freebsd-dev/sys/alpha/include/bus.h
Warner Losh 06db52b609 Break out the definition of bus_space_{tag,handle}_t and a few other types
into _bus.h to help with name space polution from including all of bus.h.
In a few days, I'll commit changes to the MI code to take advantage of thse
sepration (after I've made sure that these changes don't break anything in
the main tree, I've tested in my trees, but you never know...).

Suggested by: bde (in 2002 or 2003 I think)
Reviewed in principle by: jhb
2005-04-18 21:45:34 +00:00

481 lines
19 KiB
C

/* $NetBSD: bus.h,v 1.12 1997/10/01 08:25:15 fvdl Exp $ */
/*-
* Copyright (c) 1996, 1997 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) 1996 Charles M. Hannum. All rights reserved.
* Copyright (c) 1996 Christopher G. Demetriou. 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Christopher G. Demetriou
* for the NetBSD Project.
* 4. 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.
*/
/* $FreeBSD$ */
#ifndef _ALPHA_BUS_H_
#define _ALPHA_BUS_H_
#include <machine/_bus.h>
#define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF
#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
#define BUS_SPACE_MAXSIZE 0xFFFFFFFFFFFFFFFF
#define BUS_SPACE_MAXADDR_24BIT 0xFFFFFF
#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
/* The largest address space known so far is 40 bits */
#define BUS_SPACE_MAXADDR 0xFFFFFFFFFUL
#define BUS_SPACE_UNRESTRICTED (~0)
/*
* Map a region of device bus space into CPU virtual address space.
*/
static __inline int bus_space_map(bus_space_tag_t t, bus_addr_t addr,
bus_size_t size, int flags,
bus_space_handle_t *bshp);
static __inline int
bus_space_map(bus_space_tag_t t __unused, bus_addr_t addr,
bus_size_t size __unused, int flags __unused,
bus_space_handle_t *bshp)
{
*bshp = addr;
return (0);
}
/*
* Unmap a region of device bus space.
*/
static __inline void bus_space_unmap(bus_space_tag_t t, bus_space_handle_t bsh,
bus_size_t size);
static __inline void
bus_space_unmap(bus_space_tag_t t __unused, bus_space_handle_t bsh __unused,
bus_size_t size __unused)
{
}
/*
* Get a new handle for a subregion of an already-mapped area of bus space.
*/
static __inline 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);
static __inline int
bus_space_subregion(bus_space_tag_t t __unused, bus_space_handle_t bsh,
bus_size_t offset, bus_size_t size __unused,
bus_space_handle_t *nbshp)
{
*nbshp = bsh + offset;
return (0);
}
struct alpha_busspace;
struct alpha_busspace_ops {
u_int8_t (*abo_read_1)(struct alpha_busspace *space, size_t offset);
u_int16_t (*abo_read_2)(struct alpha_busspace *space, size_t offset);
u_int32_t (*abo_read_4)(struct alpha_busspace *space, size_t offset);
void (*abo_read_multi_1)(struct alpha_busspace *space,
size_t offset,
u_int8_t *addr, size_t count);
void (*abo_read_multi_2)(struct alpha_busspace *space,
size_t offset,
u_int16_t *addr, size_t count);
void (*abo_read_multi_4)(struct alpha_busspace *space,
size_t offset,
u_int32_t *addr, size_t count);
void (*abo_read_region_1)(struct alpha_busspace *space,
size_t offset,
u_int8_t *addr, size_t count);
void (*abo_read_region_2)(struct alpha_busspace *space,
size_t offset,
u_int16_t *addr, size_t count);
void (*abo_read_region_4)(struct alpha_busspace *space,
size_t offset,
u_int32_t *addr, size_t count);
void (*abo_write_1)(struct alpha_busspace *space, size_t offset,
u_int8_t value);
void (*abo_write_2)(struct alpha_busspace *space, size_t offset,
u_int16_t value);
void (*abo_write_4)(struct alpha_busspace *space, size_t offset,
u_int32_t value);
void (*abo_write_multi_1)(struct alpha_busspace *space,
size_t offset,
const u_int8_t *addr, size_t count);
void (*abo_write_multi_2)(struct alpha_busspace *space,
size_t offset,
const u_int16_t *addr, size_t count);
void (*abo_write_multi_4)(struct alpha_busspace *space,
size_t offset,
const u_int32_t *addr, size_t count);
void (*abo_write_region_1)(struct alpha_busspace *space,
size_t offset,
const u_int8_t *addr, size_t count);
void (*abo_write_region_2)(struct alpha_busspace *space,
size_t offset,
const u_int16_t *addr, size_t count);
void (*abo_write_region_4)(struct alpha_busspace *space,
size_t offset,
const u_int32_t *addr, size_t count);
void (*abo_set_multi_1)(struct alpha_busspace *space, size_t offset,
u_int8_t value, size_t count);
void (*abo_set_multi_2)(struct alpha_busspace *space, size_t offset,
u_int16_t value, size_t count);
void (*abo_set_multi_4)(struct alpha_busspace *space, size_t offset,
u_int32_t value, size_t count);
void (*abo_set_region_1)(struct alpha_busspace *space,
size_t offset,
u_int8_t value, size_t count);
void (*abo_set_region_2)(struct alpha_busspace *space,
size_t offset,
u_int16_t value, size_t count);
void (*abo_set_region_4)(struct alpha_busspace *space,
size_t offset,
u_int32_t value, size_t count);
void (*abo_copy_region_1)(struct alpha_busspace *space,
size_t offset1, size_t offset2,
size_t count);
void (*abo_copy_region_2)(struct alpha_busspace *space,
size_t offset1, size_t offset2,
size_t count);
void (*abo_copy_region_4)(struct alpha_busspace *space,
size_t offset1, size_t offset2,
size_t count);
void (*abo_barrier)(struct alpha_busspace *space, size_t offset,
size_t len, int flags);
};
struct alpha_busspace {
struct alpha_busspace_ops *ab_ops;
};
/* Back-compat functions for old ISA drivers */
extern struct alpha_busspace *busspace_isa_io;
extern struct alpha_busspace *busspace_isa_mem;
#define inb(o) bus_space_read_1(busspace_isa_io, o, 0)
#define inw(o) bus_space_read_2(busspace_isa_io, o, 0)
#define inl(o) bus_space_read_4(busspace_isa_io, o, 0)
#define outb(o, v) bus_space_write_1(busspace_isa_io, o, 0, v)
#define outw(o, v) bus_space_write_2(busspace_isa_io, o, 0, v)
#define outl(o, v) bus_space_write_4(busspace_isa_io, o, 0, v)
#define readb(o) bus_space_read_1(busspace_isa_mem, o, 0)
#define readw(o) bus_space_read_2(busspace_isa_mem, o, 0)
#define readl(o) bus_space_read_4(busspace_isa_mem, o, 0)
#define writeb(o, v) bus_space_write_1(busspace_isa_mem, o, 0, v)
#define writew(o, v) bus_space_write_2(busspace_isa_mem, o, 0, v)
#define writel(o, v) bus_space_write_4(busspace_isa_mem, o, 0, v)
#define insb(o, a, c) bus_space_read_multi_1(busspace_isa_io, o, 0, \
(void*)(a), c)
#define insw(o, a, c) bus_space_read_multi_2(busspace_isa_io, o, 0, \
(void*)(a), c)
#define insl(o, a, c) bus_space_read_multi_4(busspace_isa_io, o, 0, \
(void*)(a), c)
#define outsb(o, a, c) bus_space_write_multi_1(busspace_isa_io, o, 0, \
(void*)(a), c)
#define outsw(o, a, c) bus_space_write_multi_2(busspace_isa_io, o, 0, \
(void*)(a), c)
#define outsl(o, a, c) bus_space_write_multi_4(busspace_isa_io, o, 0, \
(void*)(a), c)
#define memcpy_fromio(d, s, c) \
bus_space_read_region_1(busspace_isa_mem, (uintptr_t)(s), 0, d, c)
#define memcpy_toio(d, s, c) \
bus_space_write_region_1(busspace_isa_mem, (uintptr_t)(d), 0, s, c)
#define memcpy_io(d, s, c) \
bus_space_copy_region_1(busspace_isa_mem, (uintptr_t)(s), 0, d, 0, c)
#define memset_io(d, v, c) \
bus_space_set_region_1(busspace_isa_mem, (uintptr_t)(d), 0, v, c)
#define memsetw_io(d, v, c) \
bus_space_set_region_2(busspace_isa_mem, (uintptr_t)(d), 0, v, c)
static __inline void
memsetw(void *d, int val, size_t size)
{
u_int16_t *sp = d;
while (size--)
*sp++ = val;
}
void busspace_generic_read_multi_1(struct alpha_busspace *space,
size_t offset,
u_int8_t *addr, size_t count);
void busspace_generic_read_multi_2(struct alpha_busspace *space,
size_t offset,
u_int16_t *addr, size_t count);
void busspace_generic_read_multi_4(struct alpha_busspace *space,
size_t offset,
u_int32_t *addr, size_t count);
void busspace_generic_read_region_1(struct alpha_busspace *space,
size_t offset,
u_int8_t *addr, size_t count);
void busspace_generic_read_region_2(struct alpha_busspace *space,
size_t offset,
u_int16_t *addr, size_t count);
void busspace_generic_read_region_4(struct alpha_busspace *space,
size_t offset,
u_int32_t *addr, size_t count);
void busspace_generic_write_multi_1(struct alpha_busspace *space,
size_t offset,
const u_int8_t *addr, size_t count);
void busspace_generic_write_multi_2(struct alpha_busspace *space,
size_t offset,
const u_int16_t *addr, size_t count);
void busspace_generic_write_multi_4(struct alpha_busspace *space,
size_t offset,
const u_int32_t *addr, size_t count);
void busspace_generic_write_region_1(struct alpha_busspace *space,
size_t offset,
const u_int8_t *addr, size_t count);
void busspace_generic_write_region_2(struct alpha_busspace *space,
size_t offset,
const u_int16_t *addr, size_t count);
void busspace_generic_write_region_4(struct alpha_busspace *space,
size_t offset,
const u_int32_t *addr, size_t count);
void busspace_generic_set_multi_1(struct alpha_busspace *space,
size_t offset,
u_int8_t value, size_t count);
void busspace_generic_set_multi_2(struct alpha_busspace *space,
size_t offset,
u_int16_t value, size_t count);
void busspace_generic_set_multi_4(struct alpha_busspace *space,
size_t offset,
u_int32_t value, size_t count);
void busspace_generic_set_region_1(struct alpha_busspace *space,
size_t offset,
u_int8_t value, size_t count);
void busspace_generic_set_region_2(struct alpha_busspace *space,
size_t offset,
u_int16_t value, size_t count);
void busspace_generic_set_region_4(struct alpha_busspace *space,
size_t offset,
u_int32_t value, size_t count);
void busspace_generic_copy_region_1(struct alpha_busspace *space,
size_t offset1,
size_t offset2,
size_t count);
void busspace_generic_copy_region_2(struct alpha_busspace *space,
size_t offset1,
size_t offset2,
size_t count);
void busspace_generic_copy_region_4(struct alpha_busspace *space,
size_t offset1,
size_t offset2,
size_t count);
void busspace_generic_barrier(struct alpha_busspace *space,
size_t offset, size_t len,
int flags);
#define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */
#define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */
#define bus_space_read_1(t, h, o) \
(t)->ab_ops->abo_read_1(t, (h)+(o))
#define bus_space_read_2(t, h, o) \
(t)->ab_ops->abo_read_2(t, (h)+(o))
#define bus_space_read_4(t, h, o) \
(t)->ab_ops->abo_read_4(t, (h)+(o))
#define bus_space_read_multi_1(t, h, o, a, c) \
(t)->ab_ops->abo_read_multi_1(t, (h)+(o), a, c)
#define bus_space_read_multi_2(t, h, o, a, c) \
(t)->ab_ops->abo_read_multi_2(t, (h)+(o), a, c)
#define bus_space_read_multi_4(t, h, o, a, c) \
(t)->ab_ops->abo_read_multi_4(t, (h)+(o), a, c)
#define bus_space_read_region_1(t, h, o, a, c) \
(t)->ab_ops->abo_read_region_1(t, (h)+(o), a, c)
#define bus_space_read_region_2(t, h, o, a, c) \
(t)->ab_ops->abo_read_region_2(t, (h)+(o), a, c)
#define bus_space_read_region_4(t, h, o, a, c) \
(t)->ab_ops->abo_read_region_4(t, (h)+(o), a, c)
#define bus_space_write_1(t, h, o, v) \
(t)->ab_ops->abo_write_1(t, (h)+(o), v)
#define bus_space_write_2(t, h, o, v) \
(t)->ab_ops->abo_write_2(t, (h)+(o), v)
#define bus_space_write_4(t, h, o, v) \
(t)->ab_ops->abo_write_4(t, (h)+(o), v)
#define bus_space_write_multi_1(t, h, o, a, c) \
(t)->ab_ops->abo_write_multi_1(t, (h)+(o), a, c)
#define bus_space_write_multi_2(t, h, o, a, c) \
(t)->ab_ops->abo_write_multi_2(t, (h)+(o), a, c)
#define bus_space_write_multi_4(t, h, o, a, c) \
(t)->ab_ops->abo_write_multi_4(t, (h)+(o), a, c)
#define bus_space_write_region_1(t, h, o, a, c) \
(t)->ab_ops->abo_write_region_1(t, (h)+(o), a, c)
#define bus_space_write_region_2(t, h, o, a, c) \
(t)->ab_ops->abo_write_region_2(t, (h)+(o), a, c)
#define bus_space_write_region_4(t, h, o, a, c) \
(t)->ab_ops->abo_write_region_4(t, (h)+(o), a, c)
#define bus_space_set_multi_1(t, h, o, v, c) \
(t)->ab_ops->abo_set_multi_1(t, (h)+(o), v, c)
#define bus_space_set_multi_2(t, h, o, v, c) \
(t)->ab_ops->abo_set_multi_2(t, (h)+(o), v, c)
#define bus_space_set_multi_4(t, h, o, v, c) \
(t)->ab_ops->abo_set_multi_4(t, (h)+(o), v, c)
#define bus_space_set_region_1(t, h, o, v, c) \
(t)->ab_ops->abo_set_region_1(t, (h)+(o), v, c)
#define bus_space_set_region_2(t, h, o, v, c) \
(t)->ab_ops->abo_set_region_2(t, (h)+(o), v, c)
#define bus_space_set_region_4(t, h, o, v, c) \
(t)->ab_ops->abo_set_region_4(t, (h)+(o), v, c)
#define bus_space_copy_region_1(t, h1, o1, h2, o2, c) \
(t)->ab_ops->abo_copy_region_1(t, (h1)+(o1), (h2)+(o2), c)
#define bus_space_copy_region_2(t, h1, o1, h2, o2, c) \
(t)->ab_ops->abo_copy_region_2(t, (h1)+(o1), (h2)+(o2), c)
#define bus_space_copy_region_4(t, h1, o1, h2, o2, c) \
(t)->ab_ops->abo_copy_region_4(t, (h1)+(o1), (h2)+(o2), c)
#define bus_space_barrier(t, h, o, l, f) \
(t)->ab_ops->abo_barrier(t, (h)+(o), l, f)
/*
* Stream accesses are the same as normal accesses on alpha; there are no
* supported bus systems with an endianess different from the host one.
*/
#define bus_space_read_stream_1(t, h, o) bus_space_read_1((t), (h), (o))
#define bus_space_read_stream_2(t, h, o) bus_space_read_2((t), (h), (o))
#define bus_space_read_stream_4(t, h, o) bus_space_read_4((t), (h), (o))
#define bus_space_read_multi_stream_1(t, h, o, a, c) \
bus_space_read_multi_1((t), (h), (o), (a), (c))
#define bus_space_read_multi_stream_2(t, h, o, a, c) \
bus_space_read_multi_2((t), (h), (o), (a), (c))
#define bus_space_read_multi_stream_4(t, h, o, a, c) \
bus_space_read_multi_4((t), (h), (o), (a), (c))
#define bus_space_write_stream_1(t, h, o, v) \
bus_space_write_1((t), (h), (o), (v))
#define bus_space_write_stream_2(t, h, o, v) \
bus_space_write_2((t), (h), (o), (v))
#define bus_space_write_stream_4(t, h, o, v) \
bus_space_write_4((t), (h), (o), (v))
#define bus_space_write_multi_stream_1(t, h, o, a, c) \
bus_space_write_multi_1((t), (h), (o), (a), (c))
#define bus_space_write_multi_stream_2(t, h, o, a, c) \
bus_space_write_multi_2((t), (h), (o), (a), (c))
#define bus_space_write_multi_stream_4(t, h, o, a, c) \
bus_space_write_multi_4((t), (h), (o), (a), (c))
#define bus_space_set_multi_stream_1(t, h, o, v, c) \
bus_space_set_multi_1((t), (h), (o), (v), (c))
#define bus_space_set_multi_stream_2(t, h, o, v, c) \
bus_space_set_multi_2((t), (h), (o), (v), (c))
#define bus_space_set_multi_stream_4(t, h, o, v, c) \
bus_space_set_multi_4((t), (h), (o), (v), (c))
#define bus_space_read_region_stream_1(t, h, o, a, c) \
bus_space_read_region_1((t), (h), (o), (a), (c))
#define bus_space_read_region_stream_2(t, h, o, a, c) \
bus_space_read_region_2((t), (h), (o), (a), (c))
#define bus_space_read_region_stream_4(t, h, o, a, c) \
bus_space_read_region_4((t), (h), (o), (a), (c))
#define bus_space_write_region_stream_1(t, h, o, a, c) \
bus_space_write_region_1((t), (h), (o), (a), (c))
#define bus_space_write_region_stream_2(t, h, o, a, c) \
bus_space_write_region_2((t), (h), (o), (a), (c))
#define bus_space_write_region_stream_4(t, h, o, a, c) \
bus_space_write_region_4((t), (h), (o), (a), (c))
#define bus_space_set_region_stream_1(t, h, o, v, c) \
bus_space_set_region_1((t), (h), (o), (v), (c))
#define bus_space_set_region_stream_2(t, h, o, v, c) \
bus_space_set_region_2((t), (h), (o), (v), (c))
#define bus_space_set_region_stream_4(t, h, o, v, c) \
bus_space_set_region_4((t), (h), (o), (v), (c))
#define bus_space_copy_region_stream_1(t, h1, o1, h2, o2, c) \
bus_space_copy_region_1((t), (h1), (o1), (h2), (o2), (c))
#define bus_space_copy_region_stream_2(t, h1, o1, h2, o2, c) \
bus_space_copy_region_2((t), (h1), (o1), (h2), (o2), (c))
#define bus_space_copy_region_stream_4(t, h1, o1, h2, o2, c) \
bus_space_copy_region_4((t), (h1), (o1), (h2), (o2), (c))
#include <machine/bus_dma.h>
#endif /* _ALPHA_BUS_H_ */