Merge remote-tracking branch 'airlied/drm-next' into topic/vblank-rework

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / drm_lock.c

diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c
index f6452682141b5fd25773153233fb97983dafbc40..727b032292b474857fc8640a3478a445f8ade710 100644 (file)
--- a/drivers/gpu/drm/drm_lock.c
+++ b/drivers/gpu/drm/drm_lock.c
@@ -35,6 +35,7 @@
 
 #include <linux/export.h>
 #include <drm/drmP.h>
+#include "drm_legacy.h"
 
 static int drm_notifier(void *priv);
 
@@ -51,7 +52,8 @@ 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;
@@ -119,7 +121,7 @@ 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))
@@ -145,7 +147,7 @@ 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;
@@ -156,7 +158,7 @@ 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. */
        }
 
@@ -249,7 +251,7 @@ 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;
@@ -285,26 +287,27 @@ 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;
 }
@@ -322,7 +325,7 @@ 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;
 
@@ -339,9 +342,9 @@ 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;
@@ -359,9 +362,10 @@ 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 &&