- NvBuffer replaced with NvMap, which only manages the creation of
raw nvmap objects. Users must map these objects manually to
address spaces.
- nvAddressSpaceBindToChannel removed.
- nvChannelSetNvmapFd is now automatic and has been removed.
- Nv3DContext, NvCmdList, NvErrorNotifier, NvGpfifo, NvGpu and
NvZcullContext have all been removed.
- Introduced NvGpuChannel, which provides all functionality that was
part of said removed objects.
- Other miscellaneous changes and fixes.
