1 /*- 2 * Copyright (c) 2014 Andrew Turner 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 */ 27 28 #define KCSAN_RUNTIME 29 30 #include "opt_platform.h" 31 32 #include <sys/param.h> 33 __FBSDID("$FreeBSD$"); 34 35 #include <vm/vm.h> 36 #include <vm/pmap.h> 37 38 #include <machine/bus.h> 39 40 uint8_t generic_bs_r_1(void *, bus_space_handle_t, bus_size_t); 41 uint16_t generic_bs_r_2(void *, bus_space_handle_t, bus_size_t); 42 uint32_t generic_bs_r_4(void *, bus_space_handle_t, bus_size_t); 43 uint64_t generic_bs_r_8(void *, bus_space_handle_t, bus_size_t); 44 45 void generic_bs_rm_1(void *, bus_space_handle_t, bus_size_t, uint8_t *, 46 bus_size_t); 47 void generic_bs_rm_2(void *, bus_space_handle_t, bus_size_t, uint16_t *, 48 bus_size_t); 49 void generic_bs_rm_4(void *, bus_space_handle_t, bus_size_t, uint32_t *, 50 bus_size_t); 51 void generic_bs_rm_8(void *, bus_space_handle_t, bus_size_t, uint64_t *, 52 bus_size_t); 53 54 void generic_bs_rr_1(void *, bus_space_handle_t, bus_size_t, uint8_t *, 55 bus_size_t); 56 void generic_bs_rr_2(void *, bus_space_handle_t, bus_size_t, uint16_t *, 57 bus_size_t); 58 void generic_bs_rr_4(void *, bus_space_handle_t, bus_size_t, uint32_t *, 59 bus_size_t); 60 void generic_bs_rr_8(void *, bus_space_handle_t, bus_size_t, uint64_t *, 61 bus_size_t); 62 63 void generic_bs_w_1(void *, bus_space_handle_t, bus_size_t, uint8_t); 64 void generic_bs_w_2(void *, bus_space_handle_t, bus_size_t, uint16_t); 65 void generic_bs_w_4(void *, bus_space_handle_t, bus_size_t, uint32_t); 66 void generic_bs_w_8(void *, bus_space_handle_t, bus_size_t, uint64_t); 67 68 void generic_bs_wm_1(void *, bus_space_handle_t, bus_size_t, const uint8_t *, 69 bus_size_t); 70 void generic_bs_wm_2(void *, bus_space_handle_t, bus_size_t, const uint16_t *, 71 bus_size_t); 72 void generic_bs_wm_4(void *, bus_space_handle_t, bus_size_t, const uint32_t *, 73 bus_size_t); 74 void generic_bs_wm_8(void *, bus_space_handle_t, bus_size_t, const uint64_t *, 75 bus_size_t); 76 77 void generic_bs_wr_1(void *, bus_space_handle_t, bus_size_t, const uint8_t *, 78 bus_size_t); 79 void generic_bs_wr_2(void *, bus_space_handle_t, bus_size_t, const uint16_t *, 80 bus_size_t); 81 void generic_bs_wr_4(void *, bus_space_handle_t, bus_size_t, const uint32_t *, 82 bus_size_t); 83 void generic_bs_wr_8(void *, bus_space_handle_t, bus_size_t, const uint64_t *, 84 bus_size_t); 85 86 static int 87 generic_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int flags, 88 bus_space_handle_t *bshp) 89 { 90 void *va; 91 92 va = pmap_mapdev(bpa, size); 93 if (va == NULL) 94 return (ENOMEM); 95 *bshp = (bus_space_handle_t)va; 96 return (0); 97 } 98 99 static void 100 generic_bs_unmap(void *t, bus_space_handle_t bsh, bus_size_t size) 101 { 102 103 pmap_unmapdev(bsh, size); 104 } 105 106 static void 107 generic_bs_barrier(void *t, bus_space_handle_t bsh, bus_size_t offset, 108 bus_size_t size, int flags) 109 { 110 } 111 112 static int 113 generic_bs_subregion(void *t, bus_space_handle_t bsh, bus_size_t offset, 114 bus_size_t size, bus_space_handle_t *nbshp) 115 { 116 117 *nbshp = bsh + offset; 118 return (0); 119 } 120 121 struct bus_space memmap_bus = { 122 /* cookie */ 123 .bs_cookie = NULL, 124 125 /* mapping/unmapping */ 126 .bs_map = generic_bs_map, 127 .bs_unmap = generic_bs_unmap, 128 .bs_subregion = generic_bs_subregion, 129 130 /* allocation/deallocation */ 131 .bs_alloc = NULL, 132 .bs_free = NULL, 133 134 /* barrier */ 135 .bs_barrier = generic_bs_barrier, 136 137 /* read single */ 138 .bs_r_1 = generic_bs_r_1, 139 .bs_r_2 = generic_bs_r_2, 140 .bs_r_4 = generic_bs_r_4, 141 .bs_r_8 = generic_bs_r_8, 142 143 /* read multiple */ 144 .bs_rm_1 = generic_bs_rm_1, 145 .bs_rm_2 = generic_bs_rm_2, 146 .bs_rm_4 = generic_bs_rm_4, 147 .bs_rm_8 = generic_bs_rm_8, 148 149 /* read region */ 150 .bs_rr_1 = generic_bs_rr_1, 151 .bs_rr_2 = generic_bs_rr_2, 152 .bs_rr_4 = generic_bs_rr_4, 153 .bs_rr_8 = generic_bs_rr_8, 154 155 /* write single */ 156 .bs_w_1 = generic_bs_w_1, 157 .bs_w_2 = generic_bs_w_2, 158 .bs_w_4 = generic_bs_w_4, 159 .bs_w_8 = generic_bs_w_8, 160 161 /* write multiple */ 162 .bs_wm_1 = generic_bs_wm_1, 163 .bs_wm_2 = generic_bs_wm_2, 164 .bs_wm_4 = generic_bs_wm_4, 165 .bs_wm_8 = generic_bs_wm_8, 166 167 /* write region */ 168 .bs_wr_1 = generic_bs_wr_1, 169 .bs_wr_2 = generic_bs_wr_2, 170 .bs_wr_4 = generic_bs_wr_4, 171 .bs_wr_8 = generic_bs_wr_8, 172 173 /* set multiple */ 174 .bs_sm_1 = NULL, 175 .bs_sm_2 = NULL, 176 .bs_sm_4 = NULL, 177 .bs_sm_8 = NULL, 178 179 /* set region */ 180 .bs_sr_1 = NULL, 181 .bs_sr_2 = NULL, 182 .bs_sr_4 = NULL, 183 .bs_sr_8 = NULL, 184 185 /* copy */ 186 .bs_c_1 = NULL, 187 .bs_c_2 = NULL, 188 .bs_c_4 = NULL, 189 .bs_c_8 = NULL, 190 191 /* read single stream */ 192 .bs_r_1_s = NULL, 193 .bs_r_2_s = NULL, 194 .bs_r_4_s = NULL, 195 .bs_r_8_s = NULL, 196 197 /* read multiple stream */ 198 .bs_rm_1_s = generic_bs_rm_1, 199 .bs_rm_2_s = generic_bs_rm_2, 200 .bs_rm_4_s = generic_bs_rm_4, 201 .bs_rm_8_s = generic_bs_rm_8, 202 203 /* read region stream */ 204 .bs_rr_1_s = NULL, 205 .bs_rr_2_s = NULL, 206 .bs_rr_4_s = NULL, 207 .bs_rr_8_s = NULL, 208 209 /* write single stream */ 210 .bs_w_1_s = NULL, 211 .bs_w_2_s = NULL, 212 .bs_w_4_s = NULL, 213 .bs_w_8_s = NULL, 214 215 /* write multiple stream */ 216 .bs_wm_1_s = generic_bs_wm_1, 217 .bs_wm_2_s = generic_bs_wm_2, 218 .bs_wm_4_s = generic_bs_wm_4, 219 .bs_wm_8_s = generic_bs_wm_8, 220 221 /* write region stream */ 222 .bs_wr_1_s = NULL, 223 .bs_wr_2_s = NULL, 224 .bs_wr_4_s = NULL, 225 .bs_wr_8_s = NULL, 226 }; 227 228 #ifdef FDT 229 bus_space_tag_t fdtbus_bs_tag = &memmap_bus; 230 #endif 231