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;
59 /* At least align on page size */
60 if (alignment < PAGE_SIZE) {
61 alignment = PAGE_SIZE;
63 r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, NULL, &robj);
65 if (r != -ERESTARTSYS)
66 DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n",
67 size, initial_domain, alignment, r);
70 *obj = &robj->gem_base;
72 mutex_lock(&rdev->gem.mutex);
73 list_add_tail(&robj->list, &rdev->gem.objects);
74 mutex_unlock(&rdev->gem.mutex);
79 int radeon_gem_set_domain(struct drm_gem_object *gobj,
80 uint32_t rdomain, uint32_t wdomain)
82 struct radeon_bo *robj;
86 /* FIXME: reeimplement */
87 robj = gem_to_radeon_bo(gobj);
88 /* work out where to validate the buffer to */
95 printk(KERN_WARNING "Set domain without domain !\n");
98 if (domain == RADEON_GEM_DOMAIN_CPU) {
99 /* Asking for cpu access wait for object idle */
100 r = radeon_bo_wait(robj, NULL, false);
102 printk(KERN_ERR "Failed to wait for object !\n");
109 int radeon_gem_init(struct radeon_device *rdev)
111 INIT_LIST_HEAD(&rdev->gem.objects);
115 void radeon_gem_fini(struct radeon_device *rdev)
117 radeon_bo_force_delete(rdev);
121 * Call from drm_gem_handle_create which appear in both new and open ioctl
124 int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
126 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
127 struct radeon_device *rdev = rbo->rdev;
128 struct radeon_fpriv *fpriv = file_priv->driver_priv;
129 struct radeon_vm *vm = &fpriv->vm;
130 struct radeon_bo_va *bo_va;
133 if (rdev->family < CHIP_CAYMAN) {
137 r = radeon_bo_reserve(rbo, false);
142 bo_va = radeon_vm_bo_find(vm, rbo);
144 bo_va = radeon_vm_bo_add(rdev, vm, rbo);
148 radeon_bo_unreserve(rbo);
153 void radeon_gem_object_close(struct drm_gem_object *obj,
154 struct drm_file *file_priv)
156 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
157 struct radeon_device *rdev = rbo->rdev;
158 struct radeon_fpriv *fpriv = file_priv->driver_priv;
159 struct radeon_vm *vm = &fpriv->vm;
160 struct radeon_bo_va *bo_va;
163 if (rdev->family < CHIP_CAYMAN) {
167 r = radeon_bo_reserve(rbo, true);
169 dev_err(rdev->dev, "leaking bo va because "
170 "we fail to reserve bo (%d)\n", r);
173 bo_va = radeon_vm_bo_find(vm, rbo);
175 if (--bo_va->ref_count == 0) {
176 radeon_vm_bo_rmv(rdev, bo_va);
179 radeon_bo_unreserve(rbo);
182 static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r)
185 r = radeon_gpu_reset(rdev);
195 int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
196 struct drm_file *filp)
198 struct radeon_device *rdev = dev->dev_private;
199 struct drm_radeon_gem_info *args = data;
200 struct ttm_mem_type_manager *man;
203 man = &rdev->mman.bdev.man[TTM_PL_VRAM];
205 args->vram_size = rdev->mc.real_vram_size;
206 args->vram_visible = (u64)man->size << PAGE_SHIFT;
207 if (rdev->stollen_vga_memory)
208 args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory);
209 args->vram_visible -= radeon_fbdev_total_size(rdev);
210 args->gart_size = rdev->mc.gtt_size - 4096 - RADEON_IB_POOL_SIZE*64*1024;
211 for(i = 0; i < RADEON_NUM_RINGS; ++i)
212 args->gart_size -= rdev->ring[i].ring_size;
216 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data,
217 struct drm_file *filp)
219 /* TODO: implement */
220 DRM_ERROR("unimplemented %s\n", __func__);
224 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data,
225 struct drm_file *filp)
227 /* TODO: implement */
228 DRM_ERROR("unimplemented %s\n", __func__);
232 int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
233 struct drm_file *filp)
235 struct radeon_device *rdev = dev->dev_private;
236 struct drm_radeon_gem_create *args = data;
237 struct drm_gem_object *gobj;
241 down_read(&rdev->exclusive_lock);
242 /* create a gem object to contain this object in */
243 args->size = roundup(args->size, PAGE_SIZE);
244 r = radeon_gem_object_create(rdev, args->size, args->alignment,
245 args->initial_domain, false,
248 up_read(&rdev->exclusive_lock);
249 r = radeon_gem_handle_lockup(rdev, r);
252 r = drm_gem_handle_create(filp, gobj, &handle);
253 /* drop reference from allocate - handle holds it now */
254 drm_gem_object_unreference_unlocked(gobj);
256 up_read(&rdev->exclusive_lock);
257 r = radeon_gem_handle_lockup(rdev, r);
260 args->handle = handle;
261 up_read(&rdev->exclusive_lock);
265 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
266 struct drm_file *filp)
268 /* transition the BO to a domain -
269 * just validate the BO into a certain domain */
270 struct radeon_device *rdev = dev->dev_private;
271 struct drm_radeon_gem_set_domain *args = data;
272 struct drm_gem_object *gobj;
273 struct radeon_bo *robj;
276 /* for now if someone requests domain CPU -
277 * just make sure the buffer is finished with */
278 down_read(&rdev->exclusive_lock);
280 /* just do a BO wait for now */
281 gobj = drm_gem_object_lookup(dev, filp, args->handle);
283 up_read(&rdev->exclusive_lock);
286 robj = gem_to_radeon_bo(gobj);
288 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain);
290 drm_gem_object_unreference_unlocked(gobj);
291 up_read(&rdev->exclusive_lock);
292 r = radeon_gem_handle_lockup(robj->rdev, r);
296 int radeon_mode_dumb_mmap(struct drm_file *filp,
297 struct drm_device *dev,
298 uint32_t handle, uint64_t *offset_p)
300 struct drm_gem_object *gobj;
301 struct radeon_bo *robj;
303 gobj = drm_gem_object_lookup(dev, filp, handle);
307 robj = gem_to_radeon_bo(gobj);
308 *offset_p = radeon_bo_mmap_offset(robj);
309 drm_gem_object_unreference_unlocked(gobj);
313 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
314 struct drm_file *filp)
316 struct drm_radeon_gem_mmap *args = data;
318 return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr);
321 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
322 struct drm_file *filp)
324 struct radeon_device *rdev = dev->dev_private;
325 struct drm_radeon_gem_busy *args = data;
326 struct drm_gem_object *gobj;
327 struct radeon_bo *robj;
329 uint32_t cur_placement = 0;
331 gobj = drm_gem_object_lookup(dev, filp, args->handle);
335 robj = gem_to_radeon_bo(gobj);
336 r = radeon_bo_wait(robj, &cur_placement, true);
337 switch (cur_placement) {
339 args->domain = RADEON_GEM_DOMAIN_VRAM;
342 args->domain = RADEON_GEM_DOMAIN_GTT;
345 args->domain = RADEON_GEM_DOMAIN_CPU;
349 drm_gem_object_unreference_unlocked(gobj);
350 r = radeon_gem_handle_lockup(rdev, r);
354 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
355 struct drm_file *filp)
357 struct radeon_device *rdev = dev->dev_private;
358 struct drm_radeon_gem_wait_idle *args = data;
359 struct drm_gem_object *gobj;
360 struct radeon_bo *robj;
363 gobj = drm_gem_object_lookup(dev, filp, args->handle);
367 robj = gem_to_radeon_bo(gobj);
368 r = radeon_bo_wait(robj, NULL, false);
369 /* callback hw specific functions if any */
370 if (rdev->asic->ioctl_wait_idle)
371 robj->rdev->asic->ioctl_wait_idle(rdev, robj);
372 drm_gem_object_unreference_unlocked(gobj);
373 r = radeon_gem_handle_lockup(rdev, r);
377 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
378 struct drm_file *filp)
380 struct drm_radeon_gem_set_tiling *args = data;
381 struct drm_gem_object *gobj;
382 struct radeon_bo *robj;
385 DRM_DEBUG("%d \n", args->handle);
386 gobj = drm_gem_object_lookup(dev, filp, args->handle);
389 robj = gem_to_radeon_bo(gobj);
390 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch);
391 drm_gem_object_unreference_unlocked(gobj);
395 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
396 struct drm_file *filp)
398 struct drm_radeon_gem_get_tiling *args = data;
399 struct drm_gem_object *gobj;
400 struct radeon_bo *rbo;
404 gobj = drm_gem_object_lookup(dev, filp, args->handle);
407 rbo = gem_to_radeon_bo(gobj);
408 r = radeon_bo_reserve(rbo, false);
409 if (unlikely(r != 0))
411 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch);
412 radeon_bo_unreserve(rbo);
414 drm_gem_object_unreference_unlocked(gobj);
418 int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
419 struct drm_file *filp)
421 struct drm_radeon_gem_va *args = data;
422 struct drm_gem_object *gobj;
423 struct radeon_device *rdev = dev->dev_private;
424 struct radeon_fpriv *fpriv = filp->driver_priv;
425 struct radeon_bo *rbo;
426 struct radeon_bo_va *bo_va;
430 if (!rdev->vm_manager.enabled) {
431 args->operation = RADEON_VA_RESULT_ERROR;
436 * We don't support vm_id yet, to be sure we don't have have broken
437 * userspace, reject anyone trying to use non 0 value thus moving
438 * forward we can use those fields without breaking existant userspace
441 args->operation = RADEON_VA_RESULT_ERROR;
445 if (args->offset < RADEON_VA_RESERVED_SIZE) {
446 dev_err(&dev->pdev->dev,
447 "offset 0x%lX is in reserved area 0x%X\n",
448 (unsigned long)args->offset,
449 RADEON_VA_RESERVED_SIZE);
450 args->operation = RADEON_VA_RESULT_ERROR;
454 /* don't remove, we need to enforce userspace to set the snooped flag
455 * otherwise we will endup with broken userspace and we won't be able
456 * to enable this feature without adding new interface
458 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM;
459 if ((args->flags & invalid_flags)) {
460 dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n",
461 args->flags, invalid_flags);
462 args->operation = RADEON_VA_RESULT_ERROR;
465 if (!(args->flags & RADEON_VM_PAGE_SNOOPED)) {
466 dev_err(&dev->pdev->dev, "only supported snooped mapping for now\n");
467 args->operation = RADEON_VA_RESULT_ERROR;
471 switch (args->operation) {
473 case RADEON_VA_UNMAP:
476 dev_err(&dev->pdev->dev, "unsupported operation %d\n",
478 args->operation = RADEON_VA_RESULT_ERROR;
482 gobj = drm_gem_object_lookup(dev, filp, args->handle);
484 args->operation = RADEON_VA_RESULT_ERROR;
487 rbo = gem_to_radeon_bo(gobj);
488 r = radeon_bo_reserve(rbo, false);
490 args->operation = RADEON_VA_RESULT_ERROR;
491 drm_gem_object_unreference_unlocked(gobj);
494 bo_va = radeon_vm_bo_find(&fpriv->vm, rbo);
496 args->operation = RADEON_VA_RESULT_ERROR;
497 drm_gem_object_unreference_unlocked(gobj);
501 switch (args->operation) {
503 if (bo_va->soffset) {
504 args->operation = RADEON_VA_RESULT_VA_EXIST;
505 args->offset = bo_va->soffset;
508 r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags);
510 case RADEON_VA_UNMAP:
511 r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0);
516 args->operation = RADEON_VA_RESULT_OK;
518 args->operation = RADEON_VA_RESULT_ERROR;
521 radeon_bo_unreserve(rbo);
522 drm_gem_object_unreference_unlocked(gobj);
526 int radeon_mode_dumb_create(struct drm_file *file_priv,
527 struct drm_device *dev,
528 struct drm_mode_create_dumb *args)
530 struct radeon_device *rdev = dev->dev_private;
531 struct drm_gem_object *gobj;
535 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8);
536 args->size = args->pitch * args->height;
537 args->size = ALIGN(args->size, PAGE_SIZE);
539 r = radeon_gem_object_create(rdev, args->size, 0,
540 RADEON_GEM_DOMAIN_VRAM,
541 false, ttm_bo_type_device,
546 r = drm_gem_handle_create(file_priv, gobj, &handle);
547 /* drop reference from allocate - handle holds it now */
548 drm_gem_object_unreference_unlocked(gobj);
552 args->handle = handle;
556 int radeon_mode_dumb_destroy(struct drm_file *file_priv,
557 struct drm_device *dev,
560 return drm_gem_handle_delete(file_priv, handle);