drivers/gpu/drm/drm_internal.h

   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 struct drm_gem_object;
 174 int drm_gem_init(struct drm_device *dev);
 175 int drm_gem_handle_create_tail(struct drm_file *file_priv,
 176                                struct drm_gem_object *obj,
 177                                u32 *handlep);
 178 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
 179                         struct drm_file *file_priv);
 180 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
 181                         struct drm_file *file_priv);
 182 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
 183                        struct drm_file *file_priv);
 184 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
 185 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
 186 void drm_gem_print_info(struct drm_printer *p, unsigned int indent,
 187                         const struct drm_gem_object *obj);
 188
 189 int drm_gem_pin(struct drm_gem_object *obj);
 190 void drm_gem_unpin(struct drm_gem_object *obj);
 191 int drm_gem_vmap(struct drm_gem_object *obj, struct dma_buf_map *map);
 192 void drm_gem_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map);
 193
 194 /* drm_debugfs.c drm_debugfs_crc.c */
 195 #if defined(CONFIG_DEBUG_FS)
 196 int drm_debugfs_init(struct drm_minor *minor, int minor_id,
 197                      struct dentry *root);
 198 void drm_debugfs_cleanup(struct drm_minor *minor);
 199 void drm_debugfs_connector_add(struct drm_connector *connector);
 200 void drm_debugfs_connector_remove(struct drm_connector *connector);
 201 void drm_debugfs_crtc_add(struct drm_crtc *crtc);
 202 void drm_debugfs_crtc_remove(struct drm_crtc *crtc);
 203 void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc);
 204 #else
 205 static inline int drm_debugfs_init(struct drm_minor *minor, int minor_id,
 206                                    struct dentry *root)
 207 {
 208         return 0;
 209 }
 210
 211 static inline void drm_debugfs_cleanup(struct drm_minor *minor)
 212 {
 213 }
 214
 215 static inline void drm_debugfs_connector_add(struct drm_connector *connector)
 216 {
 217 }
 218 static inline void drm_debugfs_connector_remove(struct drm_connector *connector)
 219 {
 220 }
 221
 222 static inline void drm_debugfs_crtc_add(struct drm_crtc *crtc)
 223 {
 224 }
 225 static inline void drm_debugfs_crtc_remove(struct drm_crtc *crtc)
 226 {
 227 }
 228
 229 static inline void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc)
 230 {
 231 }
 232
 233 #endif
 234
 235 drm_ioctl_t drm_version;
 236 drm_ioctl_t drm_getunique;
 237 drm_ioctl_t drm_getclient;
 238
 239 /* drm_syncobj.c */
 240 void drm_syncobj_open(struct drm_file *file_private);
 241 void drm_syncobj_release(struct drm_file *file_private);
 242 int drm_syncobj_create_ioctl(struct drm_device *dev, void *data,
 243                              struct drm_file *file_private);
 244 int drm_syncobj_destroy_ioctl(struct drm_device *dev, void *data,
 245                               struct drm_file *file_private);
 246 int drm_syncobj_handle_to_fd_ioctl(struct drm_device *dev, void *data,
 247                                    struct drm_file *file_private);
 248 int drm_syncobj_fd_to_handle_ioctl(struct drm_device *dev, void *data,
 249                                    struct drm_file *file_private);
 250 int drm_syncobj_transfer_ioctl(struct drm_device *dev, void *data,
 251                                struct drm_file *file_private);
 252 int drm_syncobj_wait_ioctl(struct drm_device *dev, void *data,
 253                            struct drm_file *file_private);
 254 int drm_syncobj_timeline_wait_ioctl(struct drm_device *dev, void *data,
 255                                     struct drm_file *file_private);
 256 int drm_syncobj_reset_ioctl(struct drm_device *dev, void *data,
 257                             struct drm_file *file_private);
 258 int drm_syncobj_signal_ioctl(struct drm_device *dev, void *data,
 259                              struct drm_file *file_private);
 260 int drm_syncobj_timeline_signal_ioctl(struct drm_device *dev, void *data,
 261                                       struct drm_file *file_private);
 262 int drm_syncobj_query_ioctl(struct drm_device *dev, void *data,
 263                             struct drm_file *file_private);
 264
 265 /* drm_framebuffer.c */
 266 void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent,
 267                                 const struct drm_framebuffer *fb);
 268 void drm_framebuffer_debugfs_init(struct drm_minor *minor);