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                 break;
 324         case CHIP_R420:
 325         case CHIP_R423:
 326         case CHIP_RV410:
 327                 rdev->asic = &r420_asic;
 328                 break;
 329         case CHIP_RS400:
 330         case CHIP_RS480:
 331                 rdev->asic = &rs400_asic;
 332                 break;
 333         case CHIP_RS600:
 334                 rdev->asic = &rs600_asic;
 335                 break;
 336         case CHIP_RS690:
 337         case CHIP_RS740:
 338                 rdev->asic = &rs690_asic;
 339                 break;
 340         case CHIP_RV515:
 341                 rdev->asic = &rv515_asic;
 342                 break;
 343         case CHIP_R520:
 344         case CHIP_RV530:
 345         case CHIP_RV560:
 346         case CHIP_RV570:
 347         case CHIP_R580:
 348                 rdev->asic = &r520_asic;
 349                 break;
 350         case CHIP_R600:
 351         case CHIP_RV610:
 352         case CHIP_RV630:
 353         case CHIP_RV620:
 354         case CHIP_RV635:
 355         case CHIP_RV670:
 356         case CHIP_RS780:
 357         case CHIP_RS880:
 358                 rdev->asic = &r600_asic;
 359                 break;
 360         case CHIP_RV770:
 361         case CHIP_RV730:
 362         case CHIP_RV710:
 363         case CHIP_RV740:
 364                 rdev->asic = &rv770_asic;
 365                 break;
 366         default:
 367                 /* FIXME: not supported yet */
 368                 return -EINVAL;
 369         }
 370         return 0;
 371 }
 372
 373
 374 /*
 375  * Wrapper around modesetting bits.
 376  */
 377 int radeon_clocks_init(struct radeon_device *rdev)
 378 {
 379         int r;
 380
 381         radeon_get_clock_info(rdev->ddev);
 382         r = radeon_static_clocks_init(rdev->ddev);
 383         if (r) {
 384                 return r;
 385         }
 386         DRM_INFO("Clocks initialized !\n");
 387         return 0;
 388 }
 389
 390 void radeon_clocks_fini(struct radeon_device *rdev)
 391 {
 392 }
 393
 394 /* ATOM accessor methods */
 395 static uint32_t cail_pll_read(struct card_info *info, uint32_t reg)
 396 {
 397         struct radeon_device *rdev = info->dev->dev_private;
 398         uint32_t r;
 399
 400         r = rdev->pll_rreg(rdev, reg);
 401         return r;
 402 }
 403
 404 static void cail_pll_write(struct card_info *info, uint32_t reg, uint32_t val)
 405 {
 406         struct radeon_device *rdev = info->dev->dev_private;
 407
 408         rdev->pll_wreg(rdev, reg, val);
 409 }
 410
 411 static uint32_t cail_mc_read(struct card_info *info, uint32_t reg)
 412 {
 413         struct radeon_device *rdev = info->dev->dev_private;
 414         uint32_t r;
 415
 416         r = rdev->mc_rreg(rdev, reg);
 417         return r;
 418 }
 419
 420 static void cail_mc_write(struct card_info *info, uint32_t reg, uint32_t val)
 421 {
 422         struct radeon_device *rdev = info->dev->dev_private;
 423
 424         rdev->mc_wreg(rdev, reg, val);
 425 }
 426
 427 static void cail_reg_write(struct card_info *info, uint32_t reg, uint32_t val)
 428 {
 429         struct radeon_device *rdev = info->dev->dev_private;
 430
 431         WREG32(reg*4, val);
 432 }
 433
 434 static uint32_t cail_reg_read(struct card_info *info, uint32_t reg)
 435 {
 436         struct radeon_device *rdev = info->dev->dev_private;
 437         uint32_t r;
 438
 439         r = RREG32(reg*4);
 440         return r;
 441 }
 442
 443 static struct card_info atom_card_info = {
 444         .dev = NULL,
 445         .reg_read = cail_reg_read,
 446         .reg_write = cail_reg_write,
 447         .mc_read = cail_mc_read,
 448         .mc_write = cail_mc_write,
 449         .pll_read = cail_pll_read,
 450         .pll_write = cail_pll_write,
 451 };
 452
 453 int radeon_atombios_init(struct radeon_device *rdev)
 454 {
 455         atom_card_info.dev = rdev->ddev;
 456         rdev->mode_info.atom_context = atom_parse(&atom_card_info, rdev->bios);
 457         radeon_atom_initialize_bios_scratch_regs(rdev->ddev);
 458         return 0;
 459 }
 460
 461 void radeon_atombios_fini(struct radeon_device *rdev)
 462 {
 463         kfree(rdev->mode_info.atom_context);
 464 }
 465
 466 int radeon_combios_init(struct radeon_device *rdev)
 467 {
 468         radeon_combios_initialize_bios_scratch_regs(rdev->ddev);
 469         return 0;
 470 }
 471
 472 void radeon_combios_fini(struct radeon_device *rdev)
 473 {
 474 }
 475
 476
 477 /*
 478  * Radeon device.
 479  */
 480 int radeon_device_init(struct radeon_device *rdev,
 481                        struct drm_device *ddev,
 482                        struct pci_dev *pdev,
 483                        uint32_t flags)
 484 {
 485         int r;
 486         int dma_bits;
 487
 488         DRM_INFO("radeon: Initializing kernel modesetting.\n");
 489         rdev->shutdown = false;
 490         rdev->dev = &pdev->dev;
 491         rdev->ddev = ddev;
 492         rdev->pdev = pdev;
 493         rdev->flags = flags;
 494         rdev->family = flags & RADEON_FAMILY_MASK;
 495         rdev->is_atom_bios = false;
 496         rdev->usec_timeout = RADEON_MAX_USEC_TIMEOUT;
 497         rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
 498         rdev->gpu_lockup = false;
 499         /* mutex initialization are all done here so we
 500          * can recall function without having locking issues */
 501         mutex_init(&rdev->cs_mutex);
 502         mutex_init(&rdev->ib_pool.mutex);
 503         mutex_init(&rdev->cp.mutex);
 504         rwlock_init(&rdev->fence_drv.lock);
 505         INIT_LIST_HEAD(&rdev->gem.objects);
 506
 507         if (radeon_agpmode == -1) {
 508                 rdev->flags &= ~RADEON_IS_AGP;
 509                 if (rdev->family >= CHIP_RV515 ||
 510                     rdev->family == CHIP_RV380 ||
 511                     rdev->family == CHIP_RV410 ||
 512                     rdev->family == CHIP_R423) {
 513                         DRM_INFO("Forcing AGP to PCIE mode\n");
 514                         rdev->flags |= RADEON_IS_PCIE;
 515                 } else {
 516                         DRM_INFO("Forcing AGP to PCI mode\n");
 517                         rdev->flags |= RADEON_IS_PCI;
 518                 }
 519         }
 520
 521         /* Set asic functions */
 522         r = radeon_asic_init(rdev);
 523         if (r) {
 524                 return r;
 525         }
 526
 527         /* set DMA mask + need_dma32 flags.
 528          * PCIE - can handle 40-bits.
 529          * IGP - can handle 40-bits (in theory)
 530          * AGP - generally dma32 is safest
 531          * PCI - only dma32
 532          */
 533         rdev->need_dma32 = false;
 534         if (rdev->flags & RADEON_IS_AGP)
 535                 rdev->need_dma32 = true;
 536         if (rdev->flags & RADEON_IS_PCI)
 537                 rdev->need_dma32 = true;
 538
 539         dma_bits = rdev->need_dma32 ? 32 : 40;
 540         r = pci_set_dma_mask(rdev->pdev, DMA_BIT_MASK(dma_bits));
 541         if (r) {
 542                 printk(KERN_WARNING "radeon: No suitable DMA available.\n");
 543         }
 544
 545         /* Registers mapping */
 546         /* TODO: block userspace mapping of io register */
 547         rdev->rmmio_base = drm_get_resource_start(rdev->ddev, 2);
 548         rdev->rmmio_size = drm_get_resource_len(rdev->ddev, 2);
 549         rdev->rmmio = ioremap(rdev->rmmio_base, rdev->rmmio_size);
 550         if (rdev->rmmio == NULL) {
 551                 return -ENOMEM;
 552         }
 553         DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)rdev->rmmio_base);
 554         DRM_INFO("register mmio size: %u\n", (unsigned)rdev->rmmio_size);
 555
 556         rdev->new_init_path = false;
 557         r = radeon_init(rdev);
 558         if (r) {
 559                 return r;
 560         }
 561         if (!rdev->new_init_path) {
 562                 /* Setup errata flags */
 563                 radeon_errata(rdev);
 564                 /* Initialize scratch registers */
 565                 radeon_scratch_init(rdev);
 566                 /* Initialize surface registers */
 567                 radeon_surface_init(rdev);
 568
 569                 /* TODO: disable VGA need to use VGA request */
 570                 /* BIOS*/
 571                 if (!radeon_get_bios(rdev)) {
 572                         if (ASIC_IS_AVIVO(rdev))
 573                                 return -EINVAL;
 574                 }
 575                 if (rdev->is_atom_bios) {
 576                         r = radeon_atombios_init(rdev);
 577                         if (r) {
 578                                 return r;
 579                         }
 580                 } else {
 581                         r = radeon_combios_init(rdev);
 582                         if (r) {
 583                                 return r;
 584                         }
 585                 }
 586                 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 587                 if (radeon_gpu_reset(rdev)) {
 588                         /* FIXME: what do we want to do here ? */
 589                 }
 590                 /* check if cards are posted or not */
 591                 if (!radeon_card_posted(rdev) && rdev->bios) {
 592                         DRM_INFO("GPU not posted. posting now...\n");
 593                         if (rdev->is_atom_bios) {
 594                                 atom_asic_init(rdev->mode_info.atom_context);
 595                         } else {
 596                                 radeon_combios_asic_init(rdev->ddev);
 597                         }
 598                 }
 599                 /* Initialize clocks */
 600                 r = radeon_clocks_init(rdev);
 601                 if (r) {
 602                         return r;
 603                 }
 604                 /* Get vram informations */
 605                 radeon_vram_info(rdev);
 606
 607                 /* Initialize memory controller (also test AGP) */
 608                 r = radeon_mc_init(rdev);
 609                 if (r) {
 610                         return r;
 611                 }
 612                 /* Fence driver */
 613                 r = radeon_fence_driver_init(rdev);
 614                 if (r) {
 615                         return r;
 616                 }
 617                 r = radeon_irq_kms_init(rdev);
 618                 if (r) {
 619                         return r;
 620                 }
 621                 /* Memory manager */
 622                 r = radeon_object_init(rdev);
 623                 if (r) {
 624                         return r;
 625                 }
 626                 /* Initialize GART (initialize after TTM so we can allocate
 627                  * memory through TTM but finalize after TTM) */
 628                 r = radeon_gart_enable(rdev);
 629                 if (!r) {
 630                         r = radeon_gem_init(rdev);
 631                 }
 632
 633                 /* 1M ring buffer */
 634                 if (!r) {
 635                         r = radeon_cp_init(rdev, 1024 * 1024);
 636                 }
 637                 if (!r) {
 638                         r = radeon_wb_init(rdev);
 639                         if (r) {
 640                                 DRM_ERROR("radeon: failled initializing WB (%d).\n", r);
 641                                 return r;
 642                         }
 643                 }
 644                 if (!r) {
 645                         r = radeon_ib_pool_init(rdev);
 646                         if (r) {
 647                                 DRM_ERROR("radeon: failled initializing IB pool (%d).\n", r);
 648                                 return r;
 649                         }
 650                 }
 651                 if (!r) {
 652                         r = radeon_ib_test(rdev);
 653                         if (r) {
 654                                 DRM_ERROR("radeon: failled testing IB (%d).\n", r);
 655                                 return r;
 656                         }
 657                 }
 658         }
 659         DRM_INFO("radeon: kernel modesetting successfully initialized.\n");
 660         if (radeon_testing) {
 661                 radeon_test_moves(rdev);
 662         }
 663         if (radeon_benchmarking) {
 664                 radeon_benchmark(rdev);
 665         }
 666         return 0;
 667 }
 668
 669 void radeon_device_fini(struct radeon_device *rdev)
 670 {
 671         DRM_INFO("radeon: finishing device.\n");
 672         rdev->shutdown = true;
 673         /* Order matter so becarefull if you rearrange anythings */
 674         if (!rdev->new_init_path) {
 675                 radeon_ib_pool_fini(rdev);
 676                 radeon_cp_fini(rdev);
 677                 radeon_wb_fini(rdev);
 678                 radeon_gem_fini(rdev);
 679                 radeon_mc_fini(rdev);
 680 #if __OS_HAS_AGP
 681                 radeon_agp_fini(rdev);
 682 #endif
 683                 radeon_irq_kms_fini(rdev);
 684                 radeon_fence_driver_fini(rdev);
 685                 radeon_clocks_fini(rdev);
 686                 radeon_object_fini(rdev);
 687                 if (rdev->is_atom_bios) {
 688                         radeon_atombios_fini(rdev);
 689                 } else {
 690                         radeon_combios_fini(rdev);
 691                 }
 692                 kfree(rdev->bios);
 693                 rdev->bios = NULL;
 694         } else {
 695                 radeon_fini(rdev);
 696         }
 697         iounmap(rdev->rmmio);
 698         rdev->rmmio = NULL;
 699 }
 700
 701
 702 /*
 703  * Suspend & resume.
 704  */
 705 int radeon_suspend_kms(struct drm_device *dev, pm_message_t state)
 706 {
 707         struct radeon_device *rdev = dev->dev_private;
 708         struct drm_crtc *crtc;
 709
 710         if (dev == NULL || rdev == NULL) {
 711                 return -ENODEV;
 712         }
 713         if (state.event == PM_EVENT_PRETHAW) {
 714                 return 0;
 715         }
 716         /* unpin the front buffers */
 717         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 718                 struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->fb);
 719                 struct radeon_object *robj;
 720
 721                 if (rfb == NULL || rfb->obj == NULL) {
 722                         continue;
 723                 }
 724                 robj = rfb->obj->driver_private;
 725                 if (robj != rdev->fbdev_robj) {
 726                         radeon_object_unpin(robj);
 727                 }
 728         }
 729         /* evict vram memory */
 730         radeon_object_evict_vram(rdev);
 731         /* wait for gpu to finish processing current batch */
 732         radeon_fence_wait_last(rdev);
 733
 734         if (!rdev->new_init_path) {
 735                 radeon_cp_disable(rdev);
 736                 radeon_gart_disable(rdev);
 737                 rdev->irq.sw_int = false;
 738                 radeon_irq_set(rdev);
 739         } else {
 740                 radeon_suspend(rdev);
 741         }
 742         /* evict remaining vram memory */
 743         radeon_object_evict_vram(rdev);
 744
 745         pci_save_state(dev->pdev);
 746         if (state.event == PM_EVENT_SUSPEND) {
 747                 /* Shut down the device */
 748                 pci_disable_device(dev->pdev);
 749                 pci_set_power_state(dev->pdev, PCI_D3hot);
 750         }
 751         acquire_console_sem();
 752         fb_set_suspend(rdev->fbdev_info, 1);
 753         release_console_sem();
 754         return 0;
 755 }
 756
 757 int radeon_resume_kms(struct drm_device *dev)
 758 {
 759         struct radeon_device *rdev = dev->dev_private;
 760         int r;
 761
 762         acquire_console_sem();
 763         pci_set_power_state(dev->pdev, PCI_D0);
 764         pci_restore_state(dev->pdev);
 765         if (pci_enable_device(dev->pdev)) {
 766                 release_console_sem();
 767                 return -1;
 768         }
 769         pci_set_master(dev->pdev);
 770         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 771         if (!rdev->new_init_path) {
 772                 if (radeon_gpu_reset(rdev)) {
 773                         /* FIXME: what do we want to do here ? */
 774                 }
 775                 /* post card */
 776                 if (rdev->is_atom_bios) {
 777                         atom_asic_init(rdev->mode_info.atom_context);
 778                 } else {
 779                         radeon_combios_asic_init(rdev->ddev);
 780                 }
 781                 /* Initialize clocks */
 782                 r = radeon_clocks_init(rdev);
 783                 if (r) {
 784                         release_console_sem();
 785                         return r;
 786                 }
 787                 /* Enable IRQ */
 788                 rdev->irq.sw_int = true;
 789                 radeon_irq_set(rdev);
 790                 /* Initialize GPU Memory Controller */
 791                 r = radeon_mc_init(rdev);
 792                 if (r) {
 793                         goto out;
 794                 }
 795                 r = radeon_gart_enable(rdev);
 796                 if (r) {
 797                         goto out;
 798                 }
 799                 r = radeon_cp_init(rdev, rdev->cp.ring_size);
 800                 if (r) {
 801                         goto out;
 802                 }
 803         } else {
 804                 radeon_resume(rdev);
 805         }
 806 out:
 807         fb_set_suspend(rdev->fbdev_info, 0);
 808         release_console_sem();
 809
 810         /* blat the mode back in */
 811         drm_helper_resume_force_mode(dev);
 812         return 0;
 813 }
 814
 815
 816 /*
 817  * Debugfs
 818  */
 819 struct radeon_debugfs {
 820         struct drm_info_list    *files;
 821         unsigned                num_files;
 822 };
 823 static struct radeon_debugfs _radeon_debugfs[RADEON_DEBUGFS_MAX_NUM_FILES];
 824 static unsigned _radeon_debugfs_count = 0;
 825
 826 int radeon_debugfs_add_files(struct radeon_device *rdev,
 827                              struct drm_info_list *files,
 828                              unsigned nfiles)
 829 {
 830         unsigned i;
 831
 832         for (i = 0; i < _radeon_debugfs_count; i++) {
 833                 if (_radeon_debugfs[i].files == files) {
 834                         /* Already registered */
 835                         return 0;
 836                 }
 837         }
 838         if ((_radeon_debugfs_count + nfiles) > RADEON_DEBUGFS_MAX_NUM_FILES) {
 839                 DRM_ERROR("Reached maximum number of debugfs files.\n");
 840                 DRM_ERROR("Report so we increase RADEON_DEBUGFS_MAX_NUM_FILES.\n");
 841                 return -EINVAL;
 842         }
 843         _radeon_debugfs[_radeon_debugfs_count].files = files;
 844         _radeon_debugfs[_radeon_debugfs_count].num_files = nfiles;
 845         _radeon_debugfs_count++;
 846 #if defined(CONFIG_DEBUG_FS)
 847         drm_debugfs_create_files(files, nfiles,
 848                                  rdev->ddev->control->debugfs_root,
 849                                  rdev->ddev->control);
 850         drm_debugfs_create_files(files, nfiles,
 851                                  rdev->ddev->primary->debugfs_root,
 852                                  rdev->ddev->primary);
 853 #endif
 854         return 0;
 855 }
 856
 857 #if defined(CONFIG_DEBUG_FS)
 858 int radeon_debugfs_init(struct drm_minor *minor)
 859 {
 860         return 0;
 861 }
 862
 863 void radeon_debugfs_cleanup(struct drm_minor *minor)
 864 {
 865         unsigned i;
 866
 867         for (i = 0; i < _radeon_debugfs_count; i++) {
 868                 drm_debugfs_remove_files(_radeon_debugfs[i].files,
 869                                          _radeon_debugfs[i].num_files, minor);
 870         }
 871 }
 872 #endif