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_drv.h>
36 #include <drm/drm_gem_ttm_helper.h>
39 #include "amdgpu_display.h"
40 #include "amdgpu_dma_buf.h"
41 #include "amdgpu_xgmi.h"
43 static const struct drm_gem_object_funcs amdgpu_gem_object_funcs;
45 static vm_fault_t amdgpu_gem_fault(struct vm_fault *vmf)
47 struct ttm_buffer_object *bo = vmf->vma->vm_private_data;
48 struct drm_device *ddev = bo->base.dev;
52 ret = ttm_bo_vm_reserve(bo, vmf);
56 if (drm_dev_enter(ddev, &idx)) {
57 ret = amdgpu_bo_fault_reserve_notify(bo);
63 ret = ttm_bo_vm_fault_reserved(vmf, vmf->vma->vm_page_prot,
64 TTM_BO_VM_NUM_PREFAULT, 1);
68 ret = ttm_bo_vm_dummy_page(vmf, vmf->vma->vm_page_prot);
70 if (ret == VM_FAULT_RETRY && !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT))
74 dma_resv_unlock(bo->base.resv);
78 static const struct vm_operations_struct amdgpu_gem_vm_ops = {
79 .fault = amdgpu_gem_fault,
80 .open = ttm_bo_vm_open,
81 .close = ttm_bo_vm_close,
82 .access = ttm_bo_vm_access
85 static void amdgpu_gem_object_free(struct drm_gem_object *gobj)
87 struct amdgpu_bo *robj = gem_to_amdgpu_bo(gobj);
90 amdgpu_mn_unregister(robj);
91 amdgpu_bo_unref(&robj);
95 int amdgpu_gem_object_create(struct amdgpu_device *adev, unsigned long size,
96 int alignment, u32 initial_domain,
97 u64 flags, enum ttm_bo_type type,
98 struct dma_resv *resv,
99 struct drm_gem_object **obj)
101 struct amdgpu_bo *bo;
102 struct amdgpu_bo_user *ubo;
103 struct amdgpu_bo_param bp;
106 memset(&bp, 0, sizeof(bp));
110 bp.byte_align = alignment;
113 bp.preferred_domain = initial_domain;
115 bp.domain = initial_domain;
116 bp.bo_ptr_size = sizeof(struct amdgpu_bo);
118 r = amdgpu_bo_create_user(adev, &bp, &ubo);
123 *obj = &bo->tbo.base;
124 (*obj)->funcs = &amdgpu_gem_object_funcs;
129 void amdgpu_gem_force_release(struct amdgpu_device *adev)
131 struct drm_device *ddev = adev_to_drm(adev);
132 struct drm_file *file;
134 mutex_lock(&ddev->filelist_mutex);
136 list_for_each_entry(file, &ddev->filelist, lhead) {
137 struct drm_gem_object *gobj;
140 WARN_ONCE(1, "Still active user space clients!\n");
141 spin_lock(&file->table_lock);
142 idr_for_each_entry(&file->object_idr, gobj, handle) {
143 WARN_ONCE(1, "And also active allocations!\n");
144 drm_gem_object_put(gobj);
146 idr_destroy(&file->object_idr);
147 spin_unlock(&file->table_lock);
150 mutex_unlock(&ddev->filelist_mutex);
154 * Call from drm_gem_handle_create which appear in both new and open ioctl
157 static int amdgpu_gem_object_open(struct drm_gem_object *obj,
158 struct drm_file *file_priv)
160 struct amdgpu_bo *abo = gem_to_amdgpu_bo(obj);
161 struct amdgpu_device *adev = amdgpu_ttm_adev(abo->tbo.bdev);
162 struct amdgpu_fpriv *fpriv = file_priv->driver_priv;
163 struct amdgpu_vm *vm = &fpriv->vm;
164 struct amdgpu_bo_va *bo_va;
165 struct mm_struct *mm;
168 mm = amdgpu_ttm_tt_get_usermm(abo->tbo.ttm);
169 if (mm && mm != current->mm)
172 if (abo->flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID &&
173 abo->tbo.base.resv != vm->root.bo->tbo.base.resv)
176 r = amdgpu_bo_reserve(abo, false);
180 bo_va = amdgpu_vm_bo_find(vm, abo);
182 bo_va = amdgpu_vm_bo_add(adev, vm, abo);
186 amdgpu_bo_unreserve(abo);
190 static void amdgpu_gem_object_close(struct drm_gem_object *obj,
191 struct drm_file *file_priv)
193 struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
194 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
195 struct amdgpu_fpriv *fpriv = file_priv->driver_priv;
196 struct amdgpu_vm *vm = &fpriv->vm;
198 struct amdgpu_bo_list_entry vm_pd;
199 struct list_head list, duplicates;
200 struct dma_fence *fence = NULL;
201 struct ttm_validate_buffer tv;
202 struct ww_acquire_ctx ticket;
203 struct amdgpu_bo_va *bo_va;
206 INIT_LIST_HEAD(&list);
207 INIT_LIST_HEAD(&duplicates);
211 list_add(&tv.head, &list);
213 amdgpu_vm_get_pd_bo(vm, &list, &vm_pd);
215 r = ttm_eu_reserve_buffers(&ticket, &list, false, &duplicates);
217 dev_err(adev->dev, "leaking bo va because "
218 "we fail to reserve bo (%ld)\n", r);
221 bo_va = amdgpu_vm_bo_find(vm, bo);
222 if (!bo_va || --bo_va->ref_count)
225 amdgpu_vm_bo_rmv(adev, bo_va);
226 if (!amdgpu_vm_ready(vm))
229 fence = dma_resv_excl_fence(bo->tbo.base.resv);
231 amdgpu_bo_fence(bo, fence, true);
235 r = amdgpu_vm_clear_freed(adev, vm, &fence);
239 amdgpu_bo_fence(bo, fence, true);
240 dma_fence_put(fence);
244 dev_err(adev->dev, "failed to clear page "
245 "tables on GEM object close (%ld)\n", r);
246 ttm_eu_backoff_reservation(&ticket, &list);
249 static int amdgpu_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
251 struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
253 if (amdgpu_ttm_tt_get_usermm(bo->tbo.ttm))
255 if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)
258 /* Workaround for Thunk bug creating PROT_NONE,MAP_PRIVATE mappings
259 * for debugger access to invisible VRAM. Should have used MAP_SHARED
260 * instead. Clearing VM_MAYWRITE prevents the mapping from ever
261 * becoming writable and makes is_cow_mapping(vm_flags) false.
263 if (is_cow_mapping(vma->vm_flags) &&
264 !(vma->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)))
265 vma->vm_flags &= ~VM_MAYWRITE;
267 return drm_gem_ttm_mmap(obj, vma);
270 static const struct drm_gem_object_funcs amdgpu_gem_object_funcs = {
271 .free = amdgpu_gem_object_free,
272 .open = amdgpu_gem_object_open,
273 .close = amdgpu_gem_object_close,
274 .export = amdgpu_gem_prime_export,
275 .vmap = drm_gem_ttm_vmap,
276 .vunmap = drm_gem_ttm_vunmap,
277 .mmap = amdgpu_gem_object_mmap,
278 .vm_ops = &amdgpu_gem_vm_ops,
284 int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data,
285 struct drm_file *filp)
287 struct amdgpu_device *adev = drm_to_adev(dev);
288 struct amdgpu_fpriv *fpriv = filp->driver_priv;
289 struct amdgpu_vm *vm = &fpriv->vm;
290 union drm_amdgpu_gem_create *args = data;
291 uint64_t flags = args->in.domain_flags;
292 uint64_t size = args->in.bo_size;
293 struct dma_resv *resv = NULL;
294 struct drm_gem_object *gobj;
295 uint32_t handle, initial_domain;
298 /* reject invalid gem flags */
299 if (flags & ~(AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED |
300 AMDGPU_GEM_CREATE_NO_CPU_ACCESS |
301 AMDGPU_GEM_CREATE_CPU_GTT_USWC |
302 AMDGPU_GEM_CREATE_VRAM_CLEARED |
303 AMDGPU_GEM_CREATE_VM_ALWAYS_VALID |
304 AMDGPU_GEM_CREATE_EXPLICIT_SYNC |
305 AMDGPU_GEM_CREATE_ENCRYPTED))
309 /* reject invalid gem domains */
310 if (args->in.domains & ~AMDGPU_GEM_DOMAIN_MASK)
313 if (!amdgpu_is_tmz(adev) && (flags & AMDGPU_GEM_CREATE_ENCRYPTED)) {
314 DRM_NOTE_ONCE("Cannot allocate secure buffer since TMZ is disabled\n");
318 /* create a gem object to contain this object in */
319 if (args->in.domains & (AMDGPU_GEM_DOMAIN_GDS |
320 AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA)) {
321 if (flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID) {
322 /* if gds bo is created from user space, it must be
325 DRM_ERROR("GDS bo cannot be per-vm-bo\n");
328 flags |= AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
331 if (flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID) {
332 r = amdgpu_bo_reserve(vm->root.bo, false);
336 resv = vm->root.bo->tbo.base.resv;
339 initial_domain = (u32)(0xffffffff & args->in.domains);
341 r = amdgpu_gem_object_create(adev, size, args->in.alignment,
343 flags, ttm_bo_type_device, resv, &gobj);
345 if (r != -ERESTARTSYS) {
346 if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) {
347 flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
351 if (initial_domain == AMDGPU_GEM_DOMAIN_VRAM) {
352 initial_domain |= AMDGPU_GEM_DOMAIN_GTT;
355 DRM_DEBUG("Failed to allocate GEM object (%llu, %d, %llu, %d)\n",
356 size, initial_domain, args->in.alignment, r);
361 if (flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID) {
363 struct amdgpu_bo *abo = gem_to_amdgpu_bo(gobj);
365 abo->parent = amdgpu_bo_ref(vm->root.bo);
367 amdgpu_bo_unreserve(vm->root.bo);
372 r = drm_gem_handle_create(filp, gobj, &handle);
373 /* drop reference from allocate - handle holds it now */
374 drm_gem_object_put(gobj);
378 memset(args, 0, sizeof(*args));
379 args->out.handle = handle;
383 int amdgpu_gem_userptr_ioctl(struct drm_device *dev, void *data,
384 struct drm_file *filp)
386 struct ttm_operation_ctx ctx = { true, false };
387 struct amdgpu_device *adev = drm_to_adev(dev);
388 struct drm_amdgpu_gem_userptr *args = data;
389 struct drm_gem_object *gobj;
390 struct amdgpu_bo *bo;
394 args->addr = untagged_addr(args->addr);
396 if (offset_in_page(args->addr | args->size))
399 /* reject unknown flag values */
400 if (args->flags & ~(AMDGPU_GEM_USERPTR_READONLY |
401 AMDGPU_GEM_USERPTR_ANONONLY | AMDGPU_GEM_USERPTR_VALIDATE |
402 AMDGPU_GEM_USERPTR_REGISTER))
405 if (!(args->flags & AMDGPU_GEM_USERPTR_READONLY) &&
406 !(args->flags & AMDGPU_GEM_USERPTR_REGISTER)) {
408 /* if we want to write to it we must install a MMU notifier */
412 /* create a gem object to contain this object in */
413 r = amdgpu_gem_object_create(adev, args->size, 0, AMDGPU_GEM_DOMAIN_CPU,
414 0, ttm_bo_type_device, NULL, &gobj);
418 bo = gem_to_amdgpu_bo(gobj);
419 bo->preferred_domains = AMDGPU_GEM_DOMAIN_GTT;
420 bo->allowed_domains = AMDGPU_GEM_DOMAIN_GTT;
421 r = amdgpu_ttm_tt_set_userptr(&bo->tbo, args->addr, args->flags);
425 if (args->flags & AMDGPU_GEM_USERPTR_REGISTER) {
426 r = amdgpu_mn_register(bo, args->addr);
431 if (args->flags & AMDGPU_GEM_USERPTR_VALIDATE) {
432 r = amdgpu_ttm_tt_get_user_pages(bo, bo->tbo.ttm->pages);
436 r = amdgpu_bo_reserve(bo, true);
438 goto user_pages_done;
440 amdgpu_bo_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_GTT);
441 r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
442 amdgpu_bo_unreserve(bo);
444 goto user_pages_done;
447 r = drm_gem_handle_create(filp, gobj, &handle);
449 goto user_pages_done;
451 args->handle = handle;
454 if (args->flags & AMDGPU_GEM_USERPTR_VALIDATE)
455 amdgpu_ttm_tt_get_user_pages_done(bo->tbo.ttm);
458 drm_gem_object_put(gobj);
463 int amdgpu_mode_dumb_mmap(struct drm_file *filp,
464 struct drm_device *dev,
465 uint32_t handle, uint64_t *offset_p)
467 struct drm_gem_object *gobj;
468 struct amdgpu_bo *robj;
470 gobj = drm_gem_object_lookup(filp, handle);
474 robj = gem_to_amdgpu_bo(gobj);
475 if (amdgpu_ttm_tt_get_usermm(robj->tbo.ttm) ||
476 (robj->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)) {
477 drm_gem_object_put(gobj);
480 *offset_p = amdgpu_bo_mmap_offset(robj);
481 drm_gem_object_put(gobj);
485 int amdgpu_gem_mmap_ioctl(struct drm_device *dev, void *data,
486 struct drm_file *filp)
488 union drm_amdgpu_gem_mmap *args = data;
489 uint32_t handle = args->in.handle;
490 memset(args, 0, sizeof(*args));
491 return amdgpu_mode_dumb_mmap(filp, dev, handle, &args->out.addr_ptr);
495 * amdgpu_gem_timeout - calculate jiffies timeout from absolute value
497 * @timeout_ns: timeout in ns
499 * Calculate the timeout in jiffies from an absolute timeout in ns.
501 unsigned long amdgpu_gem_timeout(uint64_t timeout_ns)
503 unsigned long timeout_jiffies;
506 /* clamp timeout if it's to large */
507 if (((int64_t)timeout_ns) < 0)
508 return MAX_SCHEDULE_TIMEOUT;
510 timeout = ktime_sub(ns_to_ktime(timeout_ns), ktime_get());
511 if (ktime_to_ns(timeout) < 0)
514 timeout_jiffies = nsecs_to_jiffies(ktime_to_ns(timeout));
515 /* clamp timeout to avoid unsigned-> signed overflow */
516 if (timeout_jiffies > MAX_SCHEDULE_TIMEOUT )
517 return MAX_SCHEDULE_TIMEOUT - 1;
519 return timeout_jiffies;
522 int amdgpu_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
523 struct drm_file *filp)
525 union drm_amdgpu_gem_wait_idle *args = data;
526 struct drm_gem_object *gobj;
527 struct amdgpu_bo *robj;
528 uint32_t handle = args->in.handle;
529 unsigned long timeout = amdgpu_gem_timeout(args->in.timeout);
533 gobj = drm_gem_object_lookup(filp, handle);
537 robj = gem_to_amdgpu_bo(gobj);
538 ret = dma_resv_wait_timeout(robj->tbo.base.resv, true, true, timeout);
540 /* ret == 0 means not signaled,
541 * ret > 0 means signaled
542 * ret < 0 means interrupted before timeout
545 memset(args, 0, sizeof(*args));
546 args->out.status = (ret == 0);
550 drm_gem_object_put(gobj);
554 int amdgpu_gem_metadata_ioctl(struct drm_device *dev, void *data,
555 struct drm_file *filp)
557 struct drm_amdgpu_gem_metadata *args = data;
558 struct drm_gem_object *gobj;
559 struct amdgpu_bo *robj;
562 DRM_DEBUG("%d \n", args->handle);
563 gobj = drm_gem_object_lookup(filp, args->handle);
566 robj = gem_to_amdgpu_bo(gobj);
568 r = amdgpu_bo_reserve(robj, false);
569 if (unlikely(r != 0))
572 if (args->op == AMDGPU_GEM_METADATA_OP_GET_METADATA) {
573 amdgpu_bo_get_tiling_flags(robj, &args->data.tiling_info);
574 r = amdgpu_bo_get_metadata(robj, args->data.data,
575 sizeof(args->data.data),
576 &args->data.data_size_bytes,
578 } else if (args->op == AMDGPU_GEM_METADATA_OP_SET_METADATA) {
579 if (args->data.data_size_bytes > sizeof(args->data.data)) {
583 r = amdgpu_bo_set_tiling_flags(robj, args->data.tiling_info);
585 r = amdgpu_bo_set_metadata(robj, args->data.data,
586 args->data.data_size_bytes,
591 amdgpu_bo_unreserve(robj);
593 drm_gem_object_put(gobj);
598 * amdgpu_gem_va_update_vm -update the bo_va in its VM
600 * @adev: amdgpu_device pointer
602 * @bo_va: bo_va to update
603 * @operation: map, unmap or clear
605 * Update the bo_va directly after setting its address. Errors are not
606 * vital here, so they are not reported back to userspace.
608 static void amdgpu_gem_va_update_vm(struct amdgpu_device *adev,
609 struct amdgpu_vm *vm,
610 struct amdgpu_bo_va *bo_va,
615 if (!amdgpu_vm_ready(vm))
618 r = amdgpu_vm_clear_freed(adev, vm, NULL);
622 if (operation == AMDGPU_VA_OP_MAP ||
623 operation == AMDGPU_VA_OP_REPLACE) {
624 r = amdgpu_vm_bo_update(adev, bo_va, false, NULL);
629 r = amdgpu_vm_update_pdes(adev, vm, false);
632 if (r && r != -ERESTARTSYS)
633 DRM_ERROR("Couldn't update BO_VA (%d)\n", r);
637 * amdgpu_gem_va_map_flags - map GEM UAPI flags into hardware flags
639 * @adev: amdgpu_device pointer
640 * @flags: GEM UAPI flags
642 * Returns the GEM UAPI flags mapped into hardware for the ASIC.
644 uint64_t amdgpu_gem_va_map_flags(struct amdgpu_device *adev, uint32_t flags)
646 uint64_t pte_flag = 0;
648 if (flags & AMDGPU_VM_PAGE_EXECUTABLE)
649 pte_flag |= AMDGPU_PTE_EXECUTABLE;
650 if (flags & AMDGPU_VM_PAGE_READABLE)
651 pte_flag |= AMDGPU_PTE_READABLE;
652 if (flags & AMDGPU_VM_PAGE_WRITEABLE)
653 pte_flag |= AMDGPU_PTE_WRITEABLE;
654 if (flags & AMDGPU_VM_PAGE_PRT)
655 pte_flag |= AMDGPU_PTE_PRT;
657 if (adev->gmc.gmc_funcs->map_mtype)
658 pte_flag |= amdgpu_gmc_map_mtype(adev,
659 flags & AMDGPU_VM_MTYPE_MASK);
664 int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
665 struct drm_file *filp)
667 const uint32_t valid_flags = AMDGPU_VM_DELAY_UPDATE |
668 AMDGPU_VM_PAGE_READABLE | AMDGPU_VM_PAGE_WRITEABLE |
669 AMDGPU_VM_PAGE_EXECUTABLE | AMDGPU_VM_MTYPE_MASK;
670 const uint32_t prt_flags = AMDGPU_VM_DELAY_UPDATE |
673 struct drm_amdgpu_gem_va *args = data;
674 struct drm_gem_object *gobj;
675 struct amdgpu_device *adev = drm_to_adev(dev);
676 struct amdgpu_fpriv *fpriv = filp->driver_priv;
677 struct amdgpu_bo *abo;
678 struct amdgpu_bo_va *bo_va;
679 struct amdgpu_bo_list_entry vm_pd;
680 struct ttm_validate_buffer tv;
681 struct ww_acquire_ctx ticket;
682 struct list_head list, duplicates;
687 if (args->va_address < AMDGPU_VA_RESERVED_SIZE) {
689 "va_address 0x%LX is in reserved area 0x%LX\n",
690 args->va_address, AMDGPU_VA_RESERVED_SIZE);
694 if (args->va_address >= AMDGPU_GMC_HOLE_START &&
695 args->va_address < AMDGPU_GMC_HOLE_END) {
697 "va_address 0x%LX is in VA hole 0x%LX-0x%LX\n",
698 args->va_address, AMDGPU_GMC_HOLE_START,
699 AMDGPU_GMC_HOLE_END);
703 args->va_address &= AMDGPU_GMC_HOLE_MASK;
705 vm_size = adev->vm_manager.max_pfn * AMDGPU_GPU_PAGE_SIZE;
706 vm_size -= AMDGPU_VA_RESERVED_SIZE;
707 if (args->va_address + args->map_size > vm_size) {
709 "va_address 0x%llx is in top reserved area 0x%llx\n",
710 args->va_address + args->map_size, vm_size);
714 if ((args->flags & ~valid_flags) && (args->flags & ~prt_flags)) {
715 dev_dbg(dev->dev, "invalid flags combination 0x%08X\n",
720 switch (args->operation) {
721 case AMDGPU_VA_OP_MAP:
722 case AMDGPU_VA_OP_UNMAP:
723 case AMDGPU_VA_OP_CLEAR:
724 case AMDGPU_VA_OP_REPLACE:
727 dev_dbg(dev->dev, "unsupported operation %d\n",
732 INIT_LIST_HEAD(&list);
733 INIT_LIST_HEAD(&duplicates);
734 if ((args->operation != AMDGPU_VA_OP_CLEAR) &&
735 !(args->flags & AMDGPU_VM_PAGE_PRT)) {
736 gobj = drm_gem_object_lookup(filp, args->handle);
739 abo = gem_to_amdgpu_bo(gobj);
741 if (abo->flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID)
745 list_add(&tv.head, &list);
751 amdgpu_vm_get_pd_bo(&fpriv->vm, &list, &vm_pd);
753 r = ttm_eu_reserve_buffers(&ticket, &list, true, &duplicates);
758 bo_va = amdgpu_vm_bo_find(&fpriv->vm, abo);
763 } else if (args->operation != AMDGPU_VA_OP_CLEAR) {
764 bo_va = fpriv->prt_va;
769 switch (args->operation) {
770 case AMDGPU_VA_OP_MAP:
771 va_flags = amdgpu_gem_va_map_flags(adev, args->flags);
772 r = amdgpu_vm_bo_map(adev, bo_va, args->va_address,
773 args->offset_in_bo, args->map_size,
776 case AMDGPU_VA_OP_UNMAP:
777 r = amdgpu_vm_bo_unmap(adev, bo_va, args->va_address);
780 case AMDGPU_VA_OP_CLEAR:
781 r = amdgpu_vm_bo_clear_mappings(adev, &fpriv->vm,
785 case AMDGPU_VA_OP_REPLACE:
786 va_flags = amdgpu_gem_va_map_flags(adev, args->flags);
787 r = amdgpu_vm_bo_replace_map(adev, bo_va, args->va_address,
788 args->offset_in_bo, args->map_size,
794 if (!r && !(args->flags & AMDGPU_VM_DELAY_UPDATE) && !amdgpu_vm_debug)
795 amdgpu_gem_va_update_vm(adev, &fpriv->vm, bo_va,
799 ttm_eu_backoff_reservation(&ticket, &list);
802 drm_gem_object_put(gobj);
806 int amdgpu_gem_op_ioctl(struct drm_device *dev, void *data,
807 struct drm_file *filp)
809 struct amdgpu_device *adev = drm_to_adev(dev);
810 struct drm_amdgpu_gem_op *args = data;
811 struct drm_gem_object *gobj;
812 struct amdgpu_vm_bo_base *base;
813 struct amdgpu_bo *robj;
816 gobj = drm_gem_object_lookup(filp, args->handle);
820 robj = gem_to_amdgpu_bo(gobj);
822 r = amdgpu_bo_reserve(robj, false);
827 case AMDGPU_GEM_OP_GET_GEM_CREATE_INFO: {
828 struct drm_amdgpu_gem_create_in info;
829 void __user *out = u64_to_user_ptr(args->value);
831 info.bo_size = robj->tbo.base.size;
832 info.alignment = robj->tbo.page_alignment << PAGE_SHIFT;
833 info.domains = robj->preferred_domains;
834 info.domain_flags = robj->flags;
835 amdgpu_bo_unreserve(robj);
836 if (copy_to_user(out, &info, sizeof(info)))
840 case AMDGPU_GEM_OP_SET_PLACEMENT:
841 if (robj->tbo.base.import_attach &&
842 args->value & AMDGPU_GEM_DOMAIN_VRAM) {
844 amdgpu_bo_unreserve(robj);
847 if (amdgpu_ttm_tt_get_usermm(robj->tbo.ttm)) {
849 amdgpu_bo_unreserve(robj);
852 for (base = robj->vm_bo; base; base = base->next)
853 if (amdgpu_xgmi_same_hive(amdgpu_ttm_adev(robj->tbo.bdev),
854 amdgpu_ttm_adev(base->vm->root.bo->tbo.bdev))) {
856 amdgpu_bo_unreserve(robj);
861 robj->preferred_domains = args->value & (AMDGPU_GEM_DOMAIN_VRAM |
862 AMDGPU_GEM_DOMAIN_GTT |
863 AMDGPU_GEM_DOMAIN_CPU);
864 robj->allowed_domains = robj->preferred_domains;
865 if (robj->allowed_domains == AMDGPU_GEM_DOMAIN_VRAM)
866 robj->allowed_domains |= AMDGPU_GEM_DOMAIN_GTT;
868 if (robj->flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID)
869 amdgpu_vm_bo_invalidate(adev, robj, true);
871 amdgpu_bo_unreserve(robj);
874 amdgpu_bo_unreserve(robj);
879 drm_gem_object_put(gobj);
883 int amdgpu_mode_dumb_create(struct drm_file *file_priv,
884 struct drm_device *dev,
885 struct drm_mode_create_dumb *args)
887 struct amdgpu_device *adev = drm_to_adev(dev);
888 struct drm_gem_object *gobj;
890 u64 flags = AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED |
891 AMDGPU_GEM_CREATE_CPU_GTT_USWC;
896 * The buffer returned from this function should be cleared, but
897 * it can only be done if the ring is enabled or we'll fail to
900 if (adev->mman.buffer_funcs_enabled)
901 flags |= AMDGPU_GEM_CREATE_VRAM_CLEARED;
903 args->pitch = amdgpu_align_pitch(adev, args->width,
904 DIV_ROUND_UP(args->bpp, 8), 0);
905 args->size = (u64)args->pitch * args->height;
906 args->size = ALIGN(args->size, PAGE_SIZE);
907 domain = amdgpu_bo_get_preferred_domain(adev,
908 amdgpu_display_supported_domains(adev, flags));
909 r = amdgpu_gem_object_create(adev, args->size, 0, domain, flags,
910 ttm_bo_type_device, NULL, &gobj);
914 r = drm_gem_handle_create(file_priv, gobj, &handle);
915 /* drop reference from allocate - handle holds it now */
916 drm_gem_object_put(gobj);
920 args->handle = handle;
924 #if defined(CONFIG_DEBUG_FS)
925 static int amdgpu_debugfs_gem_info_show(struct seq_file *m, void *unused)
927 struct amdgpu_device *adev = (struct amdgpu_device *)m->private;
928 struct drm_device *dev = adev_to_drm(adev);
929 struct drm_file *file;
932 r = mutex_lock_interruptible(&dev->filelist_mutex);
936 list_for_each_entry(file, &dev->filelist, lhead) {
937 struct task_struct *task;
938 struct drm_gem_object *gobj;
942 * Although we have a valid reference on file->pid, that does
943 * not guarantee that the task_struct who called get_pid() is
944 * still alive (e.g. get_pid(current) => fork() => exit()).
945 * Therefore, we need to protect this ->comm access using RCU.
948 task = pid_task(file->pid, PIDTYPE_PID);
949 seq_printf(m, "pid %8d command %s:\n", pid_nr(file->pid),
950 task ? task->comm : "<unknown>");
953 spin_lock(&file->table_lock);
954 idr_for_each_entry(&file->object_idr, gobj, id) {
955 struct amdgpu_bo *bo = gem_to_amdgpu_bo(gobj);
957 amdgpu_bo_print_info(id, bo, m);
959 spin_unlock(&file->table_lock);
962 mutex_unlock(&dev->filelist_mutex);
966 DEFINE_SHOW_ATTRIBUTE(amdgpu_debugfs_gem_info);
970 void amdgpu_debugfs_gem_init(struct amdgpu_device *adev)
972 #if defined(CONFIG_DEBUG_FS)
973 struct drm_minor *minor = adev_to_drm(adev)->primary;
974 struct dentry *root = minor->debugfs_root;
976 debugfs_create_file("amdgpu_gem_info", 0444, root, adev,
977 &amdgpu_debugfs_gem_info_fops);