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 dma_buf_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_legacy_irq_by_busid(struct drm_device *dev, void *data, 58 struct drm_file *file_priv); 59 void drm_pci_agp_destroy(struct drm_device *dev); 60 int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master); 61 62 #else 63 64 static inline int drm_legacy_irq_by_busid(struct drm_device *dev, void *data, 65 struct drm_file *file_priv) 66 { 67 return -EINVAL; 68 } 69 70 static inline void drm_pci_agp_destroy(struct drm_device *dev) 71 { 72 } 73 74 static inline int drm_pci_set_busid(struct drm_device *dev, 75 struct drm_master *master) 76 { 77 return -EINVAL; 78 } 79 80 #endif 81 82 /* drm_prime.c */ 83 int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 84 struct drm_file *file_priv); 85 int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 86 struct drm_file *file_priv); 87 88 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 89 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 90 void drm_prime_remove_buf_handle_locked(struct drm_prime_file_private *prime_fpriv, 91 struct dma_buf *dma_buf); 92 93 /* drm_drv.c */ 94 struct drm_minor *drm_minor_acquire(unsigned int minor_id); 95 void drm_minor_release(struct drm_minor *minor); 96 97 /* drm_managed.c */ 98 void drm_managed_release(struct drm_device *dev); 99 void drmm_add_final_kfree(struct drm_device *dev, void *container); 100 101 /* drm_vblank.c */ 102 static inline bool drm_vblank_passed(u64 seq, u64 ref) 103 { 104 return (seq - ref) <= (1 << 23); 105 } 106 107 void drm_vblank_disable_and_save(struct drm_device *dev, unsigned int pipe); 108 int drm_vblank_get(struct drm_device *dev, unsigned int pipe); 109 void drm_vblank_put(struct drm_device *dev, unsigned int pipe); 110 u64 drm_vblank_count(struct drm_device *dev, unsigned int pipe); 111 112 /* drm_vblank_work.c */ 113 static inline void drm_vblank_flush_worker(struct drm_vblank_crtc *vblank) 114 { 115 kthread_flush_worker(vblank->worker); 116 } 117 118 static inline void drm_vblank_destroy_worker(struct drm_vblank_crtc *vblank) 119 { 120 kthread_destroy_worker(vblank->worker); 121 } 122 123 int drm_vblank_worker_init(struct drm_vblank_crtc *vblank); 124 void drm_vblank_cancel_pending_works(struct drm_vblank_crtc *vblank); 125 void drm_handle_vblank_works(struct drm_vblank_crtc *vblank); 126 127 /* IOCTLS */ 128 int drm_wait_vblank_ioctl(struct drm_device *dev, void *data, 129 struct drm_file *filp); 130 int drm_legacy_modeset_ctl_ioctl(struct drm_device *dev, void *data, 131 struct drm_file *file_priv); 132 133 /* drm_irq.c */ 134 135 /* IOCTLS */ 136 #if IS_ENABLED(CONFIG_DRM_LEGACY) 137 int drm_legacy_irq_control(struct drm_device *dev, void *data, 138 struct drm_file *file_priv); 139 #endif 140 141 int drm_crtc_get_sequence_ioctl(struct drm_device *dev, void *data, 142 struct drm_file *filp); 143 144 int drm_crtc_queue_sequence_ioctl(struct drm_device *dev, void *data, 145 struct drm_file *filp); 146 147 /* drm_auth.c */ 148 int drm_getmagic(struct drm_device *dev, void *data, 149 struct drm_file *file_priv); 150 int drm_authmagic(struct drm_device *dev, void *data, 151 struct drm_file *file_priv); 152 int drm_setmaster_ioctl(struct drm_device *dev, void *data, 153 struct drm_file *file_priv); 154 int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 155 struct drm_file *file_priv); 156 int drm_master_open(struct drm_file *file_priv); 157 void drm_master_release(struct drm_file *file_priv); 158 bool drm_master_internal_acquire(struct drm_device *dev); 159 void drm_master_internal_release(struct drm_device *dev); 160 161 /* drm_sysfs.c */ 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); 171 172 /* drm_gem.c */ 173 int drm_gem_init(struct drm_device *dev); 174 int drm_gem_handle_create_tail(struct drm_file *file_priv, 175 struct drm_gem_object *obj, 176 u32 *handlep); 177 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 178 struct drm_file *file_priv); 179 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 180 struct drm_file *file_priv); 181 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 182 struct drm_file *file_priv); 183 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private); 184 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private); 185 void drm_gem_print_info(struct drm_printer *p, unsigned int indent, 186 const struct drm_gem_object *obj); 187 188 int drm_gem_pin(struct drm_gem_object *obj); 189 void drm_gem_unpin(struct drm_gem_object *obj); 190 int drm_gem_vmap(struct drm_gem_object *obj, struct dma_buf_map *map); 191 void drm_gem_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); 192 193 int drm_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev, 194 u32 handle); 195 196 /* drm_debugfs.c drm_debugfs_crc.c */ 197 #if defined(CONFIG_DEBUG_FS) 198 int drm_debugfs_init(struct drm_minor *minor, int minor_id, 199 struct dentry *root); 200 void drm_debugfs_cleanup(struct drm_minor *minor); 201 void drm_debugfs_connector_add(struct drm_connector *connector); 202 void drm_debugfs_connector_remove(struct drm_connector *connector); 203 void drm_debugfs_crtc_add(struct drm_crtc *crtc); 204 void drm_debugfs_crtc_remove(struct drm_crtc *crtc); 205 void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc); 206 #else 207 static inline int drm_debugfs_init(struct drm_minor *minor, int minor_id, 208 struct dentry *root) 209 { 210 return 0; 211 } 212 213 static inline void drm_debugfs_cleanup(struct drm_minor *minor) 214 { 215 } 216 217 static inline void drm_debugfs_connector_add(struct drm_connector *connector) 218 { 219 } 220 static inline void drm_debugfs_connector_remove(struct drm_connector *connector) 221 { 222 } 223 224 static inline void drm_debugfs_crtc_add(struct drm_crtc *crtc) 225 { 226 } 227 static inline void drm_debugfs_crtc_remove(struct drm_crtc *crtc) 228 { 229 } 230 231 static inline void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc) 232 { 233 } 234 235 #endif 236 237 drm_ioctl_t drm_version; 238 drm_ioctl_t drm_getunique; 239 drm_ioctl_t drm_getclient; 240 241 /* drm_syncobj.c */ 242 void drm_syncobj_open(struct drm_file *file_private); 243 void drm_syncobj_release(struct drm_file *file_private); 244 int drm_syncobj_create_ioctl(struct drm_device *dev, void *data, 245 struct drm_file *file_private); 246 int drm_syncobj_destroy_ioctl(struct drm_device *dev, void *data, 247 struct drm_file *file_private); 248 int drm_syncobj_handle_to_fd_ioctl(struct drm_device *dev, void *data, 249 struct drm_file *file_private); 250 int drm_syncobj_fd_to_handle_ioctl(struct drm_device *dev, void *data, 251 struct drm_file *file_private); 252 int drm_syncobj_transfer_ioctl(struct drm_device *dev, void *data, 253 struct drm_file *file_private); 254 int drm_syncobj_wait_ioctl(struct drm_device *dev, void *data, 255 struct drm_file *file_private); 256 int drm_syncobj_timeline_wait_ioctl(struct drm_device *dev, void *data, 257 struct drm_file *file_private); 258 int drm_syncobj_reset_ioctl(struct drm_device *dev, void *data, 259 struct drm_file *file_private); 260 int drm_syncobj_signal_ioctl(struct drm_device *dev, void *data, 261 struct drm_file *file_private); 262 int drm_syncobj_timeline_signal_ioctl(struct drm_device *dev, void *data, 263 struct drm_file *file_private); 264 int drm_syncobj_query_ioctl(struct drm_device *dev, void *data, 265 struct drm_file *file_private); 266 267 /* drm_framebuffer.c */ 268 void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent, 269 const struct drm_framebuffer *fb); 270 void drm_framebuffer_debugfs_init(struct drm_minor *minor); 271