Patch "perf/x86/rapl: Enable Broadwell-U RAPL support" has been added to the 4.0-stable tree

Patch "perf/x86/rapl: Enable Broadwell-U RAPL support" has been added to the 4.0-stable tree

[gregkh]

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@vger.kernel.org> know about it.


>From 44b11fee51711ca85aa2b121a49bf029d18a3722 Mon Sep 17 00:00:00 2001
From: Stephane Eranian <eranian@google.com>
Date: Thu, 23 Apr 2015 09:07:09 +0200
Subject: perf/x86/rapl: Enable Broadwell-U RAPL support

From: Stephane Eranian <eranian@google.com>

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@google.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: jacob.jun.pan@linux.intel.com
Cc: kan.liang@intel.com
Cc: peterz@infradead.org
Cc: sonnyrao@chromium.org
Link: http://lkml.kernel.org/r/20150423070709.GA4970@thinkpad
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 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@google.com are

queue-4.0/perf-x86-rapl-enable-broadwell-u-rapl-support.patch