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 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 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         rdev->mc.vram_start = rdev->mc.vram_location;
 160         rdev->mc.vram_end = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
 161         rdev->mc.gtt_start = rdev->mc.gtt_location;
 162         rdev->mc.gtt_end = rdev->mc.gtt_location + rdev->mc.gtt_size - 1;
 163         DRM_INFO("radeon: VRAM %uM\n", (unsigned)(rdev->mc.mc_vram_size >> 20));
 164         DRM_INFO("radeon: VRAM from 0x%08X to 0x%08X\n",
 165                  (unsigned)rdev->mc.vram_location,
 166                  (unsigned)(rdev->mc.vram_location + rdev->mc.mc_vram_size - 1));
 167         DRM_INFO("radeon: GTT %uM\n", (unsigned)(rdev->mc.gtt_size >> 20));
 168         DRM_INFO("radeon: GTT from 0x%08X to 0x%08X\n",
 169                  (unsigned)rdev->mc.gtt_location,
 170                  (unsigned)(rdev->mc.gtt_location + rdev->mc.gtt_size - 1));
 171         return 0;
 172 }
 173
 174
 175 /*
 176  * GPU helpers function.
 177  */
 178 bool radeon_card_posted(struct radeon_device *rdev)
 179 {
 180         uint32_t reg;
 181
 182         /* first check CRTCs */
 183         if (ASIC_IS_AVIVO(rdev)) {
 184                 reg = RREG32(AVIVO_D1CRTC_CONTROL) |
 185                       RREG32(AVIVO_D2CRTC_CONTROL);
 186                 if (reg & AVIVO_CRTC_EN) {
 187                         return true;
 188                 }
 189         } else {
 190                 reg = RREG32(RADEON_CRTC_GEN_CNTL) |
 191                       RREG32(RADEON_CRTC2_GEN_CNTL);
 192                 if (reg & RADEON_CRTC_EN) {
 193                         return true;
 194                 }
 195         }
 196
 197         /* then check MEM_SIZE, in case the crtcs are off */
 198         if (rdev->family >= CHIP_R600)
 199                 reg = RREG32(R600_CONFIG_MEMSIZE);
 200         else
 201                 reg = RREG32(RADEON_CONFIG_MEMSIZE);
 202
 203         if (reg)
 204                 return true;
 205
 206         return false;
 207
 208 }
 209
 210 int radeon_dummy_page_init(struct radeon_device *rdev)
 211 {
 212         rdev->dummy_page.page = alloc_page(GFP_DMA32 | GFP_KERNEL | __GFP_ZERO);
 213         if (rdev->dummy_page.page == NULL)
 214                 return -ENOMEM;
 215         rdev->dummy_page.addr = pci_map_page(rdev->pdev, rdev->dummy_page.page,
 216                                         0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
 217         if (!rdev->dummy_page.addr) {
 218                 __free_page(rdev->dummy_page.page);
 219                 rdev->dummy_page.page = NULL;
 220                 return -ENOMEM;
 221         }
 222         return 0;
 223 }
 224
 225 void radeon_dummy_page_fini(struct radeon_device *rdev)
 226 {
 227         if (rdev->dummy_page.page == NULL)
 228                 return;
 229         pci_unmap_page(rdev->pdev, rdev->dummy_page.addr,
 230                         PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
 231         __free_page(rdev->dummy_page.page);
 232         rdev->dummy_page.page = NULL;
 233 }
 234
 235
 236 /*
 237  * Registers accessors functions.
 238  */
 239 uint32_t radeon_invalid_rreg(struct radeon_device *rdev, uint32_t reg)
 240 {
 241         DRM_ERROR("Invalid callback to read register 0x%04X\n", reg);
 242         BUG_ON(1);
 243         return 0;
 244 }
 245
 246 void radeon_invalid_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
 247 {
 248         DRM_ERROR("Invalid callback to write register 0x%04X with 0x%08X\n",
 249                   reg, v);
 250         BUG_ON(1);
 251 }
 252
 253 void radeon_register_accessor_init(struct radeon_device *rdev)
 254 {
 255         rdev->mc_rreg = &radeon_invalid_rreg;
 256         rdev->mc_wreg = &radeon_invalid_wreg;
 257         rdev->pll_rreg = &radeon_invalid_rreg;
 258         rdev->pll_wreg = &radeon_invalid_wreg;
 259         rdev->pciep_rreg = &radeon_invalid_rreg;
 260         rdev->pciep_wreg = &radeon_invalid_wreg;
 261
 262         /* Don't change order as we are overridding accessor. */
 263         if (rdev->family < CHIP_RV515) {
 264                 rdev->pcie_reg_mask = 0xff;
 265         } else {
 266                 rdev->pcie_reg_mask = 0x7ff;
 267         }
 268         /* FIXME: not sure here */
 269         if (rdev->family <= CHIP_R580) {
 270                 rdev->pll_rreg = &r100_pll_rreg;
 271                 rdev->pll_wreg = &r100_pll_wreg;
 272         }
 273         if (rdev->family >= CHIP_R420) {
 274                 rdev->mc_rreg = &r420_mc_rreg;
 275                 rdev->mc_wreg = &r420_mc_wreg;
 276         }
 277         if (rdev->family >= CHIP_RV515) {
 278                 rdev->mc_rreg = &rv515_mc_rreg;
 279                 rdev->mc_wreg = &rv515_mc_wreg;
 280         }
 281         if (rdev->family == CHIP_RS400 || rdev->family == CHIP_RS480) {
 282                 rdev->mc_rreg = &rs400_mc_rreg;
 283                 rdev->mc_wreg = &rs400_mc_wreg;
 284         }
 285         if (rdev->family == CHIP_RS690 || rdev->family == CHIP_RS740) {
 286                 rdev->mc_rreg = &rs690_mc_rreg;
 287                 rdev->mc_wreg = &rs690_mc_wreg;
 288         }
 289         if (rdev->family == CHIP_RS600) {
 290                 rdev->mc_rreg = &rs600_mc_rreg;
 291                 rdev->mc_wreg = &rs600_mc_wreg;
 292         }
 293         if (rdev->family >= CHIP_R600) {
 294                 rdev->pciep_rreg = &r600_pciep_rreg;
 295                 rdev->pciep_wreg = &r600_pciep_wreg;
 296         }
 297 }
 298
 299
 300 /*
 301  * ASIC
 302  */
 303 int radeon_asic_init(struct radeon_device *rdev)
 304 {
 305         radeon_register_accessor_init(rdev);
 306         switch (rdev->family) {
 307         case CHIP_R100:
 308         case CHIP_RV100:
 309         case CHIP_RS100:
 310         case CHIP_RV200:
 311         case CHIP_RS200:
 312         case CHIP_R200:
 313         case CHIP_RV250:
 314         case CHIP_RS300:
 315         case CHIP_RV280:
 316                 rdev->asic = &r100_asic;
 317                 break;
 318         case CHIP_R300:
 319         case CHIP_R350:
 320         case CHIP_RV350:
 321         case CHIP_RV380:
 322                 rdev->asic = &r300_asic;
 323                 if (rdev->flags & RADEON_IS_PCIE) {
 324                         rdev->asic->gart_init = &rv370_pcie_gart_init;
 325                         rdev->asic->gart_fini = &rv370_pcie_gart_fini;
 326                         rdev->asic->gart_enable = &rv370_pcie_gart_enable;
 327                         rdev->asic->gart_disable = &rv370_pcie_gart_disable;
 328                         rdev->asic->gart_tlb_flush = &rv370_pcie_gart_tlb_flush;
 329                         rdev->asic->gart_set_page = &rv370_pcie_gart_set_page;
 330                 }
 331                 break;
 332         case CHIP_R420:
 333         case CHIP_R423:
 334         case CHIP_RV410:
 335                 rdev->asic = &r420_asic;
 336                 break;
 337         case CHIP_RS400:
 338         case CHIP_RS480:
 339                 rdev->asic = &rs400_asic;
 340                 break;
 341         case CHIP_RS600:
 342                 rdev->asic = &rs600_asic;
 343                 break;
 344         case CHIP_RS690:
 345         case CHIP_RS740:
 346                 rdev->asic = &rs690_asic;
 347                 break;
 348         case CHIP_RV515:
 349                 rdev->asic = &rv515_asic;
 350                 break;
 351         case CHIP_R520:
 352         case CHIP_RV530:
 353         case CHIP_RV560:
 354         case CHIP_RV570:
 355         case CHIP_R580:
 356                 rdev->asic = &r520_asic;
 357                 break;
 358         case CHIP_R600:
 359         case CHIP_RV610:
 360         case CHIP_RV630:
 361         case CHIP_RV620:
 362         case CHIP_RV635:
 363         case CHIP_RV670:
 364         case CHIP_RS780:
 365         case CHIP_RS880:
 366                 rdev->asic = &r600_asic;
 367                 break;
 368         case CHIP_RV770:
 369         case CHIP_RV730:
 370         case CHIP_RV710:
 371         case CHIP_RV740:
 372                 rdev->asic = &rv770_asic;
 373                 break;
 374         default:
 375                 /* FIXME: not supported yet */
 376                 return -EINVAL;
 377         }
 378         return 0;
 379 }
 380
 381
 382 /*
 383  * Wrapper around modesetting bits.
 384  */
 385 int radeon_clocks_init(struct radeon_device *rdev)
 386 {
 387         int r;
 388
 389         r = radeon_static_clocks_init(rdev->ddev);
 390         if (r) {
 391                 return r;
 392         }
 393         DRM_INFO("Clocks initialized !\n");
 394         return 0;
 395 }
 396
 397 void radeon_clocks_fini(struct radeon_device *rdev)
 398 {
 399 }
 400
 401 /* ATOM accessor methods */
 402 static uint32_t cail_pll_read(struct card_info *info, uint32_t reg)
 403 {
 404         struct radeon_device *rdev = info->dev->dev_private;
 405         uint32_t r;
 406
 407         r = rdev->pll_rreg(rdev, reg);
 408         return r;
 409 }
 410
 411 static void cail_pll_write(struct card_info *info, uint32_t reg, uint32_t val)
 412 {
 413         struct radeon_device *rdev = info->dev->dev_private;
 414
 415         rdev->pll_wreg(rdev, reg, val);
 416 }
 417
 418 static uint32_t cail_mc_read(struct card_info *info, uint32_t reg)
 419 {
 420         struct radeon_device *rdev = info->dev->dev_private;
 421         uint32_t r;
 422
 423         r = rdev->mc_rreg(rdev, reg);
 424         return r;
 425 }
 426
 427 static void cail_mc_write(struct card_info *info, uint32_t reg, uint32_t val)
 428 {
 429         struct radeon_device *rdev = info->dev->dev_private;
 430
 431         rdev->mc_wreg(rdev, reg, val);
 432 }
 433
 434 static void cail_reg_write(struct card_info *info, uint32_t reg, uint32_t val)
 435 {
 436         struct radeon_device *rdev = info->dev->dev_private;
 437
 438         WREG32(reg*4, val);
 439 }
 440
 441 static uint32_t cail_reg_read(struct card_info *info, uint32_t reg)
 442 {
 443         struct radeon_device *rdev = info->dev->dev_private;
 444         uint32_t r;
 445
 446         r = RREG32(reg*4);
 447         return r;
 448 }
 449
 450 static struct card_info atom_card_info = {
 451         .dev = NULL,
 452         .reg_read = cail_reg_read,
 453         .reg_write = cail_reg_write,
 454         .mc_read = cail_mc_read,
 455         .mc_write = cail_mc_write,
 456         .pll_read = cail_pll_read,
 457         .pll_write = cail_pll_write,
 458 };
 459
 460 int radeon_atombios_init(struct radeon_device *rdev)
 461 {
 462         atom_card_info.dev = rdev->ddev;
 463         rdev->mode_info.atom_context = atom_parse(&atom_card_info, rdev->bios);
 464         radeon_atom_initialize_bios_scratch_regs(rdev->ddev);
 465         return 0;
 466 }
 467
 468 void radeon_atombios_fini(struct radeon_device *rdev)
 469 {
 470         kfree(rdev->mode_info.atom_context);
 471 }
 472
 473 int radeon_combios_init(struct radeon_device *rdev)
 474 {
 475         radeon_combios_initialize_bios_scratch_regs(rdev->ddev);
 476         return 0;
 477 }
 478
 479 void radeon_combios_fini(struct radeon_device *rdev)
 480 {
 481 }
 482
 483
 484 /*
 485  * Radeon device.
 486  */
 487 int radeon_device_init(struct radeon_device *rdev,
 488                        struct drm_device *ddev,
 489                        struct pci_dev *pdev,
 490                        uint32_t flags)
 491 {
 492         int r;
 493         int dma_bits;
 494
 495         DRM_INFO("radeon: Initializing kernel modesetting.\n");
 496         rdev->shutdown = false;
 497         rdev->dev = &pdev->dev;
 498         rdev->ddev = ddev;
 499         rdev->pdev = pdev;
 500         rdev->flags = flags;
 501         rdev->family = flags & RADEON_FAMILY_MASK;
 502         rdev->is_atom_bios = false;
 503         rdev->usec_timeout = RADEON_MAX_USEC_TIMEOUT;
 504         rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
 505         rdev->gpu_lockup = false;
 506         rdev->accel_working = false;
 507         /* mutex initialization are all done here so we
 508          * can recall function without having locking issues */
 509         mutex_init(&rdev->cs_mutex);
 510         mutex_init(&rdev->ib_pool.mutex);
 511         mutex_init(&rdev->cp.mutex);
 512         rwlock_init(&rdev->fence_drv.lock);
 513         INIT_LIST_HEAD(&rdev->gem.objects);
 514
 515         /* Set asic functions */
 516         r = radeon_asic_init(rdev);
 517         if (r) {
 518                 return r;
 519         }
 520
 521         if (radeon_agpmode == -1) {
 522                 rdev->flags &= ~RADEON_IS_AGP;
 523                 if (rdev->family >= CHIP_RV515 ||
 524                     rdev->family == CHIP_RV380 ||
 525                     rdev->family == CHIP_RV410 ||
 526                     rdev->family == CHIP_R423) {
 527                         DRM_INFO("Forcing AGP to PCIE mode\n");
 528                         rdev->flags |= RADEON_IS_PCIE;
 529                         rdev->asic->gart_init = &rv370_pcie_gart_init;
 530                         rdev->asic->gart_fini = &rv370_pcie_gart_fini;
 531                         rdev->asic->gart_enable = &rv370_pcie_gart_enable;
 532                         rdev->asic->gart_disable = &rv370_pcie_gart_disable;
 533                         rdev->asic->gart_tlb_flush = &rv370_pcie_gart_tlb_flush;
 534                         rdev->asic->gart_set_page = &rv370_pcie_gart_set_page;
 535                 } else {
 536                         DRM_INFO("Forcing AGP to PCI mode\n");
 537                         rdev->flags |= RADEON_IS_PCI;
 538                         rdev->asic->gart_init = &r100_pci_gart_init;
 539                         rdev->asic->gart_fini = &r100_pci_gart_fini;
 540                         rdev->asic->gart_enable = &r100_pci_gart_enable;
 541                         rdev->asic->gart_disable = &r100_pci_gart_disable;
 542                         rdev->asic->gart_tlb_flush = &r100_pci_gart_tlb_flush;
 543                         rdev->asic->gart_set_page = &r100_pci_gart_set_page;
 544                 }
 545         }
 546
 547         /* set DMA mask + need_dma32 flags.
 548          * PCIE - can handle 40-bits.
 549          * IGP - can handle 40-bits (in theory)
 550          * AGP - generally dma32 is safest
 551          * PCI - only dma32
 552          */
 553         rdev->need_dma32 = false;
 554         if (rdev->flags & RADEON_IS_AGP)
 555                 rdev->need_dma32 = true;
 556         if (rdev->flags & RADEON_IS_PCI)
 557                 rdev->need_dma32 = true;
 558
 559         dma_bits = rdev->need_dma32 ? 32 : 40;
 560         r = pci_set_dma_mask(rdev->pdev, DMA_BIT_MASK(dma_bits));
 561         if (r) {
 562                 printk(KERN_WARNING "radeon: No suitable DMA available.\n");
 563         }
 564
 565         /* Registers mapping */
 566         /* TODO: block userspace mapping of io register */
 567         rdev->rmmio_base = drm_get_resource_start(rdev->ddev, 2);
 568         rdev->rmmio_size = drm_get_resource_len(rdev->ddev, 2);
 569         rdev->rmmio = ioremap(rdev->rmmio_base, rdev->rmmio_size);
 570         if (rdev->rmmio == NULL) {
 571                 return -ENOMEM;
 572         }
 573         DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)rdev->rmmio_base);
 574         DRM_INFO("register mmio size: %u\n", (unsigned)rdev->rmmio_size);
 575
 576         rdev->new_init_path = false;
 577         r = radeon_init(rdev);
 578         if (r) {
 579                 return r;
 580         }
 581         if (!rdev->new_init_path) {
 582                 /* Setup errata flags */
 583                 radeon_errata(rdev);
 584                 /* Initialize scratch registers */
 585                 radeon_scratch_init(rdev);
 586                 /* Initialize surface registers */
 587                 radeon_surface_init(rdev);
 588
 589                 /* TODO: disable VGA need to use VGA request */
 590                 /* BIOS*/
 591                 if (!radeon_get_bios(rdev)) {
 592                         if (ASIC_IS_AVIVO(rdev))
 593                                 return -EINVAL;
 594                 }
 595                 if (rdev->is_atom_bios) {
 596                         r = radeon_atombios_init(rdev);
 597                         if (r) {
 598                                 return r;
 599                         }
 600                 } else {
 601                         r = radeon_combios_init(rdev);
 602                         if (r) {
 603                                 return r;
 604                         }
 605                 }
 606                 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 607                 if (radeon_gpu_reset(rdev)) {
 608                         /* FIXME: what do we want to do here ? */
 609                 }
 610                 /* check if cards are posted or not */
 611                 if (!radeon_card_posted(rdev) && rdev->bios) {
 612                         DRM_INFO("GPU not posted. posting now...\n");
 613                         if (rdev->is_atom_bios) {
 614                                 atom_asic_init(rdev->mode_info.atom_context);
 615                         } else {
 616                                 radeon_combios_asic_init(rdev->ddev);
 617                         }
 618                 }
 619                 /* Get clock & vram information */
 620                 radeon_get_clock_info(rdev->ddev);
 621                 radeon_vram_info(rdev);
 622                 /* Initialize clocks */
 623                 r = radeon_clocks_init(rdev);
 624                 if (r) {
 625                         return r;
 626                 }
 627
 628                 /* Initialize memory controller (also test AGP) */
 629                 r = radeon_mc_init(rdev);
 630                 if (r) {
 631                         return r;
 632                 }
 633                 /* Fence driver */
 634                 r = radeon_fence_driver_init(rdev);
 635                 if (r) {
 636                         return r;
 637                 }
 638                 r = radeon_irq_kms_init(rdev);
 639                 if (r) {
 640                         return r;
 641                 }
 642                 /* Memory manager */
 643                 r = radeon_object_init(rdev);
 644                 if (r) {
 645                         return r;
 646                 }
 647                 r = radeon_gpu_gart_init(rdev);
 648                 if (r)
 649                         return r;
 650                 /* Initialize GART (initialize after TTM so we can allocate
 651                  * memory through TTM but finalize after TTM) */
 652                 r = radeon_gart_enable(rdev);
 653                 if (r)
 654                         return 0;
 655                         r = radeon_gem_init(rdev);
 656                 if (r)
 657                         return 0;
 658
 659                 /* 1M ring buffer */
 660                 r = radeon_cp_init(rdev, 1024 * 1024);
 661                 if (r)
 662                         return 0;
 663                 r = radeon_wb_init(rdev);
 664                 if (r)
 665                         DRM_ERROR("radeon: failled initializing WB (%d).\n", r);
 666                 r = radeon_ib_pool_init(rdev);
 667                 if (r)
 668                         return 0;
 669                 r = radeon_ib_test(rdev);
 670                 if (r)
 671                         return 0;
 672                 rdev->accel_working = true;
 673         }
 674         DRM_INFO("radeon: kernel modesetting successfully initialized.\n");
 675         if (radeon_testing) {
 676                 radeon_test_moves(rdev);
 677         }
 678         if (radeon_benchmarking) {
 679                 radeon_benchmark(rdev);
 680         }
 681         return 0;
 682 }
 683
 684 void radeon_device_fini(struct radeon_device *rdev)
 685 {
 686         DRM_INFO("radeon: finishing device.\n");
 687         rdev->shutdown = true;
 688         /* Order matter so becarefull if you rearrange anythings */
 689         if (!rdev->new_init_path) {
 690                 radeon_ib_pool_fini(rdev);
 691                 radeon_cp_fini(rdev);
 692                 radeon_wb_fini(rdev);
 693                 radeon_gpu_gart_fini(rdev);
 694                 radeon_gem_fini(rdev);
 695                 radeon_mc_fini(rdev);
 696 #if __OS_HAS_AGP
 697                 radeon_agp_fini(rdev);
 698 #endif
 699                 radeon_irq_kms_fini(rdev);
 700                 radeon_fence_driver_fini(rdev);
 701                 radeon_clocks_fini(rdev);
 702                 radeon_object_fini(rdev);
 703                 if (rdev->is_atom_bios) {
 704                         radeon_atombios_fini(rdev);
 705                 } else {
 706                         radeon_combios_fini(rdev);
 707                 }
 708                 kfree(rdev->bios);
 709                 rdev->bios = NULL;
 710         } else {
 711                 radeon_fini(rdev);
 712         }
 713         iounmap(rdev->rmmio);
 714         rdev->rmmio = NULL;
 715 }
 716
 717
 718 /*
 719  * Suspend & resume.
 720  */
 721 int radeon_suspend_kms(struct drm_device *dev, pm_message_t state)
 722 {
 723         struct radeon_device *rdev = dev->dev_private;
 724         struct drm_crtc *crtc;
 725
 726         if (dev == NULL || rdev == NULL) {
 727                 return -ENODEV;
 728         }
 729         if (state.event == PM_EVENT_PRETHAW) {
 730                 return 0;
 731         }
 732         /* unpin the front buffers */
 733         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 734                 struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->fb);
 735                 struct radeon_object *robj;
 736
 737                 if (rfb == NULL || rfb->obj == NULL) {
 738                         continue;
 739                 }
 740                 robj = rfb->obj->driver_private;
 741                 if (robj != rdev->fbdev_robj) {
 742                         radeon_object_unpin(robj);
 743                 }
 744         }
 745         /* evict vram memory */
 746         radeon_object_evict_vram(rdev);
 747         /* wait for gpu to finish processing current batch */
 748         radeon_fence_wait_last(rdev);
 749
 750         radeon_save_bios_scratch_regs(rdev);
 751
 752         if (!rdev->new_init_path) {
 753                 radeon_cp_disable(rdev);
 754                 radeon_gart_disable(rdev);
 755                 rdev->irq.sw_int = false;
 756                 radeon_irq_set(rdev);
 757         } else {
 758                 radeon_suspend(rdev);
 759         }
 760         /* evict remaining vram memory */
 761         radeon_object_evict_vram(rdev);
 762
 763         pci_save_state(dev->pdev);
 764         if (state.event == PM_EVENT_SUSPEND) {
 765                 /* Shut down the device */
 766                 pci_disable_device(dev->pdev);
 767                 pci_set_power_state(dev->pdev, PCI_D3hot);
 768         }
 769         acquire_console_sem();
 770         fb_set_suspend(rdev->fbdev_info, 1);
 771         release_console_sem();
 772         return 0;
 773 }
 774
 775 int radeon_resume_kms(struct drm_device *dev)
 776 {
 777         struct radeon_device *rdev = dev->dev_private;
 778         int r;
 779
 780         acquire_console_sem();
 781         pci_set_power_state(dev->pdev, PCI_D0);
 782         pci_restore_state(dev->pdev);
 783         if (pci_enable_device(dev->pdev)) {
 784                 release_console_sem();
 785                 return -1;
 786         }
 787         pci_set_master(dev->pdev);
 788         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 789         if (!rdev->new_init_path) {
 790                 if (radeon_gpu_reset(rdev)) {
 791                         /* FIXME: what do we want to do here ? */
 792                 }
 793                 /* post card */
 794                 if (rdev->is_atom_bios) {
 795                         atom_asic_init(rdev->mode_info.atom_context);
 796                 } else {
 797                         radeon_combios_asic_init(rdev->ddev);
 798                 }
 799                 /* Initialize clocks */
 800                 r = radeon_clocks_init(rdev);
 801                 if (r) {
 802                         release_console_sem();
 803                         return r;
 804                 }
 805                 /* Enable IRQ */
 806                 rdev->irq.sw_int = true;
 807                 radeon_irq_set(rdev);
 808                 /* Initialize GPU Memory Controller */
 809                 r = radeon_mc_init(rdev);
 810                 if (r) {
 811                         goto out;
 812                 }
 813                 r = radeon_gart_enable(rdev);
 814                 if (r) {
 815                         goto out;
 816                 }
 817                 r = radeon_cp_init(rdev, rdev->cp.ring_size);
 818                 if (r) {
 819                         goto out;
 820                 }
 821         } else {
 822                 radeon_resume(rdev);
 823         }
 824 out:
 825         radeon_restore_bios_scratch_regs(rdev);
 826         fb_set_suspend(rdev->fbdev_info, 0);
 827         release_console_sem();
 828
 829         /* blat the mode back in */
 830         drm_helper_resume_force_mode(dev);
 831         return 0;
 832 }
 833
 834
 835 /*
 836  * Debugfs
 837  */
 838 struct radeon_debugfs {
 839         struct drm_info_list    *files;
 840         unsigned                num_files;
 841 };
 842 static struct radeon_debugfs _radeon_debugfs[RADEON_DEBUGFS_MAX_NUM_FILES];
 843 static unsigned _radeon_debugfs_count = 0;
 844
 845 int radeon_debugfs_add_files(struct radeon_device *rdev,
 846                              struct drm_info_list *files,
 847                              unsigned nfiles)
 848 {
 849         unsigned i;
 850
 851         for (i = 0; i < _radeon_debugfs_count; i++) {
 852                 if (_radeon_debugfs[i].files == files) {
 853                         /* Already registered */
 854                         return 0;
 855                 }
 856         }
 857         if ((_radeon_debugfs_count + nfiles) > RADEON_DEBUGFS_MAX_NUM_FILES) {
 858                 DRM_ERROR("Reached maximum number of debugfs files.\n");
 859                 DRM_ERROR("Report so we increase RADEON_DEBUGFS_MAX_NUM_FILES.\n");
 860                 return -EINVAL;
 861         }
 862         _radeon_debugfs[_radeon_debugfs_count].files = files;
 863         _radeon_debugfs[_radeon_debugfs_count].num_files = nfiles;
 864         _radeon_debugfs_count++;
 865 #if defined(CONFIG_DEBUG_FS)
 866         drm_debugfs_create_files(files, nfiles,
 867                                  rdev->ddev->control->debugfs_root,
 868                                  rdev->ddev->control);
 869         drm_debugfs_create_files(files, nfiles,
 870                                  rdev->ddev->primary->debugfs_root,
 871                                  rdev->ddev->primary);
 872 #endif
 873         return 0;
 874 }
 875
 876 #if defined(CONFIG_DEBUG_FS)
 877 int radeon_debugfs_init(struct drm_minor *minor)
 878 {
 879         return 0;
 880 }
 881
 882 void radeon_debugfs_cleanup(struct drm_minor *minor)
 883 {
 884         unsigned i;
 885
 886         for (i = 0; i < _radeon_debugfs_count; i++) {
 887                 drm_debugfs_remove_files(_radeon_debugfs[i].files,
 888                                          _radeon_debugfs[i].num_files, minor);
 889         }
 890 }
 891 #endif