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 <drm/drmP.h>
  30 #include "radeon.h"
  31 #include "radeon_asic.h"
  32 #include "rs400d.h"
  33
  34 /* This files gather functions specifics to : rs400,rs480 */
  35 static int rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev);
  36
  37 void rs400_gart_adjust_size(struct radeon_device *rdev)
  38 {
  39         /* Check gart size */
  40         switch (rdev->mc.gtt_size/(1024*1024)) {
  41         case 32:
  42         case 64:
  43         case 128:
  44         case 256:
  45         case 512:
  46         case 1024:
  47         case 2048:
  48                 break;
  49         default:
  50                 DRM_ERROR("Unable to use IGP GART size %uM\n",
  51                           (unsigned)(rdev->mc.gtt_size >> 20));
  52                 DRM_ERROR("Valid GART size for IGP are 32M,64M,128M,256M,512M,1G,2G\n");
  53                 DRM_ERROR("Forcing to 32M GART size\n");
  54                 rdev->mc.gtt_size = 32 * 1024 * 1024;
  55                 return;
  56         }
  57         if (rdev->family == CHIP_RS400 || rdev->family == CHIP_RS480) {
  58                 /* FIXME: RS400 & RS480 seems to have issue with GART size
  59                  * if 4G of system memory (needs more testing) */
  60                 rdev->mc.gtt_size = 32 * 1024 * 1024;
  61                 DRM_ERROR("Forcing to 32M GART size (because of ASIC bug ?)\n");
  62         }
  63 }
  64
  65 void rs400_gart_tlb_flush(struct radeon_device *rdev)
  66 {
  67         uint32_t tmp;
  68         unsigned int timeout = rdev->usec_timeout;
  69
  70         WREG32_MC(RS480_GART_CACHE_CNTRL, RS480_GART_CACHE_INVALIDATE);
  71         do {
  72                 tmp = RREG32_MC(RS480_GART_CACHE_CNTRL);
  73                 if ((tmp & RS480_GART_CACHE_INVALIDATE) == 0)
  74                         break;
  75                 DRM_UDELAY(1);
  76                 timeout--;
  77         } while (timeout > 0);
  78         WREG32_MC(RS480_GART_CACHE_CNTRL, 0);
  79 }
  80
  81 int rs400_gart_init(struct radeon_device *rdev)
  82 {
  83         int r;
  84
  85         if (rdev->gart.table.ram.ptr) {
  86                 WARN(1, "RS400 GART already initialized.\n");
  87                 return 0;
  88         }
  89         /* Check gart size */
  90         switch(rdev->mc.gtt_size / (1024 * 1024)) {
  91         case 32:
  92         case 64:
  93         case 128:
  94         case 256:
  95         case 512:
  96         case 1024:
  97         case 2048:
  98                 break;
  99         default:
 100                 return -EINVAL;
 101         }
 102         /* Initialize common gart structure */
 103         r = radeon_gart_init(rdev);
 104         if (r)
 105                 return r;
 106         if (rs400_debugfs_pcie_gart_info_init(rdev))
 107                 DRM_ERROR("Failed to register debugfs file for RS400 GART !\n");
 108         rdev->gart.table_size = rdev->gart.num_gpu_pages * 4;
 109         return radeon_gart_table_ram_alloc(rdev);
 110 }
 111
 112 int rs400_gart_enable(struct radeon_device *rdev)
 113 {
 114         uint32_t size_reg;
 115         uint32_t tmp;
 116
 117         radeon_gart_restore(rdev);
 118         tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
 119         tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS;
 120         WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
 121         /* Check gart size */
 122         switch(rdev->mc.gtt_size / (1024 * 1024)) {
 123         case 32:
 124                 size_reg = RS480_VA_SIZE_32MB;
 125                 break;
 126         case 64:
 127                 size_reg = RS480_VA_SIZE_64MB;
 128                 break;
 129         case 128:
 130                 size_reg = RS480_VA_SIZE_128MB;
 131                 break;
 132         case 256:
 133                 size_reg = RS480_VA_SIZE_256MB;
 134                 break;
 135         case 512:
 136                 size_reg = RS480_VA_SIZE_512MB;
 137                 break;
 138         case 1024:
 139                 size_reg = RS480_VA_SIZE_1GB;
 140                 break;
 141         case 2048:
 142                 size_reg = RS480_VA_SIZE_2GB;
 143                 break;
 144         default:
 145                 return -EINVAL;
 146         }
 147         /* It should be fine to program it to max value */
 148         if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) {
 149                 WREG32_MC(RS690_MCCFG_AGP_BASE, 0xFFFFFFFF);
 150                 WREG32_MC(RS690_MCCFG_AGP_BASE_2, 0);
 151         } else {
 152                 WREG32(RADEON_AGP_BASE, 0xFFFFFFFF);
 153                 WREG32(RS480_AGP_BASE_2, 0);
 154         }
 155         tmp = REG_SET(RS690_MC_AGP_TOP, rdev->mc.gtt_end >> 16);
 156         tmp |= REG_SET(RS690_MC_AGP_START, rdev->mc.gtt_start >> 16);
 157         if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
 158                 WREG32_MC(RS690_MCCFG_AGP_LOCATION, tmp);
 159                 tmp = RREG32(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS;
 160                 WREG32(RADEON_BUS_CNTL, tmp);
 161         } else {
 162                 WREG32(RADEON_MC_AGP_LOCATION, tmp);
 163                 tmp = RREG32(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
 164                 WREG32(RADEON_BUS_CNTL, tmp);
 165         }
 166         /* Table should be in 32bits address space so ignore bits above. */
 167         tmp = (u32)rdev->gart.table_addr & 0xfffff000;
 168         tmp |= (upper_32_bits(rdev->gart.table_addr) & 0xff) << 4;
 169
 170         WREG32_MC(RS480_GART_BASE, tmp);
 171         /* TODO: more tweaking here */
 172         WREG32_MC(RS480_GART_FEATURE_ID,
 173                   (RS480_TLB_ENABLE |
 174                    RS480_GTW_LAC_EN | RS480_1LEVEL_GART));
 175         /* Disable snooping */
 176         WREG32_MC(RS480_AGP_MODE_CNTL,
 177                   (1 << RS480_REQ_TYPE_SNOOP_SHIFT) | RS480_REQ_TYPE_SNOOP_DIS);
 178         /* Disable AGP mode */
 179         /* FIXME: according to doc we should set HIDE_MMCFG_BAR=0,
 180          * AGPMODE30=0 & AGP30ENHANCED=0 in NB_CNTL */
 181         if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
 182                 WREG32_MC(RS480_MC_MISC_CNTL,
 183                           (RS480_GART_INDEX_REG_EN | RS690_BLOCK_GFX_D3_EN));
 184         } else {
 185                 WREG32_MC(RS480_MC_MISC_CNTL, RS480_GART_INDEX_REG_EN);
 186         }
 187         /* Enable gart */
 188         WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN | size_reg));
 189         rs400_gart_tlb_flush(rdev);
 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 int rs400_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr)
 212 {
 213         uint32_t entry;
 214
 215         if (i < 0 || i > rdev->gart.num_gpu_pages) {
 216                 return -EINVAL;
 217         }
 218
 219         entry = (lower_32_bits(addr) & PAGE_MASK) |
 220                 ((upper_32_bits(addr) & 0xff) << 4) |
 221                 0xc;
 222         entry = cpu_to_le32(entry);
 223         rdev->gart.table.ram.ptr[i] = entry;
 224         return 0;
 225 }
 226
 227 int rs400_mc_wait_for_idle(struct radeon_device *rdev)
 228 {
 229         unsigned i;
 230         uint32_t tmp;
 231
 232         for (i = 0; i < rdev->usec_timeout; i++) {
 233                 /* read MC_STATUS */
 234                 tmp = RREG32(0x0150);
 235                 if (tmp & (1 << 2)) {
 236                         return 0;
 237                 }
 238                 DRM_UDELAY(1);
 239         }
 240         return -1;
 241 }
 242
 243 void rs400_gpu_init(struct radeon_device *rdev)
 244 {
 245         /* FIXME: HDP same place on rs400 ? */
 246         r100_hdp_reset(rdev);
 247         /* FIXME: is this correct ? */
 248         r420_pipes_init(rdev);
 249         if (rs400_mc_wait_for_idle(rdev)) {
 250                 printk(KERN_WARNING "rs400: Failed to wait MC idle while "
 251                        "programming pipes. Bad things might happen. %08x\n", RREG32(0x150));
 252         }
 253 }
 254
 255 void rs400_mc_init(struct radeon_device *rdev)
 256 {
 257         u64 base;
 258
 259         rs400_gart_adjust_size(rdev);
 260         rdev->mc.igp_sideport_enabled = radeon_combios_sideport_present(rdev);
 261         /* DDR for all card after R300 & IGP */
 262         rdev->mc.vram_is_ddr = true;
 263         rdev->mc.vram_width = 128;
 264         r100_vram_init_sizes(rdev);
 265         base = (RREG32(RADEON_NB_TOM) & 0xffff) << 16;
 266         radeon_vram_location(rdev, &rdev->mc, base);
 267         radeon_gtt_location(rdev, &rdev->mc);
 268         radeon_update_bandwidth_info(rdev);
 269 }
 270
 271 uint32_t rs400_mc_rreg(struct radeon_device *rdev, uint32_t reg)
 272 {
 273         uint32_t r;
 274
 275         WREG32(RS480_NB_MC_INDEX, reg & 0xff);
 276         r = RREG32(RS480_NB_MC_DATA);
 277         WREG32(RS480_NB_MC_INDEX, 0xff);
 278         return r;
 279 }
 280
 281 void rs400_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
 282 {
 283         WREG32(RS480_NB_MC_INDEX, ((reg) & 0xff) | RS480_NB_MC_IND_WR_EN);
 284         WREG32(RS480_NB_MC_DATA, (v));
 285         WREG32(RS480_NB_MC_INDEX, 0xff);
 286 }
 287
 288 #if defined(CONFIG_DEBUG_FS)
 289 static int rs400_debugfs_gart_info(struct seq_file *m, void *data)
 290 {
 291         struct drm_info_node *node = (struct drm_info_node *) m->private;
 292         struct drm_device *dev = node->minor->dev;
 293         struct radeon_device *rdev = dev->dev_private;
 294         uint32_t tmp;
 295
 296         tmp = RREG32(RADEON_HOST_PATH_CNTL);
 297         seq_printf(m, "HOST_PATH_CNTL 0x%08x\n", tmp);
 298         tmp = RREG32(RADEON_BUS_CNTL);
 299         seq_printf(m, "BUS_CNTL 0x%08x\n", tmp);
 300         tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
 301         seq_printf(m, "AIC_CTRL_SCRATCH 0x%08x\n", tmp);
 302         if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) {
 303                 tmp = RREG32_MC(RS690_MCCFG_AGP_BASE);
 304                 seq_printf(m, "MCCFG_AGP_BASE 0x%08x\n", tmp);
 305                 tmp = RREG32_MC(RS690_MCCFG_AGP_BASE_2);
 306                 seq_printf(m, "MCCFG_AGP_BASE_2 0x%08x\n", tmp);
 307                 tmp = RREG32_MC(RS690_MCCFG_AGP_LOCATION);
 308                 seq_printf(m, "MCCFG_AGP_LOCATION 0x%08x\n", tmp);
 309                 tmp = RREG32_MC(0x100);
 310                 seq_printf(m, "MCCFG_FB_LOCATION 0x%08x\n", tmp);
 311                 tmp = RREG32(0x134);
 312                 seq_printf(m, "HDP_FB_LOCATION 0x%08x\n", tmp);
 313         } else {
 314                 tmp = RREG32(RADEON_AGP_BASE);
 315                 seq_printf(m, "AGP_BASE 0x%08x\n", tmp);
 316                 tmp = RREG32(RS480_AGP_BASE_2);
 317                 seq_printf(m, "AGP_BASE_2 0x%08x\n", tmp);
 318                 tmp = RREG32(RADEON_MC_AGP_LOCATION);
 319                 seq_printf(m, "MC_AGP_LOCATION 0x%08x\n", tmp);
 320         }
 321         tmp = RREG32_MC(RS480_GART_BASE);
 322         seq_printf(m, "GART_BASE 0x%08x\n", tmp);
 323         tmp = RREG32_MC(RS480_GART_FEATURE_ID);
 324         seq_printf(m, "GART_FEATURE_ID 0x%08x\n", tmp);
 325         tmp = RREG32_MC(RS480_AGP_MODE_CNTL);
 326         seq_printf(m, "AGP_MODE_CONTROL 0x%08x\n", tmp);
 327         tmp = RREG32_MC(RS480_MC_MISC_CNTL);
 328         seq_printf(m, "MC_MISC_CNTL 0x%08x\n", tmp);
 329         tmp = RREG32_MC(0x5F);
 330         seq_printf(m, "MC_MISC_UMA_CNTL 0x%08x\n", tmp);
 331         tmp = RREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE);
 332         seq_printf(m, "AGP_ADDRESS_SPACE_SIZE 0x%08x\n", tmp);
 333         tmp = RREG32_MC(RS480_GART_CACHE_CNTRL);
 334         seq_printf(m, "GART_CACHE_CNTRL 0x%08x\n", tmp);
 335         tmp = RREG32_MC(0x3B);
 336         seq_printf(m, "MC_GART_ERROR_ADDRESS 0x%08x\n", tmp);
 337         tmp = RREG32_MC(0x3C);
 338         seq_printf(m, "MC_GART_ERROR_ADDRESS_HI 0x%08x\n", tmp);
 339         tmp = RREG32_MC(0x30);
 340         seq_printf(m, "GART_ERROR_0 0x%08x\n", tmp);
 341         tmp = RREG32_MC(0x31);
 342         seq_printf(m, "GART_ERROR_1 0x%08x\n", tmp);
 343         tmp = RREG32_MC(0x32);
 344         seq_printf(m, "GART_ERROR_2 0x%08x\n", tmp);
 345         tmp = RREG32_MC(0x33);
 346         seq_printf(m, "GART_ERROR_3 0x%08x\n", tmp);
 347         tmp = RREG32_MC(0x34);
 348         seq_printf(m, "GART_ERROR_4 0x%08x\n", tmp);
 349         tmp = RREG32_MC(0x35);
 350         seq_printf(m, "GART_ERROR_5 0x%08x\n", tmp);
 351         tmp = RREG32_MC(0x36);
 352         seq_printf(m, "GART_ERROR_6 0x%08x\n", tmp);
 353         tmp = RREG32_MC(0x37);
 354         seq_printf(m, "GART_ERROR_7 0x%08x\n", tmp);
 355         return 0;
 356 }
 357
 358 static struct drm_info_list rs400_gart_info_list[] = {
 359         {"rs400_gart_info", rs400_debugfs_gart_info, 0, NULL},
 360 };
 361 #endif
 362
 363 static int rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev)
 364 {
 365 #if defined(CONFIG_DEBUG_FS)
 366         return radeon_debugfs_add_files(rdev, rs400_gart_info_list, 1);
 367 #else
 368         return 0;
 369 #endif
 370 }
 371
 372 void rs400_mc_program(struct radeon_device *rdev)
 373 {
 374         struct r100_mc_save save;
 375
 376         /* Stops all mc clients */
 377         r100_mc_stop(rdev, &save);
 378
 379         /* Wait for mc idle */
 380         if (rs400_mc_wait_for_idle(rdev))
 381                 dev_warn(rdev->dev, "rs400: Wait MC idle timeout before updating MC.\n");
 382         WREG32(R_000148_MC_FB_LOCATION,
 383                 S_000148_MC_FB_START(rdev->mc.vram_start >> 16) |
 384                 S_000148_MC_FB_TOP(rdev->mc.vram_end >> 16));
 385
 386         r100_mc_resume(rdev, &save);
 387 }
 388
 389 static int rs400_startup(struct radeon_device *rdev)
 390 {
 391         int r;
 392
 393         r100_set_common_regs(rdev);
 394
 395         rs400_mc_program(rdev);
 396         /* Resume clock */
 397         r300_clock_startup(rdev);
 398         /* Initialize GPU configuration (# pipes, ...) */
 399         rs400_gpu_init(rdev);
 400         r100_enable_bm(rdev);
 401         /* Initialize GART (initialize after TTM so we can allocate
 402          * memory through TTM but finalize after TTM) */
 403         r = rs400_gart_enable(rdev);
 404         if (r)
 405                 return r;
 406         /* Enable IRQ */
 407         r100_irq_set(rdev);
 408         rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 409         /* 1M ring buffer */
 410         r = r100_cp_init(rdev, 1024 * 1024);
 411         if (r) {
 412                 dev_err(rdev->dev, "failled initializing CP (%d).\n", r);
 413                 return r;
 414         }
 415         r = r100_wb_init(rdev);
 416         if (r)
 417                 dev_err(rdev->dev, "failled initializing WB (%d).\n", r);
 418         r = r100_ib_init(rdev);
 419         if (r) {
 420                 dev_err(rdev->dev, "failled initializing IB (%d).\n", r);
 421                 return r;
 422         }
 423         return 0;
 424 }
 425
 426 int rs400_resume(struct radeon_device *rdev)
 427 {
 428         /* Make sur GART are not working */
 429         rs400_gart_disable(rdev);
 430         /* Resume clock before doing reset */
 431         r300_clock_startup(rdev);
 432         /* setup MC before calling post tables */
 433         rs400_mc_program(rdev);
 434         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 435         if (radeon_gpu_reset(rdev)) {
 436                 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 437                         RREG32(R_000E40_RBBM_STATUS),
 438                         RREG32(R_0007C0_CP_STAT));
 439         }
 440         /* post */
 441         radeon_combios_asic_init(rdev->ddev);
 442         /* Resume clock after posting */
 443         r300_clock_startup(rdev);
 444         /* Initialize surface registers */
 445         radeon_surface_init(rdev);
 446         return rs400_startup(rdev);
 447 }
 448
 449 int rs400_suspend(struct radeon_device *rdev)
 450 {
 451         r100_cp_disable(rdev);
 452         r100_wb_disable(rdev);
 453         r100_irq_disable(rdev);
 454         rs400_gart_disable(rdev);
 455         return 0;
 456 }
 457
 458 void rs400_fini(struct radeon_device *rdev)
 459 {
 460         radeon_pm_fini(rdev);
 461         r100_cp_fini(rdev);
 462         r100_wb_fini(rdev);
 463         r100_ib_fini(rdev);
 464         radeon_gem_fini(rdev);
 465         rs400_gart_fini(rdev);
 466         radeon_irq_kms_fini(rdev);
 467         radeon_fence_driver_fini(rdev);
 468         radeon_bo_fini(rdev);
 469         radeon_atombios_fini(rdev);
 470         kfree(rdev->bios);
 471         rdev->bios = NULL;
 472 }
 473
 474 int rs400_init(struct radeon_device *rdev)
 475 {
 476         int r;
 477
 478         /* Disable VGA */
 479         r100_vga_render_disable(rdev);
 480         /* Initialize scratch registers */
 481         radeon_scratch_init(rdev);
 482         /* Initialize surface registers */
 483         radeon_surface_init(rdev);
 484         /* TODO: disable VGA need to use VGA request */
 485         /* BIOS*/
 486         if (!radeon_get_bios(rdev)) {
 487                 if (ASIC_IS_AVIVO(rdev))
 488                         return -EINVAL;
 489         }
 490         if (rdev->is_atom_bios) {
 491                 dev_err(rdev->dev, "Expecting combios for RS400/RS480 GPU\n");
 492                 return -EINVAL;
 493         } else {
 494                 r = radeon_combios_init(rdev);
 495                 if (r)
 496                         return r;
 497         }
 498         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 499         if (radeon_gpu_reset(rdev)) {
 500                 dev_warn(rdev->dev,
 501                         "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 502                         RREG32(R_000E40_RBBM_STATUS),
 503                         RREG32(R_0007C0_CP_STAT));
 504         }
 505         /* check if cards are posted or not */
 506         if (radeon_boot_test_post_card(rdev) == false)
 507                 return -EINVAL;
 508
 509         /* Initialize clocks */
 510         radeon_get_clock_info(rdev->ddev);
 511         /* Initialize power management */
 512         radeon_pm_init(rdev);
 513         /* initialize memory controller */
 514         rs400_mc_init(rdev);
 515         /* Fence driver */
 516         r = radeon_fence_driver_init(rdev);
 517         if (r)
 518                 return r;
 519         r = radeon_irq_kms_init(rdev);
 520         if (r)
 521                 return r;
 522         /* Memory manager */
 523         r = radeon_bo_init(rdev);
 524         if (r)
 525                 return r;
 526         r = rs400_gart_init(rdev);
 527         if (r)
 528                 return r;
 529         r300_set_reg_safe(rdev);
 530         rdev->accel_working = true;
 531         r = rs400_startup(rdev);
 532         if (r) {
 533                 /* Somethings want wront with the accel init stop accel */
 534                 dev_err(rdev->dev, "Disabling GPU acceleration\n");
 535                 r100_cp_fini(rdev);
 536                 r100_wb_fini(rdev);
 537                 r100_ib_fini(rdev);
 538                 rs400_gart_fini(rdev);
 539                 radeon_irq_kms_fini(rdev);
 540                 rdev->accel_working = false;
 541         }
 542         return 0;
 543 }