On 2020-08-10 2:28 p.m., Daniel Vetter wrote: > > Ok just learned that amdgpu hat set/get_tiling, so I'm upgrading my idea > here to a very strong recommendation, i.e. please do this except if > there's and amd ddx which somehow wants to change tiling mode while a fb > exists, and expects this to propagate. > > In i915 we even disallow the set_tiling ioctl with an error if an fb > exists, just to make sure userspace behaves. Even if userspace uses > set_tiling, this way we can at least enforce the same semantics of "client > can't pull compositor over the table with a set_tiling at the wrong time" > of modifiers. FWIW, xf86-video-amdgpu doesn't have any code to set the tiling metadata, only Mesa and presumably AMD's Vulkan/OpenGL UMDs do. -- Earthling Michel Dänzer | https://redhat.com Libre software enthusiast | Mesa and X developer _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
