Displaying 3 results from an estimated 3 matches for "ttm_dma_tt_alloc_page_directori".
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ttm_dma_tt_alloc_page_directory
2018 Feb 27
4
[PATCH 4/5] drm/ttm: add ttm_sg_tt_init
Hi guys,
at least on amdgpu and radeon the page array allocated by
ttm_dma_tt_init is completely unused in the case of DMA-buf sharing. So
I'm trying to get rid of that by only allocating the DMA address array.
Now the only other user of DMA-buf together with ttm_dma_tt_init is
Nouveau. So my question is are you guys using the page array anywhere in
your kernel driver in case of a
2018 Mar 05
0
[PATCH 4/5] drm/ttm: add ttm_sg_tt_init
Ping?
Am 27.02.2018 um 13:07 schrieb Christian König:
> Hi guys,
>
> at least on amdgpu and radeon the page array allocated by
> ttm_dma_tt_init is completely unused in the case of DMA-buf sharing.
> So I'm trying to get rid of that by only allocating the DMA address
> array.
>
> Now the only other user of DMA-buf together with ttm_dma_tt_init is
> Nouveau. So
2014 Jul 08
8
[PATCH v4 0/6] drm: nouveau: memory coherency on ARM
Another revision of this patchset critical for GK20A to operate.
Previous attempts were exclusively using either TTM's regular page allocator or
the DMA API one. Both have their advantages and drawbacks: the page allocator is
fast but requires explicit synchronization on non-coherent architectures,
whereas the DMA allocator always returns coherent memory, but is also slower,
creates a