On 26/05/15 19:06, Martin Peres wrote: > On 26/05/2015 16:23, Alexandre Courbot wrote: >> On Sun, May 24, 2015 at 3:26 PM, Maarten Lankhorst >> <maarten@xxxxxxxxxxxxxx> wrote: >>> Op 23-05-15 om 08:45 schreef Alexandre Courbot: >>>> On Fri, May 22, 2015 at 3:23 AM, Martin Peres <martin.peres@xxxxxxx> >>>> wrote: >>>>> On 21/05/2015 11:47, Ben Skeggs wrote: >>>>>> On 21 May 2015 at 16:08, Alexandre Courbot <acourbot@xxxxxxxxxx> >>>>>> 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@xxxxxxxxxx> >>>>>> Reviewed-by: Ben Skeggs <bskeggs@xxxxxxxxxx> >>>>> 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. Precisely. It's up-to the user of nouveau_bo_new() to check for it. Search for drm_version in src/gallium/drivers/nouveau to see how we already do it for similar changes. -Emil -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
