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_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_locked(struct drm_prime_file_private *prime_fpriv, 78 struct dma_buf *dma_buf); 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 kthread_destroy_worker(vblank->worker); 108 } 109 110 int drm_vblank_worker_init(struct drm_vblank_crtc *vblank); 111 void drm_vblank_cancel_pending_works(struct drm_vblank_crtc *vblank); 112 void drm_handle_vblank_works(struct drm_vblank_crtc *vblank); 113 114 /* IOCTLS */ 115 int drm_wait_vblank_ioctl(struct drm_device *dev, void *data, 116 struct drm_file *filp); 117 int drm_legacy_modeset_ctl_ioctl(struct drm_device *dev, void *data, 118 struct drm_file *file_priv); 119 120 /* drm_irq.c */ 121 122 /* IOCTLS */ 123 #if IS_ENABLED(CONFIG_DRM_LEGACY) 124 int drm_legacy_irq_control(struct drm_device *dev, void *data, 125 struct drm_file *file_priv); 126 #endif 127 128 int drm_crtc_get_sequence_ioctl(struct drm_device *dev, void *data, 129 struct drm_file *filp); 130 131 int drm_crtc_queue_sequence_ioctl(struct drm_device *dev, void *data, 132 struct drm_file *filp); 133 134 /* drm_auth.c */ 135 int drm_getmagic(struct drm_device *dev, void *data, 136 struct drm_file *file_priv); 137 int drm_authmagic(struct drm_device *dev, void *data, 138 struct drm_file *file_priv); 139 int drm_setmaster_ioctl(struct drm_device *dev, void *data, 140 struct drm_file *file_priv); 141 int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 142 struct drm_file *file_priv); 143 int drm_master_open(struct drm_file *file_priv); 144 void drm_master_release(struct drm_file *file_priv); 145 bool drm_master_internal_acquire(struct drm_device *dev); 146 void drm_master_internal_release(struct drm_device *dev); 147 148 /* drm_sysfs.c */ 149 extern struct class *drm_class; 150 151 int drm_sysfs_init(void); 152 void drm_sysfs_destroy(void); 153 struct device *drm_sysfs_minor_alloc(struct drm_minor *minor); 154 int drm_sysfs_connector_add(struct drm_connector *connector); 155 void drm_sysfs_connector_remove(struct drm_connector *connector); 156 157 void drm_sysfs_lease_event(struct drm_device *dev); 158 159 /* drm_gem.c */ 160 int drm_gem_init(struct drm_device *dev); 161 int drm_gem_handle_create_tail(struct drm_file *file_priv, 162 struct drm_gem_object *obj, 163 u32 *handlep); 164 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 165 struct drm_file *file_priv); 166 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 167 struct drm_file *file_priv); 168 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 169 struct drm_file *file_priv); 170 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private); 171 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private); 172 void drm_gem_print_info(struct drm_printer *p, unsigned int indent, 173 const struct drm_gem_object *obj); 174 175 int drm_gem_pin(struct drm_gem_object *obj); 176 void drm_gem_unpin(struct drm_gem_object *obj); 177 int drm_gem_vmap(struct drm_gem_object *obj, struct dma_buf_map *map); 178 void drm_gem_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); 179 180 int drm_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev, 181 u32 handle); 182 183 /* drm_debugfs.c drm_debugfs_crc.c */ 184 #if defined(CONFIG_DEBUG_FS) 185 int drm_debugfs_init(struct drm_minor *minor, int minor_id, 186 struct dentry *root); 187 void drm_debugfs_cleanup(struct drm_minor *minor); 188 void drm_debugfs_connector_add(struct drm_connector *connector); 189 void drm_debugfs_connector_remove(struct drm_connector *connector); 190 void drm_debugfs_crtc_add(struct drm_crtc *crtc); 191 void drm_debugfs_crtc_remove(struct drm_crtc *crtc); 192 void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc); 193 #else 194 static inline int drm_debugfs_init(struct drm_minor *minor, int minor_id, 195 struct dentry *root) 196 { 197 return 0; 198 } 199 200 static inline void drm_debugfs_cleanup(struct drm_minor *minor) 201 { 202 } 203 204 static inline void drm_debugfs_connector_add(struct drm_connector *connector) 205 { 206 } 207 static inline void drm_debugfs_connector_remove(struct drm_connector *connector) 208 { 209 } 210 211 static inline void drm_debugfs_crtc_add(struct drm_crtc *crtc) 212 { 213 } 214 static inline void drm_debugfs_crtc_remove(struct drm_crtc *crtc) 215 { 216 } 217 218 static inline void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc) 219 { 220 } 221 222 #endif 223 224 drm_ioctl_t drm_version; 225 drm_ioctl_t drm_getunique; 226 drm_ioctl_t drm_getclient; 227 228 /* drm_syncobj.c */ 229 void drm_syncobj_open(struct drm_file *file_private); 230 void drm_syncobj_release(struct drm_file *file_private); 231 int drm_syncobj_create_ioctl(struct drm_device *dev, void *data, 232 struct drm_file *file_private); 233 int drm_syncobj_destroy_ioctl(struct drm_device *dev, void *data, 234 struct drm_file *file_private); 235 int drm_syncobj_handle_to_fd_ioctl(struct drm_device *dev, void *data, 236 struct drm_file *file_private); 237 int drm_syncobj_fd_to_handle_ioctl(struct drm_device *dev, void *data, 238 struct drm_file *file_private); 239 int drm_syncobj_transfer_ioctl(struct drm_device *dev, void *data, 240 struct drm_file *file_private); 241 int drm_syncobj_wait_ioctl(struct drm_device *dev, void *data, 242 struct drm_file *file_private); 243 int drm_syncobj_timeline_wait_ioctl(struct drm_device *dev, void *data, 244 struct drm_file *file_private); 245 int drm_syncobj_reset_ioctl(struct drm_device *dev, void *data, 246 struct drm_file *file_private); 247 int drm_syncobj_signal_ioctl(struct drm_device *dev, void *data, 248 struct drm_file *file_private); 249 int drm_syncobj_timeline_signal_ioctl(struct drm_device *dev, void *data, 250 struct drm_file *file_private); 251 int drm_syncobj_query_ioctl(struct drm_device *dev, void *data, 252 struct drm_file *file_private); 253 254 /* drm_framebuffer.c */ 255 void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent, 256 const struct drm_framebuffer *fb); 257 void drm_framebuffer_debugfs_init(struct drm_minor *minor); 258