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Message-ID: <1299090855.6974.94.camel@vkoul-udesk3>
Date: Thu, 03 Mar 2011 00:04:15 +0530
From: "Koul, Vinod" <vinod.koul@...el.com>
To: Viresh Kumar <viresh.kumar@...com>
Cc: dan.j.williams@...el.com, linus.walleij@...ricsson.com,
amit.goel@...com, linux-kernel@...r.kernel.org,
armando.visconti@...com, shiraz.hashim@...com,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 6/8 resend] dw_dmac: Mark all tx_descriptors with
DMA_CRTL_ACK after xfer finish
On Mon, 2011-02-28 at 16:11 +0530, Viresh Kumar wrote:
> dwc_desc_get checks all descriptors for DMA_CTRL_ACK before allocating them for
> transfers. And descriptors are not marked with DMA_CRTL_ACK after transfer
> finishes. Thus descriptor once used is not usable again. This patch marks
> descriptors with DMA_CRTL_ACK after dma xfer finishes
>
> Signed-off-by: Viresh Kumar <viresh.kumar@...com>
> ---
> drivers/dma/dw_dmac.c | 7 +++++++
> 1 files changed, 7 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
> index c40b89f..01f783d 100644
> --- a/drivers/dma/dw_dmac.c
> +++ b/drivers/dma/dw_dmac.c
> @@ -196,6 +196,7 @@ dwc_descriptor_complete(struct dw_dma_chan *dwc, struct dw_desc *desc)
> dma_async_tx_callback callback;
> void *param;
> struct dma_async_tx_descriptor *txd = &desc->txd;
> + struct dw_desc *child;
Please align this with previous ones....
--
~Vinod
--
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