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      1 /* $NetBSD: bus_user.h,v 1.3 2019/09/23 16:17:54 skrll Exp $ */
      2 /*
      3  * XXX This file is a stopgap intended to keep NetBSD/alpha buildable
      4  * XXX while developers figure out whether/how to expose to userland
      5  * XXX the bus_space(9) and pci(9) facilities used by libalpha (which
      6  * XXX is used by X11).
      7  * XXX
      8  * XXX Do NOT add new definitions to this file.
      9  */
     10 #ifndef _ALPHA_BUS_USER_H_
     11 #define _ALPHA_BUS_USER_H_
     12 
     13 #include <sys/types.h>
     14 
     15 /*
     16  * Addresses (in bus space).
     17  */
     18 typedef u_long bus_addr_t;
     19 typedef u_long bus_size_t;
     20 
     21 #define PRIxBUSADDR	"lx"
     22 #define PRIxBUSSIZE	"lx"
     23 #define PRIuBUSSIZE	"lu"
     24 
     25 /*
     26  * Translation of an Alpha bus address; INTERNAL USE ONLY.
     27  */
     28 struct alpha_bus_space_translation {
     29 	bus_addr_t	abst_bus_start;	/* start of bus window */
     30 	bus_addr_t	abst_bus_end;	/* end of bus window */
     31 	__paddr_t	abst_sys_start;	/* start of sysBus window */
     32 	__paddr_t	abst_sys_end;	/* end of sysBus window */
     33 	int		abst_addr_shift;/* address shift */
     34 	int		abst_size_shift;/* size shift */
     35 	int		abst_flags;	/* flags; see below */
     36 };
     37 
     38 #define	ABST_BWX		0x01	/* use BWX to access the bus */
     39 #define	ABST_DENSE		0x02	/* space is dense */
     40 
     41 #define	BUS_SPACE_MAP_LINEAR		0x02
     42 #define	BUS_SPACE_MAP_PREFETCHABLE     	0x04
     43 
     44 #endif /* _ALPHA_BUS_USER_H_ */
     45