This is a patch set from Christoph Hellwig. Patch 2 has been updated by me to not remove checks for TTM coherent pool presence. Ideally, we should query TTM for this instead and I'll have a patch set intended for 5.1 so that we can do that. But I don't want to introduce cross-module API additions outside of a merge window.
Original patch set description: vmwgfx has been doing some odd checks based on DMA ops which rely on deep DMA mapping layer internals, and I think the changes in Linux 4.21 finally broke most of these implicit assumptions. The real fix is in patch 3, but I think the others are important to make it clear what is actually going on. _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
