1 #ifndef __DRM_GEM_CMA_HELPER_H__
2 #define __DRM_GEM_CMA_HELPER_H__
3 
4 #include <drm/drmP.h>
5 
6 struct drm_gem_cma_object {
7 	struct drm_gem_object base;
8 	dma_addr_t paddr;
9 	struct sg_table *sgt;
10 
11 	/* For objects with DMA memory allocated by GEM CMA */
12 	void *vaddr;
13 };
14 
15 static inline struct drm_gem_cma_object *
16 to_drm_gem_cma_obj(struct drm_gem_object *gem_obj)
17 {
18 	return container_of(gem_obj, struct drm_gem_cma_object, base);
19 }
20 
21 /* free gem object. */
22 void drm_gem_cma_free_object(struct drm_gem_object *gem_obj);
23 
24 /* create memory region for drm framebuffer. */
25 int drm_gem_cma_dumb_create(struct drm_file *file_priv,
26 		struct drm_device *drm, struct drm_mode_create_dumb *args);
27 
28 /* map memory region for drm framebuffer to user space. */
29 int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv,
30 		struct drm_device *drm, uint32_t handle, uint64_t *offset);
31 
32 /* set vm_flags and we can change the vm attribute to other one at here. */
33 int drm_gem_cma_mmap(struct file *filp, struct vm_area_struct *vma);
34 
35 /* allocate physical memory. */
36 struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm,
37 		unsigned int size);
38 
39 extern const struct vm_operations_struct drm_gem_cma_vm_ops;
40 
41 #ifdef CONFIG_DEBUG_FS
42 void drm_gem_cma_describe(struct drm_gem_cma_object *obj, struct seq_file *m);
43 #endif
44 
45 struct sg_table *drm_gem_cma_prime_get_sg_table(struct drm_gem_object *obj);
46 struct drm_gem_object *
47 drm_gem_cma_prime_import_sg_table(struct drm_device *dev, size_t size,
48 				  struct sg_table *sgt);
49 int drm_gem_cma_prime_mmap(struct drm_gem_object *obj,
50 			   struct vm_area_struct *vma);
51 void *drm_gem_cma_prime_vmap(struct drm_gem_object *obj);
52 void drm_gem_cma_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
53 
54 #endif /* __DRM_GEM_CMA_HELPER_H__ */
55 #ifndef __DRM_GEM_CMA_HELPER_H__
56 #define __DRM_GEM_CMA_HELPER_H__
57 
58 #include <drm/drmP.h>
59 
60 struct drm_gem_cma_object {
61 	struct drm_gem_object base;
62 	dma_addr_t paddr;
63 	struct sg_table *sgt;
64 
65 	/* For objects with DMA memory allocated by GEM CMA */
66 	void *vaddr;
67 };
68 
69 static inline struct drm_gem_cma_object *
70 to_drm_gem_cma_obj(struct drm_gem_object *gem_obj)
71 {
72 	return container_of(gem_obj, struct drm_gem_cma_object, base);
73 }
74 
75 /* free gem object. */
76 void drm_gem_cma_free_object(struct drm_gem_object *gem_obj);
77 
78 /* create memory region for drm framebuffer. */
79 int drm_gem_cma_dumb_create(struct drm_file *file_priv,
80 		struct drm_device *drm, struct drm_mode_create_dumb *args);
81 
82 /* map memory region for drm framebuffer to user space. */
83 int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv,
84 		struct drm_device *drm, uint32_t handle, uint64_t *offset);
85 
86 /* set vm_flags and we can change the vm attribute to other one at here. */
87 int drm_gem_cma_mmap(struct file *filp, struct vm_area_struct *vma);
88 
89 /* allocate physical memory. */
90 struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm,
91 		unsigned int size);
92 
93 extern const struct vm_operations_struct drm_gem_cma_vm_ops;
94 
95 #ifdef CONFIG_DEBUG_FS
96 void drm_gem_cma_describe(struct drm_gem_cma_object *obj, struct seq_file *m);
97 #endif
98 
99 struct sg_table *drm_gem_cma_prime_get_sg_table(struct drm_gem_object *obj);
100 struct drm_gem_object *
101 drm_gem_cma_prime_import_sg_table(struct drm_device *dev, size_t size,
102 				  struct sg_table *sgt);
103 int drm_gem_cma_prime_mmap(struct drm_gem_object *obj,
104 			   struct vm_area_struct *vma);
105 void *drm_gem_cma_prime_vmap(struct drm_gem_object *obj);
106 void drm_gem_cma_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
107 
108 #endif /* __DRM_GEM_CMA_HELPER_H__ */
109