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Diffstat (limited to 'arch/powerpc/kernel/pmc.c')
-rw-r--r--arch/powerpc/kernel/pmc.c35
1 files changed, 9 insertions, 26 deletions
diff --git a/arch/powerpc/kernel/pmc.c b/arch/powerpc/kernel/pmc.c
index 3d8f6f44641e..e40f6ddd98a4 100644
--- a/arch/powerpc/kernel/pmc.c
+++ b/arch/powerpc/kernel/pmc.c
@@ -19,38 +19,21 @@
#include <asm/processor.h>
#include <asm/pmc.h>
-#if defined(CONFIG_FSL_BOOKE) && !defined(CONFIG_E200)
-static void dummy_perf(struct pt_regs *regs)
-{
- unsigned int pmgc0 = mfpmr(PMRN_PMGC0);
-
- pmgc0 &= ~PMGC0_PMIE;
- mtpmr(PMRN_PMGC0, pmgc0);
-}
-#elif defined(CONFIG_PPC64) || defined(CONFIG_6xx)
-
-#ifndef MMCR0_PMAO
-#define MMCR0_PMAO 0
+#ifndef MMCR0_PMA0
+#define MMCR0_PMA0 0
#endif
-/* Ensure exceptions are disabled */
static void dummy_perf(struct pt_regs *regs)
{
- unsigned int mmcr0 = mfspr(SPRN_MMCR0);
-
- mmcr0 &= ~(MMCR0_PMXE|MMCR0_PMAO);
- mtspr(SPRN_MMCR0, mmcr0);
-}
+#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));
#else
-/* Ensure exceptions are disabled */
-static void dummy_perf(struct pt_regs *regs)
-{
- unsigned int mmcr0 = mfspr(SPRN_MMCR0);
-
- mmcr0 &= ~(MMCR0_PMXE);
- mtspr(SPRN_MMCR0, mmcr0);
-}
+ mtspr(SPRN_MMCR0, mfspr(SPRN_MMCR0) & ~MMCR0_PMXE);
#endif
+}
+
static DEFINE_SPINLOCK(pmc_owner_lock);
static void *pmc_owner_caller; /* mostly for debugging */