diff options
| author | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2024-01-09 23:41:08 +0300 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2024-02-02 02:13:41 +0300 |
| commit | 6a0dbcd20ef252ebf98af94186a2e53da7167bed (patch) | |
| tree | 16a9baaa7f42185a534630edff47d12987d53369 | |
| parent | 03facb39d6c6433a78d0f79c7a146b1e6a61943e (diff) | |
| download | linux-6a0dbcd20ef252ebf98af94186a2e53da7167bed.tar.xz | |
drm/msm/a6xx: set highest_bank_bit to 13 for a610
During the testing of Gnome on Qualcomm Robotics platform screen
corruption has been observed. Lowering GPU's highest_bank_bit from 14 to
13 seems to fix the screen corruption.
Note, the MDSS and DPU drivers use HBB=1 (which maps to the
highest_bank_bit = 14). So this change merely works around the UBWC
swizzling issue on this platform until the real cause is found.
Fixes: e7fc9398e608 ("drm/msm/a6xx: Add A610 support")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/573838/
Signed-off-by: Rob Clark <robdclark@chromium.org>
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c index c0bc924cd302..c9c55e2ea584 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c @@ -1287,7 +1287,7 @@ static void a6xx_calc_ubwc_config(struct adreno_gpu *gpu) gpu->ubwc_config.highest_bank_bit = 15; if (adreno_is_a610(gpu)) { - gpu->ubwc_config.highest_bank_bit = 14; + gpu->ubwc_config.highest_bank_bit = 13; gpu->ubwc_config.min_acc_len = 1; gpu->ubwc_config.ubwc_mode = 1; } |