| // SPDX-License-Identifier: GPL-2.0 OR MIT |
| /* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */ |
| |
| #include <linux/dma-buf.h> |
| #include <drm/drm_prime.h> |
| #include <drm/drm_drv.h> |
| #include <drm/drm_file.h> |
| |
| #include "lima_device.h" |
| #include "lima_object.h" |
| #include "lima_gem.h" |
| #include "lima_gem_prime.h" |
| |
| struct drm_gem_object *lima_gem_prime_import_sg_table( |
| struct drm_device *dev, struct dma_buf_attachment *attach, |
| struct sg_table *sgt) |
| { |
| struct lima_device *ldev = to_lima_dev(dev); |
| struct lima_bo *bo; |
| |
| bo = lima_bo_create(ldev, attach->dmabuf->size, 0, sgt); |
| if (IS_ERR(bo)) |
| return ERR_CAST(bo); |
| |
| return &bo->gem; |
| } |
| |
| struct sg_table *lima_gem_prime_get_sg_table(struct drm_gem_object *obj) |
| { |
| struct lima_bo *bo = to_lima_bo(obj); |
| int npages = obj->size >> PAGE_SHIFT; |
| |
| return drm_prime_pages_to_sg(bo->pages, npages); |
| } |
| |
| int lima_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma) |
| { |
| int ret; |
| |
| ret = drm_gem_mmap_obj(obj, obj->size, vma); |
| if (ret) |
| return ret; |
| |
| lima_set_vma_flags(vma); |
| return 0; |
| } |