From: "Randy.Dunlap" <rddunlap@osdl.org>
To: Ian Pratt <Ian.Pratt@cl.cam.ac.uk>
Cc: Christoph Hellwig <hch@infradead.org>,
linux-kernel@vger.kernel.org, Steven.Hand@cl.cam.ac.uk,
Christian.Limpach@cl.cam.ac.uk, Keir.Fraser@cl.cam.ac.uk,
akpm@osdl.org
Subject: Re: [4/7] Xen VMM patch set : /dev/mem io_remap_page_range for CONFIG_XEN
Date: Sat, 27 Nov 2004 08:51:59 -0800 [thread overview]
Message-ID: <41A8B0AF.8000906@osdl.org> (raw)
In-Reply-To: <E1CY1rC-0007Y2-00@mta1.cl.cam.ac.uk>
Ian Pratt wrote:
>>>>@@ -42,7 +42,12 @@ extern void tapechar_init(void);
>>>> */
>>>> static inline int uncached_access(struct file *file, unsigned long addr)
>>>
>>>Any chance you could just move uncached_access() to some asm/ header for
>>>all arches instead of making the ifdef mess even worse?
>>
>>I suppose a generic definition could go in asm-generic/iomap.h
>>with per-architecture definitions in asm/io.h. However, I think
>>it would make sense to wait until PAT support gets added and then
>>think through exactly what needs doing rather than reorganising
>>things now.
>
>
> What do people think about this? Should I stick with the current
> patch that adds another #ifdef to uncached_access, or should I
> try pulling it out into asm-generic/iomap.h with per-arch
> definitions in asm/io.h ?
>
> Is there anyone working on PAT support? It would be good to have
> their input.
Someone from NVidia has posted some PAT patches a few times.
(Terence Ripperda) There's a thread beginning here:
http://marc.theaimsgroup.com/?l=linux-kernel&m=108180930118848&w=2
--
~Randy
next prev parent reply other threads:[~2004-11-27 16:55 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-19 23:16 Xen VMM patch set - take 2 Ian Pratt
2004-11-19 23:20 ` [1/7] Xen VMM patch set : add ptep_establish_new to make va available Ian Pratt
2004-11-19 23:20 ` [2/7] Xen VMM patch set : return code for arch_free_page Ian Pratt
2004-11-30 2:28 ` Andrea Arcangeli
2004-11-19 23:21 ` [3/7] Xen VMM patch set : runtime disable of VT console Ian Pratt
2004-11-19 23:22 ` [4/7] Xen VMM patch set : /dev/mem io_remap_page_range for CONFIG_XEN Ian Pratt
2004-11-20 2:03 ` William Lee Irwin III
2004-11-20 16:31 ` Christoph Hellwig
2004-11-20 18:03 ` Ian Pratt
2004-11-27 12:39 ` Ian Pratt
2004-11-27 16:51 ` Randy.Dunlap [this message]
2004-11-30 3:08 ` Andrea Arcangeli
2004-11-30 3:14 ` David S. Miller
2004-11-30 3:38 ` William Lee Irwin III
2004-11-30 8:56 ` Ian Pratt
2004-11-30 9:04 ` Arjan van de Ven
2004-11-30 12:09 ` Ian Pratt
2004-11-30 12:14 ` Arjan van de Ven
2004-11-30 12:18 ` Arjan van de Ven
2004-11-30 13:16 ` Ian Pratt
2004-11-30 18:03 ` Andrea Arcangeli
2004-12-04 23:49 ` Ian Pratt
2004-12-05 0:40 ` Andrea Arcangeli
2004-12-05 2:47 ` William Lee Irwin III
2004-11-19 23:23 ` [5/7] Xen VMM patch set : split free_irq into teardown_irq Ian Pratt
2004-11-20 16:32 ` Christoph Hellwig
2004-11-20 19:20 ` Ian Pratt
2004-11-27 12:45 ` Ian Pratt
2004-11-19 23:25 ` [6/7] Xen VMM patch set : add alloc_skb_from_cache Ian Pratt
2004-11-20 2:11 ` James Morris
2004-11-20 6:03 ` Chris Wedgwood
2004-11-20 6:47 ` David S. Miller
2004-11-20 10:28 ` Keir Fraser
2004-11-20 10:33 ` Chris Wedgwood
2004-11-19 23:28 ` [7/7] Xen VMM patch set : handle fragemented skbs correctly in icmp_filter Ian Pratt
2004-11-25 15:46 ` Xen VMM patch set - take 2 Ian Pratt
2004-11-28 17:07 ` Rik van Riel
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