tests/debugfs_pipe_crc: new subtest to check CRC frame numbers

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/tests/debugfs_pipe_crc.c b/tests/debugfs_pipe_crc.c
index 3d02554..32572c8 100644 (file)
--- a/tests/debugfs_pipe_crc.c
+++ b/tests/debugfs_pipe_crc.c
@@ -146,7 +146,9 @@ static void display_fini(data_t *data)
        drmModeFreeResources(data->resources);
 }
 
-static void test_read_crc(data_t *data, int pipe)
+#define TEST_SEQUENCE (1<<0)
+
+static void test_read_crc(data_t *data, int pipe, unsigned flags)
 {
        connector_t *connector;
        igt_pipe_crc_t *pipe_crc;
@@ -193,6 +195,11 @@ static void test_read_crc(data_t *data, int pipe)
                igt_assert(igt_crc_equal(&crcs[0], &crcs[1]));
                igt_assert(igt_crc_equal(&crcs[1], &crcs[2]));
 
+               if (flags & TEST_SEQUENCE) {
+                       igt_assert(crcs[0].frame + 1 == crcs[1].frame);
+                       igt_assert(crcs[1].frame + 1 == crcs[2].frame);
+               }
+
                free(crcs);
                igt_pipe_crc_free(pipe_crc);
                kmstest_remove_fb(data->drm_fd, &connector->fb);
@@ -247,14 +254,13 @@ int main(int argc, char **argv)
        igt_subtest("bad-nb-words-3")
                test_bad_command(&data, "pipe A none option");
 
-       igt_subtest("read-crc-pipe-A")
-               test_read_crc(&data, 0);
+       for (int i = 0; i < 3; i++) {
+               igt_subtest_f("read-crc-pipe-%c", 'A'+i)
+                       test_read_crc(&data, i, 0);
 
-       igt_subtest("read-crc-pipe-B")
-               test_read_crc(&data, 1);
-
-       igt_subtest("read-crc-pipe-C")
-               test_read_crc(&data, 2);
+               igt_subtest_f("read-crc-pipe-%c-frame-sequence", 'A'+i)
+                       test_read_crc(&data, i, TEST_SEQUENCE);
+       }
 
        igt_fixture {
                igt_pipe_crc_reset();