> > $ git grep drm_gem_shmem_mmap > > > > We also need correct access from userspace, otherwise the gpu is going to > > be sad. > > I've been thinking about this, and I think it means that we can never > have cached mappings anywhere. Even if shmem supports it internally for > most drivers, as soon as the page are exported, the importer could > expect uncached memory.
The importer should not expect anything but call dma-buf ops so the exporter has a chance to handle this correctly. (Yes, we don't get this right everywhere, some drivers take the dma-bufs list of pages and do their own thing ...). take care, Gerd _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
