From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
To: Christoph Hellwig <hch@infradead.org>,
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 16:08:24 +0400 [thread overview]
Message-ID: <20030429160824.A5767@jurassic.park.msu.ru> (raw)
In-Reply-To: <20030429122014.A27520@infradead.org>; from hch@infradead.org on Tue, Apr 29, 2003 at 12:20:14PM +0100
On Tue, Apr 29, 2003 at 12:20:14PM +0100, Christoph Hellwig wrote:
> Well, pci_* is a legacy API in Linux 2.5 now. Currently architectures
> can either implement dma_* or pci_* and the other one will be emulated,
> but I hope we can get rid of this mess soon and dma_* is the one
> implemented on the architectures and pci_* emulated in a single
> place - and maybe it can go away two stables series from now.
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.
Sigh...
Ivan.
next prev parent reply other threads:[~2003-04-29 11:57 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-28 18:38 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 [this message]
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
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
2003-04-29 20:22 James Bottomley
2003-04-29 20:46 ` Ivan Kokshaysky
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20030429160824.A5767@jurassic.park.msu.ru \
--to=ink@jurassic.park.msu.ru \
--cc=hch@infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mzyngier@freesurf.fr \
--cc=rth@twiddle.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®