[igt-dev] [PATCH igt 1/2] lib: Acquire master for pollable spinbatch on gen4/5

[Chris Wilson]

gen4/5 require a DRM_MASTER to use MI_STORE_DW, make it so.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
---
 lib/igt_dummyload.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/igt_dummyload.c b/lib/igt_dummyload.c
index 98ab7ac2..ba917ba5 100644
--- a/lib/igt_dummyload.c
+++ b/lib/igt_dummyload.c
@@ -31,6 +31,7 @@
 
 #include "igt_core.h"
 #include "drmtest.h"
+#include "igt_device.h"
 #include "igt_dummyload.h"
 #include "igt_gt.h"
 #include "intel_chipset.h"
@@ -144,8 +145,10 @@ emit_recursive_batch(igt_spin_t *spin, int fd, uint32_t ctx, unsigned engine,
 
 		igt_assert(!dep);
 
-		if (gen == 4 || gen == 5)
+		if (gen == 4 || gen == 5) {
 			execbuf->flags |= I915_EXEC_SECURE;
+			igt_require(__igt_device_set_master(fd) == 0);
+		}
 
 		spin->poll_handle = gem_create(fd, 4096);
 
-- 
2.16.3