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Diffstat (limited to 'arch/powerpc/perf/core-book3s.c')
-rw-r--r--arch/powerpc/perf/core-book3s.c45
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;
}