On Fri, 28 Jul 2023 13:31:36 +0200 Maxime Ripard <mripard@xxxxxxxxxx> wrote: > Hi Danilo, > > On Thu, Jul 20, 2023 at 02:14:22AM +0200, Danilo Krummrich wrote: > > Add infrastructure to keep track of GPU virtual address (VA) mappings > > with a decicated VA space manager implementation. > > > > New UAPIs, motivated by Vulkan sparse memory bindings graphics drivers > > start implementing, allow userspace applications to request multiple and > > arbitrary GPU VA mappings of buffer objects. The DRM GPU VA manager is > > intended to serve the following purposes in this context. > > > > 1) Provide infrastructure to track GPU VA allocations and mappings, > > making using an interval tree (RB-tree). > > > > 2) Generically connect GPU VA mappings to their backing buffers, in > > particular DRM GEM objects. > > > > 3) Provide a common implementation to perform more complex mapping > > operations on the GPU VA space. In particular splitting and merging > > of GPU VA mappings, e.g. for intersecting mapping requests or partial > > unmap requests. > > > > Acked-by: Thomas Hellström <thomas.hellstrom@xxxxxxxxxxxxxxx> > > Acked-by: Matthew Brost <matthew.brost@xxxxxxxxx> > > Reviewed-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx> > > Tested-by: Matthew Brost <matthew.brost@xxxxxxxxx> > > Tested-by: Donald Robson <donald.robson@xxxxxxxxxx> > > Suggested-by: Dave Airlie <airlied@xxxxxxxxxx> > > Signed-off-by: Danilo Krummrich <dakr@xxxxxxxxxx> > > For some reason this breaks the drm_exec kunit patches: Fix available here [1]. [1]https://lore.kernel.org/dri-devel/cbf4ccf9-8131-27a0-332c-6942866340d1@xxxxxxxxxx/T/#t
