1#ifndef _DRM_AGPSUPPORT_H_
2#define _DRM_AGPSUPPORT_H_
3
4#include <linux/agp_backend.h>
5#include <linux/kernel.h>
6#include <linux/list.h>
7#include <linux/mm.h>
8#include <linux/mutex.h>
9#include <linux/types.h>
10#include <uapi/drm/drm.h>
11
12struct drm_device;
13struct drm_file;
14
15struct drm_agp_head {
16	struct agp_kern_info agp_info;
17	struct list_head memory;
18	unsigned long mode;
19	struct agp_bridge_data *bridge;
20	int enabled;
21	int acquired;
22	unsigned long base;
23	int agp_mtrr;
24	int cant_use_aperture;
25	unsigned long page_mask;
26};
27
28#if IS_ENABLED(CONFIG_AGP)
29
30void drm_free_agp(struct agp_memory * handle, int pages);
31int drm_bind_agp(struct agp_memory * handle, unsigned int start);
32int drm_unbind_agp(struct agp_memory * handle);
33struct agp_memory *drm_agp_bind_pages(struct drm_device *dev,
34				struct page **pages,
35				unsigned long num_pages,
36				uint32_t gtt_offset,
37				uint32_t type);
38
39struct drm_agp_head *drm_agp_init(struct drm_device *dev);
40void drm_agp_clear(struct drm_device *dev);
41int drm_agp_acquire(struct drm_device *dev);
42int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
43			  struct drm_file *file_priv);
44int drm_agp_release(struct drm_device *dev);
45int drm_agp_release_ioctl(struct drm_device *dev, void *data,
46			  struct drm_file *file_priv);
47int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
48int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
49			 struct drm_file *file_priv);
50int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
51int drm_agp_info_ioctl(struct drm_device *dev, void *data,
52		       struct drm_file *file_priv);
53int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
54int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
55			struct drm_file *file_priv);
56int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
57int drm_agp_free_ioctl(struct drm_device *dev, void *data,
58		       struct drm_file *file_priv);
59int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
60int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
61			 struct drm_file *file_priv);
62int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
63int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
64		       struct drm_file *file_priv);
65
66#else /* CONFIG_AGP */
67
68static inline void drm_free_agp(struct agp_memory * handle, int pages)
69{
70}
71
72static inline int drm_bind_agp(struct agp_memory * handle, unsigned int start)
73{
74	return -ENODEV;
75}
76
77static inline int drm_unbind_agp(struct agp_memory * handle)
78{
79	return -ENODEV;
80}
81
82static inline struct agp_memory *drm_agp_bind_pages(struct drm_device *dev,
83					      struct page **pages,
84					      unsigned long num_pages,
85					      uint32_t gtt_offset,
86					      uint32_t type)
87{
88	return NULL;
89}
90
91static inline struct drm_agp_head *drm_agp_init(struct drm_device *dev)
92{
93	return NULL;
94}
95
96static inline void drm_agp_clear(struct drm_device *dev)
97{
98}
99
100static inline int drm_agp_acquire(struct drm_device *dev)
101{
102	return -ENODEV;
103}
104
105static inline int drm_agp_release(struct drm_device *dev)
106{
107	return -ENODEV;
108}
109
110static inline int drm_agp_enable(struct drm_device *dev,
111				 struct drm_agp_mode mode)
112{
113	return -ENODEV;
114}
115
116static inline int drm_agp_info(struct drm_device *dev,
117			       struct drm_agp_info *info)
118{
119	return -ENODEV;
120}
121
122static inline int drm_agp_alloc(struct drm_device *dev,
123				struct drm_agp_buffer *request)
124{
125	return -ENODEV;
126}
127
128static inline int drm_agp_free(struct drm_device *dev,
129			       struct drm_agp_buffer *request)
130{
131	return -ENODEV;
132}
133
134static inline int drm_agp_unbind(struct drm_device *dev,
135				 struct drm_agp_binding *request)
136{
137	return -ENODEV;
138}
139
140static inline int drm_agp_bind(struct drm_device *dev,
141			       struct drm_agp_binding *request)
142{
143	return -ENODEV;
144}
145
146#endif /* CONFIG_AGP */
147
148#endif /* _DRM_AGPSUPPORT_H_ */
149