Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit d1100770 authored by Stephane Eranian's avatar Stephane Eranian Committed by Ingo Molnar
Browse files

perf_events: Fix Intel Westmere event constraints 



Based on Intel Vol3b (March 2010), the event
SNOOPQ_REQUEST_OUTSTANDING is restricted to counters 0,1 so
update the event table for Intel Westmere accordingly.

Signed-off-by: default avatarStephane Eranian <eranian@google.com>
Cc: peterz@infradead.org
Cc: paulus@samba.org
Cc: davem@davemloft.net
Cc: fweisbec@gmail.com
Cc: perfmon2-devel@lists.sf.net
Cc: eranian@gmail.com
Cc: <stable@kernel.org> # .34.x
LKML-Reference: <4c10cb56.5120e30a.2eb4.ffffc3de@mx.google.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 16106822

arch/x86/kernel/cpu/perf_event_intel.c

+1 −0
Original line number Diff line number Diff line
@@ -72,6 +72,7 @@ static struct event_constraint intel_westmere_event_constraints[] = 
	INTEL_EVENT_CONSTRAINT(0x51, 0x3), /* L1D */

	INTEL_EVENT_CONSTRAINT(0x60, 0x1), /* OFFCORE_REQUESTS_OUTSTANDING */

	INTEL_EVENT_CONSTRAINT(0x63, 0x3), /* CACHE_LOCK_CYCLES */

	INTEL_EVENT_CONSTRAINT(0xb3, 0x1), /* SNOOPQ_REQUEST_OUTSTANDING */

	EVENT_CONSTRAINT_END

};