From 3f4da671b0a570de8734cc668d8e8975c2fdbd90 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 25 Jun 2014 08:01:57 +0100
Subject: [PATCH] sna: Disable userptr for bdw

Something fishy is afoot. But let's kill this particularly worrisome
regression so that we can do a full round of testing.

References: https://bugs.freedesktop.org/show_bug.cgi?id=79053
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 src/sna/kgem.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/sna/kgem.c b/src/sna/kgem.c
index dfaf878e..d17647d3 100644
--- a/src/sna/kgem.c
+++ b/src/sna/kgem.c
@@ -1063,6 +1063,9 @@ static bool test_has_userptr(struct kgem *kgem)
 	if (kgem->gen == 040)
 		return false;
 
+	if (kgem->gem >= 0100)
+		return false; /* FIXME https://bugs.freedesktop.org/show_bug.cgi?id=79053 */
+
 	if (posix_memalign(&ptr, PAGE_SIZE, PAGE_SIZE))
 		return false;