[PATCH v7 07/10] media: mediatek: vcodec: Fix vp9 4096x2176 fail for profile2
From: Kyrie Wu <hidden>
Date: 2026-01-27 02:43:14
Also in:
linux-devicetree, linux-media, linux-mediatek, lkml
Subsystem:
media input infrastructure (v4l/dvb), mediatek media driver, the rest · Maintainers:
Mauro Carvalho Chehab, Tiffany Lin, Andrew-CT Chen, Yunfei Dong, Linus Torvalds
The DRAM address of the VP9 decoder tile info buffers may require
as much as 36bits for 4096x2176 resolution. Fold the 4 most significant
bits into the lower (padding) four bits of address.
Fixes: 5d418351ca8f1 ("media: mediatek: vcodec: support stateless VP9 decoding")
Signed-off-by: Kyrie Wu <redacted>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
---
.../mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c
index e8ba99d31e74..a958e16eb380 100644
--- a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c
+++ b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c@@ -1133,9 +1133,17 @@ static int vdec_vp9_slice_setup_tile_buffer(struct vdec_vp9_slice_instance *inst return -EINVAL; } tiles->size[i][j] = size; + /* + * If the system supports 64-bit DMA addresses, the upper 4 bits + * of the address are also encoded into the buffer entry. + * The buffer pointer (tb) is incremented after each entry is written. + */ if (tiles->mi_rows[i]) { *tb++ = (size << 3) + ((offset << 3) & 0x7f); - *tb++ = pa & ~0xf; + *tb = pa & GENMASK(31, 4); + if (IS_ENABLED(CONFIG_ARCH_DMA_ADDR_T_64BIT)) + *tb |= (pa >> 32) & GENMASK(3, 0); + tb++; *tb++ = (pa << 3) & 0x7f; mi_row = (tiles->mi_rows[i] - 1) & 0x1ff; mi_col = (tiles->mi_cols[j] - 1) & 0x3f;
--
2.45.2