linux-kernel - Re: [PATCH v2] dma-mapping: Provide write-combine allocations

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Message-ID: <20140821132433.GC19293@ulmo.nvidia.com>
Date:	Thu, 21 Aug 2014 15:24:35 +0200
From:	Thierry Reding <thierry.reding@...il.com>
To:	Marek Szyprowski <m.szyprowski@...sung.com>
Cc:	Russell King - ARM Linux <linux@....linux.org.uk>,
	Arnd Bergmann <arnd@...db.de>, linaro-mm-sig@...ts.linaro.org,
	linux-arm-kernel@...ts.infradead.org, linux-arch@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] dma-mapping: Provide write-combine allocations

On Thu, Aug 21, 2014 at 12:38:48PM +0200, Marek Szyprowski wrote:
> Hello,
> 
> On 2014-08-01 17:19, Russell King - ARM Linux wrote:
> >On Fri, Aug 01, 2014 at 02:40:59PM +0200, Thierry Reding wrote:
> >>On Fri, Jun 27, 2014 at 11:56:58AM +0200, Thierry Reding wrote:
> >>>From: Thierry Reding <treding@...dia.com>
> >>>
> >>>Provide an implementation for dma_{alloc,free,mmap}_writecombine() when
> >>>the architecture supports DMA attributes.
> >>>
> >>>Signed-off-by: Thierry Reding <treding@...dia.com>
> >>>---
> >>>Changes in v2:
> >>>- Add a generic dma_mmap_writecombine() function
> >>>
> >>>  arch/arm/include/asm/dma-mapping.h       | 16 ----------------
> >>>  include/asm-generic/dma-mapping-common.h |  8 --------
> >>>  include/linux/dma-mapping.h              | 26 ++++++++++++++++++++++++++
> >>>  3 files changed, 26 insertions(+), 24 deletions(-)
> >>Ping?
> >I have no problem with this, but I don't think I can say yes to it; that
> >depends whether other people are happy for this to live in
> >include/linux/dma-mapping.h.
> >
> >I guess consent for this change can only come by no one objecting to it
> >after several postings.
> 
> I will take this patch my dma-mapping-next tree and later send pull request
> to Linus, so it will be handled in a similar way as all other changes to
> generic dma-mapping subsystem done in last 2 years.

Okay, thanks.

Thierry

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