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, unsigned long size,
50 int alignment, int initial_domain,
51 u32 flags, 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 /* Maximum bo size is the unpinned gtt size since we use the gtt to
65 * handle vram to system pool migrations.
67 max_size = rdev->mc.gtt_size - rdev->gart_pin_size;
68 if (size > max_size) {
69 DRM_DEBUG("Allocation size %ldMb bigger than %ldMb limit\n",
70 size >> 20, max_size >> 20);
75 r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain,
78 if (r != -ERESTARTSYS) {
79 if (initial_domain == RADEON_GEM_DOMAIN_VRAM) {
80 initial_domain |= RADEON_GEM_DOMAIN_GTT;
83 DRM_ERROR("Failed to allocate GEM object (%ld, %d, %u, %d)\n",
84 size, initial_domain, alignment, r);
88 *obj = &robj->gem_base;
89 robj->pid = curproc ? curproc->p_pid : 0;
91 spin_lock(&rdev->gem.mutex);
92 list_add_tail(&robj->list, &rdev->gem.objects);
93 spin_unlock(&rdev->gem.mutex);
98 static int radeon_gem_set_domain(struct drm_gem_object *gobj,
99 uint32_t rdomain, uint32_t wdomain)
101 struct radeon_bo *robj;
105 /* FIXME: reeimplement */
106 robj = gem_to_radeon_bo(gobj);
107 /* work out where to validate the buffer to */
114 printk(KERN_WARNING "Set domain without domain !\n");
117 if (domain == RADEON_GEM_DOMAIN_CPU) {
118 /* Asking for cpu access wait for object idle */
119 r = radeon_bo_wait(robj, NULL, false);
121 printk(KERN_ERR "Failed to wait for object !\n");
128 int radeon_gem_init(struct radeon_device *rdev)
130 INIT_LIST_HEAD(&rdev->gem.objects);
134 void radeon_gem_fini(struct radeon_device *rdev)
136 radeon_bo_force_delete(rdev);
140 * Call from drm_gem_handle_create which appear in both new and open ioctl
143 int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
145 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
146 struct radeon_device *rdev = rbo->rdev;
147 struct radeon_fpriv *fpriv = file_priv->driver_priv;
148 struct radeon_vm *vm = &fpriv->vm;
149 struct radeon_bo_va *bo_va;
152 if (rdev->family < CHIP_CAYMAN) {
156 r = radeon_bo_reserve(rbo, false);
161 bo_va = radeon_vm_bo_find(vm, rbo);
163 bo_va = radeon_vm_bo_add(rdev, vm, rbo);
167 radeon_bo_unreserve(rbo);
172 void radeon_gem_object_close(struct drm_gem_object *obj,
173 struct drm_file *file_priv)
175 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
176 struct radeon_device *rdev = rbo->rdev;
177 struct radeon_fpriv *fpriv = file_priv->driver_priv;
178 struct radeon_vm *vm = &fpriv->vm;
179 struct radeon_bo_va *bo_va;
182 if (rdev->family < CHIP_CAYMAN) {
186 r = radeon_bo_reserve(rbo, true);
188 dev_err(rdev->dev, "leaking bo va because "
189 "we fail to reserve bo (%d)\n", r);
192 bo_va = radeon_vm_bo_find(vm, rbo);
194 if (--bo_va->ref_count == 0) {
195 radeon_vm_bo_rmv(rdev, bo_va);
198 radeon_bo_unreserve(rbo);
201 static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r)
204 r = radeon_gpu_reset(rdev);
214 int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
215 struct drm_file *filp)
217 struct radeon_device *rdev = dev->dev_private;
218 struct drm_radeon_gem_info *args = data;
219 struct ttm_mem_type_manager *man;
221 man = &rdev->mman.bdev.man[TTM_PL_VRAM];
223 args->vram_size = rdev->mc.real_vram_size;
224 args->vram_visible = (u64)man->size << PAGE_SHIFT;
225 args->vram_visible -= rdev->vram_pin_size;
226 args->gart_size = rdev->mc.gtt_size;
227 args->gart_size -= rdev->gart_pin_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, args->flags,
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 args->domain = radeon_mem_type_to_domain(cur_placement);
357 drm_gem_object_unreference_unlocked(gobj);
358 r = radeon_gem_handle_lockup(rdev, r);
362 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
363 struct drm_file *filp)
365 struct radeon_device *rdev = dev->dev_private;
366 struct drm_radeon_gem_wait_idle *args = data;
367 struct drm_gem_object *gobj;
368 struct radeon_bo *robj;
370 uint32_t cur_placement = 0;
372 gobj = drm_gem_object_lookup(dev, filp, args->handle);
376 robj = gem_to_radeon_bo(gobj);
377 r = radeon_bo_wait(robj, &cur_placement, false);
378 /* Flush HDP cache via MMIO if necessary */
379 if (rdev->asic->mmio_hdp_flush &&
380 radeon_mem_type_to_domain(cur_placement) == RADEON_GEM_DOMAIN_VRAM)
381 robj->rdev->asic->mmio_hdp_flush(rdev);
382 drm_gem_object_unreference_unlocked(gobj);
383 if (r == -ERESTARTSYS)
385 r = radeon_gem_handle_lockup(rdev, r);
389 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
390 struct drm_file *filp)
392 struct drm_radeon_gem_set_tiling *args = data;
393 struct drm_gem_object *gobj;
394 struct radeon_bo *robj;
397 DRM_DEBUG("%d \n", args->handle);
398 gobj = drm_gem_object_lookup(dev, filp, args->handle);
401 robj = gem_to_radeon_bo(gobj);
402 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch);
403 drm_gem_object_unreference_unlocked(gobj);
407 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
408 struct drm_file *filp)
410 struct drm_radeon_gem_get_tiling *args = data;
411 struct drm_gem_object *gobj;
412 struct radeon_bo *rbo;
416 gobj = drm_gem_object_lookup(dev, filp, args->handle);
419 rbo = gem_to_radeon_bo(gobj);
420 r = radeon_bo_reserve(rbo, false);
421 if (unlikely(r != 0))
423 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch);
424 radeon_bo_unreserve(rbo);
426 drm_gem_object_unreference_unlocked(gobj);
430 int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
431 struct drm_file *filp)
433 struct drm_radeon_gem_va *args = data;
434 struct drm_gem_object *gobj;
435 struct radeon_device *rdev = dev->dev_private;
436 struct radeon_fpriv *fpriv = filp->driver_priv;
437 struct radeon_bo *rbo;
438 struct radeon_bo_va *bo_va;
442 if (!rdev->vm_manager.enabled) {
443 args->operation = RADEON_VA_RESULT_ERROR;
448 * We don't support vm_id yet, to be sure we don't have have broken
449 * userspace, reject anyone trying to use non 0 value thus moving
450 * forward we can use those fields without breaking existant userspace
453 args->operation = RADEON_VA_RESULT_ERROR;
457 if (args->offset < RADEON_VA_RESERVED_SIZE) {
458 dev_err(dev->pdev->dev,
459 "offset 0x%lX is in reserved area 0x%X\n",
460 (unsigned long)args->offset,
461 RADEON_VA_RESERVED_SIZE);
462 args->operation = RADEON_VA_RESULT_ERROR;
466 /* don't remove, we need to enforce userspace to set the snooped flag
467 * otherwise we will endup with broken userspace and we won't be able
468 * to enable this feature without adding new interface
470 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM;
471 if ((args->flags & invalid_flags)) {
472 dev_err(dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n",
473 args->flags, invalid_flags);
474 args->operation = RADEON_VA_RESULT_ERROR;
478 switch (args->operation) {
480 case RADEON_VA_UNMAP:
483 dev_err(dev->pdev->dev, "unsupported operation %d\n",
485 args->operation = RADEON_VA_RESULT_ERROR;
489 gobj = drm_gem_object_lookup(dev, filp, args->handle);
491 args->operation = RADEON_VA_RESULT_ERROR;
494 rbo = gem_to_radeon_bo(gobj);
495 r = radeon_bo_reserve(rbo, false);
497 args->operation = RADEON_VA_RESULT_ERROR;
498 drm_gem_object_unreference_unlocked(gobj);
501 bo_va = radeon_vm_bo_find(&fpriv->vm, rbo);
503 args->operation = RADEON_VA_RESULT_ERROR;
504 drm_gem_object_unreference_unlocked(gobj);
508 switch (args->operation) {
510 if (bo_va->soffset) {
511 args->operation = RADEON_VA_RESULT_VA_EXIST;
512 args->offset = bo_va->soffset;
515 r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags);
517 case RADEON_VA_UNMAP:
518 r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0);
523 args->operation = RADEON_VA_RESULT_OK;
525 args->operation = RADEON_VA_RESULT_ERROR;
528 radeon_bo_unreserve(rbo);
529 drm_gem_object_unreference_unlocked(gobj);
533 int radeon_gem_op_ioctl(struct drm_device *dev, void *data,
534 struct drm_file *filp)
536 struct drm_radeon_gem_op *args = data;
537 struct drm_gem_object *gobj;
538 struct radeon_bo *robj;
541 gobj = drm_gem_object_lookup(dev, filp, args->handle);
545 robj = gem_to_radeon_bo(gobj);
546 r = radeon_bo_reserve(robj, false);
551 case RADEON_GEM_OP_GET_INITIAL_DOMAIN:
552 args->value = robj->initial_domain;
554 case RADEON_GEM_OP_SET_INITIAL_DOMAIN:
555 robj->initial_domain = args->value & (RADEON_GEM_DOMAIN_VRAM |
556 RADEON_GEM_DOMAIN_GTT |
557 RADEON_GEM_DOMAIN_CPU);
563 radeon_bo_unreserve(robj);
565 drm_gem_object_unreference_unlocked(gobj);
569 int radeon_mode_dumb_create(struct drm_file *file_priv,
570 struct drm_device *dev,
571 struct drm_mode_create_dumb *args)
573 struct radeon_device *rdev = dev->dev_private;
574 struct drm_gem_object *gobj;
578 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8);
579 args->size = args->pitch * args->height;
580 args->size = ALIGN(args->size, PAGE_SIZE);
582 r = radeon_gem_object_create(rdev, args->size, 0,
583 RADEON_GEM_DOMAIN_VRAM, 0,
588 r = drm_gem_handle_create(file_priv, gobj, &handle);
589 /* drop reference from allocate - handle holds it now */
590 drm_gem_object_unreference_unlocked(gobj);
594 args->handle = handle;
598 #if defined(CONFIG_DEBUG_FS)
599 static int radeon_debugfs_gem_info(struct seq_file *m, void *data)
601 struct drm_info_node *node = (struct drm_info_node *)m->private;
602 struct drm_device *dev = node->minor->dev;
603 struct radeon_device *rdev = dev->dev_private;
604 struct radeon_bo *rbo;
607 mutex_lock(&rdev->gem.mutex);
608 list_for_each_entry(rbo, &rdev->gem.objects, list) {
610 const char *placement;
612 domain = radeon_mem_type_to_domain(rbo->tbo.mem.mem_type);
614 case RADEON_GEM_DOMAIN_VRAM:
617 case RADEON_GEM_DOMAIN_GTT:
620 case RADEON_GEM_DOMAIN_CPU:
625 seq_printf(m, "bo[0x%08x] %8ldkB %8ldMB %s pid %8ld\n",
626 i, radeon_bo_size(rbo) >> 10, radeon_bo_size(rbo) >> 20,
627 placement, (unsigned long)rbo->pid);
630 mutex_unlock(&rdev->gem.mutex);
634 static struct drm_info_list radeon_debugfs_gem_list[] = {
635 {"radeon_gem_info", &radeon_debugfs_gem_info, 0, NULL},
639 int radeon_gem_debugfs_init(struct radeon_device *rdev)
641 #if defined(CONFIG_DEBUG_FS)
642 return radeon_debugfs_add_files(rdev, radeon_debugfs_gem_list, 1);