[igt-dev] [PATCH i-g-t 2/3] tests/i915/i915_suspend: Add system-suspend-without-i915 subtest

[Riana Tauro]

From: "Tauro, Riana" <riana.tauro at intel.com>

Add a new test system-suspend-without-i915 to exercise suspend/resume cycle
without i915 module to know the system wide health of suspend/resume feature.
This test will be part of CI fast-feedback test list.

Signed-off-by: Tauro, Riana <riana.tauro at intel.com>
---
 tests/i915/i915_suspend.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/tests/i915/i915_suspend.c b/tests/i915/i915_suspend.c
index da27ce09..4660d7a7 100644
--- a/tests/i915/i915_suspend.c
+++ b/tests/i915/i915_suspend.c
@@ -41,6 +41,7 @@
 #include "i915/gem.h"
 #include "i915/gem_create.h"
 #include "igt.h"
+#include "igt_kmod.h"
 #include "igt_device.h"
 
 #define OBJECT_SIZE (16*1024*1024)
@@ -202,6 +203,22 @@ test_forcewake(int fd, bool hibernate)
 	close (fw_fd);
 }
 
+static int
+test_suspend_without_i915(int fd)
+{
+	close(fd);
+	fd = -1;
+	drm_cancel_work_at_exit();
+	igt_i915_driver_unload();
+
+	igt_system_suspend_autoresume(SUSPEND_STATE_MEM, SUSPEND_TEST_NONE);
+
+	igt_kmsg(KMSG_INFO "Re-loading i915 \n");
+	igt_assert_eq(igt_i915_driver_load(NULL), 0);
+	fd = drm_open_driver(DRIVER_INTEL);
+	return fd;
+}
+
 int fd;
 
 igt_main
@@ -209,6 +226,9 @@ igt_main
 	igt_fixture
 		fd = drm_open_driver(DRIVER_INTEL);
 
+	igt_subtest("system-suspend-without-i915")
+		fd = test_suspend_without_i915(fd);
+
 	igt_subtest("fence-restore-tiled2untiled") {
 		gem_require_mappable_ggtt(fd);
 		test_fence_restore(fd, true, false);
-- 
2.25.1