Re: [PATCH] dmaengine: qcom-bam: Process multiple pending descriptors

Hi Vinod, async_desc->num_desc = num_alloc; async_desc->curr_desc = async_desc->desc; @@ -680,13 +684,18 @@ static struct dma_async_tx_descriptor *bam_prep_slave_sg(struct dma_chan *chan, static int bam_dma_terminate_all(struct dma_chan *chan) { str

Re: [PATCH] dmaengine: qcom-bam: Process multiple pending descriptors

On Thu, Jun 15, 2017 at 08:19:48PM +0530, Sricharan R wrote: > > I am not sure why suppressing callback helps? I think you should still > > continue filling up FIFO but also ensure interrupt so that callback can be > > invoked, user thread maybe waiting on that > > > > FWIW waiting for interrupt

Re: [PATCH] dmaengine: qcom-bam: Process multiple pending descriptors

Hi Vinod, On 6/15/2017 9:40 AM, Vinod Koul wrote: > On Wed, Jun 07, 2017 at 05:59:07PM +0530, Sricharan R wrote: >> The bam dmaengine has a circular FIFO to which we >> add hw descriptors that describes the transaction. >> The FIFO has space for about 4096 hw descriptors. >> >> Currently we add on

Re: [PATCH] dmaengine: qcom-bam: Process multiple pending descriptors

On Wed, Jun 07, 2017 at 05:59:07PM +0530, Sricharan R wrote: > The bam dmaengine has a circular FIFO to which we > add hw descriptors that describes the transaction. > The FIFO has space for about 4096 hw descriptors. > > Currently we add one descriptor and wait for it to > complete with interrupt