xxxxxxxxxx>
Date: Thu, 23 Apr 2015 09:07:09 +0200
Subject: perf/x86/rapl: Enable Broadwell-U RAPL support
From: Stephane Eranian <eranian@xxxxxxxxxx>
commit 44b11fee51711ca85aa2b121a49bf029d18a3722 upstream.
This patch enables RAPL counters (energy consumption counters)
support for Intel Broadwell-U processors (Model 61):
To use:
$ perf stat -a -I 1000 -e power/energy-cores/,power/energy-pkg/,power/energy-ram/ sleep 10
Signed-off-by: Stephane Eranian <eranian@xxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Brian Gerst <brgerst@xxxxxxxxx>
Cc: Denys Vlasenko <dvlasenk@xxxxxxxxxx>
Cc: H. Peter Anvin <hpa@xxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: jacob.jun.pan@xxxxxxxxxxxxxxx
Cc: kan.liang@xxxxxxxxx
Cc: peterz@xxxxxxxxxxxxx
Cc: sonnyrao@xxxxxxxxxxxx
Link: http://lkml.kernel.org/r/20150423070709.GA4970@thinkpad
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/x86/kernel/cpu/perf_event_intel_rapl.c | 1 +
1 file changed, 1 insertion(+)
--- a/arch/x86/kernel/cpu/perf_event_intel_rapl.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_rapl.c
@@ -680,6 +680,7 @@ static int __init rapl_pmu_init(void)
break;
case 60: /* Haswell */
case 69: /* Haswell-Celeron */
+ case 61: /* Broadwell */
rapl_cntr_mask = RAPL_IDX_HSW;
rapl_pmu_events_group.attrs = rapl_events_hsw_attr;
break;
Patches currently in stable-queue which might be from eranian@xxxxxxxxxx are
queue-4.0/perf-x86-rapl-enable-broadwell-u-rapl-support.patch
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