drivers/gpu/drm/radeon/rs400.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/seq_file.h>
  29 #include <linux/slab.h>
  30 #include <drm/drmP.h>
  31 #include "radeon.h"
  32 #include "radeon_asic.h"
  33 #include "rs400d.h"
  34
  35 /* This files gather functions specifics to : rs400,rs480 */
  36 static int rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev);
  37
  38 void rs400_gart_adjust_size(struct radeon_device *rdev)
  39 {
  40         /* Check gart size */
  41         switch (rdev->mc.gtt_size/(1024*1024)) {
  42         case 32:
  43         case 64:
  44         case 128:
  45         case 256:
  46         case 512:
  47         case 1024:
  48         case 2048:
  49                 break;
  50         default:
  51                 DRM_ERROR("Unable to use IGP GART size %uM\n",
  52                           (unsigned)(rdev->mc.gtt_size >> 20));
  53                 DRM_ERROR("Valid GART size for IGP are 32M,64M,128M,256M,512M,1G,2G\n");
  54                 DRM_ERROR("Forcing to 32M GART size\n");
  55                 rdev->mc.gtt_size = 32 * 1024 * 1024;
  56                 return;
  57         }
  58 }
  59
  60 void rs400_gart_tlb_flush(struct radeon_device *rdev)
  61 {
  62         uint32_t tmp;
  63         unsigned int timeout = rdev->usec_timeout;
  64
  65         WREG32_MC(RS480_GART_CACHE_CNTRL, RS480_GART_CACHE_INVALIDATE);
  66         do {
  67                 tmp = RREG32_MC(RS480_GART_CACHE_CNTRL);
  68                 if ((tmp & RS480_GART_CACHE_INVALIDATE) == 0)
  69                         break;
  70                 DRM_UDELAY(1);
  71                 timeout--;
  72         } while (timeout > 0);
  73         WREG32_MC(RS480_GART_CACHE_CNTRL, 0);
  74 }
  75
  76 int rs400_gart_init(struct radeon_device *rdev)
  77 {
  78         int r;
  79
  80         if (rdev->gart.ptr) {
  81                 WARN(1, "RS400 GART already initialized\n");
  82                 return 0;
  83         }
  84         /* Check gart size */
  85         switch(rdev->mc.gtt_size / (1024 * 1024)) {
  86         case 32:
  87         case 64:
  88         case 128:
  89         case 256:
  90         case 512:
  91         case 1024:
  92         case 2048:
  93                 break;
  94         default:
  95                 return -EINVAL;
  96         }
  97         /* Initialize common gart structure */
  98         r = radeon_gart_init(rdev);
  99         if (r)
 100                 return r;
 101         if (rs400_debugfs_pcie_gart_info_init(rdev))
 102                 DRM_ERROR("Failed to register debugfs file for RS400 GART !\n");
 103         rdev->gart.table_size = rdev->gart.num_gpu_pages * 4;
 104         return radeon_gart_table_ram_alloc(rdev);
 105 }
 106
 107 int rs400_gart_enable(struct radeon_device *rdev)
 108 {
 109         uint32_t size_reg;
 110         uint32_t tmp;
 111
 112         tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
 113         tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS;
 114         WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
 115         /* Check gart size */
 116         switch(rdev->mc.gtt_size / (1024 * 1024)) {
 117         case 32:
 118                 size_reg = RS480_VA_SIZE_32MB;
 119                 break;
 120         case 64:
 121                 size_reg = RS480_VA_SIZE_64MB;
 122                 break;
 123         case 128:
 124                 size_reg = RS480_VA_SIZE_128MB;
 125                 break;
 126         case 256:
 127                 size_reg = RS480_VA_SIZE_256MB;
 128                 break;
 129         case 512:
 130                 size_reg = RS480_VA_SIZE_512MB;
 131                 break;
 132         case 1024:
 133                 size_reg = RS480_VA_SIZE_1GB;
 134                 break;
 135         case 2048:
 136                 size_reg = RS480_VA_SIZE_2GB;
 137                 break;
 138         default:
 139                 return -EINVAL;
 140         }
 141         /* It should be fine to program it to max value */
 142         if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) {
 143                 WREG32_MC(RS690_MCCFG_AGP_BASE, 0xFFFFFFFF);
 144                 WREG32_MC(RS690_MCCFG_AGP_BASE_2, 0);
 145         } else {
 146                 WREG32(RADEON_AGP_BASE, 0xFFFFFFFF);
 147                 WREG32(RS480_AGP_BASE_2, 0);
 148         }
 149         tmp = REG_SET(RS690_MC_AGP_TOP, rdev->mc.gtt_end >> 16);
 150         tmp |= REG_SET(RS690_MC_AGP_START, rdev->mc.gtt_start >> 16);
 151         if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
 152                 WREG32_MC(RS690_MCCFG_AGP_LOCATION, tmp);
 153                 tmp = RREG32(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS;
 154                 WREG32(RADEON_BUS_CNTL, tmp);
 155         } else {
 156                 WREG32(RADEON_MC_AGP_LOCATION, tmp);
 157                 tmp = RREG32(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
 158                 WREG32(RADEON_BUS_CNTL, tmp);
 159         }
 160         /* Table should be in 32bits address space so ignore bits above. */
 161         tmp = (u32)rdev->gart.table_addr & 0xfffff000;
 162         tmp |= (upper_32_bits(rdev->gart.table_addr) & 0xff) << 4;
 163
 164         WREG32_MC(RS480_GART_BASE, tmp);
 165         /* TODO: more tweaking here */
 166         WREG32_MC(RS480_GART_FEATURE_ID,
 167                   (RS480_TLB_ENABLE |
 168                    RS480_GTW_LAC_EN | RS480_1LEVEL_GART));
 169         /* Disable snooping */
 170         WREG32_MC(RS480_AGP_MODE_CNTL,
 171                   (1 << RS480_REQ_TYPE_SNOOP_SHIFT) | RS480_REQ_TYPE_SNOOP_DIS);
 172         /* Disable AGP mode */
 173         /* FIXME: according to doc we should set HIDE_MMCFG_BAR=0,
 174          * AGPMODE30=0 & AGP30ENHANCED=0 in NB_CNTL */
 175         if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
 176                 tmp = RREG32_MC(RS480_MC_MISC_CNTL);
 177                 tmp |= RS480_GART_INDEX_REG_EN | RS690_BLOCK_GFX_D3_EN;
 178                 WREG32_MC(RS480_MC_MISC_CNTL, tmp);
 179         } else {
 180                 tmp = RREG32_MC(RS480_MC_MISC_CNTL);
 181                 tmp |= RS480_GART_INDEX_REG_EN;
 182                 WREG32_MC(RS480_MC_MISC_CNTL, tmp);
 183         }
 184         /* Enable gart */
 185         WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN | size_reg));
 186         rs400_gart_tlb_flush(rdev);
 187         DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 188                  (unsigned)(rdev->mc.gtt_size >> 20),
 189                  (unsigned long long)rdev->gart.table_addr);
 190         rdev->gart.ready = true;
 191         return 0;
 192 }
 193
 194 void rs400_gart_disable(struct radeon_device *rdev)
 195 {
 196         uint32_t tmp;
 197
 198         tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
 199         tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS;
 200         WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
 201         WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, 0);
 202 }
 203
 204 void rs400_gart_fini(struct radeon_device *rdev)
 205 {
 206         radeon_gart_fini(rdev);
 207         rs400_gart_disable(rdev);
 208         radeon_gart_table_ram_free(rdev);
 209 }
 210
 211 #define RS400_PTE_UNSNOOPED (1 << 0)
 212 #define RS400_PTE_WRITEABLE (1 << 2)
 213 #define RS400_PTE_READABLE  (1 << 3)
 214
 215 uint64_t rs400_gart_get_page_entry(uint64_t addr, uint32_t flags)
 216 {
 217         uint32_t entry;
 218
 219         entry = (lower_32_bits(addr) & PAGE_MASK) |
 220                 ((upper_32_bits(addr) & 0xff) << 4);
 221         if (flags & RADEON_GART_PAGE_READ)
 222                 entry |= RS400_PTE_READABLE;
 223         if (flags & RADEON_GART_PAGE_WRITE)
 224                 entry |= RS400_PTE_WRITEABLE;
 225         if (!(flags & RADEON_GART_PAGE_SNOOP))
 226                 entry |= RS400_PTE_UNSNOOPED;
 227         return entry;
 228 }
 229
 230 void rs400_gart_set_page(struct radeon_device *rdev, unsigned i,
 231                          uint64_t entry)
 232 {
 233         u32 *gtt = rdev->gart.ptr;
 234         gtt[i] = cpu_to_le32(lower_32_bits(entry));
 235 }
 236
 237 int rs400_mc_wait_for_idle(struct radeon_device *rdev)
 238 {
 239         unsigned i;
 240         uint32_t tmp;
 241
 242         for (i = 0; i < rdev->usec_timeout; i++) {
 243                 /* read MC_STATUS */
 244                 tmp = RREG32(RADEON_MC_STATUS);
 245                 if (tmp & RADEON_MC_IDLE) {
 246                         return 0;
 247                 }
 248                 DRM_UDELAY(1);
 249         }
 250         return -1;
 251 }
 252
 253 static void rs400_gpu_init(struct radeon_device *rdev)
 254 {
 255         /* FIXME: is this correct ? */
 256         r420_pipes_init(rdev);
 257         if (rs400_mc_wait_for_idle(rdev)) {
 258                 printk(KERN_WARNING "rs400: Failed to wait MC idle while "
 259                        "programming pipes. Bad things might happen. %08x\n", RREG32(RADEON_MC_STATUS));
 260         }
 261 }
 262
 263 static void rs400_mc_init(struct radeon_device *rdev)
 264 {
 265         u64 base;
 266
 267         rs400_gart_adjust_size(rdev);
 268         rdev->mc.igp_sideport_enabled = radeon_combios_sideport_present(rdev);
 269         /* DDR for all card after R300 & IGP */
 270         rdev->mc.vram_is_ddr = true;
 271         rdev->mc.vram_width = 128;
 272         r100_vram_init_sizes(rdev);
 273         base = (RREG32(RADEON_NB_TOM) & 0xffff) << 16;
 274         radeon_vram_location(rdev, &rdev->mc, base);
 275         rdev->mc.gtt_base_align = rdev->mc.gtt_size - 1;
 276         radeon_gtt_location(rdev, &rdev->mc);
 277         radeon_update_bandwidth_info(rdev);
 278 }
 279
 280 uint32_t rs400_mc_rreg(struct radeon_device *rdev, uint32_t reg)
 281 {
 282         unsigned long flags;
 283         uint32_t r;
 284
 285         spin_lock_irqsave(&rdev->mc_idx_lock, flags);
 286         WREG32(RS480_NB_MC_INDEX, reg & 0xff);
 287         r = RREG32(RS480_NB_MC_DATA);
 288         WREG32(RS480_NB_MC_INDEX, 0xff);
 289         spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
 290         return r;
 291 }
 292
 293 void rs400_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
 294 {
 295         unsigned long flags;
 296
 297         spin_lock_irqsave(&rdev->mc_idx_lock, flags);
 298         WREG32(RS480_NB_MC_INDEX, ((reg) & 0xff) | RS480_NB_MC_IND_WR_EN);
 299         WREG32(RS480_NB_MC_DATA, (v));
 300         WREG32(RS480_NB_MC_INDEX, 0xff);
 301         spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
 302 }
 303
 304 #if defined(CONFIG_DEBUG_FS)
 305 static int rs400_debugfs_gart_info(struct seq_file *m, void *data)
 306 {
 307         struct drm_info_node *node = (struct drm_info_node *) m->private;
 308         struct drm_device *dev = node->minor->dev;
 309         struct radeon_device *rdev = dev->dev_private;
 310         uint32_t tmp;
 311
 312         tmp = RREG32(RADEON_HOST_PATH_CNTL);
 313         seq_printf(m, "HOST_PATH_CNTL 0x%08x\n", tmp);
 314         tmp = RREG32(RADEON_BUS_CNTL);
 315         seq_printf(m, "BUS_CNTL 0x%08x\n", tmp);
 316         tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
 317         seq_printf(m, "AIC_CTRL_SCRATCH 0x%08x\n", tmp);
 318         if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) {
 319                 tmp = RREG32_MC(RS690_MCCFG_AGP_BASE);
 320                 seq_printf(m, "MCCFG_AGP_BASE 0x%08x\n", tmp);
 321                 tmp = RREG32_MC(RS690_MCCFG_AGP_BASE_2);
 322                 seq_printf(m, "MCCFG_AGP_BASE_2 0x%08x\n", tmp);
 323                 tmp = RREG32_MC(RS690_MCCFG_AGP_LOCATION);
 324                 seq_printf(m, "MCCFG_AGP_LOCATION 0x%08x\n", tmp);
 325                 tmp = RREG32_MC(RS690_MCCFG_FB_LOCATION);
 326                 seq_printf(m, "MCCFG_FB_LOCATION 0x%08x\n", tmp);
 327                 tmp = RREG32(RS690_HDP_FB_LOCATION);
 328                 seq_printf(m, "HDP_FB_LOCATION 0x%08x\n", tmp);
 329         } else {
 330                 tmp = RREG32(RADEON_AGP_BASE);
 331                 seq_printf(m, "AGP_BASE 0x%08x\n", tmp);
 332                 tmp = RREG32(RS480_AGP_BASE_2);
 333                 seq_printf(m, "AGP_BASE_2 0x%08x\n", tmp);
 334                 tmp = RREG32(RADEON_MC_AGP_LOCATION);
 335                 seq_printf(m, "MC_AGP_LOCATION 0x%08x\n", tmp);
 336         }
 337         tmp = RREG32_MC(RS480_GART_BASE);
 338         seq_printf(m, "GART_BASE 0x%08x\n", tmp);
 339         tmp = RREG32_MC(RS480_GART_FEATURE_ID);
 340         seq_printf(m, "GART_FEATURE_ID 0x%08x\n", tmp);
 341         tmp = RREG32_MC(RS480_AGP_MODE_CNTL);
 342         seq_printf(m, "AGP_MODE_CONTROL 0x%08x\n", tmp);
 343         tmp = RREG32_MC(RS480_MC_MISC_CNTL);
 344         seq_printf(m, "MC_MISC_CNTL 0x%08x\n", tmp);
 345         tmp = RREG32_MC(0x5F);
 346         seq_printf(m, "MC_MISC_UMA_CNTL 0x%08x\n", tmp);
 347         tmp = RREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE);
 348         seq_printf(m, "AGP_ADDRESS_SPACE_SIZE 0x%08x\n", tmp);
 349         tmp = RREG32_MC(RS480_GART_CACHE_CNTRL);
 350         seq_printf(m, "GART_CACHE_CNTRL 0x%08x\n", tmp);
 351         tmp = RREG32_MC(0x3B);
 352         seq_printf(m, "MC_GART_ERROR_ADDRESS 0x%08x\n", tmp);
 353         tmp = RREG32_MC(0x3C);
 354         seq_printf(m, "MC_GART_ERROR_ADDRESS_HI 0x%08x\n", tmp);
 355         tmp = RREG32_MC(0x30);
 356         seq_printf(m, "GART_ERROR_0 0x%08x\n", tmp);
 357         tmp = RREG32_MC(0x31);
 358         seq_printf(m, "GART_ERROR_1 0x%08x\n", tmp);
 359         tmp = RREG32_MC(0x32);
 360         seq_printf(m, "GART_ERROR_2 0x%08x\n", tmp);
 361         tmp = RREG32_MC(0x33);
 362         seq_printf(m, "GART_ERROR_3 0x%08x\n", tmp);
 363         tmp = RREG32_MC(0x34);
 364         seq_printf(m, "GART_ERROR_4 0x%08x\n", tmp);
 365         tmp = RREG32_MC(0x35);
 366         seq_printf(m, "GART_ERROR_5 0x%08x\n", tmp);
 367         tmp = RREG32_MC(0x36);
 368         seq_printf(m, "GART_ERROR_6 0x%08x\n", tmp);
 369         tmp = RREG32_MC(0x37);
 370         seq_printf(m, "GART_ERROR_7 0x%08x\n", tmp);
 371         return 0;
 372 }
 373
 374 static struct drm_info_list rs400_gart_info_list[] = {
 375         {"rs400_gart_info", rs400_debugfs_gart_info, 0, NULL},
 376 };
 377 #endif
 378
 379 static int rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev)
 380 {
 381 #if defined(CONFIG_DEBUG_FS)
 382         return radeon_debugfs_add_files(rdev, rs400_gart_info_list, 1);
 383 #else
 384         return 0;
 385 #endif
 386 }
 387
 388 static void rs400_mc_program(struct radeon_device *rdev)
 389 {
 390         struct r100_mc_save save;
 391
 392         /* Stops all mc clients */
 393         r100_mc_stop(rdev, &save);
 394
 395         /* Wait for mc idle */
 396         if (rs400_mc_wait_for_idle(rdev))
 397                 dev_warn(rdev->dev, "rs400: Wait MC idle timeout before updating MC.\n");
 398         WREG32(R_000148_MC_FB_LOCATION,
 399                 S_000148_MC_FB_START(rdev->mc.vram_start >> 16) |
 400                 S_000148_MC_FB_TOP(rdev->mc.vram_end >> 16));
 401
 402         r100_mc_resume(rdev, &save);
 403 }
 404
 405 static int rs400_startup(struct radeon_device *rdev)
 406 {
 407         int r;
 408
 409         r100_set_common_regs(rdev);
 410
 411         rs400_mc_program(rdev);
 412         /* Resume clock */
 413         r300_clock_startup(rdev);
 414         /* Initialize GPU configuration (# pipes, ...) */
 415         rs400_gpu_init(rdev);
 416         r100_enable_bm(rdev);
 417         /* Initialize GART (initialize after TTM so we can allocate
 418          * memory through TTM but finalize after TTM) */
 419         r = rs400_gart_enable(rdev);
 420         if (r)
 421                 return r;
 422
 423         /* allocate wb buffer */
 424         r = radeon_wb_init(rdev);
 425         if (r)
 426                 return r;
 427
 428         r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
 429         if (r) {
 430                 dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
 431                 return r;
 432         }
 433
 434         /* Enable IRQ */
 435         if (!rdev->irq.installed) {
 436                 r = radeon_irq_kms_init(rdev);
 437                 if (r)
 438                         return r;
 439         }
 440
 441         r100_irq_set(rdev);
 442         rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 443         /* 1M ring buffer */
 444         r = r100_cp_init(rdev, 1024 * 1024);
 445         if (r) {
 446                 dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
 447                 return r;
 448         }
 449
 450         r = radeon_ib_pool_init(rdev);
 451         if (r) {
 452                 dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
 453                 return r;
 454         }
 455
 456         return 0;
 457 }
 458
 459 int rs400_resume(struct radeon_device *rdev)
 460 {
 461         int r;
 462
 463         /* Make sur GART are not working */
 464         rs400_gart_disable(rdev);
 465         /* Resume clock before doing reset */
 466         r300_clock_startup(rdev);
 467         /* setup MC before calling post tables */
 468         rs400_mc_program(rdev);
 469         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 470         if (radeon_asic_reset(rdev)) {
 471                 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 472                         RREG32(R_000E40_RBBM_STATUS),
 473                         RREG32(R_0007C0_CP_STAT));
 474         }
 475         /* post */
 476         radeon_combios_asic_init(rdev->ddev);
 477         /* Resume clock after posting */
 478         r300_clock_startup(rdev);
 479         /* Initialize surface registers */
 480         radeon_surface_init(rdev);
 481
 482         rdev->accel_working = true;
 483         r = rs400_startup(rdev);
 484         if (r) {
 485                 rdev->accel_working = false;
 486         }
 487         return r;
 488 }
 489
 490 int rs400_suspend(struct radeon_device *rdev)
 491 {
 492         radeon_pm_suspend(rdev);
 493         r100_cp_disable(rdev);
 494         radeon_wb_disable(rdev);
 495         r100_irq_disable(rdev);
 496         rs400_gart_disable(rdev);
 497         return 0;
 498 }
 499
 500 void rs400_fini(struct radeon_device *rdev)
 501 {
 502         radeon_pm_fini(rdev);
 503         r100_cp_fini(rdev);
 504         radeon_wb_fini(rdev);
 505         radeon_ib_pool_fini(rdev);
 506         radeon_gem_fini(rdev);
 507         rs400_gart_fini(rdev);
 508         radeon_irq_kms_fini(rdev);
 509         radeon_fence_driver_fini(rdev);
 510         radeon_bo_fini(rdev);
 511         radeon_atombios_fini(rdev);
 512         kfree(rdev->bios);
 513         rdev->bios = NULL;
 514 }
 515
 516 int rs400_init(struct radeon_device *rdev)
 517 {
 518         int r;
 519
 520         /* Disable VGA */
 521         r100_vga_render_disable(rdev);
 522         /* Initialize scratch registers */
 523         radeon_scratch_init(rdev);
 524         /* Initialize surface registers */
 525         radeon_surface_init(rdev);
 526         /* TODO: disable VGA need to use VGA request */
 527         /* restore some register to sane defaults */
 528         r100_restore_sanity(rdev);
 529         /* BIOS*/
 530         if (!radeon_get_bios(rdev)) {
 531                 if (ASIC_IS_AVIVO(rdev))
 532                         return -EINVAL;
 533         }
 534         if (rdev->is_atom_bios) {
 535                 dev_err(rdev->dev, "Expecting combios for RS400/RS480 GPU\n");
 536                 return -EINVAL;
 537         } else {
 538                 r = radeon_combios_init(rdev);
 539                 if (r)
 540                         return r;
 541         }
 542         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 543         if (radeon_asic_reset(rdev)) {
 544                 dev_warn(rdev->dev,
 545                         "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 546                         RREG32(R_000E40_RBBM_STATUS),
 547                         RREG32(R_0007C0_CP_STAT));
 548         }
 549         /* check if cards are posted or not */
 550         if (radeon_boot_test_post_card(rdev) == false)
 551                 return -EINVAL;
 552
 553         /* Initialize clocks */
 554         radeon_get_clock_info(rdev->ddev);
 555         /* initialize memory controller */
 556         rs400_mc_init(rdev);
 557         /* Fence driver */
 558         r = radeon_fence_driver_init(rdev);
 559         if (r)
 560                 return r;
 561         /* Memory manager */
 562         r = radeon_bo_init(rdev);
 563         if (r)
 564                 return r;
 565         r = rs400_gart_init(rdev);
 566         if (r)
 567                 return r;
 568         r300_set_reg_safe(rdev);
 569
 570         /* Initialize power management */
 571         radeon_pm_init(rdev);
 572
 573         rdev->accel_working = true;
 574         r = rs400_startup(rdev);
 575         if (r) {
 576                 /* Somethings want wront with the accel init stop accel */
 577                 dev_err(rdev->dev, "Disabling GPU acceleration\n");
 578                 r100_cp_fini(rdev);
 579                 radeon_wb_fini(rdev);
 580                 radeon_ib_pool_fini(rdev);
 581                 rs400_gart_fini(rdev);
 582                 radeon_irq_kms_fini(rdev);
 583                 rdev->accel_working = false;
 584         }
 585         return 0;
 586 }