[PATCH v3 03/10] riscv: Make legacy counter enum match the HW numbering

Andrew Jones ajones at ventanamicro.com
Fri Jun 30 03:35:03 PDT 2023


On Fri, Jun 30, 2023 at 10:30:06AM +0200, Alexandre Ghiti wrote:
> 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 at 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
>

Reviewed-by: Andrew Jones <ajones at ventanamicro.com>



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