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|
/* $OpenBSD: bus.h,v 1.2 2005/02/13 03:37:14 jsg Exp $ */
/* $NetBSD: bus.h,v 1.6 2001/12/02 01:20:33 gmcgarry Exp $ */
/*-
* Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Copyright (C) 1997 Scott Reynolds. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _HP300_BUS_H_
#define _HP300_BUS_H_
/*
* Bus codes
*/
#define HP300_BUS_INTIO 1
#define HP300_BUS_DIO 2
#define HP300_BUS_SGC 3
/*
* How to build bus space tags, and break them
*/
#define HP300_BUS_TAG(bus, code) ((bus) << 8 | (code))
#define HP300_TAG_BUS(tag) ((tag) >> 8)
#define HP300_TAG_CODE(tag) ((tag) & 0xff)
/*
* Bus address and size types
*/
typedef u_long bus_addr_t;
typedef u_long bus_size_t;
/*
* Access methods for bus resources and address space.
*/
typedef int bus_space_tag_t;
typedef u_long bus_space_handle_t;
#define BUS_SPACE_MAP_CACHEABLE 0x01
#define BUS_SPACE_MAP_LINEAR 0x02
#define BUS_SPACE_MAP_PREFETCHABLE 0x04
int bus_space_map(bus_space_tag_t, bus_addr_t, bus_size_t,
int, bus_space_handle_t *);
void bus_space_unmap(bus_space_tag_t, bus_space_handle_t, bus_size_t);
int bus_space_subregion(bus_space_tag_t t, bus_space_handle_t bsh,
bus_size_t offset, bus_size_t size, bus_space_handle_t *nbshp);
int bus_space_alloc(bus_space_tag_t t, bus_addr_t rstart,
bus_addr_t rend, bus_size_t size, bus_size_t align,
bus_size_t boundary, int cacheable, bus_addr_t *addrp,
bus_space_handle_t *bshp);
void bus_space_free(bus_space_tag_t t, bus_space_handle_t bsh,
bus_size_t size);
#define bus_space_vaddr(t, h) (void *)(h)
/*
* Probe the bus at t/bsh/offset, using sz as the size of the load.
*
* This is a machine-dependent extension, and is not to be used by
* machine-independent code.
*/
int hp300_bus_space_probe(bus_space_tag_t t,
bus_space_handle_t bsh, bus_size_t offset, int sz);
#define bus_space_read_1(t, h, o) \
((void) t, (*(volatile u_int8_t *)((h) + (o))))
#define bus_space_read_2(t, h, o) \
((void) t, (*(volatile u_int16_t *)((h) + (o))))
#define bus_space_read_4(t, h, o) \
((void) t, (*(volatile u_int32_t *)((h) + (o))))
#define bus_space_read_multi_1(t, h, o, a, c) do { \
(void) t; \
__asm __volatile (" \
movl %0,a0 ; \
movl %1,a1 ; \
movl %2,d0 ; \
1: movb a0@,a1@+ ; \
subql #1,d0 ; \
jne 1b" : \
: \
"r" ((h) + (o)), "g" (a), "g" (c) : \
"a0","a1","d0"); \
} while (0)
#define bus_space_read_multi_2(t, h, o, a, c) do { \
(void) t; \
__asm __volatile (" \
movl %0,a0 ; \
movl %1,a1 ; \
movl %2,d0 ; \
1: movw a0@,a1@+ ; \
subql #1,d0 ; \
jne 1b" : \
: \
"r" ((h) + (o)), "g" (a), "g" (c) : \
"a0","a1","d0"); \
} while (0)
#define bus_space_read_multi_4(t, h, o, a, c) do { \
(void) t; \
__asm __volatile (" \
movl %0,a0 ; \
movl %1,a1 ; \
movl %2,d0 ; \
1: movl a0@,a1@+ ; \
subql #1,d0 ; \
jne 1b" : \
: \
"r" ((h) + (o)), "g" (a), "g" (c) : \
"a0","a1","d0"); \
} while (0)
#define bus_space_read_region_1(t, h, o, a, c) do { \
(void) t; \
__asm __volatile (" \
movl %0,a0 ; \
movl %1,a1 ; \
movl %2,d0 ; \
1: movb a0@+,a1@+ ; \
subql #1,d0 ; \
jne 1b" : \
: \
"r" ((h) + (o)), "g" (a), "g" (c) : \
"a0","a1","d0"); \
} while (0)
#define bus_space_read_region_2(t, h, o, a, c) do { \
(void) t; \
__asm __volatile (" \
movl %0,a0 ; \
movl %1,a1 ; \
movl %2,d0 ; \
1: movw a0@+,a1@+ ; \
subql #1,d0 ; \
jne 1b" : \
: \
"r" ((h) + (o)), "g" (a), "g" (c) : \
"a0","a1","d0"); \
} while (0)
#define bus_space_read_region_4(t, h, o, a, c) do { \
(void) t; \
__asm __volatile (" \
movl %0,a0 ; \
movl %1,a1 ; \
movl %2,d0 ; \
1: movl a0@+,a1@+ ; \
subql #1,d0 ; \
jne 1b" : \
: \
"r" ((h) + (o)), "g" (a), "g" (c) : \
"a0","a1","d0"); \
} while (0)
#define bus_space_write_1(t, h, o, v) \
((void) t, ((void)(*(volatile u_int8_t *)((h) + (o)) = (v))))
#define bus_space_write_2(t, h, o, v) \
((void) t, ((void)(*(volatile u_int16_t *)((h) + (o)) = (v))))
#define bus_space_write_4(t, h, o, v) \
((void) t, ((void)(*(volatile u_int32_t *)((h) + (o)) = (v))))
#define bus_space_write_multi_1(t, h, o, a, c) do { \
(void) t; \
__asm __volatile (" \
movl %0,a0 ; \
movl %1,a1 ; \
movl %2,d0 ; \
1: movb a1@+,a0@ ; \
subql #1,d0 ; \
jne 1b" : \
: \
"r" ((h) + (o)), "g" (a), "g" (c) : \
"a0","a1","d0"); \
} while (0)
#define bus_space_write_multi_2(t, h, o, a, c) do { \
(void) t; \
__asm __volatile (" \
movl %0,a0 ; \
movl %1,a1 ; \
movl %2,d0 ; \
1: movw a1@+,a0@ ; \
subql #1,d0 ; \
jne 1b" : \
: \
"r" ((h) + (o)), "g" (a), "g" (c) : \
"a0","a1","d0"); \
} while (0)
#define bus_space_write_multi_4(t, h, o, a, c) do { \
(void) t; \
__asm __volatile (" \
movl %0,a0 ; \
movl %1,a1 ; \
movl %2,d0 ; \
1: movl a1@+,a0@ ; \
subql #1,d0 ; \
jne 1b" : \
: \
"r" ((h) + (o)), "g" (a), "g" (c) : \
"a0","a1","d0"); \
} while (0)
#define bus_space_write_region_1(t, h, o, a, c) do { \
(void) t; \
__asm __volatile (" \
movl %0,a0 ; \
movl %1,a1 ; \
movl %2,d0 ; \
1: movb a1@+,a0@+ ; \
subql #1,d0 ; \
jne 1b" : \
: \
"r" ((h) + (o)), "g" (a), "g" (c) : \
"a0","a1","d0"); \
} while (0)
#define bus_space_write_region_2(t, h, o, a, c) do { \
(void) t; \
__asm __volatile (" \
movl %0,a0 ; \
movl %1,a1 ; \
movl %2,d0 ; \
1: movw a1@+,a0@+ ; \
subql #1,d0 ; \
jne 1b" : \
: \
"r" ((h) + (o)), "g" (a), "g" (c) : \
"a0","a1","d0"); \
} while (0)
#define bus_space_write_region_4(t, h, o, a, c) do { \
(void) t; \
__asm __volatile (" \
movl %0,a0 ; \
movl %1,a1 ; \
movl %2,d0 ; \
1: movl a1@+,a0@+ ; \
subql #1,d0 ; \
jne 1b" : \
: \
"r" ((h) + (o)), "g" (a), "g" (c) : \
"a0","a1","d0"); \
} while (0)
#define bus_space_set_multi_1(t, h, o, val, c) do { \
(void) t; \
__asm __volatile (" \
movl %0,a0 ; \
movl %1,d1 ; \
movl %2,d0 ; \
1: movb d1,a0@ ; \
subql #1,d0 ; \
jne 1b" : \
: \
"r" ((h) + (o)), "g" (val), "g" (c) : \
"a0","d0","d1"); \
} while (0)
#define bus_space_set_multi_2(t, h, o, val, c) do { \
(void) t; \
__asm __volatile (" \
movl %0,a0 ; \
movl %1,d1 ; \
movl %2,d0 ; \
1: movw d1,a0@ ; \
subql #1,d0 ; \
jne 1b" : \
: \
"r" ((h) + (o)), "g" (val), "g" (c) : \
"a0","d0","d1"); \
} while (0)
#define bus_space_set_multi_4(t, h, o, val, c) do { \
(void) t; \
__asm __volatile (" \
movl %0,a0 ; \
movl %1,d1 ; \
movl %2,d0 ; \
1: movl d1,a0@ ; \
subql #1,d0 ; \
jne 1b" : \
: \
"r" ((h) + (o)), "g" (val), "g" (c) : \
"a0","d0","d1"); \
} while (0)
#define bus_space_set_region_1(t, h, o, val, c) do { \
(void) t; \
__asm __volatile (" \
movl %0,a0 ; \
movl %1,d1 ; \
movl %2,d0 ; \
1: movb d1,a0@+ ; \
subql #1,d0 ; \
jne 1b" : \
: \
"r" ((h) + (o)), "g" (val), "g" (c) : \
"a0","d0","d1"); \
} while (0)
#define bus_space_set_region_2(t, h, o, val, c) do { \
(void) t; \
__asm __volatile (" \
movl %0,a0 ; \
movl %1,d1 ; \
movl %2,d0 ; \
1: movw d1,a0@+ ; \
subql #1,d0 ; \
jne 1b" : \
: \
"r" ((h) + (o)), "g" (val), "g" (c) : \
"a0","d0","d1"); \
} while (0)
#define bus_space_set_region_4(t, h, o, val, c) do { \
(void) t; \
__asm __volatile (" \
movl %0,a0 ; \
movl %1,d1 ; \
movl %2,d0 ; \
1: movl d1,a0@+ ; \
subql #1,d0 ; \
jne 1b" : \
: \
"r" ((h) + (o)), "g" (val), "g" (c) : \
"a0","d0","d1"); \
} while (0)
#define __HP300_copy_region_N(BYTES) \
static __inline void __CONCAT(bus_space_copy_region_,BYTES) \
(bus_space_tag_t, \
bus_space_handle_t bsh1, bus_size_t off1, \
bus_space_handle_t bsh2, bus_size_t off2, \
bus_size_t count); \
\
static __inline void \
__CONCAT(bus_space_copy_region_,BYTES)(t, h1, o1, h2, o2, c) \
bus_space_tag_t t; \
bus_space_handle_t h1, h2; \
bus_size_t o1, o2, c; \
{ \
bus_size_t o; \
\
if ((h1 + o1) >= (h2 + o2)) { \
/* src after dest: copy forward */ \
for (o = 0; c != 0; c--, o += BYTES) \
__CONCAT(bus_space_write_,BYTES)(t, h2, o2 + o, \
__CONCAT(bus_space_read_,BYTES)(t, h1, o1 + o)); \
} else { \
/* dest after src: copy backwards */ \
for (o = (c - 1) * BYTES; c != 0; c--, o -= BYTES) \
__CONCAT(bus_space_write_,BYTES)(t, h2, o2 + o, \
__CONCAT(bus_space_read_,BYTES)(t, h1, o1 + o)); \
} \
}
__HP300_copy_region_N(1)
__HP300_copy_region_N(2)
__HP300_copy_region_N(4)
#undef __HP300_copy_region_N
/*
* Note: the 680x0 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 */
#define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t)
#endif /* _HP300_BUS_H_ */
|
