1 /* SPDX-License-Identifier: GPL-2.0 OR MIT */
2 
3 /*
4  *  Xen para-virtual DRM device
5  *
6  * Copyright (C) 2016-2018 EPAM Systems Inc.
7  *
8  * Author: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
9  */
10 
11 #ifndef __XEN_DRM_FRONT_GEM_H
12 #define __XEN_DRM_FRONT_GEM_H
13 
14 struct dma_buf_attachment;
15 struct dma_buf_map;
16 struct drm_device;
17 struct drm_gem_object;
18 struct file;
19 struct sg_table;
20 struct vm_area_struct;
21 
22 struct drm_gem_object *xen_drm_front_gem_create(struct drm_device *dev,
23 						size_t size);
24 
25 struct drm_gem_object *
26 xen_drm_front_gem_import_sg_table(struct drm_device *dev,
27 				  struct dma_buf_attachment *attach,
28 				  struct sg_table *sgt);
29 
30 struct sg_table *xen_drm_front_gem_get_sg_table(struct drm_gem_object *gem_obj);
31 
32 struct page **xen_drm_front_gem_get_pages(struct drm_gem_object *obj);
33 
34 void xen_drm_front_gem_free_object_unlocked(struct drm_gem_object *gem_obj);
35 
36 int xen_drm_front_gem_mmap(struct file *filp, struct vm_area_struct *vma);
37 
38 int xen_drm_front_gem_prime_vmap(struct drm_gem_object *gem_obj,
39 				 struct dma_buf_map *map);
40 
41 void xen_drm_front_gem_prime_vunmap(struct drm_gem_object *gem_obj,
42 				    struct dma_buf_map *map);
43 
44 int xen_drm_front_gem_prime_mmap(struct drm_gem_object *gem_obj,
45 				 struct vm_area_struct *vma);
46 
47 #endif /* __XEN_DRM_FRONT_GEM_H */
48