8e0bfc6b32
than a a stack-limited list. This removes the artifical limit on s/g list size. cvs: ----------------------------------------------------------------------
1058 lines
30 KiB
C
1058 lines
30 KiB
C
/*-
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* Copyright (c) 1996, 1997, 1998, 2001 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) 1997-1999 Eduardo E. Horvath. All rights reserved.
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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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* from: NetBSD: bus.h,v 1.28 2001/07/19 15:32:19 thorpej Exp
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* and
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* from: FreeBSD: src/sys/alpha/include/bus.h,v 1.9 2001/01/09
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_BUS_H_
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#define _MACHINE_BUS_H_
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#ifdef BUS_SPACE_DEBUG
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#include <sys/ktr.h>
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#endif
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#include <machine/cpufunc.h>
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#include <machine/upa.h>
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/*
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* UPA and SBUS spaces are non-cached and big endian
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* (except for RAM and PROM)
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*
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* PCI spaces are non-cached and little endian
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*/
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#define UPA_BUS_SPACE 0
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#define SBUS_BUS_SPACE 1
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#define PCI_CONFIG_BUS_SPACE 2
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#define PCI_IO_BUS_SPACE 3
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#define PCI_MEMORY_BUS_SPACE 4
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#define LAST_BUS_SPACE 5
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extern int bus_type_asi[];
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extern int bus_stream_asi[];
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#define __BUS_SPACE_HAS_STREAM_METHODS 1
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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_space_handle_t;
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typedef int bus_type_t;
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typedef u_long bus_addr_t;
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typedef u_long bus_size_t;
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#define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF
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#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
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#define BUS_SPACE_MAXSIZE 0xFFFFFFFFFFFFFFFF
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#define BUS_SPACE_MAXADDR_24BIT 0xFFFFFF
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#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
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#define BUS_SPACE_MAXADDR 0xFFFFFFFF
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#define BUS_SPACE_UNRESTRICTED (~0UL)
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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 bus_space_tag *bus_space_tag_t;
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struct bus_space_tag {
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void *bst_cookie;
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bus_space_tag_t bst_parent;
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int bst_type;
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void (*bst_bus_barrier)(bus_space_tag_t, bus_space_handle_t,
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bus_size_t, bus_size_t, int);
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};
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/*
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* Bus space function prototypes.
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*/
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static void bus_space_barrier(bus_space_tag_t, bus_space_handle_t, bus_size_t,
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bus_size_t, int);
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static int bus_space_subregion(bus_space_tag_t, bus_space_handle_t,
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bus_size_t, bus_size_t, bus_space_handle_t *);
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/*
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* Map a region of device bus space into CPU virtual address space.
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*/
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static __inline int bus_space_map(bus_space_tag_t t, bus_addr_t addr,
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bus_size_t size, int flags,
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bus_space_handle_t *bshp);
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static __inline int
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bus_space_map(bus_space_tag_t t __unused, bus_addr_t addr,
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bus_size_t size __unused, int flags __unused,
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bus_space_handle_t *bshp)
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{
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*bshp = addr;
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return (0);
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}
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/*
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* Unmap a region of device bus space.
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*/
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static __inline void bus_space_unmap(bus_space_tag_t t, bus_space_handle_t bsh,
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bus_size_t size);
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static __inline void
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bus_space_unmap(bus_space_tag_t t __unused, bus_space_handle_t bsh __unused,
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bus_size_t size __unused)
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{
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}
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/* This macro finds the first "upstream" implementation of method `f' */
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#define _BS_CALL(t,f) \
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while (t->f == NULL) \
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t = t->bst_parent; \
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return (*(t)->f)
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static __inline void
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bus_space_barrier(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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bus_size_t s, int f)
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{
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_BS_CALL(t, bst_bus_barrier)(t, h, o, s, f);
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}
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static __inline int
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bus_space_subregion(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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bus_size_t s, bus_space_handle_t *hp)
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{
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*hp = h + o;
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return (0);
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}
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/* flags for bus space map functions */
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#define BUS_SPACE_MAP_CACHEABLE 0x0001
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#define BUS_SPACE_MAP_LINEAR 0x0002
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#define BUS_SPACE_MAP_READONLY 0x0004
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#define BUS_SPACE_MAP_PREFETCHABLE 0x0008
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/* placeholders for bus functions... */
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#define BUS_SPACE_MAP_BUS1 0x0100
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#define BUS_SPACE_MAP_BUS2 0x0200
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#define BUS_SPACE_MAP_BUS3 0x0400
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#define BUS_SPACE_MAP_BUS4 0x0800
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/* flags for bus_space_barrier() */
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#define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */
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#define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */
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#ifdef BUS_SPACE_DEBUG
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#define KTR_BUS KTR_CT2
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#define BUS_HANDLE_MIN UPA_MEMSTART
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#define __BUS_DEBUG_ACCESS(h, o, desc, sz) do { \
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CTR4(KTR_BUS, "bus space: %s %d: handle %#lx, offset %#lx", \
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(desc), (sz), (h), (o)); \
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if ((h) + (o) < BUS_HANDLE_MIN) \
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panic("bus space access at %#lx out of range", \
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(h) + (o)); \
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} while (0)
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#else
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#define __BUS_DEBUG_ACCESS(h, o, desc, sz)
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#endif
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static __inline uint8_t
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bus_space_read_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
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{
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__BUS_DEBUG_ACCESS(h, o, "read", 1);
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return (lduba_nc((caddr_t)(h + o), bus_type_asi[t->bst_type]));
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}
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static __inline uint16_t
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bus_space_read_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
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{
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__BUS_DEBUG_ACCESS(h, o, "read", 2);
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return (lduha_nc((caddr_t)(h + o), bus_type_asi[t->bst_type]));
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}
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static __inline uint32_t
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bus_space_read_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
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{
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__BUS_DEBUG_ACCESS(h, o, "read", 4);
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return (lduwa_nc((caddr_t)(h + o), bus_type_asi[t->bst_type]));
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}
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static __inline uint64_t
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bus_space_read_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
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{
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__BUS_DEBUG_ACCESS(h, o, "read", 8);
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return (ldxa_nc((caddr_t)(h + o), bus_type_asi[t->bst_type]));
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}
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static __inline void
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bus_space_read_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint8_t *a, size_t c)
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{
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while (c-- > 0)
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*a++ = bus_space_read_1(t, h, o);
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}
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static __inline void
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bus_space_read_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint16_t *a, size_t c)
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{
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while (c-- > 0)
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*a++ = bus_space_read_2(t, h, o);
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}
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static __inline void
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bus_space_read_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint32_t *a, size_t c)
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{
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while (c-- > 0)
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*a++ = bus_space_read_4(t, h, o);
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}
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static __inline void
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bus_space_read_multi_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint64_t *a, size_t c)
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{
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while (c-- > 0)
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*a++ = bus_space_read_8(t, h, o);
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}
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static __inline void
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bus_space_write_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint8_t v)
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{
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__BUS_DEBUG_ACCESS(h, o, "write", 1);
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stba_nc((caddr_t)(h + o), bus_type_asi[t->bst_type], v);
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}
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static __inline void
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bus_space_write_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint16_t v)
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{
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__BUS_DEBUG_ACCESS(h, o, "write", 2);
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stha_nc((caddr_t)(h + o), bus_type_asi[t->bst_type], v);
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}
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static __inline void
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bus_space_write_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint32_t v)
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{
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__BUS_DEBUG_ACCESS(h, o, "write", 4);
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stwa_nc((caddr_t)(h + o), bus_type_asi[t->bst_type], v);
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}
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static __inline void
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bus_space_write_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint64_t v)
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{
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__BUS_DEBUG_ACCESS(h, o, "write", 8);
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stxa_nc((caddr_t)(h + o), bus_type_asi[t->bst_type], v);
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}
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static __inline void
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bus_space_write_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint8_t *a, size_t c)
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{
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while (c-- > 0)
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bus_space_write_1(t, h, o, *a++);
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}
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static __inline void
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bus_space_write_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint16_t *a, size_t c)
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{
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while (c-- > 0)
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bus_space_write_2(t, h, o, *a++);
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}
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static __inline void
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bus_space_write_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint32_t *a, size_t c)
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{
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while (c-- > 0)
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bus_space_write_4(t, h, o, *a++);
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}
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static __inline void
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bus_space_write_multi_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint64_t *a, size_t c)
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{
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while (c-- > 0)
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bus_space_write_8(t, h, o, *a++);
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}
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static __inline void
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bus_space_set_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint8_t v, size_t c)
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{
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while (c-- > 0)
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bus_space_write_1(t, h, o, v);
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}
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static __inline void
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bus_space_set_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint16_t v, size_t c)
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{
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while (c-- > 0)
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bus_space_write_2(t, h, o, v);
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}
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static __inline void
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bus_space_set_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint32_t v, size_t c)
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{
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while (c-- > 0)
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bus_space_write_4(t, h, o, v);
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}
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static __inline void
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bus_space_set_multi_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint64_t v, size_t c)
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{
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while (c-- > 0)
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bus_space_write_8(t, h, o, v);
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}
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static __inline void
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bus_space_read_region_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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u_int8_t *a, bus_size_t c)
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{
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for (; c; a++, c--, o++)
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*a = bus_space_read_1(t, h, o);
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}
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static __inline void
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bus_space_read_region_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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u_int16_t *a, bus_size_t c)
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{
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for (; c; a++, c--, o+=2)
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*a = bus_space_read_2(t, h, o);
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}
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static __inline void
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bus_space_read_region_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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u_int32_t *a, bus_size_t c)
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{
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for (; c; a++, c--, o+=4)
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*a = bus_space_read_4(t, h, o);
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}
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static __inline void
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bus_space_read_region_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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u_int64_t *a, bus_size_t c)
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{
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for (; c; a++, c--, o+=8)
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*a = bus_space_read_8(t, h, o);
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}
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static __inline void
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bus_space_write_region_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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const u_int8_t *a, bus_size_t c)
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{
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for (; c; a++, c--, o++)
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bus_space_write_1(t, h, o, *a);
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}
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static __inline void
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bus_space_write_region_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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const u_int16_t *a, bus_size_t c)
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{
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for (; c; a++, c--, o+=2)
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bus_space_write_2(t, h, o, *a);
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}
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static __inline void
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bus_space_write_region_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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const u_int32_t *a, bus_size_t c)
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{
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for (; c; a++, c--, o+=4)
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bus_space_write_4(t, h, o, *a);
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}
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static __inline void
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bus_space_write_region_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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const u_int64_t *a, bus_size_t c)
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{
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for (; c; a++, c--, o+=8)
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bus_space_write_8(t, h, o, *a);
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}
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|
static __inline void
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bus_space_set_region_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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const u_int8_t v, bus_size_t c)
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{
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|
for (; c; c--, o++)
|
|
bus_space_write_1(t, h, o, v);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_region_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
|
|
const u_int16_t v, bus_size_t c)
|
|
{
|
|
for (; c; c--, o+=2)
|
|
bus_space_write_2(t, h, o, v);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_region_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
|
|
const u_int32_t v, bus_size_t c)
|
|
{
|
|
for (; c; c--, o+=4)
|
|
bus_space_write_4(t, h, o, v);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_region_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
|
|
const u_int64_t v, bus_size_t c)
|
|
{
|
|
for (; c; c--, o+=8)
|
|
bus_space_write_8(t, h, o, v);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_copy_region_1(bus_space_tag_t t, bus_space_handle_t h1,
|
|
bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c)
|
|
{
|
|
for (; c; c--, o1++, o2++)
|
|
bus_space_write_1(t, h1, o1, bus_space_read_1(t, h2, o2));
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_copy_region_2(bus_space_tag_t t, bus_space_handle_t h1,
|
|
bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c)
|
|
{
|
|
for (; c; c--, o1+=2, o2+=2)
|
|
bus_space_write_2(t, h1, o1, bus_space_read_2(t, h2, o2));
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_copy_region_4(bus_space_tag_t t, bus_space_handle_t h1,
|
|
bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c)
|
|
{
|
|
for (; c; c--, o1+=4, o2+=4)
|
|
bus_space_write_4(t, h1, o1, bus_space_read_4(t, h2, o2));
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_copy_region_8(bus_space_tag_t t, bus_space_handle_t h1,
|
|
bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c)
|
|
{
|
|
for (; c; c--, o1+=8, o2+=8)
|
|
bus_space_write_8(t, h1, o1, bus_space_read_8(t, h2, o2));
|
|
}
|
|
|
|
static __inline uint8_t
|
|
bus_space_read_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
|
|
{
|
|
|
|
__BUS_DEBUG_ACCESS(h, o, "read stream", 1);
|
|
return (lduba_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type]));
|
|
}
|
|
|
|
static __inline uint16_t
|
|
bus_space_read_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
|
|
{
|
|
|
|
__BUS_DEBUG_ACCESS(h, o, "read stream", 2);
|
|
return (lduha_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type]));
|
|
}
|
|
|
|
static __inline uint32_t
|
|
bus_space_read_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
|
|
{
|
|
|
|
__BUS_DEBUG_ACCESS(h, o, "read stream", 4);
|
|
return (lduwa_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type]));
|
|
}
|
|
|
|
static __inline uint64_t
|
|
bus_space_read_stream_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
|
|
{
|
|
|
|
__BUS_DEBUG_ACCESS(h, o, "read stream", 8);
|
|
return (ldxa_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type]));
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_read_multi_stream_1(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, uint8_t *a, size_t c)
|
|
{
|
|
|
|
while (c-- > 0)
|
|
*a++ = bus_space_read_stream_1(t, h, o);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_read_multi_stream_2(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, uint16_t *a, size_t c)
|
|
{
|
|
|
|
while (c-- > 0)
|
|
*a++ = bus_space_read_stream_2(t, h, o);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_read_multi_stream_4(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, uint32_t *a, size_t c)
|
|
{
|
|
|
|
while (c-- > 0)
|
|
*a++ = bus_space_read_stream_4(t, h, o);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_read_multi_stream_8(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, uint64_t *a, size_t c)
|
|
{
|
|
|
|
while (c-- > 0)
|
|
*a++ = bus_space_read_stream_8(t, h, o);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
|
|
uint8_t v)
|
|
{
|
|
|
|
__BUS_DEBUG_ACCESS(h, o, "write stream", 1);
|
|
stba_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type], v);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
|
|
uint16_t v)
|
|
{
|
|
|
|
__BUS_DEBUG_ACCESS(h, o, "write stream", 2);
|
|
stha_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type], v);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
|
|
uint32_t v)
|
|
{
|
|
|
|
__BUS_DEBUG_ACCESS(h, o, "write stream", 4);
|
|
stwa_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type], v);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_stream_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
|
|
uint64_t v)
|
|
{
|
|
|
|
__BUS_DEBUG_ACCESS(h, o, "write stream", 8);
|
|
stxa_nc((caddr_t)(h + o), bus_stream_asi[t->bst_type], v);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_multi_stream_1(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, const uint8_t *a, size_t c)
|
|
{
|
|
|
|
while (c-- > 0)
|
|
bus_space_write_stream_1(t, h, o, *a++);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_multi_stream_2(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, const uint16_t *a, size_t c)
|
|
{
|
|
|
|
while (c-- > 0)
|
|
bus_space_write_stream_2(t, h, o, *a++);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_multi_stream_4(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, const uint32_t *a, size_t c)
|
|
{
|
|
|
|
while (c-- > 0)
|
|
bus_space_write_stream_4(t, h, o, *a++);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_multi_stream_8(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, const uint64_t *a, size_t c)
|
|
{
|
|
|
|
while (c-- > 0)
|
|
bus_space_write_stream_8(t, h, o, *a++);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_multi_stream_1(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, uint8_t v, size_t c)
|
|
{
|
|
|
|
while (c-- > 0)
|
|
bus_space_write_stream_1(t, h, o, v);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_multi_stream_2(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, uint16_t v, size_t c)
|
|
{
|
|
|
|
while (c-- > 0)
|
|
bus_space_write_stream_2(t, h, o, v);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_multi_stream_4(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, uint32_t v, size_t c)
|
|
{
|
|
|
|
while (c-- > 0)
|
|
bus_space_write_stream_4(t, h, o, v);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_multi_stream_8(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, uint64_t v, size_t c)
|
|
{
|
|
|
|
while (c-- > 0)
|
|
bus_space_write_stream_8(t, h, o, v);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_read_region_stream_1(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, u_int8_t *a, bus_size_t c)
|
|
{
|
|
for (; c; a++, c--, o++)
|
|
*a = bus_space_read_stream_1(t, h, o);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_read_region_stream_2(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, u_int16_t *a, bus_size_t c)
|
|
{
|
|
for (; c; a++, c--, o+=2)
|
|
*a = bus_space_read_stream_2(t, h, o);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_read_region_stream_4(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, u_int32_t *a, bus_size_t c)
|
|
{
|
|
for (; c; a++, c--, o+=4)
|
|
*a = bus_space_read_stream_4(t, h, o);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_read_region_stream_8(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, u_int64_t *a, bus_size_t c)
|
|
{
|
|
for (; c; a++, c--, o+=8)
|
|
*a = bus_space_read_stream_8(t, h, o);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_region_stream_1(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, const u_int8_t *a, bus_size_t c)
|
|
{
|
|
for (; c; a++, c--, o++)
|
|
bus_space_write_stream_1(t, h, o, *a);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_region_stream_2(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, const u_int16_t *a, bus_size_t c)
|
|
{
|
|
for (; c; a++, c--, o+=2)
|
|
bus_space_write_stream_2(t, h, o, *a);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_region_stream_4(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, const u_int32_t *a, bus_size_t c)
|
|
{
|
|
for (; c; a++, c--, o+=4)
|
|
bus_space_write_stream_4(t, h, o, *a);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_region_stream_8(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, const u_int64_t *a, bus_size_t c)
|
|
{
|
|
for (; c; a++, c--, o+=8)
|
|
bus_space_write_stream_8(t, h, o, *a);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_region_stream_1(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, const u_int8_t v, bus_size_t c)
|
|
{
|
|
for (; c; c--, o++)
|
|
bus_space_write_stream_1(t, h, o, v);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_region_stream_2(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, const u_int16_t v, bus_size_t c)
|
|
{
|
|
for (; c; c--, o+=2)
|
|
bus_space_write_stream_2(t, h, o, v);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_region_stream_4(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, const u_int32_t v, bus_size_t c)
|
|
{
|
|
for (; c; c--, o+=4)
|
|
bus_space_write_stream_4(t, h, o, v);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_region_stream_8(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, const u_int64_t v, bus_size_t c)
|
|
{
|
|
for (; c; c--, o+=8)
|
|
bus_space_write_stream_8(t, h, o, v);
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_copy_region_stream_1(bus_space_tag_t t, bus_space_handle_t h1,
|
|
bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c)
|
|
{
|
|
for (; c; c--, o1++, o2++)
|
|
bus_space_write_stream_1(t, h1, o1, bus_space_read_stream_1(t, h2,
|
|
o2));
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_copy_region_stream_2(bus_space_tag_t t, bus_space_handle_t h1,
|
|
bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c)
|
|
{
|
|
for (; c; c--, o1+=2, o2+=2)
|
|
bus_space_write_stream_2(t, h1, o1, bus_space_read_stream_2(t, h2,
|
|
o2));
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_copy_region_stream_4(bus_space_tag_t t, bus_space_handle_t h1,
|
|
bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c)
|
|
{
|
|
for (; c; c--, o1+=4, o2+=4)
|
|
bus_space_write_stream_4(t, h1, o1, bus_space_read_stream_4(t, h2,
|
|
o2));
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_copy_region_stream_8(bus_space_tag_t t, bus_space_handle_t h1,
|
|
bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c)
|
|
{
|
|
for (; c; c--, o1+=8, o2+=8)
|
|
bus_space_write_stream_8(t, h1, o1, bus_space_read_8(t, h2, o2));
|
|
}
|
|
|
|
static __inline int
|
|
bus_space_peek_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
|
|
u_int8_t *a)
|
|
{
|
|
|
|
__BUS_DEBUG_ACCESS(h, o, "peek", 1);
|
|
return (fasword8(bus_type_asi[t->bst_type], (caddr_t)(h + o), a));
|
|
}
|
|
|
|
static __inline int
|
|
bus_space_peek_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
|
|
u_int16_t *a)
|
|
{
|
|
|
|
__BUS_DEBUG_ACCESS(h, o, "peek", 2);
|
|
return (fasword16(bus_type_asi[t->bst_type], (caddr_t)(h + o), a));
|
|
}
|
|
|
|
static __inline int
|
|
bus_space_peek_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
|
|
u_int32_t *a)
|
|
{
|
|
|
|
__BUS_DEBUG_ACCESS(h, o, "peek", 4);
|
|
return (fasword32(bus_type_asi[t->bst_type], (caddr_t)(h + o), a));
|
|
}
|
|
|
|
/* Back-compat functions for old ISA drivers */
|
|
extern bus_space_tag_t isa_io_bt;
|
|
extern bus_space_handle_t isa_io_hdl;
|
|
extern bus_space_tag_t isa_mem_bt;
|
|
extern bus_space_handle_t isa_mem_hdl;
|
|
|
|
#define inb(o) bus_space_read_1(isa_io_bt, isa_io_hdl, o)
|
|
#define inw(o) bus_space_read_2(isa_io_bt, isa_io_hdl, o)
|
|
#define inl(o) bus_space_read_4(isa_io_bt, isa_io_hdl, o)
|
|
#define outb(o, v) bus_space_write_1(isa_io_bt, isa_io_hdl, o, v)
|
|
#define outw(o, v) bus_space_write_2(isa_io_bt, isa_io_hdl, o, v)
|
|
#define outl(o, v) bus_space_write_4(isa_io_bt, isa_io_hdl, o, v)
|
|
|
|
#define readb(o) bus_space_read_1(isa_mem_bt, isa_mem_hdl, o)
|
|
#define readw(o) bus_space_read_2(isa_mem_bt, isa_mem_hdl, o)
|
|
#define readl(o) bus_space_read_4(isa_mem_bt, isa_mem_hdl, o)
|
|
#define writeb(o, v) bus_space_write_1(isa_mem_bt, isa_mem_hdl, o, v)
|
|
#define writew(o, v) bus_space_write_2(isa_mem_bt, isa_mem_hdl, o, v)
|
|
#define writel(o, v) bus_space_write_4(isa_mem_bt, isa_mem_hdl, o, v)
|
|
|
|
#define insb(o, a, c) \
|
|
bus_space_read_multi_1(isa_io_bt, isa_io_hdl, o, (void*)a, c)
|
|
#define insw(o, a, c) \
|
|
bus_space_read_multi_2(isa_io_bt, isa_io_hdl, o, (void*)a, c)
|
|
#define insl(o, a, c) \
|
|
bus_space_read_multi_4(isa_io_bt, isa_io_hdl, o, (void*)a, c)
|
|
#define outsb(o, a, c) \
|
|
bus_space_write_multi_1(isa_io_bt, isa_io_hdl, o, (void*)a, c)
|
|
#define outsw(o, a, c) \
|
|
bus_space_write_multi_2(isa_io_bt, isa_io_hdl, o, (void*)a, c)
|
|
#define outsl(o, a, c) \
|
|
bus_space_write_multi_4(isa_io_bt, isa_io_hdl, o, (void*)a, c)
|
|
|
|
#define memcpy_fromio(d, s, c) \
|
|
bus_space_read_region_1(isa_mem_bt, isa_mem_hdl, s, d, c)
|
|
#define memcpy_toio(d, s, c) \
|
|
bus_space_write_region_1(isa_mem_bt, isa_mem_hdl, d, s, c)
|
|
#define memcpy_io(d, s, c) \
|
|
bus_space_copy_region_1(isa_mem_bt, isa_mem_hdl, s, isa_mem_hdl, d, c)
|
|
#define memset_io(d, v, c) \
|
|
bus_space_set_region_1(isa_mem_bt, isa_mem_hdl, d, v, c)
|
|
#define memsetw_io(d, v, c) \
|
|
bus_space_set_region_2(isa_mem_bt, isa_mem_hdl, d, v, c)
|
|
|
|
static __inline void
|
|
memsetw(void *d, int val, size_t size)
|
|
{
|
|
u_int16_t *sp = d;
|
|
|
|
while (size--)
|
|
*sp++ = val;
|
|
}
|
|
|
|
/* DMA support */
|
|
|
|
/*
|
|
* Flags used in various bus DMA methods.
|
|
*/
|
|
#define BUS_DMA_WAITOK 0x000 /* safe to sleep (pseudo-flag) */
|
|
#define BUS_DMA_NOWAIT 0x001 /* not safe to sleep */
|
|
#define BUS_DMA_ALLOCNOW 0x002 /* perform resource allocation now */
|
|
#define BUS_DMA_COHERENT 0x004 /* hint: map memory in a coherent way */
|
|
#define BUS_DMA_ZERO 0x008 /* allocate zero'ed memory */
|
|
#define BUS_DMA_BUS1 0x010
|
|
#define BUS_DMA_BUS2 0x020
|
|
#define BUS_DMA_BUS3 0x040
|
|
#define BUS_DMA_BUS4 0x080
|
|
|
|
/* The following two flags are non-standard. */
|
|
#define BUS_DMA_NOWRITE 0x100
|
|
#define BUS_DMA_NOCACHE 0x200
|
|
|
|
/* Forwards needed by prototypes below. */
|
|
struct mbuf;
|
|
struct uio;
|
|
|
|
typedef int bus_dmasync_op_t;
|
|
#define BUS_DMASYNC_PREREAD 1
|
|
#define BUS_DMASYNC_POSTREAD 2
|
|
#define BUS_DMASYNC_PREWRITE 4
|
|
#define BUS_DMASYNC_POSTWRITE 8
|
|
|
|
/*
|
|
* A function that returns 1 if the address cannot be accessed by
|
|
* a device and 0 if it can be.
|
|
*/
|
|
typedef int bus_dma_filter_t(void *, bus_addr_t);
|
|
|
|
typedef struct bus_dma_tag *bus_dma_tag_t;
|
|
typedef struct bus_dmamap *bus_dmamap_t;
|
|
|
|
struct bus_dma_segment {
|
|
bus_addr_t ds_addr; /* DVMA address */
|
|
bus_size_t ds_len; /* length of transfer */
|
|
};
|
|
typedef struct bus_dma_segment bus_dma_segment_t;
|
|
|
|
/*
|
|
* A function that processes a successfully loaded dma map or an error
|
|
* from a delayed load map.
|
|
*/
|
|
typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int);
|
|
|
|
/*
|
|
* Like bus_dmamap_callback but includes map size in bytes. This is
|
|
* defined as a separate interface to maintain compatiiblity for users
|
|
* of bus_dmamap_callback_t--at some point these interfaces should be merged.
|
|
*/
|
|
typedef void bus_dmamap_callback2_t(void *, bus_dma_segment_t *, int, bus_size_t, int);
|
|
|
|
/*
|
|
* A function that performs driver-specific syncronization on behalf of
|
|
* busdma.
|
|
*/
|
|
typedef enum {
|
|
BUS_DMA_LOCK = 0x01,
|
|
BUS_DMA_UNLOCK = 0x02,
|
|
} bus_dma_lock_op_t;
|
|
|
|
typedef void bus_dma_lock_t(void *, bus_dma_lock_op_t);
|
|
|
|
/*
|
|
* Method table for a bus_dma_tag.
|
|
*/
|
|
struct bus_dma_methods {
|
|
int (*dm_dmamap_create)(bus_dma_tag_t, int, bus_dmamap_t *);
|
|
int (*dm_dmamap_destroy)(bus_dma_tag_t, bus_dmamap_t);
|
|
int (*dm_dmamap_load)(bus_dma_tag_t, bus_dmamap_t, void *,
|
|
bus_size_t, bus_dmamap_callback_t *, void *, int);
|
|
int (*dm_dmamap_load_mbuf)(bus_dma_tag_t, bus_dmamap_t,
|
|
struct mbuf *, bus_dmamap_callback2_t *, void *, int);
|
|
int (*dm_dmamap_load_uio)(bus_dma_tag_t, bus_dmamap_t, struct uio *,
|
|
bus_dmamap_callback2_t *, void *, int);
|
|
void (*dm_dmamap_unload)(bus_dma_tag_t, bus_dmamap_t);
|
|
void (*dm_dmamap_sync)(bus_dma_tag_t, bus_dmamap_t,
|
|
bus_dmasync_op_t);
|
|
int (*dm_dmamem_alloc)(bus_dma_tag_t, void **, int, bus_dmamap_t *);
|
|
void (*dm_dmamem_free)(bus_dma_tag_t, void *, bus_dmamap_t);
|
|
};
|
|
|
|
/*
|
|
* bus_dma_tag_t
|
|
*
|
|
* A machine-dependent opaque type describing the implementation of
|
|
* DMA for a given bus.
|
|
*/
|
|
struct bus_dma_tag {
|
|
void *dt_cookie; /* cookie used in the guts */
|
|
bus_dma_tag_t dt_parent;
|
|
bus_size_t dt_alignment;
|
|
bus_size_t dt_boundary;
|
|
bus_addr_t dt_lowaddr;
|
|
bus_addr_t dt_highaddr;
|
|
bus_dma_filter_t *dt_filter;
|
|
void *dt_filterarg;
|
|
bus_size_t dt_maxsize;
|
|
int dt_nsegments;
|
|
bus_size_t dt_maxsegsz;
|
|
int dt_flags;
|
|
int dt_ref_count;
|
|
int dt_map_count;
|
|
bus_dma_lock_t *dt_lockfunc;
|
|
void * *dt_lockfuncarg;
|
|
bus_dma_segment_t *dt_segments;
|
|
|
|
struct bus_dma_methods *dt_mt;
|
|
};
|
|
|
|
int bus_dma_tag_create(bus_dma_tag_t, bus_size_t, bus_size_t, bus_addr_t,
|
|
bus_addr_t, bus_dma_filter_t *, void *, bus_size_t, int, bus_size_t,
|
|
int, bus_dma_lock_t *, void *, bus_dma_tag_t *);
|
|
|
|
int bus_dma_tag_destroy(bus_dma_tag_t);
|
|
|
|
#define bus_dmamap_create(t, f, p) \
|
|
((t)->dt_mt->dm_dmamap_create((t), (f), (p)))
|
|
#define bus_dmamap_destroy(t, p) \
|
|
((t)->dt_mt->dm_dmamap_destroy((t), (p)))
|
|
#define bus_dmamap_load(t, m, p, s, cb, cba, f) \
|
|
((t)->dt_mt->dm_dmamap_load((t), (m), (p), (s), (cb), (cba), (f)))
|
|
#define bus_dmamap_load_mbuf(t, m, mb, cb, cba, f) \
|
|
((t)->dt_mt->dm_dmamap_load_mbuf((t), (m), (mb), (cb), (cba), (f)))
|
|
#define bus_dmamap_load_uio(t, m, ui, cb, cba, f) \
|
|
((t)->dt_mt->dm_dmamap_load_uio((t), (m), (ui), (cb), (cba), (f)))
|
|
#define bus_dmamap_unload(t, p) \
|
|
((t)->dt_mt->dm_dmamap_unload((t), (p)))
|
|
#define bus_dmamap_sync(t, m, op) \
|
|
((t)->dt_mt->dm_dmamap_sync((t), (m), (op)))
|
|
#define bus_dmamem_alloc(t, v, f, m) \
|
|
((t)->dt_mt->dm_dmamem_alloc((t), (v), (f), (m)))
|
|
#define bus_dmamem_free(t, v, m) \
|
|
((t)->dt_mt->dm_dmamem_free((t), (v), (m)))
|
|
|
|
/*
|
|
* Generic helper function for manipulating mutexes.
|
|
*/
|
|
void busdma_lock_mutex(void *arg, bus_dma_lock_op_t op);
|
|
#endif /* !_MACHINE_BUS_H_ */
|