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 <linux/vgaarb.h>
  33 #include "radeon_reg.h"
  34 #include "radeon.h"
  35 #include "radeon_asic.h"
  36 #include "atom.h"
  37
  38 /*
  39  * Clear GPU surface registers.
  40  */
  41 void radeon_surface_init(struct radeon_device *rdev)
  42 {
  43         /* FIXME: check this out */
  44         if (rdev->family < CHIP_R600) {
  45                 int i;
  46
  47                 for (i = 0; i < 8; i++) {
  48                         WREG32(RADEON_SURFACE0_INFO +
  49                                i * (RADEON_SURFACE1_INFO - RADEON_SURFACE0_INFO),
  50                                0);
  51                 }
  52                 /* enable surfaces */
  53                 WREG32(RADEON_SURFACE_CNTL, 0);
  54         }
  55 }
  56
  57 /*
  58  * GPU scratch registers helpers function.
  59  */
  60 void radeon_scratch_init(struct radeon_device *rdev)
  61 {
  62         int i;
  63
  64         /* FIXME: check this out */
  65         if (rdev->family < CHIP_R300) {
  66                 rdev->scratch.num_reg = 5;
  67         } else {
  68                 rdev->scratch.num_reg = 7;
  69         }
  70         for (i = 0; i < rdev->scratch.num_reg; i++) {
  71                 rdev->scratch.free[i] = true;
  72                 rdev->scratch.reg[i] = RADEON_SCRATCH_REG0 + (i * 4);
  73         }
  74 }
  75
  76 int radeon_scratch_get(struct radeon_device *rdev, uint32_t *reg)
  77 {
  78         int i;
  79
  80         for (i = 0; i < rdev->scratch.num_reg; i++) {
  81                 if (rdev->scratch.free[i]) {
  82                         rdev->scratch.free[i] = false;
  83                         *reg = rdev->scratch.reg[i];
  84                         return 0;
  85                 }
  86         }
  87         return -EINVAL;
  88 }
  89
  90 void radeon_scratch_free(struct radeon_device *rdev, uint32_t reg)
  91 {
  92         int i;
  93
  94         for (i = 0; i < rdev->scratch.num_reg; i++) {
  95                 if (rdev->scratch.reg[i] == reg) {
  96                         rdev->scratch.free[i] = true;
  97                         return;
  98                 }
  99         }
 100 }
 101
 102 /*
 103  * MC common functions
 104  */
 105 int radeon_mc_setup(struct radeon_device *rdev)
 106 {
 107         uint32_t tmp;
 108
 109         /* Some chips have an "issue" with the memory controller, the
 110          * location must be aligned to the size. We just align it down,
 111          * too bad if we walk over the top of system memory, we don't
 112          * use DMA without a remapped anyway.
 113          * Affected chips are rv280, all r3xx, and all r4xx, but not IGP
 114          */
 115         /* FGLRX seems to setup like this, VRAM a 0, then GART.
 116          */
 117         /*
 118          * Note: from R6xx the address space is 40bits but here we only
 119          * use 32bits (still have to see a card which would exhaust 4G
 120          * address space).
 121          */
 122         if (rdev->mc.vram_location != 0xFFFFFFFFUL) {
 123                 /* vram location was already setup try to put gtt after
 124                  * if it fits */
 125                 tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size;
 126                 tmp = (tmp + rdev->mc.gtt_size - 1) & ~(rdev->mc.gtt_size - 1);
 127                 if ((0xFFFFFFFFUL - tmp) >= rdev->mc.gtt_size) {
 128                         rdev->mc.gtt_location = tmp;
 129                 } else {
 130                         if (rdev->mc.gtt_size >= rdev->mc.vram_location) {
 131                                 printk(KERN_ERR "[drm] GTT too big to fit "
 132                                        "before or after vram location.\n");
 133                                 return -EINVAL;
 134                         }
 135                         rdev->mc.gtt_location = 0;
 136                 }
 137         } else if (rdev->mc.gtt_location != 0xFFFFFFFFUL) {
 138                 /* gtt location was already setup try to put vram before
 139                  * if it fits */
 140                 if (rdev->mc.mc_vram_size < rdev->mc.gtt_location) {
 141                         rdev->mc.vram_location = 0;
 142                 } else {
 143                         tmp = rdev->mc.gtt_location + rdev->mc.gtt_size;
 144                         tmp += (rdev->mc.mc_vram_size - 1);
 145                         tmp &= ~(rdev->mc.mc_vram_size - 1);
 146                         if ((0xFFFFFFFFUL - tmp) >= rdev->mc.mc_vram_size) {
 147                                 rdev->mc.vram_location = tmp;
 148                         } else {
 149                                 printk(KERN_ERR "[drm] vram too big to fit "
 150                                        "before or after GTT location.\n");
 151                                 return -EINVAL;
 152                         }
 153                 }
 154         } else {
 155                 rdev->mc.vram_location = 0;
 156                 tmp = rdev->mc.mc_vram_size;
 157                 tmp = (tmp + rdev->mc.gtt_size - 1) & ~(rdev->mc.gtt_size - 1);
 158                 rdev->mc.gtt_location = tmp;
 159         }
 160         rdev->mc.vram_start = rdev->mc.vram_location;
 161         rdev->mc.vram_end = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
 162         rdev->mc.gtt_start = rdev->mc.gtt_location;
 163         rdev->mc.gtt_end = rdev->mc.gtt_location + rdev->mc.gtt_size - 1;
 164         DRM_INFO("radeon: VRAM %uM\n", (unsigned)(rdev->mc.mc_vram_size >> 20));
 165         DRM_INFO("radeon: VRAM from 0x%08X to 0x%08X\n",
 166                  (unsigned)rdev->mc.vram_location,
 167                  (unsigned)(rdev->mc.vram_location + rdev->mc.mc_vram_size - 1));
 168         DRM_INFO("radeon: GTT %uM\n", (unsigned)(rdev->mc.gtt_size >> 20));
 169         DRM_INFO("radeon: GTT from 0x%08X to 0x%08X\n",
 170                  (unsigned)rdev->mc.gtt_location,
 171                  (unsigned)(rdev->mc.gtt_location + rdev->mc.gtt_size - 1));
 172         return 0;
 173 }
 174
 175
 176 /*
 177  * GPU helpers function.
 178  */
 179 bool radeon_card_posted(struct radeon_device *rdev)
 180 {
 181         uint32_t reg;
 182
 183         /* first check CRTCs */
 184         if (ASIC_IS_AVIVO(rdev)) {
 185                 reg = RREG32(AVIVO_D1CRTC_CONTROL) |
 186                       RREG32(AVIVO_D2CRTC_CONTROL);
 187                 if (reg & AVIVO_CRTC_EN) {
 188                         return true;
 189                 }
 190         } else {
 191                 reg = RREG32(RADEON_CRTC_GEN_CNTL) |
 192                       RREG32(RADEON_CRTC2_GEN_CNTL);
 193                 if (reg & RADEON_CRTC_EN) {
 194                         return true;
 195                 }
 196         }
 197
 198         /* then check MEM_SIZE, in case the crtcs are off */
 199         if (rdev->family >= CHIP_R600)
 200                 reg = RREG32(R600_CONFIG_MEMSIZE);
 201         else
 202                 reg = RREG32(RADEON_CONFIG_MEMSIZE);
 203
 204         if (reg)
 205                 return true;
 206
 207         return false;
 208
 209 }
 210
 211 int radeon_dummy_page_init(struct radeon_device *rdev)
 212 {
 213         rdev->dummy_page.page = alloc_page(GFP_DMA32 | GFP_KERNEL | __GFP_ZERO);
 214         if (rdev->dummy_page.page == NULL)
 215                 return -ENOMEM;
 216         rdev->dummy_page.addr = pci_map_page(rdev->pdev, rdev->dummy_page.page,
 217                                         0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
 218         if (!rdev->dummy_page.addr) {
 219                 __free_page(rdev->dummy_page.page);
 220                 rdev->dummy_page.page = NULL;
 221                 return -ENOMEM;
 222         }
 223         return 0;
 224 }
 225
 226 void radeon_dummy_page_fini(struct radeon_device *rdev)
 227 {
 228         if (rdev->dummy_page.page == NULL)
 229                 return;
 230         pci_unmap_page(rdev->pdev, rdev->dummy_page.addr,
 231                         PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
 232         __free_page(rdev->dummy_page.page);
 233         rdev->dummy_page.page = NULL;
 234 }
 235
 236
 237 /*
 238  * Registers accessors functions.
 239  */
 240 uint32_t radeon_invalid_rreg(struct radeon_device *rdev, uint32_t reg)
 241 {
 242         DRM_ERROR("Invalid callback to read register 0x%04X\n", reg);
 243         BUG_ON(1);
 244         return 0;
 245 }
 246
 247 void radeon_invalid_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
 248 {
 249         DRM_ERROR("Invalid callback to write register 0x%04X with 0x%08X\n",
 250                   reg, v);
 251         BUG_ON(1);
 252 }
 253
 254 void radeon_register_accessor_init(struct radeon_device *rdev)
 255 {
 256         rdev->mc_rreg = &radeon_invalid_rreg;
 257         rdev->mc_wreg = &radeon_invalid_wreg;
 258         rdev->pll_rreg = &radeon_invalid_rreg;
 259         rdev->pll_wreg = &radeon_invalid_wreg;
 260         rdev->pciep_rreg = &radeon_invalid_rreg;
 261         rdev->pciep_wreg = &radeon_invalid_wreg;
 262
 263         /* Don't change order as we are overridding accessor. */
 264         if (rdev->family < CHIP_RV515) {
 265                 rdev->pcie_reg_mask = 0xff;
 266         } else {
 267                 rdev->pcie_reg_mask = 0x7ff;
 268         }
 269         /* FIXME: not sure here */
 270         if (rdev->family <= CHIP_R580) {
 271                 rdev->pll_rreg = &r100_pll_rreg;
 272                 rdev->pll_wreg = &r100_pll_wreg;
 273         }
 274         if (rdev->family >= CHIP_R420) {
 275                 rdev->mc_rreg = &r420_mc_rreg;
 276                 rdev->mc_wreg = &r420_mc_wreg;
 277         }
 278         if (rdev->family >= CHIP_RV515) {
 279                 rdev->mc_rreg = &rv515_mc_rreg;
 280                 rdev->mc_wreg = &rv515_mc_wreg;
 281         }
 282         if (rdev->family == CHIP_RS400 || rdev->family == CHIP_RS480) {
 283                 rdev->mc_rreg = &rs400_mc_rreg;
 284                 rdev->mc_wreg = &rs400_mc_wreg;
 285         }
 286         if (rdev->family == CHIP_RS690 || rdev->family == CHIP_RS740) {
 287                 rdev->mc_rreg = &rs690_mc_rreg;
 288                 rdev->mc_wreg = &rs690_mc_wreg;
 289         }
 290         if (rdev->family == CHIP_RS600) {
 291                 rdev->mc_rreg = &rs600_mc_rreg;
 292                 rdev->mc_wreg = &rs600_mc_wreg;
 293         }
 294         if (rdev->family >= CHIP_R600) {
 295                 rdev->pciep_rreg = &r600_pciep_rreg;
 296                 rdev->pciep_wreg = &r600_pciep_wreg;
 297         }
 298 }
 299
 300
 301 /*
 302  * ASIC
 303  */
 304 int radeon_asic_init(struct radeon_device *rdev)
 305 {
 306         radeon_register_accessor_init(rdev);
 307         switch (rdev->family) {
 308         case CHIP_R100:
 309         case CHIP_RV100:
 310         case CHIP_RS100:
 311         case CHIP_RV200:
 312         case CHIP_RS200:
 313         case CHIP_R200:
 314         case CHIP_RV250:
 315         case CHIP_RS300:
 316         case CHIP_RV280:
 317                 rdev->asic = &r100_asic;
 318                 break;
 319         case CHIP_R300:
 320         case CHIP_R350:
 321         case CHIP_RV350:
 322         case CHIP_RV380:
 323                 rdev->asic = &r300_asic;
 324                 if (rdev->flags & RADEON_IS_PCIE) {
 325                         rdev->asic->gart_init = &rv370_pcie_gart_init;
 326                         rdev->asic->gart_fini = &rv370_pcie_gart_fini;
 327                         rdev->asic->gart_enable = &rv370_pcie_gart_enable;
 328                         rdev->asic->gart_disable = &rv370_pcie_gart_disable;
 329                         rdev->asic->gart_tlb_flush = &rv370_pcie_gart_tlb_flush;
 330                         rdev->asic->gart_set_page = &rv370_pcie_gart_set_page;
 331                 }
 332                 break;
 333         case CHIP_R420:
 334         case CHIP_R423:
 335         case CHIP_RV410:
 336                 rdev->asic = &r420_asic;
 337                 break;
 338         case CHIP_RS400:
 339         case CHIP_RS480:
 340                 rdev->asic = &rs400_asic;
 341                 break;
 342         case CHIP_RS600:
 343                 rdev->asic = &rs600_asic;
 344                 break;
 345         case CHIP_RS690:
 346         case CHIP_RS740:
 347                 rdev->asic = &rs690_asic;
 348                 break;
 349         case CHIP_RV515:
 350                 rdev->asic = &rv515_asic;
 351                 break;
 352         case CHIP_R520:
 353         case CHIP_RV530:
 354         case CHIP_RV560:
 355         case CHIP_RV570:
 356         case CHIP_R580:
 357                 rdev->asic = &r520_asic;
 358                 break;
 359         case CHIP_R600:
 360         case CHIP_RV610:
 361         case CHIP_RV630:
 362         case CHIP_RV620:
 363         case CHIP_RV635:
 364         case CHIP_RV670:
 365         case CHIP_RS780:
 366         case CHIP_RS880:
 367                 rdev->asic = &r600_asic;
 368                 break;
 369         case CHIP_RV770:
 370         case CHIP_RV730:
 371         case CHIP_RV710:
 372         case CHIP_RV740:
 373                 rdev->asic = &rv770_asic;
 374                 break;
 375         default:
 376                 /* FIXME: not supported yet */
 377                 return -EINVAL;
 378         }
 379         return 0;
 380 }
 381
 382
 383 /*
 384  * Wrapper around modesetting bits.
 385  */
 386 int radeon_clocks_init(struct radeon_device *rdev)
 387 {
 388         int r;
 389
 390         r = radeon_static_clocks_init(rdev->ddev);
 391         if (r) {
 392                 return r;
 393         }
 394         DRM_INFO("Clocks initialized !\n");
 395         return 0;
 396 }
 397
 398 void radeon_clocks_fini(struct radeon_device *rdev)
 399 {
 400 }
 401
 402 /* ATOM accessor methods */
 403 static uint32_t cail_pll_read(struct card_info *info, uint32_t reg)
 404 {
 405         struct radeon_device *rdev = info->dev->dev_private;
 406         uint32_t r;
 407
 408         r = rdev->pll_rreg(rdev, reg);
 409         return r;
 410 }
 411
 412 static void cail_pll_write(struct card_info *info, uint32_t reg, uint32_t val)
 413 {
 414         struct radeon_device *rdev = info->dev->dev_private;
 415
 416         rdev->pll_wreg(rdev, reg, val);
 417 }
 418
 419 static uint32_t cail_mc_read(struct card_info *info, uint32_t reg)
 420 {
 421         struct radeon_device *rdev = info->dev->dev_private;
 422         uint32_t r;
 423
 424         r = rdev->mc_rreg(rdev, reg);
 425         return r;
 426 }
 427
 428 static void cail_mc_write(struct card_info *info, uint32_t reg, uint32_t val)
 429 {
 430         struct radeon_device *rdev = info->dev->dev_private;
 431
 432         rdev->mc_wreg(rdev, reg, val);
 433 }
 434
 435 static void cail_reg_write(struct card_info *info, uint32_t reg, uint32_t val)
 436 {
 437         struct radeon_device *rdev = info->dev->dev_private;
 438
 439         WREG32(reg*4, val);
 440 }
 441
 442 static uint32_t cail_reg_read(struct card_info *info, uint32_t reg)
 443 {
 444         struct radeon_device *rdev = info->dev->dev_private;
 445         uint32_t r;
 446
 447         r = RREG32(reg*4);
 448         return r;
 449 }
 450
 451 static struct card_info atom_card_info = {
 452         .dev = NULL,
 453         .reg_read = cail_reg_read,
 454         .reg_write = cail_reg_write,
 455         .mc_read = cail_mc_read,
 456         .mc_write = cail_mc_write,
 457         .pll_read = cail_pll_read,
 458         .pll_write = cail_pll_write,
 459 };
 460
 461 int radeon_atombios_init(struct radeon_device *rdev)
 462 {
 463         atom_card_info.dev = rdev->ddev;
 464         rdev->mode_info.atom_context = atom_parse(&atom_card_info, rdev->bios);
 465         radeon_atom_initialize_bios_scratch_regs(rdev->ddev);
 466         return 0;
 467 }
 468
 469 void radeon_atombios_fini(struct radeon_device *rdev)
 470 {
 471         kfree(rdev->mode_info.atom_context);
 472 }
 473
 474 int radeon_combios_init(struct radeon_device *rdev)
 475 {
 476         radeon_combios_initialize_bios_scratch_regs(rdev->ddev);
 477         return 0;
 478 }
 479
 480 void radeon_combios_fini(struct radeon_device *rdev)
 481 {
 482 }
 483
 484 /* if we get transitioned to only one device, tak VGA back */
 485 static unsigned int radeon_vga_set_decode(void *cookie, bool state)
 486 {
 487         struct radeon_device *rdev = cookie;
 488
 489         radeon_vga_set_state(rdev, state);
 490         if (state)
 491                 return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
 492                        VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
 493         else
 494                 return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
 495 }
 496 /*
 497  * Radeon device.
 498  */
 499 int radeon_device_init(struct radeon_device *rdev,
 500                        struct drm_device *ddev,
 501                        struct pci_dev *pdev,
 502                        uint32_t flags)
 503 {
 504         int r;
 505         int dma_bits;
 506
 507         DRM_INFO("radeon: Initializing kernel modesetting.\n");
 508         rdev->shutdown = false;
 509         rdev->dev = &pdev->dev;
 510         rdev->ddev = ddev;
 511         rdev->pdev = pdev;
 512         rdev->flags = flags;
 513         rdev->family = flags & RADEON_FAMILY_MASK;
 514         rdev->is_atom_bios = false;
 515         rdev->usec_timeout = RADEON_MAX_USEC_TIMEOUT;
 516         rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
 517         rdev->gpu_lockup = false;
 518         rdev->accel_working = false;
 519         /* mutex initialization are all done here so we
 520          * can recall function without having locking issues */
 521         mutex_init(&rdev->cs_mutex);
 522         mutex_init(&rdev->ib_pool.mutex);
 523         mutex_init(&rdev->cp.mutex);
 524         rwlock_init(&rdev->fence_drv.lock);
 525         INIT_LIST_HEAD(&rdev->gem.objects);
 526
 527         /* Set asic functions */
 528         r = radeon_asic_init(rdev);
 529         if (r) {
 530                 return r;
 531         }
 532
 533         if (radeon_agpmode == -1) {
 534                 rdev->flags &= ~RADEON_IS_AGP;
 535                 if (rdev->family >= CHIP_RV515 ||
 536                     rdev->family == CHIP_RV380 ||
 537                     rdev->family == CHIP_RV410 ||
 538                     rdev->family == CHIP_R423) {
 539                         DRM_INFO("Forcing AGP to PCIE mode\n");
 540                         rdev->flags |= RADEON_IS_PCIE;
 541                         rdev->asic->gart_init = &rv370_pcie_gart_init;
 542                         rdev->asic->gart_fini = &rv370_pcie_gart_fini;
 543                         rdev->asic->gart_enable = &rv370_pcie_gart_enable;
 544                         rdev->asic->gart_disable = &rv370_pcie_gart_disable;
 545                         rdev->asic->gart_tlb_flush = &rv370_pcie_gart_tlb_flush;
 546                         rdev->asic->gart_set_page = &rv370_pcie_gart_set_page;
 547                 } else {
 548                         DRM_INFO("Forcing AGP to PCI mode\n");
 549                         rdev->flags |= RADEON_IS_PCI;
 550                         rdev->asic->gart_init = &r100_pci_gart_init;
 551                         rdev->asic->gart_fini = &r100_pci_gart_fini;
 552                         rdev->asic->gart_enable = &r100_pci_gart_enable;
 553                         rdev->asic->gart_disable = &r100_pci_gart_disable;
 554                         rdev->asic->gart_tlb_flush = &r100_pci_gart_tlb_flush;
 555                         rdev->asic->gart_set_page = &r100_pci_gart_set_page;
 556                 }
 557         }
 558
 559         /* set DMA mask + need_dma32 flags.
 560          * PCIE - can handle 40-bits.
 561          * IGP - can handle 40-bits (in theory)
 562          * AGP - generally dma32 is safest
 563          * PCI - only dma32
 564          */
 565         rdev->need_dma32 = false;
 566         if (rdev->flags & RADEON_IS_AGP)
 567                 rdev->need_dma32 = true;
 568         if (rdev->flags & RADEON_IS_PCI)
 569                 rdev->need_dma32 = true;
 570
 571         dma_bits = rdev->need_dma32 ? 32 : 40;
 572         r = pci_set_dma_mask(rdev->pdev, DMA_BIT_MASK(dma_bits));
 573         if (r) {
 574                 printk(KERN_WARNING "radeon: No suitable DMA available.\n");
 575         }
 576
 577         /* Registers mapping */
 578         /* TODO: block userspace mapping of io register */
 579         rdev->rmmio_base = drm_get_resource_start(rdev->ddev, 2);
 580         rdev->rmmio_size = drm_get_resource_len(rdev->ddev, 2);
 581         rdev->rmmio = ioremap(rdev->rmmio_base, rdev->rmmio_size);
 582         if (rdev->rmmio == NULL) {
 583                 return -ENOMEM;
 584         }
 585         DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)rdev->rmmio_base);
 586         DRM_INFO("register mmio size: %u\n", (unsigned)rdev->rmmio_size);
 587
 588         rdev->new_init_path = false;
 589         r = radeon_init(rdev);
 590         if (r) {
 591                 return r;
 592         }
 593
 594         /* if we have > 1 VGA cards, then disable the radeon VGA resources */
 595         r = vga_client_register(rdev->pdev, rdev, NULL, radeon_vga_set_decode);
 596         if (r) {
 597                 return -EINVAL;
 598         }
 599
 600         if (!rdev->new_init_path) {
 601                 /* Setup errata flags */
 602                 radeon_errata(rdev);
 603                 /* Initialize scratch registers */
 604                 radeon_scratch_init(rdev);
 605                 /* Initialize surface registers */
 606                 radeon_surface_init(rdev);
 607
 608                 /* BIOS*/
 609                 if (!radeon_get_bios(rdev)) {
 610                         if (ASIC_IS_AVIVO(rdev))
 611                                 return -EINVAL;
 612                 }
 613                 if (rdev->is_atom_bios) {
 614                         r = radeon_atombios_init(rdev);
 615                         if (r) {
 616                                 return r;
 617                         }
 618                 } else {
 619                         r = radeon_combios_init(rdev);
 620                         if (r) {
 621                                 return r;
 622                         }
 623                 }
 624                 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 625                 if (radeon_gpu_reset(rdev)) {
 626                         /* FIXME: what do we want to do here ? */
 627                 }
 628                 /* check if cards are posted or not */
 629                 if (!radeon_card_posted(rdev) && rdev->bios) {
 630                         DRM_INFO("GPU not posted. posting now...\n");
 631                         if (rdev->is_atom_bios) {
 632                                 atom_asic_init(rdev->mode_info.atom_context);
 633                         } else {
 634                                 radeon_combios_asic_init(rdev->ddev);
 635                         }
 636                 }
 637                 /* Get clock & vram information */
 638                 radeon_get_clock_info(rdev->ddev);
 639                 radeon_vram_info(rdev);
 640                 /* Initialize clocks */
 641                 r = radeon_clocks_init(rdev);
 642                 if (r) {
 643                         return r;
 644                 }
 645
 646                 /* Initialize memory controller (also test AGP) */
 647                 r = radeon_mc_init(rdev);
 648                 if (r) {
 649                         return r;
 650                 }
 651                 /* Fence driver */
 652                 r = radeon_fence_driver_init(rdev);
 653                 if (r) {
 654                         return r;
 655                 }
 656                 r = radeon_irq_kms_init(rdev);
 657                 if (r) {
 658                         return r;
 659                 }
 660                 /* Memory manager */
 661                 r = radeon_object_init(rdev);
 662                 if (r) {
 663                         return r;
 664                 }
 665                 r = radeon_gpu_gart_init(rdev);
 666                 if (r)
 667                         return r;
 668                 /* Initialize GART (initialize after TTM so we can allocate
 669                  * memory through TTM but finalize after TTM) */
 670                 r = radeon_gart_enable(rdev);
 671                 if (r)
 672                         return 0;
 673                         r = radeon_gem_init(rdev);
 674                 if (r)
 675                         return 0;
 676
 677                 /* 1M ring buffer */
 678                 r = radeon_cp_init(rdev, 1024 * 1024);
 679                 if (r)
 680                         return 0;
 681                 r = radeon_wb_init(rdev);
 682                 if (r)
 683                         DRM_ERROR("radeon: failled initializing WB (%d).\n", r);
 684                 r = radeon_ib_pool_init(rdev);
 685                 if (r)
 686                         return 0;
 687                 r = radeon_ib_test(rdev);
 688                 if (r)
 689                         return 0;
 690                 rdev->accel_working = true;
 691         }
 692         DRM_INFO("radeon: kernel modesetting successfully initialized.\n");
 693         if (radeon_testing) {
 694                 radeon_test_moves(rdev);
 695         }
 696         if (radeon_benchmarking) {
 697                 radeon_benchmark(rdev);
 698         }
 699         return 0;
 700 }
 701
 702 void radeon_device_fini(struct radeon_device *rdev)
 703 {
 704         DRM_INFO("radeon: finishing device.\n");
 705         rdev->shutdown = true;
 706         /* Order matter so becarefull if you rearrange anythings */
 707         if (!rdev->new_init_path) {
 708                 radeon_ib_pool_fini(rdev);
 709                 radeon_cp_fini(rdev);
 710                 radeon_wb_fini(rdev);
 711                 radeon_gpu_gart_fini(rdev);
 712                 radeon_gem_fini(rdev);
 713                 radeon_mc_fini(rdev);
 714 #if __OS_HAS_AGP
 715                 radeon_agp_fini(rdev);
 716 #endif
 717                 radeon_irq_kms_fini(rdev);
 718                 vga_client_register(rdev->pdev, NULL, NULL, NULL);
 719                 radeon_fence_driver_fini(rdev);
 720                 radeon_clocks_fini(rdev);
 721                 radeon_object_fini(rdev);
 722                 if (rdev->is_atom_bios) {
 723                         radeon_atombios_fini(rdev);
 724                 } else {
 725                         radeon_combios_fini(rdev);
 726                 }
 727                 kfree(rdev->bios);
 728                 rdev->bios = NULL;
 729         } else {
 730                 radeon_fini(rdev);
 731         }
 732         iounmap(rdev->rmmio);
 733         rdev->rmmio = NULL;
 734 }
 735
 736
 737 /*
 738  * Suspend & resume.
 739  */
 740 int radeon_suspend_kms(struct drm_device *dev, pm_message_t state)
 741 {
 742         struct radeon_device *rdev = dev->dev_private;
 743         struct drm_crtc *crtc;
 744
 745         if (dev == NULL || rdev == NULL) {
 746                 return -ENODEV;
 747         }
 748         if (state.event == PM_EVENT_PRETHAW) {
 749                 return 0;
 750         }
 751         /* unpin the front buffers */
 752         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 753                 struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->fb);
 754                 struct radeon_object *robj;
 755
 756                 if (rfb == NULL || rfb->obj == NULL) {
 757                         continue;
 758                 }
 759                 robj = rfb->obj->driver_private;
 760                 if (robj != rdev->fbdev_robj) {
 761                         radeon_object_unpin(robj);
 762                 }
 763         }
 764         /* evict vram memory */
 765         radeon_object_evict_vram(rdev);
 766         /* wait for gpu to finish processing current batch */
 767         radeon_fence_wait_last(rdev);
 768
 769         radeon_save_bios_scratch_regs(rdev);
 770
 771         if (!rdev->new_init_path) {
 772                 radeon_cp_disable(rdev);
 773                 radeon_gart_disable(rdev);
 774                 rdev->irq.sw_int = false;
 775                 radeon_irq_set(rdev);
 776         } else {
 777                 radeon_suspend(rdev);
 778         }
 779         /* evict remaining vram memory */
 780         radeon_object_evict_vram(rdev);
 781
 782         pci_save_state(dev->pdev);
 783         if (state.event == PM_EVENT_SUSPEND) {
 784                 /* Shut down the device */
 785                 pci_disable_device(dev->pdev);
 786                 pci_set_power_state(dev->pdev, PCI_D3hot);
 787         }
 788         acquire_console_sem();
 789         fb_set_suspend(rdev->fbdev_info, 1);
 790         release_console_sem();
 791         return 0;
 792 }
 793
 794 int radeon_resume_kms(struct drm_device *dev)
 795 {
 796         struct radeon_device *rdev = dev->dev_private;
 797         int r;
 798
 799         acquire_console_sem();
 800         pci_set_power_state(dev->pdev, PCI_D0);
 801         pci_restore_state(dev->pdev);
 802         if (pci_enable_device(dev->pdev)) {
 803                 release_console_sem();
 804                 return -1;
 805         }
 806         pci_set_master(dev->pdev);
 807         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 808         if (!rdev->new_init_path) {
 809                 if (radeon_gpu_reset(rdev)) {
 810                         /* FIXME: what do we want to do here ? */
 811                 }
 812                 /* post card */
 813                 if (rdev->is_atom_bios) {
 814                         atom_asic_init(rdev->mode_info.atom_context);
 815                 } else {
 816                         radeon_combios_asic_init(rdev->ddev);
 817                 }
 818                 /* Initialize clocks */
 819                 r = radeon_clocks_init(rdev);
 820                 if (r) {
 821                         release_console_sem();
 822                         return r;
 823                 }
 824                 /* Enable IRQ */
 825                 rdev->irq.sw_int = true;
 826                 radeon_irq_set(rdev);
 827                 /* Initialize GPU Memory Controller */
 828                 r = radeon_mc_init(rdev);
 829                 if (r) {
 830                         goto out;
 831                 }
 832                 r = radeon_gart_enable(rdev);
 833                 if (r) {
 834                         goto out;
 835                 }
 836                 r = radeon_cp_init(rdev, rdev->cp.ring_size);
 837                 if (r) {
 838                         goto out;
 839                 }
 840         } else {
 841                 radeon_resume(rdev);
 842         }
 843 out:
 844         radeon_restore_bios_scratch_regs(rdev);
 845         fb_set_suspend(rdev->fbdev_info, 0);
 846         release_console_sem();
 847
 848         /* blat the mode back in */
 849         drm_helper_resume_force_mode(dev);
 850         return 0;
 851 }
 852
 853
 854 /*
 855  * Debugfs
 856  */
 857 struct radeon_debugfs {
 858         struct drm_info_list    *files;
 859         unsigned                num_files;
 860 };
 861 static struct radeon_debugfs _radeon_debugfs[RADEON_DEBUGFS_MAX_NUM_FILES];
 862 static unsigned _radeon_debugfs_count = 0;
 863
 864 int radeon_debugfs_add_files(struct radeon_device *rdev,
 865                              struct drm_info_list *files,
 866                              unsigned nfiles)
 867 {
 868         unsigned i;
 869
 870         for (i = 0; i < _radeon_debugfs_count; i++) {
 871                 if (_radeon_debugfs[i].files == files) {
 872                         /* Already registered */
 873                         return 0;
 874                 }
 875         }
 876         if ((_radeon_debugfs_count + nfiles) > RADEON_DEBUGFS_MAX_NUM_FILES) {
 877                 DRM_ERROR("Reached maximum number of debugfs files.\n");
 878                 DRM_ERROR("Report so we increase RADEON_DEBUGFS_MAX_NUM_FILES.\n");
 879                 return -EINVAL;
 880         }
 881         _radeon_debugfs[_radeon_debugfs_count].files = files;
 882         _radeon_debugfs[_radeon_debugfs_count].num_files = nfiles;
 883         _radeon_debugfs_count++;
 884 #if defined(CONFIG_DEBUG_FS)
 885         drm_debugfs_create_files(files, nfiles,
 886                                  rdev->ddev->control->debugfs_root,
 887                                  rdev->ddev->control);
 888         drm_debugfs_create_files(files, nfiles,
 889                                  rdev->ddev->primary->debugfs_root,
 890                                  rdev->ddev->primary);
 891 #endif
 892         return 0;
 893 }
 894
 895 #if defined(CONFIG_DEBUG_FS)
 896 int radeon_debugfs_init(struct drm_minor *minor)
 897 {
 898         return 0;
 899 }
 900
 901 void radeon_debugfs_cleanup(struct drm_minor *minor)
 902 {
 903         unsigned i;
 904
 905         for (i = 0; i < _radeon_debugfs_count; i++) {
 906                 drm_debugfs_remove_files(_radeon_debugfs[i].files,
 907                                          _radeon_debugfs[i].num_files, minor);
 908         }
 909 }
 910 #endif