1 // SPDX-License-Identifier: GPL-2.0 OR MIT
2 /* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
3
4 #include <linux/dma-buf.h>
5 #include <drm/drm_prime.h>
6 #include <drm/drm_drv.h>
7 #include <drm/drm_file.h>
8
9 #include "lima_device.h"
10 #include "lima_object.h"
11 #include "lima_gem.h"
12 #include "lima_gem_prime.h"
13
lima_gem_prime_import_sg_table(struct drm_device * dev,struct dma_buf_attachment * attach,struct sg_table * sgt)14 struct drm_gem_object *lima_gem_prime_import_sg_table(
15 struct drm_device *dev, struct dma_buf_attachment *attach,
16 struct sg_table *sgt)
17 {
18 struct lima_device *ldev = to_lima_dev(dev);
19 struct lima_bo *bo;
20
21 bo = lima_bo_create(ldev, attach->dmabuf->size, 0, sgt);
22 if (IS_ERR(bo))
23 return ERR_CAST(bo);
24
25 return &bo->gem;
26 }
27
lima_gem_prime_get_sg_table(struct drm_gem_object * obj)28 struct sg_table *lima_gem_prime_get_sg_table(struct drm_gem_object *obj)
29 {
30 struct lima_bo *bo = to_lima_bo(obj);
31 int npages = obj->size >> PAGE_SHIFT;
32
33 return drm_prime_pages_to_sg(bo->pages, npages);
34 }
35
lima_gem_prime_mmap(struct drm_gem_object * obj,struct vm_area_struct * vma)36 int lima_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
37 {
38 int ret;
39
40 ret = drm_gem_mmap_obj(obj, obj->size, vma);
41 if (ret)
42 return ret;
43
44 lima_set_vma_flags(vma);
45 return 0;
46 }
47
