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 #include <linux/types.h> 26 27 #include <drm/drm_ioctl.h> 28 #include <drm/drm_vblank.h> 29 30 #define DRM_IF_MAJOR 1 31 #define DRM_IF_MINOR 4 32 33 #define DRM_IF_VERSION(maj, min) (maj << 16 | min) 34 35 struct cea_sad; 36 struct dentry; 37 struct dma_buf; 38 struct iosys_map; 39 struct drm_connector; 40 struct drm_crtc; 41 struct drm_framebuffer; 42 struct drm_gem_object; 43 struct drm_master; 44 struct drm_minor; 45 struct drm_prime_file_private; 46 struct drm_printer; 47 struct drm_vblank_crtc; 48 49 /* drm_file.c */ 50 extern struct mutex drm_global_mutex; 51 bool drm_dev_needs_global_mutex(struct drm_device *dev); 52 struct drm_file *drm_file_alloc(struct drm_minor *minor); 53 void drm_file_free(struct drm_file *file); 54 void drm_lastclose(struct drm_device *dev); 55 56 #ifdef CONFIG_PCI 57 58 /* drm_pci.c */ 59 int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master); 60 61 #else 62 63 static inline int drm_pci_set_busid(struct drm_device *dev, 64 struct drm_master *master) 65 { 66 return -EINVAL; 67 } 68 69 #endif 70 71 /* drm_prime.c */ 72 int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 73 struct drm_file *file_priv); 74 int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 75 struct drm_file *file_priv); 76 77 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 78 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 79 void drm_prime_remove_buf_handle(struct drm_prime_file_private *prime_fpriv, 80 uint32_t handle); 81 82 /* drm_drv.c */ 83 struct drm_minor *drm_minor_acquire(unsigned int minor_id); 84 void drm_minor_release(struct drm_minor *minor); 85 86 /* drm_managed.c */ 87 void drm_managed_release(struct drm_device *dev); 88 void drmm_add_final_kfree(struct drm_device *dev, void *container); 89 90 /* drm_vblank.c */ 91 static inline bool drm_vblank_passed(u64 seq, u64 ref) 92 { 93 return (seq - ref) <= (1 << 23); 94 } 95 96 void drm_vblank_disable_and_save(struct drm_device *dev, unsigned int pipe); 97 int drm_vblank_get(struct drm_device *dev, unsigned int pipe); 98 void drm_vblank_put(struct drm_device *dev, unsigned int pipe); 99 u64 drm_vblank_count(struct drm_device *dev, unsigned int pipe); 100 101 /* drm_vblank_work.c */ 102 static inline void drm_vblank_flush_worker(struct drm_vblank_crtc *vblank) 103 { 104 kthread_flush_worker(vblank->worker); 105 } 106 107 static inline void drm_vblank_destroy_worker(struct drm_vblank_crtc *vblank) 108 { 109 if (vblank->worker) 110 kthread_destroy_worker(vblank->worker); 111 } 112 113 int drm_vblank_worker_init(struct drm_vblank_crtc *vblank); 114 void drm_vblank_cancel_pending_works(struct drm_vblank_crtc *vblank); 115 void drm_handle_vblank_works(struct drm_vblank_crtc *vblank); 116 117 /* IOCTLS */ 118 int drm_wait_vblank_ioctl(struct drm_device *dev, void *data, 119 struct drm_file *filp); 120 int drm_legacy_modeset_ctl_ioctl(struct drm_device *dev, void *data, 121 struct drm_file *file_priv); 122 123 /* drm_irq.c */ 124 125 /* IOCTLS */ 126 #if IS_ENABLED(CONFIG_DRM_LEGACY) 127 int drm_legacy_irq_control(struct drm_device *dev, void *data, 128 struct drm_file *file_priv); 129 #endif 130 131 int drm_crtc_get_sequence_ioctl(struct drm_device *dev, void *data, 132 struct drm_file *filp); 133 134 int drm_crtc_queue_sequence_ioctl(struct drm_device *dev, void *data, 135 struct drm_file *filp); 136 137 /* drm_auth.c */ 138 int drm_getmagic(struct drm_device *dev, void *data, 139 struct drm_file *file_priv); 140 int drm_authmagic(struct drm_device *dev, void *data, 141 struct drm_file *file_priv); 142 int drm_setmaster_ioctl(struct drm_device *dev, void *data, 143 struct drm_file *file_priv); 144 int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 145 struct drm_file *file_priv); 146 int drm_master_open(struct drm_file *file_priv); 147 void drm_master_release(struct drm_file *file_priv); 148 bool drm_master_internal_acquire(struct drm_device *dev); 149 void drm_master_internal_release(struct drm_device *dev); 150 151 /* drm_sysfs.c */ 152 extern struct class *drm_class; 153 154 int drm_sysfs_init(void); 155 void drm_sysfs_destroy(void); 156 struct device *drm_sysfs_minor_alloc(struct drm_minor *minor); 157 int drm_sysfs_connector_add(struct drm_connector *connector); 158 int drm_sysfs_connector_add_late(struct drm_connector *connector); 159 void drm_sysfs_connector_remove_early(struct drm_connector *connector); 160 void drm_sysfs_connector_remove(struct drm_connector *connector); 161 162 void drm_sysfs_lease_event(struct drm_device *dev); 163 164 /* drm_gem.c */ 165 int drm_gem_init(struct drm_device *dev); 166 int drm_gem_handle_create_tail(struct drm_file *file_priv, 167 struct drm_gem_object *obj, 168 u32 *handlep); 169 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 170 struct drm_file *file_priv); 171 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 172 struct drm_file *file_priv); 173 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 174 struct drm_file *file_priv); 175 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private); 176 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private); 177 void drm_gem_print_info(struct drm_printer *p, unsigned int indent, 178 const struct drm_gem_object *obj); 179 180 int drm_gem_pin(struct drm_gem_object *obj); 181 void drm_gem_unpin(struct drm_gem_object *obj); 182 int drm_gem_vmap(struct drm_gem_object *obj, struct iosys_map *map); 183 void drm_gem_vunmap(struct drm_gem_object *obj, struct iosys_map *map); 184 185 /* drm_debugfs.c drm_debugfs_crc.c */ 186 #if defined(CONFIG_DEBUG_FS) 187 void drm_debugfs_dev_fini(struct drm_device *dev); 188 void drm_debugfs_dev_register(struct drm_device *dev); 189 int drm_debugfs_register(struct drm_minor *minor, int minor_id, 190 struct dentry *root); 191 void drm_debugfs_unregister(struct drm_minor *minor); 192 void drm_debugfs_connector_add(struct drm_connector *connector); 193 void drm_debugfs_connector_remove(struct drm_connector *connector); 194 void drm_debugfs_crtc_add(struct drm_crtc *crtc); 195 void drm_debugfs_crtc_remove(struct drm_crtc *crtc); 196 void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc); 197 #else 198 static inline void drm_debugfs_dev_fini(struct drm_device *dev) 199 { 200 } 201 202 static inline void drm_debugfs_dev_register(struct drm_device *dev) 203 { 204 } 205 206 static inline int drm_debugfs_register(struct drm_minor *minor, int minor_id, 207 struct dentry *root) 208 { 209 return 0; 210 } 211 212 static inline void drm_debugfs_unregister(struct drm_minor *minor) 213 { 214 } 215 216 static inline void drm_debugfs_connector_add(struct drm_connector *connector) 217 { 218 } 219 static inline void drm_debugfs_connector_remove(struct drm_connector *connector) 220 { 221 } 222 223 static inline void drm_debugfs_crtc_add(struct drm_crtc *crtc) 224 { 225 } 226 static inline void drm_debugfs_crtc_remove(struct drm_crtc *crtc) 227 { 228 } 229 230 static inline void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc) 231 { 232 } 233 234 #endif 235 236 drm_ioctl_t drm_version; 237 drm_ioctl_t drm_getunique; 238 drm_ioctl_t drm_getclient; 239 240 /* drm_syncobj.c */ 241 void drm_syncobj_open(struct drm_file *file_private); 242 void drm_syncobj_release(struct drm_file *file_private); 243 int drm_syncobj_create_ioctl(struct drm_device *dev, void *data, 244 struct drm_file *file_private); 245 int drm_syncobj_destroy_ioctl(struct drm_device *dev, void *data, 246 struct drm_file *file_private); 247 int drm_syncobj_handle_to_fd_ioctl(struct drm_device *dev, void *data, 248 struct drm_file *file_private); 249 int drm_syncobj_fd_to_handle_ioctl(struct drm_device *dev, void *data, 250 struct drm_file *file_private); 251 int drm_syncobj_transfer_ioctl(struct drm_device *dev, void *data, 252 struct drm_file *file_private); 253 int drm_syncobj_wait_ioctl(struct drm_device *dev, void *data, 254 struct drm_file *file_private); 255 int drm_syncobj_timeline_wait_ioctl(struct drm_device *dev, void *data, 256 struct drm_file *file_private); 257 int drm_syncobj_eventfd_ioctl(struct drm_device *dev, void *data, 258 struct drm_file *file_private); 259 int drm_syncobj_reset_ioctl(struct drm_device *dev, void *data, 260 struct drm_file *file_private); 261 int drm_syncobj_signal_ioctl(struct drm_device *dev, void *data, 262 struct drm_file *file_private); 263 int drm_syncobj_timeline_signal_ioctl(struct drm_device *dev, void *data, 264 struct drm_file *file_private); 265 int drm_syncobj_query_ioctl(struct drm_device *dev, void *data, 266 struct drm_file *file_private); 267 268 /* drm_framebuffer.c */ 269 void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent, 270 const struct drm_framebuffer *fb); 271 void drm_framebuffer_debugfs_init(struct drm_device *dev); 272 273 /* drm_edid.c */ 274 void drm_edid_cta_sad_get(const struct cea_sad *cta_sad, u8 *sad); 275 void drm_edid_cta_sad_set(struct cea_sad *cta_sad, const u8 *sad); 276