From: Richard Curnow <Richard.Curnow@superh.com>
To: LKML <linux-kernel@vger.kernel.org>
Subject: Re: can device drivers return non-ram via vm_ops->nopage?
Date: Mon, 22 Mar 2004 18:23:28 +0000 [thread overview]
Message-ID: <20040322182328.GH17627@malvern.uk.w2k.superh.com> (raw)
In-Reply-To: <1079930812.900.180.camel@gaston>
* Benjamin Herrenschmidt <benh@kernel.crashing.org> [2004-03-22]:
> DRI suffers from similar issue when using PCI GART, but then, it also
> doesn't use the consistent alloc routines, it gets pages with GFP,
> mmap those into userland, and does pci_map_single in the kernel on
> each individual page to obtain the bus addresses. This will not be
> pretty on non-coherent architectures though.
... or on platforms where PCI bounce-buffers are being used.
--
Richard \\\ SH-4/SH-5 Core & Debug Architect
Curnow \\\ SuperH (UK) Ltd, Bristol
next prev parent reply other threads:[~2004-03-22 18:23 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-20 13:30 Andrea Arcangeli
2004-03-20 14:40 ` William Lee Irwin III
2004-03-20 15:06 ` Andrea Arcangeli
2004-03-20 15:27 ` William Lee Irwin III
2004-03-20 15:44 ` Russell King
2004-03-20 15:57 ` Andrea Arcangeli
2004-03-20 16:15 ` Russell King
2004-03-20 16:25 ` Andrea Arcangeli
2004-03-20 16:57 ` William Lee Irwin III
2004-03-20 17:48 ` Andrea Arcangeli
2004-03-20 19:03 ` Andrea Arcangeli
2004-03-20 15:58 ` Jaroslav Kysela
2004-03-20 16:09 ` Russell King
2004-03-20 19:44 ` Jaroslav Kysela
2004-03-20 22:23 ` Russell King
2004-03-20 22:45 ` William Lee Irwin III
2004-03-20 23:54 ` Russell King
2004-03-21 0:22 ` Zwane Mwaikambo
2004-03-22 4:46 ` Benjamin Herrenschmidt
2004-03-22 18:23 ` Richard Curnow [this message]
2004-03-21 0:23 ` William Lee Irwin III
2004-03-21 9:52 ` Arjan van de Ven
2004-03-21 10:39 ` Jaroslav Kysela
2004-03-22 4:43 ` Benjamin Herrenschmidt
2004-03-20 20:13 ` Andrew Morton
2004-03-20 20:28 ` Andrea Arcangeli
2004-03-20 20:50 ` William Lee Irwin III
2004-03-20 22:26 ` Russell King
2004-03-20 22:45 ` William Lee Irwin III
2004-03-21 20:45 ` David Woodhouse
2004-03-21 20:49 ` Christoph Hellwig
2004-03-21 20:57 ` David Woodhouse
2004-03-21 21:53 ` Linus Torvalds
2004-03-21 22:17 ` Jeff Garzik
2004-03-21 22:23 ` David Woodhouse
2004-03-21 22:23 ` Russell King
2004-03-21 22:34 ` Jeff Garzik
2004-03-21 22:42 ` David Woodhouse
2004-03-21 23:06 ` Jeff Garzik
2004-03-21 22:51 ` Russell King
2004-03-21 23:09 ` Jeff Garzik
2004-03-21 23:11 ` Linus Torvalds
2004-03-21 23:22 ` Jeff Garzik
2004-03-21 23:51 ` Linus Torvalds
2004-03-21 23:58 ` Russell King
2004-03-22 0:34 ` Andrea Arcangeli
2004-03-22 3:05 ` Linus Torvalds
2004-03-23 17:59 ` Andy Whitcroft
2004-03-23 17:58 ` David Woodhouse
2004-03-23 18:11 ` William Lee Irwin III
2004-03-22 0:02 ` David Woodhouse
2004-03-22 3:28 ` Linus Torvalds
2004-03-22 0:10 ` Jeff Garzik
2004-03-22 0:20 ` Russell King
2004-03-22 0:33 ` Jeff Garzik
2004-03-22 4:57 ` Benjamin Herrenschmidt
2004-03-21 23:45 ` Russell King
2004-03-22 0:23 ` William Lee Irwin III
2004-03-22 0:29 ` Jeff Garzik
2004-03-22 1:28 ` William Lee Irwin III
2004-03-22 6:36 ` William Lee Irwin III
2004-03-20 17:39 ` Linus Torvalds
2004-03-20 17:56 ` Andrea Arcangeli
2004-03-20 18:22 ` William Lee Irwin III
2004-03-21 3:13 ` Chris Wedgwood
2004-03-21 6:23 ` Christoph Hellwig
2004-03-21 7:00 ` Chris Wedgwood
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