On Wed, 6 Jul 2011, Russell King - ARM Linux wrote:
they typically don't fall into the highmem zone. As the dmabounce
code allocates from the DMA coherent allocator to provide it with
guaranteed DMA-able memory, that would be rather inconvenient.
True. The dmabounce code would
On Wed, 6 Jul 2011, Michal Nazarewicz wrote:
On Wed, 06 Jul 2011 18:05:00 +0200, Christoph Lameter c...@linux.com wrote:
ZONE_DMA is a zone for memory of legacy (crippled) devices that cannot DMA
into all of memory (and so is ZONE_DMA32). Memory from ZONE_NORMAL
can be used for DMA
On Wed, 6 Jul 2011, Russell King - ARM Linux wrote:
So, ARM is no different from x86, with the exception that the 16MB DMA
zone due to ISA ends up being different sizes on ARM depending on our
restrictions.
Sounds good. Thank you.
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