1 /* $NetBSD: drm_legacy.h,v 1.3 2021/12/18 23:44:57 riastradh Exp $ */ 2 3 #ifndef __DRM_LEGACY_H__ 4 #define __DRM_LEGACY_H__ 5 6 /* 7 * Copyright (c) 2014 David Herrmann <dh.herrmann (at) gmail.com> 8 * 9 * Permission is hereby granted, free of charge, to any person obtaining a 10 * copy of this software and associated documentation files (the "Software"), 11 * to deal in the Software without restriction, including without limitation 12 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 13 * and/or sell copies of the Software, and to permit persons to whom the 14 * Software is furnished to do so, subject to the following conditions: 15 * 16 * The above copyright notice and this permission notice shall be included in 17 * all copies or substantial portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 22 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 25 * OTHER DEALINGS IN THE SOFTWARE. 26 */ 27 28 /* 29 * This file contains legacy interfaces that modern drm drivers 30 * should no longer be using. They cannot be removed as legacy 31 * drivers use them, and removing them are API breaks. 32 */ 33 #include <linux/list.h> 34 35 #include <drm/drm.h> 36 #include <drm/drm_device.h> 37 #include <drm/drm_legacy.h> 38 39 struct agp_memory; 40 struct drm_device; 41 struct drm_file; 42 struct drm_buf_desc; 43 44 /* 45 * Generic DRM Contexts 46 */ 47 48 #define DRM_KERNEL_CONTEXT 0 49 #define DRM_RESERVED_CONTEXTS 1 50 51 #if IS_ENABLED(CONFIG_DRM_LEGACY) 52 void drm_legacy_ctxbitmap_init(struct drm_device *dev); 53 void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev); 54 void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file); 55 #else 56 static inline void drm_legacy_ctxbitmap_init(struct drm_device *dev) {} 57 static inline void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev) {} 58 static inline void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file) {} 59 #endif 60 61 void drm_legacy_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 62 63 #if IS_ENABLED(CONFIG_DRM_LEGACY) 64 int drm_legacy_resctx(struct drm_device *d, void *v, struct drm_file *f); 65 int drm_legacy_addctx(struct drm_device *d, void *v, struct drm_file *f); 66 int drm_legacy_getctx(struct drm_device *d, void *v, struct drm_file *f); 67 int drm_legacy_switchctx(struct drm_device *d, void *v, struct drm_file *f); 68 int drm_legacy_newctx(struct drm_device *d, void *v, struct drm_file *f); 69 int drm_legacy_rmctx(struct drm_device *d, void *v, struct drm_file *f); 70 71 int drm_legacy_setsareactx(struct drm_device *d, void *v, struct drm_file *f); 72 int drm_legacy_getsareactx(struct drm_device *d, void *v, struct drm_file *f); 73 #endif 74 75 /* 76 * Generic Buffer Management 77 */ 78 79 #define DRM_MAP_HASH_OFFSET 0x10000000 80 81 #if IS_ENABLED(CONFIG_DRM_LEGACY) 82 static inline int drm_legacy_create_map_hash(struct drm_device *dev) 83 { 84 return drm_ht_create(&dev->map_hash, 12); 85 } 86 87 static inline void drm_legacy_remove_map_hash(struct drm_device *dev) 88 { 89 drm_ht_remove(&dev->map_hash); 90 } 91 #else 92 static inline int drm_legacy_create_map_hash(struct drm_device *dev) 93 { 94 return 0; 95 } 96 97 static inline void drm_legacy_remove_map_hash(struct drm_device *dev) {} 98 #endif 99 100 101 #if IS_ENABLED(CONFIG_DRM_LEGACY) 102 int drm_legacy_getmap_ioctl(struct drm_device *dev, void *data, 103 struct drm_file *file_priv); 104 int drm_legacy_addmap_ioctl(struct drm_device *d, void *v, struct drm_file *f); 105 int drm_legacy_rmmap_ioctl(struct drm_device *d, void *v, struct drm_file *f); 106 107 int drm_legacy_addbufs(struct drm_device *d, void *v, struct drm_file *f); 108 int drm_legacy_infobufs(struct drm_device *d, void *v, struct drm_file *f); 109 int drm_legacy_markbufs(struct drm_device *d, void *v, struct drm_file *f); 110 int drm_legacy_freebufs(struct drm_device *d, void *v, struct drm_file *f); 111 int drm_legacy_mapbufs(struct drm_device *d, void *v, struct drm_file *f); 112 int drm_legacy_dma_ioctl(struct drm_device *d, void *v, struct drm_file *f); 113 #endif 114 115 int __drm_legacy_infobufs(struct drm_device *, void *, int *, 116 int (*)(void *, int, struct drm_buf_entry *)); 117 int __drm_legacy_mapbufs(struct drm_device *, void *, int *, 118 void __user **, 119 int (*)(void *, int, unsigned long, struct drm_buf *), 120 struct drm_file *); 121 122 #if IS_ENABLED(CONFIG_DRM_LEGACY) 123 void drm_legacy_master_rmmaps(struct drm_device *dev, 124 struct drm_master *master); 125 void drm_legacy_rmmaps(struct drm_device *dev); 126 #else 127 static inline void drm_legacy_master_rmmaps(struct drm_device *dev, 128 struct drm_master *master) {} 129 static inline void drm_legacy_rmmaps(struct drm_device *dev) {} 130 #endif 131 132 #if IS_ENABLED(CONFIG_DRM_VM) && IS_ENABLED(CONFIG_DRM_LEGACY) 133 void drm_legacy_vma_flush(struct drm_device *d); 134 #else 135 static inline void drm_legacy_vma_flush(struct drm_device *d) 136 { 137 /* do nothing */ 138 } 139 #endif 140 141 /* 142 * AGP Support 143 */ 144 145 struct drm_agp_mem { 146 unsigned long handle; 147 struct agp_memory *memory; 148 unsigned long bound; 149 int pages; 150 struct list_head head; 151 }; 152 153 /* drm_lock.c */ 154 #if IS_ENABLED(CONFIG_DRM_LEGACY) 155 int drm_legacy_lock(struct drm_device *d, void *v, struct drm_file *f); 156 int drm_legacy_unlock(struct drm_device *d, void *v, struct drm_file *f); 157 void drm_legacy_lock_release(struct drm_device *dev, struct file *filp); 158 #else 159 static inline void drm_legacy_lock_release(struct drm_device *dev, struct file *filp) {} 160 #endif 161 162 /* DMA support */ 163 #if IS_ENABLED(CONFIG_DRM_LEGACY) 164 int drm_legacy_dma_setup(struct drm_device *dev); 165 void drm_legacy_dma_takedown(struct drm_device *dev); 166 #else 167 static inline int drm_legacy_dma_setup(struct drm_device *dev) 168 { 169 return 0; 170 } 171 #endif 172 173 void drm_legacy_free_buffer(struct drm_device *dev, 174 struct drm_buf * buf); 175 #if IS_ENABLED(CONFIG_DRM_LEGACY) 176 void drm_legacy_reclaim_buffers(struct drm_device *dev, 177 struct drm_file *filp); 178 #else 179 static inline void drm_legacy_reclaim_buffers(struct drm_device *dev, 180 struct drm_file *filp) {} 181 #endif 182 183 /* Scatter Gather Support */ 184 #if IS_ENABLED(CONFIG_DRM_LEGACY) 185 void drm_legacy_sg_cleanup(struct drm_device *dev); 186 int drm_legacy_sg_alloc(struct drm_device *dev, void *data, 187 struct drm_file *file_priv); 188 int drm_legacy_sg_free(struct drm_device *dev, void *data, 189 struct drm_file *file_priv); 190 #endif 191 192 #if IS_ENABLED(CONFIG_DRM_LEGACY) 193 void drm_legacy_init_members(struct drm_device *dev); 194 void drm_legacy_destroy_members(struct drm_device *dev); 195 void drm_legacy_dev_reinit(struct drm_device *dev); 196 int drm_legacy_setup(struct drm_device * dev); 197 #else 198 static inline void drm_legacy_init_members(struct drm_device *dev) {} 199 static inline void drm_legacy_destroy_members(struct drm_device *dev) {} 200 static inline void drm_legacy_dev_reinit(struct drm_device *dev) {} 201 static inline int drm_legacy_setup(struct drm_device * dev) { return 0; } 202 #endif 203 204 #if IS_ENABLED(CONFIG_DRM_LEGACY) 205 void drm_legacy_lock_master_cleanup(struct drm_device *dev, struct drm_master *master); 206 #else 207 static inline void drm_legacy_lock_master_cleanup(struct drm_device *dev, struct drm_master *master) {} 208 #endif 209 210 #if IS_ENABLED(CONFIG_DRM_LEGACY) 211 void drm_master_legacy_init(struct drm_master *master); 212 #else 213 static inline void drm_master_legacy_init(struct drm_master *master) {} 214 #endif 215 216 #endif /* __DRM_LEGACY_H__ */ 217
Indexes created Sat Sep 20 22:09:52 GMT 2025