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From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
To: randy.dunlap@oracle.com
Cc: fujita.tomonori@lab.ntt.co.jp, linux-kernel@vger.kernel.org,
	akpm@linux-foundation.org, muli@il.ibm.com, alexisb@us.ibm.com
Subject: Re: [PATCH 1/2] add the device argument to dma_mapping_error
Date: Thu, 15 May 2008 10:12:25 +0900	[thread overview]
Message-ID: <20080515101207T.tomof@acm.org> (raw)
In-Reply-To: <20080513083901.2f571418.randy.dunlap@oracle.com>

On Tue, 13 May 2008 08:39:01 -0700
Randy Dunlap <randy.dunlap@oracle.com> wrote:

> On Tue, 13 May 2008 15:04:51 +0900 FUJITA Tomonori wrote:
> 
> > dma_mapping_error doesn't take a pointer to the device unlike other
> > DMA operations. So we can't have dma_mapping_ops per device.
> > 
> > Note that POWER already has dma_mapping_ops per device but all the
> > POWER IOMMUs use the same dma_mapping_error function. x86 IOMMUs use
> > different dma_mapping_error functions. So dma_mapping_error needs the
> > device argument.
> > 
> > Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

(snip)

> Seems to be missing updates to Documentation/DMA-API.txt ??

Oops, I'll post an updated version against -mm soon.

Thanks,

  reply	other threads:[~2008-05-15  1:16 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-13  6:04 [PATCH 0/2] x86: per-device dma_mapping_ops FUJITA Tomonori
2008-05-13  6:04 ` [PATCH 1/2] add the device argument to dma_mapping_error FUJITA Tomonori
2008-05-13  6:04   ` [PATCH 2/2] x86: per-device dma_mapping_ops support FUJITA Tomonori
2008-05-14  5:55     ` Muli Ben-Yehuda
2008-05-15 20:45     ` Yinghai Lu
2008-05-16  3:44       ` FUJITA Tomonori
2008-05-13 15:39   ` [PATCH 1/2] add the device argument to dma_mapping_error Randy Dunlap
2008-05-15  1:12     ` FUJITA Tomonori [this message]
2008-05-14  5:49 ` [PATCH 0/2] x86: per-device dma_mapping_ops Muli Ben-Yehuda
2008-05-15  1:12   ` FUJITA Tomonori
2008-05-15  2:00     ` Alexis Bruemmer
2008-05-15  2:30       ` FUJITA Tomonori
2008-05-15 18:21         ` Alexis Bruemmer
2008-05-15 15:17       ` Muli Ben-Yehuda
2008-05-15 15:15     ` Muli Ben-Yehuda
2008-05-15  9:01 ` Andi Kleen
2008-05-15  9:16   ` FUJITA Tomonori
2008-05-15  9:30     ` Andi Kleen
2008-05-15  9:41       ` FUJITA Tomonori
2008-05-15 10:48         ` Andi Kleen
2008-05-15 15:32           ` Muli Ben-Yehuda
2008-05-16  3:44           ` FUJITA Tomonori
2008-05-16  5:24             ` Andi Kleen
2008-05-19  6:32               ` FUJITA Tomonori
2008-05-15 15:26         ` Muli Ben-Yehuda
2008-05-15 21:03           ` Andi Kleen
2008-05-15 21:39             ` Muli Ben-Yehuda
2008-05-15 21:45               ` Andi Kleen
2008-05-15 21:53                 ` Muli Ben-Yehuda
2008-05-15 22:05                   ` Muli Ben-Yehuda
2008-05-15 18:25     ` Alexis Bruemmer

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