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authorKonrad Dybcio <konrad.dybcio@somainline.org>2021-01-13 19:33:38 +0100
committerRob Clark <robdclark@chromium.org>2021-01-31 11:34:35 -0800
commitcce212d84415635ba9a848afd94e9f61444c9187 (patch)
tree5cdeb1fe36da4d90f15d075ee5d11f5a8615e7d1 /drivers/gpu/drm/msm/adreno/a5xx_gpu.c
parent89c1ab960717fb0e9b61c8cf90316bd41309e90a (diff)
downloadlinux-cce212d84415635ba9a848afd94e9f61444c9187.tar.bz2
drm/msm/a5xx: Disable flat shading optimization
Port over the command from downstream to prevent undefined behaviour. Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org> Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/adreno/a5xx_gpu.c')
-rw-r--r--drivers/gpu/drm/msm/adreno/a5xx_gpu.c3
1 files changed, 3 insertions, 0 deletions
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);