[PATCH 3/8] dmaengine: split out virtual channel DMA support from sa11x0 driver
Laxman Dewangan
ldewangan at nvidia.com
Tue Apr 24 06:35:29 EDT 2012
On Wednesday 18 April 2012 03:41 PM, Russell King wrote:
> +/**
> + * vchan_cookie_complete - report completion of a descriptor
> + * vd: virtual descriptor to update
> + *
> + * vc.lock must be held by caller
> + */
> +static inline void vchan_cookie_complete(struct virt_dma_desc *vd)
> +{
> + struct virt_dma_chan *vc = to_virt_chan(vd->tx.chan);
> +
> + dma_cookie_complete(&vd->tx);
> + dev_vdbg(vc->chan.device->dev, "txd %p[%x]: marked complete\n",
> + vd, vd->tx.cookie);
> + list_add_tail(&vd->node,&vc->desc_completed);
> +
> + tasklet_schedule(&vc->task);
> +}
For cyclic case, we will not like to call the dma_cookie_complete() but
want to put the desc in callback list.
So can we have one more arg on this function which byspass the call of
dma_cookie_complete()
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