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41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
/* $NetBSD: bus_user.h,v 1.1 2011/08/12 22:23:12 dyoung Exp $ */
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/*
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* XXX This file is a stopgap intended to keep NetBSD/alpha buildable
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* XXX while developers figure out whether/how to expose to userland
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* XXX the bus_space(9) and pci(9) facilities used by libalpha (which
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* XXX is used by X11).
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* XXX
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* XXX Do NOT add new definitions to this file.
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*/
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#ifndef _ALPHA_BUS_USER_H_
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#define _ALPHA_BUS_USER_H_
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#include <sys/types.h>
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/*
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* Addresses (in bus space).
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*/
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typedef u_long bus_addr_t;
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typedef u_long bus_size_t;
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/*
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* Translation of an Alpha bus address; INTERNAL USE ONLY.
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*/
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struct alpha_bus_space_translation {
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bus_addr_t abst_bus_start; /* start of bus window */
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bus_addr_t abst_bus_end; /* end of bus window */
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paddr_t abst_sys_start; /* start of sysBus window */
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paddr_t abst_sys_end; /* end of sysBus window */
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int abst_addr_shift;/* address shift */
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int abst_size_shift;/* size shift */
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int abst_flags; /* flags; see below */
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};
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#define ABST_BWX 0x01 /* use BWX to access the bus */
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#define ABST_DENSE 0x02 /* space is dense */
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#define BUS_SPACE_MAP_LINEAR 0x02
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#define BUS_SPACE_MAP_PREFETCHABLE 0x04
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#endif /* _ALPHA_BUS_USER_H_ */
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