Hi Andres, Pardon for jumping in uninvited, there's a few comments below that you might find useful. On 4 January 2017 at 01:56, Andres Rodriguez <andresx7 at gmail.com> wrote: > --- a/configure.ac > +++ b/configure.ac > @@ -20,7 +20,7 @@ > > AC_PREREQ([2.63]) > AC_INIT([libdrm], > - [2.4.74], > + [2.4.75], This part should be separate and done only as one rolls a release. Currently we have more than a dozen of people who can do that, with 3+ from the AMD team. > [https://bugs.freedesktop.org/enter_bug.cgi?product=DRI], > [libdrm]) > > diff --git a/include/drm/amdgpu_drm.h b/include/drm/amdgpu_drm.h > index d8f2497..01cf3c9 100644 > --- a/include/drm/amdgpu_drm.h > +++ b/include/drm/amdgpu_drm.h Please sync this file as described in the README, in the same directory. > > +/* Context priority level */ > +#define AMDGPU_CTX_PRIORITY_HIGH 0 > +#define AMDGPU_CTX_PRIORITY_NORMAL 1 You really want NORMAL to be 0 here, to preserve the behaviour. In other words, [sane] old userspace with new kernel will set HIGH prio, where NORMAL is used with older kernels. > + > struct drm_amdgpu_ctx_in { > /** AMDGPU_CTX_OP_* */ > uint32_t op; > /** For future use, no flags defined so far */ > uint32_t flags; > uint32_t ctx_id; > - uint32_t _pad; > + uint32_t priority; This part is a bit of meh: Namely things can go crazy in either one of these scenarios: - old kernel [validates _pad to be zero/other], new userspace feeds "invalid" value. - new kernel. old [nasty] userspace which leaves the value uninitialised. Re-using _pad is ok, just make sure things don't explode all over the place. Regards, Emil