[PATCH i-g-t v4 1/2] tests/kms_async_flips: Async flips suspend resume test

[Santhosh Reddy Guddati]

Test functionality of async flips with suspend and resume

v2: Re-use existing function and use s/r API (Swathi)

Signed-off-by: Santhosh Reddy Guddati <santhosh.reddy.guddati at intel.com>
---
 tests/kms_async_flips.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/tests/kms_async_flips.c b/tests/kms_async_flips.c
index 5b70c4033..08510e70d 100644
--- a/tests/kms_async_flips.c
+++ b/tests/kms_async_flips.c
@@ -66,6 +66,9 @@
  *
  * SUBTEST: invalid-async-flip
  * Description: Negative case to verify if changes in fb are rejected from kernel as expected
+ *
+ * SUBTEST: async-flip-suspend-resume
+ * Description: Verify the async flip functionality with suspend and resume cycle
  */
 
 #define CURSOR_POS 128
@@ -99,6 +102,7 @@ typedef struct {
 	bool flip_pending;
 	enum pipe pipe;
 	bool alternate_sync_async;
+	bool suspend_resume;
 	bool allow_fail;
 	struct buf_ops *bops;
 } data_t;
@@ -260,6 +264,7 @@ static void test_async_flip(data_t *data)
 	int ret, frame;
 	long long int fps;
 	struct timeval start, end, diff;
+	int suspend_time = 1;
 
 	igt_display_commit2(&data->display, data->display.is_atomic ? COMMIT_ATOMIC : COMMIT_LEGACY);
 
@@ -312,6 +317,10 @@ static void test_async_flip(data_t *data)
 				     data->flip_interval, data->refresh_rate, MIN_FLIPS_PER_FRAME);
 		}
 
+		if (data->suspend_resume && diff.tv_sec == suspend_time) {
+			igt_system_suspend_autoresume(SUSPEND_STATE_MEM, SUSPEND_TEST_NONE);
+			suspend_time = 0;
+		}
 		frame++;
 	} while (diff.tv_sec < RUN_TIME);
 
@@ -750,6 +759,12 @@ igt_main
 		run_test(&data, test_crc);
 	}
 
+	igt_describe("Verify the async flip functionality after suspend and resume cycle");
+	igt_subtest_with_dynamic("async-flip-suspend-resume") {
+		data.suspend_resume = true;
+		run_test(&data, test_async_flip);
+	}
+
 	igt_fixture {
 		for (i = 0; i < NUM_FBS; i++)
 			igt_remove_fb(data.drm_fd, &data.bufs[i]);
-- 
2.34.1