Greetings everyone, Food for thought: Would it make sense to have the madvise ioctl as generic DRM one? Looking around - i915, msm & panfrost already have one and the virtio implementation [below] seems as generic as it gets. On Mon, 14 Mar 2022 at 22:44, Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx> wrote: > +#define VIRTGPU_MADV_WILLNEED 0 > +#define VIRTGPU_MADV_DONTNEED 1 > +struct drm_virtgpu_madvise { > + __u32 bo_handle; > + __u32 retained; /* out, non-zero if BO can be used */ > + __u32 madv; > + __u32 pad; This seems to be based on panfrost/msm yet names (bo_handle vs handle), layout and documentation varies. Why is that - copy/paste is cheap :-P HTH -Emil