On 26/05/2015 16:23, Alexandre Courbot wrote: > On Sun, May 24, 2015 at 3:26 PM, Maarten Lankhorst > <maarten at mblankhorst.nl> wrote: >> Op 23-05-15 om 08:45 schreef Alexandre Courbot: >>> On Fri, May 22, 2015 at 3:23 AM, Martin Peres <martin.peres at free.fr> >>> wrote: >>>> On 21/05/2015 11:47, Ben Skeggs wrote: >>>>> On 21 May 2015 at 16:08, Alexandre Courbot <acourbot at nvidia.com> wrote: >>>>>> Add a flag allowing Nouveau to specify that an object should be coherent >>>>>> at allocation time. This is required for some class of objects like >>>>>> fences which are randomly-accessed by both the CPU and GPU. This flag >>>>>> instructs the kernel driver to make sure the object remains coherent >>>>>> even on architectures for which coherency is not guaranteed by the bus. >>>>>> >>>>>> Signed-off-by: Alexandre Courbot <acourbot at nvidia.com> >>>>> Reviewed-by: Ben Skeggs <bskeggs at redhat.com> >>>> Pushed! >>> Thanks! Should we also bump the ABI version or something? >> If you mean changing libdrm_nouveau.so.2 to .so.3 no! If you mean having >> something that pkg-config can pick up that's done automatically on every drm >> release. > Sorry for not having been clear. I was talking about checking against > the driver version to ensure it supports all the features that libdrm > can throw at it. We increased the modules's version to 1.2.2 when > adding the coherent flag: > > drm/nouveau/nouveau_drm.h: > * 1.2.2: > * - add NOUVEAU_GEM_DOMAIN_COHERENT flag
That will be the job of mesa to check the DRM version, I would guess.
