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_managed.c */ 81 void drm_managed_release(struct drm_device *dev); 82 void drmm_add_final_kfree(struct drm_device *dev, void *container); 83 84 /* drm_vblank.c */ 85 static inline bool drm_vblank_passed(u64 seq, u64 ref) 86 { 87 return (seq - ref) <= (1 << 23); 88 } 89 90 void drm_vblank_disable_and_save(struct drm_device *dev, unsigned int pipe); 91 int drm_vblank_get(struct drm_device *dev, unsigned int pipe); 92 void drm_vblank_put(struct drm_device *dev, unsigned int pipe); 93 u64 drm_vblank_count(struct drm_device *dev, unsigned int pipe); 94 95 /* drm_vblank_work.c */ 96 static inline void drm_vblank_flush_worker(struct drm_vblank_crtc *vblank) 97 { 98 kthread_flush_worker(vblank->worker); 99 } 100 101 static inline void drm_vblank_destroy_worker(struct drm_vblank_crtc *vblank) 102 { 103 if (vblank->worker) 104 kthread_destroy_worker(vblank->worker); 105 } 106 107 int drm_vblank_worker_init(struct drm_vblank_crtc *vblank); 108 void drm_vblank_cancel_pending_works(struct drm_vblank_crtc *vblank); 109 void drm_handle_vblank_works(struct drm_vblank_crtc *vblank); 110 111 /* IOCTLS */ 112 int drm_wait_vblank_ioctl(struct drm_device *dev, void *data, 113 struct drm_file *filp); 114 int drm_legacy_modeset_ctl_ioctl(struct drm_device *dev, void *data, 115 struct drm_file *file_priv); 116 117 /* drm_irq.c */ 118 119 /* IOCTLS */ 120 #if IS_ENABLED(CONFIG_DRM_LEGACY) 121 int drm_legacy_irq_control(struct drm_device *dev, void *data, 122 struct drm_file *file_priv); 123 #endif 124 125 int drm_crtc_get_sequence_ioctl(struct drm_device *dev, void *data, 126 struct drm_file *filp); 127 128 int drm_crtc_queue_sequence_ioctl(struct drm_device *dev, void *data, 129 struct drm_file *filp); 130 131 /* drm_auth.c */ 132 int drm_getmagic(struct drm_device *dev, void *data, 133 struct drm_file *file_priv); 134 int drm_authmagic(struct drm_device *dev, void *data, 135 struct drm_file *file_priv); 136 int drm_setmaster_ioctl(struct drm_device *dev, void *data, 137 struct drm_file *file_priv); 138 int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 139 struct drm_file *file_priv); 140 int drm_master_open(struct drm_file *file_priv); 141 void drm_master_release(struct drm_file *file_priv); 142 bool drm_master_internal_acquire(struct drm_device *dev); 143 void drm_master_internal_release(struct drm_device *dev); 144 145 /* drm_sysfs.c */ 146 extern struct class *drm_class; 147 148 int drm_sysfs_init(void); 149 void drm_sysfs_destroy(void); 150 struct device *drm_sysfs_minor_alloc(struct drm_minor *minor); 151 int drm_sysfs_connector_add(struct drm_connector *connector); 152 void drm_sysfs_connector_remove(struct drm_connector *connector); 153 154 void drm_sysfs_lease_event(struct drm_device *dev); 155 156 /* drm_gem.c */ 157 int drm_gem_init(struct drm_device *dev); 158 int drm_gem_handle_create_tail(struct drm_file *file_priv, 159 struct drm_gem_object *obj, 160 u32 *handlep); 161 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 162 struct drm_file *file_priv); 163 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 164 struct drm_file *file_priv); 165 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 166 struct drm_file *file_priv); 167 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private); 168 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private); 169 void drm_gem_print_info(struct drm_printer *p, unsigned int indent, 170 const struct drm_gem_object *obj); 171 172 int drm_gem_pin(struct drm_gem_object *obj); 173 void drm_gem_unpin(struct drm_gem_object *obj); 174 int drm_gem_vmap(struct drm_gem_object *obj, struct iosys_map *map); 175 void drm_gem_vunmap(struct drm_gem_object *obj, struct iosys_map *map); 176 177 /* drm_debugfs.c drm_debugfs_crc.c */ 178 #if defined(CONFIG_DEBUG_FS) 179 int drm_debugfs_init(struct drm_minor *minor, int minor_id, 180 struct dentry *root); 181 void drm_debugfs_cleanup(struct drm_minor *minor); 182 void drm_debugfs_late_register(struct drm_device *dev); 183 void drm_debugfs_connector_add(struct drm_connector *connector); 184 void drm_debugfs_connector_remove(struct drm_connector *connector); 185 void drm_debugfs_crtc_add(struct drm_crtc *crtc); 186 void drm_debugfs_crtc_remove(struct drm_crtc *crtc); 187 void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc); 188 #else 189 static inline int drm_debugfs_init(struct drm_minor *minor, int minor_id, 190 struct dentry *root) 191 { 192 return 0; 193 } 194 195 static inline void drm_debugfs_cleanup(struct drm_minor *minor) 196 { 197 } 198 199 static inline void drm_debugfs_late_register(struct drm_device *dev) 200 { 201 } 202 203 static inline void drm_debugfs_connector_add(struct drm_connector *connector) 204 { 205 } 206 static inline void drm_debugfs_connector_remove(struct drm_connector *connector) 207 { 208 } 209 210 static inline void drm_debugfs_crtc_add(struct drm_crtc *crtc) 211 { 212 } 213 static inline void drm_debugfs_crtc_remove(struct drm_crtc *crtc) 214 { 215 } 216 217 static inline void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc) 218 { 219 } 220 221 #endif 222 223 drm_ioctl_t drm_version; 224 drm_ioctl_t drm_getunique; 225 drm_ioctl_t drm_getclient; 226 227 /* drm_syncobj.c */ 228 void drm_syncobj_open(struct drm_file *file_private); 229 void drm_syncobj_release(struct drm_file *file_private); 230 int drm_syncobj_create_ioctl(struct drm_device *dev, void *data, 231 struct drm_file *file_private); 232 int drm_syncobj_destroy_ioctl(struct drm_device *dev, void *data, 233 struct drm_file *file_private); 234 int drm_syncobj_handle_to_fd_ioctl(struct drm_device *dev, void *data, 235 struct drm_file *file_private); 236 int drm_syncobj_fd_to_handle_ioctl(struct drm_device *dev, void *data, 237 struct drm_file *file_private); 238 int drm_syncobj_transfer_ioctl(struct drm_device *dev, void *data, 239 struct drm_file *file_private); 240 int drm_syncobj_wait_ioctl(struct drm_device *dev, void *data, 241 struct drm_file *file_private); 242 int drm_syncobj_timeline_wait_ioctl(struct drm_device *dev, void *data, 243 struct drm_file *file_private); 244 int drm_syncobj_eventfd_ioctl(struct drm_device *dev, void *data, 245 struct drm_file *file_private); 246 int drm_syncobj_reset_ioctl(struct drm_device *dev, void *data, 247 struct drm_file *file_private); 248 int drm_syncobj_signal_ioctl(struct drm_device *dev, void *data, 249 struct drm_file *file_private); 250 int drm_syncobj_timeline_signal_ioctl(struct drm_device *dev, void *data, 251 struct drm_file *file_private); 252 int drm_syncobj_query_ioctl(struct drm_device *dev, void *data, 253 struct drm_file *file_private); 254 255 /* drm_framebuffer.c */ 256 void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent, 257 const struct drm_framebuffer *fb); 258 void drm_framebuffer_debugfs_init(struct drm_minor *minor); 259