1 #ifndef __DRM_LEGACY_H__ 2 #define __DRM_LEGACY_H__ 3 4 /* 5 * Copyright (c) 2014 David Herrmann <dh.herrmann@gmail.com> 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 23 * OTHER DEALINGS IN THE SOFTWARE. 24 */ 25 26 /* 27 * This file contains legacy interfaces that modern drm drivers 28 * should no longer be using. They cannot be removed as legacy 29 * drivers use them, and removing them are API breaks. 30 */ 31 #include <linux/list.h> 32 33 #include <drm/drm.h> 34 #include <drm/drm_device.h> 35 #include <drm/drm_legacy.h> 36 37 struct agp_memory; 38 struct drm_device; 39 struct drm_file; 40 struct drm_buf_desc; 41 42 /* 43 * Generic DRM Contexts 44 */ 45 46 #define DRM_KERNEL_CONTEXT 0 47 #define DRM_RESERVED_CONTEXTS 1 48 49 #if IS_ENABLED(CONFIG_DRM_LEGACY) 50 void drm_legacy_ctxbitmap_init(struct drm_device *dev); 51 void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev); 52 void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file); 53 #else 54 static inline void drm_legacy_ctxbitmap_init(struct drm_device *dev) {} 55 static inline void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev) {} 56 static inline void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file) {} 57 #endif 58 59 void drm_legacy_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 60 61 #if IS_ENABLED(CONFIG_DRM_LEGACY) 62 int drm_legacy_resctx(struct drm_device *d, void *v, struct drm_file *f); 63 int drm_legacy_addctx(struct drm_device *d, void *v, struct drm_file *f); 64 int drm_legacy_getctx(struct drm_device *d, void *v, struct drm_file *f); 65 int drm_legacy_switchctx(struct drm_device *d, void *v, struct drm_file *f); 66 int drm_legacy_newctx(struct drm_device *d, void *v, struct drm_file *f); 67 int drm_legacy_rmctx(struct drm_device *d, void *v, struct drm_file *f); 68 69 int drm_legacy_setsareactx(struct drm_device *d, void *v, struct drm_file *f); 70 int drm_legacy_getsareactx(struct drm_device *d, void *v, struct drm_file *f); 71 #endif 72 73 /* 74 * Generic Buffer Management 75 */ 76 77 #define DRM_MAP_HASH_OFFSET 0x10000000 78 79 #if IS_ENABLED(CONFIG_DRM_LEGACY) 80 static inline int drm_legacy_create_map_hash(struct drm_device *dev) 81 { 82 return drm_ht_create(&dev->map_hash, 12); 83 } 84 85 static inline void drm_legacy_remove_map_hash(struct drm_device *dev) 86 { 87 drm_ht_remove(&dev->map_hash); 88 } 89 #else 90 static inline int drm_legacy_create_map_hash(struct drm_device *dev) 91 { 92 return 0; 93 } 94 95 static inline void drm_legacy_remove_map_hash(struct drm_device *dev) {} 96 #endif 97 98 99 #if IS_ENABLED(CONFIG_DRM_LEGACY) 100 int drm_legacy_getmap_ioctl(struct drm_device *dev, void *data, 101 struct drm_file *file_priv); 102 int drm_legacy_addmap_ioctl(struct drm_device *d, void *v, struct drm_file *f); 103 int drm_legacy_rmmap_ioctl(struct drm_device *d, void *v, struct drm_file *f); 104 105 int drm_legacy_addbufs(struct drm_device *d, void *v, struct drm_file *f); 106 int drm_legacy_infobufs(struct drm_device *d, void *v, struct drm_file *f); 107 int drm_legacy_markbufs(struct drm_device *d, void *v, struct drm_file *f); 108 int drm_legacy_freebufs(struct drm_device *d, void *v, struct drm_file *f); 109 int drm_legacy_mapbufs(struct drm_device *d, void *v, struct drm_file *f); 110 int drm_legacy_dma_ioctl(struct drm_device *d, void *v, struct drm_file *f); 111 #endif 112 113 int __drm_legacy_infobufs(struct drm_device *, void *, int *, 114 int (*)(void *, int, struct drm_buf_entry *)); 115 int __drm_legacy_mapbufs(struct drm_device *, void *, int *, 116 void __user **, 117 int (*)(void *, int, unsigned long, struct drm_buf *), 118 struct drm_file *); 119 120 #if IS_ENABLED(CONFIG_DRM_LEGACY) 121 void drm_legacy_master_rmmaps(struct drm_device *dev, 122 struct drm_master *master); 123 void drm_legacy_rmmaps(struct drm_device *dev); 124 #else 125 static inline void drm_legacy_master_rmmaps(struct drm_device *dev, 126 struct drm_master *master) {} 127 static inline void drm_legacy_rmmaps(struct drm_device *dev) {} 128 #endif 129 130 #if IS_ENABLED(CONFIG_DRM_LEGACY) 131 void drm_legacy_vma_flush(struct drm_device *d); 132 #else 133 static inline void drm_legacy_vma_flush(struct drm_device *d) 134 { 135 /* do nothing */ 136 } 137 #endif 138 139 /* 140 * AGP Support 141 */ 142 143 struct drm_agp_mem { 144 unsigned long handle; 145 struct agp_memory *memory; 146 unsigned long bound; 147 int pages; 148 struct list_head head; 149 }; 150 151 /* drm_agpsupport.c */ 152 #if IS_ENABLED(CONFIG_DRM_LEGACY) && IS_ENABLED(CONFIG_AGP) 153 void drm_legacy_agp_clear(struct drm_device *dev); 154 155 int drm_legacy_agp_acquire_ioctl(struct drm_device *dev, void *data, 156 struct drm_file *file_priv); 157 int drm_legacy_agp_release_ioctl(struct drm_device *dev, void *data, 158 struct drm_file *file_priv); 159 int drm_legacy_agp_enable_ioctl(struct drm_device *dev, void *data, 160 struct drm_file *file_priv); 161 int drm_legacy_agp_info_ioctl(struct drm_device *dev, void *data, 162 struct drm_file *file_priv); 163 int drm_legacy_agp_alloc_ioctl(struct drm_device *dev, void *data, 164 struct drm_file *file_priv); 165 int drm_legacy_agp_free_ioctl(struct drm_device *dev, void *data, 166 struct drm_file *file_priv); 167 int drm_legacy_agp_unbind_ioctl(struct drm_device *dev, void *data, 168 struct drm_file *file_priv); 169 int drm_legacy_agp_bind_ioctl(struct drm_device *dev, void *data, 170 struct drm_file *file_priv); 171 #else 172 static inline void drm_legacy_agp_clear(struct drm_device *dev) {} 173 #endif 174 175 /* drm_lock.c */ 176 #if IS_ENABLED(CONFIG_DRM_LEGACY) 177 int drm_legacy_lock(struct drm_device *d, void *v, struct drm_file *f); 178 int drm_legacy_unlock(struct drm_device *d, void *v, struct drm_file *f); 179 void drm_legacy_lock_release(struct drm_device *dev, struct file *filp); 180 #else 181 static inline void drm_legacy_lock_release(struct drm_device *dev, struct file *filp) {} 182 #endif 183 184 /* DMA support */ 185 #if IS_ENABLED(CONFIG_DRM_LEGACY) 186 int drm_legacy_dma_setup(struct drm_device *dev); 187 void drm_legacy_dma_takedown(struct drm_device *dev); 188 #else 189 static inline int drm_legacy_dma_setup(struct drm_device *dev) 190 { 191 return 0; 192 } 193 #endif 194 195 void drm_legacy_free_buffer(struct drm_device *dev, 196 struct drm_buf * buf); 197 #if IS_ENABLED(CONFIG_DRM_LEGACY) 198 void drm_legacy_reclaim_buffers(struct drm_device *dev, 199 struct drm_file *filp); 200 #else 201 static inline void drm_legacy_reclaim_buffers(struct drm_device *dev, 202 struct drm_file *filp) {} 203 #endif 204 205 /* Scatter Gather Support */ 206 #if IS_ENABLED(CONFIG_DRM_LEGACY) 207 void drm_legacy_sg_cleanup(struct drm_device *dev); 208 int drm_legacy_sg_alloc(struct drm_device *dev, void *data, 209 struct drm_file *file_priv); 210 int drm_legacy_sg_free(struct drm_device *dev, void *data, 211 struct drm_file *file_priv); 212 #endif 213 214 #if IS_ENABLED(CONFIG_DRM_LEGACY) 215 void drm_legacy_init_members(struct drm_device *dev); 216 void drm_legacy_destroy_members(struct drm_device *dev); 217 void drm_legacy_dev_reinit(struct drm_device *dev); 218 int drm_legacy_setup(struct drm_device * dev); 219 #else 220 static inline void drm_legacy_init_members(struct drm_device *dev) {} 221 static inline void drm_legacy_destroy_members(struct drm_device *dev) {} 222 static inline void drm_legacy_dev_reinit(struct drm_device *dev) {} 223 static inline int drm_legacy_setup(struct drm_device * dev) { return 0; } 224 #endif 225 226 #if IS_ENABLED(CONFIG_DRM_LEGACY) 227 void drm_legacy_lock_master_cleanup(struct drm_device *dev, struct drm_master *master); 228 #else 229 static inline void drm_legacy_lock_master_cleanup(struct drm_device *dev, struct drm_master *master) {} 230 #endif 231 232 #if IS_ENABLED(CONFIG_DRM_LEGACY) 233 void drm_master_legacy_init(struct drm_master *master); 234 #else 235 static inline void drm_master_legacy_init(struct drm_master *master) {} 236 #endif 237 238 /* drm_pci.c */ 239 #if IS_ENABLED(CONFIG_DRM_LEGACY) && IS_ENABLED(CONFIG_PCI) 240 int drm_legacy_irq_by_busid(struct drm_device *dev, void *data, struct drm_file *file_priv); 241 void drm_legacy_pci_agp_destroy(struct drm_device *dev); 242 #else 243 static inline int drm_legacy_irq_by_busid(struct drm_device *dev, void *data, 244 struct drm_file *file_priv) 245 { 246 return -EINVAL; 247 } 248 249 static inline void drm_legacy_pci_agp_destroy(struct drm_device *dev) {} 250 #endif 251 252 #endif /* __DRM_LEGACY_H__ */ 253