[PATCH v2 6/7] drm/msm/a5xx: Disable flat shading optimization

kholk11
2020-09-28T20:47:31Z

From: Konrad Dybcio <konradybcio@gmail.com>

Port over the command from downstream to prevent undefined
behaviour.

Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Signed-off-by: AngeloGioacchino Del Regno <kholk11@gmail.com>
---
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 448fded571d3..6dac060902a3 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
@@ -759,6 +759,9 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
adreno_is_a540(adreno_gpu))
gpu_write(gpu, REG_A5XX_UCHE_DBG_ECO_CNTL_2, bit);

+ /* 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);

--
2.28.0