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drm/msm/dpu: fix UV scanlines calculation for YUV UBWC formats

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The UV scanlines is calculated with (height + 1) / 2 unlike
the Y scanlines, add back the correct scanlines calculation
for UBWC YUV formats.

Fixes: 2f3ff6ab8f ("drm/msm/dpu: use standard functions in _dpu_format_populate_plane_sizes_ubwc()")
Fixes: ada4a19ed2 ("drm/msm/dpu: rewrite _dpu_format_populate_plane_sizes_ubwc()")
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/718309/
Link: https://lore.kernel.org/r/20260414-topic-sm8x50-msm-dpu1-formats-qc10c-v1-1-0b62325b9030@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
This commit is contained in:
Neil Armstrong 2026-04-14 17:14:30 +02:00 committed by Dmitry Baryshkov
parent 795b19cbcf
commit 933430f170
1 changed files with 7 additions and 5 deletions
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12
drivers/gpu/drm/msm/disp/dpu1/dpu_formats.c
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@ -61,7 +61,7 @@ static int _dpu_format_populate_plane_sizes_ubwc(
bool meta = MSM_FORMAT_IS_UBWC(fmt);
if (MSM_FORMAT_IS_YUV(fmt)) {
unsigned int stride, sclines;
unsigned int stride, y_sclines, uv_sclines;
unsigned int y_tile_width, y_tile_height;
unsigned int y_meta_stride, y_meta_scanlines;
unsigned int uv_meta_stride, uv_meta_scanlines;
@ -77,23 +77,25 @@ static int _dpu_format_populate_plane_sizes_ubwc(
y_tile_width = 32;
}
sclines = round_up(fb->height, 16);
y_sclines = round_up(fb->height, 16);
uv_sclines = round_up((fb->height+1)>>1, 16);
y_tile_height = 4;
} else {
stride = round_up(fb->width, 128);
y_tile_width = 32;
sclines = round_up(fb->height, 32);
y_sclines = round_up(fb->height, 32);
uv_sclines = round_up((fb->height+1)>>1, 32);
y_tile_height = 8;
}
layout->plane_pitch[0] = stride;
layout->plane_size[0] = round_up(layout->plane_pitch[0] *
sclines, DPU_UBWC_PLANE_SIZE_ALIGNMENT);
y_sclines, DPU_UBWC_PLANE_SIZE_ALIGNMENT);
layout->plane_pitch[1] = stride;
layout->plane_size[1] = round_up(layout->plane_pitch[1] *
sclines, DPU_UBWC_PLANE_SIZE_ALIGNMENT);
uv_sclines, DPU_UBWC_PLANE_SIZE_ALIGNMENT);
if (!meta)
return 0;