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

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Date:	Mon, 28 Jul 2014 12:02:17 +0530
From:	Sekhar Nori <nsekhar@...com>
To:	Peter Ujfalusi <peter.ujfalusi@...com>, <joelf@...com>,
	<vinod.koul@...el.com>
CC:	<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 Monday 28 July 2014 11:42 AM, Peter Ujfalusi wrote:
> On 07/08/2014 01:46 PM, 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.

This should not really change any performance behavior as everything at
highest priority is same as everything at 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.
> 
> ping?

For 1/3 and 2/3:

Acked-by: Sekhar Nori <nsekhar@...com>

Vinod, can you take the series together with your tree (if you are happy
with the series, that is)? I don't have anything else queued for this
merge window.

Thanks,
Sekhar

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