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media: qcom: venus: drop extra padding in NV12 raw size calculation

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get_framesize_raw_nv12() currently adds SZ_4K to the UV plane size and an
additional SZ_8K to the total buffer size. This inflates the calculated
sizeimage and leads userspace to over-allocate buffers without a clear
requirement.

Remove the extra SZ_4K/SZ_8K padding and compute the NV12 size as the sum
of Y and UV planes, keeping the final ALIGN(size, SZ_4K) intact.

Fixes: e1cb72de70 ("media: venus: helpers: move frame size calculations on common place")
Signed-off-by: Renjiang Han <renjiang.han@oss.qualcomm.com>
Reviewed-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
This commit is contained in:
Renjiang Han 2026-03-31 10:07:07 +05:30 committed by Bryan O'Donoghue
parent e49686fff1
commit e1c9adabb2
1 changed files with 2 additions and 2 deletions
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4
drivers/media/platform/qcom/venus/helpers.c
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@ -954,8 +954,8 @@ static u32 get_framesize_raw_nv12(u32 width, u32 height)
uv_sclines = ALIGN(((height + 1) >> 1), 16);
y_plane = y_stride * y_sclines;
uv_plane = uv_stride * uv_sclines + SZ_4K;
size = y_plane + uv_plane + SZ_8K;
uv_plane = uv_stride * uv_sclines;
size = y_plane + uv_plane;
return ALIGN(size, SZ_4K);
}