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From: "Bounine, Alexandre" <Alexandre.Bounine@idt.com>
To: Vinod Koul <vinod.koul@intel.com>
Cc: Russell King <rmk@arm.linux.org.uk>, <dan.j.williams@intel.com>,
	<linux-kernel@vger.kernel.org>, <akpm@linux-foundation.org>,
	Jassi Brar <jaswinder.singh@linaro.org>,
	Kumar Gala <galak@kernel.crashing.org>,
	Matt Porter <mporter@kernel.crashing.org>,
	Li Yang <leoli@freescale.com>
Subject: RE: [PATCH 01/11] dmaengine: add context parameter toprep_slave_sgand prep_dma_cyclic
Date: Tue, 7 Feb 2012 06:19:04 -0800	[thread overview]
Message-ID: <0CE8B6BE3C4AD74AB97D9D29BD24E552028C2A7B@CORPEXCH1.na.ads.idt.com> (raw)
In-Reply-To: <1328624057.26182.144.camel@vkoul-udesk3>

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On Tue, Feb 07, 2012 9:14 AM, Vinod Koul wrote:
> 
> On Tue, 2012-02-07 at 06:01 -0800, Bounine, Alexandre wrote:
> > Currently function private_candidate() allows filtering function
> > not to be specified and therefore skip the filter check.
> > It may be a good safety measure to ensure that channels specified
> > as DMA_SLAVE_EXT provide a corresponding filter routine so they
> > positively identify dma channel that will accept intended extra
> > parameter.
> > I assume that a system may have more than one dmac registered as
> > DMA_SLAVE_EXT.
> >
> > This is what I have for RapidIO - the filter call ensures that DMA
> > channel is associated with a RapidIO controller that provides access
> > to the specified SRIO device.
> For slave-dma it's better to have a filter :)

Better, but it can get away without it ;))

Alex.


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  reply	other threads:[~2012-02-07 14:19 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-02 21:32 [PATCH 00/11] dmaengine: add context parameter to prep_slave_sg and prep_dma_cyclic Alexandre Bounine
2012-02-02 21:32 ` [PATCH 01/11] " Alexandre Bounine
2012-02-02 21:43   ` Russell King
2012-02-03 15:31     ` [PATCH 01/11] dmaengine: add context parameter toprep_slave_sg " Bounine, Alexandre
2012-02-06 11:53       ` Vinod Koul
2012-02-06 15:04         ` Bounine, Alexandre
2012-02-06 15:28           ` Vinod Koul
2012-02-06 15:53             ` Russell King
2012-02-06 17:02               ` [PATCH 01/11] dmaengine: add context parameter toprep_slave_sgand prep_dma_cyclic Bounine, Alexandre
2012-02-06 18:07                 ` Vinod Koul
2012-02-06 18:45                   ` Bounine, Alexandre
2012-02-07  3:39                     ` Vinod Koul
2012-02-07 14:01                       ` Bounine, Alexandre
2012-02-07 14:14                         ` Vinod Koul
2012-02-07 14:19                           ` Bounine, Alexandre [this message]
2012-02-06 18:04               ` [PATCH 01/11] dmaengine: add context parameter toprep_slave_sg and prep_dma_cyclic Vinod Koul
2012-02-06 15:56             ` Bounine, Alexandre
2012-02-06 16:16               ` Russell King
2012-02-02 21:32 ` [PATCH 02/11] dmaengine/drivers: add context parameter for DMA_SLAVE and DMA_CYCLIC Alexandre Bounine
2012-02-02 21:32 ` [PATCH 03/11] plat-samsung: " Alexandre Bounine
2012-02-02 21:32 ` [PATCH 04/11] media/video: add new context parameter for DMA_SLAVE calls Alexandre Bounine
2012-02-02 21:32 ` [PATCH 05/11] mmc/host: add context parameter for DMA_SLAVE and DMA_CYCLIC Alexandre Bounine
2012-02-03  9:20   ` Ulf Hansson
2012-02-03 16:52     ` Bounine, Alexandre
2012-02-03 17:01       ` Russell King
2012-02-03 18:36         ` [PATCH 05/11] mmc/host: add context parameter for DMA_SLAVEand DMA_CYCLIC Bounine, Alexandre
2012-02-02 21:32 ` [PATCH 06/11] nand/gpmi: add context parameter to prep_slave_sg calls Alexandre Bounine
2012-02-02 22:13   ` Marek Vasut
2012-02-03 16:35     ` Bounine, Alexandre
2012-02-02 21:32 ` [PATCH 07/11] net/ks8842: add context parameter to prep_slave_sg call Alexandre Bounine
2012-02-02 21:32 ` [PATCH 08/11] spi/serial: add context parameter for DMA_SLAVE and DMA_CYCLIC Alexandre Bounine
2012-02-02 21:32 ` [PATCH 09/11] usb/musb: add context parameter to prep_slave_sg call Alexandre Bounine
2012-02-02 21:32 ` [PATCH 10/11] usb/renesas: " Alexandre Bounine
2012-02-02 21:32 ` [PATCH 11/11] sound/soc: add context parameter to prep_slave_sg and prep_dma_cyclic calls Alexandre Bounine
2012-02-02 22:22   ` Mark Brown
2012-02-03 16:41     ` Bounine, Alexandre

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