From: Ian Molton <spyro@f2s.com>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: James.Bottomley@SteelEye.com, rmk+lkml@arm.linux.org.uk,
david-b@pacbell.net, linux-kernel@vger.kernel.org,
greg@kroah.com, tony@atomide.com, jamey.hicks@hp.com,
joshua@joshuawise.com
Subject: Re: DMA API issues
Date: Sun, 20 Jun 2004 17:57:39 +0100 [thread overview]
Message-ID: <20040620175739.453dae8a.spyro@f2s.com> (raw)
In-Reply-To: <20040620162611.GB16038@havoc.gtf.org>
On Sun, 20 Jun 2004 12:26:11 -0400
Jeff Garzik <jgarzik@pobox.com> wrote:
>
> Are you purposefully ignoring James?
No, Im failing to see his point which appears to be that if we modify
the DMA API it has to work on all platforms, even if it doesnt work on
them currently.
> He is saying the DMA API must be uniform across all platforms. Your
> proposal
>
> 1) breaks this
How? I havent proposed any alteration to the API, just the allocation
system inside it. No drivers would need modification and any platform
not using these allocators would continue to not use them just as it
currently does(nt).
> 2) is unneeded, as many other drivers in this same situation simply
> use ioremap
Except that the OHCI driver (for example) doesnt. it uses the DMA API
(quite rightly) and to use ioremap would mean creating two ohci drivers,
one using the DMA API and one not, which is wasteful and asking for
trouble.
next prev parent reply other threads:[~2004-06-20 16:59 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-18 18:20 DMA API issues James Bottomley
2004-06-18 18:35 ` Ian Molton
2004-06-18 18:52 ` James Bottomley
2004-06-18 18:57 ` Ian Molton
2004-06-18 19:20 ` David Brownell
2004-06-18 19:44 ` Ian Molton
2004-06-18 19:57 ` James Bottomley
2004-06-18 21:08 ` David Brownell
2004-06-18 21:14 ` James Bottomley
2004-06-18 22:38 ` David Brownell
2004-06-18 23:07 ` James Bottomley
2004-06-18 23:31 ` Ian Molton
2004-06-19 18:23 ` David Brownell
2004-06-19 20:41 ` Russell King
2004-06-19 21:46 ` James Bottomley
2004-06-19 22:49 ` Ian Molton
2004-06-20 13:37 ` James Bottomley
2004-06-20 15:50 ` Ian Molton
2004-06-20 16:26 ` Jeff Garzik
2004-06-20 16:57 ` Ian Molton [this message]
2004-06-20 20:15 ` David Brownell
2004-06-20 16:46 ` James Bottomley
2004-06-20 18:02 ` Oliver Neukum
2004-06-20 19:27 ` James Bottomley
2004-06-20 19:34 ` Oliver Neukum
2004-06-20 20:07 ` David Brownell
2004-06-20 20:18 ` David Brownell
2004-06-20 20:02 ` David Brownell
2004-06-18 23:25 ` Ian Molton
2004-06-18 23:29 ` James Bottomley
2004-06-18 23:51 ` Ian Molton
2004-06-19 0:04 ` James Bottomley
2004-06-19 0:14 ` Ian Molton
2004-06-19 3:49 ` James Bottomley
2004-06-20 20:59 ` Jamey Hicks
2004-06-19 15:11 ` DMA API issues... summary Ian Molton
2004-06-20 20:49 ` Joshua Wise
2004-06-18 19:30 ` DMA API issues James Bottomley
2004-06-18 19:56 ` Ian Molton
2004-06-18 19:22 ` Jamey Hicks
2004-06-18 19:41 ` James Bottomley
2004-06-18 20:02 ` Oliver Neukum
2004-06-18 20:07 ` James Bottomley
2004-06-18 20:14 ` Benjamin Herrenschmidt
2004-06-18 20:24 ` James Bottomley
2004-06-18 21:20 ` Russell King
2004-06-18 23:20 ` Ian Molton
2004-06-20 18:25 ` Deepak Saxena
-- strict thread matches above, loose matches on Subject: below --
2004-06-18 16:59 Ian Molton
2004-06-18 18:07 ` Matt Porter
2004-06-18 18:19 ` Ian Molton
2004-06-18 18:58 ` Matt Porter
2004-06-18 18:33 ` Jamey Hicks
2004-06-18 19:21 ` Matt Porter
2004-06-18 19:43 ` Russell King
2004-06-21 13:35 ` Takashi Iwai
2004-06-21 23:08 ` Russell King
2004-06-22 2:06 ` Jeff Garzik
2004-06-22 3:18 ` Linus Torvalds
2004-06-22 3:26 ` Linus Torvalds
2004-06-22 10:40 ` Takashi Iwai
2004-06-23 12:34 ` Russell King
2004-06-23 15:36 ` Takashi Iwai
2004-06-23 15:44 ` Russell King
2004-06-23 16:01 ` Takashi Iwai
2004-06-23 16:10 ` Russell King
2004-06-22 10:48 ` Takashi Iwai
2004-06-18 19:48 ` Jamey Hicks
2004-06-18 21:08 ` Jeff Garzik
2004-06-18 22:12 ` Richard B. Johnson
2004-06-18 23:27 ` Ian Molton
2004-06-18 23:26 ` Ian Molton
2004-06-18 23:30 ` James Bottomley
2004-06-18 23:32 ` Jeff Garzik
[not found] ` <20040619005714.37b68453.spyro@f2s.com>
[not found] ` <40D3838B.2070608@pobox.com>
[not found] ` <20040619011621.4491600a.spyro@f2s.com>
[not found] ` <40D3872F.5010007@pobox.com>
2004-06-19 0:34 ` Ian Molton
2004-06-19 21:15 ` Tony Lindgren
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