Nouveau With Linux 5.12 Has ~5k L.O.C. Change In Preparing For Ampere

With Linux 5.11 there is open-source Nouveau KMS support for Ampere GPUs -- just kernel mode-setting without any form of 3D acceleration. The actual hardware acceleration requires more work and also NVIDIA to release the necessary signed firmware binaries. With Linux 5.12 there still is no 3D acceleration but a big set of patches was merged as a step in that direction...