SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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 < RADEON_GEM_MAX_SURFACES; i++) {
  48                         if (rdev->surface_regs[i].bo)
  49                                 radeon_bo_get_surface_reg(rdev->surface_regs[i].bo);
  50                         else
  51                                 radeon_clear_surface_reg(rdev, i);
  52                 }
  53                 /* enable surfaces */
  54                 WREG32(RADEON_SURFACE_CNTL, 0);
  55         }
  56 }
  57
  58 /*
  59  * GPU scratch registers helpers function.
  60  */
  61 void radeon_scratch_init(struct radeon_device *rdev)
  62 {
  63         int i;
  64
  65         /* FIXME: check this out */
  66         if (rdev->family < CHIP_R300) {
  67                 rdev->scratch.num_reg = 5;
  68         } else {
  69                 rdev->scratch.num_reg = 7;
  70         }
  71         for (i = 0; i < rdev->scratch.num_reg; i++) {
  72                 rdev->scratch.free[i] = true;
  73                 rdev->scratch.reg[i] = RADEON_SCRATCH_REG0 + (i * 4);
  74         }
  75 }
  76
  77 int radeon_scratch_get(struct radeon_device *rdev, uint32_t *reg)
  78 {
  79         int i;
  80
  81         for (i = 0; i < rdev->scratch.num_reg; i++) {
  82                 if (rdev->scratch.free[i]) {
  83                         rdev->scratch.free[i] = false;
  84                         *reg = rdev->scratch.reg[i];
  85                         return 0;
  86                 }
  87         }
  88         return -EINVAL;
  89 }
  90
  91 void radeon_scratch_free(struct radeon_device *rdev, uint32_t reg)
  92 {
  93         int i;
  94
  95         for (i = 0; i < rdev->scratch.num_reg; i++) {
  96                 if (rdev->scratch.reg[i] == reg) {
  97                         rdev->scratch.free[i] = true;
  98                         return;
  99                 }
 100         }
 101 }
 102
 103 /*
 104  * MC common functions
 105  */
 106 int radeon_mc_setup(struct radeon_device *rdev)
 107 {
 108         uint32_t tmp;
 109
 110         /* Some chips have an "issue" with the memory controller, the
 111          * location must be aligned to the size. We just align it down,
 112          * too bad if we walk over the top of system memory, we don't
 113          * use DMA without a remapped anyway.
 114          * Affected chips are rv280, all r3xx, and all r4xx, but not IGP
 115          */
 116         /* FGLRX seems to setup like this, VRAM a 0, then GART.
 117          */
 118         /*
 119          * Note: from R6xx the address space is 40bits but here we only
 120          * use 32bits (still have to see a card which would exhaust 4G
 121          * address space).
 122          */
 123         if (rdev->mc.vram_location != 0xFFFFFFFFUL) {
 124                 /* vram location was already setup try to put gtt after
 125                  * if it fits */
 126                 tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size;
 127                 tmp = (tmp + rdev->mc.gtt_size - 1) & ~(rdev->mc.gtt_size - 1);
 128                 if ((0xFFFFFFFFUL - tmp) >= rdev->mc.gtt_size) {
 129                         rdev->mc.gtt_location = tmp;
 130                 } else {
 131                         if (rdev->mc.gtt_size >= rdev->mc.vram_location) {
 132                                 printk(KERN_ERR "[drm] GTT too big to fit "
 133                                        "before or after vram location.\n");
 134                                 return -EINVAL;
 135                         }
 136                         rdev->mc.gtt_location = 0;
 137                 }
 138         } else if (rdev->mc.gtt_location != 0xFFFFFFFFUL) {
 139                 /* gtt location was already setup try to put vram before
 140                  * if it fits */
 141                 if (rdev->mc.mc_vram_size < rdev->mc.gtt_location) {
 142                         rdev->mc.vram_location = 0;
 143                 } else {
 144                         tmp = rdev->mc.gtt_location + rdev->mc.gtt_size;
 145                         tmp += (rdev->mc.mc_vram_size - 1);
 146                         tmp &= ~(rdev->mc.mc_vram_size - 1);
 147                         if ((0xFFFFFFFFUL - tmp) >= rdev->mc.mc_vram_size) {
 148                                 rdev->mc.vram_location = tmp;
 149                         } else {
 150                                 printk(KERN_ERR "[drm] vram too big to fit "
 151                                        "before or after GTT location.\n");
 152                                 return -EINVAL;
 153                         }
 154                 }
 155         } else {
 156                 rdev->mc.vram_location = 0;
 157                 tmp = rdev->mc.mc_vram_size;
 158                 tmp = (tmp + rdev->mc.gtt_size - 1) & ~(rdev->mc.gtt_size - 1);
 159                 rdev->mc.gtt_location = tmp;
 160         }
 161         rdev->mc.vram_start = rdev->mc.vram_location;
 162         rdev->mc.vram_end = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
 163         rdev->mc.gtt_start = rdev->mc.gtt_location;
 164         rdev->mc.gtt_end = rdev->mc.gtt_location + rdev->mc.gtt_size - 1;
 165         DRM_INFO("radeon: VRAM %uM\n", (unsigned)(rdev->mc.mc_vram_size >> 20));
 166         DRM_INFO("radeon: VRAM from 0x%08X to 0x%08X\n",
 167                  (unsigned)rdev->mc.vram_location,
 168                  (unsigned)(rdev->mc.vram_location + rdev->mc.mc_vram_size - 1));
 169         DRM_INFO("radeon: GTT %uM\n", (unsigned)(rdev->mc.gtt_size >> 20));
 170         DRM_INFO("radeon: GTT from 0x%08X to 0x%08X\n",
 171                  (unsigned)rdev->mc.gtt_location,
 172                  (unsigned)(rdev->mc.gtt_location + rdev->mc.gtt_size - 1));
 173         return 0;
 174 }
 175
 176
 177 /*
 178  * GPU helpers function.
 179  */
 180 bool radeon_card_posted(struct radeon_device *rdev)
 181 {
 182         uint32_t reg;
 183
 184         /* first check CRTCs */
 185         if (ASIC_IS_DCE4(rdev)) {
 186                 reg = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET) |
 187                         RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET) |
 188                         RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET) |
 189                         RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET) |
 190                         RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET) |
 191                         RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET);
 192                 if (reg & EVERGREEN_CRTC_MASTER_EN)
 193                         return true;
 194         } else if (ASIC_IS_AVIVO(rdev)) {
 195                 reg = RREG32(AVIVO_D1CRTC_CONTROL) |
 196                       RREG32(AVIVO_D2CRTC_CONTROL);
 197                 if (reg & AVIVO_CRTC_EN) {
 198                         return true;
 199                 }
 200         } else {
 201                 reg = RREG32(RADEON_CRTC_GEN_CNTL) |
 202                       RREG32(RADEON_CRTC2_GEN_CNTL);
 203                 if (reg & RADEON_CRTC_EN) {
 204                         return true;
 205                 }
 206         }
 207
 208         /* then check MEM_SIZE, in case the crtcs are off */
 209         if (rdev->family >= CHIP_R600)
 210                 reg = RREG32(R600_CONFIG_MEMSIZE);
 211         else
 212                 reg = RREG32(RADEON_CONFIG_MEMSIZE);
 213
 214         if (reg)
 215                 return true;
 216
 217         return false;
 218
 219 }
 220
 221 bool radeon_boot_test_post_card(struct radeon_device *rdev)
 222 {
 223         if (radeon_card_posted(rdev))
 224                 return true;
 225
 226         if (rdev->bios) {
 227                 DRM_INFO("GPU not posted. posting now...\n");
 228                 if (rdev->is_atom_bios)
 229                         atom_asic_init(rdev->mode_info.atom_context);
 230                 else
 231                         radeon_combios_asic_init(rdev->ddev);
 232                 return true;
 233         } else {
 234                 dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
 235                 return false;
 236         }
 237 }
 238
 239 int radeon_dummy_page_init(struct radeon_device *rdev)
 240 {
 241         if (rdev->dummy_page.page)
 242                 return 0;
 243         rdev->dummy_page.page = alloc_page(GFP_DMA32 | GFP_KERNEL | __GFP_ZERO);
 244         if (rdev->dummy_page.page == NULL)
 245                 return -ENOMEM;
 246         rdev->dummy_page.addr = pci_map_page(rdev->pdev, rdev->dummy_page.page,
 247                                         0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
 248         if (!rdev->dummy_page.addr) {
 249                 __free_page(rdev->dummy_page.page);
 250                 rdev->dummy_page.page = NULL;
 251                 return -ENOMEM;
 252         }
 253         return 0;
 254 }
 255
 256 void radeon_dummy_page_fini(struct radeon_device *rdev)
 257 {
 258         if (rdev->dummy_page.page == NULL)
 259                 return;
 260         pci_unmap_page(rdev->pdev, rdev->dummy_page.addr,
 261                         PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
 262         __free_page(rdev->dummy_page.page);
 263         rdev->dummy_page.page = NULL;
 264 }
 265
 266
 267 /*
 268  * Registers accessors functions.
 269  */
 270 uint32_t radeon_invalid_rreg(struct radeon_device *rdev, uint32_t reg)
 271 {
 272         DRM_ERROR("Invalid callback to read register 0x%04X\n", reg);
 273         BUG_ON(1);
 274         return 0;
 275 }
 276
 277 void radeon_invalid_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
 278 {
 279         DRM_ERROR("Invalid callback to write register 0x%04X with 0x%08X\n",
 280                   reg, v);
 281         BUG_ON(1);
 282 }
 283
 284 void radeon_register_accessor_init(struct radeon_device *rdev)
 285 {
 286         rdev->mc_rreg = &radeon_invalid_rreg;
 287         rdev->mc_wreg = &radeon_invalid_wreg;
 288         rdev->pll_rreg = &radeon_invalid_rreg;
 289         rdev->pll_wreg = &radeon_invalid_wreg;
 290         rdev->pciep_rreg = &radeon_invalid_rreg;
 291         rdev->pciep_wreg = &radeon_invalid_wreg;
 292
 293         /* Don't change order as we are overridding accessor. */
 294         if (rdev->family < CHIP_RV515) {
 295                 rdev->pcie_reg_mask = 0xff;
 296         } else {
 297                 rdev->pcie_reg_mask = 0x7ff;
 298         }
 299         /* FIXME: not sure here */
 300         if (rdev->family <= CHIP_R580) {
 301                 rdev->pll_rreg = &r100_pll_rreg;
 302                 rdev->pll_wreg = &r100_pll_wreg;
 303         }
 304         if (rdev->family >= CHIP_R420) {
 305                 rdev->mc_rreg = &r420_mc_rreg;
 306                 rdev->mc_wreg = &r420_mc_wreg;
 307         }
 308         if (rdev->family >= CHIP_RV515) {
 309                 rdev->mc_rreg = &rv515_mc_rreg;
 310                 rdev->mc_wreg = &rv515_mc_wreg;
 311         }
 312         if (rdev->family == CHIP_RS400 || rdev->family == CHIP_RS480) {
 313                 rdev->mc_rreg = &rs400_mc_rreg;
 314                 rdev->mc_wreg = &rs400_mc_wreg;
 315         }
 316         if (rdev->family == CHIP_RS690 || rdev->family == CHIP_RS740) {
 317                 rdev->mc_rreg = &rs690_mc_rreg;
 318                 rdev->mc_wreg = &rs690_mc_wreg;
 319         }
 320         if (rdev->family == CHIP_RS600) {
 321                 rdev->mc_rreg = &rs600_mc_rreg;
 322                 rdev->mc_wreg = &rs600_mc_wreg;
 323         }
 324         if ((rdev->family >= CHIP_R600) && (rdev->family <= CHIP_RV740)) {
 325                 rdev->pciep_rreg = &r600_pciep_rreg;
 326                 rdev->pciep_wreg = &r600_pciep_wreg;
 327         }
 328 }
 329
 330
 331 /*
 332  * ASIC
 333  */
 334 int radeon_asic_init(struct radeon_device *rdev)
 335 {
 336         radeon_register_accessor_init(rdev);
 337         switch (rdev->family) {
 338         case CHIP_R100:
 339         case CHIP_RV100:
 340         case CHIP_RS100:
 341         case CHIP_RV200:
 342         case CHIP_RS200:
 343                 rdev->asic = &r100_asic;
 344                 break;
 345         case CHIP_R200:
 346         case CHIP_RV250:
 347         case CHIP_RS300:
 348         case CHIP_RV280:
 349                 rdev->asic = &r200_asic;
 350                 break;
 351         case CHIP_R300:
 352         case CHIP_R350:
 353         case CHIP_RV350:
 354         case CHIP_RV380:
 355                 if (rdev->flags & RADEON_IS_PCIE)
 356                         rdev->asic = &r300_asic_pcie;
 357                 else
 358                         rdev->asic = &r300_asic;
 359                 break;
 360         case CHIP_R420:
 361         case CHIP_R423:
 362         case CHIP_RV410:
 363                 rdev->asic = &r420_asic;
 364                 break;
 365         case CHIP_RS400:
 366         case CHIP_RS480:
 367                 rdev->asic = &rs400_asic;
 368                 break;
 369         case CHIP_RS600:
 370                 rdev->asic = &rs600_asic;
 371                 break;
 372         case CHIP_RS690:
 373         case CHIP_RS740:
 374                 rdev->asic = &rs690_asic;
 375                 break;
 376         case CHIP_RV515:
 377                 rdev->asic = &rv515_asic;
 378                 break;
 379         case CHIP_R520:
 380         case CHIP_RV530:
 381         case CHIP_RV560:
 382         case CHIP_RV570:
 383         case CHIP_R580:
 384                 rdev->asic = &r520_asic;
 385                 break;
 386         case CHIP_R600:
 387         case CHIP_RV610:
 388         case CHIP_RV630:
 389         case CHIP_RV620:
 390         case CHIP_RV635:
 391         case CHIP_RV670:
 392         case CHIP_RS780:
 393         case CHIP_RS880:
 394                 rdev->asic = &r600_asic;
 395                 break;
 396         case CHIP_RV770:
 397         case CHIP_RV730:
 398         case CHIP_RV710:
 399         case CHIP_RV740:
 400                 rdev->asic = &rv770_asic;
 401                 break;
 402         case CHIP_CEDAR:
 403         case CHIP_REDWOOD:
 404         case CHIP_JUNIPER:
 405         case CHIP_CYPRESS:
 406         case CHIP_HEMLOCK:
 407                 rdev->asic = &evergreen_asic;
 408                 break;
 409         default:
 410                 /* FIXME: not supported yet */
 411                 return -EINVAL;
 412         }
 413
 414         if (rdev->flags & RADEON_IS_IGP) {
 415                 rdev->asic->get_memory_clock = NULL;
 416                 rdev->asic->set_memory_clock = NULL;
 417         }
 418
 419         return 0;
 420 }
 421
 422
 423 /*
 424  * Wrapper around modesetting bits.
 425  */
 426 int radeon_clocks_init(struct radeon_device *rdev)
 427 {
 428         int r;
 429
 430         r = radeon_static_clocks_init(rdev->ddev);
 431         if (r) {
 432                 return r;
 433         }
 434         DRM_INFO("Clocks initialized !\n");
 435         return 0;
 436 }
 437
 438 void radeon_clocks_fini(struct radeon_device *rdev)
 439 {
 440 }
 441
 442 /* ATOM accessor methods */
 443 static uint32_t cail_pll_read(struct card_info *info, uint32_t reg)
 444 {
 445         struct radeon_device *rdev = info->dev->dev_private;
 446         uint32_t r;
 447
 448         r = rdev->pll_rreg(rdev, reg);
 449         return r;
 450 }
 451
 452 static void cail_pll_write(struct card_info *info, uint32_t reg, uint32_t val)
 453 {
 454         struct radeon_device *rdev = info->dev->dev_private;
 455
 456         rdev->pll_wreg(rdev, reg, val);
 457 }
 458
 459 static uint32_t cail_mc_read(struct card_info *info, uint32_t reg)
 460 {
 461         struct radeon_device *rdev = info->dev->dev_private;
 462         uint32_t r;
 463
 464         r = rdev->mc_rreg(rdev, reg);
 465         return r;
 466 }
 467
 468 static void cail_mc_write(struct card_info *info, uint32_t reg, uint32_t val)
 469 {
 470         struct radeon_device *rdev = info->dev->dev_private;
 471
 472         rdev->mc_wreg(rdev, reg, val);
 473 }
 474
 475 static void cail_reg_write(struct card_info *info, uint32_t reg, uint32_t val)
 476 {
 477         struct radeon_device *rdev = info->dev->dev_private;
 478
 479         WREG32(reg*4, val);
 480 }
 481
 482 static uint32_t cail_reg_read(struct card_info *info, uint32_t reg)
 483 {
 484         struct radeon_device *rdev = info->dev->dev_private;
 485         uint32_t r;
 486
 487         r = RREG32(reg*4);
 488         return r;
 489 }
 490
 491 int radeon_atombios_init(struct radeon_device *rdev)
 492 {
 493         struct card_info *atom_card_info =
 494             kzalloc(sizeof(struct card_info), GFP_KERNEL);
 495
 496         if (!atom_card_info)
 497                 return -ENOMEM;
 498
 499         rdev->mode_info.atom_card_info = atom_card_info;
 500         atom_card_info->dev = rdev->ddev;
 501         atom_card_info->reg_read = cail_reg_read;
 502         atom_card_info->reg_write = cail_reg_write;
 503         atom_card_info->mc_read = cail_mc_read;
 504         atom_card_info->mc_write = cail_mc_write;
 505         atom_card_info->pll_read = cail_pll_read;
 506         atom_card_info->pll_write = cail_pll_write;
 507
 508         rdev->mode_info.atom_context = atom_parse(atom_card_info, rdev->bios);
 509         mutex_init(&rdev->mode_info.atom_context->mutex);
 510         radeon_atom_initialize_bios_scratch_regs(rdev->ddev);
 511         atom_allocate_fb_scratch(rdev->mode_info.atom_context);
 512         return 0;
 513 }
 514
 515 void radeon_atombios_fini(struct radeon_device *rdev)
 516 {
 517         if (rdev->mode_info.atom_context) {
 518                 kfree(rdev->mode_info.atom_context->scratch);
 519                 kfree(rdev->mode_info.atom_context);
 520         }
 521         kfree(rdev->mode_info.atom_card_info);
 522 }
 523
 524 int radeon_combios_init(struct radeon_device *rdev)
 525 {
 526         radeon_combios_initialize_bios_scratch_regs(rdev->ddev);
 527         return 0;
 528 }
 529
 530 void radeon_combios_fini(struct radeon_device *rdev)
 531 {
 532 }
 533
 534 /* if we get transitioned to only one device, tak VGA back */
 535 static unsigned int radeon_vga_set_decode(void *cookie, bool state)
 536 {
 537         struct radeon_device *rdev = cookie;
 538         radeon_vga_set_state(rdev, state);
 539         if (state)
 540                 return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
 541                        VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
 542         else
 543                 return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
 544 }
 545
 546 void radeon_agp_disable(struct radeon_device *rdev)
 547 {
 548         rdev->flags &= ~RADEON_IS_AGP;
 549         if (rdev->family >= CHIP_R600) {
 550                 DRM_INFO("Forcing AGP to PCIE mode\n");
 551                 rdev->flags |= RADEON_IS_PCIE;
 552         } else if (rdev->family >= CHIP_RV515 ||
 553                         rdev->family == CHIP_RV380 ||
 554                         rdev->family == CHIP_RV410 ||
 555                         rdev->family == CHIP_R423) {
 556                 DRM_INFO("Forcing AGP to PCIE mode\n");
 557                 rdev->flags |= RADEON_IS_PCIE;
 558                 rdev->asic->gart_tlb_flush = &rv370_pcie_gart_tlb_flush;
 559                 rdev->asic->gart_set_page = &rv370_pcie_gart_set_page;
 560         } else {
 561                 DRM_INFO("Forcing AGP to PCI mode\n");
 562                 rdev->flags |= RADEON_IS_PCI;
 563                 rdev->asic->gart_tlb_flush = &r100_pci_gart_tlb_flush;
 564                 rdev->asic->gart_set_page = &r100_pci_gart_set_page;
 565         }
 566         rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
 567 }
 568
 569 void radeon_check_arguments(struct radeon_device *rdev)
 570 {
 571         /* vramlimit must be a power of two */
 572         switch (radeon_vram_limit) {
 573         case 0:
 574         case 4:
 575         case 8:
 576         case 16:
 577         case 32:
 578         case 64:
 579         case 128:
 580         case 256:
 581         case 512:
 582         case 1024:
 583         case 2048:
 584         case 4096:
 585                 break;
 586         default:
 587                 dev_warn(rdev->dev, "vram limit (%d) must be a power of 2\n",
 588                                 radeon_vram_limit);
 589                 radeon_vram_limit = 0;
 590                 break;
 591         }
 592         radeon_vram_limit = radeon_vram_limit << 20;
 593         /* gtt size must be power of two and greater or equal to 32M */
 594         switch (radeon_gart_size) {
 595         case 4:
 596         case 8:
 597         case 16:
 598                 dev_warn(rdev->dev, "gart size (%d) too small forcing to 512M\n",
 599                                 radeon_gart_size);
 600                 radeon_gart_size = 512;
 601                 break;
 602         case 32:
 603         case 64:
 604         case 128:
 605         case 256:
 606         case 512:
 607         case 1024:
 608         case 2048:
 609         case 4096:
 610                 break;
 611         default:
 612                 dev_warn(rdev->dev, "gart size (%d) must be a power of 2\n",
 613                                 radeon_gart_size);
 614                 radeon_gart_size = 512;
 615                 break;
 616         }
 617         rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
 618         /* AGP mode can only be -1, 1, 2, 4, 8 */
 619         switch (radeon_agpmode) {
 620         case -1:
 621         case 0:
 622         case 1:
 623         case 2:
 624         case 4:
 625         case 8:
 626                 break;
 627         default:
 628                 dev_warn(rdev->dev, "invalid AGP mode %d (valid mode: "
 629                                 "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode);
 630                 radeon_agpmode = 0;
 631                 break;
 632         }
 633 }
 634
 635 int radeon_device_init(struct radeon_device *rdev,
 636                        struct drm_device *ddev,
 637                        struct pci_dev *pdev,
 638                        uint32_t flags)
 639 {
 640         int r;
 641         int dma_bits;
 642
 643         DRM_INFO("radeon: Initializing kernel modesetting.\n");
 644         rdev->shutdown = false;
 645         rdev->dev = &pdev->dev;
 646         rdev->ddev = ddev;
 647         rdev->pdev = pdev;
 648         rdev->flags = flags;
 649         rdev->family = flags & RADEON_FAMILY_MASK;
 650         rdev->is_atom_bios = false;
 651         rdev->usec_timeout = RADEON_MAX_USEC_TIMEOUT;
 652         rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
 653         rdev->gpu_lockup = false;
 654         rdev->accel_working = false;
 655         /* mutex initialization are all done here so we
 656          * can recall function without having locking issues */
 657         mutex_init(&rdev->cs_mutex);
 658         mutex_init(&rdev->ib_pool.mutex);
 659         mutex_init(&rdev->cp.mutex);
 660         mutex_init(&rdev->dc_hw_i2c_mutex);
 661         if (rdev->family >= CHIP_R600)
 662                 spin_lock_init(&rdev->ih.lock);
 663         mutex_init(&rdev->gem.mutex);
 664         mutex_init(&rdev->pm.mutex);
 665         rwlock_init(&rdev->fence_drv.lock);
 666         INIT_LIST_HEAD(&rdev->gem.objects);
 667         init_waitqueue_head(&rdev->irq.vblank_queue);
 668
 669         /* setup workqueue */
 670         rdev->wq = create_workqueue("radeon");
 671         if (rdev->wq == NULL)
 672                 return -ENOMEM;
 673
 674         /* Set asic functions */
 675         r = radeon_asic_init(rdev);
 676         if (r)
 677                 return r;
 678         radeon_check_arguments(rdev);
 679
 680         if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
 681                 radeon_agp_disable(rdev);
 682         }
 683
 684         /* set DMA mask + need_dma32 flags.
 685          * PCIE - can handle 40-bits.
 686          * IGP - can handle 40-bits (in theory)
 687          * AGP - generally dma32 is safest
 688          * PCI - only dma32
 689          */
 690         rdev->need_dma32 = false;
 691         if (rdev->flags & RADEON_IS_AGP)
 692                 rdev->need_dma32 = true;
 693         if (rdev->flags & RADEON_IS_PCI)
 694                 rdev->need_dma32 = true;
 695
 696         dma_bits = rdev->need_dma32 ? 32 : 40;
 697         r = pci_set_dma_mask(rdev->pdev, DMA_BIT_MASK(dma_bits));
 698         if (r) {
 699                 printk(KERN_WARNING "radeon: No suitable DMA available.\n");
 700         }
 701
 702         /* Registers mapping */
 703         /* TODO: block userspace mapping of io register */
 704         rdev->rmmio_base = drm_get_resource_start(rdev->ddev, 2);
 705         rdev->rmmio_size = drm_get_resource_len(rdev->ddev, 2);
 706         rdev->rmmio = ioremap(rdev->rmmio_base, rdev->rmmio_size);
 707         if (rdev->rmmio == NULL) {
 708                 return -ENOMEM;
 709         }
 710         DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)rdev->rmmio_base);
 711         DRM_INFO("register mmio size: %u\n", (unsigned)rdev->rmmio_size);
 712
 713         /* if we have > 1 VGA cards, then disable the radeon VGA resources */
 714         /* this will fail for cards that aren't VGA class devices, just
 715          * ignore it */
 716         vga_client_register(rdev->pdev, rdev, NULL, radeon_vga_set_decode);
 717
 718         r = radeon_init(rdev);
 719         if (r)
 720                 return r;
 721
 722         if (rdev->flags & RADEON_IS_AGP && !rdev->accel_working) {
 723                 /* Acceleration not working on AGP card try again
 724                  * with fallback to PCI or PCIE GART
 725                  */
 726                 radeon_gpu_reset(rdev);
 727                 radeon_fini(rdev);
 728                 radeon_agp_disable(rdev);
 729                 r = radeon_init(rdev);
 730                 if (r)
 731                         return r;
 732         }
 733         if (radeon_testing) {
 734                 radeon_test_moves(rdev);
 735         }
 736         if (radeon_benchmarking) {
 737                 radeon_benchmark(rdev);
 738         }
 739         return 0;
 740 }
 741
 742 void radeon_device_fini(struct radeon_device *rdev)
 743 {
 744         DRM_INFO("radeon: finishing device.\n");
 745         rdev->shutdown = true;
 746         radeon_fini(rdev);
 747         destroy_workqueue(rdev->wq);
 748         vga_client_register(rdev->pdev, NULL, NULL, NULL);
 749         iounmap(rdev->rmmio);
 750         rdev->rmmio = NULL;
 751 }
 752
 753
 754 /*
 755  * Suspend & resume.
 756  */
 757 int radeon_suspend_kms(struct drm_device *dev, pm_message_t state)
 758 {
 759         struct radeon_device *rdev;
 760         struct drm_crtc *crtc;
 761         int r;
 762
 763         if (dev == NULL || dev->dev_private == NULL) {
 764                 return -ENODEV;
 765         }
 766         if (state.event == PM_EVENT_PRETHAW) {
 767                 return 0;
 768         }
 769         rdev = dev->dev_private;
 770
 771         /* unpin the front buffers */
 772         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 773                 struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->fb);
 774                 struct radeon_bo *robj;
 775
 776                 if (rfb == NULL || rfb->obj == NULL) {
 777                         continue;
 778                 }
 779                 robj = rfb->obj->driver_private;
 780                 if (robj != rdev->fbdev_rbo) {
 781                         r = radeon_bo_reserve(robj, false);
 782                         if (unlikely(r == 0)) {
 783                                 radeon_bo_unpin(robj);
 784                                 radeon_bo_unreserve(robj);
 785                         }
 786                 }
 787         }
 788         /* evict vram memory */
 789         radeon_bo_evict_vram(rdev);
 790         /* wait for gpu to finish processing current batch */
 791         radeon_fence_wait_last(rdev);
 792
 793         radeon_save_bios_scratch_regs(rdev);
 794
 795         radeon_suspend(rdev);
 796         radeon_hpd_fini(rdev);
 797         /* evict remaining vram memory */
 798         radeon_bo_evict_vram(rdev);
 799
 800         pci_save_state(dev->pdev);
 801         if (state.event == PM_EVENT_SUSPEND) {
 802                 /* Shut down the device */
 803                 pci_disable_device(dev->pdev);
 804                 pci_set_power_state(dev->pdev, PCI_D3hot);
 805         }
 806         acquire_console_sem();
 807         fb_set_suspend(rdev->fbdev_info, 1);
 808         release_console_sem();
 809         return 0;
 810 }
 811
 812 int radeon_resume_kms(struct drm_device *dev)
 813 {
 814         struct radeon_device *rdev = dev->dev_private;
 815
 816         acquire_console_sem();
 817         pci_set_power_state(dev->pdev, PCI_D0);
 818         pci_restore_state(dev->pdev);
 819         if (pci_enable_device(dev->pdev)) {
 820                 release_console_sem();
 821                 return -1;
 822         }
 823         pci_set_master(dev->pdev);
 824         /* resume AGP if in use */
 825         radeon_agp_resume(rdev);
 826         radeon_resume(rdev);
 827         radeon_restore_bios_scratch_regs(rdev);
 828         fb_set_suspend(rdev->fbdev_info, 0);
 829         release_console_sem();
 830
 831         /* reset hpd state */
 832         radeon_hpd_init(rdev);
 833         /* blat the mode back in */
 834         drm_helper_resume_force_mode(dev);
 835         return 0;
 836 }
 837
 838
 839 /*
 840  * Debugfs
 841  */
 842 struct radeon_debugfs {
 843         struct drm_info_list    *files;
 844         unsigned                num_files;
 845 };
 846 static struct radeon_debugfs _radeon_debugfs[RADEON_DEBUGFS_MAX_NUM_FILES];
 847 static unsigned _radeon_debugfs_count = 0;
 848
 849 int radeon_debugfs_add_files(struct radeon_device *rdev,
 850                              struct drm_info_list *files,
 851                              unsigned nfiles)
 852 {
 853         unsigned i;
 854
 855         for (i = 0; i < _radeon_debugfs_count; i++) {
 856                 if (_radeon_debugfs[i].files == files) {
 857                         /* Already registered */
 858                         return 0;
 859                 }
 860         }
 861         if ((_radeon_debugfs_count + nfiles) > RADEON_DEBUGFS_MAX_NUM_FILES) {
 862                 DRM_ERROR("Reached maximum number of debugfs files.\n");
 863                 DRM_ERROR("Report so we increase RADEON_DEBUGFS_MAX_NUM_FILES.\n");
 864                 return -EINVAL;
 865         }
 866         _radeon_debugfs[_radeon_debugfs_count].files = files;
 867         _radeon_debugfs[_radeon_debugfs_count].num_files = nfiles;
 868         _radeon_debugfs_count++;
 869 #if defined(CONFIG_DEBUG_FS)
 870         drm_debugfs_create_files(files, nfiles,
 871                                  rdev->ddev->control->debugfs_root,
 872                                  rdev->ddev->control);
 873         drm_debugfs_create_files(files, nfiles,
 874                                  rdev->ddev->primary->debugfs_root,
 875                                  rdev->ddev->primary);
 876 #endif
 877         return 0;
 878 }
 879
 880 #if defined(CONFIG_DEBUG_FS)
 881 int radeon_debugfs_init(struct drm_minor *minor)
 882 {
 883         return 0;
 884 }
 885
 886 void radeon_debugfs_cleanup(struct drm_minor *minor)
 887 {
 888         unsigned i;
 889
 890         for (i = 0; i < _radeon_debugfs_count; i++) {
 891                 drm_debugfs_remove_files(_radeon_debugfs[i].files,
 892                                          _radeon_debugfs[i].num_files, minor);
 893         }
 894 }
 895 #endif