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  * GPU scratch registers helpers function.
  39  */
  40 static void radeon_scratch_init(struct radeon_device *rdev)
  41 {
  42         int i;
  43
  44         /* FIXME: check this out */
  45         if (rdev->family < CHIP_R300) {
  46                 rdev->scratch.num_reg = 5;
  47         } else {
  48                 rdev->scratch.num_reg = 7;
  49         }
  50         for (i = 0; i < rdev->scratch.num_reg; i++) {
  51                 rdev->scratch.free[i] = true;
  52                 rdev->scratch.reg[i] = RADEON_SCRATCH_REG0 + (i * 4);
  53         }
  54 }
  55
  56 int radeon_scratch_get(struct radeon_device *rdev, uint32_t *reg)
  57 {
  58         int i;
  59
  60         for (i = 0; i < rdev->scratch.num_reg; i++) {
  61                 if (rdev->scratch.free[i]) {
  62                         rdev->scratch.free[i] = false;
  63                         *reg = rdev->scratch.reg[i];
  64                         return 0;
  65                 }
  66         }
  67         return -EINVAL;
  68 }
  69
  70 void radeon_scratch_free(struct radeon_device *rdev, uint32_t reg)
  71 {
  72         int i;
  73
  74         for (i = 0; i < rdev->scratch.num_reg; i++) {
  75                 if (rdev->scratch.reg[i] == reg) {
  76                         rdev->scratch.free[i] = true;
  77                         return;
  78                 }
  79         }
  80 }
  81
  82 /*
  83  * MC common functions
  84  */
  85 int radeon_mc_setup(struct radeon_device *rdev)
  86 {
  87         uint32_t tmp;
  88
  89         /* Some chips have an "issue" with the memory controller, the
  90          * location must be aligned to the size. We just align it down,
  91          * too bad if we walk over the top of system memory, we don't
  92          * use DMA without a remapped anyway.
  93          * Affected chips are rv280, all r3xx, and all r4xx, but not IGP
  94          */
  95         /* FGLRX seems to setup like this, VRAM a 0, then GART.
  96          */
  97         /*
  98          * Note: from R6xx the address space is 40bits but here we only
  99          * use 32bits (still have to see a card which would exhaust 4G
 100          * address space).
 101          */
 102         if (rdev->mc.vram_location != 0xFFFFFFFFUL) {
 103                 /* vram location was already setup try to put gtt after
 104                  * if it fits */
 105                 tmp = rdev->mc.vram_location + rdev->mc.vram_size;
 106                 tmp = (tmp + rdev->mc.gtt_size - 1) & ~(rdev->mc.gtt_size - 1);
 107                 if ((0xFFFFFFFFUL - tmp) >= rdev->mc.gtt_size) {
 108                         rdev->mc.gtt_location = tmp;
 109                 } else {
 110                         if (rdev->mc.gtt_size >= rdev->mc.vram_location) {
 111                                 printk(KERN_ERR "[drm] GTT too big to fit "
 112                                        "before or after vram location.\n");
 113                                 return -EINVAL;
 114                         }
 115                         rdev->mc.gtt_location = 0;
 116                 }
 117         } else if (rdev->mc.gtt_location != 0xFFFFFFFFUL) {
 118                 /* gtt location was already setup try to put vram before
 119                  * if it fits */
 120                 if (rdev->mc.vram_size < rdev->mc.gtt_location) {
 121                         rdev->mc.vram_location = 0;
 122                 } else {
 123                         tmp = rdev->mc.gtt_location + rdev->mc.gtt_size;
 124                         tmp += (rdev->mc.vram_size - 1);
 125                         tmp &= ~(rdev->mc.vram_size - 1);
 126                         if ((0xFFFFFFFFUL - tmp) >= rdev->mc.vram_size) {
 127                                 rdev->mc.vram_location = tmp;
 128                         } else {
 129                                 printk(KERN_ERR "[drm] vram too big to fit "
 130                                        "before or after GTT location.\n");
 131                                 return -EINVAL;
 132                         }
 133                 }
 134         } else {
 135                 rdev->mc.vram_location = 0;
 136                 rdev->mc.gtt_location = rdev->mc.vram_size;
 137         }
 138         DRM_INFO("radeon: VRAM %uM\n", rdev->mc.vram_size >> 20);
 139         DRM_INFO("radeon: VRAM from 0x%08X to 0x%08X\n",
 140                  rdev->mc.vram_location,
 141                  rdev->mc.vram_location + rdev->mc.vram_size - 1);
 142         DRM_INFO("radeon: GTT %uM\n", rdev->mc.gtt_size >> 20);
 143         DRM_INFO("radeon: GTT from 0x%08X to 0x%08X\n",
 144                  rdev->mc.gtt_location,
 145                  rdev->mc.gtt_location + rdev->mc.gtt_size - 1);
 146         return 0;
 147 }
 148
 149
 150 /*
 151  * GPU helpers function.
 152  */
 153 static bool radeon_card_posted(struct radeon_device *rdev)
 154 {
 155         uint32_t reg;
 156
 157         /* first check CRTCs */
 158         if (ASIC_IS_AVIVO(rdev)) {
 159                 reg = RREG32(AVIVO_D1CRTC_CONTROL) |
 160                       RREG32(AVIVO_D2CRTC_CONTROL);
 161                 if (reg & AVIVO_CRTC_EN) {
 162                         return true;
 163                 }
 164         } else {
 165                 reg = RREG32(RADEON_CRTC_GEN_CNTL) |
 166                       RREG32(RADEON_CRTC2_GEN_CNTL);
 167                 if (reg & RADEON_CRTC_EN) {
 168                         return true;
 169                 }
 170         }
 171
 172         /* then check MEM_SIZE, in case the crtcs are off */
 173         if (rdev->family >= CHIP_R600)
 174                 reg = RREG32(R600_CONFIG_MEMSIZE);
 175         else
 176                 reg = RREG32(RADEON_CONFIG_MEMSIZE);
 177
 178         if (reg)
 179                 return true;
 180
 181         return false;
 182
 183 }
 184
 185
 186 /*
 187  * Registers accessors functions.
 188  */
 189 uint32_t radeon_invalid_rreg(struct radeon_device *rdev, uint32_t reg)
 190 {
 191         DRM_ERROR("Invalid callback to read register 0x%04X\n", reg);
 192         BUG_ON(1);
 193         return 0;
 194 }
 195
 196 void radeon_invalid_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
 197 {
 198         DRM_ERROR("Invalid callback to write register 0x%04X with 0x%08X\n",
 199                   reg, v);
 200         BUG_ON(1);
 201 }
 202
 203 void radeon_register_accessor_init(struct radeon_device *rdev)
 204 {
 205         rdev->mm_rreg = &r100_mm_rreg;
 206         rdev->mm_wreg = &r100_mm_wreg;
 207         rdev->mc_rreg = &radeon_invalid_rreg;
 208         rdev->mc_wreg = &radeon_invalid_wreg;
 209         rdev->pll_rreg = &radeon_invalid_rreg;
 210         rdev->pll_wreg = &radeon_invalid_wreg;
 211         rdev->pcie_rreg = &radeon_invalid_rreg;
 212         rdev->pcie_wreg = &radeon_invalid_wreg;
 213         rdev->pciep_rreg = &radeon_invalid_rreg;
 214         rdev->pciep_wreg = &radeon_invalid_wreg;
 215
 216         /* Don't change order as we are overridding accessor. */
 217         if (rdev->family < CHIP_RV515) {
 218                 rdev->pcie_rreg = &rv370_pcie_rreg;
 219                 rdev->pcie_wreg = &rv370_pcie_wreg;
 220         }
 221         if (rdev->family >= CHIP_RV515) {
 222                 rdev->pcie_rreg = &rv515_pcie_rreg;
 223                 rdev->pcie_wreg = &rv515_pcie_wreg;
 224         }
 225         /* FIXME: not sure here */
 226         if (rdev->family <= CHIP_R580) {
 227                 rdev->pll_rreg = &r100_pll_rreg;
 228                 rdev->pll_wreg = &r100_pll_wreg;
 229         }
 230         if (rdev->family >= CHIP_RV515) {
 231                 rdev->mc_rreg = &rv515_mc_rreg;
 232                 rdev->mc_wreg = &rv515_mc_wreg;
 233         }
 234         if (rdev->family == CHIP_RS400 || rdev->family == CHIP_RS480) {
 235                 rdev->mc_rreg = &rs400_mc_rreg;
 236                 rdev->mc_wreg = &rs400_mc_wreg;
 237         }
 238         if (rdev->family == CHIP_RS690 || rdev->family == CHIP_RS740) {
 239                 rdev->mc_rreg = &rs690_mc_rreg;
 240                 rdev->mc_wreg = &rs690_mc_wreg;
 241         }
 242         if (rdev->family == CHIP_RS600) {
 243                 rdev->mc_rreg = &rs600_mc_rreg;
 244                 rdev->mc_wreg = &rs600_mc_wreg;
 245         }
 246         if (rdev->family >= CHIP_R600) {
 247                 rdev->pciep_rreg = &r600_pciep_rreg;
 248                 rdev->pciep_wreg = &r600_pciep_wreg;
 249         }
 250 }
 251
 252
 253 /*
 254  * ASIC
 255  */
 256 int radeon_asic_init(struct radeon_device *rdev)
 257 {
 258         radeon_register_accessor_init(rdev);
 259         switch (rdev->family) {
 260         case CHIP_R100:
 261         case CHIP_RV100:
 262         case CHIP_RS100:
 263         case CHIP_RV200:
 264         case CHIP_RS200:
 265         case CHIP_R200:
 266         case CHIP_RV250:
 267         case CHIP_RS300:
 268         case CHIP_RV280:
 269                 rdev->asic = &r100_asic;
 270                 break;
 271         case CHIP_R300:
 272         case CHIP_R350:
 273         case CHIP_RV350:
 274         case CHIP_RV380:
 275                 rdev->asic = &r300_asic;
 276                 break;
 277         case CHIP_R420:
 278         case CHIP_R423:
 279         case CHIP_RV410:
 280                 rdev->asic = &r420_asic;
 281                 break;
 282         case CHIP_RS400:
 283         case CHIP_RS480:
 284                 rdev->asic = &rs400_asic;
 285                 break;
 286         case CHIP_RS600:
 287                 rdev->asic = &rs600_asic;
 288                 break;
 289         case CHIP_RS690:
 290         case CHIP_RS740:
 291                 rdev->asic = &rs690_asic;
 292                 break;
 293         case CHIP_RV515:
 294                 rdev->asic = &rv515_asic;
 295                 break;
 296         case CHIP_R520:
 297         case CHIP_RV530:
 298         case CHIP_RV560:
 299         case CHIP_RV570:
 300         case CHIP_R580:
 301                 rdev->asic = &r520_asic;
 302                 break;
 303         case CHIP_R600:
 304         case CHIP_RV610:
 305         case CHIP_RV630:
 306         case CHIP_RV620:
 307         case CHIP_RV635:
 308         case CHIP_RV670:
 309         case CHIP_RS780:
 310         case CHIP_RV770:
 311         case CHIP_RV730:
 312         case CHIP_RV710:
 313         default:
 314                 /* FIXME: not supported yet */
 315                 return -EINVAL;
 316         }
 317         return 0;
 318 }
 319
 320
 321 /*
 322  * Wrapper around modesetting bits.
 323  */
 324 int radeon_clocks_init(struct radeon_device *rdev)
 325 {
 326         int r;
 327
 328         radeon_get_clock_info(rdev->ddev);
 329         r = radeon_static_clocks_init(rdev->ddev);
 330         if (r) {
 331                 return r;
 332         }
 333         DRM_INFO("Clocks initialized !\n");
 334         return 0;
 335 }
 336
 337 void radeon_clocks_fini(struct radeon_device *rdev)
 338 {
 339 }
 340
 341 /* ATOM accessor methods */
 342 static uint32_t cail_pll_read(struct card_info *info, uint32_t reg)
 343 {
 344         struct radeon_device *rdev = info->dev->dev_private;
 345         uint32_t r;
 346
 347         r = rdev->pll_rreg(rdev, reg);
 348         return r;
 349 }
 350
 351 static void cail_pll_write(struct card_info *info, uint32_t reg, uint32_t val)
 352 {
 353         struct radeon_device *rdev = info->dev->dev_private;
 354
 355         rdev->pll_wreg(rdev, reg, val);
 356 }
 357
 358 static uint32_t cail_mc_read(struct card_info *info, uint32_t reg)
 359 {
 360         struct radeon_device *rdev = info->dev->dev_private;
 361         uint32_t r;
 362
 363         r = rdev->mc_rreg(rdev, reg);
 364         return r;
 365 }
 366
 367 static void cail_mc_write(struct card_info *info, uint32_t reg, uint32_t val)
 368 {
 369         struct radeon_device *rdev = info->dev->dev_private;
 370
 371         rdev->mc_wreg(rdev, reg, val);
 372 }
 373
 374 static void cail_reg_write(struct card_info *info, uint32_t reg, uint32_t val)
 375 {
 376         struct radeon_device *rdev = info->dev->dev_private;
 377
 378         WREG32(reg*4, val);
 379 }
 380
 381 static uint32_t cail_reg_read(struct card_info *info, uint32_t reg)
 382 {
 383         struct radeon_device *rdev = info->dev->dev_private;
 384         uint32_t r;
 385
 386         r = RREG32(reg*4);
 387         return r;
 388 }
 389
 390 static struct card_info atom_card_info = {
 391         .dev = NULL,
 392         .reg_read = cail_reg_read,
 393         .reg_write = cail_reg_write,
 394         .mc_read = cail_mc_read,
 395         .mc_write = cail_mc_write,
 396         .pll_read = cail_pll_read,
 397         .pll_write = cail_pll_write,
 398 };
 399
 400 int radeon_atombios_init(struct radeon_device *rdev)
 401 {
 402         atom_card_info.dev = rdev->ddev;
 403         rdev->mode_info.atom_context = atom_parse(&atom_card_info, rdev->bios);
 404         radeon_atom_initialize_bios_scratch_regs(rdev->ddev);
 405         return 0;
 406 }
 407
 408 void radeon_atombios_fini(struct radeon_device *rdev)
 409 {
 410         kfree(rdev->mode_info.atom_context);
 411 }
 412
 413 int radeon_combios_init(struct radeon_device *rdev)
 414 {
 415         radeon_combios_initialize_bios_scratch_regs(rdev->ddev);
 416         return 0;
 417 }
 418
 419 void radeon_combios_fini(struct radeon_device *rdev)
 420 {
 421 }
 422
 423 int radeon_modeset_init(struct radeon_device *rdev);
 424 void radeon_modeset_fini(struct radeon_device *rdev);
 425
 426
 427 /*
 428  * Radeon device.
 429  */
 430 int radeon_device_init(struct radeon_device *rdev,
 431                        struct drm_device *ddev,
 432                        struct pci_dev *pdev,
 433                        uint32_t flags)
 434 {
 435         int r, ret;
 436
 437         DRM_INFO("radeon: Initializing kernel modesetting.\n");
 438         rdev->shutdown = false;
 439         rdev->ddev = ddev;
 440         rdev->pdev = pdev;
 441         rdev->flags = flags;
 442         rdev->family = flags & RADEON_FAMILY_MASK;
 443         rdev->is_atom_bios = false;
 444         rdev->usec_timeout = RADEON_MAX_USEC_TIMEOUT;
 445         rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
 446         rdev->gpu_lockup = false;
 447         /* mutex initialization are all done here so we
 448          * can recall function without having locking issues */
 449         mutex_init(&rdev->cs_mutex);
 450         mutex_init(&rdev->ib_pool.mutex);
 451         mutex_init(&rdev->cp.mutex);
 452         rwlock_init(&rdev->fence_drv.lock);
 453
 454         if (radeon_agpmode == -1) {
 455                 rdev->flags &= ~RADEON_IS_AGP;
 456                 if (rdev->family > CHIP_RV515 ||
 457                     rdev->family == CHIP_RV380 ||
 458                     rdev->family == CHIP_RV410 ||
 459                     rdev->family == CHIP_R423) {
 460                         DRM_INFO("Forcing AGP to PCIE mode\n");
 461                         rdev->flags |= RADEON_IS_PCIE;
 462                 } else {
 463                         DRM_INFO("Forcing AGP to PCI mode\n");
 464                         rdev->flags |= RADEON_IS_PCI;
 465                 }
 466         }
 467
 468         /* Set asic functions */
 469         r = radeon_asic_init(rdev);
 470         if (r) {
 471                 return r;
 472         }
 473         r = radeon_init(rdev);
 474         if (r) {
 475                 return r;
 476         }
 477
 478         /* Report DMA addressing limitation */
 479         r = pci_set_dma_mask(rdev->pdev, DMA_BIT_MASK(32));
 480         if (r) {
 481                 printk(KERN_WARNING "radeon: No suitable DMA available.\n");
 482         }
 483
 484         /* Registers mapping */
 485         /* TODO: block userspace mapping of io register */
 486         rdev->rmmio_base = drm_get_resource_start(rdev->ddev, 2);
 487         rdev->rmmio_size = drm_get_resource_len(rdev->ddev, 2);
 488         rdev->rmmio = ioremap(rdev->rmmio_base, rdev->rmmio_size);
 489         if (rdev->rmmio == NULL) {
 490                 return -ENOMEM;
 491         }
 492         DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)rdev->rmmio_base);
 493         DRM_INFO("register mmio size: %u\n", (unsigned)rdev->rmmio_size);
 494
 495         /* Setup errata flags */
 496         radeon_errata(rdev);
 497         /* Initialize scratch registers */
 498         radeon_scratch_init(rdev);
 499
 500         /* TODO: disable VGA need to use VGA request */
 501         /* BIOS*/
 502         if (!radeon_get_bios(rdev)) {
 503                 if (ASIC_IS_AVIVO(rdev))
 504                         return -EINVAL;
 505         }
 506         if (rdev->is_atom_bios) {
 507                 r = radeon_atombios_init(rdev);
 508                 if (r) {
 509                         return r;
 510                 }
 511         } else {
 512                 r = radeon_combios_init(rdev);
 513                 if (r) {
 514                         return r;
 515                 }
 516         }
 517         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 518         if (radeon_gpu_reset(rdev)) {
 519                 /* FIXME: what do we want to do here ? */
 520         }
 521         /* check if cards are posted or not */
 522         if (!radeon_card_posted(rdev) && rdev->bios) {
 523                 DRM_INFO("GPU not posted. posting now...\n");
 524                 if (rdev->is_atom_bios) {
 525                         atom_asic_init(rdev->mode_info.atom_context);
 526                 } else {
 527                         radeon_combios_asic_init(rdev->ddev);
 528                 }
 529         }
 530         /* Get vram informations */
 531         radeon_vram_info(rdev);
 532         /* Device is severly broken if aper size > vram size.
 533          * for RN50/M6/M7 - Novell bug 204882 ?
 534          */
 535         if (rdev->mc.vram_size < rdev->mc.aper_size) {
 536                 rdev->mc.aper_size = rdev->mc.vram_size;
 537         }
 538         /* Add an MTRR for the VRAM */
 539         rdev->mc.vram_mtrr = mtrr_add(rdev->mc.aper_base, rdev->mc.aper_size,
 540                                       MTRR_TYPE_WRCOMB, 1);
 541         DRM_INFO("Detected VRAM RAM=%uM, BAR=%uM\n",
 542                  rdev->mc.vram_size >> 20,
 543                  (unsigned)rdev->mc.aper_size >> 20);
 544         DRM_INFO("RAM width %dbits %cDR\n",
 545                  rdev->mc.vram_width, rdev->mc.vram_is_ddr ? 'D' : 'S');
 546         /* Initialize clocks */
 547         r = radeon_clocks_init(rdev);
 548         if (r) {
 549                 return r;
 550         }
 551         /* Initialize memory controller (also test AGP) */
 552         r = radeon_mc_init(rdev);
 553         if (r) {
 554                 return r;
 555         }
 556         /* Fence driver */
 557         r = radeon_fence_driver_init(rdev);
 558         if (r) {
 559                 return r;
 560         }
 561         r = radeon_irq_kms_init(rdev);
 562         if (r) {
 563                 return r;
 564         }
 565         /* Memory manager */
 566         r = radeon_object_init(rdev);
 567         if (r) {
 568                 return r;
 569         }
 570         /* Initialize GART (initialize after TTM so we can allocate
 571          * memory through TTM but finalize after TTM) */
 572         r = radeon_gart_enable(rdev);
 573         if (!r) {
 574                 r = radeon_gem_init(rdev);
 575         }
 576
 577         /* 1M ring buffer */
 578         if (!r) {
 579                 r = radeon_cp_init(rdev, 1024 * 1024);
 580         }
 581         if (!r) {
 582                 r = radeon_wb_init(rdev);
 583                 if (r) {
 584                         DRM_ERROR("radeon: failled initializing WB (%d).\n", r);
 585                         return r;
 586                 }
 587         }
 588         if (!r) {
 589                 r = radeon_ib_pool_init(rdev);
 590                 if (r) {
 591                         DRM_ERROR("radeon: failled initializing IB pool (%d).\n", r);
 592                         return r;
 593                 }
 594         }
 595         if (!r) {
 596                 r = radeon_ib_test(rdev);
 597                 if (r) {
 598                         DRM_ERROR("radeon: failled testing IB (%d).\n", r);
 599                         return r;
 600                 }
 601         }
 602         ret = r;
 603         r = radeon_modeset_init(rdev);
 604         if (r) {
 605                 return r;
 606         }
 607         if (rdev->fbdev_rfb && rdev->fbdev_rfb->obj) {
 608                 rdev->fbdev_robj = rdev->fbdev_rfb->obj->driver_private;
 609         }
 610         if (!ret) {
 611                 DRM_INFO("radeon: kernel modesetting successfully initialized.\n");
 612         }
 613         if (radeon_benchmarking) {
 614                 radeon_benchmark(rdev);
 615         }
 616         return ret;
 617 }
 618
 619 void radeon_device_fini(struct radeon_device *rdev)
 620 {
 621         if (rdev == NULL || rdev->rmmio == NULL) {
 622                 return;
 623         }
 624         DRM_INFO("radeon: finishing device.\n");
 625         rdev->shutdown = true;
 626         /* Order matter so becarefull if you rearrange anythings */
 627         radeon_modeset_fini(rdev);
 628         radeon_ib_pool_fini(rdev);
 629         radeon_cp_fini(rdev);
 630         radeon_wb_fini(rdev);
 631         radeon_gem_fini(rdev);
 632         radeon_object_fini(rdev);
 633         /* mc_fini must be after object_fini */
 634         radeon_mc_fini(rdev);
 635 #if __OS_HAS_AGP
 636         radeon_agp_fini(rdev);
 637 #endif
 638         radeon_irq_kms_fini(rdev);
 639         radeon_fence_driver_fini(rdev);
 640         radeon_clocks_fini(rdev);
 641         if (rdev->is_atom_bios) {
 642                 radeon_atombios_fini(rdev);
 643         } else {
 644                 radeon_combios_fini(rdev);
 645         }
 646         kfree(rdev->bios);
 647         rdev->bios = NULL;
 648         iounmap(rdev->rmmio);
 649         rdev->rmmio = NULL;
 650 }
 651
 652
 653 /*
 654  * Suspend & resume.
 655  */
 656 int radeon_suspend_kms(struct drm_device *dev, pm_message_t state)
 657 {
 658         struct radeon_device *rdev = dev->dev_private;
 659         struct drm_crtc *crtc;
 660
 661         if (dev == NULL || rdev == NULL) {
 662                 return -ENODEV;
 663         }
 664         if (state.event == PM_EVENT_PRETHAW) {
 665                 return 0;
 666         }
 667         /* unpin the front buffers */
 668         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 669                 struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->fb);
 670                 struct radeon_object *robj;
 671
 672                 if (rfb == NULL || rfb->obj == NULL) {
 673                         continue;
 674                 }
 675                 robj = rfb->obj->driver_private;
 676                 if (robj != rdev->fbdev_robj) {
 677                         radeon_object_unpin(robj);
 678                 }
 679         }
 680         /* evict vram memory */
 681         radeon_object_evict_vram(rdev);
 682         /* wait for gpu to finish processing current batch */
 683         radeon_fence_wait_last(rdev);
 684
 685         radeon_cp_disable(rdev);
 686         radeon_gart_disable(rdev);
 687
 688         /* evict remaining vram memory */
 689         radeon_object_evict_vram(rdev);
 690
 691         rdev->irq.sw_int = false;
 692         radeon_irq_set(rdev);
 693
 694         pci_save_state(dev->pdev);
 695         if (state.event == PM_EVENT_SUSPEND) {
 696                 /* Shut down the device */
 697                 pci_disable_device(dev->pdev);
 698                 pci_set_power_state(dev->pdev, PCI_D3hot);
 699         }
 700         acquire_console_sem();
 701         fb_set_suspend(rdev->fbdev_info, 1);
 702         release_console_sem();
 703         return 0;
 704 }
 705
 706 int radeon_resume_kms(struct drm_device *dev)
 707 {
 708         struct radeon_device *rdev = dev->dev_private;
 709         int r;
 710
 711         acquire_console_sem();
 712         pci_set_power_state(dev->pdev, PCI_D0);
 713         pci_restore_state(dev->pdev);
 714         if (pci_enable_device(dev->pdev)) {
 715                 release_console_sem();
 716                 return -1;
 717         }
 718         pci_set_master(dev->pdev);
 719         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 720         if (radeon_gpu_reset(rdev)) {
 721                 /* FIXME: what do we want to do here ? */
 722         }
 723         /* post card */
 724         if (rdev->is_atom_bios) {
 725                 atom_asic_init(rdev->mode_info.atom_context);
 726         } else {
 727                 radeon_combios_asic_init(rdev->ddev);
 728         }
 729         /* Initialize clocks */
 730         r = radeon_clocks_init(rdev);
 731         if (r) {
 732                 release_console_sem();
 733                 return r;
 734         }
 735         /* Enable IRQ */
 736         rdev->irq.sw_int = true;
 737         radeon_irq_set(rdev);
 738         /* Initialize GPU Memory Controller */
 739         r = radeon_mc_init(rdev);
 740         if (r) {
 741                 goto out;
 742         }
 743         r = radeon_gart_enable(rdev);
 744         if (r) {
 745                 goto out;
 746         }
 747         r = radeon_cp_init(rdev, rdev->cp.ring_size);
 748         if (r) {
 749                 goto out;
 750         }
 751 out:
 752         fb_set_suspend(rdev->fbdev_info, 0);
 753         release_console_sem();
 754
 755         /* blat the mode back in */
 756         drm_helper_resume_force_mode(dev);
 757         return 0;
 758 }
 759
 760
 761 /*
 762  * Debugfs
 763  */
 764 struct radeon_debugfs {
 765         struct drm_info_list    *files;
 766         unsigned                num_files;
 767 };
 768 static struct radeon_debugfs _radeon_debugfs[RADEON_DEBUGFS_MAX_NUM_FILES];
 769 static unsigned _radeon_debugfs_count = 0;
 770
 771 int radeon_debugfs_add_files(struct radeon_device *rdev,
 772                              struct drm_info_list *files,
 773                              unsigned nfiles)
 774 {
 775         unsigned i;
 776
 777         for (i = 0; i < _radeon_debugfs_count; i++) {
 778                 if (_radeon_debugfs[i].files == files) {
 779                         /* Already registered */
 780                         return 0;
 781                 }
 782         }
 783         if ((_radeon_debugfs_count + nfiles) > RADEON_DEBUGFS_MAX_NUM_FILES) {
 784                 DRM_ERROR("Reached maximum number of debugfs files.\n");
 785                 DRM_ERROR("Report so we increase RADEON_DEBUGFS_MAX_NUM_FILES.\n");
 786                 return -EINVAL;
 787         }
 788         _radeon_debugfs[_radeon_debugfs_count].files = files;
 789         _radeon_debugfs[_radeon_debugfs_count].num_files = nfiles;
 790         _radeon_debugfs_count++;
 791 #if defined(CONFIG_DEBUG_FS)
 792         drm_debugfs_create_files(files, nfiles,
 793                                  rdev->ddev->control->debugfs_root,
 794                                  rdev->ddev->control);
 795         drm_debugfs_create_files(files, nfiles,
 796                                  rdev->ddev->primary->debugfs_root,
 797                                  rdev->ddev->primary);
 798 #endif
 799         return 0;
 800 }
 801
 802 #if defined(CONFIG_DEBUG_FS)
 803 int radeon_debugfs_init(struct drm_minor *minor)
 804 {
 805         return 0;
 806 }
 807
 808 void radeon_debugfs_cleanup(struct drm_minor *minor)
 809 {
 810         unsigned i;
 811
 812         for (i = 0; i < _radeon_debugfs_count; i++) {
 813                 drm_debugfs_remove_files(_radeon_debugfs[i].files,
 814                                          _radeon_debugfs[i].num_files, minor);
 815         }
 816 }
 817 #endif