[PATCH i-g-t v3 06/13] tests/sw_sync: Add subtest test_sync_wait

robert.foss
2016-09-13T18:23:16Z

This subtest verifies that waiting on fences works properly.

Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
---
tests/sw_sync.c | 38 ++++++++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)

diff --git a/tests/sw_sync.c b/tests/sw_sync.c
index 5a2c53e..cc63012 100644
--- a/tests/sw_sync.c
+++ b/tests/sw_sync.c
@@ -81,6 +81,41 @@ static void test_alloc_merge_fence(void)
close(timeline[1]);
}

+static void test_sync_wait(void)
+{
+ int fence, ret;
+ int timeline;
+
+ timeline = sw_sync_timeline_create();
+ fence = sw_sync_fence_create(timeline, 5);
+
+ /* Wait on fence until timeout */
+ ret = sw_sync_wait(fence, 0);
+ igt_assert_f(ret == 0, "Failure waiting on fence until timeout\n");
+
+ /* Advance timeline from 0 -> 1 */
+ sw_sync_timeline_inc(timeline, 1);
+
+ /* Wait on fence until timeout */
+ ret = sw_sync_wait(fence, 0);
+ igt_assert_f(ret == 0, "Failure waiting on fence until timeout\n");
+
+ /* Signal the fence */
+ sw_sync_timeline_inc(timeline, 4);
+
+ /* Wait successfully */
+ ret = sw_sync_wait(fence, 0);
+ igt_assert_f(ret > 0, "Failure waiting on fence\n");
+
+ /* Go even further, and confirm wait still succeeds */
+ sw_sync_timeline_inc(timeline, 10);
+ ret = sw_sync_wait(fence, 0);
+ igt_assert_f(ret > 0, "Failure waiting ahead\n");
+
+ close(fence);
+ close(timeline);
+}
+
igt_main
{
igt_subtest("alloc_timeline")
@@ -94,5 +129,8 @@ igt_main

igt_subtest("alloc_merge_fence")
test_alloc_merge_fence();
+
+ igt_subtest("sync_wait")
+ test_sync_wait();