ref: 9861f1a92b373a16939fd6f3c167e5dad9f253d3
dir: /sys/src/9/arm64/io.h/
enum { IRQfiq = -1, PPI = 16, SPI = 32, IRQcntvns = PPI+11, IRQuart = SPI+1, IRQpci1 = SPI+3, IRQpci2 = SPI+4, IRQpci3 = SPI+5, IRQpci4 = SPI+6, }; #define BUSUNKNOWN (-1) #define PCIWINDOW 0 #define PCIWADDR(x) (PADDR(x)+PCIWINDOW)