[POWERPC] Add PMC type to cputable

Add cputable entries for which type of PMC implementation the processor
has.

I've only filled in the current 64-bit processors, the unfilled default
value will have same behaviour as before so it can be done over time
as needed.

Also tidy up the dummy_perf implementation a bit, aggregating it into
one function with ifdefs instead of several.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/asm-powerpc/cputable.h b/include/asm-powerpc/cputable.h
index 80e314d2f247..e870b5393175 100644
--- a/include/asm-powerpc/cputable.h
+++ b/include/asm-powerpc/cputable.h
@@ -50,6 +50,12 @@ enum powerpc_oprofile_type {
         PPC_OPROFILE_CELL = 5,
 };
 
+enum powerpc_pmc_type {
+        PPC_PMC_DEFAULT = 0,
+        PPC_PMC_IBM = 1,
+        PPC_PMC_PA6T = 2,
+};
+
 struct cpu_spec {
         /* CPU is matched via (PVR & pvr_mask) == pvr_value */
         unsigned int    pvr_mask;
@@ -65,6 +71,7 @@ struct cpu_spec {
 
         /* number of performance monitor counters */
         unsigned int    num_pmcs;
+        enum powerpc_pmc_type pmc_type;
 
         /* this is called to initialize various CPU bits like L1 cache,
          * BHT, SPD, etc... from head.S before branching to identify_machine