Hi, > My suggestion was to use vfio device fd for this ioctl and have > dmabuf > mgr fd as member in above query_plane structure, for region type it > would be set to 0. Region type should be DRM_PLANE_TYPE_PRIMARY > Can't mmap that page to get surface information. There is no way to > synchronize between QEMU reading this mmapped region and vendor > driver > writing it. There could be race condition in these two operations. > Read > on this page should be trapped and blocking, so that surface in that > region is only updated when its asked for. Does it make sense to have a "generation" field in the plane_info struct (which gets increased each time the struct changes) ? cheers, Gerd _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
