/drivers/gpu/drm/nouveau/nouveau_bo.c
C | 822 lines | 662 code | 113 blank | 47 comment | 111 complexity | 406d1a49b4a3ad2addb265077f498718 MD5 | raw file
Possible License(s): LGPL-2.0, AGPL-1.0, GPL-2.0
1/*
2 * Copyright 2007 Dave Airlied
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * 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 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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/*
25 * Authors: Dave Airlied <airlied@linux.ie>
26 * Ben Skeggs <darktama@iinet.net.au>
27 * Jeremy Kolb <jkolb@brandeis.edu>
28 */
29
30#include "drmP.h"
31
32#include "nouveau_drm.h"
33#include "nouveau_drv.h"
34#include "nouveau_dma.h"
35
36#include <linux/log2.h>
37#include <linux/slab.h>
38
39static void
40nouveau_bo_del_ttm(struct ttm_buffer_object *bo)
41{
42 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
43 struct drm_device *dev = dev_priv->dev;
44 struct nouveau_bo *nvbo = nouveau_bo(bo);
45
46 ttm_bo_kunmap(&nvbo->kmap);
47
48 if (unlikely(nvbo->gem))
49 DRM_ERROR("bo %p still attached to GEM object\n", bo);
50
51 if (nvbo->tile)
52 nv10_mem_expire_tiling(dev, nvbo->tile, NULL);
53
54 spin_lock(&dev_priv->ttm.bo_list_lock);
55 list_del(&nvbo->head);
56 spin_unlock(&dev_priv->ttm.bo_list_lock);
57 kfree(nvbo);
58}
59
60static void
61nouveau_bo_fixup_align(struct drm_device *dev,
62 uint32_t tile_mode, uint32_t tile_flags,
63 int *align, int *size)
64{
65 struct drm_nouveau_private *dev_priv = dev->dev_private;
66
67 /*
68 * Some of the tile_flags have a periodic structure of N*4096 bytes,
69 * align to to that as well as the page size. Align the size to the
70 * appropriate boundaries. This does imply that sizes are rounded up
71 * 3-7 pages, so be aware of this and do not waste memory by allocating
72 * many small buffers.
73 */
74 if (dev_priv->card_type == NV_50) {
75 uint32_t block_size = dev_priv->vram_size >> 15;
76 int i;
77
78 switch (tile_flags) {
79 case 0x1800:
80 case 0x2800:
81 case 0x4800:
82 case 0x7a00:
83 if (is_power_of_2(block_size)) {
84 for (i = 1; i < 10; i++) {
85 *align = 12 * i * block_size;
86 if (!(*align % 65536))
87 break;
88 }
89 } else {
90 for (i = 1; i < 10; i++) {
91 *align = 8 * i * block_size;
92 if (!(*align % 65536))
93 break;
94 }
95 }
96 *size = roundup(*size, *align);
97 break;
98 default:
99 break;
100 }
101
102 } else {
103 if (tile_mode) {
104 if (dev_priv->chipset >= 0x40) {
105 *align = 65536;
106 *size = roundup(*size, 64 * tile_mode);
107
108 } else if (dev_priv->chipset >= 0x30) {
109 *align = 32768;
110 *size = roundup(*size, 64 * tile_mode);
111
112 } else if (dev_priv->chipset >= 0x20) {
113 *align = 16384;
114 *size = roundup(*size, 64 * tile_mode);
115
116 } else if (dev_priv->chipset >= 0x10) {
117 *align = 16384;
118 *size = roundup(*size, 32 * tile_mode);
119 }
120 }
121 }
122
123 /* ALIGN works only on powers of two. */
124 *size = roundup(*size, PAGE_SIZE);
125
126 if (dev_priv->card_type == NV_50) {
127 *size = roundup(*size, 65536);
128 *align = max(65536, *align);
129 }
130}
131
132int
133nouveau_bo_new(struct drm_device *dev, struct nouveau_channel *chan,
134 int size, int align, uint32_t flags, uint32_t tile_mode,
135 uint32_t tile_flags, bool no_vm, bool mappable,
136 struct nouveau_bo **pnvbo)
137{
138 struct drm_nouveau_private *dev_priv = dev->dev_private;
139 struct nouveau_bo *nvbo;
140 int ret = 0;
141
142 nvbo = kzalloc(sizeof(struct nouveau_bo), GFP_KERNEL);
143 if (!nvbo)
144 return -ENOMEM;
145 INIT_LIST_HEAD(&nvbo->head);
146 INIT_LIST_HEAD(&nvbo->entry);
147 nvbo->mappable = mappable;
148 nvbo->no_vm = no_vm;
149 nvbo->tile_mode = tile_mode;
150 nvbo->tile_flags = tile_flags;
151
152 nouveau_bo_fixup_align(dev, tile_mode, tile_flags, &align, &size);
153 align >>= PAGE_SHIFT;
154
155 nvbo->placement.fpfn = 0;
156 nvbo->placement.lpfn = mappable ? dev_priv->fb_mappable_pages : 0;
157 nouveau_bo_placement_set(nvbo, flags, 0);
158
159 nvbo->channel = chan;
160 ret = ttm_bo_init(&dev_priv->ttm.bdev, &nvbo->bo, size,
161 ttm_bo_type_device, &nvbo->placement, align, 0,
162 false, NULL, size, nouveau_bo_del_ttm);
163 if (ret) {
164 /* ttm will call nouveau_bo_del_ttm if it fails.. */
165 return ret;
166 }
167 nvbo->channel = NULL;
168
169 spin_lock(&dev_priv->ttm.bo_list_lock);
170 list_add_tail(&nvbo->head, &dev_priv->ttm.bo_list);
171 spin_unlock(&dev_priv->ttm.bo_list_lock);
172 *pnvbo = nvbo;
173 return 0;
174}
175
176static void
177set_placement_list(uint32_t *pl, unsigned *n, uint32_t type, uint32_t flags)
178{
179 *n = 0;
180
181 if (type & TTM_PL_FLAG_VRAM)
182 pl[(*n)++] = TTM_PL_FLAG_VRAM | flags;
183 if (type & TTM_PL_FLAG_TT)
184 pl[(*n)++] = TTM_PL_FLAG_TT | flags;
185 if (type & TTM_PL_FLAG_SYSTEM)
186 pl[(*n)++] = TTM_PL_FLAG_SYSTEM | flags;
187}
188
189void
190nouveau_bo_placement_set(struct nouveau_bo *nvbo, uint32_t type, uint32_t busy)
191{
192 struct ttm_placement *pl = &nvbo->placement;
193 uint32_t flags = TTM_PL_MASK_CACHING |
194 (nvbo->pin_refcnt ? TTM_PL_FLAG_NO_EVICT : 0);
195
196 pl->placement = nvbo->placements;
197 set_placement_list(nvbo->placements, &pl->num_placement,
198 type, flags);
199
200 pl->busy_placement = nvbo->busy_placements;
201 set_placement_list(nvbo->busy_placements, &pl->num_busy_placement,
202 type | busy, flags);
203}
204
205int
206nouveau_bo_pin(struct nouveau_bo *nvbo, uint32_t memtype)
207{
208 struct drm_nouveau_private *dev_priv = nouveau_bdev(nvbo->bo.bdev);
209 struct ttm_buffer_object *bo = &nvbo->bo;
210 int ret;
211
212 if (nvbo->pin_refcnt && !(memtype & (1 << bo->mem.mem_type))) {
213 NV_ERROR(nouveau_bdev(bo->bdev)->dev,
214 "bo %p pinned elsewhere: 0x%08x vs 0x%08x\n", bo,
215 1 << bo->mem.mem_type, memtype);
216 return -EINVAL;
217 }
218
219 if (nvbo->pin_refcnt++)
220 return 0;
221
222 ret = ttm_bo_reserve(bo, false, false, false, 0);
223 if (ret)
224 goto out;
225
226 nouveau_bo_placement_set(nvbo, memtype, 0);
227
228 ret = ttm_bo_validate(bo, &nvbo->placement, false, false, false);
229 if (ret == 0) {
230 switch (bo->mem.mem_type) {
231 case TTM_PL_VRAM:
232 dev_priv->fb_aper_free -= bo->mem.size;
233 break;
234 case TTM_PL_TT:
235 dev_priv->gart_info.aper_free -= bo->mem.size;
236 break;
237 default:
238 break;
239 }
240 }
241 ttm_bo_unreserve(bo);
242out:
243 if (unlikely(ret))
244 nvbo->pin_refcnt--;
245 return ret;
246}
247
248int
249nouveau_bo_unpin(struct nouveau_bo *nvbo)
250{
251 struct drm_nouveau_private *dev_priv = nouveau_bdev(nvbo->bo.bdev);
252 struct ttm_buffer_object *bo = &nvbo->bo;
253 int ret;
254
255 if (--nvbo->pin_refcnt)
256 return 0;
257
258 ret = ttm_bo_reserve(bo, false, false, false, 0);
259 if (ret)
260 return ret;
261
262 nouveau_bo_placement_set(nvbo, bo->mem.placement, 0);
263
264 ret = ttm_bo_validate(bo, &nvbo->placement, false, false, false);
265 if (ret == 0) {
266 switch (bo->mem.mem_type) {
267 case TTM_PL_VRAM:
268 dev_priv->fb_aper_free += bo->mem.size;
269 break;
270 case TTM_PL_TT:
271 dev_priv->gart_info.aper_free += bo->mem.size;
272 break;
273 default:
274 break;
275 }
276 }
277
278 ttm_bo_unreserve(bo);
279 return ret;
280}
281
282int
283nouveau_bo_map(struct nouveau_bo *nvbo)
284{
285 int ret;
286
287 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0);
288 if (ret)
289 return ret;
290
291 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages, &nvbo->kmap);
292 ttm_bo_unreserve(&nvbo->bo);
293 return ret;
294}
295
296void
297nouveau_bo_unmap(struct nouveau_bo *nvbo)
298{
299 ttm_bo_kunmap(&nvbo->kmap);
300}
301
302u16
303nouveau_bo_rd16(struct nouveau_bo *nvbo, unsigned index)
304{
305 bool is_iomem;
306 u16 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
307 mem = &mem[index];
308 if (is_iomem)
309 return ioread16_native((void __force __iomem *)mem);
310 else
311 return *mem;
312}
313
314void
315nouveau_bo_wr16(struct nouveau_bo *nvbo, unsigned index, u16 val)
316{
317 bool is_iomem;
318 u16 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
319 mem = &mem[index];
320 if (is_iomem)
321 iowrite16_native(val, (void __force __iomem *)mem);
322 else
323 *mem = val;
324}
325
326u32
327nouveau_bo_rd32(struct nouveau_bo *nvbo, unsigned index)
328{
329 bool is_iomem;
330 u32 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
331 mem = &mem[index];
332 if (is_iomem)
333 return ioread32_native((void __force __iomem *)mem);
334 else
335 return *mem;
336}
337
338void
339nouveau_bo_wr32(struct nouveau_bo *nvbo, unsigned index, u32 val)
340{
341 bool is_iomem;
342 u32 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
343 mem = &mem[index];
344 if (is_iomem)
345 iowrite32_native(val, (void __force __iomem *)mem);
346 else
347 *mem = val;
348}
349
350static struct ttm_backend *
351nouveau_bo_create_ttm_backend_entry(struct ttm_bo_device *bdev)
352{
353 struct drm_nouveau_private *dev_priv = nouveau_bdev(bdev);
354 struct drm_device *dev = dev_priv->dev;
355
356 switch (dev_priv->gart_info.type) {
357#if __OS_HAS_AGP
358 case NOUVEAU_GART_AGP:
359 return ttm_agp_backend_init(bdev, dev->agp->bridge);
360#endif
361 case NOUVEAU_GART_SGDMA:
362 return nouveau_sgdma_init_ttm(dev);
363 default:
364 NV_ERROR(dev, "Unknown GART type %d\n",
365 dev_priv->gart_info.type);
366 break;
367 }
368
369 return NULL;
370}
371
372static int
373nouveau_bo_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
374{
375 /* We'll do this from user space. */
376 return 0;
377}
378
379static int
380nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
381 struct ttm_mem_type_manager *man)
382{
383 struct drm_nouveau_private *dev_priv = nouveau_bdev(bdev);
384 struct drm_device *dev = dev_priv->dev;
385
386 switch (type) {
387 case TTM_PL_SYSTEM:
388 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
389 man->available_caching = TTM_PL_MASK_CACHING;
390 man->default_caching = TTM_PL_FLAG_CACHED;
391 break;
392 case TTM_PL_VRAM:
393 man->flags = TTM_MEMTYPE_FLAG_FIXED |
394 TTM_MEMTYPE_FLAG_MAPPABLE;
395 man->available_caching = TTM_PL_FLAG_UNCACHED |
396 TTM_PL_FLAG_WC;
397 man->default_caching = TTM_PL_FLAG_WC;
398 man->gpu_offset = dev_priv->vm_vram_base;
399 break;
400 case TTM_PL_TT:
401 switch (dev_priv->gart_info.type) {
402 case NOUVEAU_GART_AGP:
403 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
404 man->available_caching = TTM_PL_FLAG_UNCACHED;
405 man->default_caching = TTM_PL_FLAG_UNCACHED;
406 break;
407 case NOUVEAU_GART_SGDMA:
408 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
409 TTM_MEMTYPE_FLAG_CMA;
410 man->available_caching = TTM_PL_MASK_CACHING;
411 man->default_caching = TTM_PL_FLAG_CACHED;
412 break;
413 default:
414 NV_ERROR(dev, "Unknown GART type: %d\n",
415 dev_priv->gart_info.type);
416 return -EINVAL;
417 }
418 man->gpu_offset = dev_priv->vm_gart_base;
419 break;
420 default:
421 NV_ERROR(dev, "Unsupported memory type %u\n", (unsigned)type);
422 return -EINVAL;
423 }
424 return 0;
425}
426
427static void
428nouveau_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
429{
430 struct nouveau_bo *nvbo = nouveau_bo(bo);
431
432 switch (bo->mem.mem_type) {
433 case TTM_PL_VRAM:
434 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_TT,
435 TTM_PL_FLAG_SYSTEM);
436 break;
437 default:
438 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_SYSTEM, 0);
439 break;
440 }
441
442 *pl = nvbo->placement;
443}
444
445
446/* GPU-assisted copy using NV_MEMORY_TO_MEMORY_FORMAT, can access
447 * TTM_PL_{VRAM,TT} directly.
448 */
449
450static int
451nouveau_bo_move_accel_cleanup(struct nouveau_channel *chan,
452 struct nouveau_bo *nvbo, bool evict,
453 bool no_wait_reserve, bool no_wait_gpu,
454 struct ttm_mem_reg *new_mem)
455{
456 struct nouveau_fence *fence = NULL;
457 int ret;
458
459 ret = nouveau_fence_new(chan, &fence, true);
460 if (ret)
461 return ret;
462
463 ret = ttm_bo_move_accel_cleanup(&nvbo->bo, fence, NULL,
464 evict, no_wait_reserve, no_wait_gpu, new_mem);
465 if (nvbo->channel && nvbo->channel != chan)
466 ret = nouveau_fence_wait(fence, NULL, false, false);
467 nouveau_fence_unref((void *)&fence);
468 return ret;
469}
470
471static inline uint32_t
472nouveau_bo_mem_ctxdma(struct nouveau_bo *nvbo, struct nouveau_channel *chan,
473 struct ttm_mem_reg *mem)
474{
475 if (chan == nouveau_bdev(nvbo->bo.bdev)->channel) {
476 if (mem->mem_type == TTM_PL_TT)
477 return NvDmaGART;
478 return NvDmaVRAM;
479 }
480
481 if (mem->mem_type == TTM_PL_TT)
482 return chan->gart_handle;
483 return chan->vram_handle;
484}
485
486static int
487nouveau_bo_move_m2mf(struct ttm_buffer_object *bo, int evict, bool intr,
488 bool no_wait_reserve, bool no_wait_gpu,
489 struct ttm_mem_reg *new_mem)
490{
491 struct nouveau_bo *nvbo = nouveau_bo(bo);
492 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
493 struct ttm_mem_reg *old_mem = &bo->mem;
494 struct nouveau_channel *chan;
495 uint64_t src_offset, dst_offset;
496 uint32_t page_count;
497 int ret;
498
499 chan = nvbo->channel;
500 if (!chan || nvbo->tile_flags || nvbo->no_vm)
501 chan = dev_priv->channel;
502
503 src_offset = old_mem->mm_node->start << PAGE_SHIFT;
504 dst_offset = new_mem->mm_node->start << PAGE_SHIFT;
505 if (chan != dev_priv->channel) {
506 if (old_mem->mem_type == TTM_PL_TT)
507 src_offset += dev_priv->vm_gart_base;
508 else
509 src_offset += dev_priv->vm_vram_base;
510
511 if (new_mem->mem_type == TTM_PL_TT)
512 dst_offset += dev_priv->vm_gart_base;
513 else
514 dst_offset += dev_priv->vm_vram_base;
515 }
516
517 ret = RING_SPACE(chan, 3);
518 if (ret)
519 return ret;
520 BEGIN_RING(chan, NvSubM2MF, NV_MEMORY_TO_MEMORY_FORMAT_DMA_SOURCE, 2);
521 OUT_RING(chan, nouveau_bo_mem_ctxdma(nvbo, chan, old_mem));
522 OUT_RING(chan, nouveau_bo_mem_ctxdma(nvbo, chan, new_mem));
523
524 if (dev_priv->card_type >= NV_50) {
525 ret = RING_SPACE(chan, 4);
526 if (ret)
527 return ret;
528 BEGIN_RING(chan, NvSubM2MF, 0x0200, 1);
529 OUT_RING(chan, 1);
530 BEGIN_RING(chan, NvSubM2MF, 0x021c, 1);
531 OUT_RING(chan, 1);
532 }
533
534 page_count = new_mem->num_pages;
535 while (page_count) {
536 int line_count = (page_count > 2047) ? 2047 : page_count;
537
538 if (dev_priv->card_type >= NV_50) {
539 ret = RING_SPACE(chan, 3);
540 if (ret)
541 return ret;
542 BEGIN_RING(chan, NvSubM2MF, 0x0238, 2);
543 OUT_RING(chan, upper_32_bits(src_offset));
544 OUT_RING(chan, upper_32_bits(dst_offset));
545 }
546 ret = RING_SPACE(chan, 11);
547 if (ret)
548 return ret;
549 BEGIN_RING(chan, NvSubM2MF,
550 NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
551 OUT_RING(chan, lower_32_bits(src_offset));
552 OUT_RING(chan, lower_32_bits(dst_offset));
553 OUT_RING(chan, PAGE_SIZE); /* src_pitch */
554 OUT_RING(chan, PAGE_SIZE); /* dst_pitch */
555 OUT_RING(chan, PAGE_SIZE); /* line_length */
556 OUT_RING(chan, line_count);
557 OUT_RING(chan, (1<<8)|(1<<0));
558 OUT_RING(chan, 0);
559 BEGIN_RING(chan, NvSubM2MF, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1);
560 OUT_RING(chan, 0);
561
562 page_count -= line_count;
563 src_offset += (PAGE_SIZE * line_count);
564 dst_offset += (PAGE_SIZE * line_count);
565 }
566
567 return nouveau_bo_move_accel_cleanup(chan, nvbo, evict, no_wait_reserve, no_wait_gpu, new_mem);
568}
569
570static int
571nouveau_bo_move_flipd(struct ttm_buffer_object *bo, bool evict, bool intr,
572 bool no_wait_reserve, bool no_wait_gpu,
573 struct ttm_mem_reg *new_mem)
574{
575 u32 placement_memtype = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING;
576 struct ttm_placement placement;
577 struct ttm_mem_reg tmp_mem;
578 int ret;
579
580 placement.fpfn = placement.lpfn = 0;
581 placement.num_placement = placement.num_busy_placement = 1;
582 placement.placement = placement.busy_placement = &placement_memtype;
583
584 tmp_mem = *new_mem;
585 tmp_mem.mm_node = NULL;
586 ret = ttm_bo_mem_space(bo, &placement, &tmp_mem, intr, no_wait_reserve, no_wait_gpu);
587 if (ret)
588 return ret;
589
590 ret = ttm_tt_bind(bo->ttm, &tmp_mem);
591 if (ret)
592 goto out;
593
594 ret = nouveau_bo_move_m2mf(bo, true, intr, no_wait_reserve, no_wait_gpu, &tmp_mem);
595 if (ret)
596 goto out;
597
598 ret = ttm_bo_move_ttm(bo, evict, no_wait_reserve, no_wait_gpu, new_mem);
599out:
600 if (tmp_mem.mm_node) {
601 spin_lock(&bo->bdev->glob->lru_lock);
602 drm_mm_put_block(tmp_mem.mm_node);
603 spin_unlock(&bo->bdev->glob->lru_lock);
604 }
605
606 return ret;
607}
608
609static int
610nouveau_bo_move_flips(struct ttm_buffer_object *bo, bool evict, bool intr,
611 bool no_wait_reserve, bool no_wait_gpu,
612 struct ttm_mem_reg *new_mem)
613{
614 u32 placement_memtype = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING;
615 struct ttm_placement placement;
616 struct ttm_mem_reg tmp_mem;
617 int ret;
618
619 placement.fpfn = placement.lpfn = 0;
620 placement.num_placement = placement.num_busy_placement = 1;
621 placement.placement = placement.busy_placement = &placement_memtype;
622
623 tmp_mem = *new_mem;
624 tmp_mem.mm_node = NULL;
625 ret = ttm_bo_mem_space(bo, &placement, &tmp_mem, intr, no_wait_reserve, no_wait_gpu);
626 if (ret)
627 return ret;
628
629 ret = ttm_bo_move_ttm(bo, evict, no_wait_reserve, no_wait_gpu, &tmp_mem);
630 if (ret)
631 goto out;
632
633 ret = nouveau_bo_move_m2mf(bo, evict, intr, no_wait_reserve, no_wait_gpu, new_mem);
634 if (ret)
635 goto out;
636
637out:
638 if (tmp_mem.mm_node) {
639 spin_lock(&bo->bdev->glob->lru_lock);
640 drm_mm_put_block(tmp_mem.mm_node);
641 spin_unlock(&bo->bdev->glob->lru_lock);
642 }
643
644 return ret;
645}
646
647static int
648nouveau_bo_vm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *new_mem,
649 struct nouveau_tile_reg **new_tile)
650{
651 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
652 struct drm_device *dev = dev_priv->dev;
653 struct nouveau_bo *nvbo = nouveau_bo(bo);
654 uint64_t offset;
655 int ret;
656
657 if (nvbo->no_vm || new_mem->mem_type != TTM_PL_VRAM) {
658 /* Nothing to do. */
659 *new_tile = NULL;
660 return 0;
661 }
662
663 offset = new_mem->mm_node->start << PAGE_SHIFT;
664
665 if (dev_priv->card_type == NV_50) {
666 ret = nv50_mem_vm_bind_linear(dev,
667 offset + dev_priv->vm_vram_base,
668 new_mem->size, nvbo->tile_flags,
669 offset);
670 if (ret)
671 return ret;
672
673 } else if (dev_priv->card_type >= NV_10) {
674 *new_tile = nv10_mem_set_tiling(dev, offset, new_mem->size,
675 nvbo->tile_mode);
676 }
677
678 return 0;
679}
680
681static void
682nouveau_bo_vm_cleanup(struct ttm_buffer_object *bo,
683 struct nouveau_tile_reg *new_tile,
684 struct nouveau_tile_reg **old_tile)
685{
686 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
687 struct drm_device *dev = dev_priv->dev;
688
689 if (dev_priv->card_type >= NV_10 &&
690 dev_priv->card_type < NV_50) {
691 if (*old_tile)
692 nv10_mem_expire_tiling(dev, *old_tile, bo->sync_obj);
693
694 *old_tile = new_tile;
695 }
696}
697
698static int
699nouveau_bo_move(struct ttm_buffer_object *bo, bool evict, bool intr,
700 bool no_wait_reserve, bool no_wait_gpu,
701 struct ttm_mem_reg *new_mem)
702{
703 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
704 struct nouveau_bo *nvbo = nouveau_bo(bo);
705 struct ttm_mem_reg *old_mem = &bo->mem;
706 struct nouveau_tile_reg *new_tile = NULL;
707 int ret = 0;
708
709 ret = nouveau_bo_vm_bind(bo, new_mem, &new_tile);
710 if (ret)
711 return ret;
712
713 /* Software copy if the card isn't up and running yet. */
714 if (dev_priv->init_state != NOUVEAU_CARD_INIT_DONE ||
715 !dev_priv->channel) {
716 ret = ttm_bo_move_memcpy(bo, evict, no_wait_reserve, no_wait_gpu, new_mem);
717 goto out;
718 }
719
720 /* Fake bo copy. */
721 if (old_mem->mem_type == TTM_PL_SYSTEM && !bo->ttm) {
722 BUG_ON(bo->mem.mm_node != NULL);
723 bo->mem = *new_mem;
724 new_mem->mm_node = NULL;
725 goto out;
726 }
727
728 /* Hardware assisted copy. */
729 if (new_mem->mem_type == TTM_PL_SYSTEM)
730 ret = nouveau_bo_move_flipd(bo, evict, intr, no_wait_reserve, no_wait_gpu, new_mem);
731 else if (old_mem->mem_type == TTM_PL_SYSTEM)
732 ret = nouveau_bo_move_flips(bo, evict, intr, no_wait_reserve, no_wait_gpu, new_mem);
733 else
734 ret = nouveau_bo_move_m2mf(bo, evict, intr, no_wait_reserve, no_wait_gpu, new_mem);
735
736 if (!ret)
737 goto out;
738
739 /* Fallback to software copy. */
740 ret = ttm_bo_move_memcpy(bo, evict, no_wait_reserve, no_wait_gpu, new_mem);
741
742out:
743 if (ret)
744 nouveau_bo_vm_cleanup(bo, NULL, &new_tile);
745 else
746 nouveau_bo_vm_cleanup(bo, new_tile, &nvbo->tile);
747
748 return ret;
749}
750
751static int
752nouveau_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp)
753{
754 return 0;
755}
756
757static int
758nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
759{
760 struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
761 struct drm_nouveau_private *dev_priv = nouveau_bdev(bdev);
762 struct drm_device *dev = dev_priv->dev;
763
764 mem->bus.addr = NULL;
765 mem->bus.offset = 0;
766 mem->bus.size = mem->num_pages << PAGE_SHIFT;
767 mem->bus.base = 0;
768 mem->bus.is_iomem = false;
769 if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
770 return -EINVAL;
771 switch (mem->mem_type) {
772 case TTM_PL_SYSTEM:
773 /* System memory */
774 return 0;
775 case TTM_PL_TT:
776#if __OS_HAS_AGP
777 if (dev_priv->gart_info.type == NOUVEAU_GART_AGP) {
778 mem->bus.offset = mem->mm_node->start << PAGE_SHIFT;
779 mem->bus.base = dev_priv->gart_info.aper_base;
780 mem->bus.is_iomem = true;
781 }
782#endif
783 break;
784 case TTM_PL_VRAM:
785 mem->bus.offset = mem->mm_node->start << PAGE_SHIFT;
786 mem->bus.base = drm_get_resource_start(dev, 1);
787 mem->bus.is_iomem = true;
788 break;
789 default:
790 return -EINVAL;
791 }
792 return 0;
793}
794
795static void
796nouveau_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
797{
798}
799
800static int
801nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo)
802{
803 return 0;
804}
805
806struct ttm_bo_driver nouveau_bo_driver = {
807 .create_ttm_backend_entry = nouveau_bo_create_ttm_backend_entry,
808 .invalidate_caches = nouveau_bo_invalidate_caches,
809 .init_mem_type = nouveau_bo_init_mem_type,
810 .evict_flags = nouveau_bo_evict_flags,
811 .move = nouveau_bo_move,
812 .verify_access = nouveau_bo_verify_access,
813 .sync_obj_signaled = nouveau_fence_signalled,
814 .sync_obj_wait = nouveau_fence_wait,
815 .sync_obj_flush = nouveau_fence_flush,
816 .sync_obj_unref = nouveau_fence_unref,
817 .sync_obj_ref = nouveau_fence_ref,
818 .fault_reserve_notify = &nouveau_ttm_fault_reserve_notify,
819 .io_mem_reserve = &nouveau_ttm_io_mem_reserve,
820 .io_mem_free = &nouveau_ttm_io_mem_free,
821};
822