]> 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 16:12:49 +0000 (09:12 -0700)
commit95e1cb50851efb745f7d5ae7ea714ece71d84aea
tree1756b4a72ded497db6e4dbb1e73a7fc290924e1e
parent8ab946c56daed1c7cd2ff81e4ca90e93b3251026
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