1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2004, 2005 Jung-uk Kim <jkim@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29#include <sys/cdefs.h> 30__FBSDID("$FreeBSD$"); 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/agp/agppriv.h> 43#include <dev/agp/agpreg.h> 44#include <dev/pci/pcivar.h> 45#include <dev/pci/pcireg.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 agp_find_caps(dev) == 0) 91 return (NULL); 92 93 switch (pci_get_devid(dev)) { 94 case 0x74541022: 95 return ("AMD 8151 AGP graphics tunnel"); 96 case 0x07551039: 97 return ("SiS 755 host to AGP bridge"); 98 case 0x07601039: 99 return ("SiS 760 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 uint32_t devid; 171 int i, n, error; 172 173 for (i = 0, n = 0; i < PCI_SLOTMAX && n < AMD64_MAX_MCTRL; i++) { 174 devid = pci_cfgregread(0, i, 3, 0, 4); 175 if (devid == 0x11031022 || devid == 0x12031022) { 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 return (0); 247} 248 249static int 250agp_amd64_detach(device_t dev) 251{ 252 struct agp_amd64_softc *sc = device_get_softc(dev); 253 int i; 254 255 agp_free_cdev(dev); 256 257 for (i = 0; i < sc->n_mctrl; i++) 258 pci_cfgregwrite(0, sc->mctrl[i], 3, AGP_AMD64_APCTRL, 259 pci_cfgregread(0, sc->mctrl[i], 3, AGP_AMD64_APCTRL, 4) & 260 ~AGP_AMD64_APCTRL_GARTEN, 4); 261 262 AGP_SET_APERTURE(dev, sc->initial_aperture); 263 agp_free_gatt(sc->gatt); 264 agp_free_res(dev); 265 266 return (0); 267} 268 269static uint32_t agp_amd64_table[] = { 270 0x02000000, /* 32 MB */ 271 0x04000000, /* 64 MB */ 272 0x08000000, /* 128 MB */ 273 0x10000000, /* 256 MB */ 274 0x20000000, /* 512 MB */ 275 0x40000000, /* 1024 MB */ 276 0x80000000, /* 2048 MB */ 277}; 278 279#define AGP_AMD64_TABLE_SIZE nitems(agp_amd64_table) 280 281static uint32_t 282agp_amd64_get_aperture(device_t dev) 283{ 284 struct agp_amd64_softc *sc = device_get_softc(dev); 285 uint32_t i; 286 287 i = (pci_cfgregread(0, sc->mctrl[0], 3, AGP_AMD64_APCTRL, 4) & 288 AGP_AMD64_APCTRL_SIZE_MASK) >> 1; 289 290 if (i >= AGP_AMD64_TABLE_SIZE) 291 return (0); 292 293 return (agp_amd64_table[i]); 294} 295 296static int 297agp_amd64_set_aperture(device_t dev, uint32_t aperture) 298{ 299 struct agp_amd64_softc *sc = device_get_softc(dev); 300 uint32_t i; 301 int j; 302 303 for (i = 0; i < AGP_AMD64_TABLE_SIZE; i++) 304 if (agp_amd64_table[i] == aperture) 305 break; 306 if (i >= AGP_AMD64_TABLE_SIZE) 307 return (EINVAL); 308 309 for (j = 0; j < sc->n_mctrl; j++) 310 pci_cfgregwrite(0, sc->mctrl[j], 3, AGP_AMD64_APCTRL, 311 (pci_cfgregread(0, sc->mctrl[j], 3, AGP_AMD64_APCTRL, 4) & 312 ~(AGP_AMD64_APCTRL_SIZE_MASK)) | (i << 1), 4); 313 314 switch (pci_get_vendor(dev)) { 315 case 0x10b9: /* ULi */ 316 return (agp_amd64_uli_set_aperture(dev, aperture)); 317 break; 318 319 case 0x10de: /* nVidia */ 320 return (agp_amd64_nvidia_set_aperture(dev, aperture)); 321 break; 322 323 case 0x1106: /* VIA */ 324 if (sc->via_agp) 325 return (agp_amd64_via_set_aperture(dev, aperture)); 326 break; 327 } 328 329 return (0); 330} 331 332static int 333agp_amd64_bind_page(device_t dev, vm_offset_t offset, vm_offset_t physical) 334{ 335 struct agp_amd64_softc *sc = device_get_softc(dev); 336 337 if (offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT)) 338 return (EINVAL); 339 340 sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = 341 (physical & 0xfffff000) | ((physical >> 28) & 0x00000ff0) | 3; 342 343 return (0); 344} 345 346static int 347agp_amd64_unbind_page(device_t dev, vm_offset_t offset) 348{ 349 struct agp_amd64_softc *sc = device_get_softc(dev); 350 351 if (offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT)) 352 return (EINVAL); 353 354 sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = 0; 355 356 return (0); 357} 358 359static void 360agp_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 371static void 372agp_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 385static void 386agp_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 397static int 398agp_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 418static void 419agp_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 431static int 432agp_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 458static void 459agp_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 469static int 470agp_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 482static 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 506static driver_t agp_amd64_driver = { 507 "agp", 508 agp_amd64_methods, 509 sizeof(struct agp_amd64_softc), 510}; 511 512static devclass_t agp_devclass; 513 514DRIVER_MODULE(agp_amd64, hostb, agp_amd64_driver, agp_devclass, 0, 0); 515MODULE_DEPEND(agp_amd64, agp, 1, 1, 1); 516MODULE_DEPEND(agp_amd64, pci, 1, 1, 1); 517