1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
4 * Author:Mark Yao <mark.yao@rock-chips.com>
5 */
6
7#ifndef _ROCKCHIP_DRM_GEM_H
8#define _ROCKCHIP_DRM_GEM_H
9
10#define to_rockchip_obj(x) container_of(x, struct rockchip_gem_object, base)
11
12struct rockchip_gem_object {
13	struct drm_gem_object base;
14	unsigned int flags;
15
16	void *kvaddr;
17	dma_addr_t dma_addr;
18	/* Used when IOMMU is disabled */
19	unsigned long dma_attrs;
20
21	/* Used when IOMMU is enabled */
22	struct drm_mm_node mm;
23	unsigned long num_pages;
24	struct page **pages;
25	struct sg_table *sgt;
26	size_t size;
27};
28
29struct sg_table *rockchip_gem_prime_get_sg_table(struct drm_gem_object *obj);
30struct drm_gem_object *
31rockchip_gem_prime_import_sg_table(struct drm_device *dev,
32				   struct dma_buf_attachment *attach,
33				   struct sg_table *sg);
34void *rockchip_gem_prime_vmap(struct drm_gem_object *obj);
35void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
36
37/* drm driver mmap file operations */
38int rockchip_gem_mmap(struct file *filp, struct vm_area_struct *vma);
39
40/* mmap a gem object to userspace. */
41int rockchip_gem_mmap_buf(struct drm_gem_object *obj,
42			  struct vm_area_struct *vma);
43
44struct rockchip_gem_object *
45	rockchip_gem_create_object(struct drm_device *drm, unsigned int size,
46				   bool alloc_kmap);
47
48void rockchip_gem_free_object(struct drm_gem_object *obj);
49
50int rockchip_gem_dumb_create(struct drm_file *file_priv,
51			     struct drm_device *dev,
52			     struct drm_mode_create_dumb *args);
53#endif /* _ROCKCHIP_DRM_GEM_H */
54