From 574ab948af15c8deaf5afa11bd79b2ea2d9c202d Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 7 Jan 2015 14:08:05 +0000
Subject: [PATCH] sna: Add mmap(wc) handling to has_coherent_ptr assertion

Extend the debuging sanity checks to also cover WC mappings.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 src/sna/sna_accel.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/sna/sna_accel.c b/src/sna/sna_accel.c
index e1a808fb..75c17f92 100644
--- a/src/sna/sna_accel.c
+++ b/src/sna/sna_accel.c
@@ -1557,6 +1557,11 @@ static inline bool has_coherent_ptr(struct sna *sna, struct sna_pixmap *priv, un
 		return true;
 	}
 
+	if (priv->pixmap->devPrivate.ptr == MAP(priv->gpu_bo->map__wc)) {
+		assert(priv->mapped == MAPPED_GTT);
+		return true;
+	}
+
 	return false;
 }