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 40uint8_t generic_bs_r_1(void *, bus_space_handle_t, bus_size_t); 41uint16_t generic_bs_r_2(void *, bus_space_handle_t, bus_size_t); 42uint32_t generic_bs_r_4(void *, bus_space_handle_t, bus_size_t); 43uint64_t generic_bs_r_8(void *, bus_space_handle_t, bus_size_t); 44 45void generic_bs_rm_1(void *, bus_space_handle_t, bus_size_t, uint8_t *, 46 bus_size_t); 47void generic_bs_rm_2(void *, bus_space_handle_t, bus_size_t, uint16_t *, 48 bus_size_t); 49void generic_bs_rm_4(void *, bus_space_handle_t, bus_size_t, uint32_t *, 50 bus_size_t); 51void generic_bs_rm_8(void *, bus_space_handle_t, bus_size_t, uint64_t *, 52 bus_size_t); 53 54void generic_bs_rr_1(void *, bus_space_handle_t, bus_size_t, uint8_t *, 55 bus_size_t); 56void generic_bs_rr_2(void *, bus_space_handle_t, bus_size_t, uint16_t *, 57 bus_size_t); 58void generic_bs_rr_4(void *, bus_space_handle_t, bus_size_t, uint32_t *, 59 bus_size_t); 60void generic_bs_rr_8(void *, bus_space_handle_t, bus_size_t, uint64_t *, 61 bus_size_t); 62 63void generic_bs_w_1(void *, bus_space_handle_t, bus_size_t, uint8_t); 64void generic_bs_w_2(void *, bus_space_handle_t, bus_size_t, uint16_t); 65void generic_bs_w_4(void *, bus_space_handle_t, bus_size_t, uint32_t); 66void generic_bs_w_8(void *, bus_space_handle_t, bus_size_t, uint64_t); 67 68void generic_bs_wm_1(void *, bus_space_handle_t, bus_size_t, const uint8_t *, 69 bus_size_t); 70void generic_bs_wm_2(void *, bus_space_handle_t, bus_size_t, const uint16_t *, 71 bus_size_t); 72void generic_bs_wm_4(void *, bus_space_handle_t, bus_size_t, const uint32_t *, 73 bus_size_t); 74void generic_bs_wm_8(void *, bus_space_handle_t, bus_size_t, const uint64_t *, 75 bus_size_t); 76 77void generic_bs_wr_1(void *, bus_space_handle_t, bus_size_t, const uint8_t *, 78 bus_size_t); 79void generic_bs_wr_2(void *, bus_space_handle_t, bus_size_t, const uint16_t *, 80 bus_size_t); 81void generic_bs_wr_4(void *, bus_space_handle_t, bus_size_t, const uint32_t *, 82 bus_size_t); 83void generic_bs_wr_8(void *, bus_space_handle_t, bus_size_t, const uint64_t *, 84 bus_size_t); 85 86int generic_bs_peek_1(void *, bus_space_handle_t, bus_size_t , uint8_t *); 87int generic_bs_peek_2(void *, bus_space_handle_t, bus_size_t , uint16_t *); 88int generic_bs_peek_4(void *, bus_space_handle_t, bus_size_t , uint32_t *); 89int generic_bs_peek_8(void *, bus_space_handle_t, bus_size_t , uint64_t *); 90 91int generic_bs_poke_1(void *, bus_space_handle_t, bus_size_t, uint8_t); 92int generic_bs_poke_2(void *, bus_space_handle_t, bus_size_t, uint16_t); 93int generic_bs_poke_4(void *, bus_space_handle_t, bus_size_t, uint32_t); 94int generic_bs_poke_8(void *, bus_space_handle_t, bus_size_t, uint64_t); 95 96static int 97generic_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int flags, 98 bus_space_handle_t *bshp) 99{ 100 void *va; 101 102 va = pmap_mapdev(bpa, size); 103 if (va == NULL) 104 return (ENOMEM); 105 *bshp = (bus_space_handle_t)va; 106 return (0); 107} 108 109static void 110generic_bs_unmap(void *t, bus_space_handle_t bsh, bus_size_t size) 111{ 112 113 pmap_unmapdev(bsh, size); 114} 115 116static void 117generic_bs_barrier(void *t, bus_space_handle_t bsh, bus_size_t offset, 118 bus_size_t size, int flags) 119{ 120} 121 122static int 123generic_bs_subregion(void *t, bus_space_handle_t bsh, bus_size_t offset, 124 bus_size_t size, bus_space_handle_t *nbshp) 125{ 126 127 *nbshp = bsh + offset; 128 return (0); 129} 130 131/* 132 * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described 133 * by tag/handle starting at `offset'. 134 */ 135static void 136generic_bs_sr_1(void *t, bus_space_handle_t bsh, 137 bus_size_t offset, uint8_t value, size_t count) 138{ 139 140 for (; count != 0; count--, offset++) 141 generic_bs_w_1(t, bsh, offset, value); 142} 143 144static void 145generic_bs_sr_2(void *t, bus_space_handle_t bsh, 146 bus_size_t offset, uint16_t value, size_t count) 147{ 148 149 for (; count != 0; count--, offset += 2) 150 generic_bs_w_2(t, bsh, offset, value); 151} 152 153static void 154generic_bs_sr_4(void *t, bus_space_handle_t bsh, 155 bus_size_t offset, uint32_t value, size_t count) 156{ 157 158 for (; count != 0; count--, offset += 4) 159 generic_bs_w_4(t, bsh, offset, value); 160} 161 162static void 163generic_bs_sr_8(void *t, bus_space_handle_t bsh, bus_size_t offset, 164 uint64_t value, size_t count) 165{ 166 167 for (; count != 0; count--, offset += 8) 168 generic_bs_w_8(t, bsh, offset, value); 169} 170 171struct bus_space memmap_bus = { 172 /* cookie */ 173 .bs_cookie = NULL, 174 175 /* mapping/unmapping */ 176 .bs_map = generic_bs_map, 177 .bs_unmap = generic_bs_unmap, 178 .bs_subregion = generic_bs_subregion, 179 180 /* allocation/deallocation */ 181 .bs_alloc = NULL, 182 .bs_free = NULL, 183 184 /* barrier */ 185 .bs_barrier = generic_bs_barrier, 186 187 /* read single */ 188 .bs_r_1 = generic_bs_r_1, 189 .bs_r_2 = generic_bs_r_2, 190 .bs_r_4 = generic_bs_r_4, 191 .bs_r_8 = generic_bs_r_8, 192 193 /* read multiple */ 194 .bs_rm_1 = generic_bs_rm_1, 195 .bs_rm_2 = generic_bs_rm_2, 196 .bs_rm_4 = generic_bs_rm_4, 197 .bs_rm_8 = generic_bs_rm_8, 198 199 /* read region */ 200 .bs_rr_1 = generic_bs_rr_1, 201 .bs_rr_2 = generic_bs_rr_2, 202 .bs_rr_4 = generic_bs_rr_4, 203 .bs_rr_8 = generic_bs_rr_8, 204 205 /* write single */ 206 .bs_w_1 = generic_bs_w_1, 207 .bs_w_2 = generic_bs_w_2, 208 .bs_w_4 = generic_bs_w_4, 209 .bs_w_8 = generic_bs_w_8, 210 211 /* write multiple */ 212 .bs_wm_1 = generic_bs_wm_1, 213 .bs_wm_2 = generic_bs_wm_2, 214 .bs_wm_4 = generic_bs_wm_4, 215 .bs_wm_8 = generic_bs_wm_8, 216 217 /* write region */ 218 .bs_wr_1 = generic_bs_wr_1, 219 .bs_wr_2 = generic_bs_wr_2, 220 .bs_wr_4 = generic_bs_wr_4, 221 .bs_wr_8 = generic_bs_wr_8, 222 223 /* set multiple */ 224 .bs_sm_1 = NULL, 225 .bs_sm_2 = NULL, 226 .bs_sm_4 = NULL, 227 .bs_sm_8 = NULL, 228 229 /* set region */ 230 .bs_sr_1 = generic_bs_sr_1, 231 .bs_sr_2 = generic_bs_sr_2, 232 .bs_sr_4 = generic_bs_sr_4, 233 .bs_sr_8 = generic_bs_sr_8, 234 235 /* copy */ 236 .bs_c_1 = NULL, 237 .bs_c_2 = NULL, 238 .bs_c_4 = NULL, 239 .bs_c_8 = NULL, 240 241 /* read single stream */ 242 .bs_r_1_s = NULL, 243 .bs_r_2_s = NULL, 244 .bs_r_4_s = NULL, 245 .bs_r_8_s = NULL, 246 247 /* read multiple stream */ 248 .bs_rm_1_s = generic_bs_rm_1, 249 .bs_rm_2_s = generic_bs_rm_2, 250 .bs_rm_4_s = generic_bs_rm_4, 251 .bs_rm_8_s = generic_bs_rm_8, 252 253 /* read region stream */ 254 .bs_rr_1_s = NULL, 255 .bs_rr_2_s = NULL, 256 .bs_rr_4_s = NULL, 257 .bs_rr_8_s = NULL, 258 259 /* write single stream */ 260 .bs_w_1_s = NULL, 261 .bs_w_2_s = NULL, 262 .bs_w_4_s = NULL, 263 .bs_w_8_s = NULL, 264 265 /* write multiple stream */ 266 .bs_wm_1_s = generic_bs_wm_1, 267 .bs_wm_2_s = generic_bs_wm_2, 268 .bs_wm_4_s = generic_bs_wm_4, 269 .bs_wm_8_s = generic_bs_wm_8, 270 271 /* write region stream */ 272 .bs_wr_1_s = NULL, 273 .bs_wr_2_s = NULL, 274 .bs_wr_4_s = NULL, 275 .bs_wr_8_s = NULL, 276 277 /* peek */ 278 .bs_peek_1 = generic_bs_peek_1, 279 .bs_peek_2 = generic_bs_peek_2, 280 .bs_peek_4 = generic_bs_peek_4, 281 .bs_peek_8 = generic_bs_peek_8, 282 283 /* poke */ 284 .bs_poke_1 = generic_bs_poke_1, 285 .bs_poke_2 = generic_bs_poke_2, 286 .bs_poke_4 = generic_bs_poke_4, 287 .bs_poke_8 = generic_bs_poke_8, 288}; 289 290#ifdef FDT 291bus_space_tag_t fdtbus_bs_tag = &memmap_bus; 292#endif 293