2 * Copyright 2008 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
4 * Copyright 2009 Jerome Glisse.
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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.
24 * Authors: Dave Airlie
28 #include <linux/ktime.h>
29 #include <linux/module.h>
30 #include <linux/pagemap.h>
31 #include <linux/pci.h>
32 #include <linux/dma-buf.h>
34 #include <drm/amdgpu_drm.h>
35 #include <drm/drm_debugfs.h>
38 #include "amdgpu_display.h"
39 #include "amdgpu_xgmi.h"
41 void amdgpu_gem_object_free(struct drm_gem_object *gobj)
43 struct amdgpu_bo *robj = gem_to_amdgpu_bo(gobj);
46 amdgpu_mn_unregister(robj);
47 amdgpu_bo_unref(&robj);
51 int amdgpu_gem_object_create(struct amdgpu_device *adev, unsigned long size,
52 int alignment, u32 initial_domain,
53 u64 flags, enum ttm_bo_type type,
54 struct dma_resv *resv,
55 struct drm_gem_object **obj)
58 struct amdgpu_bo_param bp;
61 memset(&bp, 0, sizeof(bp));
65 bp.byte_align = alignment;
68 bp.preferred_domain = initial_domain;
71 bp.domain = initial_domain;
72 r = amdgpu_bo_create(adev, &bp, &bo);
74 if (r != -ERESTARTSYS) {
75 if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) {
76 flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
80 if (initial_domain == AMDGPU_GEM_DOMAIN_VRAM) {
81 initial_domain |= AMDGPU_GEM_DOMAIN_GTT;
84 DRM_DEBUG("Failed to allocate GEM object (%ld, %d, %u, %d)\n",
85 size, initial_domain, alignment, r);
94 void amdgpu_gem_force_release(struct amdgpu_device *adev)
96 struct drm_device *ddev = adev_to_drm(adev);
97 struct drm_file *file;
99 mutex_lock(&ddev->filelist_mutex);
101 list_for_each_entry(file, &ddev->filelist, lhead) {
102 struct drm_gem_object *gobj;
105 WARN_ONCE(1, "Still active user space clients!\n");
106 spin_lock(&file->table_lock);
107 idr_for_each_entry(&file->object_idr, gobj, handle) {
108 WARN_ONCE(1, "And also active allocations!\n");
109 drm_gem_object_put(gobj);
111 idr_destroy(&file->object_idr);
112 spin_unlock(&file->table_lock);
115 mutex_unlock(&ddev->filelist_mutex);
119 * Call from drm_gem_handle_create which appear in both new and open ioctl
122 int amdgpu_gem_object_open(struct drm_gem_object *obj,
123 struct drm_file *file_priv)
125 struct amdgpu_bo *abo = gem_to_amdgpu_bo(obj);
126 struct amdgpu_device *adev = amdgpu_ttm_adev(abo->tbo.bdev);
127 struct amdgpu_fpriv *fpriv = file_priv->driver_priv;
128 struct amdgpu_vm *vm = &fpriv->vm;
129 struct amdgpu_bo_va *bo_va;
130 struct mm_struct *mm;
133 mm = amdgpu_ttm_tt_get_usermm(abo->tbo.ttm);
134 if (mm && mm != current->mm)
137 if (abo->flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID &&
138 abo->tbo.base.resv != vm->root.base.bo->tbo.base.resv)
141 r = amdgpu_bo_reserve(abo, false);
145 bo_va = amdgpu_vm_bo_find(vm, abo);
147 bo_va = amdgpu_vm_bo_add(adev, vm, abo);
151 amdgpu_bo_unreserve(abo);
155 void amdgpu_gem_object_close(struct drm_gem_object *obj,
156 struct drm_file *file_priv)
158 struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
159 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
160 struct amdgpu_fpriv *fpriv = file_priv->driver_priv;
161 struct amdgpu_vm *vm = &fpriv->vm;
163 struct amdgpu_bo_list_entry vm_pd;
164 struct list_head list, duplicates;
165 struct dma_fence *fence = NULL;
166 struct ttm_validate_buffer tv;
167 struct ww_acquire_ctx ticket;
168 struct amdgpu_bo_va *bo_va;
171 INIT_LIST_HEAD(&list);
172 INIT_LIST_HEAD(&duplicates);
176 list_add(&tv.head, &list);
178 amdgpu_vm_get_pd_bo(vm, &list, &vm_pd);
180 r = ttm_eu_reserve_buffers(&ticket, &list, false, &duplicates);
182 dev_err(adev->dev, "leaking bo va because "
183 "we fail to reserve bo (%ld)\n", r);
186 bo_va = amdgpu_vm_bo_find(vm, bo);
187 if (!bo_va || --bo_va->ref_count)
190 amdgpu_vm_bo_rmv(adev, bo_va);
191 if (!amdgpu_vm_ready(vm))
194 fence = dma_resv_get_excl(bo->tbo.base.resv);
196 amdgpu_bo_fence(bo, fence, true);
200 r = amdgpu_vm_clear_freed(adev, vm, &fence);
204 amdgpu_bo_fence(bo, fence, true);
205 dma_fence_put(fence);
209 dev_err(adev->dev, "failed to clear page "
210 "tables on GEM object close (%ld)\n", r);
211 ttm_eu_backoff_reservation(&ticket, &list);
217 int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data,
218 struct drm_file *filp)
220 struct amdgpu_device *adev = drm_to_adev(dev);
221 struct amdgpu_fpriv *fpriv = filp->driver_priv;
222 struct amdgpu_vm *vm = &fpriv->vm;
223 union drm_amdgpu_gem_create *args = data;
224 uint64_t flags = args->in.domain_flags;
225 uint64_t size = args->in.bo_size;
226 struct dma_resv *resv = NULL;
227 struct drm_gem_object *gobj;
231 /* reject invalid gem flags */
232 if (flags & ~(AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED |
233 AMDGPU_GEM_CREATE_NO_CPU_ACCESS |
234 AMDGPU_GEM_CREATE_CPU_GTT_USWC |
235 AMDGPU_GEM_CREATE_VRAM_CLEARED |
236 AMDGPU_GEM_CREATE_VM_ALWAYS_VALID |
237 AMDGPU_GEM_CREATE_EXPLICIT_SYNC |
238 AMDGPU_GEM_CREATE_ENCRYPTED))
242 /* reject invalid gem domains */
243 if (args->in.domains & ~AMDGPU_GEM_DOMAIN_MASK)
246 if (!amdgpu_is_tmz(adev) && (flags & AMDGPU_GEM_CREATE_ENCRYPTED)) {
247 DRM_NOTE_ONCE("Cannot allocate secure buffer since TMZ is disabled\n");
251 /* create a gem object to contain this object in */
252 if (args->in.domains & (AMDGPU_GEM_DOMAIN_GDS |
253 AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA)) {
254 if (flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID) {
255 /* if gds bo is created from user space, it must be
258 DRM_ERROR("GDS bo cannot be per-vm-bo\n");
261 flags |= AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
264 if (flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID) {
265 r = amdgpu_bo_reserve(vm->root.base.bo, false);
269 resv = vm->root.base.bo->tbo.base.resv;
272 r = amdgpu_gem_object_create(adev, size, args->in.alignment,
273 (u32)(0xffffffff & args->in.domains),
274 flags, ttm_bo_type_device, resv, &gobj);
275 if (flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID) {
277 struct amdgpu_bo *abo = gem_to_amdgpu_bo(gobj);
279 abo->parent = amdgpu_bo_ref(vm->root.base.bo);
281 amdgpu_bo_unreserve(vm->root.base.bo);
286 r = drm_gem_handle_create(filp, gobj, &handle);
287 /* drop reference from allocate - handle holds it now */
288 drm_gem_object_put(gobj);
292 memset(args, 0, sizeof(*args));
293 args->out.handle = handle;
297 int amdgpu_gem_userptr_ioctl(struct drm_device *dev, void *data,
298 struct drm_file *filp)
300 struct ttm_operation_ctx ctx = { true, false };
301 struct amdgpu_device *adev = drm_to_adev(dev);
302 struct drm_amdgpu_gem_userptr *args = data;
303 struct drm_gem_object *gobj;
304 struct amdgpu_bo *bo;
308 args->addr = untagged_addr(args->addr);
310 if (offset_in_page(args->addr | args->size))
313 /* reject unknown flag values */
314 if (args->flags & ~(AMDGPU_GEM_USERPTR_READONLY |
315 AMDGPU_GEM_USERPTR_ANONONLY | AMDGPU_GEM_USERPTR_VALIDATE |
316 AMDGPU_GEM_USERPTR_REGISTER))
319 if (!(args->flags & AMDGPU_GEM_USERPTR_READONLY) &&
320 !(args->flags & AMDGPU_GEM_USERPTR_REGISTER)) {
322 /* if we want to write to it we must install a MMU notifier */
326 /* create a gem object to contain this object in */
327 r = amdgpu_gem_object_create(adev, args->size, 0, AMDGPU_GEM_DOMAIN_CPU,
328 0, ttm_bo_type_device, NULL, &gobj);
332 bo = gem_to_amdgpu_bo(gobj);
333 bo->preferred_domains = AMDGPU_GEM_DOMAIN_GTT;
334 bo->allowed_domains = AMDGPU_GEM_DOMAIN_GTT;
335 r = amdgpu_ttm_tt_set_userptr(&bo->tbo, args->addr, args->flags);
339 if (args->flags & AMDGPU_GEM_USERPTR_REGISTER) {
340 r = amdgpu_mn_register(bo, args->addr);
345 if (args->flags & AMDGPU_GEM_USERPTR_VALIDATE) {
346 r = amdgpu_ttm_tt_get_user_pages(bo, bo->tbo.ttm->pages);
350 r = amdgpu_bo_reserve(bo, true);
352 goto user_pages_done;
354 amdgpu_bo_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_GTT);
355 r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
356 amdgpu_bo_unreserve(bo);
358 goto user_pages_done;
361 r = drm_gem_handle_create(filp, gobj, &handle);
363 goto user_pages_done;
365 args->handle = handle;
368 if (args->flags & AMDGPU_GEM_USERPTR_VALIDATE)
369 amdgpu_ttm_tt_get_user_pages_done(bo->tbo.ttm);
372 drm_gem_object_put(gobj);
377 int amdgpu_mode_dumb_mmap(struct drm_file *filp,
378 struct drm_device *dev,
379 uint32_t handle, uint64_t *offset_p)
381 struct drm_gem_object *gobj;
382 struct amdgpu_bo *robj;
384 gobj = drm_gem_object_lookup(filp, handle);
388 robj = gem_to_amdgpu_bo(gobj);
389 if (amdgpu_ttm_tt_get_usermm(robj->tbo.ttm) ||
390 (robj->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)) {
391 drm_gem_object_put(gobj);
394 *offset_p = amdgpu_bo_mmap_offset(robj);
395 drm_gem_object_put(gobj);
399 int amdgpu_gem_mmap_ioctl(struct drm_device *dev, void *data,
400 struct drm_file *filp)
402 union drm_amdgpu_gem_mmap *args = data;
403 uint32_t handle = args->in.handle;
404 memset(args, 0, sizeof(*args));
405 return amdgpu_mode_dumb_mmap(filp, dev, handle, &args->out.addr_ptr);
409 * amdgpu_gem_timeout - calculate jiffies timeout from absolute value
411 * @timeout_ns: timeout in ns
413 * Calculate the timeout in jiffies from an absolute timeout in ns.
415 unsigned long amdgpu_gem_timeout(uint64_t timeout_ns)
417 unsigned long timeout_jiffies;
420 /* clamp timeout if it's to large */
421 if (((int64_t)timeout_ns) < 0)
422 return MAX_SCHEDULE_TIMEOUT;
424 timeout = ktime_sub(ns_to_ktime(timeout_ns), ktime_get());
425 if (ktime_to_ns(timeout) < 0)
428 timeout_jiffies = nsecs_to_jiffies(ktime_to_ns(timeout));
429 /* clamp timeout to avoid unsigned-> signed overflow */
430 if (timeout_jiffies > MAX_SCHEDULE_TIMEOUT )
431 return MAX_SCHEDULE_TIMEOUT - 1;
433 return timeout_jiffies;
436 int amdgpu_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
437 struct drm_file *filp)
439 union drm_amdgpu_gem_wait_idle *args = data;
440 struct drm_gem_object *gobj;
441 struct amdgpu_bo *robj;
442 uint32_t handle = args->in.handle;
443 unsigned long timeout = amdgpu_gem_timeout(args->in.timeout);
447 gobj = drm_gem_object_lookup(filp, handle);
451 robj = gem_to_amdgpu_bo(gobj);
452 ret = dma_resv_wait_timeout_rcu(robj->tbo.base.resv, true, true,
455 /* ret == 0 means not signaled,
456 * ret > 0 means signaled
457 * ret < 0 means interrupted before timeout
460 memset(args, 0, sizeof(*args));
461 args->out.status = (ret == 0);
465 drm_gem_object_put(gobj);
469 int amdgpu_gem_metadata_ioctl(struct drm_device *dev, void *data,
470 struct drm_file *filp)
472 struct drm_amdgpu_gem_metadata *args = data;
473 struct drm_gem_object *gobj;
474 struct amdgpu_bo *robj;
477 DRM_DEBUG("%d \n", args->handle);
478 gobj = drm_gem_object_lookup(filp, args->handle);
481 robj = gem_to_amdgpu_bo(gobj);
483 r = amdgpu_bo_reserve(robj, false);
484 if (unlikely(r != 0))
487 if (args->op == AMDGPU_GEM_METADATA_OP_GET_METADATA) {
488 amdgpu_bo_get_tiling_flags(robj, &args->data.tiling_info);
489 r = amdgpu_bo_get_metadata(robj, args->data.data,
490 sizeof(args->data.data),
491 &args->data.data_size_bytes,
493 } else if (args->op == AMDGPU_GEM_METADATA_OP_SET_METADATA) {
494 if (args->data.data_size_bytes > sizeof(args->data.data)) {
498 r = amdgpu_bo_set_tiling_flags(robj, args->data.tiling_info);
500 r = amdgpu_bo_set_metadata(robj, args->data.data,
501 args->data.data_size_bytes,
506 amdgpu_bo_unreserve(robj);
508 drm_gem_object_put(gobj);
513 * amdgpu_gem_va_update_vm -update the bo_va in its VM
515 * @adev: amdgpu_device pointer
517 * @bo_va: bo_va to update
518 * @operation: map, unmap or clear
520 * Update the bo_va directly after setting its address. Errors are not
521 * vital here, so they are not reported back to userspace.
523 static void amdgpu_gem_va_update_vm(struct amdgpu_device *adev,
524 struct amdgpu_vm *vm,
525 struct amdgpu_bo_va *bo_va,
530 if (!amdgpu_vm_ready(vm))
533 r = amdgpu_vm_clear_freed(adev, vm, NULL);
537 if (operation == AMDGPU_VA_OP_MAP ||
538 operation == AMDGPU_VA_OP_REPLACE) {
539 r = amdgpu_vm_bo_update(adev, bo_va, false);
544 r = amdgpu_vm_update_pdes(adev, vm, false);
547 if (r && r != -ERESTARTSYS)
548 DRM_ERROR("Couldn't update BO_VA (%d)\n", r);
552 * amdgpu_gem_va_map_flags - map GEM UAPI flags into hardware flags
554 * @adev: amdgpu_device pointer
555 * @flags: GEM UAPI flags
557 * Returns the GEM UAPI flags mapped into hardware for the ASIC.
559 uint64_t amdgpu_gem_va_map_flags(struct amdgpu_device *adev, uint32_t flags)
561 uint64_t pte_flag = 0;
563 if (flags & AMDGPU_VM_PAGE_EXECUTABLE)
564 pte_flag |= AMDGPU_PTE_EXECUTABLE;
565 if (flags & AMDGPU_VM_PAGE_READABLE)
566 pte_flag |= AMDGPU_PTE_READABLE;
567 if (flags & AMDGPU_VM_PAGE_WRITEABLE)
568 pte_flag |= AMDGPU_PTE_WRITEABLE;
569 if (flags & AMDGPU_VM_PAGE_PRT)
570 pte_flag |= AMDGPU_PTE_PRT;
572 if (adev->gmc.gmc_funcs->map_mtype)
573 pte_flag |= amdgpu_gmc_map_mtype(adev,
574 flags & AMDGPU_VM_MTYPE_MASK);
579 int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
580 struct drm_file *filp)
582 const uint32_t valid_flags = AMDGPU_VM_DELAY_UPDATE |
583 AMDGPU_VM_PAGE_READABLE | AMDGPU_VM_PAGE_WRITEABLE |
584 AMDGPU_VM_PAGE_EXECUTABLE | AMDGPU_VM_MTYPE_MASK;
585 const uint32_t prt_flags = AMDGPU_VM_DELAY_UPDATE |
588 struct drm_amdgpu_gem_va *args = data;
589 struct drm_gem_object *gobj;
590 struct amdgpu_device *adev = drm_to_adev(dev);
591 struct amdgpu_fpriv *fpriv = filp->driver_priv;
592 struct amdgpu_bo *abo;
593 struct amdgpu_bo_va *bo_va;
594 struct amdgpu_bo_list_entry vm_pd;
595 struct ttm_validate_buffer tv;
596 struct ww_acquire_ctx ticket;
597 struct list_head list, duplicates;
602 if (args->va_address < AMDGPU_VA_RESERVED_SIZE) {
603 dev_dbg(&dev->pdev->dev,
604 "va_address 0x%LX is in reserved area 0x%LX\n",
605 args->va_address, AMDGPU_VA_RESERVED_SIZE);
609 if (args->va_address >= AMDGPU_GMC_HOLE_START &&
610 args->va_address < AMDGPU_GMC_HOLE_END) {
611 dev_dbg(&dev->pdev->dev,
612 "va_address 0x%LX is in VA hole 0x%LX-0x%LX\n",
613 args->va_address, AMDGPU_GMC_HOLE_START,
614 AMDGPU_GMC_HOLE_END);
618 args->va_address &= AMDGPU_GMC_HOLE_MASK;
620 vm_size = adev->vm_manager.max_pfn * AMDGPU_GPU_PAGE_SIZE;
621 vm_size -= AMDGPU_VA_RESERVED_SIZE;
622 if (args->va_address + args->map_size > vm_size) {
623 dev_dbg(&dev->pdev->dev,
624 "va_address 0x%llx is in top reserved area 0x%llx\n",
625 args->va_address + args->map_size, vm_size);
629 if ((args->flags & ~valid_flags) && (args->flags & ~prt_flags)) {
630 dev_dbg(&dev->pdev->dev, "invalid flags combination 0x%08X\n",
635 switch (args->operation) {
636 case AMDGPU_VA_OP_MAP:
637 case AMDGPU_VA_OP_UNMAP:
638 case AMDGPU_VA_OP_CLEAR:
639 case AMDGPU_VA_OP_REPLACE:
642 dev_dbg(&dev->pdev->dev, "unsupported operation %d\n",
647 INIT_LIST_HEAD(&list);
648 INIT_LIST_HEAD(&duplicates);
649 if ((args->operation != AMDGPU_VA_OP_CLEAR) &&
650 !(args->flags & AMDGPU_VM_PAGE_PRT)) {
651 gobj = drm_gem_object_lookup(filp, args->handle);
654 abo = gem_to_amdgpu_bo(gobj);
656 if (abo->flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID)
660 list_add(&tv.head, &list);
666 amdgpu_vm_get_pd_bo(&fpriv->vm, &list, &vm_pd);
668 r = ttm_eu_reserve_buffers(&ticket, &list, true, &duplicates);
673 bo_va = amdgpu_vm_bo_find(&fpriv->vm, abo);
678 } else if (args->operation != AMDGPU_VA_OP_CLEAR) {
679 bo_va = fpriv->prt_va;
684 switch (args->operation) {
685 case AMDGPU_VA_OP_MAP:
686 va_flags = amdgpu_gem_va_map_flags(adev, args->flags);
687 r = amdgpu_vm_bo_map(adev, bo_va, args->va_address,
688 args->offset_in_bo, args->map_size,
691 case AMDGPU_VA_OP_UNMAP:
692 r = amdgpu_vm_bo_unmap(adev, bo_va, args->va_address);
695 case AMDGPU_VA_OP_CLEAR:
696 r = amdgpu_vm_bo_clear_mappings(adev, &fpriv->vm,
700 case AMDGPU_VA_OP_REPLACE:
701 va_flags = amdgpu_gem_va_map_flags(adev, args->flags);
702 r = amdgpu_vm_bo_replace_map(adev, bo_va, args->va_address,
703 args->offset_in_bo, args->map_size,
709 if (!r && !(args->flags & AMDGPU_VM_DELAY_UPDATE) && !amdgpu_vm_debug)
710 amdgpu_gem_va_update_vm(adev, &fpriv->vm, bo_va,
714 ttm_eu_backoff_reservation(&ticket, &list);
717 drm_gem_object_put(gobj);
721 int amdgpu_gem_op_ioctl(struct drm_device *dev, void *data,
722 struct drm_file *filp)
724 struct amdgpu_device *adev = drm_to_adev(dev);
725 struct drm_amdgpu_gem_op *args = data;
726 struct drm_gem_object *gobj;
727 struct amdgpu_vm_bo_base *base;
728 struct amdgpu_bo *robj;
731 gobj = drm_gem_object_lookup(filp, args->handle);
735 robj = gem_to_amdgpu_bo(gobj);
737 r = amdgpu_bo_reserve(robj, false);
742 case AMDGPU_GEM_OP_GET_GEM_CREATE_INFO: {
743 struct drm_amdgpu_gem_create_in info;
744 void __user *out = u64_to_user_ptr(args->value);
746 info.bo_size = robj->tbo.base.size;
747 info.alignment = robj->tbo.mem.page_alignment << PAGE_SHIFT;
748 info.domains = robj->preferred_domains;
749 info.domain_flags = robj->flags;
750 amdgpu_bo_unreserve(robj);
751 if (copy_to_user(out, &info, sizeof(info)))
755 case AMDGPU_GEM_OP_SET_PLACEMENT:
756 if (robj->prime_shared_count && (args->value & AMDGPU_GEM_DOMAIN_VRAM)) {
758 amdgpu_bo_unreserve(robj);
761 if (amdgpu_ttm_tt_get_usermm(robj->tbo.ttm)) {
763 amdgpu_bo_unreserve(robj);
766 for (base = robj->vm_bo; base; base = base->next)
767 if (amdgpu_xgmi_same_hive(amdgpu_ttm_adev(robj->tbo.bdev),
768 amdgpu_ttm_adev(base->vm->root.base.bo->tbo.bdev))) {
770 amdgpu_bo_unreserve(robj);
775 robj->preferred_domains = args->value & (AMDGPU_GEM_DOMAIN_VRAM |
776 AMDGPU_GEM_DOMAIN_GTT |
777 AMDGPU_GEM_DOMAIN_CPU);
778 robj->allowed_domains = robj->preferred_domains;
779 if (robj->allowed_domains == AMDGPU_GEM_DOMAIN_VRAM)
780 robj->allowed_domains |= AMDGPU_GEM_DOMAIN_GTT;
782 if (robj->flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID)
783 amdgpu_vm_bo_invalidate(adev, robj, true);
785 amdgpu_bo_unreserve(robj);
788 amdgpu_bo_unreserve(robj);
793 drm_gem_object_put(gobj);
797 int amdgpu_mode_dumb_create(struct drm_file *file_priv,
798 struct drm_device *dev,
799 struct drm_mode_create_dumb *args)
801 struct amdgpu_device *adev = drm_to_adev(dev);
802 struct drm_gem_object *gobj;
804 u64 flags = AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED |
805 AMDGPU_GEM_CREATE_CPU_GTT_USWC;
810 * The buffer returned from this function should be cleared, but
811 * it can only be done if the ring is enabled or we'll fail to
814 if (adev->mman.buffer_funcs_enabled)
815 flags |= AMDGPU_GEM_CREATE_VRAM_CLEARED;
817 args->pitch = amdgpu_align_pitch(adev, args->width,
818 DIV_ROUND_UP(args->bpp, 8), 0);
819 args->size = (u64)args->pitch * args->height;
820 args->size = ALIGN(args->size, PAGE_SIZE);
821 domain = amdgpu_bo_get_preferred_pin_domain(adev,
822 amdgpu_display_supported_domains(adev, flags));
823 r = amdgpu_gem_object_create(adev, args->size, 0, domain, flags,
824 ttm_bo_type_device, NULL, &gobj);
828 r = drm_gem_handle_create(file_priv, gobj, &handle);
829 /* drop reference from allocate - handle holds it now */
830 drm_gem_object_put(gobj);
834 args->handle = handle;
838 #if defined(CONFIG_DEBUG_FS)
840 #define amdgpu_debugfs_gem_bo_print_flag(m, bo, flag) \
841 if (bo->flags & (AMDGPU_GEM_CREATE_ ## flag)) { \
842 seq_printf((m), " " #flag); \
845 static int amdgpu_debugfs_gem_bo_info(int id, void *ptr, void *data)
847 struct drm_gem_object *gobj = ptr;
848 struct amdgpu_bo *bo = gem_to_amdgpu_bo(gobj);
849 struct seq_file *m = data;
851 struct dma_buf_attachment *attachment;
852 struct dma_buf *dma_buf;
854 const char *placement;
857 domain = amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type);
859 case AMDGPU_GEM_DOMAIN_VRAM:
862 case AMDGPU_GEM_DOMAIN_GTT:
865 case AMDGPU_GEM_DOMAIN_CPU:
870 seq_printf(m, "\t0x%08x: %12ld byte %s",
871 id, amdgpu_bo_size(bo), placement);
873 pin_count = READ_ONCE(bo->pin_count);
875 seq_printf(m, " pin count %d", pin_count);
877 dma_buf = READ_ONCE(bo->tbo.base.dma_buf);
878 attachment = READ_ONCE(bo->tbo.base.import_attach);
881 seq_printf(m, " imported from %p%s", dma_buf,
882 attachment->peer2peer ? " P2P" : "");
884 seq_printf(m, " exported as %p", dma_buf);
886 amdgpu_debugfs_gem_bo_print_flag(m, bo, CPU_ACCESS_REQUIRED);
887 amdgpu_debugfs_gem_bo_print_flag(m, bo, NO_CPU_ACCESS);
888 amdgpu_debugfs_gem_bo_print_flag(m, bo, CPU_GTT_USWC);
889 amdgpu_debugfs_gem_bo_print_flag(m, bo, VRAM_CLEARED);
890 amdgpu_debugfs_gem_bo_print_flag(m, bo, SHADOW);
891 amdgpu_debugfs_gem_bo_print_flag(m, bo, VRAM_CONTIGUOUS);
892 amdgpu_debugfs_gem_bo_print_flag(m, bo, VM_ALWAYS_VALID);
893 amdgpu_debugfs_gem_bo_print_flag(m, bo, EXPLICIT_SYNC);
900 static int amdgpu_debugfs_gem_info(struct seq_file *m, void *data)
902 struct drm_info_node *node = (struct drm_info_node *)m->private;
903 struct drm_device *dev = node->minor->dev;
904 struct drm_file *file;
907 r = mutex_lock_interruptible(&dev->filelist_mutex);
911 list_for_each_entry(file, &dev->filelist, lhead) {
912 struct task_struct *task;
915 * Although we have a valid reference on file->pid, that does
916 * not guarantee that the task_struct who called get_pid() is
917 * still alive (e.g. get_pid(current) => fork() => exit()).
918 * Therefore, we need to protect this ->comm access using RCU.
921 task = pid_task(file->pid, PIDTYPE_PID);
922 seq_printf(m, "pid %8d command %s:\n", pid_nr(file->pid),
923 task ? task->comm : "<unknown>");
926 spin_lock(&file->table_lock);
927 idr_for_each(&file->object_idr, amdgpu_debugfs_gem_bo_info, m);
928 spin_unlock(&file->table_lock);
931 mutex_unlock(&dev->filelist_mutex);
935 static const struct drm_info_list amdgpu_debugfs_gem_list[] = {
936 {"amdgpu_gem_info", &amdgpu_debugfs_gem_info, 0, NULL},
940 int amdgpu_debugfs_gem_init(struct amdgpu_device *adev)
942 #if defined(CONFIG_DEBUG_FS)
943 return amdgpu_debugfs_add_files(adev, amdgpu_debugfs_gem_list,
944 ARRAY_SIZE(amdgpu_debugfs_gem_list));