diff options
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/qcom/hidma.c | 15 | ||||
| -rw-r--r-- | drivers/dma/qcom/hidma.h | 1 |
2 files changed, 13 insertions, 3 deletions
diff --git a/drivers/dma/qcom/hidma.c b/drivers/dma/qcom/hidma.c index 84e3699a19bd..34fb6afd229b 100644 --- a/drivers/dma/qcom/hidma.c +++ b/drivers/dma/qcom/hidma.c @@ -210,6 +210,7 @@ static int hidma_chan_init(struct hidma_dev *dmadev, u32 dma_sig) INIT_LIST_HEAD(&mchan->prepared); INIT_LIST_HEAD(&mchan->active); INIT_LIST_HEAD(&mchan->completed); + INIT_LIST_HEAD(&mchan->queued); spin_lock_init(&mchan->lock); list_add_tail(&mchan->chan.device_node, &ddev->channels); @@ -230,9 +231,15 @@ static void hidma_issue_pending(struct dma_chan *dmach) struct hidma_chan *mchan = to_hidma_chan(dmach); struct hidma_dev *dmadev = mchan->dmadev; unsigned long flags; + struct hidma_desc *qdesc, *next; int status; spin_lock_irqsave(&mchan->lock, flags); + list_for_each_entry_safe(qdesc, next, &mchan->queued, node) { + hidma_ll_queue_request(dmadev->lldev, qdesc->tre_ch); + list_move_tail(&qdesc->node, &mchan->active); + } + if (!mchan->running) { struct hidma_desc *desc = list_first_entry(&mchan->active, struct hidma_desc, @@ -315,17 +322,18 @@ static dma_cookie_t hidma_tx_submit(struct dma_async_tx_descriptor *txd) pm_runtime_put_autosuspend(dmadev->ddev.dev); return -ENODEV; } + pm_runtime_mark_last_busy(dmadev->ddev.dev); + pm_runtime_put_autosuspend(dmadev->ddev.dev); mdesc = container_of(txd, struct hidma_desc, desc); spin_lock_irqsave(&mchan->lock, irqflags); - /* Move descriptor to active */ - list_move_tail(&mdesc->node, &mchan->active); + /* Move descriptor to queued */ + list_move_tail(&mdesc->node, &mchan->queued); /* Update cookie */ cookie = dma_cookie_assign(txd); - hidma_ll_queue_request(dmadev->lldev, mdesc->tre_ch); spin_unlock_irqrestore(&mchan->lock, irqflags); return cookie; @@ -431,6 +439,7 @@ static int hidma_terminate_channel(struct dma_chan *chan) list_splice_init(&mchan->active, &list); list_splice_init(&mchan->prepared, &list); list_splice_init(&mchan->completed, &list); + list_splice_init(&mchan->queued, &list); spin_unlock_irqrestore(&mchan->lock, irqflags); /* this suspends the existing transfer */ diff --git a/drivers/dma/qcom/hidma.h b/drivers/dma/qcom/hidma.h index c7d014235c32..41e0aa283828 100644 --- a/drivers/dma/qcom/hidma.h +++ b/drivers/dma/qcom/hidma.h @@ -104,6 +104,7 @@ struct hidma_chan { struct dma_chan chan; struct list_head free; struct list_head prepared; + struct list_head queued; struct list_head active; struct list_head completed; |
