Merge branch 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6

* 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (204 commits)
  agp: intel-agp: do not use PCI resources before pci_enable_device()
  agp: efficeon-agp: do not use PCI resources before pci_enable_device()
  drm: kill BKL from common code
  drm/kms: Simplify setup of the initial I2C encoder config.
  drm,io-mapping: Specify slot to use for atomic mappings
  drm/radeon/kms: only expose underscan on avivo chips
  drm/radeon: add new pci ids
  drm: Cleanup after failing to create master->unique and dev->name
  drm/radeon: tone down overchatty acpi debug messages.
  drm/radeon/kms: enable underscan option for digital connectors
  drm/radeon/kms: fix calculation of h/v scaling factors
  drm/radeon/kms/igp: sideport is AMD only
  drm/radeon/kms: handle the case of no active displays properly in the bandwidth code
  drm: move ttm global code to core drm
  drm/i915: Clear the Ironlake dithering flags when the pipe doesn't want it.
  drm/radeon/kms: make sure HPD is set to NONE on analog-only connectors
  drm/radeon/kms: make sure rio_mem is valid before unmapping it
  drm/agp/i915: trim stolen space to 32M
  drm/i915: Unset cursor if out-of-bounds upon mode change (v4)
  drm/i915: Unreference object not handle on creation
  ...

1 files changed, 8 insertions, 27 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c
index faddf53ff9ed..6b208ffafa8d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fence.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fence.c
@@ -67,12 +67,13 @@ nouveau_fence_update(struct nouveau_channel *chan)
 	if (USE_REFCNT)
 		sequence = nvchan_rd32(chan, 0x48);
 	else
-		sequence = chan->fence.last_sequence_irq;
+		sequence = atomic_read(&chan->fence.last_sequence_irq);
 
 	if (chan->fence.sequence_ack == sequence)
 		return;
 	chan->fence.sequence_ack = sequence;
 
+	spin_lock(&chan->fence.lock);
 	list_for_each_safe(entry, tmp, &chan->fence.pending) {
 		fence = list_entry(entry, struct nouveau_fence, entry);
 
@@ -84,6 +85,7 @@ nouveau_fence_update(struct nouveau_channel *chan)
 		if (sequence == chan->fence.sequence_ack)
 			break;
 	}
+	spin_unlock(&chan->fence.lock);
 }
 
 int
@@ -119,7 +121,6 @@ nouveau_fence_emit(struct nouveau_fence *fence)
 {
 	struct drm_nouveau_private *dev_priv = fence->channel->dev->dev_private;
 	struct nouveau_channel *chan = fence->channel;
-	unsigned long flags;
 	int ret;
 
 	ret = RING_SPACE(chan, 2);
@@ -127,9 +128,7 @@ nouveau_fence_emit(struct nouveau_fence *fence)
 		return ret;
 
 	if (unlikely(chan->fence.sequence == chan->fence.sequence_ack - 1)) {
-		spin_lock_irqsave(&chan->fence.lock, flags);
 		nouveau_fence_update(chan);
-		spin_unlock_irqrestore(&chan->fence.lock, flags);
 
 		BUG_ON(chan->fence.sequence ==
 		       chan->fence.sequence_ack - 1);
@@ -138,9 +137,9 @@ nouveau_fence_emit(struct nouveau_fence *fence)
 	fence->sequence = ++chan->fence.sequence;
 
 	kref_get(&fence->refcount);
-	spin_lock_irqsave(&chan->fence.lock, flags);
+	spin_lock(&chan->fence.lock);
 	list_add_tail(&fence->entry, &chan->fence.pending);
-	spin_unlock_irqrestore(&chan->fence.lock, flags);
+	spin_unlock(&chan->fence.lock);
 
 	BEGIN_RING(chan, NvSubSw, USE_REFCNT ? 0x0050 : 0x0150, 1);
 	OUT_RING(chan, fence->sequence);
@@ -173,14 +172,11 @@ nouveau_fence_signalled(void *sync_obj, void *sync_arg)
 {
 	struct nouveau_fence *fence = nouveau_fence(sync_obj);
 	struct nouveau_channel *chan = fence->channel;
-	unsigned long flags;
 
 	if (fence->signalled)
 		return true;
 
-	spin_lock_irqsave(&chan->fence.lock, flags);
 	nouveau_fence_update(chan);
-	spin_unlock_irqrestore(&chan->fence.lock, flags);
 	return fence->signalled;
 }
 
@@ -190,8 +186,6 @@ nouveau_fence_wait(void *sync_obj, void *sync_arg, bool lazy, bool intr)
 	unsigned long timeout = jiffies + (3 * DRM_HZ);
 	int ret = 0;
 
-	__set_current_state(intr ? TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE);
-
 	while (1) {
 		if (nouveau_fence_signalled(sync_obj, sync_arg))
 			break;
@@ -201,6 +195,8 @@ nouveau_fence_wait(void *sync_obj, void *sync_arg, bool lazy, bool intr)
 			break;
 		}
 
+		__set_current_state(intr ? TASK_INTERRUPTIBLE
+			: TASK_UNINTERRUPTIBLE);
 		if (lazy)
 			schedule_timeout(1);
 
@@ -221,27 +217,12 @@ nouveau_fence_flush(void *sync_obj, void *sync_arg)
 	return 0;
 }
 
-void
-nouveau_fence_handler(struct drm_device *dev, int channel)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_channel *chan = NULL;
-
-	if (channel >= 0 && channel < dev_priv->engine.fifo.channels)
-		chan = dev_priv->fifos[channel];
-
-	if (chan) {
-		spin_lock_irq(&chan->fence.lock);
-		nouveau_fence_update(chan);
-		spin_unlock_irq(&chan->fence.lock);
-	}
-}
-
 int
 nouveau_fence_init(struct nouveau_channel *chan)
 {
 	INIT_LIST_HEAD(&chan->fence.pending);
 	spin_lock_init(&chan->fence.lock);
+	atomic_set(&chan->fence.last_sequence_irq, 0);
 	return 0;
 }