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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 Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Nicolas Dufresne --- .../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 d08be051d0ab..b32f5e942501 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 @@ -1134,9 +1134,17 @@ 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; -- 2.51.0.windows.2