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| author | Ingo Molnar <mingo@elte.hu> | 2009-03-11 10:49:34 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-11 10:49:34 +0100 |
| commit | d95c3578120e5bc4784069439f00ccb1b5f87717 (patch) | |
| tree | c819de31de3983f3d69f223ede07667ff23bf7da /arch/x86/oprofile/op_model_ppro.c | |
| parent | ba1d755a36f66101aa88ac9ebb54694def6ec38d (diff) | |
| parent | 78b020d035074fc3aa4d017353bb2c32e2aff56f (diff) | |
Merge branch 'x86/core' into cpus4096
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 */ |