[Intel-gfx] [PATCH i-g-t] kms_plane: Add test that suspends/resumes before getting crc

[Ander Conselvan de Oliveira]

This adds a test that does a suspend/resume cycle between configuring
a plane and getting the crc value for the pipe. The intention is to
test if the user requested stated is restored properly, instead of
being clobbered by the state read out from the hardware.

Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira at intel.com>
---
 tests/kms_plane.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/tests/kms_plane.c b/tests/kms_plane.c
index 5aa58c4..c94eac0 100644
--- a/tests/kms_plane.c
+++ b/tests/kms_plane.c
@@ -32,6 +32,7 @@
 #include "drmtest.h"
 #include "igt_debugfs.h"
 #include "igt_kms.h"
+#include "igt_aux.h"
 
 typedef struct {
 	float red;
@@ -269,6 +270,7 @@ create_fb_for_mode__panning(data_t *data, drmModeModeInfo *mode,
 enum {
 	TEST_PANNING_TOP_LEFT	  = 1 << 0,
 	TEST_PANNING_BOTTOM_RIGHT = 1 << 1,
+	TEST_SUSPEND_RESUME	  = 1 << 2,
 };
 
 static void
@@ -309,8 +311,13 @@ test_plane_panning_with_output(data_t *data,
 
 	igt_display_commit(&data->display);
 
+	if (flags & TEST_SUSPEND_RESUME)
+		igt_system_suspend_autoresume();
+
 	igt_pipe_crc_collect_crc(data->pipe_crc, &crc);
 
+	igt_debug_wait_for_keypress("crc");
+
 	if (flags & TEST_PANNING_TOP_LEFT)
 		igt_assert(igt_crc_equal(&test.red_crc, &crc));
 	else
@@ -360,6 +367,11 @@ run_tests_for_pipe_plane(data_t *data, enum pipe pipe, enum igt_plane plane)
 		test_plane_panning(data, pipe, plane,
 				   TEST_PANNING_BOTTOM_RIGHT);
 
+	igt_subtest_f("plane-panning-bottom-right-suspend-pipe-%s-plane-%d",
+		      kmstest_pipe_name(pipe), plane)
+		test_plane_panning(data, pipe, plane,
+				   TEST_PANNING_BOTTOM_RIGHT |
+				   TEST_SUSPEND_RESUME);
 }
 
 static void
-- 
1.9.1