perf_counter/x86: Fix the model number of Intel Core2 processors

Fix the model number of Intel Core2 processors according to the
documentation: Intel Processor Identification with the CPUID
Instruction: http://www.intel.com/support/processors/sb/cs-009861.htm

Signed-off-by: Yong Wang <yong.y.wang@intel.com>
Also-Reported-by: Arnd Bergmann <arnd@arndb.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20090610090612.GA26580@ywang-moblin2.bj.intel.com>
[ Added two more model numbers suggested by Arnd Bergmann ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 4 insertions, 1 deletions

diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c
index 40978aac6e0f..49f258537cbf 100644
--- a/arch/x86/kernel/cpu/perf_counter.c
+++ b/arch/x86/kernel/cpu/perf_counter.c
@@ -1407,7 +1407,10 @@ static int intel_pmu_init(void)
          * Install the hw-cache-events table:
          */
         switch (boot_cpu_data.x86_model) {
-        case 17:
+        case 15: /* original 65 nm celeron/pentium/core2/xeon, "Merom"/"Conroe" */
+        case 22: /* single-core 65 nm celeron/core2solo "Merom-L"/"Conroe-L" */
+        case 23: /* current 45 nm celeron/core2/xeon "Penryn"/"Wolfdale" */
+        case 29: /* six-core 45 nm xeon "Dunnington" */
                 memcpy(hw_cache_event_ids, core2_hw_cache_event_ids,
                        sizeof(hw_cache_event_ids));