1 /*- 2 * Copyright (c) 2004, 2005 Jung-uk Kim <jkim@FreeBSD.org> 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 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include "opt_bus.h" 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/malloc.h> 35 #include <sys/kernel.h> 36 #include <sys/module.h> 37 #include <sys/bus.h> 38 #include <sys/lock.h> 39 #include <sys/mutex.h> 40 #include <sys/proc.h> 41 42 #include <dev/pci/pcivar.h> 43 #include <dev/pci/pcireg.h> 44 #include <pci/agppriv.h> 45 #include <pci/agpreg.h> 46 47 #include <vm/vm.h> 48 #include <vm/vm_object.h> 49 #include <vm/pmap.h> 50 #include <machine/bus.h> 51 #include <machine/resource.h> 52 #include <sys/rman.h> 53 54 /* XXX */ 55 extern void pci_cfgregwrite(int, int, int, int, uint32_t, int); 56 extern uint32_t pci_cfgregread(int, int, int, int, int); 57 58 static void agp_amd64_apbase_fixup(device_t); 59 60 static void agp_amd64_uli_init(device_t); 61 static int agp_amd64_uli_set_aperture(device_t, uint32_t); 62 63 static int agp_amd64_nvidia_match(uint16_t); 64 static void agp_amd64_nvidia_init(device_t); 65 static int agp_amd64_nvidia_set_aperture(device_t, uint32_t); 66 67 static int agp_amd64_via_match(void); 68 static void agp_amd64_via_init(device_t); 69 static int agp_amd64_via_set_aperture(device_t, uint32_t); 70 71 MALLOC_DECLARE(M_AGP); 72 73 #define AMD64_MAX_MCTRL 8 74 75 struct agp_amd64_softc { 76 struct agp_softc agp; 77 uint32_t initial_aperture; 78 struct agp_gatt *gatt; 79 uint32_t apbase; 80 int mctrl[AMD64_MAX_MCTRL]; 81 int n_mctrl; 82 int via_agp; 83 }; 84 85 static const char* 86 agp_amd64_match(device_t dev) 87 { 88 if (pci_get_class(dev) != PCIC_BRIDGE 89 || pci_get_subclass(dev) != PCIS_BRIDGE_HOST) 90 return NULL; 91 92 if (agp_find_caps(dev) == 0) 93 return NULL; 94 95 switch (pci_get_devid(dev)) { 96 case 0x74541022: 97 return ("AMD 8151 AGP graphics tunnel"); 98 case 0x07551039: 99 return ("SiS 755 host to AGP bridge"); 100 case 0x07601039: 101 return ("SiS 760 host to AGP bridge"); 102 case 0x168910b9: 103 return ("ULi M1689 AGP Controller"); 104 case 0x00d110de: 105 if (agp_amd64_nvidia_match(0x00d2)) 106 return NULL; 107 return ("NVIDIA nForce3 AGP Controller"); 108 case 0x00e110de: 109 if (agp_amd64_nvidia_match(0x00e2)) 110 return NULL; 111 return ("NVIDIA nForce3-250 AGP Controller"); 112 case 0x02041106: 113 return ("VIA 8380 host to PCI bridge"); 114 case 0x02381106: 115 return ("VIA 3238 host to PCI bridge"); 116 case 0x02821106: 117 return ("VIA K8T800Pro host to PCI bridge"); 118 case 0x31881106: 119 return ("VIA 8385 host to PCI bridge"); 120 }; 121 122 return NULL; 123 } 124 125 static int 126 agp_amd64_nvidia_match(uint16_t devid) 127 { 128 /* XXX nForce3 requires secondary AGP bridge at 0:11:0. */ 129 if (pci_cfgregread(0, 11, 0, PCIR_CLASS, 1) != PCIC_BRIDGE || 130 pci_cfgregread(0, 11, 0, PCIR_SUBCLASS, 1) != PCIS_BRIDGE_PCI || 131 pci_cfgregread(0, 11, 0, PCIR_VENDOR, 2) != 0x10de || 132 pci_cfgregread(0, 11, 0, PCIR_DEVICE, 2) != devid) 133 return ENXIO; 134 135 return 0; 136 } 137 138 static int 139 agp_amd64_via_match(void) 140 { 141 /* XXX Some VIA bridge requires secondary AGP bridge at 0:1:0. */ 142 if (pci_cfgregread(0, 1, 0, PCIR_CLASS, 1) != PCIC_BRIDGE || 143 pci_cfgregread(0, 1, 0, PCIR_SUBCLASS, 1) != PCIS_BRIDGE_PCI || 144 pci_cfgregread(0, 1, 0, PCIR_VENDOR, 2) != 0x1106 || 145 pci_cfgregread(0, 1, 0, PCIR_DEVICE, 2) != 0xb188 || 146 (pci_cfgregread(0, 1, 0, AGP_VIA_AGPSEL, 1) & 2)) 147 return 0; 148 149 return 1; 150 } 151 152 static int 153 agp_amd64_probe(device_t dev) 154 { 155 const char *desc; 156 157 if (resource_disabled("agp", device_get_unit(dev))) 158 return ENXIO; 159 if ((desc = agp_amd64_match(dev))) { 160 device_set_desc(dev, desc); 161 return BUS_PROBE_DEFAULT; 162 } 163 164 return ENXIO; 165 } 166 167 static int 168 agp_amd64_attach(device_t dev) 169 { 170 struct agp_amd64_softc *sc = device_get_softc(dev); 171 struct agp_gatt *gatt; 172 int i, n, error; 173 174 for (i = 0, n = 0; i < PCI_SLOTMAX && n < AMD64_MAX_MCTRL; i++) 175 if (pci_cfgregread(0, i, 3, 0, 4) == 0x11031022) { 176 sc->mctrl[n] = i; 177 n++; 178 } 179 180 if (n == 0) 181 return ENXIO; 182 183 sc->n_mctrl = n; 184 185 if (bootverbose) 186 device_printf(dev, "%d Miscellaneous Control unit(s) found.\n", 187 sc->n_mctrl); 188 189 if ((error = agp_generic_attach(dev))) 190 return error; 191 192 sc->initial_aperture = AGP_GET_APERTURE(dev); 193 194 for (;;) { 195 gatt = agp_alloc_gatt(dev); 196 if (gatt) 197 break; 198 199 /* 200 * Probably contigmalloc failure. Try reducing the 201 * aperture so that the gatt size reduces. 202 */ 203 if (AGP_SET_APERTURE(dev, AGP_GET_APERTURE(dev) / 2)) { 204 agp_generic_detach(dev); 205 return ENOMEM; 206 } 207 } 208 sc->gatt = gatt; 209 210 switch (pci_get_vendor(dev)) { 211 case 0x10b9: /* ULi */ 212 agp_amd64_uli_init(dev); 213 if (agp_amd64_uli_set_aperture(dev, sc->initial_aperture)) 214 return ENXIO; 215 break; 216 217 case 0x10de: /* nVidia */ 218 agp_amd64_nvidia_init(dev); 219 if (agp_amd64_nvidia_set_aperture(dev, sc->initial_aperture)) 220 return ENXIO; 221 break; 222 223 case 0x1106: /* VIA */ 224 sc->via_agp = agp_amd64_via_match(); 225 if (sc->via_agp) { 226 agp_amd64_via_init(dev); 227 if (agp_amd64_via_set_aperture(dev, 228 sc->initial_aperture)) 229 return ENXIO; 230 } 231 break; 232 } 233 234 /* Install the gatt and enable aperture. */ 235 for (i = 0; i < sc->n_mctrl; i++) { 236 pci_cfgregwrite(0, sc->mctrl[i], 3, AGP_AMD64_ATTBASE, 237 (uint32_t)(gatt->ag_physical >> 8) & AGP_AMD64_ATTBASE_MASK, 238 4); 239 pci_cfgregwrite(0, sc->mctrl[i], 3, AGP_AMD64_APCTRL, 240 (pci_cfgregread(0, sc->mctrl[i], 3, AGP_AMD64_APCTRL, 4) | 241 AGP_AMD64_APCTRL_GARTEN) & 242 ~(AGP_AMD64_APCTRL_DISGARTCPU | AGP_AMD64_APCTRL_DISGARTIO), 243 4); 244 } 245 246 agp_flush_cache(); 247 248 return 0; 249 } 250 251 static int 252 agp_amd64_detach(device_t dev) 253 { 254 struct agp_amd64_softc *sc = device_get_softc(dev); 255 int i, error; 256 257 if ((error = agp_generic_detach(dev))) 258 return error; 259 260 for (i = 0; i < sc->n_mctrl; i++) 261 pci_cfgregwrite(0, sc->mctrl[i], 3, AGP_AMD64_APCTRL, 262 pci_cfgregread(0, sc->mctrl[i], 3, AGP_AMD64_APCTRL, 4) & 263 ~AGP_AMD64_APCTRL_GARTEN, 4); 264 265 AGP_SET_APERTURE(dev, sc->initial_aperture); 266 agp_free_gatt(sc->gatt); 267 268 return 0; 269 } 270 271 static uint32_t agp_amd64_table[] = { 272 0x02000000, /* 32 MB */ 273 0x04000000, /* 64 MB */ 274 0x08000000, /* 128 MB */ 275 0x10000000, /* 256 MB */ 276 0x20000000, /* 512 MB */ 277 0x40000000, /* 1024 MB */ 278 0x80000000, /* 2048 MB */ 279 }; 280 281 #define AGP_AMD64_TABLE_SIZE \ 282 (sizeof(agp_amd64_table) / sizeof(agp_amd64_table[0])) 283 284 static uint32_t 285 agp_amd64_get_aperture(device_t dev) 286 { 287 struct agp_amd64_softc *sc = device_get_softc(dev); 288 uint32_t i; 289 290 i = (pci_cfgregread(0, sc->mctrl[0], 3, AGP_AMD64_APCTRL, 4) & 291 AGP_AMD64_APCTRL_SIZE_MASK) >> 1; 292 293 if (i >= AGP_AMD64_TABLE_SIZE) 294 return 0; 295 296 return (agp_amd64_table[i]); 297 } 298 299 static int 300 agp_amd64_set_aperture(device_t dev, uint32_t aperture) 301 { 302 struct agp_amd64_softc *sc = device_get_softc(dev); 303 uint32_t i; 304 int j; 305 306 for (i = 0; i < AGP_AMD64_TABLE_SIZE; i++) 307 if (agp_amd64_table[i] == aperture) 308 break; 309 if (i >= AGP_AMD64_TABLE_SIZE) 310 return EINVAL; 311 312 for (j = 0; j < sc->n_mctrl; j++) 313 pci_cfgregwrite(0, sc->mctrl[j], 3, AGP_AMD64_APCTRL, 314 (pci_cfgregread(0, sc->mctrl[j], 3, AGP_AMD64_APCTRL, 4) & 315 ~(AGP_AMD64_APCTRL_SIZE_MASK)) | (i << 1), 4); 316 317 switch (pci_get_vendor(dev)) { 318 case 0x10b9: /* ULi */ 319 return (agp_amd64_uli_set_aperture(dev, aperture)); 320 break; 321 322 case 0x10de: /* nVidia */ 323 return (agp_amd64_nvidia_set_aperture(dev, aperture)); 324 break; 325 326 case 0x1106: /* VIA */ 327 if (sc->via_agp) 328 return (agp_amd64_via_set_aperture(dev, aperture)); 329 break; 330 } 331 332 return 0; 333 } 334 335 static int 336 agp_amd64_bind_page(device_t dev, int offset, vm_offset_t physical) 337 { 338 struct agp_amd64_softc *sc = device_get_softc(dev); 339 340 if (offset < 0 || offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT)) 341 return EINVAL; 342 343 sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = physical; 344 return 0; 345 } 346 347 static int 348 agp_amd64_unbind_page(device_t dev, int offset) 349 { 350 struct agp_amd64_softc *sc = device_get_softc(dev); 351 352 if (offset < 0 || offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT)) 353 return EINVAL; 354 355 sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = 0; 356 return 0; 357 } 358 359 static void 360 agp_amd64_flush_tlb(device_t dev) 361 { 362 struct agp_amd64_softc *sc = device_get_softc(dev); 363 int i; 364 365 for (i = 0; i < sc->n_mctrl; i++) 366 pci_cfgregwrite(0, sc->mctrl[i], 3, AGP_AMD64_CACHECTRL, 367 pci_cfgregread(0, sc->mctrl[i], 3, AGP_AMD64_CACHECTRL, 4) | 368 AGP_AMD64_CACHECTRL_INVGART, 4); 369 } 370 371 static void 372 agp_amd64_apbase_fixup(device_t dev) 373 { 374 struct agp_amd64_softc *sc = device_get_softc(dev); 375 uint32_t apbase; 376 int i; 377 378 sc->apbase = rman_get_start(sc->agp.as_aperture); 379 apbase = (sc->apbase >> 25) & AGP_AMD64_APBASE_MASK; 380 for (i = 0; i < sc->n_mctrl; i++) 381 pci_cfgregwrite(0, sc->mctrl[i], 3, 382 AGP_AMD64_APBASE, apbase, 4); 383 } 384 385 static void 386 agp_amd64_uli_init(device_t dev) 387 { 388 struct agp_amd64_softc *sc = device_get_softc(dev); 389 390 agp_amd64_apbase_fixup(dev); 391 pci_write_config(dev, AGP_AMD64_ULI_APBASE, 392 (pci_read_config(dev, AGP_AMD64_ULI_APBASE, 4) & 0x0000000f) | 393 sc->apbase, 4); 394 pci_write_config(dev, AGP_AMD64_ULI_HTT_FEATURE, sc->apbase, 4); 395 } 396 397 static int 398 agp_amd64_uli_set_aperture(device_t dev, uint32_t aperture) 399 { 400 struct agp_amd64_softc *sc = device_get_softc(dev); 401 402 switch (aperture) { 403 case 0x02000000: /* 32 MB */ 404 case 0x04000000: /* 64 MB */ 405 case 0x08000000: /* 128 MB */ 406 case 0x10000000: /* 256 MB */ 407 break; 408 default: 409 return EINVAL; 410 } 411 412 pci_write_config(dev, AGP_AMD64_ULI_ENU_SCR, 413 sc->apbase + aperture - 1, 4); 414 415 return 0; 416 } 417 418 static void 419 agp_amd64_nvidia_init(device_t dev) 420 { 421 struct agp_amd64_softc *sc = device_get_softc(dev); 422 423 agp_amd64_apbase_fixup(dev); 424 pci_write_config(dev, AGP_AMD64_NVIDIA_0_APBASE, 425 (pci_read_config(dev, AGP_AMD64_NVIDIA_0_APBASE, 4) & 0x0000000f) | 426 sc->apbase, 4); 427 pci_cfgregwrite(0, 11, 0, AGP_AMD64_NVIDIA_1_APBASE1, sc->apbase, 4); 428 pci_cfgregwrite(0, 11, 0, AGP_AMD64_NVIDIA_1_APBASE2, sc->apbase, 4); 429 } 430 431 static int 432 agp_amd64_nvidia_set_aperture(device_t dev, uint32_t aperture) 433 { 434 struct agp_amd64_softc *sc = device_get_softc(dev); 435 uint32_t apsize; 436 437 switch (aperture) { 438 case 0x02000000: apsize = 0x0f; break; /* 32 MB */ 439 case 0x04000000: apsize = 0x0e; break; /* 64 MB */ 440 case 0x08000000: apsize = 0x0c; break; /* 128 MB */ 441 case 0x10000000: apsize = 0x08; break; /* 256 MB */ 442 case 0x20000000: apsize = 0x00; break; /* 512 MB */ 443 default: 444 return EINVAL; 445 } 446 447 pci_cfgregwrite(0, 11, 0, AGP_AMD64_NVIDIA_1_APSIZE, 448 (pci_cfgregread(0, 11, 0, AGP_AMD64_NVIDIA_1_APSIZE, 4) & 449 0xfffffff0) | apsize, 4); 450 pci_cfgregwrite(0, 11, 0, AGP_AMD64_NVIDIA_1_APLIMIT1, 451 sc->apbase + aperture - 1, 4); 452 pci_cfgregwrite(0, 11, 0, AGP_AMD64_NVIDIA_1_APLIMIT2, 453 sc->apbase + aperture - 1, 4); 454 455 return 0; 456 } 457 458 static void 459 agp_amd64_via_init(device_t dev) 460 { 461 struct agp_amd64_softc *sc = device_get_softc(dev); 462 463 agp_amd64_apbase_fixup(dev); 464 pci_cfgregwrite(0, 1, 0, AGP3_VIA_ATTBASE, sc->gatt->ag_physical, 4); 465 pci_cfgregwrite(0, 1, 0, AGP3_VIA_GARTCTRL, 466 pci_cfgregread(0, 1, 0, AGP3_VIA_ATTBASE, 4) | 0x180, 4); 467 } 468 469 static int 470 agp_amd64_via_set_aperture(device_t dev, uint32_t aperture) 471 { 472 uint32_t apsize; 473 474 apsize = ((aperture - 1) >> 20) ^ 0xff; 475 if ((((apsize ^ 0xff) << 20) | ((1 << 20) - 1)) + 1 != aperture) 476 return EINVAL; 477 pci_cfgregwrite(0, 1, 0, AGP3_VIA_APSIZE, apsize, 1); 478 479 return 0; 480 } 481 482 static device_method_t agp_amd64_methods[] = { 483 /* Device interface */ 484 DEVMETHOD(device_probe, agp_amd64_probe), 485 DEVMETHOD(device_attach, agp_amd64_attach), 486 DEVMETHOD(device_detach, agp_amd64_detach), 487 DEVMETHOD(device_shutdown, bus_generic_shutdown), 488 DEVMETHOD(device_suspend, bus_generic_suspend), 489 DEVMETHOD(device_resume, bus_generic_resume), 490 491 /* AGP interface */ 492 DEVMETHOD(agp_get_aperture, agp_amd64_get_aperture), 493 DEVMETHOD(agp_set_aperture, agp_amd64_set_aperture), 494 DEVMETHOD(agp_bind_page, agp_amd64_bind_page), 495 DEVMETHOD(agp_unbind_page, agp_amd64_unbind_page), 496 DEVMETHOD(agp_flush_tlb, agp_amd64_flush_tlb), 497 DEVMETHOD(agp_enable, agp_generic_enable), 498 DEVMETHOD(agp_alloc_memory, agp_generic_alloc_memory), 499 DEVMETHOD(agp_free_memory, agp_generic_free_memory), 500 DEVMETHOD(agp_bind_memory, agp_generic_bind_memory), 501 DEVMETHOD(agp_unbind_memory, agp_generic_unbind_memory), 502 503 { 0, 0 } 504 }; 505 506 static driver_t agp_amd64_driver = { 507 "agp", 508 agp_amd64_methods, 509 sizeof(struct agp_amd64_softc), 510 }; 511 512 static devclass_t agp_devclass; 513 514 DRIVER_MODULE(agp_amd64, hostb, agp_amd64_driver, agp_devclass, 0, 0); 515 MODULE_DEPEND(agp_amd64, agp, 1, 1, 1); 516 MODULE_DEPEND(agp_amd64, pci, 1, 1, 1); 517