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authorIngo Molnar <mingo@elte.hu>2009-03-04 11:42:31 +0100
committerIngo Molnar <mingo@elte.hu>2009-03-04 11:42:31 +0100
commit8163d88c79dca35478a2405c837733ac50ea4c39 (patch)
tree6acae066a09b7dcbedab4a35ad62eba4ba3fd83c /arch/x86/oprofile
parenta1ef58f442542d8b3e3b963339fbc522c36e827c (diff)
parentfec6c6fec3e20637bee5d276fb61dd8b49a3f9cc (diff)
Merge commit 'v2.6.29-rc7' into perfcounters/core
Conflicts: arch/x86/mm/iomap_32.c
Diffstat (limited to 'arch/x86/oprofile')
-rw-r--r--arch/x86/oprofile/op_model_ppro.c14
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 85eb6268374..4da7230b3d1 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 */