linux-kernel - [PATCH v1 0/2] perf/x86: fixes and improvement for Intel Atom PEBS support

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Message-Id: <1449080897-26149-1-git-send-email-eranian@google.com>
Date:	Wed,  2 Dec 2015 19:28:15 +0100
From:	Stephane Eranian <eranian@...gle.com>
To:	linux-kernel@...r.kernel.org
Cc:	acme@...hat.com, peterz@...radead.org, mingo@...e.hu,
	ak@...ux.intel.com, kan.liang@...el.com
Subject: [PATCH v1 0/2] perf/x86: fixes and improvement for Intel Atom PEBS support

This short series fixes total breakage of Intel Atom PEBS support in recent kernels.
The problems were introduced with the changes in the PEBS logic to handle 
deeper buffer.

The first patch fixes PEBS and LBR problems, including NULL pointers, wrong pointer
arithmetic, and wrong pebs record layout assumption.

The second patch adds an alias for cycles:pp to Intel Atom given that perf record/top
uses cycles:pp nowadays.

Stephane Eranian (2):
  perf/x86: fix PEBS and LBR issues on Intel Atom
  perf/x86: enable cycles:pp for Intel Atom

 arch/x86/kernel/cpu/perf_event_intel.c     | 30 ++++++++++++++++++++++++++++++
 arch/x86/kernel/cpu/perf_event_intel_ds.c  | 11 ++++++++++-
 arch/x86/kernel/cpu/perf_event_intel_lbr.c | 11 +++++++----
 3 files changed, 47 insertions(+), 5 deletions(-)

-- 
2.5.0

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