[Intel-gfx] [PATCH igt] igt/gem_exec_nop: Headless requires DRM_MASTER for modesetting

[Chris Wilson]

Since the headless subtest wants to compare execution latency of a
headless mode vs a single head, it needs to be able to do a modeset and
ergo it requires DRM_MASTER.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 tests/gem_exec_nop.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tests/gem_exec_nop.c b/tests/gem_exec_nop.c
index fdb1413e..f6289874 100644
--- a/tests/gem_exec_nop.c
+++ b/tests/gem_exec_nop.c
@@ -669,8 +669,11 @@ igt_main
 		sequential(device, handle, FORKED | CONTEXT, 150);
 
 #if !defined(ANDROID) || ANDROID_HAS_CAIRO
-	igt_subtest("headless")
+	igt_subtest("headless") {
+		/* Requires master for changing display modes */
+		igt_require(drmSetMaster(fd) == 0);
 		headless(device, handle);
+	}
 #endif
 
 	igt_fixture {
-- 
2.14.1