[igt-dev] [PATCH i-g-t v2] tests/kms_frontbuffer_tracking: Extend the test to enable FBC for each plane

[Nidhi Gupta <nidhi1.gupta@intel.com>]

Added a new subtest to validate FBC on each plane, this new subtest
will first disable the fbc feature on all pipes and planes and then
enable it on all plane one by one and confirm.

v2: Modify tests to disable primary and enable other plane
    to check fbc is enabled or not.

Signed-off-by: Nidhi Gupta <nidhi1.gupta@intel.com>
---
 tests/intel/kms_frontbuffer_tracking.c | 39 ++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/tests/intel/kms_frontbuffer_tracking.c b/tests/intel/kms_frontbuffer_tracking.c
index 215ecdeef..5d9affa4e 100644
--- a/tests/intel/kms_frontbuffer_tracking.c
+++ b/tests/intel/kms_frontbuffer_tracking.c
@@ -1941,6 +1941,30 @@ static void rte_subtest(const struct test_mode *t)
 	}
 }
 
+static void fbc_rte_subtest(const struct test_mode *t)
+{
+	igt_plane_t *plane;
+
+	prepare_subtest_data(t, NULL);
+
+	unset_all_crtcs();
+	do_assertions(ASSERT_FBC_DISABLED | ASSERT_PSR_DISABLED |
+		      DONT_ASSERT_CRC | ASSERT_DRRS_INACTIVE);
+
+	fill_fb_region(&prim_mode_params.primary, COLOR_PRIM_BG);
+	set_mode_for_params(&prim_mode_params);
+
+	for_each_plane_on_pipe(&drm.display, prim_mode_params.pipe, plane) {
+		if (plane->index <= 2) {
+			fill_fb_region(&prim_mode_params.primary, COLOR_PRIM_BG);
+			set_mode_for_params(&prim_mode_params);
+			wanted_crc = &blue_crcs[t->format].crc;
+			fbc_update_last_action();
+			do_assertions(ASSERT_NO_ACTION_CHANGE);
+		}
+	}
+}
+
 static void update_wanted_crc(const struct test_mode *t, igt_crc_t *crc)
 {
 	if (t->screen == SCREEN_PRIM)
@@ -5064,6 +5088,21 @@ igt_main_args("", long_options, help_str, opt_handler, NULL)
 		}
 	}
 
+	t.pipes = PIPE_SINGLE;
+	t.feature = FEATURE_FBC;
+	t.screen = SCREEN_PRIM;
+	t.plane = PLANE_PRI;
+	t.fbs = FBS_INDIVIDUAL;
+	t.format = FORMAT_DEFAULT;
+	/* Make sure nothing is using these values. */
+	t.flip = -1;
+	t.method = -1;
+	t.tiling = opt.tiling;
+
+	igt_subtest_f("fbc-%s-rte",
+		      pipes_str(t.pipes))
+		fbc_rte_subtest(&t);
+
 	TEST_MODE_ITER_BEGIN(t)
 
 		igt_subtest_f("%s-%s-%s-%s-%s-draw-%s",
-- 
2.39.0