From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Ujfalusi Subject: Re: [PATCH 0/3] ARM/dma: edma: Serve cyclic clients via high priority queue Date: Mon, 28 Jul 2014 09:12:31 +0300 Message-ID: <53D5E9CF.10706@ti.com> References: <1404816398-12338-1-git-send-email-peter.ujfalusi@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <1404816398-12338-1-git-send-email-peter.ujfalusi-l0cyMroinI0@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: Errors-To: davinci-linux-open-source-bounces-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/@public.gmane.org To: nsekhar-l0cyMroinI0@public.gmane.org, joelf-l0cyMroinI0@public.gmane.org, vinod.koul-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org Cc: davinci-linux-open-source-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/@public.gmane.org, linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: linux-omap@vger.kernel.org On 07/08/2014 01:46 PM, Peter Ujfalusi wrote: > Hi, > = > It is preferred that audio is served with the highest priority queue in o= rder 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 pri= ority) > and move it back to default queue when the channel is terminated. ping? > = > 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(-) > = -- = P=E9ter From mboxrd@z Thu Jan 1 00:00:00 1970 From: peter.ujfalusi@ti.com (Peter Ujfalusi) Date: Mon, 28 Jul 2014 09:12:31 +0300 Subject: [PATCH 0/3] ARM/dma: edma: Serve cyclic clients via high priority queue In-Reply-To: <1404816398-12338-1-git-send-email-peter.ujfalusi@ti.com> References: <1404816398-12338-1-git-send-email-peter.ujfalusi@ti.com> Message-ID: <53D5E9CF.10706@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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. > 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? > > 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(-) > -- P?ter From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751802AbaG1GNQ (ORCPT ); Mon, 28 Jul 2014 02:13:16 -0400 Received: from devils.ext.ti.com ([198.47.26.153]:57032 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751748AbaG1GNN (ORCPT ); Mon, 28 Jul 2014 02:13:13 -0400 Message-ID: <53D5E9CF.10706@ti.com> Date: Mon, 28 Jul 2014 09:12:31 +0300 From: Peter Ujfalusi User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: , , CC: , , , , , Subject: Re: [PATCH 0/3] ARM/dma: edma: Serve cyclic clients via high priority queue References: <1404816398-12338-1-git-send-email-peter.ujfalusi@ti.com> In-Reply-To: <1404816398-12338-1-git-send-email-peter.ujfalusi@ti.com> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. > 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? > > 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(-) > -- Péter