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 drm_connector;
  37struct drm_crtc;
  38struct drm_framebuffer;
  39struct drm_gem_object;
  40struct drm_master;
  41struct drm_minor;
  42struct drm_prime_file_private;
  43struct drm_printer;
  44struct drm_vblank_crtc;
  45
  46/* drm_file.c */
  47extern struct mutex drm_global_mutex;
  48bool drm_dev_needs_global_mutex(struct drm_device *dev);
  49struct drm_file *drm_file_alloc(struct drm_minor *minor);
  50void drm_file_free(struct drm_file *file);
  51void drm_lastclose(struct drm_device *dev);
  52
  53#ifdef CONFIG_PCI
  54
  55/* drm_pci.c */
  56int drm_irq_by_busid(struct drm_device *dev, void *data,
  57                     struct drm_file *file_priv);
  58void drm_pci_agp_destroy(struct drm_device *dev);
  59int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master);
  60
  61#else
  62
  63static inline int drm_irq_by_busid(struct drm_device *dev, void *data,
  64                                   struct drm_file *file_priv)
  65{
  66        return -EINVAL;
  67}
  68
  69static inline void drm_pci_agp_destroy(struct drm_device *dev)
  70{
  71}
  72
  73static inline int drm_pci_set_busid(struct drm_device *dev,
  74                                    struct drm_master *master)
  75{
  76        return -EINVAL;
  77}
  78
  79#endif
  80
  81/* drm_prime.c */
  82int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
  83                                 struct drm_file *file_priv);
  84int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
  85                                 struct drm_file *file_priv);
  86
  87void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
  88void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
  89void drm_prime_remove_buf_handle_locked(struct drm_prime_file_private *prime_fpriv,
  90                                        struct dma_buf *dma_buf);
  91
  92/* drm_drv.c */
  93struct drm_minor *drm_minor_acquire(unsigned int minor_id);
  94void drm_minor_release(struct drm_minor *minor);
  95
  96/* drm_managed.c */
  97void drm_managed_release(struct drm_device *dev);
  98void drmm_add_final_kfree(struct drm_device *dev, void *container);
  99
 100/* drm_vblank.c */
 101static inline bool drm_vblank_passed(u64 seq, u64 ref)
 102{
 103        return (seq - ref) <= (1 << 23);
 104}
 105
 106void drm_vblank_disable_and_save(struct drm_device *dev, unsigned int pipe);
 107int drm_vblank_get(struct drm_device *dev, unsigned int pipe);
 108void drm_vblank_put(struct drm_device *dev, unsigned int pipe);
 109u64 drm_vblank_count(struct drm_device *dev, unsigned int pipe);
 110
 111/* drm_vblank_work.c */
 112static inline void drm_vblank_flush_worker(struct drm_vblank_crtc *vblank)
 113{
 114        kthread_flush_worker(vblank->worker);
 115}
 116
 117static inline void drm_vblank_destroy_worker(struct drm_vblank_crtc *vblank)
 118{
 119        kthread_destroy_worker(vblank->worker);
 120}
 121
 122int drm_vblank_worker_init(struct drm_vblank_crtc *vblank);
 123void drm_vblank_cancel_pending_works(struct drm_vblank_crtc *vblank);
 124void drm_handle_vblank_works(struct drm_vblank_crtc *vblank);
 125
 126/* IOCTLS */
 127int drm_wait_vblank_ioctl(struct drm_device *dev, void *data,
 128                          struct drm_file *filp);
 129int drm_legacy_modeset_ctl_ioctl(struct drm_device *dev, void *data,
 130                                 struct drm_file *file_priv);
 131
 132/* drm_irq.c */
 133
 134/* IOCTLS */
 135#if IS_ENABLED(CONFIG_DRM_LEGACY)
 136int drm_legacy_irq_control(struct drm_device *dev, void *data,
 137                           struct drm_file *file_priv);
 138#endif
 139
 140int drm_crtc_get_sequence_ioctl(struct drm_device *dev, void *data,
 141                                struct drm_file *filp);
 142
 143int drm_crtc_queue_sequence_ioctl(struct drm_device *dev, void *data,
 144                                  struct drm_file *filp);
 145
 146/* drm_auth.c */
 147int drm_getmagic(struct drm_device *dev, void *data,
 148                 struct drm_file *file_priv);
 149int drm_authmagic(struct drm_device *dev, void *data,
 150                  struct drm_file *file_priv);
 151int drm_setmaster_ioctl(struct drm_device *dev, void *data,
 152                        struct drm_file *file_priv);
 153int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
 154                         struct drm_file *file_priv);
 155int drm_master_open(struct drm_file *file_priv);
 156void drm_master_release(struct drm_file *file_priv);
 157bool drm_master_internal_acquire(struct drm_device *dev);
 158void drm_master_internal_release(struct drm_device *dev);
 159
 160/* drm_sysfs.c */
 161extern struct class *drm_class;
 162
 163int drm_sysfs_init(void);
 164void drm_sysfs_destroy(void);
 165struct device *drm_sysfs_minor_alloc(struct drm_minor *minor);
 166int drm_sysfs_connector_add(struct drm_connector *connector);
 167void drm_sysfs_connector_remove(struct drm_connector *connector);
 168
 169void drm_sysfs_lease_event(struct drm_device *dev);
 170
 171/* drm_gem.c */
 172struct drm_gem_object;
 173int drm_gem_init(struct drm_device *dev);
 174int drm_gem_handle_create_tail(struct drm_file *file_priv,
 175                               struct drm_gem_object *obj,
 176                               u32 *handlep);
 177int drm_gem_close_ioctl(struct drm_device *dev, void *data,
 178                        struct drm_file *file_priv);
 179int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
 180                        struct drm_file *file_priv);
 181int drm_gem_open_ioctl(struct drm_device *dev, void *data,
 182                       struct drm_file *file_priv);
 183void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
 184void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
 185void drm_gem_print_info(struct drm_printer *p, unsigned int indent,
 186                        const struct drm_gem_object *obj);
 187
 188int drm_gem_pin(struct drm_gem_object *obj);
 189void drm_gem_unpin(struct drm_gem_object *obj);
 190void *drm_gem_vmap(struct drm_gem_object *obj);
 191void drm_gem_vunmap(struct drm_gem_object *obj, void *vaddr);
 192
 193/* drm_debugfs.c drm_debugfs_crc.c */
 194#if defined(CONFIG_DEBUG_FS)
 195int drm_debugfs_init(struct drm_minor *minor, int minor_id,
 196                     struct dentry *root);
 197void drm_debugfs_cleanup(struct drm_minor *minor);
 198void drm_debugfs_connector_add(struct drm_connector *connector);
 199void drm_debugfs_connector_remove(struct drm_connector *connector);
 200void drm_debugfs_crtc_add(struct drm_crtc *crtc);
 201void drm_debugfs_crtc_remove(struct drm_crtc *crtc);
 202void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc);
 203#else
 204static inline int drm_debugfs_init(struct drm_minor *minor, int minor_id,
 205                                   struct dentry *root)
 206{
 207        return 0;
 208}
 209
 210static inline void drm_debugfs_cleanup(struct drm_minor *minor)
 211{
 212}
 213
 214static inline void drm_debugfs_connector_add(struct drm_connector *connector)
 215{
 216}
 217static inline void drm_debugfs_connector_remove(struct drm_connector *connector)
 218{
 219}
 220
 221static inline void drm_debugfs_crtc_add(struct drm_crtc *crtc)
 222{
 223}
 224static inline void drm_debugfs_crtc_remove(struct drm_crtc *crtc)
 225{
 226}
 227
 228static inline void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc)
 229{
 230}
 231
 232#endif
 233
 234drm_ioctl_t drm_version;
 235drm_ioctl_t drm_getunique;
 236drm_ioctl_t drm_getclient;
 237
 238/* drm_syncobj.c */
 239void drm_syncobj_open(struct drm_file *file_private);
 240void drm_syncobj_release(struct drm_file *file_private);
 241int drm_syncobj_create_ioctl(struct drm_device *dev, void *data,
 242                             struct drm_file *file_private);
 243int drm_syncobj_destroy_ioctl(struct drm_device *dev, void *data,
 244                              struct drm_file *file_private);
 245int drm_syncobj_handle_to_fd_ioctl(struct drm_device *dev, void *data,
 246                                   struct drm_file *file_private);
 247int drm_syncobj_fd_to_handle_ioctl(struct drm_device *dev, void *data,
 248                                   struct drm_file *file_private);
 249int drm_syncobj_transfer_ioctl(struct drm_device *dev, void *data,
 250                               struct drm_file *file_private);
 251int drm_syncobj_wait_ioctl(struct drm_device *dev, void *data,
 252                           struct drm_file *file_private);
 253int drm_syncobj_timeline_wait_ioctl(struct drm_device *dev, void *data,
 254                                    struct drm_file *file_private);
 255int drm_syncobj_reset_ioctl(struct drm_device *dev, void *data,
 256                            struct drm_file *file_private);
 257int drm_syncobj_signal_ioctl(struct drm_device *dev, void *data,
 258                             struct drm_file *file_private);
 259int drm_syncobj_timeline_signal_ioctl(struct drm_device *dev, void *data,
 260                                      struct drm_file *file_private);
 261int drm_syncobj_query_ioctl(struct drm_device *dev, void *data,
 262                            struct drm_file *file_private);
 263
 264/* drm_framebuffer.c */
 265void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent,
 266                                const struct drm_framebuffer *fb);
 267void drm_framebuffer_debugfs_init(struct drm_minor *minor);
 268