[POWERPC] PA6T PMC support

Support for PA6T-style PMC registers.

PMCs are completely implementation-dependent on PPC, and PA6T numbers them
differently from the IBM model.

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

1 files changed, 3 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/pmc.c b/arch/powerpc/kernel/pmc.c
index e40f6ddd98a4..24d7b7c99bb9 100644
--- a/arch/powerpc/kernel/pmc.c
+++ b/arch/powerpc/kernel/pmc.c
@@ -17,6 +17,7 @@
 #include <linux/module.h>
 
 #include <asm/processor.h>
+#include <asm/cputable.h>
 #include <asm/pmc.h>
 
 #ifndef MMCR0_PMA0
@@ -28,7 +29,8 @@ static void dummy_perf(struct pt_regs *regs)
 #if defined(CONFIG_FSL_BOOKE) && !defined(CONFIG_E200)
         mtpmr(PMRN_PMGC0, mfpmr(PMRN_PMGC0) & ~PMGC0_PMIE);
 #elif defined(CONFIG_PPC64) || defined(CONFIG_6xx)
-        mtspr(SPRN_MMCR0, mfspr(SPRN_MMCR0) & ~(MMCR0_PMXE|MMCR0_PMA0));
+        if (cur_cpu_spec->pmc_type == PPC_PMC_IBM)
+                mtspr(SPRN_MMCR0, mfspr(SPRN_MMCR0) & ~(MMCR0_PMXE|MMCR0_PMA0));
 #else
         mtspr(SPRN_MMCR0, mfspr(SPRN_MMCR0) & ~MMCR0_PMXE);
 #endif