diff options
Diffstat (limited to 'linux-core/drm_lock.c')
| -rw-r--r-- | linux-core/drm_lock.c | 40 |
1 files changed, 21 insertions, 19 deletions
diff --git a/linux-core/drm_lock.c b/linux-core/drm_lock.c index b8e4a5d9..08e063d8 100644 --- a/linux-core/drm_lock.c +++ b/linux-core/drm_lock.c @@ -52,6 +52,7 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv) { DECLARE_WAITQUEUE(entry, current); struct drm_lock *lock = data; + struct drm_master *master = file_priv->master; int ret = 0; ++file_priv->lock_count; @@ -64,26 +65,26 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv) DRM_DEBUG("%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n", lock->context, current->pid, - dev->lock.hw_lock->lock, lock->flags); + master->lock.hw_lock->lock, lock->flags); if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE)) if (lock->context < 0) return -EINVAL; - add_wait_queue(&dev->lock.lock_queue, &entry); - spin_lock(&dev->lock.spinlock); - dev->lock.user_waiters++; - spin_unlock(&dev->lock.spinlock); + add_wait_queue(&master->lock.lock_queue, &entry); + spin_lock(&master->lock.spinlock); + master->lock.user_waiters++; + spin_unlock(&master->lock.spinlock); for (;;) { __set_current_state(TASK_INTERRUPTIBLE); - if (!dev->lock.hw_lock) { + if (!master->lock.hw_lock) { /* Device has been unregistered */ ret = -EINTR; break; } - if (drm_lock_take(&dev->lock, lock->context)) { - dev->lock.file_priv = file_priv; - dev->lock.lock_time = jiffies; + if (drm_lock_take(&master->lock, lock->context)) { + master->lock.file_priv = file_priv; + master->lock.lock_time = jiffies; atomic_inc(&dev->counts[_DRM_STAT_LOCKS]); break; /* Got lock */ } @@ -95,11 +96,11 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv) break; } } - spin_lock(&dev->lock.spinlock); - dev->lock.user_waiters--; - spin_unlock(&dev->lock.spinlock); + spin_lock(&master->lock.spinlock); + master->lock.user_waiters--; + spin_unlock(&master->lock.spinlock); __set_current_state(TASK_RUNNING); - remove_wait_queue(&dev->lock.lock_queue, &entry); + remove_wait_queue(&master->lock.lock_queue, &entry); DRM_DEBUG("%d %s\n", lock->context, ret ? "interrupted" : "has lock"); @@ -111,7 +112,7 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv) sigaddset(&dev->sigmask, SIGTTIN); sigaddset(&dev->sigmask, SIGTTOU); dev->sigdata.context = lock->context; - dev->sigdata.lock = dev->lock.hw_lock; + dev->sigdata.lock = master->lock.hw_lock; block_all_signals(drm_notifier, &dev->sigdata, &dev->sigmask); if (dev->driver->dma_ready && (lock->flags & _DRM_LOCK_READY)) @@ -149,6 +150,7 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv) int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_lock *lock = data; + struct drm_master *master = file_priv->master; unsigned long irqflags; if (lock->context == DRM_KERNEL_CONTEXT) { @@ -175,7 +177,7 @@ int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv) if (dev->driver->kernel_context_switch_unlock) dev->driver->kernel_context_switch_unlock(dev); else { - if (drm_lock_free(&dev->lock,lock->context)) { + if (drm_lock_free(&master->lock,lock->context)) { /* FIXME: Should really bail out here. */ } } @@ -384,10 +386,10 @@ EXPORT_SYMBOL(drm_idlelock_release); int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv) { - - return (file_priv->lock_count && dev->lock.hw_lock && - _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) && - dev->lock.file_priv == file_priv); + struct drm_master *master = file_priv->master; + return (file_priv->lock_count && master->lock.hw_lock && + _DRM_LOCK_IS_HELD(master->lock.hw_lock->lock) && + master->lock.file_priv == file_priv); } EXPORT_SYMBOL(drm_i_have_hw_lock); |