[PATCH 0/2] ARM: dma-mapping: Fix mmap support for coherent buffers

Subash Patel subashrp at gmail.com
Mon Mar 26 07:04:28 EDT 2012


Hi Marek,

I have tested these patch series for origen board, and they mmap the 
buffers to user-space for the coherent pool. You can add:

Tested-By: Subash Patel <subashrp at gmail.com>

Regards,
Subash

On 03/23/2012 05:56 PM, Marek Szyprowski wrote:
> Hello,
>
> This patchset contains patches to fix broken mmap operation for memory
> buffers allocated from 'dma_declare_coherent' pool after applying my dma
> mapping redesign patches [1]. These issues have been reported by Subash
> Patel.
>
> [1] http://thread.gmane.org/gmane.linux.kernel.cross-arch/12819
>
> Patch summary:
>
> Marek Szyprowski (2):
>    common: add dma_mmap_from_coherent() function
>    arm: dma-mapping: use dma_mmap_from_coherent()
>
>   arch/arm/mm/dma-mapping.c          |    3 ++
>   drivers/base/dma-coherent.c        |   42 ++++++++++++++++++++++++++++++++++++
>   include/asm-generic/dma-coherent.h |    4 ++-
>   3 files changed, 48 insertions(+), 1 deletions(-)
>



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