]> Git Repo - linux.git/blob - drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[linux.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_gem.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 #include <linux/ktime.h>
29 #include <linux/pagemap.h>
30 #include <drm/drmP.h>
31 #include <drm/amdgpu_drm.h>
32 #include "amdgpu.h"
33 #include "amdgpu_display.h"
34
35 void amdgpu_gem_object_free(struct drm_gem_object *gobj)
36 {
37         struct amdgpu_bo *robj = gem_to_amdgpu_bo(gobj);
38
39         if (robj) {
40                 amdgpu_mn_unregister(robj);
41                 amdgpu_bo_unref(&robj);
42         }
43 }
44
45 int amdgpu_gem_object_create(struct amdgpu_device *adev, unsigned long size,
46                              int alignment, u32 initial_domain,
47                              u64 flags, enum ttm_bo_type type,
48                              struct reservation_object *resv,
49                              struct drm_gem_object **obj)
50 {
51         struct amdgpu_bo *bo;
52         struct amdgpu_bo_param bp;
53         int r;
54
55         memset(&bp, 0, sizeof(bp));
56         *obj = NULL;
57         /* At least align on page size */
58         if (alignment < PAGE_SIZE) {
59                 alignment = PAGE_SIZE;
60         }
61
62         bp.size = size;
63         bp.byte_align = alignment;
64         bp.type = type;
65         bp.resv = resv;
66         bp.preferred_domain = initial_domain;
67 retry:
68         bp.flags = flags;
69         bp.domain = initial_domain;
70         r = amdgpu_bo_create(adev, &bp, &bo);
71         if (r) {
72                 if (r != -ERESTARTSYS) {
73                         if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) {
74                                 flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
75                                 goto retry;
76                         }
77
78                         if (initial_domain == AMDGPU_GEM_DOMAIN_VRAM) {
79                                 initial_domain |= AMDGPU_GEM_DOMAIN_GTT;
80                                 goto retry;
81                         }
82                         DRM_DEBUG("Failed to allocate GEM object (%ld, %d, %u, %d)\n",
83                                   size, initial_domain, alignment, r);
84                 }
85                 return r;
86         }
87         *obj = &bo->gem_base;
88
89         return 0;
90 }
91
92 void amdgpu_gem_force_release(struct amdgpu_device *adev)
93 {
94         struct drm_device *ddev = adev->ddev;
95         struct drm_file *file;
96
97         mutex_lock(&ddev->filelist_mutex);
98
99         list_for_each_entry(file, &ddev->filelist, lhead) {
100                 struct drm_gem_object *gobj;
101                 int handle;
102
103                 WARN_ONCE(1, "Still active user space clients!\n");
104                 spin_lock(&file->table_lock);
105                 idr_for_each_entry(&file->object_idr, gobj, handle) {
106                         WARN_ONCE(1, "And also active allocations!\n");
107                         drm_gem_object_put_unlocked(gobj);
108                 }
109                 idr_destroy(&file->object_idr);
110                 spin_unlock(&file->table_lock);
111         }
112
113         mutex_unlock(&ddev->filelist_mutex);
114 }
115
116 /*
117  * Call from drm_gem_handle_create which appear in both new and open ioctl
118  * case.
119  */
120 int amdgpu_gem_object_open(struct drm_gem_object *obj,
121                            struct drm_file *file_priv)
122 {
123         struct amdgpu_bo *abo = gem_to_amdgpu_bo(obj);
124         struct amdgpu_device *adev = amdgpu_ttm_adev(abo->tbo.bdev);
125         struct amdgpu_fpriv *fpriv = file_priv->driver_priv;
126         struct amdgpu_vm *vm = &fpriv->vm;
127         struct amdgpu_bo_va *bo_va;
128         struct mm_struct *mm;
129         int r;
130
131         mm = amdgpu_ttm_tt_get_usermm(abo->tbo.ttm);
132         if (mm && mm != current->mm)
133                 return -EPERM;
134
135         if (abo->flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID &&
136             abo->tbo.resv != vm->root.base.bo->tbo.resv)
137                 return -EPERM;
138
139         r = amdgpu_bo_reserve(abo, false);
140         if (r)
141                 return r;
142
143         bo_va = amdgpu_vm_bo_find(vm, abo);
144         if (!bo_va) {
145                 bo_va = amdgpu_vm_bo_add(adev, vm, abo);
146         } else {
147                 ++bo_va->ref_count;
148         }
149         amdgpu_bo_unreserve(abo);
150         return 0;
151 }
152
153 void amdgpu_gem_object_close(struct drm_gem_object *obj,
154                              struct drm_file *file_priv)
155 {
156         struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
157         struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
158         struct amdgpu_fpriv *fpriv = file_priv->driver_priv;
159         struct amdgpu_vm *vm = &fpriv->vm;
160
161         struct amdgpu_bo_list_entry vm_pd;
162         struct list_head list, duplicates;
163         struct ttm_validate_buffer tv;
164         struct ww_acquire_ctx ticket;
165         struct amdgpu_bo_va *bo_va;
166         int r;
167
168         INIT_LIST_HEAD(&list);
169         INIT_LIST_HEAD(&duplicates);
170
171         tv.bo = &bo->tbo;
172         tv.shared = true;
173         list_add(&tv.head, &list);
174
175         amdgpu_vm_get_pd_bo(vm, &list, &vm_pd);
176
177         r = ttm_eu_reserve_buffers(&ticket, &list, false, &duplicates);
178         if (r) {
179                 dev_err(adev->dev, "leaking bo va because "
180                         "we fail to reserve bo (%d)\n", r);
181                 return;
182         }
183         bo_va = amdgpu_vm_bo_find(vm, bo);
184         if (bo_va && --bo_va->ref_count == 0) {
185                 amdgpu_vm_bo_rmv(adev, bo_va);
186
187                 if (amdgpu_vm_ready(vm)) {
188                         struct dma_fence *fence = NULL;
189
190                         r = amdgpu_vm_clear_freed(adev, vm, &fence);
191                         if (unlikely(r)) {
192                                 dev_err(adev->dev, "failed to clear page "
193                                         "tables on GEM object close (%d)\n", r);
194                         }
195
196                         if (fence) {
197                                 amdgpu_bo_fence(bo, fence, true);
198                                 dma_fence_put(fence);
199                         }
200                 }
201         }
202         ttm_eu_backoff_reservation(&ticket, &list);
203 }
204
205 /*
206  * GEM ioctls.
207  */
208 int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data,
209                             struct drm_file *filp)
210 {
211         struct amdgpu_device *adev = dev->dev_private;
212         struct amdgpu_fpriv *fpriv = filp->driver_priv;
213         struct amdgpu_vm *vm = &fpriv->vm;
214         union drm_amdgpu_gem_create *args = data;
215         uint64_t flags = args->in.domain_flags;
216         uint64_t size = args->in.bo_size;
217         struct reservation_object *resv = NULL;
218         struct drm_gem_object *gobj;
219         uint32_t handle;
220         int r;
221
222         /* reject invalid gem flags */
223         if (flags & ~(AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED |
224                       AMDGPU_GEM_CREATE_NO_CPU_ACCESS |
225                       AMDGPU_GEM_CREATE_CPU_GTT_USWC |
226                       AMDGPU_GEM_CREATE_VRAM_CLEARED |
227                       AMDGPU_GEM_CREATE_VM_ALWAYS_VALID |
228                       AMDGPU_GEM_CREATE_EXPLICIT_SYNC))
229
230                 return -EINVAL;
231
232         /* reject invalid gem domains */
233         if (args->in.domains & ~AMDGPU_GEM_DOMAIN_MASK)
234                 return -EINVAL;
235
236         /* create a gem object to contain this object in */
237         if (args->in.domains & (AMDGPU_GEM_DOMAIN_GDS |
238             AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA)) {
239                 if (flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID) {
240                         /* if gds bo is created from user space, it must be
241                          * passed to bo list
242                          */
243                         DRM_ERROR("GDS bo cannot be per-vm-bo\n");
244                         return -EINVAL;
245                 }
246                 flags |= AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
247                 if (args->in.domains == AMDGPU_GEM_DOMAIN_GDS)
248                         size = size << AMDGPU_GDS_SHIFT;
249                 else if (args->in.domains == AMDGPU_GEM_DOMAIN_GWS)
250                         size = size << AMDGPU_GWS_SHIFT;
251                 else if (args->in.domains == AMDGPU_GEM_DOMAIN_OA)
252                         size = size << AMDGPU_OA_SHIFT;
253                 else
254                         return -EINVAL;
255         }
256         size = roundup(size, PAGE_SIZE);
257
258         if (flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID) {
259                 r = amdgpu_bo_reserve(vm->root.base.bo, false);
260                 if (r)
261                         return r;
262
263                 resv = vm->root.base.bo->tbo.resv;
264         }
265
266         r = amdgpu_gem_object_create(adev, size, args->in.alignment,
267                                      (u32)(0xffffffff & args->in.domains),
268                                      flags, false, resv, &gobj);
269         if (flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID) {
270                 if (!r) {
271                         struct amdgpu_bo *abo = gem_to_amdgpu_bo(gobj);
272
273                         abo->parent = amdgpu_bo_ref(vm->root.base.bo);
274                 }
275                 amdgpu_bo_unreserve(vm->root.base.bo);
276         }
277         if (r)
278                 return r;
279
280         r = drm_gem_handle_create(filp, gobj, &handle);
281         /* drop reference from allocate - handle holds it now */
282         drm_gem_object_put_unlocked(gobj);
283         if (r)
284                 return r;
285
286         memset(args, 0, sizeof(*args));
287         args->out.handle = handle;
288         return 0;
289 }
290
291 int amdgpu_gem_userptr_ioctl(struct drm_device *dev, void *data,
292                              struct drm_file *filp)
293 {
294         struct ttm_operation_ctx ctx = { true, false };
295         struct amdgpu_device *adev = dev->dev_private;
296         struct drm_amdgpu_gem_userptr *args = data;
297         struct drm_gem_object *gobj;
298         struct amdgpu_bo *bo;
299         uint32_t handle;
300         int r;
301
302         if (offset_in_page(args->addr | args->size))
303                 return -EINVAL;
304
305         /* reject unknown flag values */
306         if (args->flags & ~(AMDGPU_GEM_USERPTR_READONLY |
307             AMDGPU_GEM_USERPTR_ANONONLY | AMDGPU_GEM_USERPTR_VALIDATE |
308             AMDGPU_GEM_USERPTR_REGISTER))
309                 return -EINVAL;
310
311         if (!(args->flags & AMDGPU_GEM_USERPTR_READONLY) &&
312              !(args->flags & AMDGPU_GEM_USERPTR_REGISTER)) {
313
314                 /* if we want to write to it we must install a MMU notifier */
315                 return -EACCES;
316         }
317
318         /* create a gem object to contain this object in */
319         r = amdgpu_gem_object_create(adev, args->size, 0, AMDGPU_GEM_DOMAIN_CPU,
320                                      0, 0, NULL, &gobj);
321         if (r)
322                 return r;
323
324         bo = gem_to_amdgpu_bo(gobj);
325         bo->preferred_domains = AMDGPU_GEM_DOMAIN_GTT;
326         bo->allowed_domains = AMDGPU_GEM_DOMAIN_GTT;
327         r = amdgpu_ttm_tt_set_userptr(bo->tbo.ttm, args->addr, args->flags);
328         if (r)
329                 goto release_object;
330
331         if (args->flags & AMDGPU_GEM_USERPTR_REGISTER) {
332                 r = amdgpu_mn_register(bo, args->addr);
333                 if (r)
334                         goto release_object;
335         }
336
337         if (args->flags & AMDGPU_GEM_USERPTR_VALIDATE) {
338                 r = amdgpu_ttm_tt_get_user_pages(bo->tbo.ttm,
339                                                  bo->tbo.ttm->pages);
340                 if (r)
341                         goto release_object;
342
343                 r = amdgpu_bo_reserve(bo, true);
344                 if (r)
345                         goto free_pages;
346
347                 amdgpu_ttm_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_GTT);
348                 r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
349                 amdgpu_bo_unreserve(bo);
350                 if (r)
351                         goto free_pages;
352         }
353
354         r = drm_gem_handle_create(filp, gobj, &handle);
355         /* drop reference from allocate - handle holds it now */
356         drm_gem_object_put_unlocked(gobj);
357         if (r)
358                 return r;
359
360         args->handle = handle;
361         return 0;
362
363 free_pages:
364         release_pages(bo->tbo.ttm->pages, bo->tbo.ttm->num_pages);
365
366 release_object:
367         drm_gem_object_put_unlocked(gobj);
368
369         return r;
370 }
371
372 int amdgpu_mode_dumb_mmap(struct drm_file *filp,
373                           struct drm_device *dev,
374                           uint32_t handle, uint64_t *offset_p)
375 {
376         struct drm_gem_object *gobj;
377         struct amdgpu_bo *robj;
378
379         gobj = drm_gem_object_lookup(filp, handle);
380         if (gobj == NULL) {
381                 return -ENOENT;
382         }
383         robj = gem_to_amdgpu_bo(gobj);
384         if (amdgpu_ttm_tt_get_usermm(robj->tbo.ttm) ||
385             (robj->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)) {
386                 drm_gem_object_put_unlocked(gobj);
387                 return -EPERM;
388         }
389         *offset_p = amdgpu_bo_mmap_offset(robj);
390         drm_gem_object_put_unlocked(gobj);
391         return 0;
392 }
393
394 int amdgpu_gem_mmap_ioctl(struct drm_device *dev, void *data,
395                           struct drm_file *filp)
396 {
397         union drm_amdgpu_gem_mmap *args = data;
398         uint32_t handle = args->in.handle;
399         memset(args, 0, sizeof(*args));
400         return amdgpu_mode_dumb_mmap(filp, dev, handle, &args->out.addr_ptr);
401 }
402
403 /**
404  * amdgpu_gem_timeout - calculate jiffies timeout from absolute value
405  *
406  * @timeout_ns: timeout in ns
407  *
408  * Calculate the timeout in jiffies from an absolute timeout in ns.
409  */
410 unsigned long amdgpu_gem_timeout(uint64_t timeout_ns)
411 {
412         unsigned long timeout_jiffies;
413         ktime_t timeout;
414
415         /* clamp timeout if it's to large */
416         if (((int64_t)timeout_ns) < 0)
417                 return MAX_SCHEDULE_TIMEOUT;
418
419         timeout = ktime_sub(ns_to_ktime(timeout_ns), ktime_get());
420         if (ktime_to_ns(timeout) < 0)
421                 return 0;
422
423         timeout_jiffies = nsecs_to_jiffies(ktime_to_ns(timeout));
424         /*  clamp timeout to avoid unsigned-> signed overflow */
425         if (timeout_jiffies > MAX_SCHEDULE_TIMEOUT )
426                 return MAX_SCHEDULE_TIMEOUT - 1;
427
428         return timeout_jiffies;
429 }
430
431 int amdgpu_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
432                               struct drm_file *filp)
433 {
434         union drm_amdgpu_gem_wait_idle *args = data;
435         struct drm_gem_object *gobj;
436         struct amdgpu_bo *robj;
437         uint32_t handle = args->in.handle;
438         unsigned long timeout = amdgpu_gem_timeout(args->in.timeout);
439         int r = 0;
440         long ret;
441
442         gobj = drm_gem_object_lookup(filp, handle);
443         if (gobj == NULL) {
444                 return -ENOENT;
445         }
446         robj = gem_to_amdgpu_bo(gobj);
447         ret = reservation_object_wait_timeout_rcu(robj->tbo.resv, true, true,
448                                                   timeout);
449
450         /* ret == 0 means not signaled,
451          * ret > 0 means signaled
452          * ret < 0 means interrupted before timeout
453          */
454         if (ret >= 0) {
455                 memset(args, 0, sizeof(*args));
456                 args->out.status = (ret == 0);
457         } else
458                 r = ret;
459
460         drm_gem_object_put_unlocked(gobj);
461         return r;
462 }
463
464 int amdgpu_gem_metadata_ioctl(struct drm_device *dev, void *data,
465                                 struct drm_file *filp)
466 {
467         struct drm_amdgpu_gem_metadata *args = data;
468         struct drm_gem_object *gobj;
469         struct amdgpu_bo *robj;
470         int r = -1;
471
472         DRM_DEBUG("%d \n", args->handle);
473         gobj = drm_gem_object_lookup(filp, args->handle);
474         if (gobj == NULL)
475                 return -ENOENT;
476         robj = gem_to_amdgpu_bo(gobj);
477
478         r = amdgpu_bo_reserve(robj, false);
479         if (unlikely(r != 0))
480                 goto out;
481
482         if (args->op == AMDGPU_GEM_METADATA_OP_GET_METADATA) {
483                 amdgpu_bo_get_tiling_flags(robj, &args->data.tiling_info);
484                 r = amdgpu_bo_get_metadata(robj, args->data.data,
485                                            sizeof(args->data.data),
486                                            &args->data.data_size_bytes,
487                                            &args->data.flags);
488         } else if (args->op == AMDGPU_GEM_METADATA_OP_SET_METADATA) {
489                 if (args->data.data_size_bytes > sizeof(args->data.data)) {
490                         r = -EINVAL;
491                         goto unreserve;
492                 }
493                 r = amdgpu_bo_set_tiling_flags(robj, args->data.tiling_info);
494                 if (!r)
495                         r = amdgpu_bo_set_metadata(robj, args->data.data,
496                                                    args->data.data_size_bytes,
497                                                    args->data.flags);
498         }
499
500 unreserve:
501         amdgpu_bo_unreserve(robj);
502 out:
503         drm_gem_object_put_unlocked(gobj);
504         return r;
505 }
506
507 /**
508  * amdgpu_gem_va_update_vm -update the bo_va in its VM
509  *
510  * @adev: amdgpu_device pointer
511  * @vm: vm to update
512  * @bo_va: bo_va to update
513  * @list: validation list
514  * @operation: map, unmap or clear
515  *
516  * Update the bo_va directly after setting its address. Errors are not
517  * vital here, so they are not reported back to userspace.
518  */
519 static void amdgpu_gem_va_update_vm(struct amdgpu_device *adev,
520                                     struct amdgpu_vm *vm,
521                                     struct amdgpu_bo_va *bo_va,
522                                     struct list_head *list,
523                                     uint32_t operation)
524 {
525         int r;
526
527         if (!amdgpu_vm_ready(vm))
528                 return;
529
530         r = amdgpu_vm_clear_freed(adev, vm, NULL);
531         if (r)
532                 goto error;
533
534         if (operation == AMDGPU_VA_OP_MAP ||
535             operation == AMDGPU_VA_OP_REPLACE) {
536                 r = amdgpu_vm_bo_update(adev, bo_va, false);
537                 if (r)
538                         goto error;
539         }
540
541         r = amdgpu_vm_update_directories(adev, vm);
542
543 error:
544         if (r && r != -ERESTARTSYS)
545                 DRM_ERROR("Couldn't update BO_VA (%d)\n", r);
546 }
547
548 int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
549                           struct drm_file *filp)
550 {
551         const uint32_t valid_flags = AMDGPU_VM_DELAY_UPDATE |
552                 AMDGPU_VM_PAGE_READABLE | AMDGPU_VM_PAGE_WRITEABLE |
553                 AMDGPU_VM_PAGE_EXECUTABLE | AMDGPU_VM_MTYPE_MASK;
554         const uint32_t prt_flags = AMDGPU_VM_DELAY_UPDATE |
555                 AMDGPU_VM_PAGE_PRT;
556
557         struct drm_amdgpu_gem_va *args = data;
558         struct drm_gem_object *gobj;
559         struct amdgpu_device *adev = dev->dev_private;
560         struct amdgpu_fpriv *fpriv = filp->driver_priv;
561         struct amdgpu_bo *abo;
562         struct amdgpu_bo_va *bo_va;
563         struct amdgpu_bo_list_entry vm_pd;
564         struct ttm_validate_buffer tv;
565         struct ww_acquire_ctx ticket;
566         struct list_head list, duplicates;
567         uint64_t va_flags;
568         int r = 0;
569
570         if (args->va_address < AMDGPU_VA_RESERVED_SIZE) {
571                 dev_dbg(&dev->pdev->dev,
572                         "va_address 0x%LX is in reserved area 0x%LX\n",
573                         args->va_address, AMDGPU_VA_RESERVED_SIZE);
574                 return -EINVAL;
575         }
576
577         if (args->va_address >= AMDGPU_VA_HOLE_START &&
578             args->va_address < AMDGPU_VA_HOLE_END) {
579                 dev_dbg(&dev->pdev->dev,
580                         "va_address 0x%LX is in VA hole 0x%LX-0x%LX\n",
581                         args->va_address, AMDGPU_VA_HOLE_START,
582                         AMDGPU_VA_HOLE_END);
583                 return -EINVAL;
584         }
585
586         args->va_address &= AMDGPU_VA_HOLE_MASK;
587
588         if ((args->flags & ~valid_flags) && (args->flags & ~prt_flags)) {
589                 dev_dbg(&dev->pdev->dev, "invalid flags combination 0x%08X\n",
590                         args->flags);
591                 return -EINVAL;
592         }
593
594         switch (args->operation) {
595         case AMDGPU_VA_OP_MAP:
596         case AMDGPU_VA_OP_UNMAP:
597         case AMDGPU_VA_OP_CLEAR:
598         case AMDGPU_VA_OP_REPLACE:
599                 break;
600         default:
601                 dev_dbg(&dev->pdev->dev, "unsupported operation %d\n",
602                         args->operation);
603                 return -EINVAL;
604         }
605
606         INIT_LIST_HEAD(&list);
607         INIT_LIST_HEAD(&duplicates);
608         if ((args->operation != AMDGPU_VA_OP_CLEAR) &&
609             !(args->flags & AMDGPU_VM_PAGE_PRT)) {
610                 gobj = drm_gem_object_lookup(filp, args->handle);
611                 if (gobj == NULL)
612                         return -ENOENT;
613                 abo = gem_to_amdgpu_bo(gobj);
614                 tv.bo = &abo->tbo;
615                 tv.shared = false;
616                 list_add(&tv.head, &list);
617         } else {
618                 gobj = NULL;
619                 abo = NULL;
620         }
621
622         amdgpu_vm_get_pd_bo(&fpriv->vm, &list, &vm_pd);
623
624         r = ttm_eu_reserve_buffers(&ticket, &list, true, &duplicates);
625         if (r)
626                 goto error_unref;
627
628         if (abo) {
629                 bo_va = amdgpu_vm_bo_find(&fpriv->vm, abo);
630                 if (!bo_va) {
631                         r = -ENOENT;
632                         goto error_backoff;
633                 }
634         } else if (args->operation != AMDGPU_VA_OP_CLEAR) {
635                 bo_va = fpriv->prt_va;
636         } else {
637                 bo_va = NULL;
638         }
639
640         switch (args->operation) {
641         case AMDGPU_VA_OP_MAP:
642                 r = amdgpu_vm_alloc_pts(adev, bo_va->base.vm, args->va_address,
643                                         args->map_size);
644                 if (r)
645                         goto error_backoff;
646
647                 va_flags = amdgpu_gmc_get_pte_flags(adev, args->flags);
648                 r = amdgpu_vm_bo_map(adev, bo_va, args->va_address,
649                                      args->offset_in_bo, args->map_size,
650                                      va_flags);
651                 break;
652         case AMDGPU_VA_OP_UNMAP:
653                 r = amdgpu_vm_bo_unmap(adev, bo_va, args->va_address);
654                 break;
655
656         case AMDGPU_VA_OP_CLEAR:
657                 r = amdgpu_vm_bo_clear_mappings(adev, &fpriv->vm,
658                                                 args->va_address,
659                                                 args->map_size);
660                 break;
661         case AMDGPU_VA_OP_REPLACE:
662                 r = amdgpu_vm_alloc_pts(adev, bo_va->base.vm, args->va_address,
663                                         args->map_size);
664                 if (r)
665                         goto error_backoff;
666
667                 va_flags = amdgpu_gmc_get_pte_flags(adev, args->flags);
668                 r = amdgpu_vm_bo_replace_map(adev, bo_va, args->va_address,
669                                              args->offset_in_bo, args->map_size,
670                                              va_flags);
671                 break;
672         default:
673                 break;
674         }
675         if (!r && !(args->flags & AMDGPU_VM_DELAY_UPDATE) && !amdgpu_vm_debug)
676                 amdgpu_gem_va_update_vm(adev, &fpriv->vm, bo_va, &list,
677                                         args->operation);
678
679 error_backoff:
680         ttm_eu_backoff_reservation(&ticket, &list);
681
682 error_unref:
683         drm_gem_object_put_unlocked(gobj);
684         return r;
685 }
686
687 int amdgpu_gem_op_ioctl(struct drm_device *dev, void *data,
688                         struct drm_file *filp)
689 {
690         struct amdgpu_device *adev = dev->dev_private;
691         struct drm_amdgpu_gem_op *args = data;
692         struct drm_gem_object *gobj;
693         struct amdgpu_bo *robj;
694         int r;
695
696         gobj = drm_gem_object_lookup(filp, args->handle);
697         if (gobj == NULL) {
698                 return -ENOENT;
699         }
700         robj = gem_to_amdgpu_bo(gobj);
701
702         r = amdgpu_bo_reserve(robj, false);
703         if (unlikely(r))
704                 goto out;
705
706         switch (args->op) {
707         case AMDGPU_GEM_OP_GET_GEM_CREATE_INFO: {
708                 struct drm_amdgpu_gem_create_in info;
709                 void __user *out = u64_to_user_ptr(args->value);
710
711                 info.bo_size = robj->gem_base.size;
712                 info.alignment = robj->tbo.mem.page_alignment << PAGE_SHIFT;
713                 info.domains = robj->preferred_domains;
714                 info.domain_flags = robj->flags;
715                 amdgpu_bo_unreserve(robj);
716                 if (copy_to_user(out, &info, sizeof(info)))
717                         r = -EFAULT;
718                 break;
719         }
720         case AMDGPU_GEM_OP_SET_PLACEMENT:
721                 if (robj->prime_shared_count && (args->value & AMDGPU_GEM_DOMAIN_VRAM)) {
722                         r = -EINVAL;
723                         amdgpu_bo_unreserve(robj);
724                         break;
725                 }
726                 if (amdgpu_ttm_tt_get_usermm(robj->tbo.ttm)) {
727                         r = -EPERM;
728                         amdgpu_bo_unreserve(robj);
729                         break;
730                 }
731                 robj->preferred_domains = args->value & (AMDGPU_GEM_DOMAIN_VRAM |
732                                                         AMDGPU_GEM_DOMAIN_GTT |
733                                                         AMDGPU_GEM_DOMAIN_CPU);
734                 robj->allowed_domains = robj->preferred_domains;
735                 if (robj->allowed_domains == AMDGPU_GEM_DOMAIN_VRAM)
736                         robj->allowed_domains |= AMDGPU_GEM_DOMAIN_GTT;
737
738                 if (robj->flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID)
739                         amdgpu_vm_bo_invalidate(adev, robj, true);
740
741                 amdgpu_bo_unreserve(robj);
742                 break;
743         default:
744                 amdgpu_bo_unreserve(robj);
745                 r = -EINVAL;
746         }
747
748 out:
749         drm_gem_object_put_unlocked(gobj);
750         return r;
751 }
752
753 int amdgpu_mode_dumb_create(struct drm_file *file_priv,
754                             struct drm_device *dev,
755                             struct drm_mode_create_dumb *args)
756 {
757         struct amdgpu_device *adev = dev->dev_private;
758         struct drm_gem_object *gobj;
759         uint32_t handle;
760         u32 domain;
761         int r;
762
763         args->pitch = amdgpu_align_pitch(adev, args->width,
764                                          DIV_ROUND_UP(args->bpp, 8), 0);
765         args->size = (u64)args->pitch * args->height;
766         args->size = ALIGN(args->size, PAGE_SIZE);
767         domain = amdgpu_bo_get_preferred_pin_domain(adev,
768                                 amdgpu_display_supported_domains(adev));
769         r = amdgpu_gem_object_create(adev, args->size, 0, domain,
770                                      AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
771                                      false, NULL, &gobj);
772         if (r)
773                 return -ENOMEM;
774
775         r = drm_gem_handle_create(file_priv, gobj, &handle);
776         /* drop reference from allocate - handle holds it now */
777         drm_gem_object_put_unlocked(gobj);
778         if (r) {
779                 return r;
780         }
781         args->handle = handle;
782         return 0;
783 }
784
785 #if defined(CONFIG_DEBUG_FS)
786
787 #define amdgpu_debugfs_gem_bo_print_flag(m, bo, flag)   \
788         if (bo->flags & (AMDGPU_GEM_CREATE_ ## flag)) { \
789                 seq_printf((m), " " #flag);             \
790         }
791
792 static int amdgpu_debugfs_gem_bo_info(int id, void *ptr, void *data)
793 {
794         struct drm_gem_object *gobj = ptr;
795         struct amdgpu_bo *bo = gem_to_amdgpu_bo(gobj);
796         struct seq_file *m = data;
797
798         struct dma_buf_attachment *attachment;
799         struct dma_buf *dma_buf;
800         unsigned domain;
801         const char *placement;
802         unsigned pin_count;
803
804         domain = amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type);
805         switch (domain) {
806         case AMDGPU_GEM_DOMAIN_VRAM:
807                 placement = "VRAM";
808                 break;
809         case AMDGPU_GEM_DOMAIN_GTT:
810                 placement = " GTT";
811                 break;
812         case AMDGPU_GEM_DOMAIN_CPU:
813         default:
814                 placement = " CPU";
815                 break;
816         }
817         seq_printf(m, "\t0x%08x: %12ld byte %s",
818                    id, amdgpu_bo_size(bo), placement);
819
820         pin_count = READ_ONCE(bo->pin_count);
821         if (pin_count)
822                 seq_printf(m, " pin count %d", pin_count);
823
824         dma_buf = READ_ONCE(bo->gem_base.dma_buf);
825         attachment = READ_ONCE(bo->gem_base.import_attach);
826
827         if (attachment)
828                 seq_printf(m, " imported from %p", dma_buf);
829         else if (dma_buf)
830                 seq_printf(m, " exported as %p", dma_buf);
831
832         amdgpu_debugfs_gem_bo_print_flag(m, bo, CPU_ACCESS_REQUIRED);
833         amdgpu_debugfs_gem_bo_print_flag(m, bo, NO_CPU_ACCESS);
834         amdgpu_debugfs_gem_bo_print_flag(m, bo, CPU_GTT_USWC);
835         amdgpu_debugfs_gem_bo_print_flag(m, bo, VRAM_CLEARED);
836         amdgpu_debugfs_gem_bo_print_flag(m, bo, SHADOW);
837         amdgpu_debugfs_gem_bo_print_flag(m, bo, VRAM_CONTIGUOUS);
838         amdgpu_debugfs_gem_bo_print_flag(m, bo, VM_ALWAYS_VALID);
839         amdgpu_debugfs_gem_bo_print_flag(m, bo, EXPLICIT_SYNC);
840
841         seq_printf(m, "\n");
842
843         return 0;
844 }
845
846 static int amdgpu_debugfs_gem_info(struct seq_file *m, void *data)
847 {
848         struct drm_info_node *node = (struct drm_info_node *)m->private;
849         struct drm_device *dev = node->minor->dev;
850         struct drm_file *file;
851         int r;
852
853         r = mutex_lock_interruptible(&dev->filelist_mutex);
854         if (r)
855                 return r;
856
857         list_for_each_entry(file, &dev->filelist, lhead) {
858                 struct task_struct *task;
859
860                 /*
861                  * Although we have a valid reference on file->pid, that does
862                  * not guarantee that the task_struct who called get_pid() is
863                  * still alive (e.g. get_pid(current) => fork() => exit()).
864                  * Therefore, we need to protect this ->comm access using RCU.
865                  */
866                 rcu_read_lock();
867                 task = pid_task(file->pid, PIDTYPE_PID);
868                 seq_printf(m, "pid %8d command %s:\n", pid_nr(file->pid),
869                            task ? task->comm : "<unknown>");
870                 rcu_read_unlock();
871
872                 spin_lock(&file->table_lock);
873                 idr_for_each(&file->object_idr, amdgpu_debugfs_gem_bo_info, m);
874                 spin_unlock(&file->table_lock);
875         }
876
877         mutex_unlock(&dev->filelist_mutex);
878         return 0;
879 }
880
881 static const struct drm_info_list amdgpu_debugfs_gem_list[] = {
882         {"amdgpu_gem_info", &amdgpu_debugfs_gem_info, 0, NULL},
883 };
884 #endif
885
886 int amdgpu_debugfs_gem_init(struct amdgpu_device *adev)
887 {
888 #if defined(CONFIG_DEBUG_FS)
889         return amdgpu_debugfs_add_files(adev, amdgpu_debugfs_gem_list, 1);
890 #endif
891         return 0;
892 }
This page took 0.0877 seconds and 4 git commands to generate.