1/*
 2 * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
 3 * Author:Mark Yao <mark.yao@rock-chips.com>
 4 *
 5 * This software is licensed under the terms of the GNU General Public
 6 * License version 2, as published by the Free Software Foundation, and
 7 * may be copied, distributed, and modified under those terms.
 8 *
 9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 * GNU General Public License for more details.
13 */
14
15#ifndef _ROCKCHIP_DRM_GEM_H
16#define _ROCKCHIP_DRM_GEM_H
17
18#define to_rockchip_obj(x) container_of(x, struct rockchip_gem_object, base)
19
20struct rockchip_gem_object {
21	struct drm_gem_object base;
22	unsigned int flags;
23
24	void *kvaddr;
25	dma_addr_t dma_addr;
26	/* Used when IOMMU is disabled */
27	unsigned long dma_attrs;
28
29	/* Used when IOMMU is enabled */
30	struct drm_mm_node mm;
31	unsigned long num_pages;
32	struct page **pages;
33	struct sg_table *sgt;
34	size_t size;
35};
36
37struct sg_table *rockchip_gem_prime_get_sg_table(struct drm_gem_object *obj);
38struct drm_gem_object *
39rockchip_gem_prime_import_sg_table(struct drm_device *dev,
40				   struct dma_buf_attachment *attach,
41				   struct sg_table *sg);
42void *rockchip_gem_prime_vmap(struct drm_gem_object *obj);
43void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
44
45/* drm driver mmap file operations */
46int rockchip_gem_mmap(struct file *filp, struct vm_area_struct *vma);
47
48/* mmap a gem object to userspace. */
49int rockchip_gem_mmap_buf(struct drm_gem_object *obj,
50			  struct vm_area_struct *vma);
51
52struct rockchip_gem_object *
53	rockchip_gem_create_object(struct drm_device *drm, unsigned int size,
54				   bool alloc_kmap);
55
56void rockchip_gem_free_object(struct drm_gem_object *obj);
57
58int rockchip_gem_dumb_create(struct drm_file *file_priv,
59			     struct drm_device *dev,
60			     struct drm_mode_create_dumb *args);
61#endif /* _ROCKCHIP_DRM_GEM_H */