Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=543a15...
Commit: 543a157bbdfae8eb997506031c3b2d4d17957098
Parent: 87f0baccc2e4f194c931186d3c8499314494a484
Author: Robert Richter <robert.richter@amd.com>
AuthorDate: Tue Jul 22 21:09:04 2008 +0200
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Sat Jul 26 11:48:11 2008 +0200
x86/oprofile: op_model_athlon.c: fix counter reset when reenabling IBS OP
Signed-off-by: Robert Richter <robert.richter@amd.com>
Cc: oprofile-list <oprofile-list@lists.sourceforge.net>
Cc: Barry Kasindorf <barry.kasindorf@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
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);
--
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