On Wed, 30 Jun 2010 19:20:59 -0500
Fernando Guzman Lugo x0095...@ti.com wrote:
due to a restriction in scatter gather lists, it can
not be created a list for a buffer bigger than 1MB.
This patch is spliting big mappings into 1MB mappings.
I don't read the whole thread but the above
On Thu, 26 Aug 2010 07:38:26 -0500
Guzman Lugo, Fernando fernando.l...@ti.com wrote:
due to a restriction in scatter gather lists, it can
not be created a list for a buffer bigger than 1MB.
This patch is spliting big mappings into 1MB mappings.
I don't read the whole thread but the above
On Thu, 26 Aug 2010 08:16:24 -0500
Guzman Lugo, Fernando fernando.l...@ti.com wrote:
From a quick look, arch/arm/plat-omap/iovmm.c does nothing wrong about
scatter gather chaining. arm/arm/mm/dma-mapping.c looks fine too about
it. Maybe just defining ARCH_HAS_SG_CHAIN works?
I can try, but
On Wed, 21 Jul 2010 21:30:34 -0700
Zach Pfeffer zpfef...@codeaurora.org wrote:
On Wed, Jul 21, 2010 at 10:44:37AM +0900, FUJITA Tomonori wrote:
On Tue, 20 Jul 2010 15:20:01 -0700
Zach Pfeffer zpfef...@codeaurora.org wrote:
I'm not saying that it's reasonable to pass (or even allocate
On Wed, 21 Jul 2010 20:50:26 -0700
Zach Pfeffer zpfef...@codeaurora.org wrote:
On Wed, Jul 14, 2010 at 10:59:43AM +0900, FUJITA Tomonori wrote:
On Tue, 13 Jul 2010 10:02:23 +0100
Zach Pfeffer said this new VCM infrastructure can be useful for
video4linux. However, I don't think we need
On Wed, 14 Jul 2010 13:11:49 -0700
Zach Pfeffer zpfef...@codeaurora.org wrote:
On Wed, Jul 14, 2010 at 10:59:38AM +0900, FUJITA Tomonori wrote:
On Tue, 13 Jul 2010 05:14:21 -0700
Zach Pfeffer zpfef...@codeaurora.org wrote:
You mean that you want to specify this alignment attribute
On Mon, 12 Jul 2010 22:46:59 -0700
Zach Pfeffer zpfef...@codeaurora.org wrote:
Joerg Roedel wrote:
On Fri, Jul 02, 2010 at 12:33:51AM -0700, Zach Pfeffer wrote:
Daniel Walker wrote:
So if we include this code which map implementations could you
collapse into this implementations ?
On Mon, 12 Jul 2010 22:57:06 -0700
Zach Pfeffer zpfef...@codeaurora.org wrote:
FUJITA Tomonori wrote:
On Thu, 08 Jul 2010 16:59:52 -0700
Zach Pfeffer zpfef...@codeaurora.org wrote:
The problem I'm trying to solve boils down to this: map a set of
contiguous physical buffers
On Tue, 13 Jul 2010 09:20:12 +0100
Alan Cox a...@lxorguk.ukuu.org.uk wrote:
Why video4linux can't use the DMA API? Doing DMA with vmalloc'ed
buffers is a thing that we should avoid (there are some exceptions
like xfs though).
Vmalloc is about the only API for creating virtually linear
On Tue, 13 Jul 2010 09:42:44 +0100
Alan Cox a...@lxorguk.ukuu.org.uk wrote:
On Tue, 13 Jul 2010 17:30:43 +0900
FUJITA Tomonori fujita.tomon...@lab.ntt.co.jp wrote:
On Tue, 13 Jul 2010 09:20:12 +0100
Alan Cox a...@lxorguk.ukuu.org.uk wrote:
Why video4linux can't use the DMA API
On Tue, 13 Jul 2010 05:14:21 -0700
Zach Pfeffer zpfef...@codeaurora.org wrote:
You mean that you want to specify this alignment attribute every time
you create an IOMMU mapping? Then you can set segment_boundary_mask
every time you create an IOMMU mapping. It's odd but it should work.
On Tue, 13 Jul 2010 10:02:23 +0100
Russell King - ARM Linux li...@arm.linux.org.uk wrote:
On Tue, Jul 13, 2010 at 05:45:39PM +0900, FUJITA Tomonori wrote:
Drivers can tell the USB layer that these are vmapped buffers? Adding
something to struct urb? I might be totally wrong since I don't
On Thu, 08 Jul 2010 16:59:52 -0700
Zach Pfeffer zpfef...@codeaurora.org wrote:
The problem I'm trying to solve boils down to this: map a set of
contiguous physical buffers to an aligned IOMMU address. I need to
allocate the set of physical buffers in a particular way: use 1 MB
contiguous
On Thu, 24 Jun 2010 23:48:50 -0700
Zach Pfeffer zpfef...@codeaurora.org wrote:
Andi Kleen wrote:
Zach Pfeffer zpfef...@codeaurora.org writes:
This patch contains the documentation for and the main header file of
the API, termed the Virtual Contiguous Memory Manager. Its use would
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