On 09/25/2017 04:44 AM, Chih-Wei Huang wrote: > Hey Robert, thank you for the reply. > > 2017-09-22 23:43 GMT+08:00 Robert Foss <robert.foss@xxxxxxxxxxxxx>: >> Hey Chih-Wei, >> On Fri, 2017-09-22 at 10:40 +0800, Chih-Wei Huang wrote: > >> The android-ia project has supported using drm_hwcomposer and an >> alternative hwcomposer, so it would think there should be no issues. > > By x86 GPUs, I meant i915(i965)/nouveau/radeon/amdgpu/virgl/vmwgfx. > Among these only virgl works with the current drm_hwcomposer. > All the others don't have a ready atomic mode-setting API to use it. > That's the problem which should be addressed I meant. Most if not all of those drivers support the atomic updates API in mainline (and have for a few releases by now). Regards, Tomeu > The android-ia doesn't support using fdo's drm_hwcomposer I think. > They use an alternative hwcomposer [1] as you said. > It looks very different than drm_hwcomposer though > both rely on the similar (or same?) atomic API. > Android-ia's kernel has also been patched to work with it. > The vanilla kernel (at least LTS 4.9) can't work with [1] > or drm_hwcomposer. > Actually [1] only works with i915(i965) but we want > a more generic hwcomposer like drm_hwcomposer. > > Please correct me if I am wrong. > > > [1]: git://github.com/01org/IA-Hardware-Composer > >>> How about the gralloc? >>> There are also several implementations >>> scattered somewhere. >>> I think it's also important to standardize it to fd.o >>> and make it work with fd.o's drm_hwcomposer. >> >> Gralloc is a different story, and the right person to ask about it is >> not me, but maybe Rob Herring. > > > _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
