1 /* $NetBSD: drm_agpsupport.h,v 1.10 2022/07/19 22:24:34 riastradh Exp $ */ 2 3 /* SPDX-License-Identifier: GPL-2.0 */ 4 #ifndef _DRM_AGPSUPPORT_H_ 5 #define _DRM_AGPSUPPORT_H_ 6 7 #include <linux/agp_backend.h> 8 #include <linux/kernel.h> 9 #include <linux/list.h> 10 #include <linux/mm.h> 11 #include <linux/mutex.h> 12 #include <linux/types.h> 13 #include <uapi/drm/drm.h> 14 15 #ifdef __NetBSD__ 16 #include <drm/drm_agp_netbsd.h> 17 #endif 18 19 struct drm_device; 20 struct drm_file; 21 22 struct drm_agp_hooks { 23 void (*agph_flush)(void); 24 25 struct drm_agp_head * 26 (*agph_init)(struct drm_device *); 27 void (*agph_clear)(struct drm_device *); 28 int (*agph_acquire)(struct drm_device *); 29 int (*agph_release)(struct drm_device *); 30 int (*agph_enable)(struct drm_device *, struct drm_agp_mode); 31 int (*agph_info)(struct drm_device *, struct drm_agp_info *); 32 int (*agph_alloc)(struct drm_device *, struct drm_agp_buffer *); 33 int (*agph_free)(struct drm_device *, struct drm_agp_buffer *); 34 int (*agph_bind)(struct drm_device *, struct drm_agp_binding *); 35 int (*agph_unbind)(struct drm_device *, struct drm_agp_binding *); 36 37 int (*agph_acquire_ioctl)(struct drm_device *, void *, 38 struct drm_file *); 39 int (*agph_release_ioctl)(struct drm_device *, void *, 40 struct drm_file *); 41 int (*agph_enable_ioctl)(struct drm_device *, void *, 42 struct drm_file *); 43 int (*agph_info_ioctl)(struct drm_device *, void *, 44 struct drm_file *); 45 int (*agph_alloc_ioctl)(struct drm_device *, void *, 46 struct drm_file *); 47 int (*agph_free_ioctl)(struct drm_device *, void *, 48 struct drm_file *); 49 int (*agph_bind_ioctl)(struct drm_device *, void *, 50 struct drm_file *); 51 int (*agph_unbind_ioctl)(struct drm_device *, void *, 52 struct drm_file *); 53 }; 54 55 struct drm_agp_head { 56 const struct drm_agp_hooks *hooks; 57 struct agp_kern_info agp_info; 58 struct list_head memory; 59 unsigned long mode; 60 struct agp_bridge_data *bridge; 61 int enabled; 62 int acquired; 63 unsigned long base; 64 int agp_mtrr; 65 int cant_use_aperture; 66 unsigned long page_mask; 67 }; 68 69 #if IS_ENABLED(CONFIG_AGP) 70 71 #ifdef __NetBSD__ 72 static inline void drm_free_agp(struct agp_bridge_data *, struct agp_memory *, int); 73 static inline int drm_bind_agp(struct agp_bridge_data *, struct agp_memory *, unsigned); 74 static inline int drm_unbind_agp(struct agp_bridge_data *, struct agp_memory *); 75 #else 76 void drm_free_agp(struct agp_memory * handle, int pages); 77 int drm_bind_agp(struct agp_memory * handle, unsigned int start); 78 int drm_unbind_agp(struct agp_memory * handle); 79 #endif 80 81 struct drm_agp_head *drm_agp_init(struct drm_device *dev); 82 void drm_legacy_agp_clear(struct drm_device *dev); 83 int drm_agp_acquire(struct drm_device *dev); 84 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 85 struct drm_file *file_priv); 86 int drm_agp_release(struct drm_device *dev); 87 int drm_agp_release_ioctl(struct drm_device *dev, void *data, 88 struct drm_file *file_priv); 89 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 90 int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 91 struct drm_file *file_priv); 92 int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info); 93 int drm_agp_info_ioctl(struct drm_device *dev, void *data, 94 struct drm_file *file_priv); 95 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 96 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 97 struct drm_file *file_priv); 98 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 99 int drm_agp_free_ioctl(struct drm_device *dev, void *data, 100 struct drm_file *file_priv); 101 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 102 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 103 struct drm_file *file_priv); 104 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 105 int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 106 struct drm_file *file_priv); 107 108 #ifdef __NetBSD__ 109 void drm_agp_flush(void); 110 void drm_agp_fini(struct drm_device *); 111 int drm_agp_register(const struct drm_agp_hooks *); 112 int drm_agp_deregister(const struct drm_agp_hooks *); 113 void drm_agp_hooks_init(void); 114 void drm_agp_hooks_fini(void); 115 int drmkms_agp_guarantee_initialized(void); 116 #endif 117 118 #else /* CONFIG_AGP */ 119 120 #if !defined(__NetBSD__) 121 122 static inline void drm_free_agp(struct agp_memory * handle, int pages) 123 { 124 } 125 126 static inline int drm_bind_agp(struct agp_memory * handle, unsigned int start) 127 { 128 return -ENODEV; 129 } 130 131 static inline int drm_unbind_agp(struct agp_memory * handle) 132 { 133 return -ENODEV; 134 } 135 #endif 136 137 static inline struct drm_agp_head *drm_agp_init(struct drm_device *dev) 138 { 139 return NULL; 140 } 141 142 static inline void drm_legacy_agp_clear(struct drm_device *dev) 143 { 144 } 145 146 static inline int drm_agp_acquire(struct drm_device *dev) 147 { 148 return -ENODEV; 149 } 150 151 static inline int drm_agp_release(struct drm_device *dev) 152 { 153 return -ENODEV; 154 } 155 156 static inline int drm_agp_enable(struct drm_device *dev, 157 struct drm_agp_mode mode) 158 { 159 return -ENODEV; 160 } 161 162 static inline int drm_agp_info(struct drm_device *dev, 163 struct drm_agp_info *info) 164 { 165 return -ENODEV; 166 } 167 168 static inline int drm_agp_alloc(struct drm_device *dev, 169 struct drm_agp_buffer *request) 170 { 171 return -ENODEV; 172 } 173 174 static inline int drm_agp_free(struct drm_device *dev, 175 struct drm_agp_buffer *request) 176 { 177 return -ENODEV; 178 } 179 180 static inline int drm_agp_unbind(struct drm_device *dev, 181 struct drm_agp_binding *request) 182 { 183 return -ENODEV; 184 } 185 186 static inline int drm_agp_bind(struct drm_device *dev, 187 struct drm_agp_binding *request) 188 { 189 return -ENODEV; 190 } 191 192 #endif /* CONFIG_AGP */ 193 194 #endif /* _DRM_AGPSUPPORT_H_ */ 195
Indexes created Mon Sep 22 13:09:51 GMT 2025