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| author | David S. Miller <davem@davemloft.net> | 2009-03-18 23:53:57 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-03-18 23:53:57 -0700 |
| commit | 0702b30dd821ac8a4103ddbe545518713fdca9be (patch) | |
| tree | 8ce0c9f5e58c5ccb99870505eecd139986caa05e /arch/x86/oprofile/op_model_ppro.c | |
| parent | 192d7a4667c6d11d1a174ec4cad9a3c5d5f9043c (diff) | |
| parent | a1e4ee22863d41a6fbb24310d7951836cb6dafe7 (diff) | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
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 */ |