diff options
Diffstat (limited to 'arch/powerpc/perf/isa207-common.c')
| -rw-r--r-- | arch/powerpc/perf/isa207-common.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/perf/isa207-common.c b/arch/powerpc/perf/isa207-common.c index 0f4983ef4103..24f0a900a824 100644 --- a/arch/powerpc/perf/isa207-common.c +++ b/arch/powerpc/perf/isa207-common.c @@ -558,6 +558,14 @@ int isa207_compute_mmcr(u64 event[], int n_ev, if (!(pmc_inuse & 0x60)) mmcr->mmcr0 |= MMCR0_FC56; + /* + * Set mmcr0 (PMCCEXT) for p10 which + * will restrict access to group B registers + * when MMCR0 PMCC=0b00. + */ + if (cpu_has_feature(CPU_FTR_ARCH_31)) + mmcr->mmcr0 |= MMCR0_PMCCEXT; + mmcr->mmcr1 = mmcr1; mmcr->mmcra = mmcra; mmcr->mmcr2 = mmcr2; |