i80312_space.c revision 1.2.2.2
1 1.2.2.2 thorpej /* $NetBSD: i80312_space.c,v 1.2.2.2 2002/01/10 19:38:33 thorpej Exp $ */ 2 1.2.2.2 thorpej 3 1.2.2.2 thorpej /* 4 1.2.2.2 thorpej * Copyright (c) 2001 Wasabi Systems, Inc. 5 1.2.2.2 thorpej * All rights reserved. 6 1.2.2.2 thorpej * 7 1.2.2.2 thorpej * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 1.2.2.2 thorpej * 9 1.2.2.2 thorpej * Redistribution and use in source and binary forms, with or without 10 1.2.2.2 thorpej * modification, are permitted provided that the following conditions 11 1.2.2.2 thorpej * are met: 12 1.2.2.2 thorpej * 1. Redistributions of source code must retain the above copyright 13 1.2.2.2 thorpej * notice, this list of conditions and the following disclaimer. 14 1.2.2.2 thorpej * 2. Redistributions in binary form must reproduce the above copyright 15 1.2.2.2 thorpej * notice, this list of conditions and the following disclaimer in the 16 1.2.2.2 thorpej * documentation and/or other materials provided with the distribution. 17 1.2.2.2 thorpej * 3. All advertising materials mentioning features or use of this software 18 1.2.2.2 thorpej * must display the following acknowledgement: 19 1.2.2.2 thorpej * This product includes software developed for the NetBSD Project by 20 1.2.2.2 thorpej * Wasabi Systems, Inc. 21 1.2.2.2 thorpej * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 1.2.2.2 thorpej * or promote products derived from this software without specific prior 23 1.2.2.2 thorpej * written permission. 24 1.2.2.2 thorpej * 25 1.2.2.2 thorpej * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 1.2.2.2 thorpej * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 1.2.2.2 thorpej * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 1.2.2.2 thorpej * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 1.2.2.2 thorpej * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 1.2.2.2 thorpej * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 1.2.2.2 thorpej * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 1.2.2.2 thorpej * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 1.2.2.2 thorpej * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 1.2.2.2 thorpej * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 1.2.2.2 thorpej * POSSIBILITY OF SUCH DAMAGE. 36 1.2.2.2 thorpej */ 37 1.2.2.2 thorpej 38 1.2.2.2 thorpej /* 39 1.2.2.2 thorpej * bus_space functions for i80312 Companion I/O chip. 40 1.2.2.2 thorpej */ 41 1.2.2.2 thorpej 42 1.2.2.2 thorpej #include <sys/param.h> 43 1.2.2.2 thorpej #include <sys/systm.h> 44 1.2.2.2 thorpej 45 1.2.2.2 thorpej #include <uvm/uvm_extern.h> 46 1.2.2.2 thorpej 47 1.2.2.2 thorpej #include <machine/bus.h> 48 1.2.2.2 thorpej 49 1.2.2.2 thorpej #include <arm/xscale/i80312reg.h> 50 1.2.2.2 thorpej #include <arm/xscale/i80312var.h> 51 1.2.2.2 thorpej 52 1.2.2.2 thorpej /* Prototypes for all the bus_space structure functions */ 53 1.2.2.2 thorpej bs_protos(i80312); 54 1.2.2.2 thorpej bs_protos(i80312_io); 55 1.2.2.2 thorpej bs_protos(i80312_mem); 56 1.2.2.2 thorpej bs_protos(bs_notimpl); 57 1.2.2.2 thorpej 58 1.2.2.2 thorpej /* 59 1.2.2.2 thorpej * Template bus_space -- copied, and the bits that are NULL are 60 1.2.2.2 thorpej * filled in. 61 1.2.2.2 thorpej */ 62 1.2.2.2 thorpej const struct bus_space i80312_bs_tag_template = { 63 1.2.2.2 thorpej /* cookie */ 64 1.2.2.2 thorpej (void *) 0, 65 1.2.2.2 thorpej 66 1.2.2.2 thorpej /* mapping/unmapping */ 67 1.2.2.2 thorpej NULL, 68 1.2.2.2 thorpej NULL, 69 1.2.2.2 thorpej i80312_bs_subregion, 70 1.2.2.2 thorpej 71 1.2.2.2 thorpej /* allocation/deallocation */ 72 1.2.2.2 thorpej NULL, 73 1.2.2.2 thorpej NULL, 74 1.2.2.2 thorpej 75 1.2.2.2 thorpej /* get kernel virtual address */ 76 1.2.2.2 thorpej i80312_bs_vaddr, 77 1.2.2.2 thorpej 78 1.2.2.2 thorpej /* mmap */ 79 1.2.2.2 thorpej i80312_bs_mmap, 80 1.2.2.2 thorpej 81 1.2.2.2 thorpej /* barrier */ 82 1.2.2.2 thorpej i80312_bs_barrier, 83 1.2.2.2 thorpej 84 1.2.2.2 thorpej /* read (single) */ 85 1.2.2.2 thorpej i80312_bs_r_1, 86 1.2.2.2 thorpej i80312_bs_r_2, 87 1.2.2.2 thorpej i80312_bs_r_4, 88 1.2.2.2 thorpej bs_notimpl_bs_r_8, 89 1.2.2.2 thorpej 90 1.2.2.2 thorpej /* read multiple */ 91 1.2.2.2 thorpej i80312_bs_rm_1, 92 1.2.2.2 thorpej i80312_bs_rm_2, 93 1.2.2.2 thorpej i80312_bs_rm_4, 94 1.2.2.2 thorpej bs_notimpl_bs_rm_8, 95 1.2.2.2 thorpej 96 1.2.2.2 thorpej /* read region */ 97 1.2.2.2 thorpej bs_notimpl_bs_rr_1, 98 1.2.2.2 thorpej i80312_bs_rr_2, 99 1.2.2.2 thorpej i80312_bs_rr_4, 100 1.2.2.2 thorpej bs_notimpl_bs_rr_8, 101 1.2.2.2 thorpej 102 1.2.2.2 thorpej /* write (single) */ 103 1.2.2.2 thorpej i80312_bs_w_1, 104 1.2.2.2 thorpej i80312_bs_w_2, 105 1.2.2.2 thorpej i80312_bs_w_4, 106 1.2.2.2 thorpej bs_notimpl_bs_w_8, 107 1.2.2.2 thorpej 108 1.2.2.2 thorpej /* write multiple */ 109 1.2.2.2 thorpej i80312_bs_wm_1, 110 1.2.2.2 thorpej i80312_bs_wm_2, 111 1.2.2.2 thorpej i80312_bs_wm_4, 112 1.2.2.2 thorpej bs_notimpl_bs_wm_8, 113 1.2.2.2 thorpej 114 1.2.2.2 thorpej /* write region */ 115 1.2.2.2 thorpej bs_notimpl_bs_wr_1, 116 1.2.2.2 thorpej i80312_bs_wr_2, 117 1.2.2.2 thorpej i80312_bs_wr_4, 118 1.2.2.2 thorpej bs_notimpl_bs_wr_8, 119 1.2.2.2 thorpej 120 1.2.2.2 thorpej /* set multiple */ 121 1.2.2.2 thorpej bs_notimpl_bs_sm_1, 122 1.2.2.2 thorpej bs_notimpl_bs_sm_2, 123 1.2.2.2 thorpej bs_notimpl_bs_sm_4, 124 1.2.2.2 thorpej bs_notimpl_bs_sm_8, 125 1.2.2.2 thorpej 126 1.2.2.2 thorpej /* set region */ 127 1.2.2.2 thorpej bs_notimpl_bs_sr_1, 128 1.2.2.2 thorpej i80312_bs_sr_2, 129 1.2.2.2 thorpej bs_notimpl_bs_sr_4, 130 1.2.2.2 thorpej bs_notimpl_bs_sr_8, 131 1.2.2.2 thorpej 132 1.2.2.2 thorpej /* copy */ 133 1.2.2.2 thorpej bs_notimpl_bs_c_1, 134 1.2.2.2 thorpej i80312_bs_c_2, 135 1.2.2.2 thorpej bs_notimpl_bs_c_4, 136 1.2.2.2 thorpej bs_notimpl_bs_c_8, 137 1.2.2.2 thorpej }; 138 1.2.2.2 thorpej 139 1.2.2.2 thorpej void 140 1.2.2.2 thorpej i80312_bs_init(bus_space_tag_t bs, void *cookie) 141 1.2.2.2 thorpej { 142 1.2.2.2 thorpej 143 1.2.2.2 thorpej *bs = i80312_bs_tag_template; 144 1.2.2.2 thorpej bs->bs_cookie = cookie; 145 1.2.2.2 thorpej } 146 1.2.2.2 thorpej 147 1.2.2.2 thorpej void 148 1.2.2.2 thorpej i80312_io_bs_init(bus_space_tag_t bs, void *cookie) 149 1.2.2.2 thorpej { 150 1.2.2.2 thorpej 151 1.2.2.2 thorpej *bs = i80312_bs_tag_template; 152 1.2.2.2 thorpej bs->bs_cookie = cookie; 153 1.2.2.2 thorpej 154 1.2.2.2 thorpej bs->bs_map = i80312_io_bs_map; 155 1.2.2.2 thorpej bs->bs_unmap = i80312_io_bs_unmap; 156 1.2.2.2 thorpej bs->bs_alloc = i80312_io_bs_alloc; 157 1.2.2.2 thorpej bs->bs_free = i80312_io_bs_free; 158 1.2.2.2 thorpej 159 1.2.2.2 thorpej bs->bs_vaddr = i80312_io_bs_vaddr; 160 1.2.2.2 thorpej } 161 1.2.2.2 thorpej 162 1.2.2.2 thorpej void 163 1.2.2.2 thorpej i80312_mem_bs_init(bus_space_tag_t bs, void *cookie) 164 1.2.2.2 thorpej { 165 1.2.2.2 thorpej 166 1.2.2.2 thorpej *bs = i80312_bs_tag_template; 167 1.2.2.2 thorpej bs->bs_cookie = cookie; 168 1.2.2.2 thorpej 169 1.2.2.2 thorpej bs->bs_map = i80312_mem_bs_map; 170 1.2.2.2 thorpej bs->bs_unmap = i80312_mem_bs_unmap; 171 1.2.2.2 thorpej bs->bs_alloc = i80312_mem_bs_alloc; 172 1.2.2.2 thorpej bs->bs_free = i80312_mem_bs_free; 173 1.2.2.2 thorpej 174 1.2.2.2 thorpej bs->bs_mmap = i80312_mem_bs_mmap; 175 1.2.2.2 thorpej } 176 1.2.2.2 thorpej 177 1.2.2.2 thorpej /* *** Routines shared by i80312, PCI IO, and PCI MEM. *** */ 178 1.2.2.2 thorpej 179 1.2.2.2 thorpej int 180 1.2.2.2 thorpej i80312_bs_subregion(void *t, bus_space_handle_t bsh, bus_size_t offset, 181 1.2.2.2 thorpej bus_size_t size, bus_space_handle_t *nbshp) 182 1.2.2.2 thorpej { 183 1.2.2.2 thorpej 184 1.2.2.2 thorpej *nbshp = bsh + offset; 185 1.2.2.2 thorpej return (0); 186 1.2.2.2 thorpej } 187 1.2.2.2 thorpej 188 1.2.2.2 thorpej void 189 1.2.2.2 thorpej i80312_bs_barrier(void *t, bus_space_handle_t bsh, bus_size_t offset, 190 1.2.2.2 thorpej bus_size_t len, int flags) 191 1.2.2.2 thorpej { 192 1.2.2.2 thorpej 193 1.2.2.2 thorpej /* Nothing to do. */ 194 1.2.2.2 thorpej } 195 1.2.2.2 thorpej 196 1.2.2.2 thorpej void * 197 1.2.2.2 thorpej i80312_bs_vaddr(void *t, bus_space_handle_t bsh) 198 1.2.2.2 thorpej { 199 1.2.2.2 thorpej 200 1.2.2.2 thorpej return ((void *)bsh); 201 1.2.2.2 thorpej } 202 1.2.2.2 thorpej 203 1.2.2.2 thorpej paddr_t 204 1.2.2.2 thorpej i80312_bs_mmap(void *t, bus_addr_t addr, off_t off, int prot, int flags) 205 1.2.2.2 thorpej { 206 1.2.2.2 thorpej 207 1.2.2.2 thorpej /* Not supported. */ 208 1.2.2.2 thorpej return (-1); 209 1.2.2.2 thorpej } 210 1.2.2.2 thorpej 211 1.2.2.2 thorpej /* *** Routines for PCI IO. *** */ 212 1.2.2.2 thorpej 213 1.2.2.2 thorpej int 214 1.2.2.2 thorpej i80312_io_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int flags, 215 1.2.2.2 thorpej bus_space_handle_t *bshp) 216 1.2.2.2 thorpej { 217 1.2.2.2 thorpej struct i80312_softc *sc = t; 218 1.2.2.2 thorpej vaddr_t winvaddr; 219 1.2.2.2 thorpej uint32_t busbase, bussize; 220 1.2.2.2 thorpej 221 1.2.2.2 thorpej if (bpa >= sc->sc_pioout_base && 222 1.2.2.2 thorpej bpa < (sc->sc_pioout_base + sc->sc_pioout_size)) { 223 1.2.2.2 thorpej busbase = sc->sc_pioout_base; 224 1.2.2.2 thorpej bussize = sc->sc_pioout_size; 225 1.2.2.2 thorpej winvaddr = sc->sc_piow_vaddr; 226 1.2.2.2 thorpej } else if (bpa >= sc->sc_sioout_base && 227 1.2.2.2 thorpej bpa < (sc->sc_sioout_base + sc->sc_sioout_size)) { 228 1.2.2.2 thorpej busbase = sc->sc_sioout_base; 229 1.2.2.2 thorpej bussize = sc->sc_sioout_size; 230 1.2.2.2 thorpej winvaddr = sc->sc_siow_vaddr; 231 1.2.2.2 thorpej } else 232 1.2.2.2 thorpej return (EINVAL); 233 1.2.2.2 thorpej 234 1.2.2.2 thorpej if ((bpa + size) >= (busbase + bussize)) 235 1.2.2.2 thorpej return (EINVAL); 236 1.2.2.2 thorpej 237 1.2.2.2 thorpej /* 238 1.2.2.2 thorpej * Found the window -- PCI I/O space is mapped at a fixed 239 1.2.2.2 thorpej * virtual address by board-specific code. Translate the 240 1.2.2.2 thorpej * bus address to the virtual address. 241 1.2.2.2 thorpej */ 242 1.2.2.2 thorpej *bshp = winvaddr + (bpa - busbase); 243 1.2.2.2 thorpej 244 1.2.2.2 thorpej return (0); 245 1.2.2.2 thorpej } 246 1.2.2.2 thorpej 247 1.2.2.2 thorpej void 248 1.2.2.2 thorpej i80312_io_bs_unmap(void *t, bus_space_handle_t bsh, bus_size_t size) 249 1.2.2.2 thorpej { 250 1.2.2.2 thorpej 251 1.2.2.2 thorpej /* Nothing to do. */ 252 1.2.2.2 thorpej } 253 1.2.2.2 thorpej 254 1.2.2.2 thorpej int 255 1.2.2.2 thorpej i80312_io_bs_alloc(void *t, bus_addr_t rstart, bus_addr_t rend, 256 1.2.2.2 thorpej bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags, 257 1.2.2.2 thorpej bus_addr_t *bpap, bus_space_handle_t *bshp) 258 1.2.2.2 thorpej { 259 1.2.2.2 thorpej 260 1.2.2.2 thorpej panic("i80312_io_bs_alloc(): not implemented\n"); 261 1.2.2.2 thorpej } 262 1.2.2.2 thorpej 263 1.2.2.2 thorpej void 264 1.2.2.2 thorpej i80312_io_bs_free(void *t, bus_space_handle_t bsh, bus_size_t size) 265 1.2.2.2 thorpej { 266 1.2.2.2 thorpej 267 1.2.2.2 thorpej panic("i80312_io_bs_free(): not implemented\n"); 268 1.2.2.2 thorpej } 269 1.2.2.2 thorpej 270 1.2.2.2 thorpej void * 271 1.2.2.2 thorpej i80312_io_bs_vaddr(void *t, bus_space_handle_t bsh) 272 1.2.2.2 thorpej { 273 1.2.2.2 thorpej 274 1.2.2.2 thorpej /* Not supported. */ 275 1.2.2.2 thorpej return (NULL); 276 1.2.2.2 thorpej } 277 1.2.2.2 thorpej 278 1.2.2.2 thorpej /* *** Routines for PCI MEM. *** */ 279 1.2.2.2 thorpej 280 1.2.2.2 thorpej int 281 1.2.2.2 thorpej i80312_mem_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int flags, 282 1.2.2.2 thorpej bus_space_handle_t *bshp) 283 1.2.2.2 thorpej { 284 1.2.2.2 thorpej 285 1.2.2.2 thorpej struct i80312_softc *sc = t; 286 1.2.2.2 thorpej vaddr_t va; 287 1.2.2.2 thorpej uint32_t busbase, bussize; 288 1.2.2.2 thorpej paddr_t pa, endpa, physbase; 289 1.2.2.2 thorpej 290 1.2.2.2 thorpej if (bpa >= sc->sc_pmemout_base && 291 1.2.2.2 thorpej bpa < (sc->sc_pmemout_base + sc->sc_pmemout_size)) { 292 1.2.2.2 thorpej busbase = sc->sc_pmemout_base; 293 1.2.2.2 thorpej bussize = sc->sc_pmemout_size; 294 1.2.2.2 thorpej physbase = I80312_PCI_XLATE_PMW_BASE; 295 1.2.2.2 thorpej } else if (bpa >= sc->sc_smemout_base && 296 1.2.2.2 thorpej bpa < (sc->sc_smemout_base + sc->sc_smemout_size)) { 297 1.2.2.2 thorpej busbase = sc->sc_smemout_base; 298 1.2.2.2 thorpej bussize = sc->sc_smemout_size; 299 1.2.2.2 thorpej physbase = I80312_PCI_XLATE_SMW_BASE; 300 1.2.2.2 thorpej } else 301 1.2.2.2 thorpej return (EINVAL); 302 1.2.2.2 thorpej 303 1.2.2.2 thorpej if ((bpa + size) >= (busbase + bussize)) 304 1.2.2.2 thorpej return (EINVAL); 305 1.2.2.2 thorpej 306 1.2.2.2 thorpej /* 307 1.2.2.2 thorpej * Found the window -- PCI MEM space is not mapped by allocating 308 1.2.2.2 thorpej * some kernel VA space and mapping the pages with pmap_enter(). 309 1.2.2.2 thorpej * pmap_enter() will map unmanaged pages as non-cacheable. 310 1.2.2.2 thorpej */ 311 1.2.2.2 thorpej pa = trunc_page((bpa - busbase) + physbase); 312 1.2.2.2 thorpej endpa = round_page(((bpa - busbase) + physbase) + size); 313 1.2.2.2 thorpej 314 1.2.2.2 thorpej va = uvm_km_valloc(kernel_map, endpa - pa); 315 1.2.2.2 thorpej if (va == 0) 316 1.2.2.2 thorpej return (ENOMEM); 317 1.2.2.2 thorpej 318 1.2.2.2 thorpej *bshp = va + (bpa & PAGE_MASK); 319 1.2.2.2 thorpej 320 1.2.2.2 thorpej for (; pa < endpa; pa += PAGE_SIZE, va += PAGE_SIZE) { 321 1.2.2.2 thorpej pmap_enter(pmap_kernel(), va, pa, 322 1.2.2.2 thorpej VM_PROT_READ | VM_PROT_WRITE, PMAP_WIRED); 323 1.2.2.2 thorpej } 324 1.2.2.2 thorpej pmap_update(pmap_kernel()); 325 1.2.2.2 thorpej 326 1.2.2.2 thorpej return (0); 327 1.2.2.2 thorpej } 328 1.2.2.2 thorpej 329 1.2.2.2 thorpej void 330 1.2.2.2 thorpej i80312_mem_bs_unmap(void *t, bus_space_handle_t bsh, bus_size_t size) 331 1.2.2.2 thorpej { 332 1.2.2.2 thorpej vaddr_t va, endva; 333 1.2.2.2 thorpej 334 1.2.2.2 thorpej va = trunc_page(bsh); 335 1.2.2.2 thorpej endva = round_page(bsh + size); 336 1.2.2.2 thorpej 337 1.2.2.2 thorpej /* Free the kernel virtual mapping. */ 338 1.2.2.2 thorpej uvm_km_free(kernel_map, va, endva - va); 339 1.2.2.2 thorpej } 340 1.2.2.2 thorpej 341 1.2.2.2 thorpej int 342 1.2.2.2 thorpej i80312_mem_bs_alloc(void *t, bus_addr_t rstart, bus_addr_t rend, 343 1.2.2.2 thorpej bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags, 344 1.2.2.2 thorpej bus_addr_t *bpap, bus_space_handle_t *bshp) 345 1.2.2.2 thorpej { 346 1.2.2.2 thorpej 347 1.2.2.2 thorpej panic("i80312_mem_bs_alloc(): not implemented\n"); 348 1.2.2.2 thorpej } 349 1.2.2.2 thorpej 350 1.2.2.2 thorpej void 351 1.2.2.2 thorpej i80312_mem_bs_free(void *t, bus_space_handle_t bsh, bus_size_t size) 352 1.2.2.2 thorpej { 353 1.2.2.2 thorpej 354 1.2.2.2 thorpej panic("i80312_mem_bs_free(): not implemented\n"); 355 1.2.2.2 thorpej } 356 1.2.2.2 thorpej 357 1.2.2.2 thorpej paddr_t 358 1.2.2.2 thorpej i80312_mem_bs_mmap(void *t, bus_addr_t addr, off_t off, int prot, int flags) 359 1.2.2.2 thorpej { 360 1.2.2.2 thorpej 361 1.2.2.2 thorpej /* XXX */ 362 1.2.2.2 thorpej return (-1); 363 1.2.2.2 thorpej } 364
Indexes created Wed Oct 22 13:09:56 GMT 2025