2 * Copyright (c) 2014 Andrew Turner
3 * Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
6 * Portions of this software were developed by SRI International and the
7 * University of Cambridge Computer Laboratory under DARPA/AFRL contract
8 * FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
10 * Portions of this software were developed by the University of Cambridge
11 * Computer Laboratory as part of the CTSRD Project, with support from the
12 * UK Higher Education Innovation Fund (HEIF).
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in the
21 * documentation and/or other materials provided with the distribution.
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 #include "opt_platform.h"
38 #include <sys/param.h>
42 #include <machine/bus.h>
44 uint8_t generic_bs_r_1(void *, bus_space_handle_t, bus_size_t);
45 uint16_t generic_bs_r_2(void *, bus_space_handle_t, bus_size_t);
46 uint32_t generic_bs_r_4(void *, bus_space_handle_t, bus_size_t);
47 uint64_t generic_bs_r_8(void *, bus_space_handle_t, bus_size_t);
49 void generic_bs_rm_1(void *, bus_space_handle_t, bus_size_t, uint8_t *,
51 void generic_bs_rm_2(void *, bus_space_handle_t, bus_size_t, uint16_t *,
53 void generic_bs_rm_4(void *, bus_space_handle_t, bus_size_t, uint32_t *,
55 void generic_bs_rm_8(void *, bus_space_handle_t, bus_size_t, uint64_t *,
58 void generic_bs_rr_1(void *, bus_space_handle_t, bus_size_t, uint8_t *,
60 void generic_bs_rr_2(void *, bus_space_handle_t, bus_size_t, uint16_t *,
62 void generic_bs_rr_4(void *, bus_space_handle_t, bus_size_t, uint32_t *,
64 void generic_bs_rr_8(void *, bus_space_handle_t, bus_size_t, uint64_t *,
67 void generic_bs_w_1(void *, bus_space_handle_t, bus_size_t, uint8_t);
68 void generic_bs_w_2(void *, bus_space_handle_t, bus_size_t, uint16_t);
69 void generic_bs_w_4(void *, bus_space_handle_t, bus_size_t, uint32_t);
70 void generic_bs_w_8(void *, bus_space_handle_t, bus_size_t, uint64_t);
72 void generic_bs_wm_1(void *, bus_space_handle_t, bus_size_t, const uint8_t *,
74 void generic_bs_wm_2(void *, bus_space_handle_t, bus_size_t, const uint16_t *,
76 void generic_bs_wm_4(void *, bus_space_handle_t, bus_size_t, const uint32_t *,
78 void generic_bs_wm_8(void *, bus_space_handle_t, bus_size_t, const uint64_t *,
81 void generic_bs_wr_1(void *, bus_space_handle_t, bus_size_t, const uint8_t *,
83 void generic_bs_wr_2(void *, bus_space_handle_t, bus_size_t, const uint16_t *,
85 void generic_bs_wr_4(void *, bus_space_handle_t, bus_size_t, const uint32_t *,
87 void generic_bs_wr_8(void *, bus_space_handle_t, bus_size_t, const uint64_t *,
91 generic_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int flags,
92 bus_space_handle_t *bshp)
96 va = pmap_mapdev(bpa, size);
99 *bshp = (bus_space_handle_t)va;
104 generic_bs_unmap(void *t, bus_space_handle_t bsh, bus_size_t size)
107 pmap_unmapdev((void *)bsh, size);
111 generic_bs_barrier(void *t, bus_space_handle_t bsh, bus_size_t offset,
112 bus_size_t size, int flags)
117 generic_bs_subregion(void *t, bus_space_handle_t bsh, bus_size_t offset,
118 bus_size_t size, bus_space_handle_t *nbshp)
121 *nbshp = bsh + offset;
125 struct bus_space memmap_bus = {
129 /* mapping/unmapping */
130 .bs_map = generic_bs_map,
131 .bs_unmap = generic_bs_unmap,
132 .bs_subregion = generic_bs_subregion,
134 /* allocation/deallocation */
139 .bs_barrier = generic_bs_barrier,
142 .bs_r_1 = generic_bs_r_1,
143 .bs_r_2 = generic_bs_r_2,
144 .bs_r_4 = generic_bs_r_4,
145 .bs_r_8 = generic_bs_r_8,
154 .bs_w_1 = generic_bs_w_1,
155 .bs_w_2 = generic_bs_w_2,
156 .bs_w_4 = generic_bs_w_4,
157 .bs_w_8 = generic_bs_w_8,
189 /* read single stream */
195 /* read multiple stream */
201 /* read region stream */
207 /* write single stream */
213 /* write multiple stream */
219 /* write region stream */
227 bus_space_tag_t fdtbus_bs_tag = &memmap_bus;