diff options
| author | Mark Kettenis <kettenis@cvs.openbsd.org> | 2013-11-28 20:32:21 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@cvs.openbsd.org> | 2013-11-28 20:32:21 +0000 |
| commit | 9010e158dcc1cc999306e003bc9dc104cacedddf (patch) | |
| tree | 1697262352e67e83263411e2a111a22ec39dfe8e /sys/dev | |
| parent | 9aebe43fa01d179399c2897cca2e774b6ae27af0 (diff) | |
Add short-circuit code to __wait_seqno() that's also present in Linux.
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/pci/drm/i915/i915_gem.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/dev/pci/drm/i915/i915_gem.c b/sys/dev/pci/drm/i915/i915_gem.c index cc130b42a4f..18c6c41858d 100644 --- a/sys/dev/pci/drm/i915/i915_gem.c +++ b/sys/dev/pci/drm/i915/i915_gem.c @@ -1,4 +1,4 @@ -/* $OpenBSD: i915_gem.c,v 1.47 2013/11/27 20:13:30 kettenis Exp $ */ +/* $OpenBSD: i915_gem.c,v 1.48 2013/11/28 20:32:20 kettenis Exp $ */ /* * Copyright (c) 2008-2009 Owain G. Ainsworth <oga@openbsd.org> * @@ -1027,6 +1027,9 @@ static int __wait_seqno(struct intel_ring_buffer *ring, u32 seqno, drm_i915_private_t *dev_priv = dev->dev_private; int ret = 0; + if (i915_seqno_passed(ring->get_seqno(ring, true), seqno)) + return 0; + mtx_enter(&dev_priv->irq_lock); if (!i915_seqno_passed(ring->get_seqno(ring, true), seqno)) { ring->irq_get(ring); |