LXR linux/drivers/gpu/drm/drm

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