From 8d1d3c6e6102ff20fbff74ec6b3b2e94ee757015 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu, 7 Feb 2013 14:47:07 +0000
Subject: [PATCH] sna: Fixup an invalid assertion

We may choose to operate inplace on a buffer last used by the CPU if we
are discarding all the existing damage.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 src/sna/sna_accel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sna/sna_accel.c b/src/sna/sna_accel.c
index 87e0c0c0..7c8a3609 100644
--- a/src/sna/sna_accel.c
+++ b/src/sna/sna_accel.c
@@ -1581,7 +1581,7 @@ skip_inplace_map:
 		kgem_bo_submit(&sna->kgem, priv->gpu_bo);
 
 		DBG(("%s: try to operate inplace (GTT)\n", __FUNCTION__));
-		assert(priv->cpu == false);
+		assert((flags & MOVE_READ) == 0 || priv->cpu == false);
 
 		pixmap->devPrivate.ptr = kgem_bo_map(&sna->kgem, priv->gpu_bo);
 		priv->mapped = pixmap->devPrivate.ptr != NULL;