[Intel-gfx] [PATCH i-g-t 3/3] 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 <ch...@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 fa7433ab2..917a55432 100644
--- a/tests/kms_draw_crc.c
+++ b/tests/kms_draw_crc.c
@@ -331,14 +331,24 @@ 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();
-- 
2.25.1

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