1079 lines
32 KiB
C
1079 lines
32 KiB
C
/* $NetBSD: bus.h,v 1.12 2000/04/10 03:49:56 matt Exp $ */
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/*-
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* Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1996 Charles M. Hannum. All rights reserved.
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* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _VAX_BUS_H_
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#define _VAX_BUS_H_
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#ifdef BUS_SPACE_DEBUG
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#include <sys/systm.h> /* for printf() prototype */
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/*
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* Macros for sanity-checking the aligned-ness of pointers passed to
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* bus space ops. These are not strictly necessary on the VAX, but
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* could lead to performance improvements, and help catch problems
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* with drivers that would creep up on other architectures.
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*/
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#define __BUS_SPACE_ALIGNED_ADDRESS(p, t) \
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((((u_long)(p)) & (sizeof(t)-1)) == 0)
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#define __BUS_SPACE_ADDRESS_SANITY(p, t, d) \
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({ \
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if (__BUS_SPACE_ALIGNED_ADDRESS((p), t) == 0) { \
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printf("%s 0x%lx not aligned to %d bytes %s:%d\n", \
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d, (u_long)(p), sizeof(t), __FILE__, __LINE__); \
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} \
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(void) 0; \
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})
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#define BUS_SPACE_ALIGNED_POINTER(p, t) __BUS_SPACE_ALIGNED_ADDRESS(p, t)
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#else
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#define __BUS_SPACE_ADDRESS_SANITY(p,t,d) (void) 0
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#define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t)
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#endif /* BUS_SPACE_DEBUG */
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/*
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* Bus address and size types
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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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* Access methods for bus resources and address space.
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*/
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typedef struct vax_bus_space *bus_space_tag_t;
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typedef u_long bus_space_handle_t;
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struct vax_bus_space {
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/* cookie */
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void *vbs_cookie;
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/* mapping/unmapping */
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int (*vbs_map) __P((void *, bus_addr_t, bus_size_t,
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int, bus_space_handle_t *, int));
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void (*vbs_unmap) __P((void *, bus_space_handle_t,
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bus_size_t, int));
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int (*vbs_subregion) __P((void *, bus_space_handle_t,
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bus_size_t, bus_size_t, bus_space_handle_t *));
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/* allocation/deallocation */
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int (*vbs_alloc) __P((void *, bus_addr_t, bus_addr_t,
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bus_size_t, bus_size_t, bus_size_t, int,
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bus_addr_t *, bus_space_handle_t *));
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void (*vbs_free) __P((void *, bus_space_handle_t,
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bus_size_t));
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};
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/*
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* int bus_space_map __P((bus_space_tag_t t, bus_addr_t addr,
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* bus_size_t size, int flags, bus_space_handle_t *bshp));
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*
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* Map a region of bus space.
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*/
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#define BUS_SPACE_MAP_CACHEABLE 0x01
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#define BUS_SPACE_MAP_LINEAR 0x02
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#define BUS_SPACE_MAP_PREFETCHABLE 0x04
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#define bus_space_map(t, a, s, f, hp) \
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(*(t)->vbs_map)((t)->vbs_cookie, (a), (s), (f), (hp), 1)
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#define vax_bus_space_map_noacct(t, a, s, f, hp) \
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(*(t)->vbs_map)((t)->vbs_cookie, (a), (s), (f), (hp), 0)
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/*
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* int bus_space_unmap __P((bus_space_tag_t t,
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* bus_space_handle_t bsh, bus_size_t size));
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*
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* Unmap a region of bus space.
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*/
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#define bus_space_unmap(t, h, s) \
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(*(t)->vbs_unmap)((t)->vbs_cookie, (h), (s), 1)
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#define vax_bus_space_unmap_noacct(t, h, s) \
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(*(t)->vbs_unmap)((t)->vbs_cookie, (h), (s), 0)
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/*
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* int bus_space_subregion __P((bus_space_tag_t t,
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* bus_space_handle_t bsh, bus_size_t offset, bus_size_t size,
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* bus_space_handle_t *nbshp));
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*
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* Get a new handle for a subregion of an already-mapped area of bus space.
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*/
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#define bus_space_subregion(t, h, o, s, nhp) \
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(*(t)->vbs_subregion)((t)->vbs_cookie, (h), (o), (s), (nhp))
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/*
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* int bus_space_alloc __P((bus_space_tag_t t, bus_addr_t rstart,
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* bus_addr_t rend, bus_size_t size, bus_size_t align,
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* bus_size_t boundary, int flags, bus_addr_t *addrp,
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* bus_space_handle_t *bshp));
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*
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* Allocate a region of bus space.
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*/
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#define bus_space_alloc(t, rs, re, s, a, b, f, ap, hp) \
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(*(t)->vbs_alloc)((t)->vbs_cookie, (rs), (re), (s), (a), (b), \
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(f), (ap), (hp))
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/*
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* int bus_space_free __P((bus_space_tag_t t,
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* bus_space_handle_t bsh, bus_size_t size));
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*
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* Free a region of bus space.
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*/
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#define bus_space_free(t, h, s) \
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(*(t)->vbs_free)((t)->vbs_cookie, (h), (s))
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/*
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* u_intN_t bus_space_read_N __P((bus_space_tag_t tag,
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* bus_space_handle_t bsh, bus_size_t offset));
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*
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* Read a 1, 2, 4, or 8 byte quantity from bus space
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* described by tag/handle/offset.
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*/
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#define bus_space_read_1(t, h, o) \
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(*(volatile u_int8_t *)((h) + (o)))
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#define bus_space_read_2(t, h, o) \
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(__BUS_SPACE_ADDRESS_SANITY((h) + (o), u_int16_t, "bus addr"), \
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(*(volatile u_int16_t *)((h) + (o))))
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#define bus_space_read_4(t, h, o) \
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(__BUS_SPACE_ADDRESS_SANITY((h) + (o), u_int32_t, "bus addr"), \
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(*(volatile u_int32_t *)((h) + (o))))
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#if 0 /* Cause a link error for bus_space_read_8 */
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#define bus_space_read_8(t, h, o) !!! bus_space_read_8 unimplemented !!!
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#endif
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/*
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* void bus_space_read_multi_N __P((bus_space_tag_t tag,
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* bus_space_handle_t bsh, bus_size_t offset,
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* u_intN_t *addr, size_t count));
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*
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* Read `count' 1, 2, 4, or 8 byte quantities from bus space
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* described by tag/handle/offset and copy into buffer provided.
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*/
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static __inline void vax_mem_read_multi_1 __P((bus_space_tag_t,
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bus_space_handle_t, bus_size_t, u_int8_t *, size_t));
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static __inline void vax_mem_read_multi_2 __P((bus_space_tag_t,
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bus_space_handle_t, bus_size_t, u_int16_t *, size_t));
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static __inline void vax_mem_read_multi_4 __P((bus_space_tag_t,
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bus_space_handle_t, bus_size_t, u_int32_t *, size_t));
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#define bus_space_read_multi_1(t, h, o, a, c) \
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vax_mem_read_multi_1((t), (h), (o), (a), (c))
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#define bus_space_read_multi_2(t, h, o, a, c) \
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do { \
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__BUS_SPACE_ADDRESS_SANITY((a), u_int16_t, "buffer"); \
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__BUS_SPACE_ADDRESS_SANITY((h) + (o), u_int16_t, "bus addr"); \
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vax_mem_read_multi_2((t), (h), (o), (a), (c)); \
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} while (0)
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#define bus_space_read_multi_4(t, h, o, a, c) \
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do { \
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__BUS_SPACE_ADDRESS_SANITY((a), u_int32_t, "buffer"); \
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__BUS_SPACE_ADDRESS_SANITY((h) + (o), u_int32_t, "bus addr"); \
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vax_mem_read_multi_4((t), (h), (o), (a), (c)); \
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} while (0)
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#if 0 /* Cause a link error for bus_space_read_multi_8 */
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#define bus_space_read_multi_8 !!! bus_space_read_multi_8 unimplemented !!!
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#endif
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static __inline void
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vax_mem_read_multi_1(t, h, o, a, c)
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bus_space_tag_t t;
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bus_space_handle_t h;
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bus_size_t o;
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u_int8_t *a;
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size_t c;
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{
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const bus_addr_t addr = h + o;
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for (; c != 0; c--, a++)
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*a = *(volatile u_int8_t *)(addr);
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}
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static __inline void
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vax_mem_read_multi_2(t, h, o, a, c)
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bus_space_tag_t t;
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bus_space_handle_t h;
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bus_size_t o;
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u_int16_t *a;
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size_t c;
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{
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const bus_addr_t addr = h + o;
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for (; c != 0; c--, a++)
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*a = *(volatile u_int16_t *)(addr);
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}
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static __inline void
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vax_mem_read_multi_4(t, h, o, a, c)
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bus_space_tag_t t;
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bus_space_handle_t h;
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bus_size_t o;
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u_int32_t *a;
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size_t c;
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{
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const bus_addr_t addr = h + o;
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for (; c != 0; c--, a++)
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*a = *(volatile u_int32_t *)(addr);
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}
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/*
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* void bus_space_read_region_N __P((bus_space_tag_t tag,
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* bus_space_handle_t bsh, bus_size_t offset,
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* u_intN_t *addr, size_t count));
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*
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* Read `count' 1, 2, 4, or 8 byte quantities from bus space
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* described by tag/handle and starting at `offset' and copy into
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* buffer provided.
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*/
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static __inline void vax_mem_read_region_1 __P((bus_space_tag_t,
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bus_space_handle_t, bus_size_t, u_int8_t *, size_t));
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static __inline void vax_mem_read_region_2 __P((bus_space_tag_t,
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bus_space_handle_t, bus_size_t, u_int16_t *, size_t));
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static __inline void vax_mem_read_region_4 __P((bus_space_tag_t,
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bus_space_handle_t, bus_size_t, u_int32_t *, size_t));
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#define bus_space_read_region_1(t, h, o, a, c) \
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do { \
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vax_mem_read_region_1((t), (h), (o), (a), (c)); \
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} while (0)
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#define bus_space_read_region_2(t, h, o, a, c) \
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do { \
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__BUS_SPACE_ADDRESS_SANITY((a), u_int16_t, "buffer"); \
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__BUS_SPACE_ADDRESS_SANITY((h) + (o), u_int16_t, "bus addr"); \
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vax_mem_read_region_2((t), (h), (o), (a), (c)); \
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} while (0)
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#define bus_space_read_region_4(t, h, o, a, c) \
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do { \
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__BUS_SPACE_ADDRESS_SANITY((a), u_int32_t, "buffer"); \
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__BUS_SPACE_ADDRESS_SANITY((h) + (o), u_int32_t, "bus addr"); \
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vax_mem_read_region_4((t), (h), (o), (a), (c)); \
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} while (0)
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#if 0 /* Cause a link error for bus_space_read_region_8 */
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#define bus_space_read_region_8 \
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!!! bus_space_read_region_8 unimplemented !!!
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#endif
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static __inline void
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vax_mem_read_region_1(t, h, o, a, c)
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bus_space_tag_t t;
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bus_space_handle_t h;
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bus_size_t o;
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u_int8_t *a;
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size_t c;
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{
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bus_addr_t addr = h + o;
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for (; c != 0; c--, addr++, a++)
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*a = *(volatile u_int8_t *)(addr);
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}
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static __inline void
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vax_mem_read_region_2(t, h, o, a, c)
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bus_space_tag_t t;
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bus_space_handle_t h;
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bus_size_t o;
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u_int16_t *a;
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size_t c;
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{
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bus_addr_t addr = h + o;
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for (; c != 0; c--, addr++, a++)
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*a = *(volatile u_int16_t *)(addr);
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}
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static __inline void
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vax_mem_read_region_4(t, h, o, a, c)
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bus_space_tag_t t;
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bus_space_handle_t h;
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bus_size_t o;
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u_int32_t *a;
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size_t c;
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{
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bus_addr_t addr = h + o;
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for (; c != 0; c--, addr++, a++)
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*a = *(volatile u_int32_t *)(addr);
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}
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/*
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* void bus_space_write_N __P((bus_space_tag_t tag,
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* bus_space_handle_t bsh, bus_size_t offset,
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* u_intN_t value));
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*
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* Write the 1, 2, 4, or 8 byte value `value' to bus space
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* described by tag/handle/offset.
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*/
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#define bus_space_write_1(t, h, o, v) \
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do { \
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((void)(*(volatile u_int8_t *)((h) + (o)) = (v))); \
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} while (0)
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#define bus_space_write_2(t, h, o, v) \
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do { \
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__BUS_SPACE_ADDRESS_SANITY((h) + (o), u_int16_t, "bus addr"); \
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((void)(*(volatile u_int16_t *)((h) + (o)) = (v))); \
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} while (0)
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#define bus_space_write_4(t, h, o, v) \
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do { \
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__BUS_SPACE_ADDRESS_SANITY((h) + (o), u_int32_t, "bus addr"); \
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((void)(*(volatile u_int32_t *)((h) + (o)) = (v))); \
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} while (0)
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#if 0 /* Cause a link error for bus_space_write_8 */
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#define bus_space_write_8 !!! bus_space_write_8 not implemented !!!
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#endif
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/*
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* void bus_space_write_multi_N __P((bus_space_tag_t tag,
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* bus_space_handle_t bsh, bus_size_t offset,
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* const u_intN_t *addr, size_t count));
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*
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* Write `count' 1, 2, 4, or 8 byte quantities from the buffer
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* provided to bus space described by tag/handle/offset.
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*/
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static __inline void vax_mem_write_multi_1 __P((bus_space_tag_t,
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bus_space_handle_t, bus_size_t, const u_int8_t *, size_t));
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static __inline void vax_mem_write_multi_2 __P((bus_space_tag_t,
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bus_space_handle_t, bus_size_t, const u_int16_t *, size_t));
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static __inline void vax_mem_write_multi_4 __P((bus_space_tag_t,
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bus_space_handle_t, bus_size_t, const u_int32_t *, size_t));
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#define bus_space_write_multi_1(t, h, o, a, c) \
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do { \
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vax_mem_write_multi_1((t), (h), (o), (a), (c)); \
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} while (0)
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#define bus_space_write_multi_2(t, h, o, a, c) \
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do { \
|
|
__BUS_SPACE_ADDRESS_SANITY((a), u_int16_t, "buffer"); \
|
|
__BUS_SPACE_ADDRESS_SANITY((h) + (o), u_int16_t, "bus addr"); \
|
|
vax_mem_write_multi_2((t), (h), (o), (a), (c)); \
|
|
} while (0)
|
|
|
|
#define bus_space_write_multi_4(t, h, o, a, c) \
|
|
do { \
|
|
__BUS_SPACE_ADDRESS_SANITY((a), u_int32_t, "buffer"); \
|
|
__BUS_SPACE_ADDRESS_SANITY((h) + (o), u_int32_t, "bus addr"); \
|
|
vax_mem_write_multi_4((t), (h), (o), (a), (c)); \
|
|
} while (0)
|
|
|
|
#if 0 /* Cause a link error for bus_space_write_multi_8 */
|
|
#define bus_space_write_multi_8(t, h, o, a, c) \
|
|
!!! bus_space_write_multi_8 unimplemented !!!
|
|
#endif
|
|
|
|
static __inline void
|
|
vax_mem_write_multi_1(t, h, o, a, c)
|
|
bus_space_tag_t t;
|
|
bus_space_handle_t h;
|
|
bus_size_t o;
|
|
const u_int8_t *a;
|
|
size_t c;
|
|
{
|
|
const bus_addr_t addr = h + o;
|
|
|
|
for (; c != 0; c--, a++)
|
|
*(volatile u_int8_t *)(addr) = *a;
|
|
}
|
|
|
|
static __inline void
|
|
vax_mem_write_multi_2(t, h, o, a, c)
|
|
bus_space_tag_t t;
|
|
bus_space_handle_t h;
|
|
bus_size_t o;
|
|
const u_int16_t *a;
|
|
size_t c;
|
|
{
|
|
const bus_addr_t addr = h + o;
|
|
|
|
for (; c != 0; c--, a++)
|
|
*(volatile u_int16_t *)(addr) = *a;
|
|
}
|
|
|
|
static __inline void
|
|
vax_mem_write_multi_4(t, h, o, a, c)
|
|
bus_space_tag_t t;
|
|
bus_space_handle_t h;
|
|
bus_size_t o;
|
|
const u_int32_t *a;
|
|
size_t c;
|
|
{
|
|
const bus_addr_t addr = h + o;
|
|
|
|
for (; c != 0; c--, a++)
|
|
*(volatile u_int32_t *)(addr) = *a;
|
|
}
|
|
|
|
/*
|
|
* void bus_space_write_region_N __P((bus_space_tag_t tag,
|
|
* bus_space_handle_t bsh, bus_size_t offset,
|
|
* const u_intN_t *addr, size_t count));
|
|
*
|
|
* Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided
|
|
* to bus space described by tag/handle starting at `offset'.
|
|
*/
|
|
static __inline void vax_mem_write_region_1 __P((bus_space_tag_t,
|
|
bus_space_handle_t, bus_size_t, const u_int8_t *, size_t));
|
|
static __inline void vax_mem_write_region_2 __P((bus_space_tag_t,
|
|
bus_space_handle_t, bus_size_t, const u_int16_t *, size_t));
|
|
static __inline void vax_mem_write_region_4 __P((bus_space_tag_t,
|
|
bus_space_handle_t, bus_size_t, const u_int32_t *, size_t));
|
|
|
|
#define bus_space_write_region_1(t, h, o, a, c) \
|
|
vax_mem_write_region_1((t), (h), (o), (a), (c))
|
|
|
|
#define bus_space_write_region_2(t, h, o, a, c) \
|
|
do { \
|
|
__BUS_SPACE_ADDRESS_SANITY((a), u_int16_t, "buffer"); \
|
|
__BUS_SPACE_ADDRESS_SANITY((h) + (o), u_int16_t, "bus addr"); \
|
|
vax_mem_write_region_2((t), (h), (o), (a), (c)); \
|
|
} while (0)
|
|
|
|
#define bus_space_write_region_4(t, h, o, a, c) \
|
|
do { \
|
|
__BUS_SPACE_ADDRESS_SANITY((a), u_int32_t, "buffer"); \
|
|
__BUS_SPACE_ADDRESS_SANITY((h) + (o), u_int32_t, "bus addr"); \
|
|
vax_mem_write_region_4((t), (h), (o), (a), (c)); \
|
|
} while (0)
|
|
|
|
#if 0 /* Cause a link error for bus_space_write_region_8 */
|
|
#define bus_space_write_region_8 \
|
|
!!! bus_space_write_region_8 unimplemented !!!
|
|
#endif
|
|
|
|
static __inline void
|
|
vax_mem_write_region_1(t, h, o, a, c)
|
|
bus_space_tag_t t;
|
|
bus_space_handle_t h;
|
|
bus_size_t o;
|
|
const u_int8_t *a;
|
|
size_t c;
|
|
{
|
|
bus_addr_t addr = h + o;
|
|
|
|
for (; c != 0; c--, addr++, a++)
|
|
*(volatile u_int8_t *)(addr) = *a;
|
|
}
|
|
|
|
static __inline void
|
|
vax_mem_write_region_2(t, h, o, a, c)
|
|
bus_space_tag_t t;
|
|
bus_space_handle_t h;
|
|
bus_size_t o;
|
|
const u_int16_t *a;
|
|
size_t c;
|
|
{
|
|
bus_addr_t addr = h + o;
|
|
|
|
for (; c != 0; c--, addr++, a++)
|
|
*(volatile u_int16_t *)(addr) = *a;
|
|
}
|
|
|
|
static __inline void
|
|
vax_mem_write_region_4(t, h, o, a, c)
|
|
bus_space_tag_t t;
|
|
bus_space_handle_t h;
|
|
bus_size_t o;
|
|
const u_int32_t *a;
|
|
size_t c;
|
|
{
|
|
bus_addr_t addr = h + o;
|
|
|
|
for (; c != 0; c--, addr++, a++)
|
|
*(volatile u_int32_t *)(addr) = *a;
|
|
}
|
|
|
|
/*
|
|
* void bus_space_set_multi_N __P((bus_space_tag_t tag,
|
|
* bus_space_handle_t bsh, bus_size_t offset, u_intN_t val,
|
|
* size_t count));
|
|
*
|
|
* Write the 1, 2, 4, or 8 byte value `val' to bus space described
|
|
* by tag/handle/offset `count' times.
|
|
*/
|
|
|
|
static __inline void vax_mem_set_multi_1 __P((bus_space_tag_t,
|
|
bus_space_handle_t, bus_size_t, u_int8_t, size_t));
|
|
static __inline void vax_mem_set_multi_2 __P((bus_space_tag_t,
|
|
bus_space_handle_t, bus_size_t, u_int16_t, size_t));
|
|
static __inline void vax_mem_set_multi_4 __P((bus_space_tag_t,
|
|
bus_space_handle_t, bus_size_t, u_int32_t, size_t));
|
|
|
|
#define bus_space_set_multi_1(t, h, o, v, c) \
|
|
vax_mem_set_multi_1((t), (h), (o), (v), (c))
|
|
|
|
#define bus_space_set_multi_2(t, h, o, v, c) \
|
|
do { \
|
|
__BUS_SPACE_ADDRESS_SANITY((h) + (o), u_int16_t, "bus addr"); \
|
|
vax_mem_set_multi_2((t), (h), (o), (v), (c)); \
|
|
} while (0)
|
|
|
|
#define bus_space_set_multi_4(t, h, o, v, c) \
|
|
do { \
|
|
__BUS_SPACE_ADDRESS_SANITY((h) + (o), u_int32_t, "bus addr"); \
|
|
vax_mem_set_multi_4((t), (h), (o), (v), (c)); \
|
|
} while (0)
|
|
|
|
static __inline void
|
|
vax_mem_set_multi_1(t, h, o, v, c)
|
|
bus_space_tag_t t;
|
|
bus_space_handle_t h;
|
|
bus_size_t o;
|
|
u_int8_t v;
|
|
size_t c;
|
|
{
|
|
bus_addr_t addr = h + o;
|
|
|
|
while (c--)
|
|
*(volatile u_int8_t *)(addr) = v;
|
|
}
|
|
|
|
static __inline void
|
|
vax_mem_set_multi_2(t, h, o, v, c)
|
|
bus_space_tag_t t;
|
|
bus_space_handle_t h;
|
|
bus_size_t o;
|
|
u_int16_t v;
|
|
size_t c;
|
|
{
|
|
bus_addr_t addr = h + o;
|
|
|
|
while (c--)
|
|
*(volatile u_int16_t *)(addr) = v;
|
|
}
|
|
|
|
static __inline void
|
|
vax_mem_set_multi_4(t, h, o, v, c)
|
|
bus_space_tag_t t;
|
|
bus_space_handle_t h;
|
|
bus_size_t o;
|
|
u_int32_t v;
|
|
size_t c;
|
|
{
|
|
bus_addr_t addr = h + o;
|
|
|
|
while (c--)
|
|
*(volatile u_int32_t *)(addr) = v;
|
|
}
|
|
|
|
#if 0 /* Cause a link error for bus_space_set_multi_8 */
|
|
#define bus_space_set_multi_8 !!! bus_space_set_multi_8 unimplemented !!!
|
|
#endif
|
|
|
|
/*
|
|
* void bus_space_set_region_N __P((bus_space_tag_t tag,
|
|
* bus_space_handle_t bsh, bus_size_t offset, u_intN_t val,
|
|
* size_t count));
|
|
*
|
|
* Write `count' 1, 2, 4, or 8 byte value `val' to bus space described
|
|
* by tag/handle starting at `offset'.
|
|
*/
|
|
|
|
static __inline void vax_mem_set_region_1 __P((bus_space_tag_t,
|
|
bus_space_handle_t, bus_size_t, u_int8_t, size_t));
|
|
static __inline void vax_mem_set_region_2 __P((bus_space_tag_t,
|
|
bus_space_handle_t, bus_size_t, u_int16_t, size_t));
|
|
static __inline void vax_mem_set_region_4 __P((bus_space_tag_t,
|
|
bus_space_handle_t, bus_size_t, u_int32_t, size_t));
|
|
|
|
#define bus_space_set_region_1(t, h, o, v, c) \
|
|
vax_mem_set_region_1((t), (h), (o), (v), (c))
|
|
|
|
#define bus_space_set_region_2(t, h, o, v, c) \
|
|
do { \
|
|
__BUS_SPACE_ADDRESS_SANITY((h) + (o), u_int16_t, "bus addr"); \
|
|
vax_mem_set_region_2((t), (h), (o), (v), (c)); \
|
|
} while (0)
|
|
|
|
#define bus_space_set_region_4(t, h, o, v, c) \
|
|
do { \
|
|
__BUS_SPACE_ADDRESS_SANITY((h) + (o), u_int32_t, "bus addr"); \
|
|
vax_mem_set_region_4((t), (h), (o), (v), (c)); \
|
|
} while (0)
|
|
|
|
static __inline void
|
|
vax_mem_set_region_1(t, h, o, v, c)
|
|
bus_space_tag_t t;
|
|
bus_space_handle_t h;
|
|
bus_size_t o;
|
|
u_int8_t v;
|
|
size_t c;
|
|
{
|
|
bus_addr_t addr = h + o;
|
|
|
|
for (; c != 0; c--, addr++)
|
|
*(volatile u_int8_t *)(addr) = v;
|
|
}
|
|
|
|
static __inline void
|
|
vax_mem_set_region_2(t, h, o, v, c)
|
|
bus_space_tag_t t;
|
|
bus_space_handle_t h;
|
|
bus_size_t o;
|
|
u_int16_t v;
|
|
size_t c;
|
|
{
|
|
bus_addr_t addr = h + o;
|
|
|
|
for (; c != 0; c--, addr += 2)
|
|
*(volatile u_int16_t *)(addr) = v;
|
|
}
|
|
|
|
static __inline void
|
|
vax_mem_set_region_4(t, h, o, v, c)
|
|
bus_space_tag_t t;
|
|
bus_space_handle_t h;
|
|
bus_size_t o;
|
|
u_int32_t v;
|
|
size_t c;
|
|
{
|
|
bus_addr_t addr = h + o;
|
|
|
|
for (; c != 0; c--, addr += 4)
|
|
*(volatile u_int32_t *)(addr) = v;
|
|
}
|
|
|
|
#if 0 /* Cause a link error for bus_space_set_region_8 */
|
|
#define bus_space_set_region_8 !!! bus_space_set_region_8 unimplemented !!!
|
|
#endif
|
|
|
|
/*
|
|
* void bus_space_copy_region_N __P((bus_space_tag_t tag,
|
|
* bus_space_handle_t bsh1, bus_size_t off1,
|
|
* bus_space_handle_t bsh2, bus_size_t off2,
|
|
* size_t count));
|
|
*
|
|
* Copy `count' 1, 2, 4, or 8 byte values from bus space starting
|
|
* at tag/bsh1/off1 to bus space starting at tag/bsh2/off2.
|
|
*/
|
|
|
|
static __inline void vax_mem_copy_region_1 __P((bus_space_tag_t,
|
|
bus_space_handle_t, bus_size_t, bus_space_handle_t,
|
|
bus_size_t, size_t));
|
|
static __inline void vax_mem_copy_region_2 __P((bus_space_tag_t,
|
|
bus_space_handle_t, bus_size_t, bus_space_handle_t,
|
|
bus_size_t, size_t));
|
|
static __inline void vax_mem_copy_region_4 __P((bus_space_tag_t,
|
|
bus_space_handle_t, bus_size_t, bus_space_handle_t,
|
|
bus_size_t, size_t));
|
|
|
|
#define bus_space_copy_region_1(t, h1, o1, h2, o2, c) \
|
|
vax_mem_copy_region_1((t), (h1), (o1), (h2), (o2), (c))
|
|
|
|
#define bus_space_copy_region_2(t, h1, o1, h2, o2, c) \
|
|
do { \
|
|
__BUS_SPACE_ADDRESS_SANITY((h1) + (o1), u_int16_t, "bus addr 1"); \
|
|
__BUS_SPACE_ADDRESS_SANITY((h2) + (o2), u_int16_t, "bus addr 2"); \
|
|
vax_mem_copy_region_2((t), (h1), (o1), (h2), (o2), (c)); \
|
|
} while (0)
|
|
|
|
#define bus_space_copy_region_4(t, h1, o1, h2, o2, c) \
|
|
do { \
|
|
__BUS_SPACE_ADDRESS_SANITY((h1) + (o1), u_int32_t, "bus addr 1"); \
|
|
__BUS_SPACE_ADDRESS_SANITY((h2) + (o2), u_int32_t, "bus addr 2"); \
|
|
vax_mem_copy_region_4((t), (h1), (o1), (h2), (o2), (c)); \
|
|
} while (0)
|
|
|
|
static __inline void
|
|
vax_mem_copy_region_1(t, h1, o1, h2, o2, c)
|
|
bus_space_tag_t t;
|
|
bus_space_handle_t h1;
|
|
bus_size_t o1;
|
|
bus_space_handle_t h2;
|
|
bus_size_t o2;
|
|
size_t c;
|
|
{
|
|
bus_addr_t addr1 = h1 + o1;
|
|
bus_addr_t addr2 = h2 + o2;
|
|
|
|
if (addr1 >= addr2) {
|
|
/* src after dest: copy forward */
|
|
for (; c != 0; c--, addr1++, addr2++)
|
|
*(volatile u_int8_t *)(addr2) =
|
|
*(volatile u_int8_t *)(addr1);
|
|
} else {
|
|
/* dest after src: copy backwards */
|
|
for (addr1 += (c - 1), addr2 += (c - 1);
|
|
c != 0; c--, addr1--, addr2--)
|
|
*(volatile u_int8_t *)(addr2) =
|
|
*(volatile u_int8_t *)(addr1);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
vax_mem_copy_region_2(t, h1, o1, h2, o2, c)
|
|
bus_space_tag_t t;
|
|
bus_space_handle_t h1;
|
|
bus_size_t o1;
|
|
bus_space_handle_t h2;
|
|
bus_size_t o2;
|
|
size_t c;
|
|
{
|
|
bus_addr_t addr1 = h1 + o1;
|
|
bus_addr_t addr2 = h2 + o2;
|
|
|
|
if (addr1 >= addr2) {
|
|
/* src after dest: copy forward */
|
|
for (; c != 0; c--, addr1 += 2, addr2 += 2)
|
|
*(volatile u_int16_t *)(addr2) =
|
|
*(volatile u_int16_t *)(addr1);
|
|
} else {
|
|
/* dest after src: copy backwards */
|
|
for (addr1 += 2 * (c - 1), addr2 += 2 * (c - 1);
|
|
c != 0; c--, addr1 -= 2, addr2 -= 2)
|
|
*(volatile u_int16_t *)(addr2) =
|
|
*(volatile u_int16_t *)(addr1);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
vax_mem_copy_region_4(t, h1, o1, h2, o2, c)
|
|
bus_space_tag_t t;
|
|
bus_space_handle_t h1;
|
|
bus_size_t o1;
|
|
bus_space_handle_t h2;
|
|
bus_size_t o2;
|
|
size_t c;
|
|
{
|
|
bus_addr_t addr1 = h1 + o1;
|
|
bus_addr_t addr2 = h2 + o2;
|
|
|
|
if (addr1 >= addr2) {
|
|
/* src after dest: copy forward */
|
|
for (; c != 0; c--, addr1 += 4, addr2 += 4)
|
|
*(volatile u_int32_t *)(addr2) =
|
|
*(volatile u_int32_t *)(addr1);
|
|
} else {
|
|
/* dest after src: copy backwards */
|
|
for (addr1 += 4 * (c - 1), addr2 += 4 * (c - 1);
|
|
c != 0; c--, addr1 -= 4, addr2 -= 4)
|
|
*(volatile u_int32_t *)(addr2) =
|
|
*(volatile u_int32_t *)(addr1);
|
|
}
|
|
}
|
|
|
|
#if 0 /* Cause a link error for bus_space_copy_8 */
|
|
#define bus_space_copy_region_8 !!! bus_space_copy_region_8 unimplemented !!!
|
|
#endif
|
|
|
|
|
|
/*
|
|
* Bus read/write barrier methods.
|
|
*
|
|
* void bus_space_barrier __P((bus_space_tag_t tag,
|
|
* bus_space_handle_t bsh, bus_size_t offset,
|
|
* bus_size_t len, int flags));
|
|
*
|
|
* Note: the vax does not currently require barriers, but we must
|
|
* provide the flags to MI code.
|
|
*/
|
|
#define bus_space_barrier(t, h, o, l, f) \
|
|
((void)((void)(t), (void)(h), (void)(o), (void)(l), (void)(f)))
|
|
#define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */
|
|
#define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */
|
|
|
|
|
|
/*
|
|
* Flags used in various bus DMA methods.
|
|
*/
|
|
#define BUS_DMA_WAITOK 0x00 /* safe to sleep (pseudo-flag) */
|
|
#define BUS_DMA_NOWAIT 0x01 /* not safe to sleep */
|
|
#define BUS_DMA_ALLOCNOW 0x02 /* perform resource allocation now */
|
|
#define BUS_DMA_COHERENT 0x04 /* hint: map memory DMA coherent */
|
|
#define BUS_DMA_BUS1 0x10 /* placeholders for bus functions... */
|
|
#define BUS_DMA_BUS2 0x20
|
|
#define BUS_DMA_BUS3 0x40
|
|
#define BUS_DMA_BUS4 0x80
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#define VAX_BUS_DMA_SPILLPAGE BUS_DMA_BUS1 /* VS4000 kludge */
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/*
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* Private flags stored in the DMA map.
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*/
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#define DMAMAP_HAS_SGMAP 0x80000000 /* sgva/len are valid */
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/* Forwards needed by prototypes below. */
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struct mbuf;
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struct uio;
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struct vax_sgmap;
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/*
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* Operations performed by bus_dmamap_sync().
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*/
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#define BUS_DMASYNC_PREREAD 0x01 /* pre-read synchronization */
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#define BUS_DMASYNC_POSTREAD 0x02 /* post-read synchronization */
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#define BUS_DMASYNC_PREWRITE 0x04 /* pre-write synchronization */
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#define BUS_DMASYNC_POSTWRITE 0x08 /* post-write synchronization */
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/*
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* vax_bus_t
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*
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* Busses supported by NetBSD/vax, used by internal
|
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* utility functions. NOT TO BE USED BY MACHINE-INDEPENDENT
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* CODE!
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|
*/
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typedef enum {
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VAX_BUS_MAINBUS,
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VAX_BUS_SBI,
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VAX_BUS_MASSBUS,
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VAX_BUS_UNIBUS, /* Also handles QBUS */
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VAX_BUS_BI,
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VAX_BUS_XMI,
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VAX_BUS_TURBOCHANNEL
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} vax_bus_t;
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|
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typedef struct vax_bus_dma_tag *bus_dma_tag_t;
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typedef struct vax_bus_dmamap *bus_dmamap_t;
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|
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/*
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* bus_dma_segment_t
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*
|
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* Describes a single contiguous DMA transaction. Values
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* are suitable for programming into DMA registers.
|
|
*/
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struct vax_bus_dma_segment {
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bus_addr_t ds_addr; /* DMA address */
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bus_size_t ds_len; /* length of transfer */
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};
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typedef struct vax_bus_dma_segment bus_dma_segment_t;
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|
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/*
|
|
* bus_dma_tag_t
|
|
*
|
|
* A machine-dependent opaque type describing the implementation of
|
|
* DMA for a given bus.
|
|
*/
|
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struct vax_bus_dma_tag {
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void *_cookie; /* cookie used in the guts */
|
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bus_addr_t _wbase; /* DMA window base */
|
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bus_size_t _wsize; /* DMA window size */
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|
|
|
/*
|
|
* Some chipsets have a built-in boundary constraint, independent
|
|
* of what the device requests. This allows that boundary to
|
|
* be specified. If the device has a more restrictive contraint,
|
|
* the map will use that, otherwise this boundary will be used.
|
|
* This value is ignored if 0.
|
|
*/
|
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bus_size_t _boundary;
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|
|
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/*
|
|
* A bus may have more than one SGMAP window, so SGMAP
|
|
* windows also get a pointer to their SGMAP state.
|
|
*/
|
|
struct vax_sgmap *_sgmap;
|
|
|
|
/*
|
|
* Internal-use only utility methods. NOT TO BE USED BY
|
|
* MACHINE-INDEPENDENT CODE!
|
|
*/
|
|
bus_dma_tag_t (*_get_tag) __P((bus_dma_tag_t, vax_bus_t));
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|
|
|
/*
|
|
* DMA mapping methods.
|
|
*/
|
|
int (*_dmamap_create) __P((bus_dma_tag_t, bus_size_t, int,
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|
bus_size_t, bus_size_t, int, bus_dmamap_t *));
|
|
void (*_dmamap_destroy) __P((bus_dma_tag_t, bus_dmamap_t));
|
|
int (*_dmamap_load) __P((bus_dma_tag_t, bus_dmamap_t, void *,
|
|
bus_size_t, struct proc *, int));
|
|
int (*_dmamap_load_mbuf) __P((bus_dma_tag_t, bus_dmamap_t,
|
|
struct mbuf *, int));
|
|
int (*_dmamap_load_uio) __P((bus_dma_tag_t, bus_dmamap_t,
|
|
struct uio *, int));
|
|
int (*_dmamap_load_raw) __P((bus_dma_tag_t, bus_dmamap_t,
|
|
bus_dma_segment_t *, int, bus_size_t, int));
|
|
void (*_dmamap_unload) __P((bus_dma_tag_t, bus_dmamap_t));
|
|
void (*_dmamap_sync) __P((bus_dma_tag_t, bus_dmamap_t,
|
|
bus_addr_t, bus_size_t, int));
|
|
|
|
/*
|
|
* DMA memory utility functions.
|
|
*/
|
|
int (*_dmamem_alloc) __P((bus_dma_tag_t, bus_size_t, bus_size_t,
|
|
bus_size_t, bus_dma_segment_t *, int, int *, int));
|
|
void (*_dmamem_free) __P((bus_dma_tag_t,
|
|
bus_dma_segment_t *, int));
|
|
int (*_dmamem_map) __P((bus_dma_tag_t, bus_dma_segment_t *,
|
|
int, size_t, caddr_t *, int));
|
|
void (*_dmamem_unmap) __P((bus_dma_tag_t, caddr_t, size_t));
|
|
int (*_dmamem_mmap) __P((bus_dma_tag_t, bus_dma_segment_t *,
|
|
int, int, int, int));
|
|
};
|
|
|
|
#define vaxbus_dma_get_tag(t, b) \
|
|
(*(t)->_get_tag)(t, b)
|
|
|
|
#define bus_dmamap_create(t, s, n, m, b, f, p) \
|
|
(*(t)->_dmamap_create)((t), (s), (n), (m), (b), (f), (p))
|
|
#define bus_dmamap_destroy(t, p) \
|
|
(*(t)->_dmamap_destroy)((t), (p))
|
|
#define bus_dmamap_load(t, m, b, s, p, f) \
|
|
(*(t)->_dmamap_load)((t), (m), (b), (s), (p), (f))
|
|
#define bus_dmamap_load_mbuf(t, m, b, f) \
|
|
(*(t)->_dmamap_load_mbuf)((t), (m), (b), (f))
|
|
#define bus_dmamap_load_uio(t, m, u, f) \
|
|
(*(t)->_dmamap_load_uio)((t), (m), (u), (f))
|
|
#define bus_dmamap_load_raw(t, m, sg, n, s, f) \
|
|
(*(t)->_dmamap_load_raw)((t), (m), (sg), (n), (s), (f))
|
|
#define bus_dmamap_unload(t, p) \
|
|
(*(t)->_dmamap_unload)((t), (p))
|
|
#define bus_dmamap_sync(t, p, o, l, ops) \
|
|
(*(t)->_dmamap_sync)((t), (p), (o), (l), (ops))
|
|
#define bus_dmamem_alloc(t, s, a, b, sg, n, r, f) \
|
|
(*(t)->_dmamem_alloc)((t), (s), (a), (b), (sg), (n), (r), (f))
|
|
#define bus_dmamem_free(t, sg, n) \
|
|
(*(t)->_dmamem_free)((t), (sg), (n))
|
|
#define bus_dmamem_map(t, sg, n, s, k, f) \
|
|
(*(t)->_dmamem_map)((t), (sg), (n), (s), (k), (f))
|
|
#define bus_dmamem_unmap(t, k, s) \
|
|
(*(t)->_dmamem_unmap)((t), (k), (s))
|
|
#define bus_dmamem_mmap(t, sg, n, o, p, f) \
|
|
(*(t)->_dmamem_mmap)((t), (sg), (n), (o), (p), (f))
|
|
|
|
/*
|
|
* bus_dmamap_t
|
|
*
|
|
* Describes a DMA mapping.
|
|
*/
|
|
struct vax_bus_dmamap {
|
|
/*
|
|
* PRIVATE MEMBERS: not for use my machine-independent code.
|
|
*/
|
|
bus_size_t _dm_size; /* largest DMA transfer mappable */
|
|
int _dm_segcnt; /* number of segs this map can map */
|
|
bus_size_t _dm_maxsegsz; /* largest possible segment */
|
|
bus_size_t _dm_boundary; /* don't cross this */
|
|
int _dm_flags; /* misc. flags */
|
|
|
|
/*
|
|
* This is used only for SGMAP-mapped DMA, but we keep it
|
|
* here to avoid pointless indirection.
|
|
*/
|
|
int _dm_pteidx; /* PTE index */
|
|
int _dm_ptecnt; /* PTE count */
|
|
u_long _dm_sgva; /* allocated sgva */
|
|
bus_size_t _dm_sgvalen; /* svga length */
|
|
|
|
/*
|
|
* PUBLIC MEMBERS: these are used by machine-independent code.
|
|
*/
|
|
bus_size_t dm_mapsize; /* size of the mapping */
|
|
int dm_nsegs; /* # valid segments in mapping */
|
|
bus_dma_segment_t dm_segs[1]; /* segments; variable length */
|
|
};
|
|
|
|
#ifdef _VAX_BUS_DMA_PRIVATE
|
|
int _bus_dmamap_create __P((bus_dma_tag_t, bus_size_t, int, bus_size_t,
|
|
bus_size_t, int, bus_dmamap_t *));
|
|
void _bus_dmamap_destroy __P((bus_dma_tag_t, bus_dmamap_t));
|
|
|
|
int _bus_dmamap_load __P((bus_dma_tag_t, bus_dmamap_t,
|
|
void *, bus_size_t, struct proc *, int));
|
|
int _bus_dmamap_load_mbuf __P((bus_dma_tag_t,
|
|
bus_dmamap_t, struct mbuf *, int));
|
|
int _bus_dmamap_load_uio __P((bus_dma_tag_t,
|
|
bus_dmamap_t, struct uio *, int));
|
|
int _bus_dmamap_load_raw __P((bus_dma_tag_t,
|
|
bus_dmamap_t, bus_dma_segment_t *, int, bus_size_t, int));
|
|
|
|
void _bus_dmamap_unload __P((bus_dma_tag_t, bus_dmamap_t));
|
|
void _bus_dmamap_sync __P((bus_dma_tag_t, bus_dmamap_t, bus_addr_t,
|
|
bus_size_t, int));
|
|
|
|
int _bus_dmamem_alloc __P((bus_dma_tag_t tag, bus_size_t size,
|
|
bus_size_t alignment, bus_size_t boundary,
|
|
bus_dma_segment_t *segs, int nsegs, int *rsegs, int flags));
|
|
void _bus_dmamem_free __P((bus_dma_tag_t tag, bus_dma_segment_t *segs,
|
|
int nsegs));
|
|
int _bus_dmamem_map __P((bus_dma_tag_t tag, bus_dma_segment_t *segs,
|
|
int nsegs, size_t size, caddr_t *kvap, int flags));
|
|
void _bus_dmamem_unmap __P((bus_dma_tag_t tag, caddr_t kva,
|
|
size_t size));
|
|
int _bus_dmamem_mmap __P((bus_dma_tag_t tag, bus_dma_segment_t *segs,
|
|
int nsegs, int off, int prot, int flags));
|
|
#endif /* _VAX_BUS_DMA_PRIVATE */
|
|
|
|
#endif /* _VAX_BUS_H_ */
|