mvsoc_space.c revision 1.5.2.1
1 /* $NetBSD: mvsoc_space.c,v 1.5.2.1 2013/06/23 06:20:00 tls Exp $ */ 2 /* 3 * Copyright (c) 2007 KIYOHARA Takashi 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __KERNEL_RCSID(0, "$NetBSD: mvsoc_space.c,v 1.5.2.1 2013/06/23 06:20:00 tls Exp $"); 30 31 #include "opt_mvsoc.h" 32 #include "mvpex.h" 33 #include "gtpci.h" 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 38 #include <uvm/uvm_extern.h> 39 40 #include <sys/bus.h> 41 42 #include <arm/marvell/mvsocreg.h> 43 #include <arm/marvell/mvsocvar.h> 44 45 46 /* Proto types for all the bus_space structure functions */ 47 bs_protos(mvsoc); 48 bs_protos(generic); 49 bs_protos(generic_armv4); 50 bs_protos(bs_notimpl); 51 52 #define MVSOC_BUS_SPACE_NORMAL_FUNCS \ 53 /* read (single) */ \ 54 generic_bs_r_1, \ 55 generic_armv4_bs_r_2, \ 56 generic_bs_r_4, \ 57 bs_notimpl_bs_r_8, \ 58 \ 59 /* read multiple */ \ 60 generic_bs_rm_1, \ 61 generic_armv4_bs_rm_2, \ 62 generic_bs_rm_4, \ 63 bs_notimpl_bs_rm_8, \ 64 \ 65 /* read region */ \ 66 generic_bs_rr_1, \ 67 generic_armv4_bs_rr_2, \ 68 generic_bs_rr_4, \ 69 bs_notimpl_bs_rr_8, \ 70 \ 71 /* write (single) */ \ 72 generic_bs_w_1, \ 73 generic_armv4_bs_w_2, \ 74 generic_bs_w_4, \ 75 bs_notimpl_bs_w_8, \ 76 \ 77 /* write multiple */ \ 78 generic_bs_wm_1, \ 79 generic_armv4_bs_wm_2, \ 80 generic_bs_wm_4, \ 81 bs_notimpl_bs_wm_8, \ 82 \ 83 /* write region */ \ 84 generic_bs_wr_1, \ 85 generic_armv4_bs_wr_2, \ 86 generic_bs_wr_4, \ 87 bs_notimpl_bs_wr_8 88 89 #define MVSOC_BUS_SPACE_DEFAULT_FUNCS \ 90 /* mapping/unmapping */ \ 91 mvsoc_bs_map, \ 92 mvsoc_bs_unmap, \ 93 mvsoc_bs_subregion, \ 94 \ 95 /* allocation/deallocation */ \ 96 mvsoc_bs_alloc, \ 97 mvsoc_bs_free, \ 98 \ 99 /* get kernel virtual address */ \ 100 mvsoc_bs_vaddr, \ 101 \ 102 /* mmap bus space for userland */ \ 103 bs_notimpl_bs_mmap, \ 104 \ 105 /* barrier */ \ 106 mvsoc_bs_barrier, \ 107 \ 108 MVSOC_BUS_SPACE_NORMAL_FUNCS, \ 109 \ 110 /* set multiple */ \ 111 bs_notimpl_bs_sm_1, \ 112 bs_notimpl_bs_sm_2, \ 113 bs_notimpl_bs_sm_4, \ 114 bs_notimpl_bs_sm_8, \ 115 \ 116 /* set region */ \ 117 bs_notimpl_bs_sr_1, \ 118 generic_armv4_bs_sr_2, \ 119 generic_bs_sr_4, \ 120 bs_notimpl_bs_sr_8, \ 121 \ 122 /* copy */ \ 123 bs_notimpl_bs_c_1, \ 124 generic_armv4_bs_c_2, \ 125 bs_notimpl_bs_c_4, \ 126 bs_notimpl_bs_c_8 127 128 129 struct bus_space mvsoc_bs_tag = { 130 /* cookie */ 131 (void *)0, 132 133 MVSOC_BUS_SPACE_DEFAULT_FUNCS, 134 #ifdef __BUS_SPACE_HAS_STREAM_METHODS 135 MVSOC_BUS_SPACE_NORMAL_FUNCS, 136 #endif 137 }; 138 139 #if NMVPEX > 0 140 #if defined(ORION) 141 struct bus_space orion_pex0_mem_bs_tag = { 142 /* cookie */ 143 (void *)ORION_TAG_PEX0_MEM, 144 145 MVSOC_BUS_SPACE_DEFAULT_FUNCS, 146 #ifdef __BUS_SPACE_HAS_STREAM_METHODS 147 MVSOC_BUS_SPACE_NORMAL_FUNCS, 148 #endif 149 }; 150 struct bus_space orion_pex0_io_bs_tag = { 151 /* cookie */ 152 (void *)ORION_TAG_PEX0_IO, 153 154 MVSOC_BUS_SPACE_DEFAULT_FUNCS, 155 #ifdef __BUS_SPACE_HAS_STREAM_METHODS 156 MVSOC_BUS_SPACE_NORMAL_FUNCS, 157 #endif 158 }; 159 struct bus_space orion_pex1_mem_bs_tag = { 160 /* cookie */ 161 (void *)ORION_TAG_PEX1_MEM, 162 163 MVSOC_BUS_SPACE_DEFAULT_FUNCS, 164 #ifdef __BUS_SPACE_HAS_STREAM_METHODS 165 MVSOC_BUS_SPACE_NORMAL_FUNCS, 166 #endif 167 }; 168 struct bus_space orion_pex1_io_bs_tag = { 169 /* cookie */ 170 (void *)ORION_TAG_PEX1_IO, 171 172 MVSOC_BUS_SPACE_DEFAULT_FUNCS, 173 #ifdef __BUS_SPACE_HAS_STREAM_METHODS 174 MVSOC_BUS_SPACE_NORMAL_FUNCS, 175 #endif 176 }; 177 #endif 178 179 #if defined(KIRKWOOD) 180 struct bus_space kirkwood_pex_mem_bs_tag = { 181 /* cookie */ 182 (void *)KIRKWOOD_TAG_PEX_MEM, 183 184 MVSOC_BUS_SPACE_DEFAULT_FUNCS, 185 #ifdef __BUS_SPACE_HAS_STREAM_METHODS 186 MVSOC_BUS_SPACE_NORMAL_FUNCS, 187 #endif 188 }; 189 struct bus_space kirkwood_pex_io_bs_tag = { 190 /* cookie */ 191 (void *)KIRKWOOD_TAG_PEX_IO, 192 193 MVSOC_BUS_SPACE_DEFAULT_FUNCS, 194 #ifdef __BUS_SPACE_HAS_STREAM_METHODS 195 MVSOC_BUS_SPACE_NORMAL_FUNCS, 196 #endif 197 }; 198 struct bus_space kirkwood_pex1_mem_bs_tag = { 199 /* cookie */ 200 (void *)KIRKWOOD_TAG_PEX1_MEM, 201 202 MVSOC_BUS_SPACE_DEFAULT_FUNCS, 203 #ifdef __BUS_SPACE_HAS_STREAM_METHODS 204 MVSOC_BUS_SPACE_NORMAL_FUNCS, 205 #endif 206 }; 207 struct bus_space kirkwood_pex1_io_bs_tag = { 208 /* cookie */ 209 (void *)KIRKWOOD_TAG_PEX1_IO, 210 211 MVSOC_BUS_SPACE_DEFAULT_FUNCS, 212 #ifdef __BUS_SPACE_HAS_STREAM_METHODS 213 MVSOC_BUS_SPACE_NORMAL_FUNCS, 214 #endif 215 }; 216 #endif 217 218 #if defined(ARMADAXP) 219 struct bus_space armadaxp_pex00_mem_bs_tag = { 220 /* cookie */ 221 (void *)ARMADAXP_TAG_PEX00_MEM, 222 223 MVSOC_BUS_SPACE_DEFAULT_FUNCS 224 }; 225 struct bus_space armadaxp_pex00_io_bs_tag = { 226 /* cookie */ 227 (void *)ARMADAXP_TAG_PEX00_IO, 228 229 MVSOC_BUS_SPACE_DEFAULT_FUNCS 230 }; 231 struct bus_space armadaxp_pex01_mem_bs_tag = { 232 /* cookie */ 233 (void *)ARMADAXP_TAG_PEX01_MEM, 234 235 MVSOC_BUS_SPACE_DEFAULT_FUNCS 236 }; 237 struct bus_space armadaxp_pex01_io_bs_tag = { 238 /* cookie */ 239 (void *)ARMADAXP_TAG_PEX01_IO, 240 241 MVSOC_BUS_SPACE_DEFAULT_FUNCS 242 }; 243 struct bus_space armadaxp_pex02_mem_bs_tag = { 244 /* cookie */ 245 (void *)ARMADAXP_TAG_PEX02_MEM, 246 247 MVSOC_BUS_SPACE_DEFAULT_FUNCS 248 }; 249 struct bus_space armadaxp_pex02_io_bs_tag = { 250 /* cookie */ 251 (void *)ARMADAXP_TAG_PEX02_IO, 252 253 MVSOC_BUS_SPACE_DEFAULT_FUNCS 254 }; 255 struct bus_space armadaxp_pex03_mem_bs_tag = { 256 /* cookie */ 257 (void *)ARMADAXP_TAG_PEX03_MEM, 258 259 MVSOC_BUS_SPACE_DEFAULT_FUNCS 260 }; 261 struct bus_space armadaxp_pex03_io_bs_tag = { 262 /* cookie */ 263 (void *)ARMADAXP_TAG_PEX03_IO, 264 265 MVSOC_BUS_SPACE_DEFAULT_FUNCS 266 }; 267 struct bus_space armadaxp_pex2_mem_bs_tag = { 268 /* cookie */ 269 (void *)ARMADAXP_TAG_PEX2_MEM, 270 271 MVSOC_BUS_SPACE_DEFAULT_FUNCS 272 }; 273 struct bus_space armadaxp_pex2_io_bs_tag = { 274 /* cookie */ 275 (void *)ARMADAXP_TAG_PEX2_IO, 276 277 MVSOC_BUS_SPACE_DEFAULT_FUNCS 278 }; 279 struct bus_space armadaxp_pex3_mem_bs_tag = { 280 /* cookie */ 281 (void *)ARMADAXP_TAG_PEX3_MEM, 282 283 MVSOC_BUS_SPACE_DEFAULT_FUNCS 284 }; 285 struct bus_space armadaxp_pex3_io_bs_tag = { 286 /* cookie */ 287 (void *)ARMADAXP_TAG_PEX3_IO, 288 289 MVSOC_BUS_SPACE_DEFAULT_FUNCS 290 }; 291 #endif 292 #endif 293 294 #if NGTPCI > 0 295 #if defined(ORION) 296 struct bus_space orion_pci_mem_bs_tag = { 297 /* cookie */ 298 (void *)ORION_TAG_PCI_MEM, 299 300 MVSOC_BUS_SPACE_DEFAULT_FUNCS, 301 #ifdef __BUS_SPACE_HAS_STREAM_METHODS 302 MVSOC_BUS_SPACE_NORMAL_FUNCS, 303 #endif 304 }; 305 struct bus_space orion_pci_io_bs_tag = { 306 /* cookie */ 307 (void *)ORION_TAG_PCI_IO, 308 309 MVSOC_BUS_SPACE_DEFAULT_FUNCS, 310 #ifdef __BUS_SPACE_HAS_STREAM_METHODS 311 MVSOC_BUS_SPACE_NORMAL_FUNCS, 312 #endif 313 }; 314 #endif 315 #endif 316 317 318 int 319 mvsoc_bs_map(void *space, bus_addr_t address, bus_size_t size, int flags, 320 bus_space_handle_t *handlep) 321 { 322 const struct pmap_devmap *pd; 323 paddr_t startpa, endpa, offset, pa; 324 pt_entry_t *pte; 325 vaddr_t va; 326 327 /* 328 * XXX: We are not configuring any decode windows for Armada XP 329 * at the moment. We rely on those that have been set by u-boot. 330 * Hence we don't want to mess around with decode windows, 331 * till we get full controll over them. 332 */ 333 334 int tag = (int)space; 335 336 if (tag != 0) { 337 bus_addr_t remap; 338 uint32_t base; 339 int window; 340 341 window = mvsoc_target(tag, NULL, NULL, &base, NULL); 342 if (window == -1) 343 return ENOMEM; 344 if (window < nremap) { 345 remap = read_mlmbreg(MVSOC_MLMB_WRLR(window)) & 346 MVSOC_MLMB_WRLR_REMAP_MASK; 347 remap |= 348 (read_mlmbreg(MVSOC_MLMB_WRHR(window)) << 16) << 16; 349 address = address - remap + base; 350 } 351 } 352 353 if ((pd = pmap_devmap_find_pa(address, size)) != NULL) { 354 /* Device was statically mapped. */ 355 *handlep = pd->pd_va + (address - pd->pd_pa); 356 return 0; 357 } 358 359 startpa = trunc_page(address); 360 endpa = round_page(address + size); 361 offset = address & PAGE_MASK; 362 363 /* XXX use extent manager to check duplicate mapping */ 364 365 va = uvm_km_alloc(kernel_map, endpa - startpa, 0, 366 UVM_KMF_VAONLY | UVM_KMF_NOWAIT); 367 if (va == 0x00000000) 368 return ENOMEM; 369 370 *handlep = va + offset; 371 372 /* Now map the pages */ 373 for (pa = startpa; pa < endpa; pa += PAGE_SIZE, va += PAGE_SIZE) { 374 pmap_kenter_pa(va, pa, VM_PROT_READ | VM_PROT_WRITE, 0); 375 if ((flags & BUS_SPACE_MAP_CACHEABLE) == 0) { 376 pte = vtopte(va); 377 *pte &= ~L2_S_CACHE_MASK; 378 PTE_SYNC(pte); 379 /* 380 * XXX: pmap_kenter_pa() also does PTE_SYNC(). a bit of 381 * waste. 382 */ 383 } 384 } 385 pmap_update(pmap_kernel()); 386 387 return 0; 388 } 389 390 void 391 mvsoc_bs_unmap(void *space, bus_space_handle_t handle, bus_size_t size) 392 { 393 vaddr_t va, sz; 394 395 if (pmap_devmap_find_va(handle, size) != NULL) 396 /* Device was statically mapped; nothing to do. */ 397 return; 398 399 va = trunc_page(handle); 400 sz = round_page(handle + size) - va; 401 402 pmap_kremove(va, sz); 403 pmap_update(pmap_kernel()); 404 uvm_km_free(kernel_map, va, sz, UVM_KMF_VAONLY); 405 } 406 407 /* ARGSUSED */ 408 int 409 mvsoc_bs_subregion(void *space, bus_space_handle_t handle, 410 bus_size_t offset, bus_size_t size, 411 bus_space_handle_t *nhandlep) 412 { 413 414 *nhandlep = handle + offset; 415 return 0; 416 } 417 418 /* ARGSUSED */ 419 int 420 mvsoc_bs_alloc(void *space, bus_addr_t reg_start, bus_addr_t reg_end, 421 bus_size_t size, bus_size_t alignment, bus_size_t boundary, 422 int flags, bus_addr_t *addrp, bus_space_handle_t *handlep) 423 { 424 425 panic("%s(): not implemented\n", __func__); 426 } 427 428 /* ARGSUSED */ 429 void 430 mvsoc_bs_free(void *space, bus_space_handle_t handle, bus_size_t size) 431 { 432 433 panic("%s(): not implemented\n", __func__); 434 } 435 436 /* ARGSUSED */ 437 void 438 mvsoc_bs_barrier(void *space, bus_space_handle_t handle, bus_size_t offset, 439 bus_size_t length, int flags) 440 { 441 442 /* Nothing to do. */ 443 } 444 445 /* ARGSUSED */ 446 void * 447 mvsoc_bs_vaddr(void *space, bus_space_handle_t handle) 448 { 449 450 return (void *)handle; 451 } 452
Indexes created Sat Oct 18 23:09:54 GMT 2025