On Wed, 2 May 2018 10:06:36 +0200
Ladislav Michl wrote:
> Hi Boris,
>
> (and apologies for delay)
>
> On Fri, Apr 20, 2018 at 10:01:34PM +0200, Boris Brezillon wrote:
> > Hi Ladislav,
> >
> > On Mon, 16 Apr 2018 08:52:59 +0200
> > Ladislav Michl wrote:
> >
> > > dma_map_single doesn't get
Hi Boris,
(and apologies for delay)
On Fri, Apr 20, 2018 at 10:01:34PM +0200, Boris Brezillon wrote:
> Hi Ladislav,
>
> On Mon, 16 Apr 2018 08:52:59 +0200
> Ladislav Michl wrote:
>
> > dma_map_single doesn't get the proper DMA address for vmalloced area,
>
> That's not true, it returns the ri
Hi Ladislav,
On Mon, 16 Apr 2018 08:52:59 +0200
Ladislav Michl wrote:
> dma_map_single doesn't get the proper DMA address for vmalloced area,
That's not true, it returns the right DMA (physical) address, it's just
that:
1/ the memory location is not necessarily physically contiguous
2/ in case
Hi Péter,
On Mon, Apr 16, 2018 at 02:34:54PM +0300, Peter Ujfalusi wrote:
> On 2018-04-16 09:52, Ladislav Michl wrote:
> > dma_map_single doesn't get the proper DMA address for vmalloced area,
>
> Which is not a big surprise as vmalloc will allocate contiguous virtual
> memory (which might corres
On 2018-04-16 09:52, Ladislav Michl wrote:
> dma_map_single doesn't get the proper DMA address for vmalloced area,
Which is not a big surprise as vmalloc will allocate contiguous virtual
memory (which might corresponds to non-contiguous physical memory). Even
if you somehow get the physical addr
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