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Subject[PATCH v2,1/7] media: mediatek: vcodec: add params to record lat and core lat_buf count
Date
Using lat_buf to share decoder information between lat and core work
queue, adding params to record the buf count.

Fixes: 365e4ba01df4 ("media: mtk-vcodec: Add work queue for core hardware decode")
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
- remove the mutex for atomic
- for there are only lat and core, no need to use hardware_index for every hardware.
---
.../platform/mediatek/vcodec/vdec_msg_queue.c | 23 ++++++++++++++++++-
.../platform/mediatek/vcodec/vdec_msg_queue.h | 6 +++++
2 files changed, 28 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 dc2004790a47..3f016c87d722 100644
--- a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
+++ b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
@@ -52,6 +52,22 @@ static struct list_head *vdec_get_buf_list(int hardware_index, struct vdec_lat_b
}
}

+static void vdec_msg_queue_inc(struct vdec_msg_queue *msg_queue, int hardware_index)
+{
+ if (hardware_index == MTK_VDEC_CORE)
+ atomic_inc(&msg_queue->core_list_cnt);
+ else
+ atomic_inc(&msg_queue->lat_list_cnt);
+}
+
+static void vdec_msg_queue_dec(struct vdec_msg_queue *msg_queue, int hardware_index)
+{
+ if (hardware_index == MTK_VDEC_CORE)
+ atomic_dec(&msg_queue->core_list_cnt);
+ else
+ atomic_dec(&msg_queue->lat_list_cnt);
+}
+
int vdec_msg_queue_qbuf(struct vdec_msg_queue_ctx *msg_ctx, struct vdec_lat_buf *buf)
{
struct list_head *head;
@@ -66,6 +82,7 @@ int vdec_msg_queue_qbuf(struct vdec_msg_queue_ctx *msg_ctx, struct vdec_lat_buf
list_add_tail(head, &msg_ctx->ready_queue);
msg_ctx->ready_num++;

+ vdec_msg_queue_inc(&buf->ctx->msg_queue, msg_ctx->hardware_index);
if (msg_ctx->hardware_index != MTK_VDEC_CORE)
wake_up_all(&msg_ctx->ready_to_use);
else
@@ -127,6 +144,7 @@ struct vdec_lat_buf *vdec_msg_queue_dqbuf(struct vdec_msg_queue_ctx *msg_ctx)
return NULL;
}
list_del(head);
+ vdec_msg_queue_dec(&buf->ctx->msg_queue, msg_ctx->hardware_index);

msg_ctx->ready_num--;
mtk_v4l2_debug(3, "dqueue buf type:%d addr: 0x%p num: %d",
@@ -241,10 +259,13 @@ int vdec_msg_queue_init(struct vdec_msg_queue *msg_queue,

vdec_msg_queue_init_ctx(&msg_queue->lat_ctx, MTK_VDEC_LAT0);
INIT_WORK(&msg_queue->core_work, vdec_msg_queue_core_work);
+
+ atomic_set(&msg_queue->lat_list_cnt, 0);
+ atomic_set(&msg_queue->core_list_cnt, 0);
+
msg_queue->wdma_addr.size =
vde_msg_queue_get_trans_size(ctx->picinfo.buf_w,
ctx->picinfo.buf_h);
-
err = mtk_vcodec_mem_alloc(ctx, &msg_queue->wdma_addr);
if (err) {
mtk_v4l2_err("failed to allocate wdma_addr buf");
diff --git a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.h b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.h
index c43d427f5f54..b1aa5572ba49 100644
--- a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.h
+++ b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.h
@@ -72,6 +72,9 @@ struct vdec_lat_buf {
* @wdma_wptr_addr: ube write point
* @core_work: core hardware work
* @lat_ctx: used to store lat buffer list
+ *
+ * @lat_list_cnt: used to record each instance lat list count
+ * @core_list_cnt: used to record each instance core list count
*/
struct vdec_msg_queue {
struct vdec_lat_buf lat_buf[NUM_BUFFER_COUNT];
@@ -82,6 +85,9 @@ struct vdec_msg_queue {

struct work_struct core_work;
struct vdec_msg_queue_ctx lat_ctx;
+
+ atomic_t lat_list_cnt;
+ atomic_t core_list_cnt;
};

/**
--
2.25.1
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