1 /* savax.h 4.3 82/07/15 */ 2 3 /* 4 * Standalone definitions peculiar to vaxen 5 * The mba devices in the standalone system are addressed as 6 * xx(unit,section) 7 * where unit is 8 * 8*mbanum+drive 9 * The mbadrv macro gives the address of the device registers 10 * for the specified unit; the mbamba macro gives the address of the 11 * mba registers themselves. 12 * 13 * The uba devices are also addressed by giving, as unit, 14 * 8*ubanum+drive 15 * The ubamem macro converts a specified unibus address (ala pdp-11) 16 * into a unibus memory address space address. 17 */ 18 19 int cpu; /* see <sys/cpu.h> */ 20 21 #define MAXNMBA 4 22 struct mba_regs **mbaddr; 23 int mbaact; 24 caddr_t *umaddr; 25 struct uba_regs **ubaddr; 26 27 #define UNITTOMBA(unit) ((unit)>>3) 28 #define UNITTODRIVE(unit) ((unit)&07) 29 30 #define mbamba(unit) (mbaddr[UNITTOMBA(unit)]) 31 #define mbadrv(unit) (&mbamba(unit)->mba_drv[UNITTODRIVE(unit)]) 32 33 #define UNITTOUBA(unit) ((unit)>>3) 34 #define ubauba(unit) (ubaddr[UNITTOUBA(unit)]) 35 #define ubamem(unit, off) ((umaddr[UNITTOUBA(unit)]+ubdevreg(off))) 36