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
14struct 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
28struct 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
36int 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}