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From: viresh.kumar@st.com (viresh kumar)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 6/8 resend] dw_dmac: Mark all tx_descriptors with DMA_CRTL_ACK after xfer finish
Date: Thu, 3 Mar 2011 09:15:10 +0530	[thread overview]
Message-ID: <4D6F0EC6.7030102@st.com> (raw)
In-Reply-To: <1299090855.6974.94.camel@vkoul-udesk3>

On 03/03/2011 12:04 AM, Koul, Vinod wrote:
> 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@st.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....
> 

Will be done

-- 
viresh

  reply	other threads:[~2011-03-03  3:45 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-28 10:41 [PATCH 0/8 resend] dw_dmac: Extending support & minor fixes Viresh Kumar
2011-02-28 10:41 ` [PATCH 1/8 resend] dw_dmac: Remove compilation dependency from AVR32 Viresh Kumar
2011-03-02 16:46   ` Koul, Vinod
2011-03-03  3:42     ` viresh kumar
2011-03-03  4:19       ` Shiraz Hashim
2011-03-05 11:38         ` Russell King - ARM Linux
2011-03-07  4:15           ` viresh kumar
2011-02-28 10:41 ` [PATCH 2/8 resend] dw_dmac: Move single descriptor from dwc->queue to dwc->active_list in dwc_complete_all Viresh Kumar
2011-02-28 10:41 ` [PATCH 3/8 resend] dw_dmac: call dwc_scan_descriptor from dwc_issue_pending only if active list is empty Viresh Kumar
2011-02-28 10:46   ` Jamie Iles
2011-02-28 10:58     ` viresh kumar
2011-02-28 10:41 ` [PATCH 4/8 resend] dw_dmac: calling dwc_scan_descriptors from dwc_tx_status() after taking lock Viresh Kumar
2011-03-02 18:13   ` Koul, Vinod
2011-03-03  3:44     ` viresh kumar
2011-02-28 10:41 ` [PATCH 5/8 resend] dw_dmac: adding support for 64 bit access width for memcpy xfers Viresh Kumar
2011-02-28 10:41 ` [PATCH 6/8 resend] dw_dmac: Mark all tx_descriptors with DMA_CRTL_ACK after xfer finish Viresh Kumar
2011-02-28 12:05   ` Sergei Shtylyov
2011-02-28 15:04     ` viresh kumar
2011-03-02 18:34   ` Koul, Vinod
2011-03-03  3:45     ` viresh kumar [this message]
2011-02-28 10:41 ` [PATCH 7/8 resend] dw_dmac.c: Pass Channel Allocation Order from platform_data Viresh Kumar
2011-03-02 18:37   ` Koul, Vinod
2011-03-03  3:48     ` viresh kumar
2011-02-28 10:41 ` [PATCH 8/8 resend] dw_dmac.c: Pass Channel Priority " Viresh Kumar
2011-03-02 18:46   ` Koul, Vinod
2011-03-03  3:51     ` viresh kumar
2011-03-02 16:39 ` [PATCH 0/8 resend] dw_dmac: Extending support & minor fixes Koul, Vinod
2011-03-03  3:40   ` viresh kumar

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