Hi Laurent,
I really have no idea how this problem should be addressed. I've already
proposed
to handle it in videobuf2-dc, but this has been rejected. Maybe the only
way will
be to add dma_set_max_seg_size(isp->dev, DMA_BIT_MASK(32)) to every v4l2
driver,
which use videobuf2-dc and add a che
Hi Laurent,
On 09/11/15 14:18, Laurent Pinchart wrote:
Hello everybody,
Ping ?
Apologies, I did start writing a response a while ago, but it ended up
getting subsumed into the bigger DMA API discussion thread.
On Tuesday 13 October 2015 16:18:36 Laurent Pinchart wrote:
The maximum DMA se
Hello everybody,
Ping ?
On Tuesday 13 October 2015 16:18:36 Laurent Pinchart wrote:
> The maximum DMA segment size controls the IOMMU mapping granularity. Its
> default value is 64kB, resulting in potentially non-contiguous IOMMU
> mappings. Configure it to 4GB to ensure that buffers get mapped
>
The maximum DMA segment size controls the IOMMU mapping granularity. Its
default value is 64kB, resulting in potentially non-contiguous IOMMU
mappings. Configure it to 4GB to ensure that buffers get mapped
contiguously.
Signed-off-by: Laurent Pinchart
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drivers/media/platform/omap3isp/isp.c |
