alpha: Add minimal support for software performance events

In the kernel the patch enables configuration of the perf event
option, adds the perf_event_open syscall, and includes a minimal
architecture specific asm/perf_event.h header file.

Signed-off-by: Michael Cree <mcree@orcon.net.nz>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Matt Turner <mattst88@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S
index d0bc3c8c3ed3..09acb786e72b 100644
--- a/arch/alpha/kernel/systbls.S
+++ b/arch/alpha/kernel/systbls.S
@@ -511,6 +511,7 @@ sys_call_table:
         .quad sys_preadv                                /* 490 */
         .quad sys_pwritev
         .quad sys_rt_tgsigqueueinfo
+        .quad sys_perf_event_open
 
         .size sys_call_table, . - sys_call_table
         .type sys_call_table, @object