Am 11.05.21 um 10:50 schrieb Christoph Hellwig:
On Tue, May 11, 2021 at 09:35:20AM +0200, Christian König wrote:
We certainly going to need the drm_need_swiotlb() for userptr support
(unless we add some approach for drivers to opt out of swiotlb).
swiotlb use is driven by three things:
1) ad
On Tue, May 11, 2021 at 09:35:20AM +0200, Christian König wrote:
> We certainly going to need the drm_need_swiotlb() for userptr support
> (unless we add some approach for drivers to opt out of swiotlb).
swiotlb use is driven by three things:
1) addressing limitations of the device
2) addressi
Am 11.05.21 um 08:05 schrieb Christoph Hellwig:
Use the dma_alloc_pages allocator for the TTM pool allocator.
This allocator is a front end to the page allocator which takes the
DMA mask of the device into account, thus offering the best of both
worlds of the two existing allocator versions. Thi
Use the dma_alloc_pages allocator for the TTM pool allocator.
This allocator is a front end to the page allocator which takes the
DMA mask of the device into account, thus offering the best of both
worlds of the two existing allocator versions. This conversion also
removes the ugly layering violat
