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
29 #include <drm/drm_debugfs.h>
30 #include <drm/drm_device.h>
31 #include <drm/drm_file.h>
32 #include <drm/drm_pci.h>
33 #include <drm/radeon_drm.h>
37 void radeon_gem_object_free(struct drm_gem_object *gobj)
39 struct radeon_bo *robj = gem_to_radeon_bo(gobj);
42 radeon_mn_unregister(robj);
43 radeon_bo_unref(&robj);
47 int radeon_gem_object_create(struct radeon_device *rdev, unsigned long size,
48 int alignment, int initial_domain,
49 u32 flags, bool kernel,
50 struct drm_gem_object **obj)
52 struct radeon_bo *robj;
53 unsigned long max_size;
57 /* At least align on page size */
58 if (alignment < PAGE_SIZE) {
59 alignment = PAGE_SIZE;
62 /* Maximum bo size is the unpinned gtt size since we use the gtt to
63 * handle vram to system pool migrations.
65 max_size = rdev->mc.gtt_size - rdev->gart_pin_size;
66 if (size > max_size) {
67 DRM_DEBUG("Allocation size %ldMb bigger than %ldMb limit\n",
68 size >> 20, max_size >> 20);
73 r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain,
74 flags, NULL, NULL, &robj);
76 if (r != -ERESTARTSYS) {
77 if (initial_domain == RADEON_GEM_DOMAIN_VRAM) {
78 initial_domain |= RADEON_GEM_DOMAIN_GTT;
81 DRM_ERROR("Failed to allocate GEM object (%ld, %d, %u, %d)\n",
82 size, initial_domain, alignment, r);
86 *obj = &robj->tbo.base;
87 robj->pid = task_pid_nr(current);
89 mutex_lock(&rdev->gem.mutex);
90 list_add_tail(&robj->list, &rdev->gem.objects);
91 mutex_unlock(&rdev->gem.mutex);
96 static int radeon_gem_set_domain(struct drm_gem_object *gobj,
97 uint32_t rdomain, uint32_t wdomain)
99 struct radeon_bo *robj;
103 /* FIXME: reeimplement */
104 robj = gem_to_radeon_bo(gobj);
105 /* work out where to validate the buffer to */
112 pr_warn("Set domain without domain !\n");
115 if (domain == RADEON_GEM_DOMAIN_CPU) {
116 /* Asking for cpu access wait for object idle */
117 r = reservation_object_wait_timeout_rcu(robj->tbo.base.resv, true, true, 30 * HZ);
121 if (r < 0 && r != -EINTR) {
122 pr_err("Failed to wait for object: %li\n", r);
126 if (domain == RADEON_GEM_DOMAIN_VRAM && robj->prime_shared_count) {
127 /* A BO that is associated with a dma-buf cannot be sensibly migrated to VRAM */
133 int radeon_gem_init(struct radeon_device *rdev)
135 INIT_LIST_HEAD(&rdev->gem.objects);
139 void radeon_gem_fini(struct radeon_device *rdev)
141 radeon_bo_force_delete(rdev);
145 * Call from drm_gem_handle_create which appear in both new and open ioctl
148 int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
150 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
151 struct radeon_device *rdev = rbo->rdev;
152 struct radeon_fpriv *fpriv = file_priv->driver_priv;
153 struct radeon_vm *vm = &fpriv->vm;
154 struct radeon_bo_va *bo_va;
157 if ((rdev->family < CHIP_CAYMAN) ||
158 (!rdev->accel_working)) {
162 r = radeon_bo_reserve(rbo, false);
167 bo_va = radeon_vm_bo_find(vm, rbo);
169 bo_va = radeon_vm_bo_add(rdev, vm, rbo);
173 radeon_bo_unreserve(rbo);
178 void radeon_gem_object_close(struct drm_gem_object *obj,
179 struct drm_file *file_priv)
181 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
182 struct radeon_device *rdev = rbo->rdev;
183 struct radeon_fpriv *fpriv = file_priv->driver_priv;
184 struct radeon_vm *vm = &fpriv->vm;
185 struct radeon_bo_va *bo_va;
188 if ((rdev->family < CHIP_CAYMAN) ||
189 (!rdev->accel_working)) {
193 r = radeon_bo_reserve(rbo, true);
195 dev_err(rdev->dev, "leaking bo va because "
196 "we fail to reserve bo (%d)\n", r);
199 bo_va = radeon_vm_bo_find(vm, rbo);
201 if (--bo_va->ref_count == 0) {
202 radeon_vm_bo_rmv(rdev, bo_va);
205 radeon_bo_unreserve(rbo);
208 static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r)
211 r = radeon_gpu_reset(rdev);
221 int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
222 struct drm_file *filp)
224 struct radeon_device *rdev = dev->dev_private;
225 struct drm_radeon_gem_info *args = data;
226 struct ttm_mem_type_manager *man;
228 man = &rdev->mman.bdev.man[TTM_PL_VRAM];
230 args->vram_size = (u64)man->size << PAGE_SHIFT;
231 args->vram_visible = rdev->mc.visible_vram_size;
232 args->vram_visible -= rdev->vram_pin_size;
233 args->gart_size = rdev->mc.gtt_size;
234 args->gart_size -= rdev->gart_pin_size;
239 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data,
240 struct drm_file *filp)
242 /* TODO: implement */
243 DRM_ERROR("unimplemented %s\n", __func__);
247 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data,
248 struct drm_file *filp)
250 /* TODO: implement */
251 DRM_ERROR("unimplemented %s\n", __func__);
255 int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
256 struct drm_file *filp)
258 struct radeon_device *rdev = dev->dev_private;
259 struct drm_radeon_gem_create *args = data;
260 struct drm_gem_object *gobj;
264 down_read(&rdev->exclusive_lock);
265 /* create a gem object to contain this object in */
266 args->size = roundup(args->size, PAGE_SIZE);
267 r = radeon_gem_object_create(rdev, args->size, args->alignment,
268 args->initial_domain, args->flags,
271 up_read(&rdev->exclusive_lock);
272 r = radeon_gem_handle_lockup(rdev, r);
275 r = drm_gem_handle_create(filp, gobj, &handle);
276 /* drop reference from allocate - handle holds it now */
277 drm_gem_object_put_unlocked(gobj);
279 up_read(&rdev->exclusive_lock);
280 r = radeon_gem_handle_lockup(rdev, r);
283 args->handle = handle;
284 up_read(&rdev->exclusive_lock);
288 int radeon_gem_userptr_ioctl(struct drm_device *dev, void *data,
289 struct drm_file *filp)
291 struct ttm_operation_ctx ctx = { true, false };
292 struct radeon_device *rdev = dev->dev_private;
293 struct drm_radeon_gem_userptr *args = data;
294 struct drm_gem_object *gobj;
295 struct radeon_bo *bo;
299 if (offset_in_page(args->addr | args->size))
302 /* reject unknown flag values */
303 if (args->flags & ~(RADEON_GEM_USERPTR_READONLY |
304 RADEON_GEM_USERPTR_ANONONLY | RADEON_GEM_USERPTR_VALIDATE |
305 RADEON_GEM_USERPTR_REGISTER))
308 if (args->flags & RADEON_GEM_USERPTR_READONLY) {
309 /* readonly pages not tested on older hardware */
310 if (rdev->family < CHIP_R600)
313 } else if (!(args->flags & RADEON_GEM_USERPTR_ANONONLY) ||
314 !(args->flags & RADEON_GEM_USERPTR_REGISTER)) {
316 /* if we want to write to it we must require anonymous
317 memory and install a MMU notifier */
321 down_read(&rdev->exclusive_lock);
323 /* create a gem object to contain this object in */
324 r = radeon_gem_object_create(rdev, args->size, 0,
325 RADEON_GEM_DOMAIN_CPU, 0,
330 bo = gem_to_radeon_bo(gobj);
331 r = radeon_ttm_tt_set_userptr(bo->tbo.ttm, args->addr, args->flags);
335 if (args->flags & RADEON_GEM_USERPTR_REGISTER) {
336 r = radeon_mn_register(bo, args->addr);
341 if (args->flags & RADEON_GEM_USERPTR_VALIDATE) {
342 down_read(¤t->mm->mmap_sem);
343 r = radeon_bo_reserve(bo, true);
345 up_read(¤t->mm->mmap_sem);
349 radeon_ttm_placement_from_domain(bo, RADEON_GEM_DOMAIN_GTT);
350 r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
351 radeon_bo_unreserve(bo);
352 up_read(¤t->mm->mmap_sem);
357 r = drm_gem_handle_create(filp, gobj, &handle);
358 /* drop reference from allocate - handle holds it now */
359 drm_gem_object_put_unlocked(gobj);
363 args->handle = handle;
364 up_read(&rdev->exclusive_lock);
368 drm_gem_object_put_unlocked(gobj);
371 up_read(&rdev->exclusive_lock);
372 r = radeon_gem_handle_lockup(rdev, r);
377 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
378 struct drm_file *filp)
380 /* transition the BO to a domain -
381 * just validate the BO into a certain domain */
382 struct radeon_device *rdev = dev->dev_private;
383 struct drm_radeon_gem_set_domain *args = data;
384 struct drm_gem_object *gobj;
385 struct radeon_bo *robj;
388 /* for now if someone requests domain CPU -
389 * just make sure the buffer is finished with */
390 down_read(&rdev->exclusive_lock);
392 /* just do a BO wait for now */
393 gobj = drm_gem_object_lookup(filp, args->handle);
395 up_read(&rdev->exclusive_lock);
398 robj = gem_to_radeon_bo(gobj);
400 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain);
402 drm_gem_object_put_unlocked(gobj);
403 up_read(&rdev->exclusive_lock);
404 r = radeon_gem_handle_lockup(robj->rdev, r);
408 int radeon_mode_dumb_mmap(struct drm_file *filp,
409 struct drm_device *dev,
410 uint32_t handle, uint64_t *offset_p)
412 struct drm_gem_object *gobj;
413 struct radeon_bo *robj;
415 gobj = drm_gem_object_lookup(filp, handle);
419 robj = gem_to_radeon_bo(gobj);
420 if (radeon_ttm_tt_has_userptr(robj->tbo.ttm)) {
421 drm_gem_object_put_unlocked(gobj);
424 *offset_p = radeon_bo_mmap_offset(robj);
425 drm_gem_object_put_unlocked(gobj);
429 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
430 struct drm_file *filp)
432 struct drm_radeon_gem_mmap *args = data;
434 return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr);
437 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
438 struct drm_file *filp)
440 struct drm_radeon_gem_busy *args = data;
441 struct drm_gem_object *gobj;
442 struct radeon_bo *robj;
444 uint32_t cur_placement = 0;
446 gobj = drm_gem_object_lookup(filp, args->handle);
450 robj = gem_to_radeon_bo(gobj);
452 r = reservation_object_test_signaled_rcu(robj->tbo.base.resv, true);
458 cur_placement = READ_ONCE(robj->tbo.mem.mem_type);
459 args->domain = radeon_mem_type_to_domain(cur_placement);
460 drm_gem_object_put_unlocked(gobj);
464 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
465 struct drm_file *filp)
467 struct radeon_device *rdev = dev->dev_private;
468 struct drm_radeon_gem_wait_idle *args = data;
469 struct drm_gem_object *gobj;
470 struct radeon_bo *robj;
472 uint32_t cur_placement = 0;
475 gobj = drm_gem_object_lookup(filp, args->handle);
479 robj = gem_to_radeon_bo(gobj);
481 ret = reservation_object_wait_timeout_rcu(robj->tbo.base.resv, true, true, 30 * HZ);
487 /* Flush HDP cache via MMIO if necessary */
488 cur_placement = READ_ONCE(robj->tbo.mem.mem_type);
489 if (rdev->asic->mmio_hdp_flush &&
490 radeon_mem_type_to_domain(cur_placement) == RADEON_GEM_DOMAIN_VRAM)
491 robj->rdev->asic->mmio_hdp_flush(rdev);
492 drm_gem_object_put_unlocked(gobj);
493 r = radeon_gem_handle_lockup(rdev, r);
497 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
498 struct drm_file *filp)
500 struct drm_radeon_gem_set_tiling *args = data;
501 struct drm_gem_object *gobj;
502 struct radeon_bo *robj;
505 DRM_DEBUG("%d \n", args->handle);
506 gobj = drm_gem_object_lookup(filp, args->handle);
509 robj = gem_to_radeon_bo(gobj);
510 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch);
511 drm_gem_object_put_unlocked(gobj);
515 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
516 struct drm_file *filp)
518 struct drm_radeon_gem_get_tiling *args = data;
519 struct drm_gem_object *gobj;
520 struct radeon_bo *rbo;
524 gobj = drm_gem_object_lookup(filp, args->handle);
527 rbo = gem_to_radeon_bo(gobj);
528 r = radeon_bo_reserve(rbo, false);
529 if (unlikely(r != 0))
531 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch);
532 radeon_bo_unreserve(rbo);
534 drm_gem_object_put_unlocked(gobj);
539 * radeon_gem_va_update_vm -update the bo_va in its VM
541 * @rdev: radeon_device pointer
542 * @bo_va: bo_va to update
544 * Update the bo_va directly after setting it's address. Errors are not
545 * vital here, so they are not reported back to userspace.
547 static void radeon_gem_va_update_vm(struct radeon_device *rdev,
548 struct radeon_bo_va *bo_va)
550 struct ttm_validate_buffer tv, *entry;
551 struct radeon_bo_list *vm_bos;
552 struct ww_acquire_ctx ticket;
553 struct list_head list;
557 INIT_LIST_HEAD(&list);
559 tv.bo = &bo_va->bo->tbo;
561 list_add(&tv.head, &list);
563 vm_bos = radeon_vm_get_bos(rdev, bo_va->vm, &list);
567 r = ttm_eu_reserve_buffers(&ticket, &list, true, NULL, true);
571 list_for_each_entry(entry, &list, head) {
572 domain = radeon_mem_type_to_domain(entry->bo->mem.mem_type);
573 /* if anything is swapped out don't swap it in here,
574 just abort and wait for the next CS */
575 if (domain == RADEON_GEM_DOMAIN_CPU)
576 goto error_unreserve;
579 mutex_lock(&bo_va->vm->mutex);
580 r = radeon_vm_clear_freed(rdev, bo_va->vm);
585 r = radeon_vm_bo_update(rdev, bo_va, &bo_va->bo->tbo.mem);
588 mutex_unlock(&bo_va->vm->mutex);
591 ttm_eu_backoff_reservation(&ticket, &list);
596 if (r && r != -ERESTARTSYS)
597 DRM_ERROR("Couldn't update BO_VA (%d)\n", r);
600 int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
601 struct drm_file *filp)
603 struct drm_radeon_gem_va *args = data;
604 struct drm_gem_object *gobj;
605 struct radeon_device *rdev = dev->dev_private;
606 struct radeon_fpriv *fpriv = filp->driver_priv;
607 struct radeon_bo *rbo;
608 struct radeon_bo_va *bo_va;
612 if (!rdev->vm_manager.enabled) {
613 args->operation = RADEON_VA_RESULT_ERROR;
618 * We don't support vm_id yet, to be sure we don't have have broken
619 * userspace, reject anyone trying to use non 0 value thus moving
620 * forward we can use those fields without breaking existant userspace
623 args->operation = RADEON_VA_RESULT_ERROR;
627 if (args->offset < RADEON_VA_RESERVED_SIZE) {
628 dev_err(&dev->pdev->dev,
629 "offset 0x%lX is in reserved area 0x%X\n",
630 (unsigned long)args->offset,
631 RADEON_VA_RESERVED_SIZE);
632 args->operation = RADEON_VA_RESULT_ERROR;
636 /* don't remove, we need to enforce userspace to set the snooped flag
637 * otherwise we will endup with broken userspace and we won't be able
638 * to enable this feature without adding new interface
640 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM;
641 if ((args->flags & invalid_flags)) {
642 dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n",
643 args->flags, invalid_flags);
644 args->operation = RADEON_VA_RESULT_ERROR;
648 switch (args->operation) {
650 case RADEON_VA_UNMAP:
653 dev_err(&dev->pdev->dev, "unsupported operation %d\n",
655 args->operation = RADEON_VA_RESULT_ERROR;
659 gobj = drm_gem_object_lookup(filp, args->handle);
661 args->operation = RADEON_VA_RESULT_ERROR;
664 rbo = gem_to_radeon_bo(gobj);
665 r = radeon_bo_reserve(rbo, false);
667 args->operation = RADEON_VA_RESULT_ERROR;
668 drm_gem_object_put_unlocked(gobj);
671 bo_va = radeon_vm_bo_find(&fpriv->vm, rbo);
673 args->operation = RADEON_VA_RESULT_ERROR;
674 radeon_bo_unreserve(rbo);
675 drm_gem_object_put_unlocked(gobj);
679 switch (args->operation) {
681 if (bo_va->it.start) {
682 args->operation = RADEON_VA_RESULT_VA_EXIST;
683 args->offset = bo_va->it.start * RADEON_GPU_PAGE_SIZE;
684 radeon_bo_unreserve(rbo);
687 r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags);
689 case RADEON_VA_UNMAP:
690 r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0);
696 radeon_gem_va_update_vm(rdev, bo_va);
697 args->operation = RADEON_VA_RESULT_OK;
699 args->operation = RADEON_VA_RESULT_ERROR;
702 drm_gem_object_put_unlocked(gobj);
706 int radeon_gem_op_ioctl(struct drm_device *dev, void *data,
707 struct drm_file *filp)
709 struct drm_radeon_gem_op *args = data;
710 struct drm_gem_object *gobj;
711 struct radeon_bo *robj;
714 gobj = drm_gem_object_lookup(filp, args->handle);
718 robj = gem_to_radeon_bo(gobj);
721 if (radeon_ttm_tt_has_userptr(robj->tbo.ttm))
724 r = radeon_bo_reserve(robj, false);
729 case RADEON_GEM_OP_GET_INITIAL_DOMAIN:
730 args->value = robj->initial_domain;
732 case RADEON_GEM_OP_SET_INITIAL_DOMAIN:
733 robj->initial_domain = args->value & (RADEON_GEM_DOMAIN_VRAM |
734 RADEON_GEM_DOMAIN_GTT |
735 RADEON_GEM_DOMAIN_CPU);
741 radeon_bo_unreserve(robj);
743 drm_gem_object_put_unlocked(gobj);
747 int radeon_mode_dumb_create(struct drm_file *file_priv,
748 struct drm_device *dev,
749 struct drm_mode_create_dumb *args)
751 struct radeon_device *rdev = dev->dev_private;
752 struct drm_gem_object *gobj;
756 args->pitch = radeon_align_pitch(rdev, args->width,
757 DIV_ROUND_UP(args->bpp, 8), 0);
758 args->size = args->pitch * args->height;
759 args->size = ALIGN(args->size, PAGE_SIZE);
761 r = radeon_gem_object_create(rdev, args->size, 0,
762 RADEON_GEM_DOMAIN_VRAM, 0,
767 r = drm_gem_handle_create(file_priv, gobj, &handle);
768 /* drop reference from allocate - handle holds it now */
769 drm_gem_object_put_unlocked(gobj);
773 args->handle = handle;
777 #if defined(CONFIG_DEBUG_FS)
778 static int radeon_debugfs_gem_info(struct seq_file *m, void *data)
780 struct drm_info_node *node = (struct drm_info_node *)m->private;
781 struct drm_device *dev = node->minor->dev;
782 struct radeon_device *rdev = dev->dev_private;
783 struct radeon_bo *rbo;
786 mutex_lock(&rdev->gem.mutex);
787 list_for_each_entry(rbo, &rdev->gem.objects, list) {
789 const char *placement;
791 domain = radeon_mem_type_to_domain(rbo->tbo.mem.mem_type);
793 case RADEON_GEM_DOMAIN_VRAM:
796 case RADEON_GEM_DOMAIN_GTT:
799 case RADEON_GEM_DOMAIN_CPU:
804 seq_printf(m, "bo[0x%08x] %8ldkB %8ldMB %s pid %8ld\n",
805 i, radeon_bo_size(rbo) >> 10, radeon_bo_size(rbo) >> 20,
806 placement, (unsigned long)rbo->pid);
809 mutex_unlock(&rdev->gem.mutex);
813 static struct drm_info_list radeon_debugfs_gem_list[] = {
814 {"radeon_gem_info", &radeon_debugfs_gem_info, 0, NULL},
818 int radeon_gem_debugfs_init(struct radeon_device *rdev)
820 #if defined(CONFIG_DEBUG_FS)
821 return radeon_debugfs_add_files(rdev, radeon_debugfs_gem_list, 1);