diff options
Diffstat (limited to 'arch/powerpc/kernel/pmc.c')
| -rw-r--r-- | arch/powerpc/kernel/pmc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/pmc.c b/arch/powerpc/kernel/pmc.c index 2d333cc8408..e6fb194fe53 100644 --- a/arch/powerpc/kernel/pmc.c +++ b/arch/powerpc/kernel/pmc.c @@ -43,8 +43,13 @@ static void dummy_perf(struct pt_regs *regs) mtspr(SPRN_MMCR0, mmcr0); } #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); } #endif |