[PATCH i-g-t v11 07/21] tests/sw_sync: Add subtest test_sync_merge

Robert Foss
2016-12-07T20:08:20Z

Add subtest test_sync_merge that tests merging fences and the validity of the
resulting merged fence.

Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
---
tests/sw_sync.c | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 67 insertions(+)

diff --git a/tests/sw_sync.c b/tests/sw_sync.c
index 075791fd..7780c9e1 100644
--- a/tests/sw_sync.c
+++ b/tests/sw_sync.c
@@ -129,6 +129,70 @@ static void test_sync_busy(void)
close(timeline);
}

+static void test_sync_merge(void)
+{
+ int in_fence[3];
+ int fence_merge;
+ int timeline;
+ int active, signaled;
+
+ timeline = sw_sync_timeline_create();
+ in_fence[0] = sw_sync_fence_create(timeline, 1);
+ in_fence[1] = sw_sync_fence_create(timeline, 2);
+ in_fence[2] = sw_sync_fence_create(timeline, 3);
+
+ fence_merge = sync_merge(in_fence[0], in_fence[1]);
+ fence_merge = sync_merge(in_fence[2], fence_merge);
+
+ /* confirm all fences have one active point (even d) */
+ active = sync_fence_count_status(in_fence[0],
+ SW_SYNC_FENCE_STATUS_ACTIVE);
+ igt_assert_f(active == 1, "in_fence[0] has too many active fences\n");
+ active = sync_fence_count_status(in_fence[1],
+ SW_SYNC_FENCE_STATUS_ACTIVE);
+ igt_assert_f(active == 1, "in_fence[1] has too many active fences\n");
+ active = sync_fence_count_status(in_fence[2],
+ SW_SYNC_FENCE_STATUS_ACTIVE);
+ igt_assert_f(active == 1, "in_fence[2] has too many active fences\n");
+ active = sync_fence_count_status(fence_merge,
+ SW_SYNC_FENCE_STATUS_ACTIVE);
+ igt_assert_f(active == 1, "fence_merge has too many active fences\n");
+
+ /* confirm that fence_merge is not signaled until the max of fence 0,1,2 */
+ sw_sync_timeline_inc(timeline, 1);
+ signaled = sync_fence_count_status(in_fence[0],
+ SW_SYNC_FENCE_STATUS_SIGNALED);
+ active = sync_fence_count_status(fence_merge,
+ SW_SYNC_FENCE_STATUS_ACTIVE);
+ igt_assert_f(signaled == 1, "in_fence[0] did not signal\n");
+ igt_assert_f(active == 1, "fence_merge signaled too early\n");
+
+ sw_sync_timeline_inc(timeline, 1);
+ signaled = sync_fence_count_status(in_fence[1],
+ SW_SYNC_FENCE_STATUS_SIGNALED);
+ active = sync_fence_count_status(fence_merge,
+ SW_SYNC_FENCE_STATUS_ACTIVE);
+ igt_assert_f(signaled == 1, "in_fence[1] did not signal\n");
+ igt_assert_f(active == 1, "fence_merge signaled too early\n");
+
+ sw_sync_timeline_inc(timeline, 1);
+ signaled = sync_fence_count_status(in_fence[2],
+ SW_SYNC_FENCE_STATUS_SIGNALED);
+ igt_assert_f(signaled == 1, "in_fence[2] did not signal\n");
+ signaled = sync_fence_count_status(fence_merge,
+ SW_SYNC_FENCE_STATUS_SIGNALED);
+ active = sync_fence_count_status(fence_merge,
+ SW_SYNC_FENCE_STATUS_ACTIVE);
+ igt_assert_f(active == 0 && signaled == 1,
+ "fence_merge did not signal\n");
+
+ close(in_fence[0]);
+ close(in_fence[1]);
+ close(in_fence[2]);
+ close(fence_merge);
+ close(timeline);
+}
+
igt_main
{
igt_subtest("alloc_timeline")
@@ -145,5 +209,8 @@ igt_main

igt_subtest("sync_busy")
test_sync_busy();
+
+ igt_subtest("sync_merge")
+ test_sync_merge();