On Wed, 2011-08-17 at 15:06 +0200, Marek Szyprowski wrote:
[...]
Maybe for the first version a static pool with reasonably small size
(like 128KiB) will be more than enough? This size can be even board
depended or changed with kernel command line for systems that really
needs more
Hello,
On Tuesday, August 16, 2011 4:26 PM Arnd Bergmann wrote:
On Tuesday 16 August 2011, Russell King - ARM Linux wrote:
On Tue, Aug 16, 2011 at 03:28:48PM +0200, Arnd Bergmann wrote:
Hmm, I don't remember the point about dynamically sizing the pool for
ARMv6K, but that can well be an
On Wednesday 17 August 2011, Marek Szyprowski wrote:
Do we really need the dynamic pool for the first version? I would like to
know how much memory can be allocated in GFP_ATOMIC context. What are the
typical sizes of such allocations?
I think this highly depends on the board and on the use
Hello,
On Wednesday, August 17, 2011 10:01 AM Marek Szyprowski wrote:
On Tuesday, August 16, 2011 4:26 PM Arnd Bergmann wrote:
On Tuesday 16 August 2011, Russell King - ARM Linux wrote:
On Tue, Aug 16, 2011 at 03:28:48PM +0200, Arnd Bergmann wrote:
Hmm, I don't remember the point about
Hello,
On Wednesday, August 17, 2011 2:29 PM Arnd Bergmann wrote:
On Wednesday 17 August 2011, Marek Szyprowski wrote:
Do we really need the dynamic pool for the first version? I would like to
know how much memory can be allocated in GFP_ATOMIC context. What are the
typical sizes of such
Hello,
On Friday, August 12, 2011 2:53 PM Arnd Bergmann wrote:
On Friday 12 August 2011, Marek Szyprowski wrote:
From: Russell King rmk+ker...@arm.linux.org.uk
Steal memory from the kernel to provide coherent DMA memory to drivers.
This avoids the problem with multiple mappings with
On Sunday 14 August 2011, Russell King - ARM Linux wrote:
On Fri, Aug 12, 2011 at 02:53:05PM +0200, Arnd Bergmann wrote:
I thought that our discussion ended with the plan to use this only
for ARMv6+ (which has a problem with double mapping) but not on ARMv5
and below (which don't have
On Tue, Aug 16, 2011 at 03:28:48PM +0200, Arnd Bergmann wrote:
On Sunday 14 August 2011, Russell King - ARM Linux wrote:
On Fri, Aug 12, 2011 at 02:53:05PM +0200, Arnd Bergmann wrote:
I thought that our discussion ended with the plan to use this only
for ARMv6+ (which has a problem
On Tuesday 16 August 2011, Russell King - ARM Linux wrote:
On Tue, Aug 16, 2011 at 03:28:48PM +0200, Arnd Bergmann wrote:
Hmm, I don't remember the point about dynamically sizing the pool for
ARMv6K, but that can well be an oversight on my part. I do remember the
part about taking that
On Fri, Aug 12, 2011 at 02:53:05PM +0200, Arnd Bergmann wrote:
On Friday 12 August 2011, Marek Szyprowski wrote:
From: Russell King rmk+ker...@arm.linux.org.uk
Steal memory from the kernel to provide coherent DMA memory to drivers.
This avoids the problem with multiple mappings with
On Friday 12 August 2011, Marek Szyprowski wrote:
From: Russell King rmk+ker...@arm.linux.org.uk
Steal memory from the kernel to provide coherent DMA memory to drivers.
This avoids the problem with multiple mappings with differing attributes
on later CPUs.
Signed-off-by: Russell King
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