[Freedreno] [PATCH 7/7] drm/msm/a5xx: Disable UCHE global filter

[kholk11 at gmail.com]

From: Konrad Dybcio <konradybcio at gmail.com>

Port over the command from downstream to prevent undefined
behaviour.

Signed-off-by: Konrad Dybcio <konradybcio at gmail.com>
Signed-off-by: AngeloGioacchino Del Regno <kholk11 at 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 bdc852e7d979..71cd8a3a6bf1 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
@@ -722,6 +722,9 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
 	    adreno_is_a512(adreno_gpu))
 		gpu_rmw(gpu, REG_A5XX_RB_DBG_ECO_CNTL, 0, (1 << 9));
 
+	/* Disable UCHE global filter as SP can invalidate/flush independently */
+	gpu_write(gpu, 0x00000E81, BIT(29));
+
 	/* Enable USE_RETENTION_FLOPS */
 	gpu_write(gpu, REG_A5XX_CP_CHICKEN_DBG, 0x02000000);
 
-- 
2.28.0