| From | Robert Richter <> | Subject | [PATCH 20/24] x86/oprofile: op_model_athlon.c: Fix counter reset when reenabling IBS OP | Date | Tue, 22 Jul 2008 21:09:04 +0200 |
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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
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