[PATCH v4 03/10] riscv: Make legacy counter enum match the HW numbering

Alexandre Ghiti
2023-07-27T14:18:18Z

RISCV_PMU_LEGACY_INSTRET used to be set to 1 whereas the offset of this
hardware counter from CSR_CYCLE is actually 2: make this offset match the
real hw offset so that we can directly expose those values to userspace.

Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
---
drivers/perf/riscv_pmu_legacy.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/perf/riscv_pmu_legacy.c b/drivers/perf/riscv_pmu_legacy.c
index ca9e20bfc7ac..6a000abc28bb 100644
--- a/drivers/perf/riscv_pmu_legacy.c
+++ b/drivers/perf/riscv_pmu_legacy.c
@@ -13,7 +13,7 @@
#include <linux/platform_device.h>

#define RISCV_PMU_LEGACY_CYCLE 0
-#define RISCV_PMU_LEGACY_INSTRET 1
+#define RISCV_PMU_LEGACY_INSTRET 2

static bool pmu_init_done;

--
2.39.2