drivers/gpu/drm/radeon/radeon_device.c

   1 /*
   2  * Copyright 2008 Advanced Micro Devices, Inc.
   3  * Copyright 2008 Red Hat Inc.
   4  * Copyright 2009 Jerome Glisse.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors: Dave Airlie
  25  *          Alex Deucher
  26  *          Jerome Glisse
  27  */
  28 #include <linux/console.h>
  29 #include <drm/drmP.h>
  30 #include <drm/drm_crtc_helper.h>
  31 #include <drm/radeon_drm.h>
  32 #include "radeon_reg.h"
  33 #include "radeon.h"
  34 #include "radeon_asic.h"
  35 #include "atom.h"
  36
  37 /*
  38  * Clear GPU surface registers.
  39  */
  40 static void radeon_surface_init(struct radeon_device *rdev)
  41 {
  42         /* FIXME: check this out */
  43         if (rdev->family < CHIP_R600) {
  44                 int i;
  45
  46                 for (i = 0; i < 8; i++) {
  47                         WREG32(RADEON_SURFACE0_INFO +
  48                                i * (RADEON_SURFACE1_INFO - RADEON_SURFACE0_INFO),
  49                                0);
  50                 }
  51                 /* enable surfaces */
  52                 WREG32(RADEON_SURFACE_CNTL, 0);
  53         }
  54 }
  55
  56 /*
  57  * GPU scratch registers helpers function.
  58  */
  59 static void radeon_scratch_init(struct radeon_device *rdev)
  60 {
  61         int i;
  62
  63         /* FIXME: check this out */
  64         if (rdev->family < CHIP_R300) {
  65                 rdev->scratch.num_reg = 5;
  66         } else {
  67                 rdev->scratch.num_reg = 7;
  68         }
  69         for (i = 0; i < rdev->scratch.num_reg; i++) {
  70                 rdev->scratch.free[i] = true;
  71                 rdev->scratch.reg[i] = RADEON_SCRATCH_REG0 + (i * 4);
  72         }
  73 }
  74
  75 int radeon_scratch_get(struct radeon_device *rdev, uint32_t *reg)
  76 {
  77         int i;
  78
  79         for (i = 0; i < rdev->scratch.num_reg; i++) {
  80                 if (rdev->scratch.free[i]) {
  81                         rdev->scratch.free[i] = false;
  82                         *reg = rdev->scratch.reg[i];
  83                         return 0;
  84                 }
  85         }
  86         return -EINVAL;
  87 }
  88
  89 void radeon_scratch_free(struct radeon_device *rdev, uint32_t reg)
  90 {
  91         int i;
  92
  93         for (i = 0; i < rdev->scratch.num_reg; i++) {
  94                 if (rdev->scratch.reg[i] == reg) {
  95                         rdev->scratch.free[i] = true;
  96                         return;
  97                 }
  98         }
  99 }
 100
 101 /*
 102  * MC common functions
 103  */
 104 int radeon_mc_setup(struct radeon_device *rdev)
 105 {
 106         uint32_t tmp;
 107
 108         /* Some chips have an "issue" with the memory controller, the
 109          * location must be aligned to the size. We just align it down,
 110          * too bad if we walk over the top of system memory, we don't
 111          * use DMA without a remapped anyway.
 112          * Affected chips are rv280, all r3xx, and all r4xx, but not IGP
 113          */
 114         /* FGLRX seems to setup like this, VRAM a 0, then GART.
 115          */
 116         /*
 117          * Note: from R6xx the address space is 40bits but here we only
 118          * use 32bits (still have to see a card which would exhaust 4G
 119          * address space).
 120          */
 121         if (rdev->mc.vram_location != 0xFFFFFFFFUL) {
 122                 /* vram location was already setup try to put gtt after
 123                  * if it fits */
 124                 tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size;
 125                 tmp = (tmp + rdev->mc.gtt_size - 1) & ~(rdev->mc.gtt_size - 1);
 126                 if ((0xFFFFFFFFUL - tmp) >= rdev->mc.gtt_size) {
 127                         rdev->mc.gtt_location = tmp;
 128                 } else {
 129                         if (rdev->mc.gtt_size >= rdev->mc.vram_location) {
 130                                 printk(KERN_ERR "[drm] GTT too big to fit "
 131                                        "before or after vram location.\n");
 132                                 return -EINVAL;
 133                         }
 134                         rdev->mc.gtt_location = 0;
 135                 }
 136         } else if (rdev->mc.gtt_location != 0xFFFFFFFFUL) {
 137                 /* gtt location was already setup try to put vram before
 138                  * if it fits */
 139                 if (rdev->mc.mc_vram_size < rdev->mc.gtt_location) {
 140                         rdev->mc.vram_location = 0;
 141                 } else {
 142                         tmp = rdev->mc.gtt_location + rdev->mc.gtt_size;
 143                         tmp += (rdev->mc.mc_vram_size - 1);
 144                         tmp &= ~(rdev->mc.mc_vram_size - 1);
 145                         if ((0xFFFFFFFFUL - tmp) >= rdev->mc.mc_vram_size) {
 146                                 rdev->mc.vram_location = tmp;
 147                         } else {
 148                                 printk(KERN_ERR "[drm] vram too big to fit "
 149                                        "before or after GTT location.\n");
 150                                 return -EINVAL;
 151                         }
 152                 }
 153         } else {
 154                 rdev->mc.vram_location = 0;
 155                 tmp = rdev->mc.mc_vram_size;
 156                 tmp = (tmp + rdev->mc.gtt_size - 1) & ~(rdev->mc.gtt_size - 1);
 157                 rdev->mc.gtt_location = tmp;
 158         }
 159         DRM_INFO("radeon: VRAM %uM\n", rdev->mc.real_vram_size >> 20);
 160         DRM_INFO("radeon: VRAM from 0x%08X to 0x%08X\n",
 161                  rdev->mc.vram_location,
 162                  rdev->mc.vram_location + rdev->mc.mc_vram_size - 1);
 163         if (rdev->mc.real_vram_size != rdev->mc.mc_vram_size)
 164                 DRM_INFO("radeon: VRAM less than aperture workaround enabled\n");
 165         DRM_INFO("radeon: GTT %uM\n", rdev->mc.gtt_size >> 20);
 166         DRM_INFO("radeon: GTT from 0x%08X to 0x%08X\n",
 167                  rdev->mc.gtt_location,
 168                  rdev->mc.gtt_location + rdev->mc.gtt_size - 1);
 169         return 0;
 170 }
 171
 172
 173 /*
 174  * GPU helpers function.
 175  */
 176 static bool radeon_card_posted(struct radeon_device *rdev)
 177 {
 178         uint32_t reg;
 179
 180         /* first check CRTCs */
 181         if (ASIC_IS_AVIVO(rdev)) {
 182                 reg = RREG32(AVIVO_D1CRTC_CONTROL) |
 183                       RREG32(AVIVO_D2CRTC_CONTROL);
 184                 if (reg & AVIVO_CRTC_EN) {
 185                         return true;
 186                 }
 187         } else {
 188                 reg = RREG32(RADEON_CRTC_GEN_CNTL) |
 189                       RREG32(RADEON_CRTC2_GEN_CNTL);
 190                 if (reg & RADEON_CRTC_EN) {
 191                         return true;
 192                 }
 193         }
 194
 195         /* then check MEM_SIZE, in case the crtcs are off */
 196         if (rdev->family >= CHIP_R600)
 197                 reg = RREG32(R600_CONFIG_MEMSIZE);
 198         else
 199                 reg = RREG32(RADEON_CONFIG_MEMSIZE);
 200
 201         if (reg)
 202                 return true;
 203
 204         return false;
 205
 206 }
 207
 208
 209 /*
 210  * Registers accessors functions.
 211  */
 212 uint32_t radeon_invalid_rreg(struct radeon_device *rdev, uint32_t reg)
 213 {
 214         DRM_ERROR("Invalid callback to read register 0x%04X\n", reg);
 215         BUG_ON(1);
 216         return 0;
 217 }
 218
 219 void radeon_invalid_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
 220 {
 221         DRM_ERROR("Invalid callback to write register 0x%04X with 0x%08X\n",
 222                   reg, v);
 223         BUG_ON(1);
 224 }
 225
 226 void radeon_register_accessor_init(struct radeon_device *rdev)
 227 {
 228         rdev->mm_rreg = &r100_mm_rreg;
 229         rdev->mm_wreg = &r100_mm_wreg;
 230         rdev->mc_rreg = &radeon_invalid_rreg;
 231         rdev->mc_wreg = &radeon_invalid_wreg;
 232         rdev->pll_rreg = &radeon_invalid_rreg;
 233         rdev->pll_wreg = &radeon_invalid_wreg;
 234         rdev->pcie_rreg = &radeon_invalid_rreg;
 235         rdev->pcie_wreg = &radeon_invalid_wreg;
 236         rdev->pciep_rreg = &radeon_invalid_rreg;
 237         rdev->pciep_wreg = &radeon_invalid_wreg;
 238
 239         /* Don't change order as we are overridding accessor. */
 240         if (rdev->family < CHIP_RV515) {
 241                 rdev->pcie_rreg = &rv370_pcie_rreg;
 242                 rdev->pcie_wreg = &rv370_pcie_wreg;
 243         }
 244         if (rdev->family >= CHIP_RV515) {
 245                 rdev->pcie_rreg = &rv515_pcie_rreg;
 246                 rdev->pcie_wreg = &rv515_pcie_wreg;
 247         }
 248         /* FIXME: not sure here */
 249         if (rdev->family <= CHIP_R580) {
 250                 rdev->pll_rreg = &r100_pll_rreg;
 251                 rdev->pll_wreg = &r100_pll_wreg;
 252         }
 253         if (rdev->family >= CHIP_RV515) {
 254                 rdev->mc_rreg = &rv515_mc_rreg;
 255                 rdev->mc_wreg = &rv515_mc_wreg;
 256         }
 257         if (rdev->family == CHIP_RS400 || rdev->family == CHIP_RS480) {
 258                 rdev->mc_rreg = &rs400_mc_rreg;
 259                 rdev->mc_wreg = &rs400_mc_wreg;
 260         }
 261         if (rdev->family == CHIP_RS690 || rdev->family == CHIP_RS740) {
 262                 rdev->mc_rreg = &rs690_mc_rreg;
 263                 rdev->mc_wreg = &rs690_mc_wreg;
 264         }
 265         if (rdev->family == CHIP_RS600) {
 266                 rdev->mc_rreg = &rs600_mc_rreg;
 267                 rdev->mc_wreg = &rs600_mc_wreg;
 268         }
 269         if (rdev->family >= CHIP_R600) {
 270                 rdev->pciep_rreg = &r600_pciep_rreg;
 271                 rdev->pciep_wreg = &r600_pciep_wreg;
 272         }
 273 }
 274
 275
 276 /*
 277  * ASIC
 278  */
 279 int radeon_asic_init(struct radeon_device *rdev)
 280 {
 281         radeon_register_accessor_init(rdev);
 282         switch (rdev->family) {
 283         case CHIP_R100:
 284         case CHIP_RV100:
 285         case CHIP_RS100:
 286         case CHIP_RV200:
 287         case CHIP_RS200:
 288         case CHIP_R200:
 289         case CHIP_RV250:
 290         case CHIP_RS300:
 291         case CHIP_RV280:
 292                 rdev->asic = &r100_asic;
 293                 break;
 294         case CHIP_R300:
 295         case CHIP_R350:
 296         case CHIP_RV350:
 297         case CHIP_RV380:
 298                 rdev->asic = &r300_asic;
 299                 break;
 300         case CHIP_R420:
 301         case CHIP_R423:
 302         case CHIP_RV410:
 303                 rdev->asic = &r420_asic;
 304                 break;
 305         case CHIP_RS400:
 306         case CHIP_RS480:
 307                 rdev->asic = &rs400_asic;
 308                 break;
 309         case CHIP_RS600:
 310                 rdev->asic = &rs600_asic;
 311                 break;
 312         case CHIP_RS690:
 313         case CHIP_RS740:
 314                 rdev->asic = &rs690_asic;
 315                 break;
 316         case CHIP_RV515:
 317                 rdev->asic = &rv515_asic;
 318                 break;
 319         case CHIP_R520:
 320         case CHIP_RV530:
 321         case CHIP_RV560:
 322         case CHIP_RV570:
 323         case CHIP_R580:
 324                 rdev->asic = &r520_asic;
 325                 break;
 326         case CHIP_R600:
 327         case CHIP_RV610:
 328         case CHIP_RV630:
 329         case CHIP_RV620:
 330         case CHIP_RV635:
 331         case CHIP_RV670:
 332         case CHIP_RS780:
 333         case CHIP_RV770:
 334         case CHIP_RV730:
 335         case CHIP_RV710:
 336         default:
 337                 /* FIXME: not supported yet */
 338                 return -EINVAL;
 339         }
 340         return 0;
 341 }
 342
 343
 344 /*
 345  * Wrapper around modesetting bits.
 346  */
 347 int radeon_clocks_init(struct radeon_device *rdev)
 348 {
 349         int r;
 350
 351         radeon_get_clock_info(rdev->ddev);
 352         r = radeon_static_clocks_init(rdev->ddev);
 353         if (r) {
 354                 return r;
 355         }
 356         DRM_INFO("Clocks initialized !\n");
 357         return 0;
 358 }
 359
 360 void radeon_clocks_fini(struct radeon_device *rdev)
 361 {
 362 }
 363
 364 /* ATOM accessor methods */
 365 static uint32_t cail_pll_read(struct card_info *info, uint32_t reg)
 366 {
 367         struct radeon_device *rdev = info->dev->dev_private;
 368         uint32_t r;
 369
 370         r = rdev->pll_rreg(rdev, reg);
 371         return r;
 372 }
 373
 374 static void cail_pll_write(struct card_info *info, uint32_t reg, uint32_t val)
 375 {
 376         struct radeon_device *rdev = info->dev->dev_private;
 377
 378         rdev->pll_wreg(rdev, reg, val);
 379 }
 380
 381 static uint32_t cail_mc_read(struct card_info *info, uint32_t reg)
 382 {
 383         struct radeon_device *rdev = info->dev->dev_private;
 384         uint32_t r;
 385
 386         r = rdev->mc_rreg(rdev, reg);
 387         return r;
 388 }
 389
 390 static void cail_mc_write(struct card_info *info, uint32_t reg, uint32_t val)
 391 {
 392         struct radeon_device *rdev = info->dev->dev_private;
 393
 394         rdev->mc_wreg(rdev, reg, val);
 395 }
 396
 397 static void cail_reg_write(struct card_info *info, uint32_t reg, uint32_t val)
 398 {
 399         struct radeon_device *rdev = info->dev->dev_private;
 400
 401         WREG32(reg*4, val);
 402 }
 403
 404 static uint32_t cail_reg_read(struct card_info *info, uint32_t reg)
 405 {
 406         struct radeon_device *rdev = info->dev->dev_private;
 407         uint32_t r;
 408
 409         r = RREG32(reg*4);
 410         return r;
 411 }
 412
 413 static struct card_info atom_card_info = {
 414         .dev = NULL,
 415         .reg_read = cail_reg_read,
 416         .reg_write = cail_reg_write,
 417         .mc_read = cail_mc_read,
 418         .mc_write = cail_mc_write,
 419         .pll_read = cail_pll_read,
 420         .pll_write = cail_pll_write,
 421 };
 422
 423 int radeon_atombios_init(struct radeon_device *rdev)
 424 {
 425         atom_card_info.dev = rdev->ddev;
 426         rdev->mode_info.atom_context = atom_parse(&atom_card_info, rdev->bios);
 427         radeon_atom_initialize_bios_scratch_regs(rdev->ddev);
 428         return 0;
 429 }
 430
 431 void radeon_atombios_fini(struct radeon_device *rdev)
 432 {
 433         kfree(rdev->mode_info.atom_context);
 434 }
 435
 436 int radeon_combios_init(struct radeon_device *rdev)
 437 {
 438         radeon_combios_initialize_bios_scratch_regs(rdev->ddev);
 439         return 0;
 440 }
 441
 442 void radeon_combios_fini(struct radeon_device *rdev)
 443 {
 444 }
 445
 446 int radeon_modeset_init(struct radeon_device *rdev);
 447 void radeon_modeset_fini(struct radeon_device *rdev);
 448
 449
 450 /*
 451  * Radeon device.
 452  */
 453 int radeon_device_init(struct radeon_device *rdev,
 454                        struct drm_device *ddev,
 455                        struct pci_dev *pdev,
 456                        uint32_t flags)
 457 {
 458         int r, ret;
 459         int dma_bits;
 460
 461         DRM_INFO("radeon: Initializing kernel modesetting.\n");
 462         rdev->shutdown = false;
 463         rdev->ddev = ddev;
 464         rdev->pdev = pdev;
 465         rdev->flags = flags;
 466         rdev->family = flags & RADEON_FAMILY_MASK;
 467         rdev->is_atom_bios = false;
 468         rdev->usec_timeout = RADEON_MAX_USEC_TIMEOUT;
 469         rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
 470         rdev->gpu_lockup = false;
 471         /* mutex initialization are all done here so we
 472          * can recall function without having locking issues */
 473         mutex_init(&rdev->cs_mutex);
 474         mutex_init(&rdev->ib_pool.mutex);
 475         mutex_init(&rdev->cp.mutex);
 476         rwlock_init(&rdev->fence_drv.lock);
 477
 478         if (radeon_agpmode == -1) {
 479                 rdev->flags &= ~RADEON_IS_AGP;
 480                 if (rdev->family > CHIP_RV515 ||
 481                     rdev->family == CHIP_RV380 ||
 482                     rdev->family == CHIP_RV410 ||
 483                     rdev->family == CHIP_R423) {
 484                         DRM_INFO("Forcing AGP to PCIE mode\n");
 485                         rdev->flags |= RADEON_IS_PCIE;
 486                 } else {
 487                         DRM_INFO("Forcing AGP to PCI mode\n");
 488                         rdev->flags |= RADEON_IS_PCI;
 489                 }
 490         }
 491
 492         /* Set asic functions */
 493         r = radeon_asic_init(rdev);
 494         if (r) {
 495                 return r;
 496         }
 497         r = radeon_init(rdev);
 498         if (r) {
 499                 return r;
 500         }
 501
 502         /* set DMA mask + need_dma32 flags.
 503          * PCIE - can handle 40-bits.
 504          * IGP - can handle 40-bits (in theory)
 505          * AGP - generally dma32 is safest
 506          * PCI - only dma32
 507          */
 508         rdev->need_dma32 = false;
 509         if (rdev->flags & RADEON_IS_AGP)
 510                 rdev->need_dma32 = true;
 511         if (rdev->flags & RADEON_IS_PCI)
 512                 rdev->need_dma32 = true;
 513
 514         dma_bits = rdev->need_dma32 ? 32 : 40;
 515         r = pci_set_dma_mask(rdev->pdev, DMA_BIT_MASK(dma_bits));
 516         if (r) {
 517                 printk(KERN_WARNING "radeon: No suitable DMA available.\n");
 518         }
 519
 520         /* Registers mapping */
 521         /* TODO: block userspace mapping of io register */
 522         rdev->rmmio_base = drm_get_resource_start(rdev->ddev, 2);
 523         rdev->rmmio_size = drm_get_resource_len(rdev->ddev, 2);
 524         rdev->rmmio = ioremap(rdev->rmmio_base, rdev->rmmio_size);
 525         if (rdev->rmmio == NULL) {
 526                 return -ENOMEM;
 527         }
 528         DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)rdev->rmmio_base);
 529         DRM_INFO("register mmio size: %u\n", (unsigned)rdev->rmmio_size);
 530
 531         /* Setup errata flags */
 532         radeon_errata(rdev);
 533         /* Initialize scratch registers */
 534         radeon_scratch_init(rdev);
 535         /* Initialize surface registers */
 536         radeon_surface_init(rdev);
 537
 538         /* TODO: disable VGA need to use VGA request */
 539         /* BIOS*/
 540         if (!radeon_get_bios(rdev)) {
 541                 if (ASIC_IS_AVIVO(rdev))
 542                         return -EINVAL;
 543         }
 544         if (rdev->is_atom_bios) {
 545                 r = radeon_atombios_init(rdev);
 546                 if (r) {
 547                         return r;
 548                 }
 549         } else {
 550                 r = radeon_combios_init(rdev);
 551                 if (r) {
 552                         return r;
 553                 }
 554         }
 555         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 556         if (radeon_gpu_reset(rdev)) {
 557                 /* FIXME: what do we want to do here ? */
 558         }
 559         /* check if cards are posted or not */
 560         if (!radeon_card_posted(rdev) && rdev->bios) {
 561                 DRM_INFO("GPU not posted. posting now...\n");
 562                 if (rdev->is_atom_bios) {
 563                         atom_asic_init(rdev->mode_info.atom_context);
 564                 } else {
 565                         radeon_combios_asic_init(rdev->ddev);
 566                 }
 567         }
 568         /* Initialize clocks */
 569         r = radeon_clocks_init(rdev);
 570         if (r) {
 571                 return r;
 572         }
 573         /* Get vram informations */
 574         radeon_vram_info(rdev);
 575
 576         /* Add an MTRR for the VRAM */
 577         rdev->mc.vram_mtrr = mtrr_add(rdev->mc.aper_base, rdev->mc.aper_size,
 578                                       MTRR_TYPE_WRCOMB, 1);
 579         DRM_INFO("Detected VRAM RAM=%uM, BAR=%uM\n",
 580                  rdev->mc.real_vram_size >> 20,
 581                  (unsigned)rdev->mc.aper_size >> 20);
 582         DRM_INFO("RAM width %dbits %cDR\n",
 583                  rdev->mc.vram_width, rdev->mc.vram_is_ddr ? 'D' : 'S');
 584         /* Initialize memory controller (also test AGP) */
 585         r = radeon_mc_init(rdev);
 586         if (r) {
 587                 return r;
 588         }
 589         /* Fence driver */
 590         r = radeon_fence_driver_init(rdev);
 591         if (r) {
 592                 return r;
 593         }
 594         r = radeon_irq_kms_init(rdev);
 595         if (r) {
 596                 return r;
 597         }
 598         /* Memory manager */
 599         r = radeon_object_init(rdev);
 600         if (r) {
 601                 return r;
 602         }
 603         /* Initialize GART (initialize after TTM so we can allocate
 604          * memory through TTM but finalize after TTM) */
 605         r = radeon_gart_enable(rdev);
 606         if (!r) {
 607                 r = radeon_gem_init(rdev);
 608         }
 609
 610         /* 1M ring buffer */
 611         if (!r) {
 612                 r = radeon_cp_init(rdev, 1024 * 1024);
 613         }
 614         if (!r) {
 615                 r = radeon_wb_init(rdev);
 616                 if (r) {
 617                         DRM_ERROR("radeon: failled initializing WB (%d).\n", r);
 618                         return r;
 619                 }
 620         }
 621         if (!r) {
 622                 r = radeon_ib_pool_init(rdev);
 623                 if (r) {
 624                         DRM_ERROR("radeon: failled initializing IB pool (%d).\n", r);
 625                         return r;
 626                 }
 627         }
 628         if (!r) {
 629                 r = radeon_ib_test(rdev);
 630                 if (r) {
 631                         DRM_ERROR("radeon: failled testing IB (%d).\n", r);
 632                         return r;
 633                 }
 634         }
 635         ret = r;
 636         r = radeon_modeset_init(rdev);
 637         if (r) {
 638                 return r;
 639         }
 640         if (!ret) {
 641                 DRM_INFO("radeon: kernel modesetting successfully initialized.\n");
 642         }
 643         if (radeon_testing) {
 644                 radeon_test_moves(rdev);
 645         }
 646         if (radeon_benchmarking) {
 647                 radeon_benchmark(rdev);
 648         }
 649         return ret;
 650 }
 651
 652 void radeon_device_fini(struct radeon_device *rdev)
 653 {
 654         if (rdev == NULL || rdev->rmmio == NULL) {
 655                 return;
 656         }
 657         DRM_INFO("radeon: finishing device.\n");
 658         rdev->shutdown = true;
 659         /* Order matter so becarefull if you rearrange anythings */
 660         radeon_modeset_fini(rdev);
 661         radeon_ib_pool_fini(rdev);
 662         radeon_cp_fini(rdev);
 663         radeon_wb_fini(rdev);
 664         radeon_gem_fini(rdev);
 665         radeon_object_fini(rdev);
 666         /* mc_fini must be after object_fini */
 667         radeon_mc_fini(rdev);
 668 #if __OS_HAS_AGP
 669         radeon_agp_fini(rdev);
 670 #endif
 671         radeon_irq_kms_fini(rdev);
 672         radeon_fence_driver_fini(rdev);
 673         radeon_clocks_fini(rdev);
 674         if (rdev->is_atom_bios) {
 675                 radeon_atombios_fini(rdev);
 676         } else {
 677                 radeon_combios_fini(rdev);
 678         }
 679         kfree(rdev->bios);
 680         rdev->bios = NULL;
 681         iounmap(rdev->rmmio);
 682         rdev->rmmio = NULL;
 683 }
 684
 685
 686 /*
 687  * Suspend & resume.
 688  */
 689 int radeon_suspend_kms(struct drm_device *dev, pm_message_t state)
 690 {
 691         struct radeon_device *rdev = dev->dev_private;
 692         struct drm_crtc *crtc;
 693
 694         if (dev == NULL || rdev == NULL) {
 695                 return -ENODEV;
 696         }
 697         if (state.event == PM_EVENT_PRETHAW) {
 698                 return 0;
 699         }
 700         /* unpin the front buffers */
 701         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 702                 struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->fb);
 703                 struct radeon_object *robj;
 704
 705                 if (rfb == NULL || rfb->obj == NULL) {
 706                         continue;
 707                 }
 708                 robj = rfb->obj->driver_private;
 709                 if (robj != rdev->fbdev_robj) {
 710                         radeon_object_unpin(robj);
 711                 }
 712         }
 713         /* evict vram memory */
 714         radeon_object_evict_vram(rdev);
 715         /* wait for gpu to finish processing current batch */
 716         radeon_fence_wait_last(rdev);
 717
 718         radeon_cp_disable(rdev);
 719         radeon_gart_disable(rdev);
 720
 721         /* evict remaining vram memory */
 722         radeon_object_evict_vram(rdev);
 723
 724         rdev->irq.sw_int = false;
 725         radeon_irq_set(rdev);
 726
 727         pci_save_state(dev->pdev);
 728         if (state.event == PM_EVENT_SUSPEND) {
 729                 /* Shut down the device */
 730                 pci_disable_device(dev->pdev);
 731                 pci_set_power_state(dev->pdev, PCI_D3hot);
 732         }
 733         acquire_console_sem();
 734         fb_set_suspend(rdev->fbdev_info, 1);
 735         release_console_sem();
 736         return 0;
 737 }
 738
 739 int radeon_resume_kms(struct drm_device *dev)
 740 {
 741         struct radeon_device *rdev = dev->dev_private;
 742         int r;
 743
 744         acquire_console_sem();
 745         pci_set_power_state(dev->pdev, PCI_D0);
 746         pci_restore_state(dev->pdev);
 747         if (pci_enable_device(dev->pdev)) {
 748                 release_console_sem();
 749                 return -1;
 750         }
 751         pci_set_master(dev->pdev);
 752         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 753         if (radeon_gpu_reset(rdev)) {
 754                 /* FIXME: what do we want to do here ? */
 755         }
 756         /* post card */
 757         if (rdev->is_atom_bios) {
 758                 atom_asic_init(rdev->mode_info.atom_context);
 759         } else {
 760                 radeon_combios_asic_init(rdev->ddev);
 761         }
 762         /* Initialize clocks */
 763         r = radeon_clocks_init(rdev);
 764         if (r) {
 765                 release_console_sem();
 766                 return r;
 767         }
 768         /* Enable IRQ */
 769         rdev->irq.sw_int = true;
 770         radeon_irq_set(rdev);
 771         /* Initialize GPU Memory Controller */
 772         r = radeon_mc_init(rdev);
 773         if (r) {
 774                 goto out;
 775         }
 776         r = radeon_gart_enable(rdev);
 777         if (r) {
 778                 goto out;
 779         }
 780         r = radeon_cp_init(rdev, rdev->cp.ring_size);
 781         if (r) {
 782                 goto out;
 783         }
 784 out:
 785         fb_set_suspend(rdev->fbdev_info, 0);
 786         release_console_sem();
 787
 788         /* blat the mode back in */
 789         drm_helper_resume_force_mode(dev);
 790         return 0;
 791 }
 792
 793
 794 /*
 795  * Debugfs
 796  */
 797 struct radeon_debugfs {
 798         struct drm_info_list    *files;
 799         unsigned                num_files;
 800 };
 801 static struct radeon_debugfs _radeon_debugfs[RADEON_DEBUGFS_MAX_NUM_FILES];
 802 static unsigned _radeon_debugfs_count = 0;
 803
 804 int radeon_debugfs_add_files(struct radeon_device *rdev,
 805                              struct drm_info_list *files,
 806                              unsigned nfiles)
 807 {
 808         unsigned i;
 809
 810         for (i = 0; i < _radeon_debugfs_count; i++) {
 811                 if (_radeon_debugfs[i].files == files) {
 812                         /* Already registered */
 813                         return 0;
 814                 }
 815         }
 816         if ((_radeon_debugfs_count + nfiles) > RADEON_DEBUGFS_MAX_NUM_FILES) {
 817                 DRM_ERROR("Reached maximum number of debugfs files.\n");
 818                 DRM_ERROR("Report so we increase RADEON_DEBUGFS_MAX_NUM_FILES.\n");
 819                 return -EINVAL;
 820         }
 821         _radeon_debugfs[_radeon_debugfs_count].files = files;
 822         _radeon_debugfs[_radeon_debugfs_count].num_files = nfiles;
 823         _radeon_debugfs_count++;
 824 #if defined(CONFIG_DEBUG_FS)
 825         drm_debugfs_create_files(files, nfiles,
 826                                  rdev->ddev->control->debugfs_root,
 827                                  rdev->ddev->control);
 828         drm_debugfs_create_files(files, nfiles,
 829                                  rdev->ddev->primary->debugfs_root,
 830                                  rdev->ddev->primary);
 831 #endif
 832         return 0;
 833 }
 834
 835 #if defined(CONFIG_DEBUG_FS)
 836 int radeon_debugfs_init(struct drm_minor *minor)
 837 {
 838         return 0;
 839 }
 840
 841 void radeon_debugfs_cleanup(struct drm_minor *minor)
 842 {
 843         unsigned i;
 844
 845         for (i = 0; i < _radeon_debugfs_count; i++) {
 846                 drm_debugfs_remove_files(_radeon_debugfs[i].files,
 847                                          _radeon_debugfs[i].num_files, minor);
 848         }
 849 }
 850 #endif