From dcc42f483d6808ba4d04af9da35e7e47b711f6c2 Mon Sep 17 00:00:00 2001
From: Sonny Rao <sonny@burdell.org>
Date: Wed, 2 Aug 2006 00:20:09 -0400
Subject: [PATCH] [POWERPC] fix PMU initialization on pseries lpar
We should not be calling power4_enable_pmcs() in
pseries_lpar_enable_pmcs(); just doing the hypercall is sufficient.
Prior to 2.6.15 we did not call power4_enable_pmcs() for an lpar.
power4_enable_pmcs() tries to read the hid0 register which is no
longer legal for an lpar in newer Power processors.
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
arch/powerpc/platforms/pseries/setup.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 71c634e0b87c..31867a701fcb 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -213,8 +213,6 @@ static void pseries_lpar_enable_pmcs(void)
{
unsigned long set, reset;
- power4_enable_pmcs();
-
set = 1UL << 63;
reset = 0;
plpar_hcall_norets(H_PERFMON, set, reset);