Cross Reference: /src/sys/external/bsd/drm2/dist/drm/vmwgfx/ttm

Lines Matching defs:lock
35  * of the DRM heavyweight hardware lock.
36  * The lock is a read-write lock. Taking it in read mode and write mode
41  * It's allowed to leave kernel space with the vt lock held.
42  * If a user-space process dies while having the vt-lock,
43  * it will be released during the file descriptor release. The vt lock
44  * excludes write lock and read lock.
46  * The suspend mode is used to lock out all TTM users when preparing for
66  * @base: ttm base object used solely to release the lock if the client
67  * holding the lock dies.
68  * @queue: Queue for processes waiting for lock change-of-status.
69  * @lock: Spinlock protecting some lock members.
70  * @rw: Read-write lock counter. Protected by @lock.
71  * @flags: Lock state. Protected by @lock.
77 	spinlock_t lock;
86  * @lock: Pointer to a struct ttm_lock
87  * Initializes the lock.
89 extern void ttm_lock_init(struct ttm_lock *lock);
94  * @lock: Pointer to a struct ttm_lock
96  * Releases a read lock.
98 extern void ttm_read_unlock(struct ttm_lock *lock);
103  * @lock: Pointer to a struct ttm_lock
104  * @interruptible: Interruptible sleeping while waiting for a lock.
106  * Takes the lock in read mode.
110 extern int ttm_read_lock(struct ttm_lock *lock, bool interruptible);
115  * @lock: Pointer to a struct ttm_lock
116  * @interruptible: Interruptible sleeping while waiting for a lock.
118  * Tries to take the lock in read mode. If the lock is already held
119  * in write mode, the function will return -EBUSY. If the lock is held
124  * -EBUSY The lock was already held in write mode.
127 extern int ttm_read_trylock(struct ttm_lock *lock, bool interruptible);
132  * @lock: Pointer to a struct ttm_lock
134  * Releases a write lock.
136 extern void ttm_write_unlock(struct ttm_lock *lock);
141  * @lock: Pointer to a struct ttm_lock
142  * @interruptible: Interruptible sleeping while waiting for a lock.
144  * Takes the lock in write mode.
148 extern int ttm_write_lock(struct ttm_lock *lock, bool interruptible);
153  * @lock: Pointer to a struct ttm_lock
155  * Downgrades a write lock to a read lock.
157 extern void ttm_lock_downgrade(struct ttm_lock *lock);
162  * @lock: Pointer to a struct ttm_lock
164  * Takes the lock in suspend mode. Excludes read and write mode.
166 extern void ttm_suspend_lock(struct ttm_lock *lock);
171  * @lock: Pointer to a struct ttm_lock
173  * Releases a suspend lock
175 extern void ttm_suspend_unlock(struct ttm_lock *lock);
180  * @lock: Pointer to a struct ttm_lock
181  * @interruptible: Interruptible sleeping while waiting for a lock.
182  * @tfile: Pointer to a struct ttm_object_file to register the lock with.
184  * Takes the lock in vt mode.
189 extern int ttm_vt_lock(struct ttm_lock *lock, bool interruptible,
195  * @lock: Pointer to a struct ttm_lock
197  * Releases a vt lock.
199  * -EINVAL If the lock was not held.
201 extern int ttm_vt_unlock(struct ttm_lock *lock);
206  * @lock: Pointer to a struct ttm_lock
208  * Releases a write lock.
210 extern void ttm_write_unlock(struct ttm_lock *lock);
215  * @lock: Pointer to a struct ttm_lock
216  * @interruptible: Interruptible sleeping while waiting for a lock.
218  * Takes the lock in write mode.
222 extern int ttm_write_lock(struct ttm_lock *lock, bool interruptible);