[igt-dev] [PATCH igt] igt/gem_exec_capture: MI_STORE_DWORD requires EXEC_SECURE + DRM_MASTER on ctg/ilk

Chris Wilson chris at chris-wilson.co.uk
Sat Feb 10 21:43:38 UTC 2018


On ctg/ilk, for whatever reason, MI_STORE_DWORD is a privileged operation
so we must request a SECURE batch.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 tests/gem_exec_capture.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tests/gem_exec_capture.c b/tests/gem_exec_capture.c
index 1c7d1e7cb..3a1f70567 100644
--- a/tests/gem_exec_capture.c
+++ b/tests/gem_exec_capture.c
@@ -22,6 +22,7 @@
  */
 
 #include "igt.h"
+#include "igt_device.h"
 #include "igt_sysfs.h"
 
 #define LOCAL_OBJECT_CAPTURE (1 << 7)
@@ -141,6 +142,8 @@ static void __capture(int fd, int dir, unsigned ring, uint32_t target)
 	execbuf.buffers_ptr = (uintptr_t)obj;
 	execbuf.buffer_count = ARRAY_SIZE(obj);
 	execbuf.flags = ring;
+	if (gen > 3 && gen < 6)
+		execbuf.flags |= I915_EXEC_SECURE;
 	gem_execbuf(fd, &execbuf);
 
 	/* Wait for the request to start */
@@ -204,7 +207,14 @@ igt_main
 	igt_skip_on_simulation();
 
 	igt_fixture {
+		int gen;
+
 		fd = drm_open_driver(DRIVER_INTEL);
+
+		gen = intel_gen(intel_get_drm_devid(fd));
+		if (gen > 3 && gen < 6) /* ctg and ilk need secure batches */
+			igt_device_set_master(fd);
+
 		igt_require_gem(fd);
 		gem_require_mmap_wc(fd);
 		igt_require(has_capture(fd));
-- 
2.16.1



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