media: vim2m: use per-file handler work queue
It doesn't make sense to have a per-device work queue, as the scheduler should be called per file handler. Having a single one causes failures if multiple streams are filtered by vim2m. So, move it to be inside the context structure. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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8aa153f103
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@ -146,9 +146,6 @@ struct vim2m_dev {
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atomic_t num_inst;
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struct mutex dev_mutex;
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spinlock_t irqlock;
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struct delayed_work work_run;
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struct v4l2_m2m_dev *m2m_dev;
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};
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@ -167,6 +164,10 @@ struct vim2m_ctx {
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/* Transaction time (i.e. simulated processing time) in milliseconds */
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u32 transtime;
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struct mutex vb_mutex;
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struct delayed_work work_run;
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spinlock_t irqlock;
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/* Abort requested by m2m */
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int aborting;
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@ -490,7 +491,6 @@ static void job_abort(void *priv)
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static void device_run(void *priv)
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{
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struct vim2m_ctx *ctx = priv;
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struct vim2m_dev *dev = ctx->dev;
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struct vb2_v4l2_buffer *src_buf, *dst_buf;
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src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
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@ -507,18 +507,18 @@ static void device_run(void *priv)
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&ctx->hdl);
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/* Run delayed work, which simulates a hardware irq */
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schedule_delayed_work(&dev->work_run, msecs_to_jiffies(ctx->transtime));
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schedule_delayed_work(&ctx->work_run, msecs_to_jiffies(ctx->transtime));
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}
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static void device_work(struct work_struct *w)
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{
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struct vim2m_dev *vim2m_dev =
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container_of(w, struct vim2m_dev, work_run.work);
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struct vim2m_ctx *curr_ctx;
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struct vim2m_dev *vim2m_dev;
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struct vb2_v4l2_buffer *src_vb, *dst_vb;
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unsigned long flags;
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curr_ctx = v4l2_m2m_get_curr_priv(vim2m_dev->m2m_dev);
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curr_ctx = container_of(w, struct vim2m_ctx, work_run.work);
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vim2m_dev = curr_ctx->dev;
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if (NULL == curr_ctx) {
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pr_err("Instance released before the end of transaction\n");
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@ -530,10 +530,10 @@ static void device_work(struct work_struct *w)
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curr_ctx->num_processed++;
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spin_lock_irqsave(&vim2m_dev->irqlock, flags);
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spin_lock_irqsave(&curr_ctx->irqlock, flags);
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v4l2_m2m_buf_done(src_vb, VB2_BUF_STATE_DONE);
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v4l2_m2m_buf_done(dst_vb, VB2_BUF_STATE_DONE);
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spin_unlock_irqrestore(&vim2m_dev->irqlock, flags);
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spin_unlock_irqrestore(&curr_ctx->irqlock, flags);
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if (curr_ctx->num_processed == curr_ctx->translen
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|| curr_ctx->aborting) {
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@ -897,11 +897,10 @@ static int vim2m_start_streaming(struct vb2_queue *q, unsigned count)
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static void vim2m_stop_streaming(struct vb2_queue *q)
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{
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struct vim2m_ctx *ctx = vb2_get_drv_priv(q);
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struct vim2m_dev *dev = ctx->dev;
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struct vb2_v4l2_buffer *vbuf;
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unsigned long flags;
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cancel_delayed_work_sync(&dev->work_run);
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cancel_delayed_work_sync(&ctx->work_run);
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for (;;) {
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if (V4L2_TYPE_IS_OUTPUT(q->type))
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vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
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@ -911,9 +910,9 @@ static void vim2m_stop_streaming(struct vb2_queue *q)
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return;
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v4l2_ctrl_request_complete(vbuf->vb2_buf.req_obj.req,
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&ctx->hdl);
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spin_lock_irqsave(&ctx->dev->irqlock, flags);
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spin_lock_irqsave(&ctx->irqlock, flags);
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v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
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spin_unlock_irqrestore(&ctx->dev->irqlock, flags);
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spin_unlock_irqrestore(&ctx->irqlock, flags);
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}
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}
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@ -948,7 +947,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *ds
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src_vq->ops = &vim2m_qops;
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src_vq->mem_ops = &vb2_vmalloc_memops;
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src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
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src_vq->lock = &ctx->dev->dev_mutex;
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src_vq->lock = &ctx->vb_mutex;
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src_vq->supports_requests = true;
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ret = vb2_queue_init(src_vq);
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@ -962,7 +961,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *ds
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dst_vq->ops = &vim2m_qops;
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dst_vq->mem_ops = &vb2_vmalloc_memops;
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dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
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dst_vq->lock = &ctx->dev->dev_mutex;
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dst_vq->lock = &ctx->vb_mutex;
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return vb2_queue_init(dst_vq);
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}
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@ -1037,6 +1036,10 @@ static int vim2m_open(struct file *file)
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ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init);
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mutex_init(&ctx->vb_mutex);
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spin_lock_init(&ctx->irqlock);
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INIT_DELAYED_WORK(&ctx->work_run, device_work);
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if (IS_ERR(ctx->fh.m2m_ctx)) {
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rc = PTR_ERR(ctx->fh.m2m_ctx);
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@ -1117,8 +1120,6 @@ static int vim2m_probe(struct platform_device *pdev)
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if (!dev)
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return -ENOMEM;
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spin_lock_init(&dev->irqlock);
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ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
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if (ret)
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return ret;
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@ -1130,7 +1131,6 @@ static int vim2m_probe(struct platform_device *pdev)
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vfd = &dev->vfd;
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vfd->lock = &dev->dev_mutex;
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vfd->v4l2_dev = &dev->v4l2_dev;
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INIT_DELAYED_WORK(&dev->work_run, device_work);
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ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0);
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if (ret) {
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