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SubjectRe: [PATCH v3 6/7] drm/msm/a5xx: Disable flat shading optimization
On Wed, Jan 13, 2021 at 07:33:38PM +0100, AngeloGioacchino Del Regno wrote:
> From: Konrad Dybcio <konrad.dybcio@somainline.org>
>
> Port over the command from downstream to prevent undefined
> behaviour.

Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>

> Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
> ---
> drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
> index 24ab51bb5a01..23fc851756de 100644
> --- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
> +++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
> @@ -791,6 +791,9 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
> adreno_is_a540(adreno_gpu))
> gpu_write(gpu, REG_A5XX_UCHE_DBG_ECO_CNTL_2, regbit);
>
> + /* Disable All flat shading optimization (ALLFLATOPTDIS) */
> + gpu_rmw(gpu, REG_A5XX_VPC_DBG_ECO_CNTL, 0, (1 << 10));
> +
> /* Protect registers from the CP */
> gpu_write(gpu, REG_A5XX_CP_PROTECT_CNTL, 0x00000007);
>
> --
> 2.29.2
>

--
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