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drm/nv50: fix display on 0x50
[deliverable/linux.git] / drivers / gpu / drm / nouveau / nouveau_bo.c
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 #include "nouveau_mm.h"
36 #include "nouveau_vm.h"
37
38 #include <linux/log2.h>
39 #include <linux/slab.h>
40
41 static void
42 nouveau_bo_del_ttm(struct ttm_buffer_object *bo)
43 {
44 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
45 struct drm_device *dev = dev_priv->dev;
46 struct nouveau_bo *nvbo = nouveau_bo(bo);
47
48 if (unlikely(nvbo->gem))
49 DRM_ERROR("bo %p still attached to GEM object\n", bo);
50
51 nv10_mem_put_tile_region(dev, nvbo->tile, NULL);
52 nouveau_vm_put(&nvbo->vma);
53 kfree(nvbo);
54 }
55
56 static void
57 nouveau_bo_fixup_align(struct nouveau_bo *nvbo, int *align, int *size,
58 int *page_shift)
59 {
60 struct drm_nouveau_private *dev_priv = nouveau_bdev(nvbo->bo.bdev);
61
62 if (dev_priv->card_type < NV_50) {
63 if (nvbo->tile_mode) {
64 if (dev_priv->chipset >= 0x40) {
65 *align = 65536;
66 *size = roundup(*size, 64 * nvbo->tile_mode);
67
68 } else if (dev_priv->chipset >= 0x30) {
69 *align = 32768;
70 *size = roundup(*size, 64 * nvbo->tile_mode);
71
72 } else if (dev_priv->chipset >= 0x20) {
73 *align = 16384;
74 *size = roundup(*size, 64 * nvbo->tile_mode);
75
76 } else if (dev_priv->chipset >= 0x10) {
77 *align = 16384;
78 *size = roundup(*size, 32 * nvbo->tile_mode);
79 }
80 }
81 } else {
82 if (likely(dev_priv->chan_vm)) {
83 if (*size > 256 * 1024)
84 *page_shift = dev_priv->chan_vm->lpg_shift;
85 else
86 *page_shift = dev_priv->chan_vm->spg_shift;
87 } else {
88 *page_shift = 12;
89 }
90
91 *size = roundup(*size, (1 << *page_shift));
92 *align = max((1 << *page_shift), *align);
93 }
94
95 *size = roundup(*size, PAGE_SIZE);
96 }
97
98 int
99 nouveau_bo_new(struct drm_device *dev, struct nouveau_channel *chan,
100 int size, int align, uint32_t flags, uint32_t tile_mode,
101 uint32_t tile_flags, bool no_vm, bool mappable,
102 struct nouveau_bo **pnvbo)
103 {
104 struct drm_nouveau_private *dev_priv = dev->dev_private;
105 struct nouveau_bo *nvbo;
106 int ret = 0, page_shift = 0;
107
108 nvbo = kzalloc(sizeof(struct nouveau_bo), GFP_KERNEL);
109 if (!nvbo)
110 return -ENOMEM;
111 INIT_LIST_HEAD(&nvbo->head);
112 INIT_LIST_HEAD(&nvbo->entry);
113 nvbo->mappable = mappable;
114 nvbo->no_vm = no_vm;
115 nvbo->tile_mode = tile_mode;
116 nvbo->tile_flags = tile_flags;
117 nvbo->bo.bdev = &dev_priv->ttm.bdev;
118
119 nouveau_bo_fixup_align(nvbo, &align, &size, &page_shift);
120 align >>= PAGE_SHIFT;
121
122 if (!nvbo->no_vm && dev_priv->chan_vm) {
123 ret = nouveau_vm_get(dev_priv->chan_vm, size, page_shift,
124 NV_MEM_ACCESS_RW, &nvbo->vma);
125 if (ret) {
126 kfree(nvbo);
127 return ret;
128 }
129 }
130
131 nouveau_bo_placement_set(nvbo, flags, 0);
132
133 nvbo->channel = chan;
134 ret = ttm_bo_init(&dev_priv->ttm.bdev, &nvbo->bo, size,
135 ttm_bo_type_device, &nvbo->placement, align, 0,
136 false, NULL, size, nouveau_bo_del_ttm);
137 if (ret) {
138 /* ttm will call nouveau_bo_del_ttm if it fails.. */
139 return ret;
140 }
141 nvbo->channel = NULL;
142
143 if (nvbo->vma.node) {
144 if (nvbo->bo.mem.mem_type == TTM_PL_VRAM)
145 nvbo->bo.offset = nvbo->vma.offset;
146 }
147
148 *pnvbo = nvbo;
149 return 0;
150 }
151
152 static void
153 set_placement_list(uint32_t *pl, unsigned *n, uint32_t type, uint32_t flags)
154 {
155 *n = 0;
156
157 if (type & TTM_PL_FLAG_VRAM)
158 pl[(*n)++] = TTM_PL_FLAG_VRAM | flags;
159 if (type & TTM_PL_FLAG_TT)
160 pl[(*n)++] = TTM_PL_FLAG_TT | flags;
161 if (type & TTM_PL_FLAG_SYSTEM)
162 pl[(*n)++] = TTM_PL_FLAG_SYSTEM | flags;
163 }
164
165 static void
166 set_placement_range(struct nouveau_bo *nvbo, uint32_t type)
167 {
168 struct drm_nouveau_private *dev_priv = nouveau_bdev(nvbo->bo.bdev);
169
170 if (dev_priv->card_type == NV_10 &&
171 nvbo->tile_mode && (type & TTM_PL_FLAG_VRAM)) {
172 /*
173 * Make sure that the color and depth buffers are handled
174 * by independent memory controller units. Up to a 9x
175 * speed up when alpha-blending and depth-test are enabled
176 * at the same time.
177 */
178 int vram_pages = dev_priv->vram_size >> PAGE_SHIFT;
179
180 if (nvbo->tile_flags & NOUVEAU_GEM_TILE_ZETA) {
181 nvbo->placement.fpfn = vram_pages / 2;
182 nvbo->placement.lpfn = ~0;
183 } else {
184 nvbo->placement.fpfn = 0;
185 nvbo->placement.lpfn = vram_pages / 2;
186 }
187 }
188 }
189
190 void
191 nouveau_bo_placement_set(struct nouveau_bo *nvbo, uint32_t type, uint32_t busy)
192 {
193 struct ttm_placement *pl = &nvbo->placement;
194 uint32_t flags = TTM_PL_MASK_CACHING |
195 (nvbo->pin_refcnt ? TTM_PL_FLAG_NO_EVICT : 0);
196
197 pl->placement = nvbo->placements;
198 set_placement_list(nvbo->placements, &pl->num_placement,
199 type, flags);
200
201 pl->busy_placement = nvbo->busy_placements;
202 set_placement_list(nvbo->busy_placements, &pl->num_busy_placement,
203 type | busy, flags);
204
205 set_placement_range(nvbo, type);
206 }
207
208 int
209 nouveau_bo_pin(struct nouveau_bo *nvbo, uint32_t memtype)
210 {
211 struct drm_nouveau_private *dev_priv = nouveau_bdev(nvbo->bo.bdev);
212 struct ttm_buffer_object *bo = &nvbo->bo;
213 int ret;
214
215 if (nvbo->pin_refcnt && !(memtype & (1 << bo->mem.mem_type))) {
216 NV_ERROR(nouveau_bdev(bo->bdev)->dev,
217 "bo %p pinned elsewhere: 0x%08x vs 0x%08x\n", bo,
218 1 << bo->mem.mem_type, memtype);
219 return -EINVAL;
220 }
221
222 if (nvbo->pin_refcnt++)
223 return 0;
224
225 ret = ttm_bo_reserve(bo, false, false, false, 0);
226 if (ret)
227 goto out;
228
229 nouveau_bo_placement_set(nvbo, memtype, 0);
230
231 ret = nouveau_bo_validate(nvbo, false, false, false);
232 if (ret == 0) {
233 switch (bo->mem.mem_type) {
234 case TTM_PL_VRAM:
235 dev_priv->fb_aper_free -= bo->mem.size;
236 break;
237 case TTM_PL_TT:
238 dev_priv->gart_info.aper_free -= bo->mem.size;
239 break;
240 default:
241 break;
242 }
243 }
244 ttm_bo_unreserve(bo);
245 out:
246 if (unlikely(ret))
247 nvbo->pin_refcnt--;
248 return ret;
249 }
250
251 int
252 nouveau_bo_unpin(struct nouveau_bo *nvbo)
253 {
254 struct drm_nouveau_private *dev_priv = nouveau_bdev(nvbo->bo.bdev);
255 struct ttm_buffer_object *bo = &nvbo->bo;
256 int ret;
257
258 if (--nvbo->pin_refcnt)
259 return 0;
260
261 ret = ttm_bo_reserve(bo, false, false, false, 0);
262 if (ret)
263 return ret;
264
265 nouveau_bo_placement_set(nvbo, bo->mem.placement, 0);
266
267 ret = nouveau_bo_validate(nvbo, false, false, false);
268 if (ret == 0) {
269 switch (bo->mem.mem_type) {
270 case TTM_PL_VRAM:
271 dev_priv->fb_aper_free += bo->mem.size;
272 break;
273 case TTM_PL_TT:
274 dev_priv->gart_info.aper_free += bo->mem.size;
275 break;
276 default:
277 break;
278 }
279 }
280
281 ttm_bo_unreserve(bo);
282 return ret;
283 }
284
285 int
286 nouveau_bo_map(struct nouveau_bo *nvbo)
287 {
288 int ret;
289
290 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0);
291 if (ret)
292 return ret;
293
294 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages, &nvbo->kmap);
295 ttm_bo_unreserve(&nvbo->bo);
296 return ret;
297 }
298
299 void
300 nouveau_bo_unmap(struct nouveau_bo *nvbo)
301 {
302 if (nvbo)
303 ttm_bo_kunmap(&nvbo->kmap);
304 }
305
306 int
307 nouveau_bo_validate(struct nouveau_bo *nvbo, bool interruptible,
308 bool no_wait_reserve, bool no_wait_gpu)
309 {
310 int ret;
311
312 ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement, interruptible,
313 no_wait_reserve, no_wait_gpu);
314 if (ret)
315 return ret;
316
317 if (nvbo->vma.node) {
318 if (nvbo->bo.mem.mem_type == TTM_PL_VRAM)
319 nvbo->bo.offset = nvbo->vma.offset;
320 }
321
322 return 0;
323 }
324
325 u16
326 nouveau_bo_rd16(struct nouveau_bo *nvbo, unsigned index)
327 {
328 bool is_iomem;
329 u16 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
330 mem = &mem[index];
331 if (is_iomem)
332 return ioread16_native((void __force __iomem *)mem);
333 else
334 return *mem;
335 }
336
337 void
338 nouveau_bo_wr16(struct nouveau_bo *nvbo, unsigned index, u16 val)
339 {
340 bool is_iomem;
341 u16 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
342 mem = &mem[index];
343 if (is_iomem)
344 iowrite16_native(val, (void __force __iomem *)mem);
345 else
346 *mem = val;
347 }
348
349 u32
350 nouveau_bo_rd32(struct nouveau_bo *nvbo, unsigned index)
351 {
352 bool is_iomem;
353 u32 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
354 mem = &mem[index];
355 if (is_iomem)
356 return ioread32_native((void __force __iomem *)mem);
357 else
358 return *mem;
359 }
360
361 void
362 nouveau_bo_wr32(struct nouveau_bo *nvbo, unsigned index, u32 val)
363 {
364 bool is_iomem;
365 u32 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
366 mem = &mem[index];
367 if (is_iomem)
368 iowrite32_native(val, (void __force __iomem *)mem);
369 else
370 *mem = val;
371 }
372
373 static struct ttm_backend *
374 nouveau_bo_create_ttm_backend_entry(struct ttm_bo_device *bdev)
375 {
376 struct drm_nouveau_private *dev_priv = nouveau_bdev(bdev);
377 struct drm_device *dev = dev_priv->dev;
378
379 switch (dev_priv->gart_info.type) {
380 #if __OS_HAS_AGP
381 case NOUVEAU_GART_AGP:
382 return ttm_agp_backend_init(bdev, dev->agp->bridge);
383 #endif
384 case NOUVEAU_GART_SGDMA:
385 return nouveau_sgdma_init_ttm(dev);
386 default:
387 NV_ERROR(dev, "Unknown GART type %d\n",
388 dev_priv->gart_info.type);
389 break;
390 }
391
392 return NULL;
393 }
394
395 static int
396 nouveau_bo_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
397 {
398 /* We'll do this from user space. */
399 return 0;
400 }
401
402 static int
403 nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
404 struct ttm_mem_type_manager *man)
405 {
406 struct drm_nouveau_private *dev_priv = nouveau_bdev(bdev);
407 struct drm_device *dev = dev_priv->dev;
408
409 switch (type) {
410 case TTM_PL_SYSTEM:
411 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
412 man->available_caching = TTM_PL_MASK_CACHING;
413 man->default_caching = TTM_PL_FLAG_CACHED;
414 break;
415 case TTM_PL_VRAM:
416 if (dev_priv->card_type >= NV_50) {
417 man->func = &nouveau_vram_manager;
418 man->io_reserve_fastpath = false;
419 man->use_io_reserve_lru = true;
420 } else {
421 man->func = &ttm_bo_manager_func;
422 }
423 man->flags = TTM_MEMTYPE_FLAG_FIXED |
424 TTM_MEMTYPE_FLAG_MAPPABLE;
425 man->available_caching = TTM_PL_FLAG_UNCACHED |
426 TTM_PL_FLAG_WC;
427 man->default_caching = TTM_PL_FLAG_WC;
428 break;
429 case TTM_PL_TT:
430 man->func = &ttm_bo_manager_func;
431 switch (dev_priv->gart_info.type) {
432 case NOUVEAU_GART_AGP:
433 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
434 man->available_caching = TTM_PL_FLAG_UNCACHED |
435 TTM_PL_FLAG_WC;
436 man->default_caching = TTM_PL_FLAG_WC;
437 break;
438 case NOUVEAU_GART_SGDMA:
439 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
440 TTM_MEMTYPE_FLAG_CMA;
441 man->available_caching = TTM_PL_MASK_CACHING;
442 man->default_caching = TTM_PL_FLAG_CACHED;
443 man->gpu_offset = dev_priv->gart_info.aper_base;
444 break;
445 default:
446 NV_ERROR(dev, "Unknown GART type: %d\n",
447 dev_priv->gart_info.type);
448 return -EINVAL;
449 }
450 break;
451 default:
452 NV_ERROR(dev, "Unsupported memory type %u\n", (unsigned)type);
453 return -EINVAL;
454 }
455 return 0;
456 }
457
458 static void
459 nouveau_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
460 {
461 struct nouveau_bo *nvbo = nouveau_bo(bo);
462
463 switch (bo->mem.mem_type) {
464 case TTM_PL_VRAM:
465 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_TT,
466 TTM_PL_FLAG_SYSTEM);
467 break;
468 default:
469 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_SYSTEM, 0);
470 break;
471 }
472
473 *pl = nvbo->placement;
474 }
475
476
477 /* GPU-assisted copy using NV_MEMORY_TO_MEMORY_FORMAT, can access
478 * TTM_PL_{VRAM,TT} directly.
479 */
480
481 static int
482 nouveau_bo_move_accel_cleanup(struct nouveau_channel *chan,
483 struct nouveau_bo *nvbo, bool evict,
484 bool no_wait_reserve, bool no_wait_gpu,
485 struct ttm_mem_reg *new_mem)
486 {
487 struct nouveau_fence *fence = NULL;
488 int ret;
489
490 ret = nouveau_fence_new(chan, &fence, true);
491 if (ret)
492 return ret;
493
494 ret = ttm_bo_move_accel_cleanup(&nvbo->bo, fence, NULL, evict,
495 no_wait_reserve, no_wait_gpu, new_mem);
496 nouveau_fence_unref(&fence);
497 return ret;
498 }
499
500 static inline uint32_t
501 nouveau_bo_mem_ctxdma(struct ttm_buffer_object *bo,
502 struct nouveau_channel *chan, struct ttm_mem_reg *mem)
503 {
504 struct nouveau_bo *nvbo = nouveau_bo(bo);
505
506 if (nvbo->no_vm) {
507 if (mem->mem_type == TTM_PL_TT)
508 return NvDmaGART;
509 return NvDmaVRAM;
510 }
511
512 if (mem->mem_type == TTM_PL_TT)
513 return chan->gart_handle;
514 return chan->vram_handle;
515 }
516
517 static int
518 nvc0_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
519 struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
520 {
521 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
522 struct nouveau_bo *nvbo = nouveau_bo(bo);
523 u64 src_offset = old_mem->start << PAGE_SHIFT;
524 u64 dst_offset = new_mem->start << PAGE_SHIFT;
525 u32 page_count = new_mem->num_pages;
526 int ret;
527
528 if (!nvbo->no_vm) {
529 if (old_mem->mem_type == TTM_PL_VRAM)
530 src_offset = nvbo->vma.offset;
531 else
532 src_offset += dev_priv->gart_info.aper_base;
533
534 if (new_mem->mem_type == TTM_PL_VRAM)
535 dst_offset = nvbo->vma.offset;
536 else
537 dst_offset += dev_priv->gart_info.aper_base;
538 }
539
540 page_count = new_mem->num_pages;
541 while (page_count) {
542 int line_count = (page_count > 2047) ? 2047 : page_count;
543
544 ret = RING_SPACE(chan, 12);
545 if (ret)
546 return ret;
547
548 BEGIN_NVC0(chan, 2, NvSubM2MF, 0x0238, 2);
549 OUT_RING (chan, upper_32_bits(dst_offset));
550 OUT_RING (chan, lower_32_bits(dst_offset));
551 BEGIN_NVC0(chan, 2, NvSubM2MF, 0x030c, 6);
552 OUT_RING (chan, upper_32_bits(src_offset));
553 OUT_RING (chan, lower_32_bits(src_offset));
554 OUT_RING (chan, PAGE_SIZE); /* src_pitch */
555 OUT_RING (chan, PAGE_SIZE); /* dst_pitch */
556 OUT_RING (chan, PAGE_SIZE); /* line_length */
557 OUT_RING (chan, line_count);
558 BEGIN_NVC0(chan, 2, NvSubM2MF, 0x0300, 1);
559 OUT_RING (chan, 0x00100110);
560
561 page_count -= line_count;
562 src_offset += (PAGE_SIZE * line_count);
563 dst_offset += (PAGE_SIZE * line_count);
564 }
565
566 return 0;
567 }
568
569 static int
570 nv50_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
571 struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
572 {
573 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
574 struct nouveau_bo *nvbo = nouveau_bo(bo);
575 u64 length = (new_mem->num_pages << PAGE_SHIFT);
576 u64 src_offset, dst_offset;
577 int ret;
578
579 src_offset = old_mem->start << PAGE_SHIFT;
580 dst_offset = new_mem->start << PAGE_SHIFT;
581 if (!nvbo->no_vm) {
582 if (old_mem->mem_type == TTM_PL_VRAM)
583 src_offset = nvbo->vma.offset;
584 else
585 src_offset += dev_priv->gart_info.aper_base;
586
587 if (new_mem->mem_type == TTM_PL_VRAM)
588 dst_offset = nvbo->vma.offset;
589 else
590 dst_offset += dev_priv->gart_info.aper_base;
591 }
592
593 ret = RING_SPACE(chan, 3);
594 if (ret)
595 return ret;
596
597 BEGIN_RING(chan, NvSubM2MF, 0x0184, 2);
598 OUT_RING (chan, nouveau_bo_mem_ctxdma(bo, chan, old_mem));
599 OUT_RING (chan, nouveau_bo_mem_ctxdma(bo, chan, new_mem));
600
601 while (length) {
602 u32 amount, stride, height;
603
604 amount = min(length, (u64)(4 * 1024 * 1024));
605 stride = 16 * 4;
606 height = amount / stride;
607
608 if (new_mem->mem_type == TTM_PL_VRAM &&
609 nouveau_bo_tile_layout(nvbo)) {
610 ret = RING_SPACE(chan, 8);
611 if (ret)
612 return ret;
613
614 BEGIN_RING(chan, NvSubM2MF, 0x0200, 7);
615 OUT_RING (chan, 0);
616 OUT_RING (chan, 0);
617 OUT_RING (chan, stride);
618 OUT_RING (chan, height);
619 OUT_RING (chan, 1);
620 OUT_RING (chan, 0);
621 OUT_RING (chan, 0);
622 } else {
623 ret = RING_SPACE(chan, 2);
624 if (ret)
625 return ret;
626
627 BEGIN_RING(chan, NvSubM2MF, 0x0200, 1);
628 OUT_RING (chan, 1);
629 }
630 if (old_mem->mem_type == TTM_PL_VRAM &&
631 nouveau_bo_tile_layout(nvbo)) {
632 ret = RING_SPACE(chan, 8);
633 if (ret)
634 return ret;
635
636 BEGIN_RING(chan, NvSubM2MF, 0x021c, 7);
637 OUT_RING (chan, 0);
638 OUT_RING (chan, 0);
639 OUT_RING (chan, stride);
640 OUT_RING (chan, height);
641 OUT_RING (chan, 1);
642 OUT_RING (chan, 0);
643 OUT_RING (chan, 0);
644 } else {
645 ret = RING_SPACE(chan, 2);
646 if (ret)
647 return ret;
648
649 BEGIN_RING(chan, NvSubM2MF, 0x021c, 1);
650 OUT_RING (chan, 1);
651 }
652
653 ret = RING_SPACE(chan, 14);
654 if (ret)
655 return ret;
656
657 BEGIN_RING(chan, NvSubM2MF, 0x0238, 2);
658 OUT_RING (chan, upper_32_bits(src_offset));
659 OUT_RING (chan, upper_32_bits(dst_offset));
660 BEGIN_RING(chan, NvSubM2MF, 0x030c, 8);
661 OUT_RING (chan, lower_32_bits(src_offset));
662 OUT_RING (chan, lower_32_bits(dst_offset));
663 OUT_RING (chan, stride);
664 OUT_RING (chan, stride);
665 OUT_RING (chan, stride);
666 OUT_RING (chan, height);
667 OUT_RING (chan, 0x00000101);
668 OUT_RING (chan, 0x00000000);
669 BEGIN_RING(chan, NvSubM2MF, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1);
670 OUT_RING (chan, 0);
671
672 length -= amount;
673 src_offset += amount;
674 dst_offset += amount;
675 }
676
677 return 0;
678 }
679
680 static int
681 nv04_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
682 struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
683 {
684 u32 src_offset = old_mem->start << PAGE_SHIFT;
685 u32 dst_offset = new_mem->start << PAGE_SHIFT;
686 u32 page_count = new_mem->num_pages;
687 int ret;
688
689 ret = RING_SPACE(chan, 3);
690 if (ret)
691 return ret;
692
693 BEGIN_RING(chan, NvSubM2MF, NV_MEMORY_TO_MEMORY_FORMAT_DMA_SOURCE, 2);
694 OUT_RING (chan, nouveau_bo_mem_ctxdma(bo, chan, old_mem));
695 OUT_RING (chan, nouveau_bo_mem_ctxdma(bo, chan, new_mem));
696
697 page_count = new_mem->num_pages;
698 while (page_count) {
699 int line_count = (page_count > 2047) ? 2047 : page_count;
700
701 ret = RING_SPACE(chan, 11);
702 if (ret)
703 return ret;
704
705 BEGIN_RING(chan, NvSubM2MF,
706 NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
707 OUT_RING (chan, src_offset);
708 OUT_RING (chan, dst_offset);
709 OUT_RING (chan, PAGE_SIZE); /* src_pitch */
710 OUT_RING (chan, PAGE_SIZE); /* dst_pitch */
711 OUT_RING (chan, PAGE_SIZE); /* line_length */
712 OUT_RING (chan, line_count);
713 OUT_RING (chan, 0x00000101);
714 OUT_RING (chan, 0x00000000);
715 BEGIN_RING(chan, NvSubM2MF, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1);
716 OUT_RING (chan, 0);
717
718 page_count -= line_count;
719 src_offset += (PAGE_SIZE * line_count);
720 dst_offset += (PAGE_SIZE * line_count);
721 }
722
723 return 0;
724 }
725
726 static int
727 nouveau_bo_move_m2mf(struct ttm_buffer_object *bo, int evict, bool intr,
728 bool no_wait_reserve, bool no_wait_gpu,
729 struct ttm_mem_reg *new_mem)
730 {
731 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
732 struct nouveau_bo *nvbo = nouveau_bo(bo);
733 struct nouveau_channel *chan;
734 int ret;
735
736 chan = nvbo->channel;
737 if (!chan || nvbo->no_vm) {
738 chan = dev_priv->channel;
739 mutex_lock_nested(&chan->mutex, NOUVEAU_KCHANNEL_MUTEX);
740 }
741
742 if (dev_priv->card_type < NV_50)
743 ret = nv04_bo_move_m2mf(chan, bo, &bo->mem, new_mem);
744 else
745 if (dev_priv->card_type < NV_C0)
746 ret = nv50_bo_move_m2mf(chan, bo, &bo->mem, new_mem);
747 else
748 ret = nvc0_bo_move_m2mf(chan, bo, &bo->mem, new_mem);
749 if (ret == 0) {
750 ret = nouveau_bo_move_accel_cleanup(chan, nvbo, evict,
751 no_wait_reserve,
752 no_wait_gpu, new_mem);
753 }
754
755 if (chan == dev_priv->channel)
756 mutex_unlock(&chan->mutex);
757 return ret;
758 }
759
760 static int
761 nouveau_bo_move_flipd(struct ttm_buffer_object *bo, bool evict, bool intr,
762 bool no_wait_reserve, bool no_wait_gpu,
763 struct ttm_mem_reg *new_mem)
764 {
765 u32 placement_memtype = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING;
766 struct ttm_placement placement;
767 struct ttm_mem_reg tmp_mem;
768 int ret;
769
770 placement.fpfn = placement.lpfn = 0;
771 placement.num_placement = placement.num_busy_placement = 1;
772 placement.placement = placement.busy_placement = &placement_memtype;
773
774 tmp_mem = *new_mem;
775 tmp_mem.mm_node = NULL;
776 ret = ttm_bo_mem_space(bo, &placement, &tmp_mem, intr, no_wait_reserve, no_wait_gpu);
777 if (ret)
778 return ret;
779
780 ret = ttm_tt_bind(bo->ttm, &tmp_mem);
781 if (ret)
782 goto out;
783
784 ret = nouveau_bo_move_m2mf(bo, true, intr, no_wait_reserve, no_wait_gpu, &tmp_mem);
785 if (ret)
786 goto out;
787
788 ret = ttm_bo_move_ttm(bo, evict, no_wait_reserve, no_wait_gpu, new_mem);
789 out:
790 ttm_bo_mem_put(bo, &tmp_mem);
791 return ret;
792 }
793
794 static int
795 nouveau_bo_move_flips(struct ttm_buffer_object *bo, bool evict, bool intr,
796 bool no_wait_reserve, bool no_wait_gpu,
797 struct ttm_mem_reg *new_mem)
798 {
799 u32 placement_memtype = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING;
800 struct ttm_placement placement;
801 struct ttm_mem_reg tmp_mem;
802 int ret;
803
804 placement.fpfn = placement.lpfn = 0;
805 placement.num_placement = placement.num_busy_placement = 1;
806 placement.placement = placement.busy_placement = &placement_memtype;
807
808 tmp_mem = *new_mem;
809 tmp_mem.mm_node = NULL;
810 ret = ttm_bo_mem_space(bo, &placement, &tmp_mem, intr, no_wait_reserve, no_wait_gpu);
811 if (ret)
812 return ret;
813
814 ret = ttm_bo_move_ttm(bo, evict, no_wait_reserve, no_wait_gpu, &tmp_mem);
815 if (ret)
816 goto out;
817
818 ret = nouveau_bo_move_m2mf(bo, evict, intr, no_wait_reserve, no_wait_gpu, new_mem);
819 if (ret)
820 goto out;
821
822 out:
823 ttm_bo_mem_put(bo, &tmp_mem);
824 return ret;
825 }
826
827 static int
828 nouveau_bo_vm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *new_mem,
829 struct nouveau_tile_reg **new_tile)
830 {
831 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
832 struct drm_device *dev = dev_priv->dev;
833 struct nouveau_bo *nvbo = nouveau_bo(bo);
834 uint64_t offset;
835
836 if (nvbo->no_vm || new_mem->mem_type != TTM_PL_VRAM) {
837 /* Nothing to do. */
838 *new_tile = NULL;
839 return 0;
840 }
841
842 offset = new_mem->start << PAGE_SHIFT;
843
844 if (dev_priv->chan_vm) {
845 nouveau_vm_map(&nvbo->vma, new_mem->mm_node);
846 } else if (dev_priv->card_type >= NV_10) {
847 *new_tile = nv10_mem_set_tiling(dev, offset, new_mem->size,
848 nvbo->tile_mode,
849 nvbo->tile_flags);
850 }
851
852 return 0;
853 }
854
855 static void
856 nouveau_bo_vm_cleanup(struct ttm_buffer_object *bo,
857 struct nouveau_tile_reg *new_tile,
858 struct nouveau_tile_reg **old_tile)
859 {
860 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
861 struct drm_device *dev = dev_priv->dev;
862
863 if (dev_priv->card_type >= NV_10 &&
864 dev_priv->card_type < NV_50) {
865 nv10_mem_put_tile_region(dev, *old_tile, bo->sync_obj);
866 *old_tile = new_tile;
867 }
868 }
869
870 static int
871 nouveau_bo_move(struct ttm_buffer_object *bo, bool evict, bool intr,
872 bool no_wait_reserve, bool no_wait_gpu,
873 struct ttm_mem_reg *new_mem)
874 {
875 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
876 struct nouveau_bo *nvbo = nouveau_bo(bo);
877 struct ttm_mem_reg *old_mem = &bo->mem;
878 struct nouveau_tile_reg *new_tile = NULL;
879 int ret = 0;
880
881 ret = nouveau_bo_vm_bind(bo, new_mem, &new_tile);
882 if (ret)
883 return ret;
884
885 /* Fake bo copy. */
886 if (old_mem->mem_type == TTM_PL_SYSTEM && !bo->ttm) {
887 BUG_ON(bo->mem.mm_node != NULL);
888 bo->mem = *new_mem;
889 new_mem->mm_node = NULL;
890 goto out;
891 }
892
893 /* Software copy if the card isn't up and running yet. */
894 if (!dev_priv->channel) {
895 ret = ttm_bo_move_memcpy(bo, evict, no_wait_reserve, no_wait_gpu, new_mem);
896 goto out;
897 }
898
899 /* Hardware assisted copy. */
900 if (new_mem->mem_type == TTM_PL_SYSTEM)
901 ret = nouveau_bo_move_flipd(bo, evict, intr, no_wait_reserve, no_wait_gpu, new_mem);
902 else if (old_mem->mem_type == TTM_PL_SYSTEM)
903 ret = nouveau_bo_move_flips(bo, evict, intr, no_wait_reserve, no_wait_gpu, new_mem);
904 else
905 ret = nouveau_bo_move_m2mf(bo, evict, intr, no_wait_reserve, no_wait_gpu, new_mem);
906
907 if (!ret)
908 goto out;
909
910 /* Fallback to software copy. */
911 ret = ttm_bo_move_memcpy(bo, evict, no_wait_reserve, no_wait_gpu, new_mem);
912
913 out:
914 if (ret)
915 nouveau_bo_vm_cleanup(bo, NULL, &new_tile);
916 else
917 nouveau_bo_vm_cleanup(bo, new_tile, &nvbo->tile);
918
919 return ret;
920 }
921
922 static int
923 nouveau_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp)
924 {
925 return 0;
926 }
927
928 static int
929 nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
930 {
931 struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
932 struct drm_nouveau_private *dev_priv = nouveau_bdev(bdev);
933 struct drm_device *dev = dev_priv->dev;
934 int ret;
935
936 mem->bus.addr = NULL;
937 mem->bus.offset = 0;
938 mem->bus.size = mem->num_pages << PAGE_SHIFT;
939 mem->bus.base = 0;
940 mem->bus.is_iomem = false;
941 if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
942 return -EINVAL;
943 switch (mem->mem_type) {
944 case TTM_PL_SYSTEM:
945 /* System memory */
946 return 0;
947 case TTM_PL_TT:
948 #if __OS_HAS_AGP
949 if (dev_priv->gart_info.type == NOUVEAU_GART_AGP) {
950 mem->bus.offset = mem->start << PAGE_SHIFT;
951 mem->bus.base = dev_priv->gart_info.aper_base;
952 mem->bus.is_iomem = true;
953 }
954 #endif
955 break;
956 case TTM_PL_VRAM:
957 {
958 struct nouveau_vram *vram = mem->mm_node;
959 u8 page_shift;
960
961 if (!dev_priv->bar1_vm) {
962 mem->bus.offset = mem->start << PAGE_SHIFT;
963 mem->bus.base = pci_resource_start(dev->pdev, 1);
964 mem->bus.is_iomem = true;
965 break;
966 }
967
968 if (dev_priv->card_type == NV_C0)
969 page_shift = vram->page_shift;
970 else
971 page_shift = 12;
972
973 ret = nouveau_vm_get(dev_priv->bar1_vm, mem->bus.size,
974 page_shift, NV_MEM_ACCESS_RW,
975 &vram->bar_vma);
976 if (ret)
977 return ret;
978
979 nouveau_vm_map(&vram->bar_vma, vram);
980 if (ret) {
981 nouveau_vm_put(&vram->bar_vma);
982 return ret;
983 }
984
985 mem->bus.offset = vram->bar_vma.offset;
986 if (dev_priv->card_type == NV_50) /*XXX*/
987 mem->bus.offset -= 0x0020000000ULL;
988 mem->bus.base = pci_resource_start(dev->pdev, 1);
989 mem->bus.is_iomem = true;
990 }
991 break;
992 default:
993 return -EINVAL;
994 }
995 return 0;
996 }
997
998 static void
999 nouveau_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
1000 {
1001 struct drm_nouveau_private *dev_priv = nouveau_bdev(bdev);
1002 struct nouveau_vram *vram = mem->mm_node;
1003
1004 if (!dev_priv->bar1_vm || mem->mem_type != TTM_PL_VRAM)
1005 return;
1006
1007 if (!vram->bar_vma.node)
1008 return;
1009
1010 nouveau_vm_unmap(&vram->bar_vma);
1011 nouveau_vm_put(&vram->bar_vma);
1012 }
1013
1014 static int
1015 nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo)
1016 {
1017 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
1018 struct nouveau_bo *nvbo = nouveau_bo(bo);
1019
1020 /* as long as the bo isn't in vram, and isn't tiled, we've got
1021 * nothing to do here.
1022 */
1023 if (bo->mem.mem_type != TTM_PL_VRAM) {
1024 if (dev_priv->card_type < NV_50 ||
1025 !nouveau_bo_tile_layout(nvbo))
1026 return 0;
1027 }
1028
1029 /* make sure bo is in mappable vram */
1030 if (bo->mem.start + bo->mem.num_pages < dev_priv->fb_mappable_pages)
1031 return 0;
1032
1033
1034 nvbo->placement.fpfn = 0;
1035 nvbo->placement.lpfn = dev_priv->fb_mappable_pages;
1036 nouveau_bo_placement_set(nvbo, TTM_PL_VRAM, 0);
1037 return nouveau_bo_validate(nvbo, false, true, false);
1038 }
1039
1040 void
1041 nouveau_bo_fence(struct nouveau_bo *nvbo, struct nouveau_fence *fence)
1042 {
1043 struct nouveau_fence *old_fence;
1044
1045 if (likely(fence))
1046 nouveau_fence_ref(fence);
1047
1048 spin_lock(&nvbo->bo.bdev->fence_lock);
1049 old_fence = nvbo->bo.sync_obj;
1050 nvbo->bo.sync_obj = fence;
1051 spin_unlock(&nvbo->bo.bdev->fence_lock);
1052
1053 nouveau_fence_unref(&old_fence);
1054 }
1055
1056 struct ttm_bo_driver nouveau_bo_driver = {
1057 .create_ttm_backend_entry = nouveau_bo_create_ttm_backend_entry,
1058 .invalidate_caches = nouveau_bo_invalidate_caches,
1059 .init_mem_type = nouveau_bo_init_mem_type,
1060 .evict_flags = nouveau_bo_evict_flags,
1061 .move = nouveau_bo_move,
1062 .verify_access = nouveau_bo_verify_access,
1063 .sync_obj_signaled = __nouveau_fence_signalled,
1064 .sync_obj_wait = __nouveau_fence_wait,
1065 .sync_obj_flush = __nouveau_fence_flush,
1066 .sync_obj_unref = __nouveau_fence_unref,
1067 .sync_obj_ref = __nouveau_fence_ref,
1068 .fault_reserve_notify = &nouveau_ttm_fault_reserve_notify,
1069 .io_mem_reserve = &nouveau_ttm_io_mem_reserve,
1070 .io_mem_free = &nouveau_ttm_io_mem_free,
1071 };
1072
Linux kernel - Deliverables
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