lkml.org 
[lkml]   [2008]   [Jul]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 20/24] x86/oprofile: op_model_athlon.c: Fix counter reset when reenabling IBS OP
Date
Signed-off-by: Robert Richter <robert.richter@amd.com>
---
arch/x86/oprofile/op_model_athlon.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/x86/oprofile/op_model_athlon.c b/arch/x86/oprofile/op_model_athlon.c
index a3a2058..9c8c8c5 100644
--- a/arch/x86/oprofile/op_model_athlon.c
+++ b/arch/x86/oprofile/op_model_athlon.c
@@ -251,6 +251,7 @@ op_amd_handle_ibs(struct pt_regs * const regs,
(unsigned int *)&ibs_op,
IBS_OP_BEGIN);
rdmsr(MSR_AMD64_IBSOPCTL, low, high);
+ high = 0;
low &= ~IBS_OP_LOW_VALID_BIT;
low |= IBS_OP_LOW_ENABLE;
wrmsr(MSR_AMD64_IBSOPCTL, low, high);
--
1.5.5.4



\
 
 \ /
  Last update: 2008-07-22 21:27    [W:0.225 / U:0.132 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site