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authorBen Skeggs <bskeggs@redhat.com>2012-03-21 13:51:03 +1000
committerBen Skeggs <bskeggs@redhat.com>2012-03-22 17:17:36 +1000
commitb08abd4e9a11d637d3c2ff52b2ebbc1b3f686d06 (patch)
treeb965122d55743e4094cccdb1c3884299693ee7b7 /drivers/gpu/drm/nouveau
parentb5b2e5988bd18a2f6e3f192adf7439599de00d3f (diff)
drm/nouveau: move fence sequence check to start of loop
I want to be able to use REF_CNT from other places in the kernel without pushing a fence object onto the list of emitted fences. The current code makes an assumption that every time the acked sequence is bumped that there's at least one fence on the list that'll be signalled. This will no longer be true in the near future. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_fence.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c
index f676ecd3fd3c..c1dc20f6cb85 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fence.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fence.c
@@ -93,18 +93,17 @@ nouveau_fence_update(struct nouveau_channel *chan)
}
list_for_each_entry_safe(fence, tmp, &chan->fence.pending, entry) {
- sequence = fence->sequence;
+ if (fence->sequence > chan->fence.sequence_ack)
+ break;
+
fence->signalled = true;
list_del(&fence->entry);
-
- if (unlikely(fence->work))
+ if (fence->work)
fence->work(fence->priv, true);
kref_put(&fence->refcount, nouveau_fence_del);
-
- if (sequence == chan->fence.sequence_ack)
- break;
}
+
out:
spin_unlock(&chan->fence.lock);
}