perf/x86: Add hardware events translations for AMD cpus

Add support for AMD processors to display 'events' sysfs
directory (/sys/devices/cpu/events/) with hw event translations:

  # ls  /sys/devices/cpu/events/
  branch-instructions
  branch-misses
  bus-cycles
  cache-misses
  cache-references
  cpu-cycles
  instructions
  ref-cycles
  stalled-cycles-backend
  stalled-cycles-frontend

Suggested-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1349873598-12583-5-git-send-email-jolsa@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 8a1fa23452d6..0a55ab2ff849 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -1392,9 +1392,8 @@ static struct attribute_group x86_pmu_events_group = {
 	.attrs = events_attr,
 };
 
-ssize_t x86_event_sysfs_show(char *page, u64 config)
+ssize_t x86_event_sysfs_show(char *page, u64 config, u64 event)
 {
-	u64 event  = (config & ARCH_PERFMON_EVENTSEL_EVENT);
 	u64 umask  = (config & ARCH_PERFMON_EVENTSEL_UMASK) >> 8;
 	u64 cmask  = (config & ARCH_PERFMON_EVENTSEL_CMASK) >> 24;
 	bool edge  = (config & ARCH_PERFMON_EVENTSEL_EDGE);