tree caa7d67b5b8f48a8f04ae908e89b7c9a00c852e0
parent 99ac64c826e62a07e5818cfde620be4d524f1edf
author Jamie Iles <jamie.iles@picochip.com> 1260534009 +0000
committer Ingo Molnar <mingo@elte.hu> 1260535821 +0100

perf tools: Allow building for ARM

Add definitions of rmb() and cpu_relax() and include the ARM
unistd.h header. The __kuser_memory_barrier helper in the helper
page is used to provide the correct memory barrier depending on
the CPU type.

[ The rmb() will work on v6 and v7, segfault on v5. Dynamic
  detection to add v5 support will be added later. ]

Signed-off-by: Jamie Iles <jamie.iles@picochip.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mikael Pettersson <mikpe@it.uu.se>
LKML-Reference: <1260534009-5394-1-git-send-email-jamie.iles@picochip.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>