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 * $FreeBSD: head/sys/dev/drm2/radeon/radeon_gem.c 254885 2013-08-25 19:37:15Z dumbbell $
32 #include <uapi_drm/radeon_drm.h>
34 #include "radeon_gem.h"
36 void radeon_gem_object_free(struct drm_gem_object *gobj)
38 struct radeon_bo *robj = gem_to_radeon_bo(gobj);
42 if (robj->gem_base.import_attach)
43 drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg);
44 #endif /* DUMBBELL_WIP */
45 radeon_bo_unref(&robj);
49 int radeon_gem_object_create(struct radeon_device *rdev, int size,
50 int alignment, int initial_domain,
51 bool discardable, bool kernel,
52 struct drm_gem_object **obj)
54 struct radeon_bo *robj;
55 unsigned long max_size;
59 /* At least align on page size */
60 if (alignment < PAGE_SIZE) {
61 alignment = PAGE_SIZE;
64 /* maximun bo size is the minimun btw visible vram and gtt size */
65 max_size = min(rdev->mc.visible_vram_size, rdev->mc.gtt_size);
66 if (size > max_size) {
67 DRM_ERROR("%s:%d alloc size %dMb bigger than %ldMb limit\n",
68 __func__, __LINE__, size >> 20, max_size >> 20);
73 r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, NULL, &robj);
75 if (r != -ERESTARTSYS) {
76 if (initial_domain == RADEON_GEM_DOMAIN_VRAM) {
77 initial_domain |= RADEON_GEM_DOMAIN_GTT;
80 DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n",
81 size, initial_domain, alignment, r);
85 *obj = &robj->gem_base;
86 robj->pid = curproc ? curproc->p_pid : 0;
88 spin_lock(&rdev->gem.mutex);
89 list_add_tail(&robj->list, &rdev->gem.objects);
90 spin_unlock(&rdev->gem.mutex);
95 static int radeon_gem_set_domain(struct drm_gem_object *gobj,
96 uint32_t rdomain, uint32_t wdomain)
98 struct radeon_bo *robj;
102 /* FIXME: reeimplement */
103 robj = gem_to_radeon_bo(gobj);
104 /* work out where to validate the buffer to */
111 DRM_ERROR("Set domain without domain !\n");
114 if (domain == RADEON_GEM_DOMAIN_CPU) {
115 /* Asking for cpu access wait for object idle */
116 r = radeon_bo_wait(robj, NULL, false);
118 DRM_ERROR("Failed to wait for object !\n");
125 int radeon_gem_init(struct radeon_device *rdev)
127 INIT_LIST_HEAD(&rdev->gem.objects);
131 void radeon_gem_fini(struct radeon_device *rdev)
133 radeon_bo_force_delete(rdev);
137 * Call from drm_gem_handle_create which appear in both new and open ioctl
140 int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
142 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
143 struct radeon_device *rdev = rbo->rdev;
144 struct radeon_fpriv *fpriv = file_priv->driver_priv;
145 struct radeon_vm *vm = &fpriv->vm;
146 struct radeon_bo_va *bo_va;
149 if (rdev->family < CHIP_CAYMAN) {
153 r = radeon_bo_reserve(rbo, false);
158 bo_va = radeon_vm_bo_find(vm, rbo);
160 bo_va = radeon_vm_bo_add(rdev, vm, rbo);
164 radeon_bo_unreserve(rbo);
169 void radeon_gem_object_close(struct drm_gem_object *obj,
170 struct drm_file *file_priv)
172 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
173 struct radeon_device *rdev = rbo->rdev;
174 struct radeon_fpriv *fpriv = file_priv->driver_priv;
175 struct radeon_vm *vm = &fpriv->vm;
176 struct radeon_bo_va *bo_va;
179 if (rdev->family < CHIP_CAYMAN) {
183 r = radeon_bo_reserve(rbo, true);
185 dev_err(rdev->dev, "leaking bo va because "
186 "we fail to reserve bo (%d)\n", r);
189 bo_va = radeon_vm_bo_find(vm, rbo);
191 if (--bo_va->ref_count == 0) {
192 radeon_vm_bo_rmv(rdev, bo_va);
195 radeon_bo_unreserve(rbo);
198 static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r)
201 r = radeon_gpu_reset(rdev);
211 int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
212 struct drm_file *filp)
214 struct radeon_device *rdev = dev->dev_private;
215 struct drm_radeon_gem_info *args = data;
216 struct ttm_mem_type_manager *man;
219 man = &rdev->mman.bdev.man[TTM_PL_VRAM];
221 args->vram_size = rdev->mc.real_vram_size;
222 args->vram_visible = (u64)man->size << PAGE_SHIFT;
223 if (rdev->stollen_vga_memory)
224 args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory);
225 args->vram_visible -= radeon_fbdev_total_size(rdev);
226 args->gart_size = rdev->mc.gtt_size - 4096 - RADEON_IB_POOL_SIZE*64*1024;
227 for(i = 0; i < RADEON_NUM_RINGS; ++i)
228 args->gart_size -= rdev->ring[i].ring_size;
232 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data,
233 struct drm_file *filp)
235 /* TODO: implement */
236 DRM_ERROR("unimplemented %s\n", __func__);
240 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data,
241 struct drm_file *filp)
243 /* TODO: implement */
244 DRM_ERROR("unimplemented %s\n", __func__);
248 int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
249 struct drm_file *filp)
251 struct radeon_device *rdev = dev->dev_private;
252 struct drm_radeon_gem_create *args = data;
253 struct drm_gem_object *gobj;
257 lockmgr(&rdev->exclusive_lock, LK_SHARED);
258 /* create a gem object to contain this object in */
259 args->size = roundup(args->size, PAGE_SIZE);
260 r = radeon_gem_object_create(rdev, args->size, args->alignment,
261 args->initial_domain, false,
264 if (r == -ERESTARTSYS)
266 lockmgr(&rdev->exclusive_lock, LK_RELEASE);
267 r = radeon_gem_handle_lockup(rdev, r);
271 r = drm_gem_handle_create(filp, gobj, &handle);
272 /* drop reference from allocate - handle holds it now */
273 drm_gem_object_unreference_unlocked(gobj);
275 lockmgr(&rdev->exclusive_lock, LK_RELEASE);
276 r = radeon_gem_handle_lockup(rdev, r);
279 args->handle = handle;
280 lockmgr(&rdev->exclusive_lock, LK_RELEASE);
284 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
285 struct drm_file *filp)
287 /* transition the BO to a domain -
288 * just validate the BO into a certain domain */
289 struct radeon_device *rdev = dev->dev_private;
290 struct drm_radeon_gem_set_domain *args = data;
291 struct drm_gem_object *gobj;
292 struct radeon_bo *robj;
295 /* for now if someone requests domain CPU -
296 * just make sure the buffer is finished with */
297 lockmgr(&rdev->exclusive_lock, LK_SHARED);
299 /* just do a BO wait for now */
300 gobj = drm_gem_object_lookup(dev, filp, args->handle);
302 lockmgr(&rdev->exclusive_lock, LK_RELEASE);
305 robj = gem_to_radeon_bo(gobj);
307 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain);
309 drm_gem_object_unreference_unlocked(gobj);
310 lockmgr(&rdev->exclusive_lock, LK_RELEASE);
311 r = radeon_gem_handle_lockup(robj->rdev, r);
315 int radeon_mode_dumb_mmap(struct drm_file *filp,
316 struct drm_device *dev,
317 uint32_t handle, uint64_t *offset_p)
319 struct drm_gem_object *gobj;
320 struct radeon_bo *robj;
322 gobj = drm_gem_object_lookup(dev, filp, handle);
326 robj = gem_to_radeon_bo(gobj);
327 *offset_p = radeon_bo_mmap_offset(robj);
328 drm_gem_object_unreference_unlocked(gobj);
332 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
333 struct drm_file *filp)
335 struct drm_radeon_gem_mmap *args = data;
337 return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr);
340 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
341 struct drm_file *filp)
343 struct radeon_device *rdev = dev->dev_private;
344 struct drm_radeon_gem_busy *args = data;
345 struct drm_gem_object *gobj;
346 struct radeon_bo *robj;
348 uint32_t cur_placement = 0;
350 gobj = drm_gem_object_lookup(dev, filp, args->handle);
354 robj = gem_to_radeon_bo(gobj);
355 r = radeon_bo_wait(robj, &cur_placement, true);
356 switch (cur_placement) {
358 args->domain = RADEON_GEM_DOMAIN_VRAM;
361 args->domain = RADEON_GEM_DOMAIN_GTT;
364 args->domain = RADEON_GEM_DOMAIN_CPU;
368 drm_gem_object_unreference_unlocked(gobj);
369 r = radeon_gem_handle_lockup(rdev, r);
373 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
374 struct drm_file *filp)
376 struct radeon_device *rdev = dev->dev_private;
377 struct drm_radeon_gem_wait_idle *args = data;
378 struct drm_gem_object *gobj;
379 struct radeon_bo *robj;
382 gobj = drm_gem_object_lookup(dev, filp, args->handle);
386 robj = gem_to_radeon_bo(gobj);
387 r = radeon_bo_wait(robj, NULL, false);
388 /* callback hw specific functions if any */
389 if (rdev->asic->ioctl_wait_idle)
390 robj->rdev->asic->ioctl_wait_idle(rdev, robj);
391 drm_gem_object_unreference_unlocked(gobj);
392 if (r == -ERESTARTSYS)
394 r = radeon_gem_handle_lockup(rdev, r);
398 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
399 struct drm_file *filp)
401 struct drm_radeon_gem_set_tiling *args = data;
402 struct drm_gem_object *gobj;
403 struct radeon_bo *robj;
406 DRM_DEBUG("%d \n", args->handle);
407 gobj = drm_gem_object_lookup(dev, filp, args->handle);
410 robj = gem_to_radeon_bo(gobj);
411 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch);
412 drm_gem_object_unreference_unlocked(gobj);
416 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
417 struct drm_file *filp)
419 struct drm_radeon_gem_get_tiling *args = data;
420 struct drm_gem_object *gobj;
421 struct radeon_bo *rbo;
425 gobj = drm_gem_object_lookup(dev, filp, args->handle);
428 rbo = gem_to_radeon_bo(gobj);
429 r = radeon_bo_reserve(rbo, false);
430 if (unlikely(r != 0))
432 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch);
433 radeon_bo_unreserve(rbo);
435 drm_gem_object_unreference_unlocked(gobj);
439 int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
440 struct drm_file *filp)
442 struct drm_radeon_gem_va *args = data;
443 struct drm_gem_object *gobj;
444 struct radeon_device *rdev = dev->dev_private;
445 struct radeon_fpriv *fpriv = filp->driver_priv;
446 struct radeon_bo *rbo;
447 struct radeon_bo_va *bo_va;
451 if (!rdev->vm_manager.enabled) {
452 args->operation = RADEON_VA_RESULT_ERROR;
457 * We don't support vm_id yet, to be sure we don't have have broken
458 * userspace, reject anyone trying to use non 0 value thus moving
459 * forward we can use those fields without breaking existant userspace
462 args->operation = RADEON_VA_RESULT_ERROR;
466 if (args->offset < RADEON_VA_RESERVED_SIZE) {
468 "offset 0x%lX is in reserved area 0x%X\n",
469 (unsigned long)args->offset,
470 RADEON_VA_RESERVED_SIZE);
471 args->operation = RADEON_VA_RESULT_ERROR;
475 /* don't remove, we need to enforce userspace to set the snooped flag
476 * otherwise we will endup with broken userspace and we won't be able
477 * to enable this feature without adding new interface
479 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM;
480 if ((args->flags & invalid_flags)) {
481 dev_err(dev->dev, "invalid flags 0x%08X vs 0x%08X\n",
482 args->flags, invalid_flags);
483 args->operation = RADEON_VA_RESULT_ERROR;
486 if (!(args->flags & RADEON_VM_PAGE_SNOOPED)) {
487 dev_err(dev->dev, "only supported snooped mapping for now\n");
488 args->operation = RADEON_VA_RESULT_ERROR;
492 switch (args->operation) {
494 case RADEON_VA_UNMAP:
497 dev_err(dev->dev, "unsupported operation %d\n",
499 args->operation = RADEON_VA_RESULT_ERROR;
503 gobj = drm_gem_object_lookup(dev, filp, args->handle);
505 args->operation = RADEON_VA_RESULT_ERROR;
508 rbo = gem_to_radeon_bo(gobj);
509 r = radeon_bo_reserve(rbo, false);
511 args->operation = RADEON_VA_RESULT_ERROR;
512 drm_gem_object_unreference_unlocked(gobj);
515 bo_va = radeon_vm_bo_find(&fpriv->vm, rbo);
517 args->operation = RADEON_VA_RESULT_ERROR;
518 drm_gem_object_unreference_unlocked(gobj);
522 switch (args->operation) {
524 if (bo_va->soffset) {
525 args->operation = RADEON_VA_RESULT_VA_EXIST;
526 args->offset = bo_va->soffset;
529 r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags);
531 case RADEON_VA_UNMAP:
532 r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0);
537 args->operation = RADEON_VA_RESULT_OK;
539 args->operation = RADEON_VA_RESULT_ERROR;
542 radeon_bo_unreserve(rbo);
543 drm_gem_object_unreference_unlocked(gobj);
547 int radeon_mode_dumb_create(struct drm_file *file_priv,
548 struct drm_device *dev,
549 struct drm_mode_create_dumb *args)
551 struct radeon_device *rdev = dev->dev_private;
552 struct drm_gem_object *gobj;
556 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8);
557 args->size = args->pitch * args->height;
558 args->size = roundup2(args->size, PAGE_SIZE);
560 r = radeon_gem_object_create(rdev, args->size, 0,
561 RADEON_GEM_DOMAIN_VRAM,
562 false, ttm_bo_type_device,
567 r = drm_gem_handle_create(file_priv, gobj, &handle);
568 /* drop reference from allocate - handle holds it now */
569 drm_gem_object_unreference_unlocked(gobj);
573 args->handle = handle;
577 int radeon_mode_dumb_destroy(struct drm_file *file_priv,
578 struct drm_device *dev,
581 return drm_gem_handle_delete(file_priv, handle);
584 #if defined(CONFIG_DEBUG_FS)
585 static int radeon_debugfs_gem_info(struct seq_file *m, void *data)
587 struct drm_info_node *node = (struct drm_info_node *)m->private;
588 struct drm_device *dev = node->minor->dev;
589 struct radeon_device *rdev = dev->dev_private;
590 struct radeon_bo *rbo;
593 mutex_lock(&rdev->gem.mutex);
594 list_for_each_entry(rbo, &rdev->gem.objects, list) {
596 const char *placement;
598 domain = radeon_mem_type_to_domain(rbo->tbo.mem.mem_type);
600 case RADEON_GEM_DOMAIN_VRAM:
603 case RADEON_GEM_DOMAIN_GTT:
606 case RADEON_GEM_DOMAIN_CPU:
611 seq_printf(m, "bo[0x%08x] %8ldkB %8ldMB %s pid %8ld\n",
612 i, radeon_bo_size(rbo) >> 10, radeon_bo_size(rbo) >> 20,
613 placement, (unsigned long)rbo->pid);
616 mutex_unlock(&rdev->gem.mutex);
620 static struct drm_info_list radeon_debugfs_gem_list[] = {
621 {"radeon_gem_info", &radeon_debugfs_gem_info, 0, NULL},
625 int radeon_gem_debugfs_init(struct radeon_device *rdev)
627 #if defined(CONFIG_DEBUG_FS)
628 return radeon_debugfs_add_files(rdev, radeon_debugfs_gem_list, 1);