agp_amd64.c revision 1.6
1 /*- 2 * Copyright (c) 2004, 2005 Jung-uk Kim <jkim (at) 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 __KERNEL_RCSID(0, "$NetBSD: agp_amd64.c,v 1.6 2010/11/13 13:52:04 uebayasi Exp $"); 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/malloc.h> 33 #include <sys/kernel.h> 34 #include <sys/proc.h> 35 #include <sys/conf.h> 36 #include <sys/device.h> 37 #include <sys/agpio.h> 38 39 #include <dev/pci/pcivar.h> 40 #include <dev/pci/pcireg.h> 41 #include <dev/pci/agpvar.h> 42 #include <dev/pci/agpreg.h> 43 44 #include <dev/pci/pcidevs.h> 45 46 #include <sys/bus.h> 47 48 49 #define AMD64_MAX_MCTRL 8 50 51 /* XXX nForce3 requires secondary AGP bridge at 0:11:0. */ 52 #define AGP_AMD64_NVIDIA_PCITAG(pc) pci_make_tag(pc, 0, 11, 0) 53 /* XXX Some VIA bridge requires secondary AGP bridge at 0:1:0. */ 54 #define AGP_AMD64_VIA_PCITAG(pc) pci_make_tag(pc, 0, 1, 0) 55 56 57 static uint32_t agp_amd64_get_aperture(struct agp_softc *); 58 static int agp_amd64_set_aperture(struct agp_softc *, uint32_t); 59 static int agp_amd64_bind_page(struct agp_softc *, off_t, bus_addr_t); 60 static int agp_amd64_unbind_page(struct agp_softc *, off_t); 61 static void agp_amd64_flush_tlb(struct agp_softc *); 62 63 static void agp_amd64_apbase_fixup(struct agp_softc *); 64 65 static void agp_amd64_uli_init(struct agp_softc *); 66 static int agp_amd64_uli_set_aperture(struct agp_softc *, uint32_t); 67 68 static int agp_amd64_nvidia_match(const struct pci_attach_args *, uint16_t); 69 static void agp_amd64_nvidia_init(struct agp_softc *); 70 static int agp_amd64_nvidia_set_aperture(struct agp_softc *, uint32_t); 71 72 static int agp_amd64_via_match(const struct pci_attach_args *); 73 static void agp_amd64_via_init(struct agp_softc *); 74 static int agp_amd64_via_set_aperture(struct agp_softc *, uint32_t); 75 76 77 struct agp_amd64_softc { 78 uint32_t initial_aperture; 79 struct agp_gatt *gatt; 80 uint32_t apbase; 81 pcitag_t ctrl_tag; /* use NVIDIA and VIA */ 82 pcitag_t mctrl_tag[AMD64_MAX_MCTRL]; 83 int n_mctrl; 84 int via_agp; 85 }; 86 87 static struct agp_methods agp_amd64_methods = { 88 agp_amd64_get_aperture, 89 agp_amd64_set_aperture, 90 agp_amd64_bind_page, 91 agp_amd64_unbind_page, 92 agp_amd64_flush_tlb, 93 agp_generic_enable, 94 agp_generic_alloc_memory, 95 agp_generic_free_memory, 96 agp_generic_bind_memory, 97 agp_generic_unbind_memory, 98 }; 99 100 101 int 102 agp_amd64_match(const struct pci_attach_args *pa) 103 { 104 105 switch (PCI_VENDOR(pa->pa_id)) { 106 case PCI_VENDOR_AMD: 107 switch (PCI_PRODUCT(pa->pa_id)) { 108 case PCI_PRODUCT_AMD_AGP8151_DEV: 109 return 1; 110 } 111 break; 112 113 case PCI_VENDOR_SIS: 114 switch (PCI_PRODUCT(pa->pa_id)) { 115 case PCI_PRODUCT_SIS_755: 116 case PCI_PRODUCT_SIS_760: 117 return 1; 118 } 119 break; 120 121 case PCI_VENDOR_ALI: 122 switch (PCI_PRODUCT(pa->pa_id)) { 123 case PCI_PRODUCT_ALI_M1689: 124 return 1; 125 } 126 break; 127 128 case PCI_VENDOR_NVIDIA: 129 switch (PCI_PRODUCT(pa->pa_id)) { 130 case PCI_PRODUCT_NVIDIA_NFORCE3_PCHB: 131 return agp_amd64_nvidia_match(pa, 132 PCI_PRODUCT_NVIDIA_NFORCE3_PPB2); 133 134 /* NOTREACHED */ 135 136 case PCI_PRODUCT_NVIDIA_NFORCE3_250_PCHB: 137 return agp_amd64_nvidia_match(pa, 138 PCI_PRODUCT_NVIDIA_NFORCE3_250_AGP); 139 140 /* NOTREACHED */ 141 } 142 break; 143 144 case PCI_VENDOR_VIATECH: 145 switch (PCI_PRODUCT(pa->pa_id)) { 146 case PCI_PRODUCT_VIATECH_K8M800_0: 147 case PCI_PRODUCT_VIATECH_K8T890_0: 148 case PCI_PRODUCT_VIATECH_K8HTB_0: 149 case PCI_PRODUCT_VIATECH_K8HTB: 150 return 1; 151 } 152 break; 153 } 154 155 return 0; 156 } 157 158 static int 159 agp_amd64_nvidia_match(const struct pci_attach_args *pa, uint16_t devid) 160 { 161 pcitag_t tag; 162 pcireg_t reg; 163 164 tag = AGP_AMD64_NVIDIA_PCITAG(pa->pa_pc); 165 166 reg = pci_conf_read(pa->pa_pc, tag, PCI_CLASS_REG); 167 if (PCI_CLASS(reg) != PCI_CLASS_BRIDGE || 168 PCI_SUBCLASS(reg) != PCI_SUBCLASS_BRIDGE_PCI) 169 return 0; 170 171 reg = pci_conf_read(pa->pa_pc, tag, PCI_ID_REG); 172 if (PCI_VENDOR(reg) != PCI_VENDOR_NVIDIA || PCI_PRODUCT(reg) != devid) 173 return 0; 174 175 return 1; 176 } 177 178 static int 179 agp_amd64_via_match(const struct pci_attach_args *pa) 180 { 181 pcitag_t tag; 182 pcireg_t reg; 183 184 tag = AGP_AMD64_VIA_PCITAG(pa->pa_pc); 185 186 reg = pci_conf_read(pa->pa_pc, tag, PCI_CLASS_REG); 187 if (PCI_CLASS(reg) != PCI_CLASS_BRIDGE || 188 PCI_SUBCLASS(reg) != PCI_SUBCLASS_BRIDGE_PCI) 189 return 0; 190 191 reg = pci_conf_read(pa->pa_pc, tag, PCI_ID_REG); 192 if (PCI_VENDOR(reg) != PCI_VENDOR_VIATECH || 193 PCI_PRODUCT(reg) != PCI_PRODUCT_VIATECH_K8HTB_AGP) 194 return 0; 195 196 return 1; 197 } 198 199 int 200 agp_amd64_attach(device_t parent, device_t self, void *aux) 201 { 202 struct agp_softc *sc = device_private(self); 203 struct agp_amd64_softc *asc; 204 struct pci_attach_args *pa = aux; 205 struct agp_gatt *gatt; 206 pcitag_t tag; 207 pcireg_t id, attbase, apctrl; 208 int maxdevs, i, n; 209 210 asc = malloc(sizeof(struct agp_amd64_softc), M_AGP, M_NOWAIT | M_ZERO); 211 if (asc == NULL) { 212 aprint_error(": can't allocate softc\n"); 213 return ENOMEM; 214 } 215 216 if (agp_map_aperture(pa, sc, AGP_APBASE) != 0) { 217 aprint_error(": can't map aperture\n"); 218 free(asc, M_AGP); 219 return ENXIO; 220 } 221 222 maxdevs = pci_bus_maxdevs(pa->pa_pc, 0); 223 for (i = 0, n = 0; i < maxdevs && n < AMD64_MAX_MCTRL; i++) { 224 tag = pci_make_tag(pa->pa_pc, 0, i, 3); 225 id = pci_conf_read(pa->pa_pc, tag, PCI_ID_REG); 226 if (PCI_VENDOR(id) == PCI_VENDOR_AMD && 227 PCI_PRODUCT(id) == PCI_PRODUCT_AMD_AMD64_MISC) { 228 asc->mctrl_tag[n] = tag; 229 n++; 230 } 231 } 232 if (n == 0) 233 return ENXIO; 234 asc->n_mctrl = n; 235 236 aprint_normal(": %d Miscellaneous Control unit(s) found.\n", 237 asc->n_mctrl); 238 aprint_normal("%s", device_xname(self)); 239 240 sc->as_chipc = asc; 241 sc->as_methods = &agp_amd64_methods; 242 pci_get_capability(pa->pa_pc, pa->pa_tag, PCI_CAP_AGP, &sc->as_capoff, 243 NULL); 244 asc->initial_aperture = AGP_GET_APERTURE(sc); 245 246 for (;;) { 247 gatt = agp_alloc_gatt(sc); 248 if (gatt) 249 break; 250 251 /* 252 * Probably contigmalloc failure. Try reducing the 253 * aperture so that the gatt size reduces. 254 */ 255 if (AGP_SET_APERTURE(sc, AGP_GET_APERTURE(sc) / 2)) { 256 agp_generic_detach(sc); 257 return ENOMEM; 258 } 259 } 260 asc->gatt = gatt; 261 262 switch (PCI_VENDOR(sc->as_id)) { 263 case PCI_VENDOR_ALI: 264 agp_amd64_uli_init(sc); 265 if (agp_amd64_uli_set_aperture(sc, asc->initial_aperture)) 266 return ENXIO; 267 break; 268 269 case PCI_VENDOR_NVIDIA: 270 asc->ctrl_tag = AGP_AMD64_NVIDIA_PCITAG(pa->pa_pc); 271 agp_amd64_nvidia_init(sc); 272 if (agp_amd64_nvidia_set_aperture(sc, asc->initial_aperture)) 273 return ENXIO; 274 break; 275 276 case PCI_VENDOR_VIATECH: 277 asc->via_agp = agp_amd64_via_match(pa); 278 if (asc->via_agp) { 279 asc->ctrl_tag = AGP_AMD64_VIA_PCITAG(pa->pa_pc); 280 agp_amd64_via_init(sc); 281 if (agp_amd64_via_set_aperture(sc, 282 asc->initial_aperture)) 283 return ENXIO; 284 } 285 break; 286 } 287 288 /* Install the gatt and enable aperture. */ 289 attbase = (uint32_t)(gatt->ag_physical >> 8) & AGP_AMD64_ATTBASE_MASK; 290 for (i = 0; i < asc->n_mctrl; i++) { 291 pci_conf_write(pa->pa_pc, asc->mctrl_tag[i], AGP_AMD64_ATTBASE, 292 attbase); 293 apctrl = pci_conf_read(pa->pa_pc, asc->mctrl_tag[i], 294 AGP_AMD64_APCTRL); 295 apctrl |= AGP_AMD64_APCTRL_GARTEN; 296 apctrl &= 297 ~(AGP_AMD64_APCTRL_DISGARTCPU | AGP_AMD64_APCTRL_DISGARTIO); 298 pci_conf_write(pa->pa_pc, asc->mctrl_tag[i], AGP_AMD64_APCTRL, 299 apctrl); 300 } 301 302 agp_flush_cache(); 303 304 return 0; 305 } 306 307 308 static uint32_t agp_amd64_table[] = { 309 0x02000000, /* 32 MB */ 310 0x04000000, /* 64 MB */ 311 0x08000000, /* 128 MB */ 312 0x10000000, /* 256 MB */ 313 0x20000000, /* 512 MB */ 314 0x40000000, /* 1024 MB */ 315 0x80000000, /* 2048 MB */ 316 }; 317 318 #define AGP_AMD64_TABLE_SIZE \ 319 (sizeof(agp_amd64_table) / sizeof(agp_amd64_table[0])) 320 321 static uint32_t 322 agp_amd64_get_aperture(struct agp_softc *sc) 323 { 324 struct agp_amd64_softc *asc = sc->as_chipc; 325 uint32_t i; 326 327 i = (pci_conf_read(sc->as_pc, asc->mctrl_tag[0], AGP_AMD64_APCTRL) & 328 AGP_AMD64_APCTRL_SIZE_MASK) >> 1; 329 330 if (i >= AGP_AMD64_TABLE_SIZE) 331 return 0; 332 333 return agp_amd64_table[i]; 334 } 335 336 static int 337 agp_amd64_set_aperture(struct agp_softc *sc, uint32_t aperture) 338 { 339 struct agp_amd64_softc *asc = sc->as_chipc; 340 uint32_t i; 341 pcireg_t apctrl; 342 int j; 343 344 for (i = 0; i < AGP_AMD64_TABLE_SIZE; i++) 345 if (agp_amd64_table[i] == aperture) 346 break; 347 if (i >= AGP_AMD64_TABLE_SIZE) 348 return EINVAL; 349 350 for (j = 0; j < asc->n_mctrl; j++) { 351 apctrl = pci_conf_read(sc->as_pc, asc->mctrl_tag[0], 352 AGP_AMD64_APCTRL); 353 pci_conf_write(sc->as_pc, asc->mctrl_tag[0], AGP_AMD64_APCTRL, 354 (apctrl & ~(AGP_AMD64_APCTRL_SIZE_MASK)) | (i << 1)); 355 } 356 357 switch (PCI_VENDOR(sc->as_id)) { 358 case PCI_VENDOR_ALI: 359 return agp_amd64_uli_set_aperture(sc, aperture); 360 break; 361 362 case PCI_VENDOR_NVIDIA: 363 return agp_amd64_nvidia_set_aperture(sc, aperture); 364 break; 365 366 case PCI_VENDOR_VIATECH: 367 if (asc->via_agp) 368 return agp_amd64_via_set_aperture(sc, aperture); 369 break; 370 } 371 372 return 0; 373 } 374 375 static int 376 agp_amd64_bind_page(struct agp_softc *sc, off_t offset, bus_addr_t physical) 377 { 378 struct agp_amd64_softc *asc = sc->as_chipc; 379 380 if (offset < 0 || offset >= (asc->gatt->ag_entries << AGP_PAGE_SHIFT)) 381 return EINVAL; 382 383 asc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = 384 (physical & 0xfffff000) | ((physical >> 28) & 0x00000ff0) | 3; 385 386 return 0; 387 } 388 389 static int 390 agp_amd64_unbind_page(struct agp_softc *sc, off_t offset) 391 { 392 struct agp_amd64_softc *asc = sc->as_chipc; 393 394 if (offset < 0 || offset >= (asc->gatt->ag_entries << AGP_PAGE_SHIFT)) 395 return EINVAL; 396 397 asc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = 0; 398 399 return 0; 400 } 401 402 static void 403 agp_amd64_flush_tlb(struct agp_softc *sc) 404 { 405 struct agp_amd64_softc *asc = sc->as_chipc; 406 pcireg_t cachectrl; 407 int i; 408 409 for (i = 0; i < asc->n_mctrl; i++) { 410 cachectrl = pci_conf_read(sc->as_pc, asc->mctrl_tag[i], 411 AGP_AMD64_CACHECTRL); 412 pci_conf_write(sc->as_pc, asc->mctrl_tag[i], 413 AGP_AMD64_CACHECTRL, 414 cachectrl | AGP_AMD64_CACHECTRL_INVGART); 415 } 416 } 417 418 static void 419 agp_amd64_apbase_fixup(struct agp_softc *sc) 420 { 421 struct agp_amd64_softc *asc = sc->as_chipc; 422 uint32_t apbase; 423 int i; 424 425 apbase = pci_conf_read(sc->as_pc, sc->as_tag, AGP_APBASE); 426 asc->apbase = PCI_MAPREG_MEM_ADDR(apbase); 427 apbase = (asc->apbase >> 25) & AGP_AMD64_APBASE_MASK; 428 for (i = 0; i < asc->n_mctrl; i++) 429 pci_conf_write(sc->as_pc, asc->mctrl_tag[i], AGP_AMD64_APBASE, 430 apbase); 431 } 432 433 static void 434 agp_amd64_uli_init(struct agp_softc *sc) 435 { 436 struct agp_amd64_softc *asc = sc->as_chipc; 437 pcireg_t apbase; 438 439 agp_amd64_apbase_fixup(sc); 440 apbase = pci_conf_read(sc->as_pc, sc->as_tag, AGP_AMD64_ULI_APBASE); 441 pci_conf_write(sc->as_pc, sc->as_tag, AGP_AMD64_ULI_APBASE, 442 (apbase & 0x0000000f) | asc->apbase); 443 pci_conf_write(sc->as_pc, sc->as_tag, AGP_AMD64_ULI_HTT_FEATURE, 444 asc->apbase); 445 } 446 447 static int 448 agp_amd64_uli_set_aperture(struct agp_softc *sc, uint32_t aperture) 449 { 450 struct agp_amd64_softc *asc = sc->as_chipc; 451 452 switch (aperture) { 453 case 0x02000000: /* 32 MB */ 454 case 0x04000000: /* 64 MB */ 455 case 0x08000000: /* 128 MB */ 456 case 0x10000000: /* 256 MB */ 457 break; 458 default: 459 return EINVAL; 460 } 461 462 pci_conf_write(sc->as_pc, sc->as_tag, AGP_AMD64_ULI_ENU_SCR, 463 asc->apbase + aperture - 1); 464 465 return 0; 466 } 467 468 static void 469 agp_amd64_nvidia_init(struct agp_softc *sc) 470 { 471 struct agp_amd64_softc *asc = sc->as_chipc; 472 pcireg_t apbase; 473 474 agp_amd64_apbase_fixup(sc); 475 apbase = 476 pci_conf_read(sc->as_pc, sc->as_tag, AGP_AMD64_NVIDIA_0_APBASE); 477 pci_conf_write(sc->as_pc, sc->as_tag, AGP_AMD64_NVIDIA_0_APBASE, 478 (apbase & 0x0000000f) | asc->apbase); 479 pci_conf_write(sc->as_pc, asc->ctrl_tag, AGP_AMD64_NVIDIA_1_APBASE1, 480 asc->apbase); 481 pci_conf_write(sc->as_pc, asc->ctrl_tag, AGP_AMD64_NVIDIA_1_APBASE2, 482 asc->apbase); 483 } 484 485 static int 486 agp_amd64_nvidia_set_aperture(struct agp_softc *sc, uint32_t aperture) 487 { 488 struct agp_amd64_softc *asc = sc->as_chipc; 489 uint32_t apsize; 490 491 switch (aperture) { 492 case 0x02000000: apsize = 0x0f; break; /* 32 MB */ 493 case 0x04000000: apsize = 0x0e; break; /* 64 MB */ 494 case 0x08000000: apsize = 0x0c; break; /* 128 MB */ 495 case 0x10000000: apsize = 0x08; break; /* 256 MB */ 496 case 0x20000000: apsize = 0x00; break; /* 512 MB */ 497 default: 498 return EINVAL; 499 } 500 501 pci_conf_write(sc->as_pc, asc->ctrl_tag, AGP_AMD64_NVIDIA_1_APSIZE, 502 (pci_conf_read(sc->as_pc, asc->ctrl_tag, 503 AGP_AMD64_NVIDIA_1_APSIZE) & 0xfffffff0) | apsize); 504 pci_conf_write(sc->as_pc, asc->ctrl_tag, AGP_AMD64_NVIDIA_1_APLIMIT1, 505 asc->apbase + aperture - 1); 506 pci_conf_write(sc->as_pc, asc->ctrl_tag, AGP_AMD64_NVIDIA_1_APLIMIT2, 507 asc->apbase + aperture - 1); 508 509 return 0; 510 } 511 512 static void 513 agp_amd64_via_init(struct agp_softc *sc) 514 { 515 struct agp_amd64_softc *asc = sc->as_chipc; 516 517 agp_amd64_apbase_fixup(sc); 518 pci_conf_write(sc->as_pc, asc->ctrl_tag, AGP3_VIA_ATTBASE, 519 asc->gatt->ag_physical); 520 pci_conf_write(sc->as_pc, asc->ctrl_tag, AGP3_VIA_GARTCTRL, 521 pci_conf_read(sc->as_pc, asc->ctrl_tag, AGP3_VIA_ATTBASE) | 0x180); 522 } 523 524 static int 525 agp_amd64_via_set_aperture(struct agp_softc *sc, uint32_t aperture) 526 { 527 struct agp_amd64_softc *asc = sc->as_chipc; 528 uint32_t apsize; 529 530 apsize = ((aperture - 1) >> 20) ^ 0xff; 531 if ((((apsize ^ 0xff) << 20) | ((1 << 20) - 1)) + 1 != aperture) 532 return EINVAL; 533 pci_conf_write(sc->as_pc, asc->ctrl_tag, AGP3_VIA_APSIZE, 534 (pci_conf_read(sc->as_pc, asc->ctrl_tag, AGP3_VIA_APSIZE) & ~0xff) | 535 apsize); 536 537 return 0; 538 } 539
Indexes created Mon Oct 20 16:09:52 GMT 2025