On Saturday, May 23, 2020 5:44 PM, Mauro Rossi <issor.oruam@xxxxxxxxx> wrote: > OpenByFB is introduced to overcome GPU driver loading order issue > on a device with multiple GPUs, e.g. Intel iGPU and Nvidia dGPU > where the first drmfb kernel module loaded will become device file > /dev/dri/card0 and the second will become /dev/dri/card1 > > The use case is to prefer Intel iGPU over dGPU, or viceversa, > in a deterministic and reliable manner. > > OpenByFB function opens the DRM device with specified fb and node type, > thus enabling gralloc to open the correct device node of the primary fb, > regardless of the GPU driver loading order. "FB" is ambiguous here, because the other FB functions in this file refer to DRM frame-buffer objects (as opposed to fbdev I believe?). _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
