On Wed, Nov 02, 2016 at 03:19:43PM +0300, Alexey Brodkin wrote:
> diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
> index 20afc65e22dc..034ec6a8a764 100644
> --- a/arch/arc/mm/dma.c
> +++ b/arch/arc/mm/dma.c
> @@ -105,6 +105,31 @@ static void arc_dma_free(struct device *dev, size_t
> size, void
Hi Daniel, David,
On Mon, 2016-10-24 at 18:33 +, Alexey Brodkin wrote:
> Hi Daniel,
>
> >
> > -Original Message-
> > From: linux-snps-arc [mailto:linux-snps-arc-boun...@lists.infradead.org] On
> > Behalf Of Alexey Brodkin
> > Sent: 19 октября 2016 г. 12:33
> > To: dri-de...@lists.fr
We used to use generic implementation of dma_map_ops.mmap which is
dma_common_mmap() but that only worked for simpler cached mappings when
vaddr = paddr.
If a driver requests uncached DMA buffer kernel maps it to virtual
address so that MMU gets involved and page uncached status takes into
account
Hi Andy,
Could you possibly tell me your ideas about these changes?
Thanks.
On Fri, 2016-10-28 at 18:59 +0300, Eugeniy Paltsev wrote:
> This series is to address a proposal by Andy in these threads:
> http://www.spinics.net/lists/dmaengine/msg11506.html
> http://www.spinics.net/lists/dmaengine/msg
