On Fri, 5 Apr 2024 at 18:59, Arnd Bergmann <arnd@xxxxxxxxxx> wrote:
>
> From: Arnd Bergmann <arnd@xxxxxxxx>
>
> The modification to a6xx_get_shader_block() had no effect other
> than causing a warning:
>
> drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c:843:6: error: variable 'out' set but not used [-Werror,-Wunused-but-set-variable]
> u64 out = dumper->iova + A6XX_CD_DATA_OFFSET;
>
> Revert this part of the previous patch.
>
> Fixes: 64d6255650d4 ("drm/msm: More fully implement devcoredump for a7xx")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Unfortunately this fix is not correct. The proper patch is present at
https://patchwork.freedesktop.org/patch/584955/?series=131663&rev=1
> ---
> drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c | 3 ---
> 1 file changed, 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
> index 1f5245fc2cdc..d4e1ebfcb021 100644
> --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
> +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
> @@ -840,7 +840,6 @@ static void a6xx_get_shader_block(struct msm_gpu *gpu,
> struct a6xx_crashdumper *dumper)
> {
> u64 *in = dumper->ptr;
> - u64 out = dumper->iova + A6XX_CD_DATA_OFFSET;
> size_t datasize = block->size * A6XX_NUM_SHADER_BANKS * sizeof(u32);
> int i;
>
> @@ -853,8 +852,6 @@ static void a6xx_get_shader_block(struct msm_gpu *gpu,
>
> in += CRASHDUMP_READ(in, REG_A6XX_HLSQ_DBG_AHB_READ_APERTURE,
> block->size, dumper->iova + A6XX_CD_DATA_OFFSET);
> -
> - out += block->size * sizeof(u32);
> }
>
> CRASHDUMP_FINI(in);
> --
> 2.39.2
>
--
With best wishes
Dmitry
