On Wed, Aug 1, 2018 at 2:32 AM, Christian König <christian.koenig at amd.com> wrote: > Am 01.08.2018 um 00:07 schrieb Marek Olšák: >> >> Can this be implemented as a wrapper on top of libdrm? So that the >> tree (or hash table) isn't created for UMDs that don't need it. > > > No, the problem is that an application gets a CPU pointer from one API and > tries to import that pointer into another one. > > In other words we need to implement this independent of the UMD who mapped > the BO. Yeah, it could be an optional feature of libdrm, and other components should be able to disable it to remove the overhead. Marek
