amdgpu: Add UAPI support for user mode queues SIGNAL and WAIT operations
These patches introduce IOCTL functions for the user queue fence synchronization and an example libdrm test case using the USERQUEUE SIGNAL and WAIT IOCTLs.
These patches introduce IOCTL functions for the user queue fence synchronization and an example libdrm test case using the USERQUEUE SIGNAL and WAIT IOCTLs.