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 int radeon_gem_object_init(struct drm_gem_object *obj)
39 void radeon_gem_object_free(struct drm_gem_object *gobj)
41 struct radeon_bo *robj = gem_to_radeon_bo(gobj);
44 if (robj->gem_base.import_attach)
45 drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg);
46 radeon_bo_unref(&robj);
50 int radeon_gem_object_create(struct radeon_device *rdev, int size,
51 int alignment, int initial_domain,
52 bool discardable, bool kernel,
53 struct drm_gem_object **obj)
55 struct radeon_bo *robj;
56 unsigned long max_size;
60 /* At least align on page size */
61 if (alignment < PAGE_SIZE) {
62 alignment = PAGE_SIZE;
65 /* maximun bo size is the minimun btw visible vram and gtt size */
66 max_size = min(rdev->mc.visible_vram_size, rdev->mc.gtt_size);
67 if (size > max_size) {
68 printk(KERN_WARNING "%s:%d alloc size %dMb bigger than %ldMb limit\n",
69 __func__, __LINE__, size >> 20, max_size >> 20);
74 r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, 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 (%d, %d, %u, %d)\n",
82 size, initial_domain, alignment, r);
86 *obj = &robj->gem_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 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 printk(KERN_WARNING "Set domain without domain !\n");
115 if (domain == RADEON_GEM_DOMAIN_CPU) {
116 /* Asking for cpu access wait for object idle */
117 r = radeon_bo_wait(robj, NULL, false);
119 printk(KERN_ERR "Failed to wait for object !\n");
126 int radeon_gem_init(struct radeon_device *rdev)
128 INIT_LIST_HEAD(&rdev->gem.objects);
132 void radeon_gem_fini(struct radeon_device *rdev)
134 radeon_bo_force_delete(rdev);
138 * Call from drm_gem_handle_create which appear in both new and open ioctl
141 int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
143 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
144 struct radeon_device *rdev = rbo->rdev;
145 struct radeon_fpriv *fpriv = file_priv->driver_priv;
146 struct radeon_vm *vm = &fpriv->vm;
147 struct radeon_bo_va *bo_va;
150 if (rdev->family < CHIP_CAYMAN) {
154 r = radeon_bo_reserve(rbo, false);
159 bo_va = radeon_vm_bo_find(vm, rbo);
161 bo_va = radeon_vm_bo_add(rdev, vm, rbo);
165 radeon_bo_unreserve(rbo);
170 void radeon_gem_object_close(struct drm_gem_object *obj,
171 struct drm_file *file_priv)
173 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
174 struct radeon_device *rdev = rbo->rdev;
175 struct radeon_fpriv *fpriv = file_priv->driver_priv;
176 struct radeon_vm *vm = &fpriv->vm;
177 struct radeon_bo_va *bo_va;
180 if (rdev->family < CHIP_CAYMAN) {
184 r = radeon_bo_reserve(rbo, true);
186 dev_err(rdev->dev, "leaking bo va because "
187 "we fail to reserve bo (%d)\n", r);
190 bo_va = radeon_vm_bo_find(vm, rbo);
192 if (--bo_va->ref_count == 0) {
193 radeon_vm_bo_rmv(rdev, bo_va);
196 radeon_bo_unreserve(rbo);
199 static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r)
202 r = radeon_gpu_reset(rdev);
212 int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
213 struct drm_file *filp)
215 struct radeon_device *rdev = dev->dev_private;
216 struct drm_radeon_gem_info *args = data;
217 struct ttm_mem_type_manager *man;
220 man = &rdev->mman.bdev.man[TTM_PL_VRAM];
222 args->vram_size = rdev->mc.real_vram_size;
223 args->vram_visible = (u64)man->size << PAGE_SHIFT;
224 if (rdev->stollen_vga_memory)
225 args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory);
226 args->vram_visible -= radeon_fbdev_total_size(rdev);
227 args->gart_size = rdev->mc.gtt_size - 4096 - RADEON_IB_POOL_SIZE*64*1024;
228 for(i = 0; i < RADEON_NUM_RINGS; ++i)
229 args->gart_size -= rdev->ring[i].ring_size;
233 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data,
234 struct drm_file *filp)
236 /* TODO: implement */
237 DRM_ERROR("unimplemented %s\n", __func__);
241 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data,
242 struct drm_file *filp)
244 /* TODO: implement */
245 DRM_ERROR("unimplemented %s\n", __func__);
249 int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
250 struct drm_file *filp)
252 struct radeon_device *rdev = dev->dev_private;
253 struct drm_radeon_gem_create *args = data;
254 struct drm_gem_object *gobj;
258 down_read(&rdev->exclusive_lock);
259 /* create a gem object to contain this object in */
260 args->size = roundup(args->size, PAGE_SIZE);
261 r = radeon_gem_object_create(rdev, args->size, args->alignment,
262 args->initial_domain, false,
265 up_read(&rdev->exclusive_lock);
266 r = radeon_gem_handle_lockup(rdev, r);
269 r = drm_gem_handle_create(filp, gobj, &handle);
270 /* drop reference from allocate - handle holds it now */
271 drm_gem_object_unreference_unlocked(gobj);
273 up_read(&rdev->exclusive_lock);
274 r = radeon_gem_handle_lockup(rdev, r);
277 args->handle = handle;
278 up_read(&rdev->exclusive_lock);
282 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
283 struct drm_file *filp)
285 /* transition the BO to a domain -
286 * just validate the BO into a certain domain */
287 struct radeon_device *rdev = dev->dev_private;
288 struct drm_radeon_gem_set_domain *args = data;
289 struct drm_gem_object *gobj;
290 struct radeon_bo *robj;
293 /* for now if someone requests domain CPU -
294 * just make sure the buffer is finished with */
295 down_read(&rdev->exclusive_lock);
297 /* just do a BO wait for now */
298 gobj = drm_gem_object_lookup(dev, filp, args->handle);
300 up_read(&rdev->exclusive_lock);
303 robj = gem_to_radeon_bo(gobj);
305 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain);
307 drm_gem_object_unreference_unlocked(gobj);
308 up_read(&rdev->exclusive_lock);
309 r = radeon_gem_handle_lockup(robj->rdev, r);
313 int radeon_mode_dumb_mmap(struct drm_file *filp,
314 struct drm_device *dev,
315 uint32_t handle, uint64_t *offset_p)
317 struct drm_gem_object *gobj;
318 struct radeon_bo *robj;
320 gobj = drm_gem_object_lookup(dev, filp, handle);
324 robj = gem_to_radeon_bo(gobj);
325 *offset_p = radeon_bo_mmap_offset(robj);
326 drm_gem_object_unreference_unlocked(gobj);
330 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
331 struct drm_file *filp)
333 struct drm_radeon_gem_mmap *args = data;
335 return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr);
338 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
339 struct drm_file *filp)
341 struct radeon_device *rdev = dev->dev_private;
342 struct drm_radeon_gem_busy *args = data;
343 struct drm_gem_object *gobj;
344 struct radeon_bo *robj;
346 uint32_t cur_placement = 0;
348 gobj = drm_gem_object_lookup(dev, filp, args->handle);
352 robj = gem_to_radeon_bo(gobj);
353 r = radeon_bo_wait(robj, &cur_placement, true);
354 switch (cur_placement) {
356 args->domain = RADEON_GEM_DOMAIN_VRAM;
359 args->domain = RADEON_GEM_DOMAIN_GTT;
362 args->domain = RADEON_GEM_DOMAIN_CPU;
366 drm_gem_object_unreference_unlocked(gobj);
367 r = radeon_gem_handle_lockup(rdev, r);
371 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
372 struct drm_file *filp)
374 struct radeon_device *rdev = dev->dev_private;
375 struct drm_radeon_gem_wait_idle *args = data;
376 struct drm_gem_object *gobj;
377 struct radeon_bo *robj;
380 gobj = drm_gem_object_lookup(dev, filp, args->handle);
384 robj = gem_to_radeon_bo(gobj);
385 r = radeon_bo_wait(robj, NULL, false);
386 /* callback hw specific functions if any */
387 if (rdev->asic->ioctl_wait_idle)
388 robj->rdev->asic->ioctl_wait_idle(rdev, robj);
389 drm_gem_object_unreference_unlocked(gobj);
390 r = radeon_gem_handle_lockup(rdev, r);
394 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
395 struct drm_file *filp)
397 struct drm_radeon_gem_set_tiling *args = data;
398 struct drm_gem_object *gobj;
399 struct radeon_bo *robj;
402 DRM_DEBUG("%d \n", args->handle);
403 gobj = drm_gem_object_lookup(dev, filp, args->handle);
406 robj = gem_to_radeon_bo(gobj);
407 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch);
408 drm_gem_object_unreference_unlocked(gobj);
412 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
413 struct drm_file *filp)
415 struct drm_radeon_gem_get_tiling *args = data;
416 struct drm_gem_object *gobj;
417 struct radeon_bo *rbo;
421 gobj = drm_gem_object_lookup(dev, filp, args->handle);
424 rbo = gem_to_radeon_bo(gobj);
425 r = radeon_bo_reserve(rbo, false);
426 if (unlikely(r != 0))
428 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch);
429 radeon_bo_unreserve(rbo);
431 drm_gem_object_unreference_unlocked(gobj);
435 int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
436 struct drm_file *filp)
438 struct drm_radeon_gem_va *args = data;
439 struct drm_gem_object *gobj;
440 struct radeon_device *rdev = dev->dev_private;
441 struct radeon_fpriv *fpriv = filp->driver_priv;
442 struct radeon_bo *rbo;
443 struct radeon_bo_va *bo_va;
447 if (!rdev->vm_manager.enabled) {
448 args->operation = RADEON_VA_RESULT_ERROR;
453 * We don't support vm_id yet, to be sure we don't have have broken
454 * userspace, reject anyone trying to use non 0 value thus moving
455 * forward we can use those fields without breaking existant userspace
458 args->operation = RADEON_VA_RESULT_ERROR;
462 if (args->offset < RADEON_VA_RESERVED_SIZE) {
463 dev_err(&dev->pdev->dev,
464 "offset 0x%lX is in reserved area 0x%X\n",
465 (unsigned long)args->offset,
466 RADEON_VA_RESERVED_SIZE);
467 args->operation = RADEON_VA_RESULT_ERROR;
471 /* don't remove, we need to enforce userspace to set the snooped flag
472 * otherwise we will endup with broken userspace and we won't be able
473 * to enable this feature without adding new interface
475 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM;
476 if ((args->flags & invalid_flags)) {
477 dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n",
478 args->flags, invalid_flags);
479 args->operation = RADEON_VA_RESULT_ERROR;
482 if (!(args->flags & RADEON_VM_PAGE_SNOOPED)) {
483 dev_err(&dev->pdev->dev, "only supported snooped mapping for now\n");
484 args->operation = RADEON_VA_RESULT_ERROR;
488 switch (args->operation) {
490 case RADEON_VA_UNMAP:
493 dev_err(&dev->pdev->dev, "unsupported operation %d\n",
495 args->operation = RADEON_VA_RESULT_ERROR;
499 gobj = drm_gem_object_lookup(dev, filp, args->handle);
501 args->operation = RADEON_VA_RESULT_ERROR;
504 rbo = gem_to_radeon_bo(gobj);
505 r = radeon_bo_reserve(rbo, false);
507 args->operation = RADEON_VA_RESULT_ERROR;
508 drm_gem_object_unreference_unlocked(gobj);
511 bo_va = radeon_vm_bo_find(&fpriv->vm, rbo);
513 args->operation = RADEON_VA_RESULT_ERROR;
514 drm_gem_object_unreference_unlocked(gobj);
518 switch (args->operation) {
520 if (bo_va->soffset) {
521 args->operation = RADEON_VA_RESULT_VA_EXIST;
522 args->offset = bo_va->soffset;
525 r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags);
527 case RADEON_VA_UNMAP:
528 r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0);
533 args->operation = RADEON_VA_RESULT_OK;
535 args->operation = RADEON_VA_RESULT_ERROR;
538 radeon_bo_unreserve(rbo);
539 drm_gem_object_unreference_unlocked(gobj);
543 int radeon_mode_dumb_create(struct drm_file *file_priv,
544 struct drm_device *dev,
545 struct drm_mode_create_dumb *args)
547 struct radeon_device *rdev = dev->dev_private;
548 struct drm_gem_object *gobj;
552 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8);
553 args->size = args->pitch * args->height;
554 args->size = ALIGN(args->size, PAGE_SIZE);
556 r = radeon_gem_object_create(rdev, args->size, 0,
557 RADEON_GEM_DOMAIN_VRAM,
558 false, ttm_bo_type_device,
563 r = drm_gem_handle_create(file_priv, gobj, &handle);
564 /* drop reference from allocate - handle holds it now */
565 drm_gem_object_unreference_unlocked(gobj);
569 args->handle = handle;
573 int radeon_mode_dumb_destroy(struct drm_file *file_priv,
574 struct drm_device *dev,
577 return drm_gem_handle_delete(file_priv, handle);
580 #if defined(CONFIG_DEBUG_FS)
581 static int radeon_debugfs_gem_info(struct seq_file *m, void *data)
583 struct drm_info_node *node = (struct drm_info_node *)m->private;
584 struct drm_device *dev = node->minor->dev;
585 struct radeon_device *rdev = dev->dev_private;
586 struct radeon_bo *rbo;
589 mutex_lock(&rdev->gem.mutex);
590 list_for_each_entry(rbo, &rdev->gem.objects, list) {
592 const char *placement;
594 domain = radeon_mem_type_to_domain(rbo->tbo.mem.mem_type);
596 case RADEON_GEM_DOMAIN_VRAM:
599 case RADEON_GEM_DOMAIN_GTT:
602 case RADEON_GEM_DOMAIN_CPU:
607 seq_printf(m, "bo[0x%08x] %8ldkB %8ldMB %s pid %8ld\n",
608 i, radeon_bo_size(rbo) >> 10, radeon_bo_size(rbo) >> 20,
609 placement, (unsigned long)rbo->pid);
612 mutex_unlock(&rdev->gem.mutex);
616 static struct drm_info_list radeon_debugfs_gem_list[] = {
617 {"radeon_gem_info", &radeon_debugfs_gem_info, 0, NULL},
621 int radeon_gem_debugfs_init(struct radeon_device *rdev)
623 #if defined(CONFIG_DEBUG_FS)
624 return radeon_debugfs_add_files(rdev, radeon_debugfs_gem_list, 1);