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
30 #include "radeon_drm.h"
33 int radeon_gem_object_init(struct drm_gem_object *obj)
40 void radeon_gem_object_free(struct drm_gem_object *gobj)
42 struct radeon_bo *robj = gem_to_radeon_bo(gobj);
45 if (robj->gem_base.import_attach)
46 drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg);
47 radeon_bo_unref(&robj);
51 int radeon_gem_object_create(struct radeon_device *rdev, int size,
52 int alignment, int initial_domain,
53 bool discardable, bool kernel,
54 struct drm_gem_object **obj)
56 struct radeon_bo *robj;
60 /* At least align on page size */
61 if (alignment < PAGE_SIZE) {
62 alignment = PAGE_SIZE;
64 r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, NULL, &robj);
66 if (r != -ERESTARTSYS)
67 DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n",
68 size, initial_domain, alignment, r);
71 *obj = &robj->gem_base;
73 mutex_lock(&rdev->gem.mutex);
74 list_add_tail(&robj->list, &rdev->gem.objects);
75 mutex_unlock(&rdev->gem.mutex);
80 int radeon_gem_set_domain(struct drm_gem_object *gobj,
81 uint32_t rdomain, uint32_t wdomain)
83 struct radeon_bo *robj;
87 /* FIXME: reeimplement */
88 robj = gem_to_radeon_bo(gobj);
89 /* work out where to validate the buffer to */
96 printk(KERN_WARNING "Set domain without domain !\n");
99 if (domain == RADEON_GEM_DOMAIN_CPU) {
100 /* Asking for cpu access wait for object idle */
101 r = radeon_bo_wait(robj, NULL, false);
103 printk(KERN_ERR "Failed to wait for object !\n");
110 int radeon_gem_init(struct radeon_device *rdev)
112 INIT_LIST_HEAD(&rdev->gem.objects);
116 void radeon_gem_fini(struct radeon_device *rdev)
118 radeon_bo_force_delete(rdev);
122 * Call from drm_gem_handle_create which appear in both new and open ioctl
125 int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
130 void radeon_gem_object_close(struct drm_gem_object *obj,
131 struct drm_file *file_priv)
133 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
134 struct radeon_device *rdev = rbo->rdev;
135 struct radeon_fpriv *fpriv = file_priv->driver_priv;
136 struct radeon_vm *vm = &fpriv->vm;
138 if (rdev->family < CHIP_CAYMAN) {
142 if (radeon_bo_reserve(rbo, false)) {
143 dev_err(rdev->dev, "leaking bo va because we fail to reserve bo\n");
146 radeon_vm_bo_rmv(rdev, vm, rbo);
147 radeon_bo_unreserve(rbo);
150 static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r)
153 r = radeon_gpu_reset(rdev);
163 int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
164 struct drm_file *filp)
166 struct radeon_device *rdev = dev->dev_private;
167 struct drm_radeon_gem_info *args = data;
168 struct ttm_mem_type_manager *man;
171 man = &rdev->mman.bdev.man[TTM_PL_VRAM];
173 args->vram_size = rdev->mc.real_vram_size;
174 args->vram_visible = (u64)man->size << PAGE_SHIFT;
175 if (rdev->stollen_vga_memory)
176 args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory);
177 args->vram_visible -= radeon_fbdev_total_size(rdev);
178 args->gart_size = rdev->mc.gtt_size - 4096 - RADEON_IB_POOL_SIZE*64*1024;
179 for(i = 0; i < RADEON_NUM_RINGS; ++i)
180 args->gart_size -= rdev->ring[i].ring_size;
184 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data,
185 struct drm_file *filp)
187 /* TODO: implement */
188 DRM_ERROR("unimplemented %s\n", __func__);
192 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data,
193 struct drm_file *filp)
195 /* TODO: implement */
196 DRM_ERROR("unimplemented %s\n", __func__);
200 int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
201 struct drm_file *filp)
203 struct radeon_device *rdev = dev->dev_private;
204 struct drm_radeon_gem_create *args = data;
205 struct drm_gem_object *gobj;
209 down_read(&rdev->exclusive_lock);
210 /* create a gem object to contain this object in */
211 args->size = roundup(args->size, PAGE_SIZE);
212 r = radeon_gem_object_create(rdev, args->size, args->alignment,
213 args->initial_domain, false,
216 up_read(&rdev->exclusive_lock);
217 r = radeon_gem_handle_lockup(rdev, r);
220 r = drm_gem_handle_create(filp, gobj, &handle);
221 /* drop reference from allocate - handle holds it now */
222 drm_gem_object_unreference_unlocked(gobj);
224 up_read(&rdev->exclusive_lock);
225 r = radeon_gem_handle_lockup(rdev, r);
228 args->handle = handle;
229 up_read(&rdev->exclusive_lock);
233 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
234 struct drm_file *filp)
236 /* transition the BO to a domain -
237 * just validate the BO into a certain domain */
238 struct radeon_device *rdev = dev->dev_private;
239 struct drm_radeon_gem_set_domain *args = data;
240 struct drm_gem_object *gobj;
241 struct radeon_bo *robj;
244 /* for now if someone requests domain CPU -
245 * just make sure the buffer is finished with */
246 down_read(&rdev->exclusive_lock);
248 /* just do a BO wait for now */
249 gobj = drm_gem_object_lookup(dev, filp, args->handle);
251 up_read(&rdev->exclusive_lock);
254 robj = gem_to_radeon_bo(gobj);
256 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain);
258 drm_gem_object_unreference_unlocked(gobj);
259 up_read(&rdev->exclusive_lock);
260 r = radeon_gem_handle_lockup(robj->rdev, r);
264 int radeon_mode_dumb_mmap(struct drm_file *filp,
265 struct drm_device *dev,
266 uint32_t handle, uint64_t *offset_p)
268 struct drm_gem_object *gobj;
269 struct radeon_bo *robj;
271 gobj = drm_gem_object_lookup(dev, filp, handle);
275 robj = gem_to_radeon_bo(gobj);
276 *offset_p = radeon_bo_mmap_offset(robj);
277 drm_gem_object_unreference_unlocked(gobj);
281 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
282 struct drm_file *filp)
284 struct drm_radeon_gem_mmap *args = data;
286 return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr);
289 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
290 struct drm_file *filp)
292 struct radeon_device *rdev = dev->dev_private;
293 struct drm_radeon_gem_busy *args = data;
294 struct drm_gem_object *gobj;
295 struct radeon_bo *robj;
297 uint32_t cur_placement = 0;
299 gobj = drm_gem_object_lookup(dev, filp, args->handle);
303 robj = gem_to_radeon_bo(gobj);
304 r = radeon_bo_wait(robj, &cur_placement, true);
305 switch (cur_placement) {
307 args->domain = RADEON_GEM_DOMAIN_VRAM;
310 args->domain = RADEON_GEM_DOMAIN_GTT;
313 args->domain = RADEON_GEM_DOMAIN_CPU;
317 drm_gem_object_unreference_unlocked(gobj);
318 r = radeon_gem_handle_lockup(rdev, r);
322 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
323 struct drm_file *filp)
325 struct radeon_device *rdev = dev->dev_private;
326 struct drm_radeon_gem_wait_idle *args = data;
327 struct drm_gem_object *gobj;
328 struct radeon_bo *robj;
331 gobj = drm_gem_object_lookup(dev, filp, args->handle);
335 robj = gem_to_radeon_bo(gobj);
336 r = radeon_bo_wait(robj, NULL, false);
337 /* callback hw specific functions if any */
338 if (rdev->asic->ioctl_wait_idle)
339 robj->rdev->asic->ioctl_wait_idle(rdev, robj);
340 drm_gem_object_unreference_unlocked(gobj);
341 r = radeon_gem_handle_lockup(rdev, r);
345 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
346 struct drm_file *filp)
348 struct drm_radeon_gem_set_tiling *args = data;
349 struct drm_gem_object *gobj;
350 struct radeon_bo *robj;
353 DRM_DEBUG("%d \n", args->handle);
354 gobj = drm_gem_object_lookup(dev, filp, args->handle);
357 robj = gem_to_radeon_bo(gobj);
358 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch);
359 drm_gem_object_unreference_unlocked(gobj);
363 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
364 struct drm_file *filp)
366 struct drm_radeon_gem_get_tiling *args = data;
367 struct drm_gem_object *gobj;
368 struct radeon_bo *rbo;
372 gobj = drm_gem_object_lookup(dev, filp, args->handle);
375 rbo = gem_to_radeon_bo(gobj);
376 r = radeon_bo_reserve(rbo, false);
377 if (unlikely(r != 0))
379 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch);
380 radeon_bo_unreserve(rbo);
382 drm_gem_object_unreference_unlocked(gobj);
386 int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
387 struct drm_file *filp)
389 struct drm_radeon_gem_va *args = data;
390 struct drm_gem_object *gobj;
391 struct radeon_device *rdev = dev->dev_private;
392 struct radeon_fpriv *fpriv = filp->driver_priv;
393 struct radeon_bo *rbo;
394 struct radeon_bo_va *bo_va;
398 if (!rdev->vm_manager.enabled) {
399 args->operation = RADEON_VA_RESULT_ERROR;
404 * We don't support vm_id yet, to be sure we don't have have broken
405 * userspace, reject anyone trying to use non 0 value thus moving
406 * forward we can use those fields without breaking existant userspace
409 args->operation = RADEON_VA_RESULT_ERROR;
413 if (args->offset < RADEON_VA_RESERVED_SIZE) {
414 dev_err(&dev->pdev->dev,
415 "offset 0x%lX is in reserved area 0x%X\n",
416 (unsigned long)args->offset,
417 RADEON_VA_RESERVED_SIZE);
418 args->operation = RADEON_VA_RESULT_ERROR;
422 /* don't remove, we need to enforce userspace to set the snooped flag
423 * otherwise we will endup with broken userspace and we won't be able
424 * to enable this feature without adding new interface
426 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM;
427 if ((args->flags & invalid_flags)) {
428 dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n",
429 args->flags, invalid_flags);
430 args->operation = RADEON_VA_RESULT_ERROR;
433 if (!(args->flags & RADEON_VM_PAGE_SNOOPED)) {
434 dev_err(&dev->pdev->dev, "only supported snooped mapping for now\n");
435 args->operation = RADEON_VA_RESULT_ERROR;
439 switch (args->operation) {
441 case RADEON_VA_UNMAP:
444 dev_err(&dev->pdev->dev, "unsupported operation %d\n",
446 args->operation = RADEON_VA_RESULT_ERROR;
450 gobj = drm_gem_object_lookup(dev, filp, args->handle);
452 args->operation = RADEON_VA_RESULT_ERROR;
455 rbo = gem_to_radeon_bo(gobj);
456 r = radeon_bo_reserve(rbo, false);
458 args->operation = RADEON_VA_RESULT_ERROR;
459 drm_gem_object_unreference_unlocked(gobj);
462 switch (args->operation) {
464 bo_va = radeon_bo_va(rbo, &fpriv->vm);
466 args->operation = RADEON_VA_RESULT_VA_EXIST;
467 args->offset = bo_va->soffset;
470 r = radeon_vm_bo_add(rdev, &fpriv->vm, rbo,
471 args->offset, args->flags);
473 case RADEON_VA_UNMAP:
474 r = radeon_vm_bo_rmv(rdev, &fpriv->vm, rbo);
479 args->operation = RADEON_VA_RESULT_OK;
481 args->operation = RADEON_VA_RESULT_ERROR;
484 radeon_bo_unreserve(rbo);
485 drm_gem_object_unreference_unlocked(gobj);
489 int radeon_mode_dumb_create(struct drm_file *file_priv,
490 struct drm_device *dev,
491 struct drm_mode_create_dumb *args)
493 struct radeon_device *rdev = dev->dev_private;
494 struct drm_gem_object *gobj;
498 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8);
499 args->size = args->pitch * args->height;
500 args->size = ALIGN(args->size, PAGE_SIZE);
502 r = radeon_gem_object_create(rdev, args->size, 0,
503 RADEON_GEM_DOMAIN_VRAM,
504 false, ttm_bo_type_device,
509 r = drm_gem_handle_create(file_priv, gobj, &handle);
510 /* drop reference from allocate - handle holds it now */
511 drm_gem_object_unreference_unlocked(gobj);
515 args->handle = handle;
519 int radeon_mode_dumb_destroy(struct drm_file *file_priv,
520 struct drm_device *dev,
523 return drm_gem_handle_delete(file_priv, handle);