From: Christoph Hellwig <hch@infradead.org>
To: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Marc Zyngier <mzyngier@freesurf.fr>,
rth@twiddle.net, linux-kernel@vger.kernel.org
Subject: Re: [Patch] DMA mapping API for Alpha
Date: Tue, 29 Apr 2003 13:32:03 +0100 [thread overview]
Message-ID: <20030429133202.A29182@infradead.org> (raw)
In-Reply-To: <20030429160824.A5767@jurassic.park.msu.ru>; from ink@jurassic.park.msu.ru on Tue, Apr 29, 2003 at 04:08:24PM +0400
On Tue, Apr 29, 2003 at 04:08:24PM +0400, Ivan Kokshaysky wrote:
> This won't change the fact that alpha is PCI-centric (as well as
> most other architectures) and in general "struct device" doesn't
> provide sufficient DMA information, unlike "struct pci_dev".
> pci_* being emulated means pci_dev to device translation and then
> rather complex and ugly device to pci_dev translation in arch code.
Well, if you're arch doesn't support any struct device * but those
embedded in struct pci_dev or NULL you don't need to do much
but sticking a to_pci_dev() ontop of each function.
Btw, did you read my posting from Friday on this issue? The subjects is
'[HEADS UP] planned change to <asm-generic/dma-mapping.h> will cause
+arch breakage'
next prev parent reply other threads:[~2003-04-29 12:19 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-28 18:38 [Patch] DMA mapping API for Alpha Marc Zyngier
2003-04-28 18:49 ` Jeff Garzik
2003-04-28 18:52 ` Marc Zyngier
2003-04-28 22:20 ` Alan Cox
2003-04-29 6:59 ` Christoph Hellwig
2003-04-29 11:05 ` Ivan Kokshaysky
2003-04-29 11:20 ` Christoph Hellwig
2003-04-29 12:08 ` Ivan Kokshaysky
2003-04-29 12:32 ` Christoph Hellwig [this message]
2003-04-29 12:59 ` Ivan Kokshaysky
2003-04-29 11:58 ` Marc Zyngier
2003-04-29 12:23 ` Ivan Kokshaysky
2003-04-29 12:37 ` Marc Zyngier
2003-04-29 12:41 ` Christoph Hellwig
2003-04-29 20:08 ` Ivan Kokshaysky
2003-05-01 10:56 ` David S. Miller
2003-04-30 12:07 ` Maciej W. Rozycki
2003-04-30 14:12 ` Jeff Garzik
2003-04-30 14:18 ` Marc Zyngier
2003-04-30 19:25 ` Maciej W. Rozycki
-- strict thread matches above, loose matches on Subject: below --
2003-04-29 20:22 James Bottomley
2003-04-29 20:46 ` Ivan Kokshaysky
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