[Linaro-mm-sig] [PATCHv2 01/14] common: dma-mapping: introduce alloc_attrs and free_attrs methods

Marek Szyprowski m.szyprowski at samsung.com
Wed Mar 28 14:38:40 UTC 2012


Hi Sergei,

On Wednesday, March 28, 2012 1:29 PM Sergei Shtylyov wrote:

> On 27-03-2012 17:42, Marek Szyprowski wrote:
> 
> > Introduce new generic alloc and free methods with attributes argument.
> 
>     The method names don't match the ones in the subject.

Right, I will reword the subject to "common: dma-mapping: introduce generic alloc()
and free() methods".

> > Existing alloc_coherent and free_coherent can be implemented on top of the
> > new calls with NULL attributes argument. Later also dma_alloc_non_coherent
> > can be implemented using DMA_ATTR_NONCOHERENT attribute as well as
> > dma_alloc_writecombine with separate DMA_ATTR_WRITECOMBINE attribute.
> 
> > This way the drivers will get more generic, platform independent way of
> > allocating dma buffers with specific parameters.
> 
> > Signed-off-by: Marek Szyprowski <m.szyprowski at samsung.com>
> > Acked-by: Kyungmin Park <kyungmin.park at samsung.com>
> > Reviewed-by: David Gibson <david at gibson.dropbear.ud.au>
> > Reviewed-by: Arnd Bergmann <arnd at arndb.de>
> 

Best regards
-- 
Marek Szyprowski
Samsung Poland R&D Center





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