Defined in 5 files as a macro:
- sys/arm/include/bus.h, line 267 (as a macro)
- sys/arm64/include/bus.h, line 292 (as a macro)
- sys/mips/include/bus.h, line 249 (as a macro)
- sys/powerpc/include/bus.h, line 270 (as a macro)
- sys/riscv/include/bus.h, line 268 (as a macro)