linux-kernel - Re: [PATCH 0/3] ARM/dma: edma: Serve cyclic clients via high priority queue

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Message-ID: <20140728113446.GB8181@intel.com>
Date:	Mon, 28 Jul 2014 17:04:46 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	Peter Ujfalusi <peter.ujfalusi@...com>
Cc:	nsekhar@...com, joelf@...com, linux@....linux.org.uk,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-omap@...r.kernel.org,
	davinci-linux-open-source@...ux.davincidsp.com,
	dmaengine@...r.kernel.org
Subject: Re: [PATCH 0/3] ARM/dma: edma: Serve cyclic clients via high
 priority queue

On Tue, Jul 08, 2014 at 01:46:35PM +0300, Peter Ujfalusi wrote:
> Hi,
> 
> It is preferred that audio is served with the highest priority queue in order to
> avoid delays in data transfer between memory and audio IP.
> 
> The following series will add an API to arch code to assign a channel to a given
> queue.
> The default queue is changed from 0 (highest priority) to lowest priority.
> In the dmaengine driver we move the cyclic channel to queue0 (highest priority)
> and move it back to default queue when the channel is terminated.

Applied, thanks

-- 
~Vinod

> 
> Regards,
> Peter
> ---
> Peter Ujfalusi (3):
>   ARM: edma: Set default queue to lowest priority
>   ARM: edma: Add edma_assign_channel_eventq() to move channel to a give
>     queue
>   dma: edma: Serve cyclic (audio) channels with high priority queue
> 
>  arch/arm/common/edma.c             | 31 ++++++++++++++++++++++++++++++-
>  drivers/dma/edma.c                 |  8 ++++++++
>  include/linux/platform_data/edma.h |  2 ++
>  3 files changed, 40 insertions(+), 1 deletion(-)
> 
> -- 
> 2.0.0
> 

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