SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/gpu/drm/radeon/rs600.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 /* RS600 / Radeon X1250/X1270 integrated GPU
  29  *
  30  * This file gather function specific to RS600 which is the IGP of
  31  * the X1250/X1270 family supporting intel CPU (while RS690/RS740
  32  * is the X1250/X1270 supporting AMD CPU). The display engine are
  33  * the avivo one, bios is an atombios, 3D block are the one of the
  34  * R4XX family. The GART is different from the RS400 one and is very
  35  * close to the one of the R600 family (R600 likely being an evolution
  36  * of the RS600 GART block).
  37  */
  38 #include "drmP.h"
  39 #include "radeon.h"
  40 #include "atom.h"
  41 #include "rs600d.h"
  42
  43 #include "rs600_reg_safe.h"
  44
  45 void rs600_gpu_init(struct radeon_device *rdev);
  46 int rs600_mc_wait_for_idle(struct radeon_device *rdev);
  47
  48 /*
  49  * GART.
  50  */
  51 void rs600_gart_tlb_flush(struct radeon_device *rdev)
  52 {
  53         uint32_t tmp;
  54
  55         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
  56         tmp &= C_000100_INVALIDATE_ALL_L1_TLBS & C_000100_INVALIDATE_L2_CACHE;
  57         WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
  58
  59         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
  60         tmp |= S_000100_INVALIDATE_ALL_L1_TLBS(1) & S_000100_INVALIDATE_L2_CACHE(1);
  61         WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
  62
  63         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
  64         tmp &= C_000100_INVALIDATE_ALL_L1_TLBS & C_000100_INVALIDATE_L2_CACHE;
  65         WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
  66         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
  67 }
  68
  69 int rs600_gart_init(struct radeon_device *rdev)
  70 {
  71         int r;
  72
  73         if (rdev->gart.table.vram.robj) {
  74                 WARN(1, "RS600 GART already initialized.\n");
  75                 return 0;
  76         }
  77         /* Initialize common gart structure */
  78         r = radeon_gart_init(rdev);
  79         if (r) {
  80                 return r;
  81         }
  82         rdev->gart.table_size = rdev->gart.num_gpu_pages * 8;
  83         return radeon_gart_table_vram_alloc(rdev);
  84 }
  85
  86 int rs600_gart_enable(struct radeon_device *rdev)
  87 {
  88         u32 tmp;
  89         int r, i;
  90
  91         if (rdev->gart.table.vram.robj == NULL) {
  92                 dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
  93                 return -EINVAL;
  94         }
  95         r = radeon_gart_table_vram_pin(rdev);
  96         if (r)
  97                 return r;
  98         /* Enable bus master */
  99         tmp = RREG32(R_00004C_BUS_CNTL) & C_00004C_BUS_MASTER_DIS;
 100         WREG32(R_00004C_BUS_CNTL, tmp);
 101         /* FIXME: setup default page */
 102         WREG32_MC(R_000100_MC_PT0_CNTL,
 103                   (S_000100_EFFECTIVE_L2_CACHE_SIZE(6) |
 104                    S_000100_EFFECTIVE_L2_QUEUE_SIZE(6)));
 105
 106         for (i = 0; i < 19; i++) {
 107                 WREG32_MC(R_00016C_MC_PT0_CLIENT0_CNTL + i,
 108                           S_00016C_ENABLE_TRANSLATION_MODE_OVERRIDE(1) |
 109                           S_00016C_SYSTEM_ACCESS_MODE_MASK(
 110                                   V_00016C_SYSTEM_ACCESS_MODE_NOT_IN_SYS) |
 111                           S_00016C_SYSTEM_APERTURE_UNMAPPED_ACCESS(
 112                                   V_00016C_SYSTEM_APERTURE_UNMAPPED_PASSTHROUGH) |
 113                           S_00016C_EFFECTIVE_L1_CACHE_SIZE(3) |
 114                           S_00016C_ENABLE_FRAGMENT_PROCESSING(1) |
 115                           S_00016C_EFFECTIVE_L1_QUEUE_SIZE(3));
 116         }
 117         /* enable first context */
 118         WREG32_MC(R_000102_MC_PT0_CONTEXT0_CNTL,
 119                   S_000102_ENABLE_PAGE_TABLE(1) |
 120                   S_000102_PAGE_TABLE_DEPTH(V_000102_PAGE_TABLE_FLAT));
 121
 122         /* disable all other contexts */
 123         for (i = 1; i < 8; i++)
 124                 WREG32_MC(R_000102_MC_PT0_CONTEXT0_CNTL + i, 0);
 125
 126         /* setup the page table */
 127         WREG32_MC(R_00012C_MC_PT0_CONTEXT0_FLAT_BASE_ADDR,
 128                   rdev->gart.table_addr);
 129         WREG32_MC(R_00013C_MC_PT0_CONTEXT0_FLAT_START_ADDR, rdev->mc.gtt_start);
 130         WREG32_MC(R_00014C_MC_PT0_CONTEXT0_FLAT_END_ADDR, rdev->mc.gtt_end);
 131         WREG32_MC(R_00011C_MC_PT0_CONTEXT0_DEFAULT_READ_ADDR, 0);
 132
 133         /* System context maps to VRAM space */
 134         WREG32_MC(R_000112_MC_PT0_SYSTEM_APERTURE_LOW_ADDR, rdev->mc.vram_start);
 135         WREG32_MC(R_000114_MC_PT0_SYSTEM_APERTURE_HIGH_ADDR, rdev->mc.vram_end);
 136
 137         /* enable page tables */
 138         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 139         WREG32_MC(R_000100_MC_PT0_CNTL, (tmp | S_000100_ENABLE_PT(1)));
 140         tmp = RREG32_MC(R_000009_MC_CNTL1);
 141         WREG32_MC(R_000009_MC_CNTL1, (tmp | S_000009_ENABLE_PAGE_TABLES(1)));
 142         rs600_gart_tlb_flush(rdev);
 143         rdev->gart.ready = true;
 144         return 0;
 145 }
 146
 147 void rs600_gart_disable(struct radeon_device *rdev)
 148 {
 149         u32 tmp;
 150         int r;
 151
 152         /* FIXME: disable out of gart access */
 153         WREG32_MC(R_000100_MC_PT0_CNTL, 0);
 154         tmp = RREG32_MC(R_000009_MC_CNTL1);
 155         WREG32_MC(R_000009_MC_CNTL1, tmp & C_000009_ENABLE_PAGE_TABLES);
 156         if (rdev->gart.table.vram.robj) {
 157                 r = radeon_bo_reserve(rdev->gart.table.vram.robj, false);
 158                 if (r == 0) {
 159                         radeon_bo_kunmap(rdev->gart.table.vram.robj);
 160                         radeon_bo_unpin(rdev->gart.table.vram.robj);
 161                         radeon_bo_unreserve(rdev->gart.table.vram.robj);
 162                 }
 163         }
 164 }
 165
 166 void rs600_gart_fini(struct radeon_device *rdev)
 167 {
 168         rs600_gart_disable(rdev);
 169         radeon_gart_table_vram_free(rdev);
 170         radeon_gart_fini(rdev);
 171 }
 172
 173 #define R600_PTE_VALID     (1 << 0)
 174 #define R600_PTE_SYSTEM    (1 << 1)
 175 #define R600_PTE_SNOOPED   (1 << 2)
 176 #define R600_PTE_READABLE  (1 << 5)
 177 #define R600_PTE_WRITEABLE (1 << 6)
 178
 179 int rs600_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr)
 180 {
 181         void __iomem *ptr = (void *)rdev->gart.table.vram.ptr;
 182
 183         if (i < 0 || i > rdev->gart.num_gpu_pages) {
 184                 return -EINVAL;
 185         }
 186         addr = addr & 0xFFFFFFFFFFFFF000ULL;
 187         addr |= R600_PTE_VALID | R600_PTE_SYSTEM | R600_PTE_SNOOPED;
 188         addr |= R600_PTE_READABLE | R600_PTE_WRITEABLE;
 189         writeq(addr, ((void __iomem *)ptr) + (i * 8));
 190         return 0;
 191 }
 192
 193 int rs600_irq_set(struct radeon_device *rdev)
 194 {
 195         uint32_t tmp = 0;
 196         uint32_t mode_int = 0;
 197
 198         if (rdev->irq.sw_int) {
 199                 tmp |= S_000040_SW_INT_EN(1);
 200         }
 201         if (rdev->irq.crtc_vblank_int[0]) {
 202                 mode_int |= S_006540_D1MODE_VBLANK_INT_MASK(1);
 203         }
 204         if (rdev->irq.crtc_vblank_int[1]) {
 205                 mode_int |= S_006540_D2MODE_VBLANK_INT_MASK(1);
 206         }
 207         WREG32(R_000040_GEN_INT_CNTL, tmp);
 208         WREG32(R_006540_DxMODE_INT_MASK, mode_int);
 209         return 0;
 210 }
 211
 212 static inline uint32_t rs600_irq_ack(struct radeon_device *rdev, u32 *r500_disp_int)
 213 {
 214         uint32_t irqs = RREG32(R_000044_GEN_INT_STATUS);
 215         uint32_t irq_mask = ~C_000044_SW_INT;
 216
 217         if (G_000044_DISPLAY_INT_STAT(irqs)) {
 218                 *r500_disp_int = RREG32(R_007EDC_DISP_INTERRUPT_STATUS);
 219                 if (G_007EDC_LB_D1_VBLANK_INTERRUPT(*r500_disp_int)) {
 220                         WREG32(R_006534_D1MODE_VBLANK_STATUS,
 221                                 S_006534_D1MODE_VBLANK_ACK(1));
 222                 }
 223                 if (G_007EDC_LB_D2_VBLANK_INTERRUPT(*r500_disp_int)) {
 224                         WREG32(R_006D34_D2MODE_VBLANK_STATUS,
 225                                 S_006D34_D2MODE_VBLANK_ACK(1));
 226                 }
 227         } else {
 228                 *r500_disp_int = 0;
 229         }
 230
 231         if (irqs) {
 232                 WREG32(R_000044_GEN_INT_STATUS, irqs);
 233         }
 234         return irqs & irq_mask;
 235 }
 236
 237 void rs600_irq_disable(struct radeon_device *rdev)
 238 {
 239         u32 tmp;
 240
 241         WREG32(R_000040_GEN_INT_CNTL, 0);
 242         WREG32(R_006540_DxMODE_INT_MASK, 0);
 243         /* Wait and acknowledge irq */
 244         mdelay(1);
 245         rs600_irq_ack(rdev, &tmp);
 246 }
 247
 248 int rs600_irq_process(struct radeon_device *rdev)
 249 {
 250         uint32_t status, msi_rearm;
 251         uint32_t r500_disp_int;
 252
 253         status = rs600_irq_ack(rdev, &r500_disp_int);
 254         if (!status && !r500_disp_int) {
 255                 return IRQ_NONE;
 256         }
 257         while (status || r500_disp_int) {
 258                 /* SW interrupt */
 259                 if (G_000040_SW_INT_EN(status))
 260                         radeon_fence_process(rdev);
 261                 /* Vertical blank interrupts */
 262                 if (G_007EDC_LB_D1_VBLANK_INTERRUPT(r500_disp_int))
 263                         drm_handle_vblank(rdev->ddev, 0);
 264                 if (G_007EDC_LB_D2_VBLANK_INTERRUPT(r500_disp_int))
 265                         drm_handle_vblank(rdev->ddev, 1);
 266                 status = rs600_irq_ack(rdev, &r500_disp_int);
 267         }
 268         if (rdev->msi_enabled) {
 269                 switch (rdev->family) {
 270                 case CHIP_RS600:
 271                 case CHIP_RS690:
 272                 case CHIP_RS740:
 273                         msi_rearm = RREG32(RADEON_BUS_CNTL) & ~RS600_MSI_REARM;
 274                         WREG32(RADEON_BUS_CNTL, msi_rearm);
 275                         WREG32(RADEON_BUS_CNTL, msi_rearm | RS600_MSI_REARM);
 276                         break;
 277                 default:
 278                         msi_rearm = RREG32(RADEON_MSI_REARM_EN) & ~RV370_MSI_REARM_EN;
 279                         WREG32(RADEON_MSI_REARM_EN, msi_rearm);
 280                         WREG32(RADEON_MSI_REARM_EN, msi_rearm | RV370_MSI_REARM_EN);
 281                         break;
 282                 }
 283         }
 284         return IRQ_HANDLED;
 285 }
 286
 287 u32 rs600_get_vblank_counter(struct radeon_device *rdev, int crtc)
 288 {
 289         if (crtc == 0)
 290                 return RREG32(R_0060A4_D1CRTC_STATUS_FRAME_COUNT);
 291         else
 292                 return RREG32(R_0068A4_D2CRTC_STATUS_FRAME_COUNT);
 293 }
 294
 295 int rs600_mc_wait_for_idle(struct radeon_device *rdev)
 296 {
 297         unsigned i;
 298
 299         for (i = 0; i < rdev->usec_timeout; i++) {
 300                 if (G_000000_MC_IDLE(RREG32_MC(R_000000_MC_STATUS)))
 301                         return 0;
 302                 udelay(1);
 303         }
 304         return -1;
 305 }
 306
 307 void rs600_gpu_init(struct radeon_device *rdev)
 308 {
 309         r100_hdp_reset(rdev);
 310         r420_pipes_init(rdev);
 311         /* Wait for mc idle */
 312         if (rs600_mc_wait_for_idle(rdev))
 313                 dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
 314 }
 315
 316 void rs600_vram_info(struct radeon_device *rdev)
 317 {
 318         rdev->mc.vram_is_ddr = true;
 319         rdev->mc.vram_width = 128;
 320
 321         rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
 322         rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
 323
 324         rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
 325         rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
 326
 327         if (rdev->mc.mc_vram_size > rdev->mc.aper_size)
 328                 rdev->mc.mc_vram_size = rdev->mc.aper_size;
 329
 330         if (rdev->mc.real_vram_size > rdev->mc.aper_size)
 331                 rdev->mc.real_vram_size = rdev->mc.aper_size;
 332 }
 333
 334 void rs600_bandwidth_update(struct radeon_device *rdev)
 335 {
 336         /* FIXME: implement, should this be like rs690 ? */
 337 }
 338
 339 uint32_t rs600_mc_rreg(struct radeon_device *rdev, uint32_t reg)
 340 {
 341         WREG32(R_000070_MC_IND_INDEX, S_000070_MC_IND_ADDR(reg) |
 342                 S_000070_MC_IND_CITF_ARB0(1));
 343         return RREG32(R_000074_MC_IND_DATA);
 344 }
 345
 346 void rs600_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
 347 {
 348         WREG32(R_000070_MC_IND_INDEX, S_000070_MC_IND_ADDR(reg) |
 349                 S_000070_MC_IND_CITF_ARB0(1) | S_000070_MC_IND_WR_EN(1));
 350         WREG32(R_000074_MC_IND_DATA, v);
 351 }
 352
 353 void rs600_debugfs(struct radeon_device *rdev)
 354 {
 355         if (r100_debugfs_rbbm_init(rdev))
 356                 DRM_ERROR("Failed to register debugfs file for RBBM !\n");
 357 }
 358
 359 void rs600_set_safe_registers(struct radeon_device *rdev)
 360 {
 361         rdev->config.r300.reg_safe_bm = rs600_reg_safe_bm;
 362         rdev->config.r300.reg_safe_bm_size = ARRAY_SIZE(rs600_reg_safe_bm);
 363 }
 364
 365 static void rs600_mc_program(struct radeon_device *rdev)
 366 {
 367         struct rv515_mc_save save;
 368
 369         /* Stops all mc clients */
 370         rv515_mc_stop(rdev, &save);
 371
 372         /* Wait for mc idle */
 373         if (rs600_mc_wait_for_idle(rdev))
 374                 dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
 375
 376         /* FIXME: What does AGP means for such chipset ? */
 377         WREG32_MC(R_000005_MC_AGP_LOCATION, 0x0FFFFFFF);
 378         WREG32_MC(R_000006_AGP_BASE, 0);
 379         WREG32_MC(R_000007_AGP_BASE_2, 0);
 380         /* Program MC */
 381         WREG32_MC(R_000004_MC_FB_LOCATION,
 382                         S_000004_MC_FB_START(rdev->mc.vram_start >> 16) |
 383                         S_000004_MC_FB_TOP(rdev->mc.vram_end >> 16));
 384         WREG32(R_000134_HDP_FB_LOCATION,
 385                 S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
 386
 387         rv515_mc_resume(rdev, &save);
 388 }
 389
 390 static int rs600_startup(struct radeon_device *rdev)
 391 {
 392         int r;
 393
 394         rs600_mc_program(rdev);
 395         /* Resume clock */
 396         rv515_clock_startup(rdev);
 397         /* Initialize GPU configuration (# pipes, ...) */
 398         rs600_gpu_init(rdev);
 399         /* Initialize GART (initialize after TTM so we can allocate
 400          * memory through TTM but finalize after TTM) */
 401         r = rs600_gart_enable(rdev);
 402         if (r)
 403                 return r;
 404         /* Enable IRQ */
 405         rs600_irq_set(rdev);
 406         /* 1M ring buffer */
 407         r = r100_cp_init(rdev, 1024 * 1024);
 408         if (r) {
 409                 dev_err(rdev->dev, "failled initializing CP (%d).\n", r);
 410                 return r;
 411         }
 412         r = r100_wb_init(rdev);
 413         if (r)
 414                 dev_err(rdev->dev, "failled initializing WB (%d).\n", r);
 415         r = r100_ib_init(rdev);
 416         if (r) {
 417                 dev_err(rdev->dev, "failled initializing IB (%d).\n", r);
 418                 return r;
 419         }
 420         return 0;
 421 }
 422
 423 int rs600_resume(struct radeon_device *rdev)
 424 {
 425         /* Make sur GART are not working */
 426         rs600_gart_disable(rdev);
 427         /* Resume clock before doing reset */
 428         rv515_clock_startup(rdev);
 429         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 430         if (radeon_gpu_reset(rdev)) {
 431                 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 432                         RREG32(R_000E40_RBBM_STATUS),
 433                         RREG32(R_0007C0_CP_STAT));
 434         }
 435         /* post */
 436         atom_asic_init(rdev->mode_info.atom_context);
 437         /* Resume clock after posting */
 438         rv515_clock_startup(rdev);
 439         return rs600_startup(rdev);
 440 }
 441
 442 int rs600_suspend(struct radeon_device *rdev)
 443 {
 444         r100_cp_disable(rdev);
 445         r100_wb_disable(rdev);
 446         rs600_irq_disable(rdev);
 447         rs600_gart_disable(rdev);
 448         return 0;
 449 }
 450
 451 void rs600_fini(struct radeon_device *rdev)
 452 {
 453         rs600_suspend(rdev);
 454         r100_cp_fini(rdev);
 455         r100_wb_fini(rdev);
 456         r100_ib_fini(rdev);
 457         radeon_gem_fini(rdev);
 458         rs600_gart_fini(rdev);
 459         radeon_irq_kms_fini(rdev);
 460         radeon_fence_driver_fini(rdev);
 461         radeon_bo_fini(rdev);
 462         radeon_atombios_fini(rdev);
 463         kfree(rdev->bios);
 464         rdev->bios = NULL;
 465 }
 466
 467 int rs600_init(struct radeon_device *rdev)
 468 {
 469         int r;
 470
 471         /* Disable VGA */
 472         rv515_vga_render_disable(rdev);
 473         /* Initialize scratch registers */
 474         radeon_scratch_init(rdev);
 475         /* Initialize surface registers */
 476         radeon_surface_init(rdev);
 477         /* BIOS */
 478         if (!radeon_get_bios(rdev)) {
 479                 if (ASIC_IS_AVIVO(rdev))
 480                         return -EINVAL;
 481         }
 482         if (rdev->is_atom_bios) {
 483                 r = radeon_atombios_init(rdev);
 484                 if (r)
 485                         return r;
 486         } else {
 487                 dev_err(rdev->dev, "Expecting atombios for RS600 GPU\n");
 488                 return -EINVAL;
 489         }
 490         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 491         if (radeon_gpu_reset(rdev)) {
 492                 dev_warn(rdev->dev,
 493                         "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 494                         RREG32(R_000E40_RBBM_STATUS),
 495                         RREG32(R_0007C0_CP_STAT));
 496         }
 497         /* check if cards are posted or not */
 498         if (radeon_boot_test_post_card(rdev) == false)
 499                 return -EINVAL;
 500
 501         /* Initialize clocks */
 502         radeon_get_clock_info(rdev->ddev);
 503         /* Initialize power management */
 504         radeon_pm_init(rdev);
 505         /* Get vram informations */
 506         rs600_vram_info(rdev);
 507         /* Initialize memory controller (also test AGP) */
 508         r = r420_mc_init(rdev);
 509         if (r)
 510                 return r;
 511         rs600_debugfs(rdev);
 512         /* Fence driver */
 513         r = radeon_fence_driver_init(rdev);
 514         if (r)
 515                 return r;
 516         r = radeon_irq_kms_init(rdev);
 517         if (r)
 518                 return r;
 519         /* Memory manager */
 520         r = radeon_bo_init(rdev);
 521         if (r)
 522                 return r;
 523         r = rs600_gart_init(rdev);
 524         if (r)
 525                 return r;
 526         rs600_set_safe_registers(rdev);
 527         rdev->accel_working = true;
 528         r = rs600_startup(rdev);
 529         if (r) {
 530                 /* Somethings want wront with the accel init stop accel */
 531                 dev_err(rdev->dev, "Disabling GPU acceleration\n");
 532                 rs600_suspend(rdev);
 533                 r100_cp_fini(rdev);
 534                 r100_wb_fini(rdev);
 535                 r100_ib_fini(rdev);
 536                 rs600_gart_fini(rdev);
 537                 radeon_irq_kms_fini(rdev);
 538                 rdev->accel_working = false;
 539         }
 540         return 0;
 541 }