diff options
Diffstat (limited to 'arch/powerpc/perf/core-book3s.c')
-rw-r--r-- | arch/powerpc/perf/core-book3s.c | 45 |
1 files changed, 19 insertions, 26 deletions
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c index 6b5f8a94e7d8..42867469752d 100644 --- a/arch/powerpc/perf/core-book3s.c +++ b/arch/powerpc/perf/core-book3s.c @@ -266,51 +266,44 @@ static inline u32 perf_flags_from_msr(struct pt_regs *regs) static inline u32 perf_get_misc_flags(struct pt_regs *regs) { bool use_siar = regs_use_siar(regs); - unsigned long mmcra = regs->dsisr; - int marked = mmcra & MMCRA_SAMPLE_ENABLE; + unsigned long siar; + unsigned long addr; if (!use_siar) return perf_flags_from_msr(regs); /* - * Check the address in SIAR to identify the - * privilege levels since the SIER[MSR_HV, MSR_PR] - * bits are not set for marked events in power10 - * DD1. - */ - if (marked && (ppmu->flags & PPMU_P10_DD1)) { - unsigned long siar = mfspr(SPRN_SIAR); - if (siar) { - if (is_kernel_addr(siar)) - return PERF_RECORD_MISC_KERNEL; - return PERF_RECORD_MISC_USER; - } else { - if (is_kernel_addr(regs->nip)) - return PERF_RECORD_MISC_KERNEL; - return PERF_RECORD_MISC_USER; - } - } - - /* * If we don't have flags in MMCRA, rather than using * the MSR, we intuit the flags from the address in * SIAR which should give slightly more reliable * results */ if (ppmu->flags & PPMU_NO_SIPR) { - unsigned long siar = mfspr(SPRN_SIAR); + siar = mfspr(SPRN_SIAR); if (is_kernel_addr(siar)) return PERF_RECORD_MISC_KERNEL; return PERF_RECORD_MISC_USER; } /* PR has priority over HV, so order below is important */ - if (regs_sipr(regs)) - return PERF_RECORD_MISC_USER; - - if (regs_sihv(regs) && (freeze_events_kernel != MMCR0_FCHV)) + if (regs_sipr(regs)) { + if (!(ppmu->flags & PPMU_P10)) + return PERF_RECORD_MISC_USER; + } else if (regs_sihv(regs) && (freeze_events_kernel != MMCR0_FCHV)) return PERF_RECORD_MISC_HYPERVISOR; + /* + * Check the address in SIAR to identify the + * privilege levels since the SIER[MSR_HV, MSR_PR] + * bits are not set correctly in power10 sometimes + */ + if (ppmu->flags & PPMU_P10) { + siar = mfspr(SPRN_SIAR); + addr = siar ? siar : regs->nip; + if (!is_kernel_addr(addr)) + return PERF_RECORD_MISC_USER; + } + return PERF_RECORD_MISC_KERNEL; } |