[igt-dev] [PATCH igt] igt/gem_softpin: Only expect EINVAL for color-overlaps for user objects

[Chris Wilson]

If the specified object can not fit into the GTT due to overlap with a
neighbouring pinned object (not part of the execobjects[]), we expect to
fail with ENOSPC (as we cannot evict, rather than EINVAL for the user
error in a badly constructed execobjects[]). To prevent the tests
causing overlap with other external objects expand the test hole by a
page on either side.

(Setting up the system to deliberately hit ENOSPC is trickier as for
example it requires pinned an object into the scanout with enough free
space on either side to test.)

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 tests/gem_softpin.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/gem_softpin.c b/tests/gem_softpin.c
index 99388599..23f93623 100644
--- a/tests/gem_softpin.c
+++ b/tests/gem_softpin.c
@@ -302,11 +302,11 @@ static void test_evict_snoop(int fd)
 
 	/* Find a hole */
 	memset(object, 0, sizeof(object));
-	object[0].handle = gem_create(fd, 3*4096);
+	object[0].handle = gem_create(fd, 5*4096);
 	gem_write(fd, object[0].handle, 0, &bbe, sizeof(bbe));
 	gem_execbuf(fd, &execbuf);
 	gem_close(fd, object[0].handle);
-	hole = object[0].offset;
+	hole = object[0].offset + 4096;
 
 	/* Create a snoop + uncached pair */
 	object[0].handle = gem_create(fd, 4096);
-- 
2.16.1