[PATCH i-g-t v8 6/6] tests/kms_flip: test suspend at most twice on SNB && BMG

["Michał Grzelak" <michal.grzelak@intel.com>]

gettime_us() on SNB and BMG does not return proper time after starting
suspend tests. This results in too many suspends issued before we hit
the duration_ms. Break the loop on second execution.

Signed-off-by: Michał Grzelak <michal.grzelak@intel.com>
---
 tests/kms_flip.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tests/kms_flip.c b/tests/kms_flip.c
index f17d027cc..3c5428ff0 100755
--- a/tests/kms_flip.c
+++ b/tests/kms_flip.c
@@ -1322,6 +1322,12 @@ static bool event_loop(struct test_output *o, unsigned duration_ms,
 {
 	unsigned long start, end;
 	int count = 0;
+	int devid;
+	bool wa;
+
+	devid = intel_get_drm_devid(drm_fd);
+
+	wa = IS_SANDYBRIDGE(devid) || IS_BATTLEMAGE(devid);
 
 	start = gettime_us();
 
@@ -1342,6 +1348,9 @@ static bool event_loop(struct test_output *o, unsigned duration_ms,
 		if (count && (gettime_us() - start) / 1000 >= duration_ms)
 			break;
 
+		if (count && wa && o->flags & TEST_SUSPEND)
+			break;
+
 		count++;
 	}
 
-- 
2.45.2