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 29#include <linux/seq_file.h> 30#include <linux/slab.h> 31 32#include <drm/drm_device.h> 33#include <drm/drm_file.h> 34 35#include "radeon.h" 36#include "radeon_asic.h" 37#include "rs400d.h" 38 39/* This files gather functions specifics to : rs400,rs480 */ 40static void rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev); 41 42void rs400_gart_adjust_size(struct radeon_device *rdev) 43{ 44 /* Check gart size */ 45 switch (rdev->mc.gtt_size/(1024*1024)) { 46 case 32: 47 case 64: 48 case 128: 49 case 256: 50 case 512: 51 case 1024: 52 case 2048: 53 break; 54 default: 55 DRM_ERROR("Unable to use IGP GART size %uM\n", 56 (unsigned)(rdev->mc.gtt_size >> 20)); 57 DRM_ERROR("Valid GART size for IGP are 32M,64M,128M,256M,512M,1G,2G\n"); 58 DRM_ERROR("Forcing to 32M GART size\n"); 59 rdev->mc.gtt_size = 32 * 1024 * 1024; 60 return; 61 } 62} 63 64void rs400_gart_tlb_flush(struct radeon_device *rdev) 65{ 66 uint32_t tmp; 67 unsigned int timeout = rdev->usec_timeout; 68 69 WREG32_MC(RS480_GART_CACHE_CNTRL, RS480_GART_CACHE_INVALIDATE); 70 do { 71 tmp = RREG32_MC(RS480_GART_CACHE_CNTRL); 72 if ((tmp & RS480_GART_CACHE_INVALIDATE) == 0) 73 break; 74 udelay(1); 75 timeout--; 76 } while (timeout > 0); 77 WREG32_MC(RS480_GART_CACHE_CNTRL, 0); 78} 79 80int rs400_gart_init(struct radeon_device *rdev) 81{ 82 int r; 83 84 if (rdev->gart.ptr) { 85 WARN(1, "RS400 GART already initialized\n"); 86 return 0; 87 } 88 /* Check gart size */ 89 switch (rdev->mc.gtt_size / (1024 * 1024)) { 90 case 32: 91 case 64: 92 case 128: 93 case 256: 94 case 512: 95 case 1024: 96 case 2048: 97 break; 98 default: 99 return -EINVAL; 100 } 101 /* Initialize common gart structure */ 102 r = radeon_gart_init(rdev); 103 if (r) 104 return r; 105 rs400_debugfs_pcie_gart_info_init(rdev); 106 rdev->gart.table_size = rdev->gart.num_gpu_pages * 4; 107 return radeon_gart_table_ram_alloc(rdev); 108} 109 110int rs400_gart_enable(struct radeon_device *rdev) 111{ 112 uint32_t size_reg; 113 uint32_t tmp; 114 115 tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH); 116 tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS; 117 WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp); 118 /* Check gart size */ 119 switch (rdev->mc.gtt_size / (1024 * 1024)) { 120 case 32: 121 size_reg = RS480_VA_SIZE_32MB; 122 break; 123 case 64: 124 size_reg = RS480_VA_SIZE_64MB; 125 break; 126 case 128: 127 size_reg = RS480_VA_SIZE_128MB; 128 break; 129 case 256: 130 size_reg = RS480_VA_SIZE_256MB; 131 break; 132 case 512: 133 size_reg = RS480_VA_SIZE_512MB; 134 break; 135 case 1024: 136 size_reg = RS480_VA_SIZE_1GB; 137 break; 138 case 2048: 139 size_reg = RS480_VA_SIZE_2GB; 140 break; 141 default: 142 return -EINVAL; 143 } 144 /* It should be fine to program it to max value */ 145 if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) { 146 WREG32_MC(RS690_MCCFG_AGP_BASE, 0xFFFFFFFF); 147 WREG32_MC(RS690_MCCFG_AGP_BASE_2, 0); 148 } else { 149 WREG32(RADEON_AGP_BASE, 0xFFFFFFFF); 150 WREG32(RS480_AGP_BASE_2, 0); 151 } 152 tmp = REG_SET(RS690_MC_AGP_TOP, rdev->mc.gtt_end >> 16); 153 tmp |= REG_SET(RS690_MC_AGP_START, rdev->mc.gtt_start >> 16); 154 if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) { 155 WREG32_MC(RS690_MCCFG_AGP_LOCATION, tmp); 156 tmp = RREG32(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS; 157 WREG32(RADEON_BUS_CNTL, tmp); 158 } else { 159 WREG32(RADEON_MC_AGP_LOCATION, tmp); 160 tmp = RREG32(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS; 161 WREG32(RADEON_BUS_CNTL, tmp); 162 } 163 /* Table should be in 32bits address space so ignore bits above. */ 164 tmp = (u32)rdev->gart.table_addr & 0xfffff000; 165 tmp |= (upper_32_bits(rdev->gart.table_addr) & 0xff) << 4; 166 167 WREG32_MC(RS480_GART_BASE, tmp); 168 /* TODO: more tweaking here */ 169 WREG32_MC(RS480_GART_FEATURE_ID, 170 (RS480_TLB_ENABLE | 171 RS480_GTW_LAC_EN | RS480_1LEVEL_GART)); 172 /* Disable snooping */ 173 WREG32_MC(RS480_AGP_MODE_CNTL, 174 (1 << RS480_REQ_TYPE_SNOOP_SHIFT) | RS480_REQ_TYPE_SNOOP_DIS); 175 /* Disable AGP mode */ 176 /* FIXME: according to doc we should set HIDE_MMCFG_BAR=0, 177 * AGPMODE30=0 & AGP30ENHANCED=0 in NB_CNTL */ 178 if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) { 179 tmp = RREG32_MC(RS480_MC_MISC_CNTL); 180 tmp |= RS480_GART_INDEX_REG_EN | RS690_BLOCK_GFX_D3_EN; 181 WREG32_MC(RS480_MC_MISC_CNTL, tmp); 182 } else { 183 tmp = RREG32_MC(RS480_MC_MISC_CNTL); 184 tmp |= RS480_GART_INDEX_REG_EN; 185 WREG32_MC(RS480_MC_MISC_CNTL, tmp); 186 } 187 /* Enable gart */ 188 WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN | size_reg)); 189 rs400_gart_tlb_flush(rdev); 190 DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n", 191 (unsigned)(rdev->mc.gtt_size >> 20), 192 (unsigned long long)rdev->gart.table_addr); 193 rdev->gart.ready = true; 194 return 0; 195} 196 197void rs400_gart_disable(struct radeon_device *rdev) 198{ 199 uint32_t tmp; 200 201 tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH); 202 tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS; 203 WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp); 204 WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, 0); 205} 206 207void rs400_gart_fini(struct radeon_device *rdev) 208{ 209 radeon_gart_fini(rdev); 210 rs400_gart_disable(rdev); 211 radeon_gart_table_ram_free(rdev); 212} 213 214#define RS400_PTE_UNSNOOPED (1 << 0) 215#define RS400_PTE_WRITEABLE (1 << 2) 216#define RS400_PTE_READABLE (1 << 3) 217 218uint64_t rs400_gart_get_page_entry(uint64_t addr, uint32_t flags) 219{ 220 uint32_t entry; 221 222 entry = (lower_32_bits(addr) & PAGE_MASK) | 223 ((upper_32_bits(addr) & 0xff) << 4); 224 if (flags & RADEON_GART_PAGE_READ) 225 entry |= RS400_PTE_READABLE; 226 if (flags & RADEON_GART_PAGE_WRITE) 227 entry |= RS400_PTE_WRITEABLE; 228 if (!(flags & RADEON_GART_PAGE_SNOOP)) 229 entry |= RS400_PTE_UNSNOOPED; 230 return entry; 231} 232 233void rs400_gart_set_page(struct radeon_device *rdev, unsigned i, 234 uint64_t entry) 235{ 236 u32 *gtt = rdev->gart.ptr; 237 gtt[i] = cpu_to_le32(lower_32_bits(entry)); 238} 239 240int rs400_mc_wait_for_idle(struct radeon_device *rdev) 241{ 242 unsigned i; 243 uint32_t tmp; 244 245 for (i = 0; i < rdev->usec_timeout; i++) { 246 /* read MC_STATUS */ 247 tmp = RREG32(RADEON_MC_STATUS); 248 if (tmp & RADEON_MC_IDLE) { 249 return 0; 250 } 251 udelay(1); 252 } 253 return -1; 254} 255 256static void rs400_gpu_init(struct radeon_device *rdev) 257{ 258 /* FIXME: is this correct ? */ 259 r420_pipes_init(rdev); 260 if (rs400_mc_wait_for_idle(rdev)) { 261 pr_warn("rs400: Failed to wait MC idle while programming pipes. Bad things might happen. %08x\n", 262 RREG32(RADEON_MC_STATUS)); 263 } 264} 265 266static void rs400_mc_init(struct radeon_device *rdev) 267{ 268 u64 base; 269 270 rs400_gart_adjust_size(rdev); 271 rdev->mc.igp_sideport_enabled = radeon_combios_sideport_present(rdev); 272 /* DDR for all card after R300 & IGP */ 273 rdev->mc.vram_is_ddr = true; 274 rdev->mc.vram_width = 128; 275 r100_vram_init_sizes(rdev); 276 base = (RREG32(RADEON_NB_TOM) & 0xffff) << 16; 277 radeon_vram_location(rdev, &rdev->mc, base); 278 rdev->mc.gtt_base_align = rdev->mc.gtt_size - 1; 279 radeon_gtt_location(rdev, &rdev->mc); 280 radeon_update_bandwidth_info(rdev); 281} 282 283uint32_t rs400_mc_rreg(struct radeon_device *rdev, uint32_t reg) 284{ 285 unsigned long flags; 286 uint32_t r; 287 288 spin_lock_irqsave(&rdev->mc_idx_lock, flags); 289 WREG32(RS480_NB_MC_INDEX, reg & 0xff); 290 r = RREG32(RS480_NB_MC_DATA); 291 WREG32(RS480_NB_MC_INDEX, 0xff); 292 spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); 293 return r; 294} 295 296void rs400_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) 297{ 298 unsigned long flags; 299 300 spin_lock_irqsave(&rdev->mc_idx_lock, flags); 301 WREG32(RS480_NB_MC_INDEX, ((reg) & 0xff) | RS480_NB_MC_IND_WR_EN); 302 WREG32(RS480_NB_MC_DATA, (v)); 303 WREG32(RS480_NB_MC_INDEX, 0xff); 304 spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); 305} 306 307#if defined(CONFIG_DEBUG_FS) 308static int rs400_debugfs_gart_info_show(struct seq_file *m, void *unused) 309{ 310 struct radeon_device *rdev = m->private; 311 uint32_t tmp; 312 313 tmp = RREG32(RADEON_HOST_PATH_CNTL); 314 seq_printf(m, "HOST_PATH_CNTL 0x%08x\n", tmp); 315 tmp = RREG32(RADEON_BUS_CNTL); 316 seq_printf(m, "BUS_CNTL 0x%08x\n", tmp); 317 tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH); 318 seq_printf(m, "AIC_CTRL_SCRATCH 0x%08x\n", tmp); 319 if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) { 320 tmp = RREG32_MC(RS690_MCCFG_AGP_BASE); 321 seq_printf(m, "MCCFG_AGP_BASE 0x%08x\n", tmp); 322 tmp = RREG32_MC(RS690_MCCFG_AGP_BASE_2); 323 seq_printf(m, "MCCFG_AGP_BASE_2 0x%08x\n", tmp); 324 tmp = RREG32_MC(RS690_MCCFG_AGP_LOCATION); 325 seq_printf(m, "MCCFG_AGP_LOCATION 0x%08x\n", tmp); 326 tmp = RREG32_MC(RS690_MCCFG_FB_LOCATION); 327 seq_printf(m, "MCCFG_FB_LOCATION 0x%08x\n", tmp); 328 tmp = RREG32(RS690_HDP_FB_LOCATION); 329 seq_printf(m, "HDP_FB_LOCATION 0x%08x\n", tmp); 330 } else { 331 tmp = RREG32(RADEON_AGP_BASE); 332 seq_printf(m, "AGP_BASE 0x%08x\n", tmp); 333 tmp = RREG32(RS480_AGP_BASE_2); 334 seq_printf(m, "AGP_BASE_2 0x%08x\n", tmp); 335 tmp = RREG32(RADEON_MC_AGP_LOCATION); 336 seq_printf(m, "MC_AGP_LOCATION 0x%08x\n", tmp); 337 } 338 tmp = RREG32_MC(RS480_GART_BASE); 339 seq_printf(m, "GART_BASE 0x%08x\n", tmp); 340 tmp = RREG32_MC(RS480_GART_FEATURE_ID); 341 seq_printf(m, "GART_FEATURE_ID 0x%08x\n", tmp); 342 tmp = RREG32_MC(RS480_AGP_MODE_CNTL); 343 seq_printf(m, "AGP_MODE_CONTROL 0x%08x\n", tmp); 344 tmp = RREG32_MC(RS480_MC_MISC_CNTL); 345 seq_printf(m, "MC_MISC_CNTL 0x%08x\n", tmp); 346 tmp = RREG32_MC(0x5F); 347 seq_printf(m, "MC_MISC_UMA_CNTL 0x%08x\n", tmp); 348 tmp = RREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE); 349 seq_printf(m, "AGP_ADDRESS_SPACE_SIZE 0x%08x\n", tmp); 350 tmp = RREG32_MC(RS480_GART_CACHE_CNTRL); 351 seq_printf(m, "GART_CACHE_CNTRL 0x%08x\n", tmp); 352 tmp = RREG32_MC(0x3B); 353 seq_printf(m, "MC_GART_ERROR_ADDRESS 0x%08x\n", tmp); 354 tmp = RREG32_MC(0x3C); 355 seq_printf(m, "MC_GART_ERROR_ADDRESS_HI 0x%08x\n", tmp); 356 tmp = RREG32_MC(0x30); 357 seq_printf(m, "GART_ERROR_0 0x%08x\n", tmp); 358 tmp = RREG32_MC(0x31); 359 seq_printf(m, "GART_ERROR_1 0x%08x\n", tmp); 360 tmp = RREG32_MC(0x32); 361 seq_printf(m, "GART_ERROR_2 0x%08x\n", tmp); 362 tmp = RREG32_MC(0x33); 363 seq_printf(m, "GART_ERROR_3 0x%08x\n", tmp); 364 tmp = RREG32_MC(0x34); 365 seq_printf(m, "GART_ERROR_4 0x%08x\n", tmp); 366 tmp = RREG32_MC(0x35); 367 seq_printf(m, "GART_ERROR_5 0x%08x\n", tmp); 368 tmp = RREG32_MC(0x36); 369 seq_printf(m, "GART_ERROR_6 0x%08x\n", tmp); 370 tmp = RREG32_MC(0x37); 371 seq_printf(m, "GART_ERROR_7 0x%08x\n", tmp); 372 return 0; 373} 374 375DEFINE_SHOW_ATTRIBUTE(rs400_debugfs_gart_info); 376#endif 377 378static void rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev) 379{ 380#if defined(CONFIG_DEBUG_FS) 381 struct dentry *root = rdev->ddev->primary->debugfs_root; 382 383 debugfs_create_file("rs400_gart_info", 0444, root, rdev, 384 &rs400_debugfs_gart_info_fops); 385#endif 386} 387 388static 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 405static 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 459int 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 490int 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 500void 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 516int 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 radeon_fence_driver_init(rdev); 559 /* Memory manager */ 560 r = radeon_bo_init(rdev); 561 if (r) 562 return r; 563 r = rs400_gart_init(rdev); 564 if (r) 565 return r; 566 r300_set_reg_safe(rdev); 567 568 /* Initialize power management */ 569 radeon_pm_init(rdev); 570 571 rdev->accel_working = true; 572 r = rs400_startup(rdev); 573 if (r) { 574 /* Somethings want wront with the accel init stop accel */ 575 dev_err(rdev->dev, "Disabling GPU acceleration\n"); 576 r100_cp_fini(rdev); 577 radeon_wb_fini(rdev); 578 radeon_ib_pool_fini(rdev); 579 rs400_gart_fini(rdev); 580 radeon_irq_kms_fini(rdev); 581 rdev->accel_working = false; 582 } 583 return 0; 584} 585