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Subject[PATCH 4/5] media: mediatek: vcodec: add core decode done event
Date
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@mediatek.com>
---
drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c | 4 +++-
drivers/media/platform/mediatek/vcodec/vdec_msg_queue.h | 2 ++
2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
index 6275536d5063..9bbbd3fa20eb 100644
--- a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
+++ b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
@@ -201,7 +201,7 @@ 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) {
@@ -262,6 +262,7 @@ 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);
@@ -287,6 +288,7 @@ 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);
mutex_init(&msg_queue->list_cnt_mutex);
+ 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 53ad05396c8c..0944b6436fb6 100644
--- a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.h
+++ b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.h
@@ -77,6 +77,7 @@ 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
* @list_cnt_mutex: used to protect list count
+ * @core_dec_done: core work queue decode done event
*/
struct vdec_msg_queue {
struct vdec_lat_buf lat_buf[NUM_BUFFER_COUNT];
@@ -93,6 +94,7 @@ struct vdec_msg_queue {
atomic_t core_list_cnt;
/* Protects access to lat and core list cnt */
struct mutex list_cnt_mutex;
+ wait_queue_head_t core_dec_done;
};

/**
--
2.18.0
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