1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _DRM_AGPSUPPORT_H_
3#define _DRM_AGPSUPPORT_H_
4
5#include <linux/agp_backend.h>
6#include <linux/kernel.h>
7#include <linux/list.h>
8#include <linux/mm.h>
9#include <linux/mutex.h>
10#include <linux/types.h>
11#include <uapi/drm/drm.h>
12
13struct drm_device;
14struct drm_file;
15
16struct drm_agp_head {
17	struct agp_kern_info agp_info;
18	struct list_head memory;
19	unsigned long mode;
20	struct agp_bridge_data *bridge;
21	int enabled;
22	int acquired;
23	unsigned long base;
24	int agp_mtrr;
25	int cant_use_aperture;
26	unsigned long page_mask;
27};
28
29#if IS_ENABLED(CONFIG_AGP)
30
31void drm_free_agp(struct agp_memory * handle, int pages);
32int drm_bind_agp(struct agp_memory * handle, unsigned int start);
33int drm_unbind_agp(struct agp_memory * handle);
34
35struct drm_agp_head *drm_agp_init(struct drm_device *dev);
36void drm_legacy_agp_clear(struct drm_device *dev);
37int drm_agp_acquire(struct drm_device *dev);
38int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
39			  struct drm_file *file_priv);
40int drm_agp_release(struct drm_device *dev);
41int drm_agp_release_ioctl(struct drm_device *dev, void *data,
42			  struct drm_file *file_priv);
43int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
44int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
45			 struct drm_file *file_priv);
46int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
47int drm_agp_info_ioctl(struct drm_device *dev, void *data,
48		       struct drm_file *file_priv);
49int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
50int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
51			struct drm_file *file_priv);
52int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
53int drm_agp_free_ioctl(struct drm_device *dev, void *data,
54		       struct drm_file *file_priv);
55int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
56int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
57			 struct drm_file *file_priv);
58int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
59int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
60		       struct drm_file *file_priv);
61
62#else /* CONFIG_AGP */
63
64static inline void drm_free_agp(struct agp_memory * handle, int pages)
65{
66}
67
68static inline int drm_bind_agp(struct agp_memory * handle, unsigned int start)
69{
70	return -ENODEV;
71}
72
73static inline int drm_unbind_agp(struct agp_memory * handle)
74{
75	return -ENODEV;
76}
77
78static inline struct drm_agp_head *drm_agp_init(struct drm_device *dev)
79{
80	return NULL;
81}
82
83static inline void drm_legacy_agp_clear(struct drm_device *dev)
84{
85}
86
87static inline int drm_agp_acquire(struct drm_device *dev)
88{
89	return -ENODEV;
90}
91
92static inline int drm_agp_release(struct drm_device *dev)
93{
94	return -ENODEV;
95}
96
97static inline int drm_agp_enable(struct drm_device *dev,
98				 struct drm_agp_mode mode)
99{
100	return -ENODEV;
101}
102
103static inline int drm_agp_info(struct drm_device *dev,
104			       struct drm_agp_info *info)
105{
106	return -ENODEV;
107}
108
109static inline int drm_agp_alloc(struct drm_device *dev,
110				struct drm_agp_buffer *request)
111{
112	return -ENODEV;
113}
114
115static inline int drm_agp_free(struct drm_device *dev,
116			       struct drm_agp_buffer *request)
117{
118	return -ENODEV;
119}
120
121static inline int drm_agp_unbind(struct drm_device *dev,
122				 struct drm_agp_binding *request)
123{
124	return -ENODEV;
125}
126
127static inline int drm_agp_bind(struct drm_device *dev,
128			       struct drm_agp_binding *request)
129{
130	return -ENODEV;
131}
132
133#endif /* CONFIG_AGP */
134
135#endif /* _DRM_AGPSUPPORT_H_ */
136