diff options
Diffstat (limited to 'drivers/gpu/drm/drm_lock.c')
| -rw-r--r-- | drivers/gpu/drm/drm_lock.c | 36 |
1 files changed, 20 insertions, 16 deletions
diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c index e26b59e385ff..f861361a635e 100644 --- a/drivers/gpu/drm/drm_lock.c +++ b/drivers/gpu/drm/drm_lock.c @@ -36,6 +36,7 @@ #include <linux/export.h> #include <drm/drmP.h> #include "drm_legacy.h" +#include "drm_internal.h" static int drm_notifier(void *priv); @@ -52,7 +53,8 @@ static int drm_lock_take(struct drm_lock_data *lock_data, unsigned int context); * * Add the current task to the lock wait queue, and attempt to take to lock. */ -int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv) +int drm_legacy_lock(struct drm_device *dev, void *data, + struct drm_file *file_priv) { DECLARE_WAITQUEUE(entry, current); struct drm_lock *lock = data; @@ -120,7 +122,7 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv) sigaddset(&dev->sigmask, SIGTTOU); dev->sigdata.context = lock->context; dev->sigdata.lock = master->lock.hw_lock; - block_all_signals(drm_notifier, &dev->sigdata, &dev->sigmask); + block_all_signals(drm_notifier, dev, &dev->sigmask); } if (dev->driver->dma_quiescent && (lock->flags & _DRM_LOCK_QUIESCENT)) @@ -146,7 +148,7 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv) * * Transfer and free the lock. */ -int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv) +int drm_legacy_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_lock *lock = data; struct drm_master *master = file_priv->master; @@ -157,7 +159,7 @@ int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv) return -EINVAL; } - if (drm_lock_free(&master->lock, lock->context)) { + if (drm_legacy_lock_free(&master->lock, lock->context)) { /* FIXME: Should really bail out here. */ } @@ -250,7 +252,7 @@ static int drm_lock_transfer(struct drm_lock_data *lock_data, * Marks the lock as not held, via the \p cmpxchg instruction. Wakes any task * waiting on the lock queue. */ -int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context) +int drm_legacy_lock_free(struct drm_lock_data *lock_data, unsigned int context) { unsigned int old, new, prev; volatile unsigned int *lock = &lock_data->hw_lock->lock; @@ -286,26 +288,27 @@ int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context) * If the lock is not held, then let the signal proceed as usual. If the lock * is held, then set the contended flag and keep the signal blocked. * - * \param priv pointer to a drm_sigdata structure. + * \param priv pointer to a drm_device structure. * \return one if the signal should be delivered normally, or zero if the * signal should be blocked. */ static int drm_notifier(void *priv) { - struct drm_sigdata *s = (struct drm_sigdata *) priv; + struct drm_device *dev = priv; + struct drm_hw_lock *lock = dev->sigdata.lock; unsigned int old, new, prev; /* Allow signal delivery if lock isn't held */ - if (!s->lock || !_DRM_LOCK_IS_HELD(s->lock->lock) - || _DRM_LOCKING_CONTEXT(s->lock->lock) != s->context) + if (!lock || !_DRM_LOCK_IS_HELD(lock->lock) + || _DRM_LOCKING_CONTEXT(lock->lock) != dev->sigdata.context) return 1; /* Otherwise, set flag to force call to drmUnlock */ do { - old = s->lock->lock; + old = lock->lock; new = old | _DRM_LOCK_CONT; - prev = cmpxchg(&s->lock->lock, old, new); + prev = cmpxchg(&lock->lock, old, new); } while (prev != old); return 0; } @@ -323,7 +326,7 @@ static int drm_notifier(void *priv) * having to worry about starvation. */ -void drm_idlelock_take(struct drm_lock_data *lock_data) +void drm_legacy_idlelock_take(struct drm_lock_data *lock_data) { int ret; @@ -340,9 +343,9 @@ void drm_idlelock_take(struct drm_lock_data *lock_data) } spin_unlock_bh(&lock_data->spinlock); } -EXPORT_SYMBOL(drm_idlelock_take); +EXPORT_SYMBOL(drm_legacy_idlelock_take); -void drm_idlelock_release(struct drm_lock_data *lock_data) +void drm_legacy_idlelock_release(struct drm_lock_data *lock_data) { unsigned int old, prev; volatile unsigned int *lock = &lock_data->hw_lock->lock; @@ -360,9 +363,10 @@ void drm_idlelock_release(struct drm_lock_data *lock_data) } spin_unlock_bh(&lock_data->spinlock); } -EXPORT_SYMBOL(drm_idlelock_release); +EXPORT_SYMBOL(drm_legacy_idlelock_release); -int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv) +int drm_legacy_i_have_hw_lock(struct drm_device *dev, + struct drm_file *file_priv) { struct drm_master *master = file_priv->master; return (file_priv->lock_count && master->lock.hw_lock && |