]> git.hungrycats.org Git - linux/commit
perf/x86/intel: Fix PEBS data source interpretation on Nehalem/Westmere
authorAndi Kleen <ak@linux.intel.com>
Tue, 1 Mar 2016 22:25:24 +0000 (14:25 -0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 12 Apr 2016 14:33:49 +0000 (07:33 -0700)
commit73d45efd1e8e6cd78ec5b2118989e5a78170b3b0
treec46fe6f85ade49adba514903582a9372bf061ab2
parent1b3b7e5eff950d6c408b7a55a0074538b3be48d0
perf/x86/intel: Fix PEBS data source interpretation on Nehalem/Westmere

commit e17dc65328057c00db7e1bfea249c8771a78b30b upstream.

Jiri reported some time ago that some entries in the PEBS data source table
in perf do not agree with the SDM. We investigated and the bits
changed for Sandy Bridge, but the SDM was not updated.

perf already implements the bits correctly for Sandy Bridge
and later. This patch patches it up for Nehalem and Westmere.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: jolsa@kernel.org
Link: http://lkml.kernel.org/r/1456871124-15985-1-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/x86/kernel/cpu/perf_event.h
arch/x86/kernel/cpu/perf_event_intel.c
arch/x86/kernel/cpu/perf_event_intel_ds.c