[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <ZRVbZwQz13hL2QfY@matsya>
Date: Thu, 28 Sep 2023 16:24:31 +0530
From: Vinod Koul <vkoul@...nel.org>
To: Miquel Raynal <miquel.raynal@...tlin.com>
Cc: Lizhi Hou <lizhi.hou@....com>, Brian Xu <brian.xu@....com>,
Raj Kumar Rampelli <raj.kumar.rampelli@....com>,
Michal Simek <michal.simek@....com>, dmaengine@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] dmaengine: xilinx: xdma: Support cyclic transfers
On 22-09-23, 18:20, Miquel Raynal wrote:
> @@ -583,7 +690,36 @@ static int xdma_alloc_chan_resources(struct dma_chan *chan)
> static enum dma_status xdma_tx_status(struct dma_chan *chan, dma_cookie_t cookie,
> struct dma_tx_state *state)
> {
> - return dma_cookie_status(chan, cookie, state);
> + struct xdma_chan *xdma_chan = to_xdma_chan(chan);
> + struct xdma_desc *desc = NULL;
> + struct virt_dma_desc *vd;
> + enum dma_status ret;
> + unsigned long flags;
> + unsigned int period_idx;
> + u32 residue = 0;
> +
> + ret = dma_cookie_status(chan, cookie, state);
> + if (ret == DMA_COMPLETE)
> + return ret;
> +
> + spin_lock_irqsave(&xdma_chan->vchan.lock, flags);
> +
> + vd = vchan_find_desc(&xdma_chan->vchan, cookie);
> + if (vd)
> + desc = to_xdma_desc(vd);
vd is not used in below check, so should be done after below checks, why
do this for cyclic case?
Otherwise series lgtm, just fix the error reported by test bot
> + if (!desc || !desc->cyclic) {
> + spin_unlock_irqrestore(&xdma_chan->vchan.lock, flags);
> + return ret;
> + }
--
~Vinod
Powered by blists - more mailing lists