From: James Bottomley <James.Bottomley@steeleye.com>
To: Miles Bader <miles@gnu.org>
Cc: James Bottomley <James.Bottomley@SteelEye.com>,
linux-kernel@vger.kernel.org
Subject: Re: [RFC] generic device DMA implementation
Date: Wed, 04 Dec 2002 21:06:37 -0600 [thread overview]
Message-ID: <200212050306.gB536bV05710@localhost.localdomain> (raw)
In-Reply-To: Message from Miles Bader <miles@lsi.nec.co.jp> of "05 Dec 2002 11:31:10 +0900." <buou1htryc1.fsf@mcspd15.ucom.lsi.nec.co.jp>
miles@lsi.nec.co.jp said:
> My thinking was that a driver might want to do things like --
> if (dma_addr_is_consistent (some_funky_addr)) {
> do it quickly;
> } else
> do_it_the_slow_way (some_funky_addr);
> in other words, something besides just calling the sync functions, in
> the case where the memory was consistent.
Actually, I did code an api for that case, it's the dma_get_conformance() one
which tells you the consistency type of memory that you actually got, so if
you really need to tell the difference, you can.
James
next prev parent reply other threads:[~2002-12-05 2:59 UTC|newest]
Thread overview: 119+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-04 17:47 James Bottomley
2002-12-04 18:27 ` Jeff Garzik
2002-12-04 19:36 ` James Bottomley
2002-12-04 21:19 ` Miles Bader
2002-12-04 21:21 ` Miles Bader
2002-12-04 21:42 ` James Bottomley
2002-12-05 5:44 ` Miles Bader
2002-12-04 21:46 ` James Bottomley
2002-12-05 2:31 ` Miles Bader
2002-12-05 3:06 ` James Bottomley [this message]
2002-12-05 5:02 ` David Gibson
2002-12-05 11:15 ` Benjamin Herrenschmidt
2002-12-05 11:16 ` William Lee Irwin III
2002-12-05 15:12 ` James Bottomley
2002-12-05 0:47 ` David Gibson
2002-12-05 0:54 ` Jeff Garzik
2002-12-05 1:44 ` James Bottomley
2002-12-05 2:38 ` David Gibson
2002-12-05 3:13 ` James Bottomley
2002-12-05 5:05 ` David Gibson
2002-12-05 15:03 ` James Bottomley
2002-12-05 23:54 ` David Gibson
2002-12-05 3:17 ` Miles Bader
2002-12-05 6:06 ` David Gibson
2002-12-05 6:43 ` Miles Bader
2002-12-05 23:44 ` David Gibson
2002-12-06 2:23 ` Miles Bader
2002-12-05 3:41 ` Jeff Garzik
2002-12-05 6:04 ` David Gibson
2002-12-05 16:29 ` Jeff Garzik
2002-12-05 23:59 ` David Gibson
2002-12-05 11:08 ` Benjamin Herrenschmidt
2002-12-05 11:35 ` Russell King
2002-12-05 15:24 ` James Bottomley
2002-12-06 0:01 ` David Gibson
-- strict thread matches above, loose matches on Subject: below --
2002-12-18 3:01 [RFT][PATCH] " James Bottomley
2002-12-18 3:13 ` David Mosberger
2002-12-28 18:14 ` Russell King
2002-12-28 18:19 ` James Bottomley
2002-12-07 14:37 [RFC] " Adam J. Richter
2002-12-07 4:12 Adam J. Richter
2002-12-06 22:52 Adam J. Richter
2002-12-06 22:17 Adam J. Richter
2002-12-06 22:26 ` James Bottomley
2002-12-06 22:29 ` David S. Miller
2002-12-06 22:48 ` James Bottomley
2002-12-06 22:49 ` David S. Miller
2002-12-06 22:32 ` Arjan van de Ven
2002-12-06 17:39 Adam J. Richter
2002-12-06 18:07 ` Matthew Wilcox
2002-12-06 17:07 Adam J. Richter
2002-12-06 16:48 James Bottomley
2002-12-06 16:19 Adam J. Richter
2002-12-06 16:40 ` Matthew Wilcox
2002-12-06 18:17 ` David S. Miller
2002-12-06 18:29 ` James Bottomley
2002-12-06 18:31 ` David S. Miller
2002-12-06 18:40 ` James Bottomley
2002-12-06 18:42 ` David S. Miller
2002-12-06 21:04 ` Oliver Xymoron
2002-12-07 10:19 ` David Gibson
2002-12-06 18:36 ` Matthew Wilcox
2002-12-06 18:38 ` David S. Miller
2002-12-06 7:41 Adam J. Richter
2002-12-06 15:50 ` David S. Miller
2002-12-06 7:14 Adam J. Richter
2002-12-06 16:26 ` James Bottomley
2002-12-06 17:48 ` Miles Bader
2002-12-07 9:56 ` David Gibson
2002-12-07 9:45 ` David Gibson
2002-12-07 11:26 ` Russell King
2002-12-08 5:28 ` David Gibson
2002-12-06 6:15 David Brownell
2002-12-06 2:08 Adam J. Richter
2002-12-06 2:53 ` David Gibson
2002-12-06 4:03 ` David S. Miller
2002-12-05 20:27 Adam J. Richter
2002-12-05 17:49 Manfred Spraul
2002-12-06 0:08 ` David Gibson
2002-12-05 12:21 Adam J. Richter
2002-12-05 12:44 ` Russell King
2002-12-05 12:13 Adam J. Richter
2002-12-05 11:57 Adam J. Richter
2002-12-06 0:06 ` David Gibson
2002-12-05 5:20 Adam J. Richter
2002-12-05 3:02 Adam J. Richter
2002-12-05 6:15 ` David Gibson
2002-12-05 1:21 Adam J. Richter
2002-12-05 2:40 ` David Gibson
2002-12-05 2:49 ` Miles Bader
2002-12-05 6:12 ` David Gibson
2002-12-05 0:43 Adam J. Richter
2002-12-05 0:55 ` Jeff Garzik
2002-12-05 2:02 ` James Bottomley
2002-11-09 4:51 [parisc-linux] Untested port of parisc_device to generic device interface Adam J. Richter
2002-11-09 5:21 ` Matthew Wilcox
2002-11-09 6:03 ` Greg KH
2002-11-09 15:33 ` J.E.J. Bottomley
2002-11-13 6:13 ` Greg KH
2002-11-13 7:46 ` Miles Bader
2002-11-13 7:52 ` Greg KH
2002-11-13 8:02 ` Miles Bader
2002-11-13 8:10 ` Greg KH
2002-11-13 8:26 ` Miles Bader
2002-11-13 8:25 ` Greg KH
2002-11-13 9:05 ` Miles Bader
[not found] ` <miles@lsi.nec.co.jp>
2002-11-13 20:13 ` Grant Grundler
2002-11-13 20:21 ` J.E.J. Bottomley
2002-11-13 20:37 ` Grant Grundler
2002-11-13 11:59 ` Ivan Kokshaysky
2002-11-13 12:36 ` Marc Zyngier
2002-11-13 16:32 ` Bjorn Helgaas
2002-11-13 17:23 ` J.E.J. Bottomley
2002-11-13 20:33 ` Grant Grundler
2002-11-13 20:44 ` J.E.J. Bottomley
2002-11-13 21:42 ` Grant Grundler
2002-11-13 20:12 ` Grant Grundler
2002-11-09 7:58 ` Marc Zyngier
2002-11-09 18:04 ` Grant Grundler
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