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authorKan Liang <kan.liang@intel.com>2016-05-27 04:12:20 -0700
committerIngo Molnar <mingo@kernel.org>2016-06-03 08:39:38 +0200
commit3b94a891667c30fb4624221497d77fc65d950345 (patch)
tree41c57472e88f6144847e234105ee0cde5c8bae3c /net/llc
parent711460514b1c80494f14001bdf30dd70fd401a8f (diff)
downloadlinux-3b94a891667c30fb4624221497d77fc65d950345.tar.gz
perf/x86/intel/uncore: Remove SBOX support for Broadwell server
There was a report that on certain Broadwell-EP systems writing any bit of
the SBOX PMU initialization MSR would #GP at boot. This did not happen
on all systems. My test systems booted fine.

Considering both DE and EP may have such issues, this patch removes SBOX
support for all Broadwell platforms for now.

Reported-and-tested-by: Mark van Dijk <mark@voidzero.net>
Signed-off-by: Kan Liang <kan.liang@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/1464347540-5763-1-git-send-email-kan.liang@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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