search for: map_fixed_saf

...ver code mmap's an area below (1 << 40). It's hard to avoid this, given that user space needs access to the area (for filling out command buffers and monitoring semaphores, that sort of thing). Then suballocate from there using mmap's MAP_FIXED or (future-ish) MAP_FIXED_SAFE flags. ...glancing at the other fork of this thread, I think that is exactly what Felix is saying, too. So that's good. -- The user space program sits above the user space driver, and although the program could, in theory, interfere with this mmap'd area, that wo...

On Sat, Mar 10, 2018 at 04:01:58PM +0100, Christian K??nig wrote: > Good to have an example how to use HMM with an upstream driver. > > Am 10.03.2018 um 04:21 schrieb jglisse at redhat.com: > > This patchset adds SVM (Share Virtual Memory) using HMM (Heterogeneous > > Memory Management) to the nouveau driver. SVM means that GPU threads > > spawn by GPU driver for a