This is a note to let you know that I've just added the patch titled
media: mediatek: vcodec: add core decode done event
to the 6.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
media-mediatek-vcodec-add-core-decode-done-event.patch
and it can be found in the queue-6.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 79a02fd8fb2ab7baeca071441ddf930607227040
Author: Yunfei Dong <yunfei.dong@xxxxxxxxxxxx>
Date: Wed Feb 1 07:33:13 2023 +0000
media: mediatek: vcodec: add core decode done event
[ Upstream commit d227af847ac2d7d90350124a1b2451e4fc1f050c ]
Need to make sure core decode done before current instance is free.
Fixes: 365e4ba01df4 ("media: mtk-vcodec: Add work queue for core hardware decode")
Signed-off-by: Yunfei Dong <yunfei.dong@xxxxxxxxxxxx>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
index 0da6e3e2ef0b3..ce7c82e38103a 100644
--- a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
+++ b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
@@ -196,7 +196,7 @@ bool vdec_msg_queue_wait_lat_buf_full(struct vdec_msg_queue *msg_queue)
spin_unlock(&core_ctx->ready_lock);
timeout_jiff = msecs_to_jiffies(1000 * (NUM_BUFFER_COUNT + 2));
- ret = wait_event_timeout(msg_queue->lat_ctx.ready_to_use,
+ ret = wait_event_timeout(msg_queue->ctx->msg_queue.core_dec_done,
msg_queue->lat_ctx.ready_num == NUM_BUFFER_COUNT,
timeout_jiff);
if (ret) {
@@ -257,6 +257,7 @@ static void vdec_msg_queue_core_work(struct work_struct *work)
mtk_vcodec_dec_disable_hardware(ctx, MTK_VDEC_CORE);
vdec_msg_queue_qbuf(&ctx->msg_queue.lat_ctx, lat_buf);
+ wake_up_all(&ctx->msg_queue.core_dec_done);
if (atomic_read(&lat_buf->ctx->msg_queue.core_list_cnt)) {
mtk_v4l2_debug(3, "re-schedule to decode for core: %d",
dev->msg_queue_core_ctx.ready_num);
@@ -281,6 +282,7 @@ int vdec_msg_queue_init(struct vdec_msg_queue *msg_queue,
atomic_set(&msg_queue->lat_list_cnt, 0);
atomic_set(&msg_queue->core_list_cnt, 0);
+ init_waitqueue_head(&msg_queue->core_dec_done);
msg_queue->wdma_addr.size =
vde_msg_queue_get_trans_size(ctx->picinfo.buf_w,
diff --git a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.h b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.h
index 56280d6682c5a..a75c04418f52e 100644
--- a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.h
+++ b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.h
@@ -76,6 +76,7 @@ struct vdec_lat_buf {
*
* @lat_list_cnt: used to record each instance lat list count
* @core_list_cnt: used to record each instance core list count
+ * @core_dec_done: core work queue decode done event
*/
struct vdec_msg_queue {
struct vdec_lat_buf lat_buf[NUM_BUFFER_COUNT];
@@ -90,6 +91,7 @@ struct vdec_msg_queue {
atomic_t lat_list_cnt;
atomic_t core_list_cnt;
+ wait_queue_head_t core_dec_done;
};
/**
