agp_amd64.c revision 153572
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: head/sys/dev/agp/agp_amd64.c 153572 2005-12-20 21:12:26Z jhb $"); 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 */ 55extern void pci_cfgregwrite(int, int, int, int, uint32_t, int); 56extern uint32_t pci_cfgregread(int, int, int, int, int); 57 58static void agp_amd64_apbase_fixup(device_t); 59 60static void agp_amd64_uli_init(device_t); 61static int agp_amd64_uli_set_aperture(device_t, uint32_t); 62 63static int agp_amd64_nvidia_match(uint16_t); 64static void agp_amd64_nvidia_init(device_t); 65static int agp_amd64_nvidia_set_aperture(device_t, uint32_t); 66 67static int agp_amd64_via_match(void); 68static void agp_amd64_via_init(device_t); 69static int agp_amd64_via_set_aperture(device_t, uint32_t); 70 71MALLOC_DECLARE(M_AGP); 72 73#define AMD64_MAX_MCTRL 8 74 75struct 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 85static const char* 86agp_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 0x168910b9: 101 return ("ULi M1689 AGP Controller"); 102 case 0x00d110de: 103 if (agp_amd64_nvidia_match(0x00d2)) 104 return NULL; 105 return ("NVIDIA nForce3 AGP Controller"); 106 case 0x00e110de: 107 if (agp_amd64_nvidia_match(0x00e2)) 108 return NULL; 109 return ("NVIDIA nForce3-250 AGP Controller"); 110 case 0x02041106: 111 return ("VIA 8380 host to PCI bridge"); 112 case 0x02381106: 113 return ("VIA 3238 host to PCI bridge"); 114 case 0x02821106: 115 return ("VIA K8T800Pro host to PCI bridge"); 116 case 0x31881106: 117 return ("VIA 8385 host to PCI bridge"); 118 }; 119 120 return NULL; 121} 122 123static int 124agp_amd64_nvidia_match(uint16_t devid) 125{ 126 /* XXX nForce3 requires secondary AGP bridge at 0:11:0. */ 127 if (pci_cfgregread(0, 11, 0, PCIR_CLASS, 1) != PCIC_BRIDGE || 128 pci_cfgregread(0, 11, 0, PCIR_SUBCLASS, 1) != PCIS_BRIDGE_PCI || 129 pci_cfgregread(0, 11, 0, PCIR_VENDOR, 2) != 0x10de || 130 pci_cfgregread(0, 11, 0, PCIR_DEVICE, 2) != devid) 131 return ENXIO; 132 133 return 0; 134} 135 136static int 137agp_amd64_via_match(void) 138{ 139 /* XXX Some VIA bridge requires secondary AGP bridge at 0:1:0. */ 140 if (pci_cfgregread(0, 1, 0, PCIR_CLASS, 1) != PCIC_BRIDGE || 141 pci_cfgregread(0, 1, 0, PCIR_SUBCLASS, 1) != PCIS_BRIDGE_PCI || 142 pci_cfgregread(0, 1, 0, PCIR_VENDOR, 2) != 0x1106 || 143 pci_cfgregread(0, 1, 0, PCIR_DEVICE, 2) != 0xb188 || 144 (pci_cfgregread(0, 1, 0, AGP_VIA_AGPSEL, 1) & 2)) 145 return 0; 146 147 return 1; 148} 149 150static int 151agp_amd64_probe(device_t dev) 152{ 153 const char *desc; 154 155 if (resource_disabled("agp", device_get_unit(dev))) 156 return ENXIO; 157 if ((desc = agp_amd64_match(dev))) { 158 device_set_desc(dev, desc); 159 return BUS_PROBE_DEFAULT; 160 } 161 162 return ENXIO; 163} 164 165static int 166agp_amd64_attach(device_t dev) 167{ 168 struct agp_amd64_softc *sc = device_get_softc(dev); 169 struct agp_gatt *gatt; 170 int i, n, error; 171 172 for (i = 0, n = 0; i < PCI_SLOTMAX && n < AMD64_MAX_MCTRL; i++) 173 if (pci_cfgregread(0, i, 3, 0, 4) == 0x11031022) { 174 sc->mctrl[n] = i; 175 n++; 176 } 177 178 if (n == 0) 179 return ENXIO; 180 181 sc->n_mctrl = n; 182 183 if (bootverbose) { 184 device_printf(dev, "%d Miscellaneous Control unit(s) found.\n", 185 sc->n_mctrl); 186 for (i = 0; i < sc->n_mctrl; i++) 187 device_printf(dev, "Aperture Base[%d]: 0x%08x\n", i, 188 pci_cfgregread(0, sc->mctrl[i], 3, 189 AGP_AMD64_APBASE, 4) & AGP_AMD64_APBASE_MASK); 190 } 191 192 if ((error = agp_generic_attach(dev))) 193 return error; 194 195 sc->initial_aperture = AGP_GET_APERTURE(dev); 196 197 for (;;) { 198 gatt = agp_alloc_gatt(dev); 199 if (gatt) 200 break; 201 202 /* 203 * Probably contigmalloc failure. Try reducing the 204 * aperture so that the gatt size reduces. 205 */ 206 if (AGP_SET_APERTURE(dev, AGP_GET_APERTURE(dev) / 2)) { 207 agp_generic_detach(dev); 208 return ENOMEM; 209 } 210 } 211 sc->gatt = gatt; 212 213 switch (pci_get_vendor(dev)) { 214 case 0x10b9: /* ULi */ 215 agp_amd64_uli_init(dev); 216 if (agp_amd64_uli_set_aperture(dev, sc->initial_aperture)) 217 return ENXIO; 218 break; 219 220 case 0x10de: /* nVidia */ 221 agp_amd64_nvidia_init(dev); 222 if (agp_amd64_nvidia_set_aperture(dev, sc->initial_aperture)) 223 return ENXIO; 224 break; 225 226 case 0x1106: /* VIA */ 227 sc->via_agp = agp_amd64_via_match(); 228 if (sc->via_agp) { 229 agp_amd64_via_init(dev); 230 if (agp_amd64_via_set_aperture(dev, 231 sc->initial_aperture)) 232 return ENXIO; 233 } 234 break; 235 } 236 237 /* Install the gatt and enable aperture. */ 238 for (i = 0; i < sc->n_mctrl; i++) { 239 pci_cfgregwrite(0, sc->mctrl[i], 3, AGP_AMD64_ATTBASE, 240 (uint32_t)(gatt->ag_physical >> 8) & AGP_AMD64_ATTBASE_MASK, 241 4); 242 pci_cfgregwrite(0, sc->mctrl[i], 3, AGP_AMD64_APCTRL, 243 (pci_cfgregread(0, sc->mctrl[i], 3, AGP_AMD64_APCTRL, 4) | 244 AGP_AMD64_APCTRL_GARTEN) & 245 ~(AGP_AMD64_APCTRL_DISGARTCPU | AGP_AMD64_APCTRL_DISGARTIO), 246 4); 247 } 248 249 agp_flush_cache(); 250 251 return 0; 252} 253 254static int 255agp_amd64_detach(device_t dev) 256{ 257 struct agp_amd64_softc *sc = device_get_softc(dev); 258 int i, error; 259 260 if ((error = agp_generic_detach(dev))) 261 return error; 262 263 for (i = 0; i < sc->n_mctrl; i++) 264 pci_cfgregwrite(0, sc->mctrl[i], 3, AGP_AMD64_APCTRL, 265 pci_cfgregread(0, sc->mctrl[i], 3, AGP_AMD64_APCTRL, 4) & 266 ~AGP_AMD64_APCTRL_GARTEN, 4); 267 268 AGP_SET_APERTURE(dev, sc->initial_aperture); 269 agp_free_gatt(sc->gatt); 270 271 return 0; 272} 273 274static uint32_t agp_amd64_table[] = { 275 0x02000000, /* 32 MB */ 276 0x04000000, /* 64 MB */ 277 0x08000000, /* 128 MB */ 278 0x10000000, /* 256 MB */ 279 0x20000000, /* 512 MB */ 280 0x40000000, /* 1024 MB */ 281 0x80000000, /* 2048 MB */ 282}; 283 284#define AGP_AMD64_TABLE_SIZE \ 285 (sizeof(agp_amd64_table) / sizeof(agp_amd64_table[0])) 286 287static uint32_t 288agp_amd64_get_aperture(device_t dev) 289{ 290 struct agp_amd64_softc *sc = device_get_softc(dev); 291 uint32_t i; 292 293 i = (pci_cfgregread(0, sc->mctrl[0], 3, AGP_AMD64_APCTRL, 4) & 294 AGP_AMD64_APCTRL_SIZE_MASK) >> 1; 295 296 if (i >= AGP_AMD64_TABLE_SIZE) 297 return 0; 298 299 return (agp_amd64_table[i]); 300} 301 302static int 303agp_amd64_set_aperture(device_t dev, uint32_t aperture) 304{ 305 struct agp_amd64_softc *sc = device_get_softc(dev); 306 uint32_t i; 307 int j; 308 309 for (i = 0; i < AGP_AMD64_TABLE_SIZE; i++) 310 if (agp_amd64_table[i] == aperture) 311 break; 312 if (i >= AGP_AMD64_TABLE_SIZE) 313 return EINVAL; 314 315 for (j = 0; j < sc->n_mctrl; j++) 316 pci_cfgregwrite(0, sc->mctrl[j], 3, AGP_AMD64_APCTRL, 317 (pci_cfgregread(0, sc->mctrl[j], 3, AGP_AMD64_APCTRL, 4) & 318 ~(AGP_AMD64_APCTRL_SIZE_MASK)) | (i << 1), 4); 319 320 switch (pci_get_vendor(dev)) { 321 case 0x10b9: /* ULi */ 322 return (agp_amd64_uli_set_aperture(dev, aperture)); 323 break; 324 325 case 0x10de: /* nVidia */ 326 return (agp_amd64_nvidia_set_aperture(dev, aperture)); 327 break; 328 329 case 0x1106: /* VIA */ 330 if (sc->via_agp) 331 return (agp_amd64_via_set_aperture(dev, aperture)); 332 break; 333 } 334 335 return 0; 336} 337 338static int 339agp_amd64_bind_page(device_t dev, int offset, vm_offset_t physical) 340{ 341 struct agp_amd64_softc *sc = device_get_softc(dev); 342 343 if (offset < 0 || offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT)) 344 return EINVAL; 345 346 sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = physical; 347 return 0; 348} 349 350static int 351agp_amd64_unbind_page(device_t dev, int offset) 352{ 353 struct agp_amd64_softc *sc = device_get_softc(dev); 354 355 if (offset < 0 || offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT)) 356 return EINVAL; 357 358 sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = 0; 359 return 0; 360} 361 362static void 363agp_amd64_flush_tlb(device_t dev) 364{ 365 struct agp_amd64_softc *sc = device_get_softc(dev); 366 int i; 367 368 for (i = 0; i < sc->n_mctrl; i++) 369 pci_cfgregwrite(0, sc->mctrl[i], 3, AGP_AMD64_CACHECTRL, 370 pci_cfgregread(0, sc->mctrl[i], 3, AGP_AMD64_CACHECTRL, 4) | 371 AGP_AMD64_CACHECTRL_INVGART, 4); 372} 373 374static void 375agp_amd64_apbase_fixup(device_t dev) 376{ 377 struct agp_amd64_softc *sc = device_get_softc(dev); 378 uint32_t apbase; 379 int i; 380 381 apbase = pci_cfgregread(0, sc->mctrl[0], 3, AGP_AMD64_APBASE, 4); 382 for (i = 0; i < sc->n_mctrl; i++) 383 pci_cfgregwrite(0, sc->mctrl[i], 3, AGP_AMD64_APBASE, 384 apbase & ~(AGP_AMD64_APBASE_MASK & ~(uint32_t)0x7f), 4); 385 sc->apbase = apbase << 25; 386} 387 388static void 389agp_amd64_uli_init(device_t dev) 390{ 391 struct agp_amd64_softc *sc = device_get_softc(dev); 392 393 agp_amd64_apbase_fixup(dev); 394 pci_write_config(dev, AGP_AMD64_ULI_APBASE, 395 (pci_read_config(dev, AGP_AMD64_ULI_APBASE, 4) & 0x0000000f) | 396 sc->apbase, 4); 397 pci_write_config(dev, AGP_AMD64_ULI_HTT_FEATURE, sc->apbase, 4); 398} 399 400static int 401agp_amd64_uli_set_aperture(device_t dev, uint32_t aperture) 402{ 403 struct agp_amd64_softc *sc = device_get_softc(dev); 404 405 switch (aperture) { 406 case 0x02000000: /* 32 MB */ 407 case 0x04000000: /* 64 MB */ 408 case 0x08000000: /* 128 MB */ 409 case 0x10000000: /* 256 MB */ 410 break; 411 default: 412 return EINVAL; 413 } 414 415 pci_write_config(dev, AGP_AMD64_ULI_ENU_SCR, 416 sc->apbase + aperture - 1, 4); 417 418 return 0; 419} 420 421static void 422agp_amd64_nvidia_init(device_t dev) 423{ 424 struct agp_amd64_softc *sc = device_get_softc(dev); 425 426 agp_amd64_apbase_fixup(dev); 427 pci_write_config(dev, AGP_AMD64_NVIDIA_0_APBASE, 428 (pci_read_config(dev, AGP_AMD64_NVIDIA_0_APBASE, 4) & 0x0000000f) | 429 sc->apbase, 4); 430 pci_cfgregwrite(0, 11, 0, AGP_AMD64_NVIDIA_1_APBASE1, sc->apbase, 4); 431 pci_cfgregwrite(0, 11, 0, AGP_AMD64_NVIDIA_1_APBASE2, sc->apbase, 4); 432} 433 434static int 435agp_amd64_nvidia_set_aperture(device_t dev, uint32_t aperture) 436{ 437 struct agp_amd64_softc *sc = device_get_softc(dev); 438 uint32_t apsize; 439 440 switch (aperture) { 441 case 0x02000000: apsize = 0x0f; break; /* 32 MB */ 442 case 0x04000000: apsize = 0x0e; break; /* 64 MB */ 443 case 0x08000000: apsize = 0x0c; break; /* 128 MB */ 444 case 0x10000000: apsize = 0x08; break; /* 256 MB */ 445 case 0x20000000: apsize = 0x00; break; /* 512 MB */ 446 default: 447 return EINVAL; 448 } 449 450 pci_cfgregwrite(0, 11, 0, AGP_AMD64_NVIDIA_1_APSIZE, 451 (pci_cfgregread(0, 11, 0, AGP_AMD64_NVIDIA_1_APSIZE, 4) & 452 0xfffffff0) | apsize, 4); 453 pci_cfgregwrite(0, 11, 0, AGP_AMD64_NVIDIA_1_APLIMIT1, 454 sc->apbase + aperture - 1, 4); 455 pci_cfgregwrite(0, 11, 0, AGP_AMD64_NVIDIA_1_APLIMIT2, 456 sc->apbase + aperture - 1, 4); 457 458 return 0; 459} 460 461static void 462agp_amd64_via_init(device_t dev) 463{ 464 struct agp_amd64_softc *sc = device_get_softc(dev); 465 466 agp_amd64_apbase_fixup(dev); 467 pci_cfgregwrite(0, 1, 0, AGP3_VIA_ATTBASE, sc->gatt->ag_physical, 4); 468 pci_cfgregwrite(0, 1, 0, AGP3_VIA_GARTCTRL, 469 pci_cfgregread(0, 1, 0, AGP3_VIA_ATTBASE, 4) | 0x180, 4); 470} 471 472static int 473agp_amd64_via_set_aperture(device_t dev, uint32_t aperture) 474{ 475 uint32_t apsize; 476 477 apsize = ((aperture - 1) >> 20) ^ 0xff; 478 if ((((apsize ^ 0xff) << 20) | ((1 << 20) - 1)) + 1 != aperture) 479 return EINVAL; 480 pci_cfgregwrite(0, 1, 0, AGP3_VIA_APSIZE, apsize, 1); 481 482 return 0; 483} 484 485static device_method_t agp_amd64_methods[] = { 486 /* Device interface */ 487 DEVMETHOD(device_probe, agp_amd64_probe), 488 DEVMETHOD(device_attach, agp_amd64_attach), 489 DEVMETHOD(device_detach, agp_amd64_detach), 490 DEVMETHOD(device_shutdown, bus_generic_shutdown), 491 DEVMETHOD(device_suspend, bus_generic_suspend), 492 DEVMETHOD(device_resume, bus_generic_resume), 493 494 /* AGP interface */ 495 DEVMETHOD(agp_get_aperture, agp_amd64_get_aperture), 496 DEVMETHOD(agp_set_aperture, agp_amd64_set_aperture), 497 DEVMETHOD(agp_bind_page, agp_amd64_bind_page), 498 DEVMETHOD(agp_unbind_page, agp_amd64_unbind_page), 499 DEVMETHOD(agp_flush_tlb, agp_amd64_flush_tlb), 500 DEVMETHOD(agp_enable, agp_generic_enable), 501 DEVMETHOD(agp_alloc_memory, agp_generic_alloc_memory), 502 DEVMETHOD(agp_free_memory, agp_generic_free_memory), 503 DEVMETHOD(agp_bind_memory, agp_generic_bind_memory), 504 DEVMETHOD(agp_unbind_memory, agp_generic_unbind_memory), 505 506 { 0, 0 } 507}; 508 509static driver_t agp_amd64_driver = { 510 "agp", 511 agp_amd64_methods, 512 sizeof(struct agp_amd64_softc), 513}; 514 515static devclass_t agp_devclass; 516 517DRIVER_MODULE(agp_amd64, hostb, agp_amd64_driver, agp_devclass, 0, 0); 518MODULE_DEPEND(agp_amd64, agp, 1, 1, 1); 519MODULE_DEPEND(agp_amd64, pci, 1, 1, 1); 520