Re: [PATCH v3 03/10] riscv: Make legacy counter enum match the HW numbering
From: Andrew Jones <hidden>
Date: 2023-06-30 10:35:54
Also in:
linux-doc, linux-perf-users, linux-riscv, lkml
On Fri, Jun 30, 2023 at 10:30:06AM +0200, Alexandre Ghiti wrote:
quoted hunk ↗ jump to hunk
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 <redacted> --- 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
Reviewed-by: Andrew Jones <redacted> _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel