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| author | Robert Richter <robert.richter@amd.com> | 2008-07-22 21:09:04 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-26 11:48:11 +0200 |
| commit | 543a157bbdfae8eb997506031c3b2d4d17957098 (patch) | |
| tree | 81b101321497df2dc0b1f32536ede78cb935b1e6 /arch/x86/oprofile | |
| parent | 87f0baccc2e4f194c931186d3c8499314494a484 (diff) | |
| download | blackbird-op-linux-543a157bbdfae8eb997506031c3b2d4d17957098.tar.gz blackbird-op-linux-543a157bbdfae8eb997506031c3b2d4d17957098.zip | |
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>
Diffstat (limited to 'arch/x86/oprofile')
| -rw-r--r-- | 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 a3a2058c372c..9c8c8c583132 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); |
