Commit f428ebd1 authored Jan 24, 2014 by Peter Zijlstra Committed by Arnaldo Carvalho de Melo Jan 29, 2014

perf tools: Fix AAAAARGH64 memory barriers



Someone got the load and store barriers mixed up for AAAAARGH64.  Turn
them the right side up.

Reported-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Fixes: a94d342b ("tools/perf: Add required memory barriers")
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Will Deacon <will.deacon@arm.com>
Link: http://lkml.kernel.org/r/20140124154002.GF31570@twins.programming.kicks-ass.net


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent 950b8354

tools/perf/perf.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -100,8 +100,8 @@

		#ifdef __aarch64__
		#define mb() asm volatile("dmb ish" ::: "memory")
		#define wmb() asm volatile("dmb ishld" ::: "memory")
		#define rmb() asm volatile("dmb ishst" ::: "memory")
		#define wmb() asm volatile("dmb ishst" ::: "memory")
		#define rmb() asm volatile("dmb ishld" ::: "memory")
		#define cpu_relax() asm volatile("yield" ::: "memory")
		#endif