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_legacy_irq_by_busid(struct drm_device *dev, void *data,
  58                            struct drm_file *file_priv);
  59void drm_pci_agp_destroy(struct drm_device *dev);
  60int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master);
  61
  62#else
  63
  64static 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
  70static inline void drm_pci_agp_destroy(struct drm_device *dev)
  71{
  72}
  73
  74static 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 */
  83int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
  84                                 struct drm_file *file_priv);
  85int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
  86                                 struct drm_file *file_priv);
  87
  88void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
  89void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
  90void drm_prime_remove_buf_handle_locked(struct drm_prime_file_private *prime_fpriv,
  91                                        struct dma_buf *dma_buf);
  92
  93/* drm_drv.c */
  94struct drm_minor *drm_minor_acquire(unsigned int minor_id);
  95void drm_minor_release(struct drm_minor *minor);
  96
  97/* drm_managed.c */
  98void drm_managed_release(struct drm_device *dev);
  99void drmm_add_final_kfree(struct drm_device *dev, void *container);
 100
 101/* drm_vblank.c */
 102static inline bool drm_vblank_passed(u64 seq, u64 ref)
 103{
 104        return (seq - ref) <= (1 << 23);
 105}
 106
 107void drm_vblank_disable_and_save(struct drm_device *dev, unsigned int pipe);
 108int drm_vblank_get(struct drm_device *dev, unsigned int pipe);
 109void drm_vblank_put(struct drm_device *dev, unsigned int pipe);
 110u64 drm_vblank_count(struct drm_device *dev, unsigned int pipe);
 111
 112/* drm_vblank_work.c */
 113static inline void drm_vblank_flush_worker(struct drm_vblank_crtc *vblank)
 114{
 115        kthread_flush_worker(vblank->worker);
 116}
 117
 118static inline void drm_vblank_destroy_worker(struct drm_vblank_crtc *vblank)
 119{
 120        kthread_destroy_worker(vblank->worker);
 121}
 122
 123int drm_vblank_worker_init(struct drm_vblank_crtc *vblank);
 124void drm_vblank_cancel_pending_works(struct drm_vblank_crtc *vblank);
 125void drm_handle_vblank_works(struct drm_vblank_crtc *vblank);
 126
 127/* IOCTLS */
 128int drm_wait_vblank_ioctl(struct drm_device *dev, void *data,
 129                          struct drm_file *filp);
 130int 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)
 137int drm_legacy_irq_control(struct drm_device *dev, void *data,
 138                           struct drm_file *file_priv);
 139#endif
 140
 141int drm_crtc_get_sequence_ioctl(struct drm_device *dev, void *data,
 142                                struct drm_file *filp);
 143
 144int drm_crtc_queue_sequence_ioctl(struct drm_device *dev, void *data,
 145                                  struct drm_file *filp);
 146
 147/* drm_auth.c */
 148int drm_getmagic(struct drm_device *dev, void *data,
 149                 struct drm_file *file_priv);
 150int drm_authmagic(struct drm_device *dev, void *data,
 151                  struct drm_file *file_priv);
 152int drm_setmaster_ioctl(struct drm_device *dev, void *data,
 153                        struct drm_file *file_priv);
 154int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
 155                         struct drm_file *file_priv);
 156int drm_master_open(struct drm_file *file_priv);
 157void drm_master_release(struct drm_file *file_priv);
 158bool drm_master_internal_acquire(struct drm_device *dev);
 159void drm_master_internal_release(struct drm_device *dev);
 160
 161/* drm_sysfs.c */
 162extern struct class *drm_class;
 163
 164int drm_sysfs_init(void);
 165void drm_sysfs_destroy(void);
 166struct device *drm_sysfs_minor_alloc(struct drm_minor *minor);
 167int drm_sysfs_connector_add(struct drm_connector *connector);
 168void drm_sysfs_connector_remove(struct drm_connector *connector);
 169
 170void drm_sysfs_lease_event(struct drm_device *dev);
 171
 172/* drm_gem.c */
 173struct drm_gem_object;
 174int drm_gem_init(struct drm_device *dev);
 175int drm_gem_handle_create_tail(struct drm_file *file_priv,
 176                               struct drm_gem_object *obj,
 177                               u32 *handlep);
 178int drm_gem_close_ioctl(struct drm_device *dev, void *data,
 179                        struct drm_file *file_priv);
 180int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
 181                        struct drm_file *file_priv);
 182int drm_gem_open_ioctl(struct drm_device *dev, void *data,
 183                       struct drm_file *file_priv);
 184void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
 185void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
 186void drm_gem_print_info(struct drm_printer *p, unsigned int indent,
 187                        const struct drm_gem_object *obj);
 188
 189int drm_gem_pin(struct drm_gem_object *obj);
 190void drm_gem_unpin(struct drm_gem_object *obj);
 191int drm_gem_vmap(struct drm_gem_object *obj, struct dma_buf_map *map);
 192void 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)
 196int drm_debugfs_init(struct drm_minor *minor, int minor_id,
 197                     struct dentry *root);
 198void drm_debugfs_cleanup(struct drm_minor *minor);
 199void drm_debugfs_connector_add(struct drm_connector *connector);
 200void drm_debugfs_connector_remove(struct drm_connector *connector);
 201void drm_debugfs_crtc_add(struct drm_crtc *crtc);
 202void drm_debugfs_crtc_remove(struct drm_crtc *crtc);
 203void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc);
 204#else
 205static inline int drm_debugfs_init(struct drm_minor *minor, int minor_id,
 206                                   struct dentry *root)
 207{
 208        return 0;
 209}
 210
 211static inline void drm_debugfs_cleanup(struct drm_minor *minor)
 212{
 213}
 214
 215static inline void drm_debugfs_connector_add(struct drm_connector *connector)
 216{
 217}
 218static inline void drm_debugfs_connector_remove(struct drm_connector *connector)
 219{
 220}
 221
 222static inline void drm_debugfs_crtc_add(struct drm_crtc *crtc)
 223{
 224}
 225static inline void drm_debugfs_crtc_remove(struct drm_crtc *crtc)
 226{
 227}
 228
 229static inline void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc)
 230{
 231}
 232
 233#endif
 234
 235drm_ioctl_t drm_version;
 236drm_ioctl_t drm_getunique;
 237drm_ioctl_t drm_getclient;
 238
 239/* drm_syncobj.c */
 240void drm_syncobj_open(struct drm_file *file_private);
 241void drm_syncobj_release(struct drm_file *file_private);
 242int drm_syncobj_create_ioctl(struct drm_device *dev, void *data,
 243                             struct drm_file *file_private);
 244int drm_syncobj_destroy_ioctl(struct drm_device *dev, void *data,
 245                              struct drm_file *file_private);
 246int drm_syncobj_handle_to_fd_ioctl(struct drm_device *dev, void *data,
 247                                   struct drm_file *file_private);
 248int drm_syncobj_fd_to_handle_ioctl(struct drm_device *dev, void *data,
 249                                   struct drm_file *file_private);
 250int drm_syncobj_transfer_ioctl(struct drm_device *dev, void *data,
 251                               struct drm_file *file_private);
 252int drm_syncobj_wait_ioctl(struct drm_device *dev, void *data,
 253                           struct drm_file *file_private);
 254int drm_syncobj_timeline_wait_ioctl(struct drm_device *dev, void *data,
 255                                    struct drm_file *file_private);
 256int drm_syncobj_reset_ioctl(struct drm_device *dev, void *data,
 257                            struct drm_file *file_private);
 258int drm_syncobj_signal_ioctl(struct drm_device *dev, void *data,
 259                             struct drm_file *file_private);
 260int drm_syncobj_timeline_signal_ioctl(struct drm_device *dev, void *data,
 261                                      struct drm_file *file_private);
 262int drm_syncobj_query_ioctl(struct drm_device *dev, void *data,
 263                            struct drm_file *file_private);
 264
 265/* drm_framebuffer.c */
 266void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent,
 267                                const struct drm_framebuffer *fb);
 268void drm_framebuffer_debugfs_init(struct drm_minor *minor);
 269