[PATCH v2,RESEND 1/2] drivers: perf: added capabilities for legacy PMU

[Vadim Shakirov]

Added the PERF_PMU_CAP_NO_INTERRUPT flag because the legacy pmu driver
does not provide sampling capabilities

Added the PERF_PMU_CAP_NO_EXCLUDE flag because the legacy pmu driver
does not provide the ability to disable counter incrementation in
different privilege modes

Suggested-by: Atish Patra <atishp at rivosinc.com>
Signed-off-by: Vadim Shakirov <vadim.shakirov at syntacore.com>
---
 drivers/perf/riscv_pmu_legacy.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/perf/riscv_pmu_legacy.c b/drivers/perf/riscv_pmu_legacy.c
index 79fdd667922e..a85fc9a15f03 100644
--- a/drivers/perf/riscv_pmu_legacy.c
+++ b/drivers/perf/riscv_pmu_legacy.c
@@ -117,6 +117,8 @@ static void pmu_legacy_init(struct riscv_pmu *pmu)
 	pmu->event_mapped = pmu_legacy_event_mapped;
 	pmu->event_unmapped = pmu_legacy_event_unmapped;
 	pmu->csr_index = pmu_legacy_csr_index;
+	pmu->pmu.capabilities |= PERF_PMU_CAP_NO_INTERRUPT;
+	pmu->pmu.capabilities |= PERF_PMU_CAP_NO_EXCLUDE;
 
 	perf_pmu_register(&pmu->pmu, "cpu", PERF_TYPE_RAW);
 }
-- 
2.34.1