On 07/11/16 11:25 PM, Bridgman, John wrote: >> From: dri-devel [mailto:dri-devel-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf >> Of Michel Dänzer >> Sent: Monday, November 07, 2016 2:24 AM >> On 07/11/16 03:56 AM, Sandeep wrote: >>> >>> I was wondering when DRM_AMDGPU_CIK would be turned on by default >> in >>> the upstream kernel (or is this upto individual distros?) >>> >>> Is there any work left to be done/bugs to be fixed before it can be >>> enabled by default? >> >> There are still some functional regressions, notably amdgpu doesn't support >> HDMI/DP audio yet. >> >> Also, simply enabling DRM_AMDGPU_CIK by default isn't a good solution, >> since the radeon driver also still supports the CIK devices, and there's no >> good mechanism to choose which driver gets to drive a particular GPU at >> runtime. > > Right... we would need corresponding logic to disable CIK support in radeon. > > Would we need two flags, one for each driver, or could we define a flag at > drivers/gpu/drm level which would choose between radeon and amdgpu for > CIK hardware ? Technically, there's probably nothing preventing the radeon code from using CONFIG_DRM_AMDGPU_CIK/SI as well. > Even as I type that I don't like it... so two flags I guess. It might actually be useful to have support in drivers and be able to choose one or the other at runtime. Somebody "just" needs to come up with a suitable mechanism for that choice. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
