drm/tegra/gem.c

23 #include "gem.h"
56 	drm_gem_object_put(&obj->gem);
63 	struct drm_gem_object *gem = &obj->gem;
79 	if (gem->import_attach) {
80 		struct dma_buf *buf = gem->import_attach->dmabuf;
97 		map->size = gem->size;
117 		err = sg_alloc_table_from_pages(map->sgt, obj->pages, obj->num_pages, 0, gem->size,
127 		err = dma_get_sgtable(dev, map->sgt, obj->vaddr, obj->iova, gem->size);
149 	map->size = gem->size;
187 	if (obj->gem.import_attach) {
188 		ret = dma_buf_vmap_unlocked(obj->gem.import_attach->dmabuf, &map);
211 	if (obj->gem.import_attach)
212 		return dma_buf_vunmap_unlocked(obj->gem.import_attach->dmabuf, &map);
221 	drm_gem_object_get(&obj->gem);
250 					 bo->mm, bo->gem.size, PAGE_SIZE, 0, 0);
309 	bo->gem.funcs = &tegra_gem_object_funcs;
314 	err = drm_gem_object_init(drm, &bo->gem, size);
318 	err = drm_gem_create_mmap_offset(&bo->gem);
325 	drm_gem_object_release(&bo->gem);
335 		drm_gem_put_pages(&bo->gem, bo->pages, true, true);
339 		dma_free_wc(drm->dev, bo->gem.size, bo->vaddr, bo->iova);
347 	bo->pages = drm_gem_get_pages(&bo->gem);
351 	bo->num_pages = bo->gem.size >> PAGE_SHIFT;
353 	bo->sgt = drm_prime_pages_to_sg(bo->gem.dev, bo->pages, bo->num_pages);
369 	drm_gem_put_pages(&bo->gem, bo->pages, false, false);
389 		size_t size = bo->gem.size;
427 	drm_gem_object_release(&bo->gem);
445 	err = drm_gem_handle_create(file, &bo->gem, handle);
447 		tegra_bo_free_object(&bo->gem);
451 	drm_gem_object_put(&bo->gem);
488 	bo->gem.import_attach = attach;
499 	drm_gem_object_release(&bo->gem);
504 void tegra_bo_free_object(struct drm_gem_object *gem)
506 	struct tegra_drm *tegra = gem->dev->dev_private;
508 	struct tegra_bo *bo = to_tegra_bo(gem);
515 			dev_err(gem->dev->dev, "mapping %p stale for device %s\n", mapping,
522 	if (gem->import_attach) {
523 		dma_buf_unmap_attachment_unlocked(gem->import_attach, bo->sgt,
525 		drm_prime_gem_destroy(gem, NULL);
527 		tegra_bo_free(gem->dev, bo);
530 	drm_gem_object_release(gem);
555 	struct drm_gem_object *gem = vma->vm_private_data;
556 	struct tegra_bo *bo = to_tegra_bo(gem);
575 int __tegra_gem_mmap(struct drm_gem_object *gem, struct vm_area_struct *vma)
577 	struct tegra_bo *bo = to_tegra_bo(gem);
591 		err = dma_mmap_wc(gem->dev->dev, vma, bo->vaddr, bo->iova,
592 				  gem->size);
612 	struct drm_gem_object *gem;
619 	gem = vma->vm_private_data;
621 	return __tegra_gem_mmap(gem, vma);
628 	struct drm_gem_object *gem = attach->dmabuf->priv;
629 	struct tegra_bo *bo = to_tegra_bo(gem);
638 					      0, gem->size, GFP_KERNEL) < 0)
642 				    gem->size) < 0)
661 	struct drm_gem_object *gem = attach->dmabuf->priv;
662 	struct tegra_bo *bo = to_tegra_bo(gem);
679 	struct drm_gem_object *gem = buf->priv;
680 	struct tegra_bo *bo = to_tegra_bo(gem);
681 	struct drm_device *drm = gem->dev;
692 	struct drm_gem_object *gem = buf->priv;
693 	struct tegra_bo *bo = to_tegra_bo(gem);
694 	struct drm_device *drm = gem->dev;
704 	struct drm_gem_object *gem = buf->priv;
707 	err = drm_gem_mmap_obj(gem, gem->size, vma);
711 	return __tegra_gem_mmap(gem, vma);
716 	struct drm_gem_object *gem = buf->priv;
717 	struct tegra_bo *bo = to_tegra_bo(gem);
731 	struct drm_gem_object *gem = buf->priv;
732 	struct tegra_bo *bo = to_tegra_bo(gem);
748 struct dma_buf *tegra_gem_prime_export(struct drm_gem_object *gem,
754 	exp_info.owner = gem->dev->driver->fops->owner;
756 	exp_info.size = gem->size;
758 	exp_info.priv = gem;
760 	return drm_gem_dmabuf_export(gem->dev, &exp_info);
769 		struct drm_gem_object *gem = buf->priv;
771 		if (gem->dev == drm) {
772 			drm_gem_object_get(gem);
773 			return gem;
781 	return &bo->gem;
786 	struct drm_gem_object *gem;
789 	gem = drm_gem_object_lookup(file, handle);
790 	if (!gem)
793 	bo = to_tegra_bo(gem);