1 /* 2 * Copyright © 2014 Intel Corporation 3 * Daniel Vetter <daniel.vetter@ffwll.ch> 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be included in 13 * all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 21 * OTHER DEALINGS IN THE SOFTWARE. 22 */ 23 24 #include <linux/kthread.h> 25 26 #include <drm/drm_ioctl.h> 27 #include <drm/drm_vblank.h> 28 29 #define DRM_IF_MAJOR 1 30 #define DRM_IF_MINOR 4 31 32 #define DRM_IF_VERSION(maj, min) (maj << 16 | min) 33 34 struct dentry; 35 struct dma_buf; 36 struct drm_connector; 37 struct drm_crtc; 38 struct drm_framebuffer; 39 struct drm_gem_object; 40 struct drm_master; 41 struct drm_minor; 42 struct drm_prime_file_private; 43 struct drm_printer; 44 struct drm_vblank_crtc; 45 46 /* drm_file.c */ 47 extern struct rwlock drm_global_mutex; 48 bool drm_dev_needs_global_mutex(struct drm_device *dev); 49 struct drm_file *drm_file_alloc(struct drm_minor *minor); 50 void drm_file_free(struct drm_file *file); 51 void drm_lastclose(struct drm_device *dev); 52 53 #ifdef CONFIG_PCI 54 55 /* drm_pci.c */ 56 int drm_irq_by_busid(struct drm_device *dev, void *data, 57 struct drm_file *file_priv); 58 void drm_pci_agp_destroy(struct drm_device *dev); 59 int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master); 60 61 #else 62 63 static inline int drm_irq_by_busid(struct drm_device *dev, void *data, 64 struct drm_file *file_priv) 65 { 66 return -EINVAL; 67 } 68 69 static inline void drm_pci_agp_destroy(struct drm_device *dev) 70 { 71 } 72 73 static inline int drm_pci_set_busid(struct drm_device *dev, 74 struct drm_master *master) 75 { 76 return -EINVAL; 77 } 78 79 #endif 80 81 /* drm_prime.c */ 82 int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 83 struct drm_file *file_priv); 84 int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 85 struct drm_file *file_priv); 86 87 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 88 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 89 void drm_prime_remove_buf_handle_locked(struct drm_prime_file_private *prime_fpriv, 90 struct dma_buf *dma_buf); 91 92 /* drm_drv.c */ 93 struct drm_minor *drm_minor_acquire(unsigned int minor_id); 94 void drm_minor_release(struct drm_minor *minor); 95 96 /* drm_managed.c */ 97 void drm_managed_release(struct drm_device *dev); 98 void drmm_add_final_kfree(struct drm_device *dev, void *container); 99 100 /* drm_vblank.c */ 101 static inline bool drm_vblank_passed(u64 seq, u64 ref) 102 { 103 return (seq - ref) <= (1 << 23); 104 } 105 106 void drm_vblank_disable_and_save(struct drm_device *dev, unsigned int pipe); 107 int drm_vblank_get(struct drm_device *dev, unsigned int pipe); 108 void drm_vblank_put(struct drm_device *dev, unsigned int pipe); 109 u64 drm_vblank_count(struct drm_device *dev, unsigned int pipe); 110 111 /* drm_vblank_work.c */ 112 static inline void drm_vblank_flush_worker(struct drm_vblank_crtc *vblank) 113 { 114 kthread_flush_worker(vblank->worker); 115 } 116 117 static inline void drm_vblank_destroy_worker(struct drm_vblank_crtc *vblank) 118 { 119 kthread_destroy_worker(vblank->worker); 120 } 121 122 int drm_vblank_worker_init(struct drm_vblank_crtc *vblank); 123 void drm_vblank_cancel_pending_works(struct drm_vblank_crtc *vblank); 124 void drm_handle_vblank_works(struct drm_vblank_crtc *vblank); 125 126 /* IOCTLS */ 127 int drm_wait_vblank_ioctl(struct drm_device *dev, void *data, 128 struct drm_file *filp); 129 int drm_legacy_modeset_ctl_ioctl(struct drm_device *dev, void *data, 130 struct drm_file *file_priv); 131 132 /* drm_irq.c */ 133 134 /* IOCTLS */ 135 #if IS_ENABLED(CONFIG_DRM_LEGACY) 136 int drm_legacy_irq_control(struct drm_device *dev, void *data, 137 struct drm_file *file_priv); 138 #endif 139 140 int drm_crtc_get_sequence_ioctl(struct drm_device *dev, void *data, 141 struct drm_file *filp); 142 143 int drm_crtc_queue_sequence_ioctl(struct drm_device *dev, void *data, 144 struct drm_file *filp); 145 146 /* drm_auth.c */ 147 int drm_getmagic(struct drm_device *dev, void *data, 148 struct drm_file *file_priv); 149 int drm_authmagic(struct drm_device *dev, void *data, 150 struct drm_file *file_priv); 151 int drm_setmaster_ioctl(struct drm_device *dev, void *data, 152 struct drm_file *file_priv); 153 int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 154 struct drm_file *file_priv); 155 int drm_master_open(struct drm_file *file_priv); 156 void drm_master_release(struct drm_file *file_priv); 157 bool drm_master_internal_acquire(struct drm_device *dev); 158 void drm_master_internal_release(struct drm_device *dev); 159 160 /* drm_sysfs.c */ 161 #ifdef __linux__ 162 extern struct class *drm_class; 163 164 int drm_sysfs_init(void); 165 void drm_sysfs_destroy(void); 166 struct device *drm_sysfs_minor_alloc(struct drm_minor *minor); 167 int drm_sysfs_connector_add(struct drm_connector *connector); 168 void drm_sysfs_connector_remove(struct drm_connector *connector); 169 170 void drm_sysfs_lease_event(struct drm_device *dev); 171 #else 172 static inline struct device * 173 drm_sysfs_minor_alloc(struct drm_minor *minor) 174 { 175 return ERR_PTR(-ENOSYS); 176 } 177 178 static inline int 179 drm_sysfs_connector_add(struct drm_connector *connector) 180 { 181 return 0; 182 } 183 184 static inline void 185 drm_sysfs_connector_remove(struct drm_connector *connector) 186 { 187 } 188 #endif 189 190 /* drm_gem.c */ 191 struct drm_gem_object; 192 int drm_gem_init(struct drm_device *dev); 193 int drm_gem_handle_create_tail(struct drm_file *file_priv, 194 struct drm_gem_object *obj, 195 u32 *handlep); 196 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 197 struct drm_file *file_priv); 198 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 199 struct drm_file *file_priv); 200 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 201 struct drm_file *file_priv); 202 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private); 203 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private); 204 void drm_gem_print_info(struct drm_printer *p, unsigned int indent, 205 const struct drm_gem_object *obj); 206 207 int drm_gem_pin(struct drm_gem_object *obj); 208 void drm_gem_unpin(struct drm_gem_object *obj); 209 void *drm_gem_vmap(struct drm_gem_object *obj); 210 void drm_gem_vunmap(struct drm_gem_object *obj, void *vaddr); 211 212 /* drm_debugfs.c drm_debugfs_crc.c */ 213 #if defined(CONFIG_DEBUG_FS) 214 int drm_debugfs_init(struct drm_minor *minor, int minor_id, 215 struct dentry *root); 216 void drm_debugfs_cleanup(struct drm_minor *minor); 217 void drm_debugfs_connector_add(struct drm_connector *connector); 218 void drm_debugfs_connector_remove(struct drm_connector *connector); 219 void drm_debugfs_crtc_add(struct drm_crtc *crtc); 220 void drm_debugfs_crtc_remove(struct drm_crtc *crtc); 221 void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc); 222 #else 223 static inline int drm_debugfs_init(struct drm_minor *minor, int minor_id, 224 struct dentry *root) 225 { 226 return 0; 227 } 228 229 static inline void drm_debugfs_cleanup(struct drm_minor *minor) 230 { 231 } 232 233 static inline void drm_debugfs_connector_add(struct drm_connector *connector) 234 { 235 } 236 static inline void drm_debugfs_connector_remove(struct drm_connector *connector) 237 { 238 } 239 240 static inline void drm_debugfs_crtc_add(struct drm_crtc *crtc) 241 { 242 } 243 static inline void drm_debugfs_crtc_remove(struct drm_crtc *crtc) 244 { 245 } 246 247 static inline void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc) 248 { 249 } 250 251 #endif 252 253 drm_ioctl_t drm_version; 254 drm_ioctl_t drm_getunique; 255 drm_ioctl_t drm_getclient; 256 257 /* drm_syncobj.c */ 258 void drm_syncobj_open(struct drm_file *file_private); 259 void drm_syncobj_release(struct drm_file *file_private); 260 int drm_syncobj_create_ioctl(struct drm_device *dev, void *data, 261 struct drm_file *file_private); 262 int drm_syncobj_destroy_ioctl(struct drm_device *dev, void *data, 263 struct drm_file *file_private); 264 int drm_syncobj_handle_to_fd_ioctl(struct drm_device *dev, void *data, 265 struct drm_file *file_private); 266 int drm_syncobj_fd_to_handle_ioctl(struct drm_device *dev, void *data, 267 struct drm_file *file_private); 268 int drm_syncobj_transfer_ioctl(struct drm_device *dev, void *data, 269 struct drm_file *file_private); 270 int drm_syncobj_wait_ioctl(struct drm_device *dev, void *data, 271 struct drm_file *file_private); 272 int drm_syncobj_timeline_wait_ioctl(struct drm_device *dev, void *data, 273 struct drm_file *file_private); 274 int drm_syncobj_reset_ioctl(struct drm_device *dev, void *data, 275 struct drm_file *file_private); 276 int drm_syncobj_signal_ioctl(struct drm_device *dev, void *data, 277 struct drm_file *file_private); 278 int drm_syncobj_timeline_signal_ioctl(struct drm_device *dev, void *data, 279 struct drm_file *file_private); 280 int drm_syncobj_query_ioctl(struct drm_device *dev, void *data, 281 struct drm_file *file_private); 282 283 /* drm_framebuffer.c */ 284 void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent, 285 const struct drm_framebuffer *fb); 286 void drm_framebuffer_debugfs_init(struct drm_minor *minor); 287