[Intel-gfx] [PATCH i-g-t] igt/kms_draw_crc: Test for a working GPU first

[Chris Wilson]

The draw-method-blt subtests require a working GPU, so create a subtest
group for the draw-methods, and skip the BLT group using
 igt_require_gem() in its fixture.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 tests/kms_draw_crc.c | 26 ++++++++++++++++++--------
 1 file changed, 18 insertions(+), 8 deletions(-)

diff --git a/tests/kms_draw_crc.c b/tests/kms_draw_crc.c
index 86dcf3928..4bf2f1ed4 100644
--- a/tests/kms_draw_crc.c
+++ b/tests/kms_draw_crc.c
@@ -323,14 +323,24 @@ igt_main
 
 	for (format_idx = 0; format_idx < N_FORMATS; format_idx++) {
 	for (method = 0; method < IGT_DRAW_METHOD_COUNT; method++) {
-	for (tiling_idx = 0; tiling_idx < N_TILING_METHODS; tiling_idx++) {
-		igt_subtest_f("draw-method-%s-%s-%s",
-			      format_str(format_idx),
-			      igt_draw_get_method_name(method),
-			      tiling_str(tiling_idx))
-			draw_method_subtest(method, format_idx,
-					    tilings[tiling_idx]);
-	} } }
+	igt_subtest_group {
+		igt_fixture {
+			if (method == IGT_DRAW_BLT)
+				igt_require_gem(drm_fd);
+		}
+
+		for (tiling_idx = 0;
+		     tiling_idx < N_TILING_METHODS;
+		     tiling_idx++) {
+			igt_subtest_f("draw-method-%s-%s-%s",
+				      format_str(format_idx),
+				      igt_draw_get_method_name(method),
+				      tiling_str(tiling_idx))
+				draw_method_subtest(method,
+						    format_idx,
+						    tilings[tiling_idx]);
+		}
+	}}}
 
 	igt_subtest("fill-fb")
 		fill_fb_subtest();
-- 
2.18.0