Messages in this thread | | | Date | Sat, 10 Aug 2019 01:22:00 -0700 | From | Christoph Hellwig <> | Subject | Re: [PATCH] drm/virtio: use virtio_max_dma_size |
| |
On Thu, Aug 08, 2019 at 05:34:45PM +0200, Gerd Hoffmann wrote: > We must make sure our scatterlist segments are not too big, otherwise > we might see swiotlb failures (happens with sev, also reproducable with > swiotlb=force).
Btw, any chance I could also draft you to replace the remaining abuses of swiotlb_max_segment and swiotlb_nr_tbl in drm with proper dma level interface?
| |