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 iosys_map; 37 struct drm_connector; 38 struct drm_crtc; 39 struct drm_framebuffer; 40 struct drm_gem_object; 41 struct drm_master; 42 struct drm_minor; 43 struct drm_prime_file_private; 44 struct drm_printer; 45 struct drm_vblank_crtc; 46 47 /* drm_file.c */ 48 extern struct mutex drm_global_mutex; 49 bool drm_dev_needs_global_mutex(struct drm_device *dev); 50 struct drm_file *drm_file_alloc(struct drm_minor *minor); 51 void drm_file_free(struct drm_file *file); 52 void drm_lastclose(struct drm_device *dev); 53 54 #ifdef CONFIG_PCI 55 56 /* drm_pci.c */ 57 int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master); 58 59 #else 60 61 static inline int drm_pci_set_busid(struct drm_device *dev, 62 struct drm_master *master) 63 { 64 return -EINVAL; 65 } 66 67 #endif 68 69 /* drm_prime.c */ 70 int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 71 struct drm_file *file_priv); 72 int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 73 struct drm_file *file_priv); 74 75 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 76 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 77 void drm_prime_remove_buf_handle(struct drm_prime_file_private *prime_fpriv, 78 uint32_t handle); 79 80 /* drm_drv.c */ 81 struct drm_minor *drm_minor_acquire(unsigned int minor_id); 82 void drm_minor_release(struct drm_minor *minor); 83 84 /* drm_managed.c */ 85 void drm_managed_release(struct drm_device *dev); 86 void drmm_add_final_kfree(struct drm_device *dev, void *container); 87 88 /* drm_vblank.c */ 89 static inline bool drm_vblank_passed(u64 seq, u64 ref) 90 { 91 return (seq - ref) <= (1 << 23); 92 } 93 94 void drm_vblank_disable_and_save(struct drm_device *dev, unsigned int pipe); 95 int drm_vblank_get(struct drm_device *dev, unsigned int pipe); 96 void drm_vblank_put(struct drm_device *dev, unsigned int pipe); 97 u64 drm_vblank_count(struct drm_device *dev, unsigned int pipe); 98 99 /* drm_vblank_work.c */ 100 static inline void drm_vblank_flush_worker(struct drm_vblank_crtc *vblank) 101 { 102 kthread_flush_worker(vblank->worker); 103 } 104 105 static inline void drm_vblank_destroy_worker(struct drm_vblank_crtc *vblank) 106 { 107 if (vblank->worker) 108 kthread_destroy_worker(vblank->worker); 109 } 110 111 int drm_vblank_worker_init(struct drm_vblank_crtc *vblank); 112 void drm_vblank_cancel_pending_works(struct drm_vblank_crtc *vblank); 113 void drm_handle_vblank_works(struct drm_vblank_crtc *vblank); 114 115 /* IOCTLS */ 116 int drm_wait_vblank_ioctl(struct drm_device *dev, void *data, 117 struct drm_file *filp); 118 int drm_legacy_modeset_ctl_ioctl(struct drm_device *dev, void *data, 119 struct drm_file *file_priv); 120 121 /* drm_irq.c */ 122 123 /* IOCTLS */ 124 #if IS_ENABLED(CONFIG_DRM_LEGACY) 125 int drm_legacy_irq_control(struct drm_device *dev, void *data, 126 struct drm_file *file_priv); 127 #endif 128 129 int drm_crtc_get_sequence_ioctl(struct drm_device *dev, void *data, 130 struct drm_file *filp); 131 132 int drm_crtc_queue_sequence_ioctl(struct drm_device *dev, void *data, 133 struct drm_file *filp); 134 135 /* drm_auth.c */ 136 int drm_getmagic(struct drm_device *dev, void *data, 137 struct drm_file *file_priv); 138 int drm_authmagic(struct drm_device *dev, void *data, 139 struct drm_file *file_priv); 140 int drm_setmaster_ioctl(struct drm_device *dev, void *data, 141 struct drm_file *file_priv); 142 int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 143 struct drm_file *file_priv); 144 int drm_master_open(struct drm_file *file_priv); 145 void drm_master_release(struct drm_file *file_priv); 146 bool drm_master_internal_acquire(struct drm_device *dev); 147 void drm_master_internal_release(struct drm_device *dev); 148 149 /* drm_sysfs.c */ 150 extern struct class *drm_class; 151 152 int drm_sysfs_init(void); 153 void drm_sysfs_destroy(void); 154 struct device *drm_sysfs_minor_alloc(struct drm_minor *minor); 155 int drm_sysfs_connector_add(struct drm_connector *connector); 156 int drm_sysfs_connector_add_late(struct drm_connector *connector); 157 void drm_sysfs_connector_remove_early(struct drm_connector *connector); 158 void drm_sysfs_connector_remove(struct drm_connector *connector); 159 160 void drm_sysfs_lease_event(struct drm_device *dev); 161 162 /* drm_gem.c */ 163 int drm_gem_init(struct drm_device *dev); 164 int drm_gem_handle_create_tail(struct drm_file *file_priv, 165 struct drm_gem_object *obj, 166 u32 *handlep); 167 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 168 struct drm_file *file_priv); 169 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 170 struct drm_file *file_priv); 171 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 172 struct drm_file *file_priv); 173 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private); 174 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private); 175 void drm_gem_print_info(struct drm_printer *p, unsigned int indent, 176 const struct drm_gem_object *obj); 177 178 int drm_gem_pin(struct drm_gem_object *obj); 179 void drm_gem_unpin(struct drm_gem_object *obj); 180 int drm_gem_vmap(struct drm_gem_object *obj, struct iosys_map *map); 181 void drm_gem_vunmap(struct drm_gem_object *obj, struct iosys_map *map); 182 183 /* drm_debugfs.c drm_debugfs_crc.c */ 184 #if defined(CONFIG_DEBUG_FS) 185 void drm_debugfs_dev_fini(struct drm_device *dev); 186 void drm_debugfs_dev_register(struct drm_device *dev); 187 int drm_debugfs_register(struct drm_minor *minor, int minor_id, 188 struct dentry *root); 189 void drm_debugfs_unregister(struct drm_minor *minor); 190 void drm_debugfs_connector_add(struct drm_connector *connector); 191 void drm_debugfs_connector_remove(struct drm_connector *connector); 192 void drm_debugfs_crtc_add(struct drm_crtc *crtc); 193 void drm_debugfs_crtc_remove(struct drm_crtc *crtc); 194 void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc); 195 #else 196 static inline void drm_debugfs_dev_fini(struct drm_device *dev) 197 { 198 } 199 200 static inline void drm_debugfs_dev_register(struct drm_device *dev) 201 { 202 } 203 204 static inline int drm_debugfs_register(struct drm_minor *minor, int minor_id, 205 struct dentry *root) 206 { 207 return 0; 208 } 209 210 static inline void drm_debugfs_unregister(struct drm_minor *minor) 211 { 212 } 213 214 static inline void drm_debugfs_connector_add(struct drm_connector *connector) 215 { 216 } 217 static inline void drm_debugfs_connector_remove(struct drm_connector *connector) 218 { 219 } 220 221 static inline void drm_debugfs_crtc_add(struct drm_crtc *crtc) 222 { 223 } 224 static inline void drm_debugfs_crtc_remove(struct drm_crtc *crtc) 225 { 226 } 227 228 static inline void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc) 229 { 230 } 231 232 #endif 233 234 drm_ioctl_t drm_version; 235 drm_ioctl_t drm_getunique; 236 drm_ioctl_t drm_getclient; 237 238 /* drm_syncobj.c */ 239 void drm_syncobj_open(struct drm_file *file_private); 240 void drm_syncobj_release(struct drm_file *file_private); 241 int drm_syncobj_create_ioctl(struct drm_device *dev, void *data, 242 struct drm_file *file_private); 243 int drm_syncobj_destroy_ioctl(struct drm_device *dev, void *data, 244 struct drm_file *file_private); 245 int drm_syncobj_handle_to_fd_ioctl(struct drm_device *dev, void *data, 246 struct drm_file *file_private); 247 int drm_syncobj_fd_to_handle_ioctl(struct drm_device *dev, void *data, 248 struct drm_file *file_private); 249 int drm_syncobj_transfer_ioctl(struct drm_device *dev, void *data, 250 struct drm_file *file_private); 251 int drm_syncobj_wait_ioctl(struct drm_device *dev, void *data, 252 struct drm_file *file_private); 253 int drm_syncobj_timeline_wait_ioctl(struct drm_device *dev, void *data, 254 struct drm_file *file_private); 255 int drm_syncobj_eventfd_ioctl(struct drm_device *dev, void *data, 256 struct drm_file *file_private); 257 int drm_syncobj_reset_ioctl(struct drm_device *dev, void *data, 258 struct drm_file *file_private); 259 int drm_syncobj_signal_ioctl(struct drm_device *dev, void *data, 260 struct drm_file *file_private); 261 int drm_syncobj_timeline_signal_ioctl(struct drm_device *dev, void *data, 262 struct drm_file *file_private); 263 int drm_syncobj_query_ioctl(struct drm_device *dev, void *data, 264 struct drm_file *file_private); 265 266 /* drm_framebuffer.c */ 267 void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent, 268 const struct drm_framebuffer *fb); 269 void drm_framebuffer_debugfs_init(struct drm_device *dev); 270