/* $NetBSD: bus_user.h,v 1.3 2019/09/23 16:17:54 skrll Exp $ */
/*
 * XXX This file is a stopgap intended to keep NetBSD/alpha buildable
 * XXX while developers figure out whether/how to expose to userland
 * XXX the bus_space(9) and pci(9) facilities used by libalpha (which
 * XXX is used by X11).
 * XXX
 * XXX Do NOT add new definitions to this file.
 */
#ifndef _ALPHA_BUS_USER_H_
#define _ALPHA_BUS_USER_H_

#include <sys/types.h>

/*
 * Addresses (in bus space).
 */
typedef u_long bus_addr_t;
typedef u_long bus_size_t;

#define PRIxBUSADDR     "lx"
#define PRIxBUSSIZE     "lx"
#define PRIuBUSSIZE     "lu"

/*
 * Translation of an Alpha bus address; INTERNAL USE ONLY.
 */
struct alpha_bus_space_translation {
        bus_addr_t      abst_bus_start; /* start of bus window */
        bus_addr_t      abst_bus_end;   /* end of bus window */
        __paddr_t       abst_sys_start; /* start of sysBus window */
        __paddr_t       abst_sys_end;   /* end of sysBus window */
        int             abst_addr_shift;/* address shift */
        int             abst_size_shift;/* size shift */
        int             abst_flags;     /* flags; see below */
};

#define ABST_BWX                0x01    /* use BWX to access the bus */
#define ABST_DENSE              0x02    /* space is dense */

#define BUS_SPACE_MAP_LINEAR            0x02
#define BUS_SPACE_MAP_PREFETCHABLE      0x04

#endif /* _ALPHA_BUS_USER_H_ */