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/radeon_drm.h>
32 void radeon_gem_object_free(struct drm_gem_object *gobj)
34 struct radeon_bo *robj = gem_to_radeon_bo(gobj);
37 if (robj->gem_base.import_attach)
38 drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg);
39 radeon_bo_unref(&robj);
43 int radeon_gem_object_create(struct radeon_device *rdev, unsigned long size,
44 int alignment, int initial_domain,
45 u32 flags, bool kernel,
46 struct drm_gem_object **obj)
48 struct radeon_bo *robj;
49 unsigned long max_size;
53 /* At least align on page size */
54 if (alignment < PAGE_SIZE) {
55 alignment = PAGE_SIZE;
58 /* Maximum bo size is the unpinned gtt size since we use the gtt to
59 * handle vram to system pool migrations.
61 max_size = rdev->mc.gtt_size - rdev->gart_pin_size;
62 if (size > max_size) {
63 DRM_DEBUG("Allocation size %ldMb bigger than %ldMb limit\n",
64 size >> 20, max_size >> 20);
69 r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain,
72 if (r != -ERESTARTSYS) {
73 if (initial_domain == RADEON_GEM_DOMAIN_VRAM) {
74 initial_domain |= RADEON_GEM_DOMAIN_GTT;
77 DRM_ERROR("Failed to allocate GEM object (%ld, %d, %u, %d)\n",
78 size, initial_domain, alignment, r);
82 *obj = &robj->gem_base;
83 robj->pid = task_pid_nr(current);
85 mutex_lock(&rdev->gem.mutex);
86 list_add_tail(&robj->list, &rdev->gem.objects);
87 mutex_unlock(&rdev->gem.mutex);
92 static int radeon_gem_set_domain(struct drm_gem_object *gobj,
93 uint32_t rdomain, uint32_t wdomain)
95 struct radeon_bo *robj;
99 /* FIXME: reeimplement */
100 robj = gem_to_radeon_bo(gobj);
101 /* work out where to validate the buffer to */
108 printk(KERN_WARNING "Set domain without domain !\n");
111 if (domain == RADEON_GEM_DOMAIN_CPU) {
112 /* Asking for cpu access wait for object idle */
113 r = radeon_bo_wait(robj, NULL, false);
115 printk(KERN_ERR "Failed to wait for object !\n");
122 int radeon_gem_init(struct radeon_device *rdev)
124 INIT_LIST_HEAD(&rdev->gem.objects);
128 void radeon_gem_fini(struct radeon_device *rdev)
130 radeon_bo_force_delete(rdev);
134 * Call from drm_gem_handle_create which appear in both new and open ioctl
137 int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
139 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
140 struct radeon_device *rdev = rbo->rdev;
141 struct radeon_fpriv *fpriv = file_priv->driver_priv;
142 struct radeon_vm *vm = &fpriv->vm;
143 struct radeon_bo_va *bo_va;
146 if (rdev->family < CHIP_CAYMAN) {
150 r = radeon_bo_reserve(rbo, false);
155 bo_va = radeon_vm_bo_find(vm, rbo);
157 bo_va = radeon_vm_bo_add(rdev, vm, rbo);
161 radeon_bo_unreserve(rbo);
166 void radeon_gem_object_close(struct drm_gem_object *obj,
167 struct drm_file *file_priv)
169 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
170 struct radeon_device *rdev = rbo->rdev;
171 struct radeon_fpriv *fpriv = file_priv->driver_priv;
172 struct radeon_vm *vm = &fpriv->vm;
173 struct radeon_bo_va *bo_va;
176 if (rdev->family < CHIP_CAYMAN) {
180 r = radeon_bo_reserve(rbo, true);
182 dev_err(rdev->dev, "leaking bo va because "
183 "we fail to reserve bo (%d)\n", r);
186 bo_va = radeon_vm_bo_find(vm, rbo);
188 if (--bo_va->ref_count == 0) {
189 radeon_vm_bo_rmv(rdev, bo_va);
192 radeon_bo_unreserve(rbo);
195 static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r)
198 r = radeon_gpu_reset(rdev);
208 int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
209 struct drm_file *filp)
211 struct radeon_device *rdev = dev->dev_private;
212 struct drm_radeon_gem_info *args = data;
213 struct ttm_mem_type_manager *man;
215 man = &rdev->mman.bdev.man[TTM_PL_VRAM];
217 args->vram_size = rdev->mc.real_vram_size;
218 args->vram_visible = (u64)man->size << PAGE_SHIFT;
219 args->vram_visible -= rdev->vram_pin_size;
220 args->gart_size = rdev->mc.gtt_size;
221 args->gart_size -= rdev->gart_pin_size;
226 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data,
227 struct drm_file *filp)
229 /* TODO: implement */
230 DRM_ERROR("unimplemented %s\n", __func__);
234 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data,
235 struct drm_file *filp)
237 /* TODO: implement */
238 DRM_ERROR("unimplemented %s\n", __func__);
242 int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
243 struct drm_file *filp)
245 struct radeon_device *rdev = dev->dev_private;
246 struct drm_radeon_gem_create *args = data;
247 struct drm_gem_object *gobj;
251 down_read(&rdev->exclusive_lock);
252 /* create a gem object to contain this object in */
253 args->size = roundup(args->size, PAGE_SIZE);
254 r = radeon_gem_object_create(rdev, args->size, args->alignment,
255 args->initial_domain, args->flags,
258 up_read(&rdev->exclusive_lock);
259 r = radeon_gem_handle_lockup(rdev, r);
262 r = drm_gem_handle_create(filp, gobj, &handle);
263 /* drop reference from allocate - handle holds it now */
264 drm_gem_object_unreference_unlocked(gobj);
266 up_read(&rdev->exclusive_lock);
267 r = radeon_gem_handle_lockup(rdev, r);
270 args->handle = handle;
271 up_read(&rdev->exclusive_lock);
275 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
276 struct drm_file *filp)
278 /* transition the BO to a domain -
279 * just validate the BO into a certain domain */
280 struct radeon_device *rdev = dev->dev_private;
281 struct drm_radeon_gem_set_domain *args = data;
282 struct drm_gem_object *gobj;
283 struct radeon_bo *robj;
286 /* for now if someone requests domain CPU -
287 * just make sure the buffer is finished with */
288 down_read(&rdev->exclusive_lock);
290 /* just do a BO wait for now */
291 gobj = drm_gem_object_lookup(dev, filp, args->handle);
293 up_read(&rdev->exclusive_lock);
296 robj = gem_to_radeon_bo(gobj);
298 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain);
300 drm_gem_object_unreference_unlocked(gobj);
301 up_read(&rdev->exclusive_lock);
302 r = radeon_gem_handle_lockup(robj->rdev, r);
306 int radeon_mode_dumb_mmap(struct drm_file *filp,
307 struct drm_device *dev,
308 uint32_t handle, uint64_t *offset_p)
310 struct drm_gem_object *gobj;
311 struct radeon_bo *robj;
313 gobj = drm_gem_object_lookup(dev, filp, handle);
317 robj = gem_to_radeon_bo(gobj);
318 *offset_p = radeon_bo_mmap_offset(robj);
319 drm_gem_object_unreference_unlocked(gobj);
323 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
324 struct drm_file *filp)
326 struct drm_radeon_gem_mmap *args = data;
328 return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr);
331 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
332 struct drm_file *filp)
334 struct radeon_device *rdev = dev->dev_private;
335 struct drm_radeon_gem_busy *args = data;
336 struct drm_gem_object *gobj;
337 struct radeon_bo *robj;
339 uint32_t cur_placement = 0;
341 gobj = drm_gem_object_lookup(dev, filp, args->handle);
345 robj = gem_to_radeon_bo(gobj);
346 r = radeon_bo_wait(robj, &cur_placement, true);
347 args->domain = radeon_mem_type_to_domain(cur_placement);
348 drm_gem_object_unreference_unlocked(gobj);
349 r = radeon_gem_handle_lockup(rdev, r);
353 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
354 struct drm_file *filp)
356 struct radeon_device *rdev = dev->dev_private;
357 struct drm_radeon_gem_wait_idle *args = data;
358 struct drm_gem_object *gobj;
359 struct radeon_bo *robj;
361 uint32_t cur_placement = 0;
363 gobj = drm_gem_object_lookup(dev, filp, args->handle);
367 robj = gem_to_radeon_bo(gobj);
368 r = radeon_bo_wait(robj, &cur_placement, false);
369 /* Flush HDP cache via MMIO if necessary */
370 if (rdev->asic->mmio_hdp_flush &&
371 radeon_mem_type_to_domain(cur_placement) == RADEON_GEM_DOMAIN_VRAM)
372 robj->rdev->asic->mmio_hdp_flush(rdev);
373 drm_gem_object_unreference_unlocked(gobj);
374 r = radeon_gem_handle_lockup(rdev, r);
378 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
379 struct drm_file *filp)
381 struct drm_radeon_gem_set_tiling *args = data;
382 struct drm_gem_object *gobj;
383 struct radeon_bo *robj;
386 DRM_DEBUG("%d \n", args->handle);
387 gobj = drm_gem_object_lookup(dev, filp, args->handle);
390 robj = gem_to_radeon_bo(gobj);
391 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch);
392 drm_gem_object_unreference_unlocked(gobj);
396 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
397 struct drm_file *filp)
399 struct drm_radeon_gem_get_tiling *args = data;
400 struct drm_gem_object *gobj;
401 struct radeon_bo *rbo;
405 gobj = drm_gem_object_lookup(dev, filp, args->handle);
408 rbo = gem_to_radeon_bo(gobj);
409 r = radeon_bo_reserve(rbo, false);
410 if (unlikely(r != 0))
412 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch);
413 radeon_bo_unreserve(rbo);
415 drm_gem_object_unreference_unlocked(gobj);
419 int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
420 struct drm_file *filp)
422 struct drm_radeon_gem_va *args = data;
423 struct drm_gem_object *gobj;
424 struct radeon_device *rdev = dev->dev_private;
425 struct radeon_fpriv *fpriv = filp->driver_priv;
426 struct radeon_bo *rbo;
427 struct radeon_bo_va *bo_va;
431 if (!rdev->vm_manager.enabled) {
432 args->operation = RADEON_VA_RESULT_ERROR;
437 * We don't support vm_id yet, to be sure we don't have have broken
438 * userspace, reject anyone trying to use non 0 value thus moving
439 * forward we can use those fields without breaking existant userspace
442 args->operation = RADEON_VA_RESULT_ERROR;
446 if (args->offset < RADEON_VA_RESERVED_SIZE) {
447 dev_err(&dev->pdev->dev,
448 "offset 0x%lX is in reserved area 0x%X\n",
449 (unsigned long)args->offset,
450 RADEON_VA_RESERVED_SIZE);
451 args->operation = RADEON_VA_RESULT_ERROR;
455 /* don't remove, we need to enforce userspace to set the snooped flag
456 * otherwise we will endup with broken userspace and we won't be able
457 * to enable this feature without adding new interface
459 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM;
460 if ((args->flags & invalid_flags)) {
461 dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n",
462 args->flags, invalid_flags);
463 args->operation = RADEON_VA_RESULT_ERROR;
467 switch (args->operation) {
469 case RADEON_VA_UNMAP:
472 dev_err(&dev->pdev->dev, "unsupported operation %d\n",
474 args->operation = RADEON_VA_RESULT_ERROR;
478 gobj = drm_gem_object_lookup(dev, filp, args->handle);
480 args->operation = RADEON_VA_RESULT_ERROR;
483 rbo = gem_to_radeon_bo(gobj);
484 r = radeon_bo_reserve(rbo, false);
486 args->operation = RADEON_VA_RESULT_ERROR;
487 drm_gem_object_unreference_unlocked(gobj);
490 bo_va = radeon_vm_bo_find(&fpriv->vm, rbo);
492 args->operation = RADEON_VA_RESULT_ERROR;
493 drm_gem_object_unreference_unlocked(gobj);
497 switch (args->operation) {
499 if (bo_va->it.start) {
500 args->operation = RADEON_VA_RESULT_VA_EXIST;
501 args->offset = bo_va->it.start * RADEON_GPU_PAGE_SIZE;
504 r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags);
506 case RADEON_VA_UNMAP:
507 r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0);
512 args->operation = RADEON_VA_RESULT_OK;
514 args->operation = RADEON_VA_RESULT_ERROR;
517 radeon_bo_unreserve(rbo);
518 drm_gem_object_unreference_unlocked(gobj);
522 int radeon_gem_op_ioctl(struct drm_device *dev, void *data,
523 struct drm_file *filp)
525 struct drm_radeon_gem_op *args = data;
526 struct drm_gem_object *gobj;
527 struct radeon_bo *robj;
530 gobj = drm_gem_object_lookup(dev, filp, args->handle);
534 robj = gem_to_radeon_bo(gobj);
535 r = radeon_bo_reserve(robj, false);
540 case RADEON_GEM_OP_GET_INITIAL_DOMAIN:
541 args->value = robj->initial_domain;
543 case RADEON_GEM_OP_SET_INITIAL_DOMAIN:
544 robj->initial_domain = args->value & (RADEON_GEM_DOMAIN_VRAM |
545 RADEON_GEM_DOMAIN_GTT |
546 RADEON_GEM_DOMAIN_CPU);
552 radeon_bo_unreserve(robj);
554 drm_gem_object_unreference_unlocked(gobj);
558 int radeon_mode_dumb_create(struct drm_file *file_priv,
559 struct drm_device *dev,
560 struct drm_mode_create_dumb *args)
562 struct radeon_device *rdev = dev->dev_private;
563 struct drm_gem_object *gobj;
567 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8);
568 args->size = args->pitch * args->height;
569 args->size = ALIGN(args->size, PAGE_SIZE);
571 r = radeon_gem_object_create(rdev, args->size, 0,
572 RADEON_GEM_DOMAIN_VRAM, 0,
577 r = drm_gem_handle_create(file_priv, gobj, &handle);
578 /* drop reference from allocate - handle holds it now */
579 drm_gem_object_unreference_unlocked(gobj);
583 args->handle = handle;
587 #if defined(CONFIG_DEBUG_FS)
588 static int radeon_debugfs_gem_info(struct seq_file *m, void *data)
590 struct drm_info_node *node = (struct drm_info_node *)m->private;
591 struct drm_device *dev = node->minor->dev;
592 struct radeon_device *rdev = dev->dev_private;
593 struct radeon_bo *rbo;
596 mutex_lock(&rdev->gem.mutex);
597 list_for_each_entry(rbo, &rdev->gem.objects, list) {
599 const char *placement;
601 domain = radeon_mem_type_to_domain(rbo->tbo.mem.mem_type);
603 case RADEON_GEM_DOMAIN_VRAM:
606 case RADEON_GEM_DOMAIN_GTT:
609 case RADEON_GEM_DOMAIN_CPU:
614 seq_printf(m, "bo[0x%08x] %8ldkB %8ldMB %s pid %8ld\n",
615 i, radeon_bo_size(rbo) >> 10, radeon_bo_size(rbo) >> 20,
616 placement, (unsigned long)rbo->pid);
619 mutex_unlock(&rdev->gem.mutex);
623 static struct drm_info_list radeon_debugfs_gem_list[] = {
624 {"radeon_gem_info", &radeon_debugfs_gem_info, 0, NULL},
628 int radeon_gem_debugfs_init(struct radeon_device *rdev)
630 #if defined(CONFIG_DEBUG_FS)
631 return radeon_debugfs_add_files(rdev, radeon_debugfs_gem_list, 1);