i80321_space.c revision 1.1.2.4
1 1.1.2.4 briggs /* $NetBSD: i80321_space.c,v 1.1.2.4 2002/08/29 19:16:49 briggs Exp $ */ 2 1.1.2.2 nathanw 3 1.1.2.2 nathanw /* 4 1.1.2.2 nathanw * Copyright (c) 2001, 2002 Wasabi Systems, Inc. 5 1.1.2.2 nathanw * All rights reserved. 6 1.1.2.2 nathanw * 7 1.1.2.2 nathanw * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 1.1.2.2 nathanw * 9 1.1.2.2 nathanw * Redistribution and use in source and binary forms, with or without 10 1.1.2.2 nathanw * modification, are permitted provided that the following conditions 11 1.1.2.2 nathanw * are met: 12 1.1.2.2 nathanw * 1. Redistributions of source code must retain the above copyright 13 1.1.2.2 nathanw * notice, this list of conditions and the following disclaimer. 14 1.1.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 15 1.1.2.2 nathanw * notice, this list of conditions and the following disclaimer in the 16 1.1.2.2 nathanw * documentation and/or other materials provided with the distribution. 17 1.1.2.2 nathanw * 3. All advertising materials mentioning features or use of this software 18 1.1.2.2 nathanw * must display the following acknowledgement: 19 1.1.2.2 nathanw * This product includes software developed for the NetBSD Project by 20 1.1.2.2 nathanw * Wasabi Systems, Inc. 21 1.1.2.2 nathanw * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 1.1.2.2 nathanw * or promote products derived from this software without specific prior 23 1.1.2.2 nathanw * written permission. 24 1.1.2.2 nathanw * 25 1.1.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 1.1.2.2 nathanw * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 1.1.2.2 nathanw * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 1.1.2.2 nathanw * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 1.1.2.2 nathanw * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 1.1.2.2 nathanw * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 1.1.2.2 nathanw * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 1.1.2.2 nathanw * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 1.1.2.2 nathanw * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 1.1.2.2 nathanw * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 1.1.2.2 nathanw * POSSIBILITY OF SUCH DAMAGE. 36 1.1.2.2 nathanw */ 37 1.1.2.2 nathanw 38 1.1.2.2 nathanw /* 39 1.1.2.2 nathanw * bus_space functions for i80321 I/O Processor. 40 1.1.2.2 nathanw */ 41 1.1.2.2 nathanw 42 1.1.2.2 nathanw #include <sys/param.h> 43 1.1.2.2 nathanw #include <sys/systm.h> 44 1.1.2.2 nathanw 45 1.1.2.2 nathanw #include <uvm/uvm_extern.h> 46 1.1.2.2 nathanw 47 1.1.2.2 nathanw #include <machine/bus.h> 48 1.1.2.2 nathanw 49 1.1.2.2 nathanw #include <arm/xscale/i80321reg.h> 50 1.1.2.2 nathanw #include <arm/xscale/i80321var.h> 51 1.1.2.2 nathanw 52 1.1.2.2 nathanw /* Prototypes for all the bus_space structure functions */ 53 1.1.2.2 nathanw bs_protos(i80321); 54 1.1.2.2 nathanw bs_protos(i80321_io); 55 1.1.2.2 nathanw bs_protos(i80321_mem); 56 1.1.2.3 nathanw bs_protos(generic); 57 1.1.2.3 nathanw bs_protos(generic_armv4); 58 1.1.2.2 nathanw bs_protos(bs_notimpl); 59 1.1.2.2 nathanw 60 1.1.2.2 nathanw /* 61 1.1.2.2 nathanw * Template bus_space -- copied, and the bits that are NULL are 62 1.1.2.2 nathanw * filled in. 63 1.1.2.2 nathanw */ 64 1.1.2.2 nathanw const struct bus_space i80321_bs_tag_template = { 65 1.1.2.2 nathanw /* cookie */ 66 1.1.2.2 nathanw (void *) 0, 67 1.1.2.2 nathanw 68 1.1.2.2 nathanw /* mapping/unmapping */ 69 1.1.2.2 nathanw NULL, 70 1.1.2.2 nathanw NULL, 71 1.1.2.2 nathanw i80321_bs_subregion, 72 1.1.2.2 nathanw 73 1.1.2.2 nathanw /* allocation/deallocation */ 74 1.1.2.2 nathanw NULL, 75 1.1.2.2 nathanw NULL, 76 1.1.2.2 nathanw 77 1.1.2.2 nathanw /* get kernel virtual address */ 78 1.1.2.2 nathanw i80321_bs_vaddr, 79 1.1.2.2 nathanw 80 1.1.2.2 nathanw /* mmap */ 81 1.1.2.2 nathanw i80321_bs_mmap, 82 1.1.2.2 nathanw 83 1.1.2.2 nathanw /* barrier */ 84 1.1.2.2 nathanw i80321_bs_barrier, 85 1.1.2.2 nathanw 86 1.1.2.2 nathanw /* read (single) */ 87 1.1.2.3 nathanw generic_bs_r_1, 88 1.1.2.3 nathanw generic_armv4_bs_r_2, 89 1.1.2.3 nathanw generic_bs_r_4, 90 1.1.2.2 nathanw bs_notimpl_bs_r_8, 91 1.1.2.2 nathanw 92 1.1.2.2 nathanw /* read multiple */ 93 1.1.2.3 nathanw generic_bs_rm_1, 94 1.1.2.3 nathanw generic_armv4_bs_rm_2, 95 1.1.2.3 nathanw generic_bs_rm_4, 96 1.1.2.2 nathanw bs_notimpl_bs_rm_8, 97 1.1.2.2 nathanw 98 1.1.2.2 nathanw /* read region */ 99 1.1.2.2 nathanw bs_notimpl_bs_rr_1, 100 1.1.2.3 nathanw generic_armv4_bs_rr_2, 101 1.1.2.3 nathanw generic_bs_rr_4, 102 1.1.2.2 nathanw bs_notimpl_bs_rr_8, 103 1.1.2.2 nathanw 104 1.1.2.2 nathanw /* write (single) */ 105 1.1.2.3 nathanw generic_bs_w_1, 106 1.1.2.3 nathanw generic_armv4_bs_w_2, 107 1.1.2.3 nathanw generic_bs_w_4, 108 1.1.2.2 nathanw bs_notimpl_bs_w_8, 109 1.1.2.2 nathanw 110 1.1.2.2 nathanw /* write multiple */ 111 1.1.2.3 nathanw generic_bs_wm_1, 112 1.1.2.3 nathanw generic_armv4_bs_wm_2, 113 1.1.2.3 nathanw generic_bs_wm_4, 114 1.1.2.2 nathanw bs_notimpl_bs_wm_8, 115 1.1.2.2 nathanw 116 1.1.2.2 nathanw /* write region */ 117 1.1.2.2 nathanw bs_notimpl_bs_wr_1, 118 1.1.2.3 nathanw generic_armv4_bs_wr_2, 119 1.1.2.3 nathanw generic_bs_wr_4, 120 1.1.2.2 nathanw bs_notimpl_bs_wr_8, 121 1.1.2.2 nathanw 122 1.1.2.2 nathanw /* set multiple */ 123 1.1.2.2 nathanw bs_notimpl_bs_sm_1, 124 1.1.2.2 nathanw bs_notimpl_bs_sm_2, 125 1.1.2.2 nathanw bs_notimpl_bs_sm_4, 126 1.1.2.2 nathanw bs_notimpl_bs_sm_8, 127 1.1.2.2 nathanw 128 1.1.2.2 nathanw /* set region */ 129 1.1.2.2 nathanw bs_notimpl_bs_sr_1, 130 1.1.2.3 nathanw generic_armv4_bs_sr_2, 131 1.1.2.4 briggs generic_bs_sr_4, 132 1.1.2.2 nathanw bs_notimpl_bs_sr_8, 133 1.1.2.2 nathanw 134 1.1.2.2 nathanw /* copy */ 135 1.1.2.2 nathanw bs_notimpl_bs_c_1, 136 1.1.2.3 nathanw generic_armv4_bs_c_2, 137 1.1.2.2 nathanw bs_notimpl_bs_c_4, 138 1.1.2.2 nathanw bs_notimpl_bs_c_8, 139 1.1.2.2 nathanw }; 140 1.1.2.2 nathanw 141 1.1.2.2 nathanw void 142 1.1.2.2 nathanw i80321_bs_init(bus_space_tag_t bs, void *cookie) 143 1.1.2.2 nathanw { 144 1.1.2.2 nathanw 145 1.1.2.2 nathanw *bs = i80321_bs_tag_template; 146 1.1.2.2 nathanw bs->bs_cookie = cookie; 147 1.1.2.2 nathanw } 148 1.1.2.2 nathanw 149 1.1.2.2 nathanw void 150 1.1.2.2 nathanw i80321_io_bs_init(bus_space_tag_t bs, void *cookie) 151 1.1.2.2 nathanw { 152 1.1.2.2 nathanw 153 1.1.2.2 nathanw *bs = i80321_bs_tag_template; 154 1.1.2.2 nathanw bs->bs_cookie = cookie; 155 1.1.2.2 nathanw 156 1.1.2.2 nathanw bs->bs_map = i80321_io_bs_map; 157 1.1.2.2 nathanw bs->bs_unmap = i80321_io_bs_unmap; 158 1.1.2.2 nathanw bs->bs_alloc = i80321_io_bs_alloc; 159 1.1.2.2 nathanw bs->bs_free = i80321_io_bs_free; 160 1.1.2.2 nathanw 161 1.1.2.2 nathanw bs->bs_vaddr = i80321_io_bs_vaddr; 162 1.1.2.2 nathanw } 163 1.1.2.2 nathanw 164 1.1.2.2 nathanw void 165 1.1.2.2 nathanw i80321_mem_bs_init(bus_space_tag_t bs, void *cookie) 166 1.1.2.2 nathanw { 167 1.1.2.2 nathanw 168 1.1.2.2 nathanw *bs = i80321_bs_tag_template; 169 1.1.2.2 nathanw bs->bs_cookie = cookie; 170 1.1.2.2 nathanw 171 1.1.2.2 nathanw bs->bs_map = i80321_mem_bs_map; 172 1.1.2.2 nathanw bs->bs_unmap = i80321_mem_bs_unmap; 173 1.1.2.2 nathanw bs->bs_alloc = i80321_mem_bs_alloc; 174 1.1.2.2 nathanw bs->bs_free = i80321_mem_bs_free; 175 1.1.2.2 nathanw 176 1.1.2.2 nathanw bs->bs_mmap = i80321_mem_bs_mmap; 177 1.1.2.2 nathanw } 178 1.1.2.2 nathanw 179 1.1.2.2 nathanw /* *** Routines shared by i80321, PCI IO, and PCI MEM. *** */ 180 1.1.2.2 nathanw 181 1.1.2.2 nathanw int 182 1.1.2.2 nathanw i80321_bs_subregion(void *t, bus_space_handle_t bsh, bus_size_t offset, 183 1.1.2.2 nathanw bus_size_t size, bus_space_handle_t *nbshp) 184 1.1.2.2 nathanw { 185 1.1.2.2 nathanw 186 1.1.2.2 nathanw *nbshp = bsh + offset; 187 1.1.2.2 nathanw return (0); 188 1.1.2.2 nathanw } 189 1.1.2.2 nathanw 190 1.1.2.2 nathanw void 191 1.1.2.2 nathanw i80321_bs_barrier(void *t, bus_space_handle_t bsh, bus_size_t offset, 192 1.1.2.2 nathanw bus_size_t len, int flags) 193 1.1.2.2 nathanw { 194 1.1.2.2 nathanw 195 1.1.2.2 nathanw /* Nothing to do. */ 196 1.1.2.2 nathanw } 197 1.1.2.2 nathanw 198 1.1.2.2 nathanw void * 199 1.1.2.2 nathanw i80321_bs_vaddr(void *t, bus_space_handle_t bsh) 200 1.1.2.2 nathanw { 201 1.1.2.2 nathanw 202 1.1.2.2 nathanw return ((void *)bsh); 203 1.1.2.2 nathanw } 204 1.1.2.2 nathanw 205 1.1.2.2 nathanw paddr_t 206 1.1.2.2 nathanw i80321_bs_mmap(void *t, bus_addr_t addr, off_t off, int prot, int flags) 207 1.1.2.2 nathanw { 208 1.1.2.2 nathanw 209 1.1.2.2 nathanw /* Not supported. */ 210 1.1.2.2 nathanw return (-1); 211 1.1.2.2 nathanw } 212 1.1.2.2 nathanw 213 1.1.2.2 nathanw /* *** Routines for PCI IO. *** */ 214 1.1.2.2 nathanw 215 1.1.2.2 nathanw int 216 1.1.2.2 nathanw i80321_io_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int flags, 217 1.1.2.2 nathanw bus_space_handle_t *bshp) 218 1.1.2.2 nathanw { 219 1.1.2.2 nathanw struct i80321_softc *sc = t; 220 1.1.2.2 nathanw vaddr_t winvaddr; 221 1.1.2.2 nathanw uint32_t busbase; 222 1.1.2.2 nathanw 223 1.1.2.2 nathanw if (bpa >= sc->sc_ioout_xlate && 224 1.1.2.2 nathanw bpa < (sc->sc_ioout_xlate + VERDE_OUT_XLATE_IO_WIN_SIZE)) { 225 1.1.2.2 nathanw busbase = sc->sc_ioout_xlate; 226 1.1.2.2 nathanw winvaddr = sc->sc_iow_vaddr; 227 1.1.2.2 nathanw } else 228 1.1.2.2 nathanw return (EINVAL); 229 1.1.2.2 nathanw 230 1.1.2.2 nathanw if ((bpa + size) >= (busbase + VERDE_OUT_XLATE_IO_WIN_SIZE)) 231 1.1.2.2 nathanw return (EINVAL); 232 1.1.2.2 nathanw 233 1.1.2.2 nathanw /* 234 1.1.2.2 nathanw * Found the window -- PCI I/O space is mapped at a fixed 235 1.1.2.2 nathanw * virtual address by board-specific code. Translate the 236 1.1.2.2 nathanw * bus address to the virtual address. 237 1.1.2.2 nathanw */ 238 1.1.2.2 nathanw *bshp = winvaddr + (bpa - busbase); 239 1.1.2.2 nathanw 240 1.1.2.2 nathanw return (0); 241 1.1.2.2 nathanw } 242 1.1.2.2 nathanw 243 1.1.2.2 nathanw void 244 1.1.2.2 nathanw i80321_io_bs_unmap(void *t, bus_space_handle_t bsh, bus_size_t size) 245 1.1.2.2 nathanw { 246 1.1.2.2 nathanw 247 1.1.2.2 nathanw /* Nothing to do. */ 248 1.1.2.2 nathanw } 249 1.1.2.2 nathanw 250 1.1.2.2 nathanw int 251 1.1.2.2 nathanw i80321_io_bs_alloc(void *t, bus_addr_t rstart, bus_addr_t rend, 252 1.1.2.2 nathanw bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags, 253 1.1.2.2 nathanw bus_addr_t *bpap, bus_space_handle_t *bshp) 254 1.1.2.2 nathanw { 255 1.1.2.2 nathanw 256 1.1.2.2 nathanw panic("i80321_io_bs_alloc(): not implemented\n"); 257 1.1.2.2 nathanw } 258 1.1.2.2 nathanw 259 1.1.2.2 nathanw void 260 1.1.2.2 nathanw i80321_io_bs_free(void *t, bus_space_handle_t bsh, bus_size_t size) 261 1.1.2.2 nathanw { 262 1.1.2.2 nathanw 263 1.1.2.2 nathanw panic("i80321_io_bs_free(): not implemented\n"); 264 1.1.2.2 nathanw } 265 1.1.2.2 nathanw 266 1.1.2.2 nathanw void * 267 1.1.2.2 nathanw i80321_io_bs_vaddr(void *t, bus_space_handle_t bsh) 268 1.1.2.2 nathanw { 269 1.1.2.2 nathanw 270 1.1.2.2 nathanw /* Not supported. */ 271 1.1.2.2 nathanw return (NULL); 272 1.1.2.2 nathanw } 273 1.1.2.2 nathanw 274 1.1.2.2 nathanw /* *** Routines for PCI MEM. *** */ 275 1.1.2.2 nathanw 276 1.1.2.2 nathanw int 277 1.1.2.2 nathanw i80321_mem_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int flags, 278 1.1.2.2 nathanw bus_space_handle_t *bshp) 279 1.1.2.2 nathanw { 280 1.1.2.2 nathanw 281 1.1.2.2 nathanw struct i80321_softc *sc = t; 282 1.1.2.2 nathanw vaddr_t va; 283 1.1.2.2 nathanw uint32_t busbase; 284 1.1.2.2 nathanw paddr_t pa, endpa, physbase; 285 1.1.2.2 nathanw 286 1.1.2.2 nathanw if (bpa >= sc->sc_owin[0].owin_xlate_lo && 287 1.1.2.2 nathanw bpa < (sc->sc_owin[0].owin_xlate_lo + 288 1.1.2.2 nathanw VERDE_OUT_XLATE_MEM_WIN_SIZE)) { 289 1.1.2.2 nathanw busbase = sc->sc_owin[0].owin_xlate_lo; 290 1.1.2.2 nathanw physbase = sc->sc_iwin[1].iwin_xlate; 291 1.1.2.2 nathanw } else 292 1.1.2.2 nathanw return (EINVAL); 293 1.1.2.2 nathanw 294 1.1.2.2 nathanw if ((bpa + size) >= (busbase + VERDE_OUT_XLATE_MEM_WIN_SIZE)) 295 1.1.2.2 nathanw return (EINVAL); 296 1.1.2.2 nathanw 297 1.1.2.2 nathanw /* 298 1.1.2.2 nathanw * Found the window -- PCI MEM space is not mapped by allocating 299 1.1.2.2 nathanw * some kernel VA space and mapping the pages with pmap_enter(). 300 1.1.2.2 nathanw * pmap_enter() will map unmanaged pages as non-cacheable. 301 1.1.2.2 nathanw */ 302 1.1.2.2 nathanw pa = trunc_page((bpa - busbase) + physbase); 303 1.1.2.2 nathanw endpa = round_page(((bpa - busbase) + physbase) + size); 304 1.1.2.2 nathanw 305 1.1.2.2 nathanw va = uvm_km_valloc(kernel_map, endpa - pa); 306 1.1.2.2 nathanw if (va == 0) 307 1.1.2.2 nathanw return (ENOMEM); 308 1.1.2.2 nathanw 309 1.1.2.2 nathanw *bshp = va + (bpa & PAGE_MASK); 310 1.1.2.2 nathanw 311 1.1.2.2 nathanw for (; pa < endpa; pa += PAGE_SIZE, va += PAGE_SIZE) { 312 1.1.2.2 nathanw pmap_enter(pmap_kernel(), va, pa, 313 1.1.2.2 nathanw VM_PROT_READ | VM_PROT_WRITE, PMAP_WIRED); 314 1.1.2.2 nathanw } 315 1.1.2.2 nathanw pmap_update(pmap_kernel()); 316 1.1.2.2 nathanw 317 1.1.2.2 nathanw return (0); 318 1.1.2.2 nathanw } 319 1.1.2.2 nathanw 320 1.1.2.2 nathanw void 321 1.1.2.2 nathanw i80321_mem_bs_unmap(void *t, bus_space_handle_t bsh, bus_size_t size) 322 1.1.2.2 nathanw { 323 1.1.2.2 nathanw vaddr_t va, endva; 324 1.1.2.2 nathanw 325 1.1.2.2 nathanw va = trunc_page(bsh); 326 1.1.2.2 nathanw endva = round_page(bsh + size); 327 1.1.2.2 nathanw 328 1.1.2.2 nathanw /* Free the kernel virtual mapping. */ 329 1.1.2.2 nathanw uvm_km_free(kernel_map, va, endva - va); 330 1.1.2.2 nathanw } 331 1.1.2.2 nathanw 332 1.1.2.2 nathanw int 333 1.1.2.2 nathanw i80321_mem_bs_alloc(void *t, bus_addr_t rstart, bus_addr_t rend, 334 1.1.2.2 nathanw bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags, 335 1.1.2.2 nathanw bus_addr_t *bpap, bus_space_handle_t *bshp) 336 1.1.2.2 nathanw { 337 1.1.2.2 nathanw 338 1.1.2.2 nathanw panic("i80321_mem_bs_alloc(): not implemented\n"); 339 1.1.2.2 nathanw } 340 1.1.2.2 nathanw 341 1.1.2.2 nathanw void 342 1.1.2.2 nathanw i80321_mem_bs_free(void *t, bus_space_handle_t bsh, bus_size_t size) 343 1.1.2.2 nathanw { 344 1.1.2.2 nathanw 345 1.1.2.2 nathanw panic("i80321_mem_bs_free(): not implemented\n"); 346 1.1.2.2 nathanw } 347 1.1.2.2 nathanw 348 1.1.2.2 nathanw paddr_t 349 1.1.2.2 nathanw i80321_mem_bs_mmap(void *t, bus_addr_t addr, off_t off, int prot, int flags) 350 1.1.2.2 nathanw { 351 1.1.2.2 nathanw 352 1.1.2.2 nathanw /* XXX */ 353 1.1.2.2 nathanw return (-1); 354 1.1.2.2 nathanw } 355
Indexes created Mon Oct 20 11:09:49 GMT 2025