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author | Ingo Molnar <mingo@elte.hu> | 2009-03-05 11:59:10 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-03-05 11:59:10 +0100 |
commit | 49d2d266adff27793fed247a2e9e672d59b6ddc6 (patch) | |
tree | aa23052f8b6e9f1a96e56873c940eef7110f0013 /arch/x86/oprofile/op_model_ppro.c | |
parent | 5512b3ece0cbb5024b83099963222700aa45f59e (diff) | |
parent | fec6c6fec3e20637bee5d276fb61dd8b49a3f9cc (diff) |
Merge commit 'v2.6.29-rc7' into sched/core
Diffstat (limited to 'arch/x86/oprofile/op_model_ppro.c')
-rw-r--r-- | arch/x86/oprofile/op_model_ppro.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c index e9f80c744cf..10131fbdaad 100644 --- a/arch/x86/oprofile/op_model_ppro.c +++ b/arch/x86/oprofile/op_model_ppro.c @@ -78,8 +78,18 @@ static void ppro_setup_ctrs(struct op_msrs const * const msrs) if (cpu_has_arch_perfmon) { union cpuid10_eax eax; eax.full = cpuid_eax(0xa); - if (counter_width < eax.split.bit_width) - counter_width = eax.split.bit_width; + + /* + * For Core2 (family 6, model 15), don't reset the + * counter width: + */ + if (!(eax.split.version_id == 0 && + current_cpu_data.x86 == 6 && + current_cpu_data.x86_model == 15)) { + + if (counter_width < eax.split.bit_width) + counter_width = eax.split.bit_width; + } } /* clear all counters */ |