From 5dec88cdaab6660218b8e49a191ae2772c5a41b3 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Tue, 12 Apr 2011 18:51:39 +1000
Subject: [PATCH] --- yaml --- r: 250665 b: refs/heads/master c:
 7a5c23de36002d611609650e49ef0ebd46f5c141 h: refs/heads/master i:   250663:
 bf624bfe9ae44ffec7fdca06242a068bd1806619 v: v3

---
 [refs]                                    |  2 +-
 trunk/drivers/gpu/drm/nouveau/nvc0_fifo.c | 16 ++++++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index e3435b87e293..b3252da26bd8 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: fe799114e2f0de37c3ddf900d15fa5e85936deba
+refs/heads/master: 7a5c23de36002d611609650e49ef0ebd46f5c141
diff --git a/trunk/drivers/gpu/drm/nouveau/nvc0_fifo.c b/trunk/drivers/gpu/drm/nouveau/nvc0_fifo.c
index 55a4245c1a67..2bd0511511e4 100644
--- a/trunk/drivers/gpu/drm/nouveau/nvc0_fifo.c
+++ b/trunk/drivers/gpu/drm/nouveau/nvc0_fifo.c
@@ -240,6 +240,22 @@ nvc0_fifo_load_context(struct nouveau_channel *chan)
 int
 nvc0_fifo_unload_context(struct drm_device *dev)
 {
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	int i;
+
+	for (i = 0; i < 128; i++) {
+		if (!(nv_rd32(dev, 0x003004 + (i * 4)) & 1))
+			continue;
+
+		nv_mask(dev, 0x003004 + (i * 4), 0x00000001, 0x00000000);
+		nv_wr32(dev, 0x002634, i);
+		if (!nv_wait(dev, 0x002634, 0xffffffff, i)) {
+			NV_INFO(dev, "PFIFO: kick ch %d failed: 0x%08x\n",
+				i, nv_rd32(dev, 0x002634));
+			return -EBUSY;
+		}
+	}
+
 	return 0;
 }