Decoder hardware will access incorrect iova address when tile buffer is
36bit, leading to iommu fault when hardware access dram data.
Fixes: 2f5d0aef37c6 ("media: mediatek: vcodec: support stateless AV1 decoder")
Signed-off-by: Xiaoyong Lu<xiaoyong.lu@xxxxxxxxxxxx>
---
- Test ok: mt8195 32bit and mt8188 36bit iova.
---
.../platform/mediatek/vcodec/vdec/vdec_av1_req_lat_if.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/media/platform/mediatek/vcodec/vdec/vdec_av1_req_lat_if.c b/drivers/media/platform/mediatek/vcodec/vdec/vdec_av1_req_lat_if.c
index 404a1a23fd40..420222c8a56d 100644
--- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_av1_req_lat_if.c
+++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_av1_req_lat_if.c
@@ -1658,9 +1658,9 @@ static void vdec_av1_slice_setup_tile_buffer(struct vdec_av1_slice_instance *ins
u32 allow_update_cdf = 0;
u32 sb_boundary_x_m1 = 0, sb_boundary_y_m1 = 0;
int tile_info_base;
- u32 tile_buf_pa;
+ u64 tile_buf_pa;
u32 *tile_info_buf = instance->tile.va;
- u32 pa = (u32)bs->dma_addr;
+ u64 pa = (u64)bs->dma_addr;
if (uh->disable_cdf_update == 0)
allow_update_cdf = 1;
@@ -1673,7 +1673,8 @@ static void vdec_av1_slice_setup_tile_buffer(struct vdec_av1_slice_instance *ins
tile_info_buf[tile_info_base + 0] = (tile_group->tile_size[tile_num] << 3);
tile_buf_pa = pa + tile_group->tile_start_offset[tile_num];
- tile_info_buf[tile_info_base + 1] = (tile_buf_pa >> 4) << 4;
+ tile_info_buf[tile_info_base + 1] = (unsigned int)(tile_buf_pa >> 4) << 4 +
+ ((unsigned int)(tile_buf_pa >> 32) & 0xf);
tile_info_buf[tile_info_base + 2] = (tile_buf_pa % 16) << 3;
sb_boundary_x_m1 =
--
2.25.1
