From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Keith Packard <keithp@keithp.com>,
Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@elte.hu>,
nickpiggin@yahoo.com.au, airlied@linux.ie,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
jbarnes@virtuousgeek.org, dri-devel@lists.sf.net,
yinghai@kernel.org, Peter Anvin <hpa@zytor.com>
Subject: Re: Adding kmap_atomic_prot_pfn (was: [git pull] drm patches for 2.6.27-rc1)
Date: Fri, 24 Oct 2008 14:24:05 +1100 [thread overview]
Message-ID: <1224818645.7654.431.camel@pasglop> (raw)
In-Reply-To: <alpine.LFD.2.00.0810231934590.3287@nehalem.linux-foundation.org>
On Thu, 2008-10-23 at 19:48 -0700, Linus Torvalds wrote:
> Then, there's the issue of 64-bit, and just mapping everything there, and
> the interface to that. I liked the trivial extension to "struct resource"
> to have a "cached mapping" pointer. So if we can just make it pass
> resources around and get a page that way (and not even need kmap() on
> 64-bit architections), that would be good.
I'm not that fan of carrying a mapping with a struct resource because if
we do that we should probably also refcount the mapping, and then there
is the whole question of mappings with different attributes, etc etc...
Cheers,
Ben.
next prev parent reply other threads:[~2008-10-24 3:24 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-17 21:29 [git pull] drm patches for 2.6.27-rc1 Dave Airlie
2008-10-17 22:43 ` Linus Torvalds
2008-10-18 2:10 ` Eric Anholt
2008-10-18 2:47 ` Linus Torvalds
2008-10-18 3:49 ` Keith Packard
2008-10-18 6:44 ` Corbin Simpson
2008-10-18 7:49 ` Eric Anholt
2008-10-19 17:52 ` Peter Zijlstra
2008-10-20 4:17 ` Steven J Newbury
2008-10-20 16:31 ` Linus Torvalds
2008-10-20 20:04 ` Jesse Barnes
2008-10-18 9:11 ` Dave Airlie
2008-10-18 1:37 ` Nick Piggin
2008-10-18 19:11 ` Keith Packard
2008-10-18 19:31 ` Linus Torvalds
2008-10-18 20:07 ` Thomas Hellström
2008-10-18 20:20 ` Keith Packard
2008-10-18 20:37 ` Ingo Molnar
2008-10-18 21:51 ` Keith Packard
2008-10-18 22:32 ` Ingo Molnar
2008-10-18 22:47 ` Jon Smirl
2008-10-18 22:53 ` Linus Torvalds
2008-10-19 0:38 ` Keith Packard
2008-10-19 1:06 ` Arjan van de Ven
2008-10-19 1:15 ` Keith Packard
2008-10-20 10:01 ` Ingo Molnar
2008-10-19 4:14 ` Keith Packard
2008-10-19 6:41 ` Keith Packard
2008-10-19 17:53 ` io resources and cached mappings (was: [git pull] drm patches for 2.6.27-rc1) Ingo Molnar
2008-10-19 18:00 ` Arjan van de Ven
2008-10-19 19:07 ` Eric Anholt
2008-10-20 11:55 ` Ingo Molnar
2008-10-20 12:20 ` Ingo Molnar
2008-10-19 21:04 ` Keith Packard
2008-10-20 11:58 ` Ingo Molnar
2008-10-20 15:49 ` Keith Packard
2008-10-22 9:36 ` Ingo Molnar
2008-10-23 7:14 ` Keith Packard
2008-10-23 7:14 ` [PATCH] Add io-mapping functions to dynamically map large device apertures Keith Packard
2008-10-23 7:14 ` [PATCH] [drm/i915] Use io-mapping interfaces instead of a variety of mapping kludges Keith Packard
2008-10-24 4:49 ` [PATCH] Add io-mapping functions to dynamically map large device apertures Randy Dunlap
2008-10-24 6:26 ` Keith Packard
2008-10-23 8:05 ` io resources and cached mappings (was: [git pull] drm patches for 2.6.27-rc1) Ingo Molnar
2008-10-23 15:39 ` Keith Packard
2008-11-03 7:00 ` Dave Airlie
2008-11-03 10:48 ` Ingo Molnar
2008-11-03 16:36 ` Linus Torvalds
2008-11-03 16:53 ` Ingo Molnar
2008-11-03 17:29 ` [git pull] IO mappings, #2 Ingo Molnar
2008-11-04 22:36 ` Jonathan Corbet
2008-11-05 9:01 ` Ingo Molnar
2008-10-23 20:22 ` Adding kmap_atomic_prot_pfn (was: [git pull] drm patches for 2.6.27-rc1) Keith Packard
2008-10-23 20:38 ` Andrew Morton
2008-10-23 21:03 ` Keith Packard
2008-10-23 21:24 ` Linus Torvalds
2008-10-24 1:50 ` Keith Packard
2008-10-24 2:48 ` Linus Torvalds
2008-10-24 3:24 ` Benjamin Herrenschmidt [this message]
2008-10-24 5:37 ` Keith Packard
2008-10-24 14:53 ` Linus Torvalds
2008-10-24 15:45 ` Keith Packard
2008-10-24 4:29 ` Keith Packard
2008-10-24 6:22 ` Keith Packard
2008-10-24 7:33 ` Adding kmap_atomic_prot_pfn Thomas Hellström
2008-10-24 8:38 ` Ingo Molnar
2008-10-24 9:19 ` Thomas Hellström
2008-10-24 9:32 ` Ingo Molnar
2008-10-24 11:04 ` Thomas Hellström
2008-10-24 15:48 ` Keith Packard
2008-10-24 10:18 ` Thomas Hellström
2008-10-24 9:14 ` Adding kmap_atomic_prot_pfn (was: [git pull] drm patches for 2.6.27-rc1) Ingo Molnar
2008-10-24 3:21 ` Benjamin Herrenschmidt
2008-10-20 10:10 ` io resources and cached mappings " Ingo Molnar
2008-10-19 4:28 ` [git pull] drm patches for 2.6.27-rc1 Yinghai Lu
2008-10-19 3:14 ` Nick Piggin
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