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 */
36static int rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev);
37
38void 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
60void 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
76int 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
107int 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
194void 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
204void 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
215uint64_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
230void 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
237int 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
253static 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 pr_warn("rs400: Failed to wait MC idle while programming pipes. Bad things might happen. %08x\n",
259 RREG32(RADEON_MC_STATUS));
260 }
261}
262
263static 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
280uint32_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
293void 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)
305static 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
374static struct drm_info_list rs400_gart_info_list[] = {
375 {"rs400_gart_info", rs400_debugfs_gart_info, 0, NULL},
376};
377#endif
378
379static 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
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 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}
587