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authorKonrad Dybcio <konrad.dybcio@somainline.org>2021-01-13 21:33:39 +0300
committerRob Clark <robdclark@chromium.org>2021-01-31 22:34:35 +0300
commit3f2bc3856bf175c751736c7323188a401ad10a0d (patch)
treebeaa1881589280c0df42e2450ad25cc2fd19e3f9 /drivers/gpu/drm/msm/adreno
parentcce212d84415635ba9a848afd94e9f61444c9187 (diff)
downloadlinux-3f2bc3856bf175c751736c7323188a401ad10a0d.tar.xz
drm/msm/a5xx: Disable UCHE global filter
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')
-rw-r--r--drivers/gpu/drm/msm/adreno/a5xx.xml.h2
-rw-r--r--drivers/gpu/drm/msm/adreno/a5xx_gpu.c3
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a5xx.xml.h b/drivers/gpu/drm/msm/adreno/a5xx.xml.h
index 346cc6ff3a36..7b9fcfe95c04 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx.xml.h
+++ b/drivers/gpu/drm/msm/adreno/a5xx.xml.h
@@ -2367,6 +2367,8 @@ static inline uint32_t A5XX_VSC_RESOLVE_CNTL_Y(uint32_t val)
#define REG_A5XX_UCHE_ADDR_MODE_CNTL 0x00000e80
+#define REG_A5XX_UCHE_MODE_CNTL 0x00000e81
+
#define REG_A5XX_UCHE_SVM_CNTL 0x00000e82
#define REG_A5XX_UCHE_WRITE_THRU_BASE_LO 0x00000e87
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
index 23fc851756de..7e553d3efeb2 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
@@ -754,6 +754,9 @@ 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, REG_A5XX_UCHE_MODE_CNTL, BIT(29));
+
/* Enable USE_RETENTION_FLOPS */
gpu_write(gpu, REG_A5XX_CP_CHICKEN_DBG, 0x02000000);