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 13:41:00 +0100 [thread overview]
Message-ID: <20030429134100.A30251@infradead.org> (raw)
In-Reply-To: <20030429162322.B5767@jurassic.park.msu.ru>; from ink@jurassic.park.msu.ru on Tue, Apr 29, 2003 at 04:23:22PM +0400
On Tue, Apr 29, 2003 at 04:23:22PM +0400, Ivan Kokshaysky wrote:
> Agreed, but what if your EISA-PCI bridge has only 30 address lines wired
> to PCI? Yes, we can check this for EISA device because it has *real*
> PCI parent (thanks, Marc :-), but what about ISA/legacy/whatever drivers?
> I doubt that all of them bother to set dma_mask pointer (so you can have
> an oops there).
If you have a struct device for them you need to set the dma_mask
and it should better have some parent (real or fake, at least the
data structures must be setup). The old NULL argument will stay for
while. If at some point all drivers doing that are converted (or
go away :)) it could be dropped.
next prev parent reply other threads:[~2003-04-29 12:28 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
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 [this message]
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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