[i-g-t 41/51] tests/i915/kms_cdclk: Add support for Bigjoiner

[Bhanuprakash Modem]

As many 2x tests are currently running on Pipe-A & B only, those
tests will always SKIP with the above config (8K + ). Instead of
Skipping the test, we need to add some intelligence to identify
the valid combo to execute the test.

Signed-off-by: Bhanuprakash Modem <bhanuprakash.modem at intel.com>
---
 tests/i915/kms_cdclk.c | 93 +++++++++++++++++++++++-------------------
 1 file changed, 51 insertions(+), 42 deletions(-)

diff --git a/tests/i915/kms_cdclk.c b/tests/i915/kms_cdclk.c
index 002b631c..78abfedd 100644
--- a/tests/i915/kms_cdclk.c
+++ b/tests/i915/kms_cdclk.c
@@ -243,20 +243,17 @@ static void test_mode_transition_on_all_outputs(data_t *data)
 	int debugfs_fd = data->debugfs_fd;
 	drmModeModeInfo *mode, *mode_hi, *mode_lo;
 	igt_output_t *output;
-	int valid_outputs = 0;
 	int cdclk_ref, cdclk_new;
 	uint16_t width = 0, height = 0;
 	struct igt_fb fb;
 	igt_pipe_t *pipe;
 	igt_plane_t *plane;
-	int i = 0, j = 0;
+	enum pipe p, active_pipes[IGT_MAX_PIPES];
+	int i = 0, active_pipe_count = 0;
 
 	do_cleanup_display(display);
 	igt_display_reset(display);
 
-	for_each_connected_output(&data->display, output)
-		valid_outputs++;
-
 	for_each_connected_output(display, output) {
 		mode = igt_output_get_mode(output);
 		igt_assert(mode);
@@ -269,52 +266,59 @@ static void test_mode_transition_on_all_outputs(data_t *data)
 
 	igt_create_pattern_fb(data->drm_fd, width, height, DRM_FORMAT_XRGB8888,
 			      DRM_FORMAT_MOD_LINEAR, &fb);
-	i = 0;
+
 	for_each_connected_output(display, output) {
-		pipe = &display->pipes[i];
-		plane = igt_pipe_get_plane_type(pipe, DRM_PLANE_TYPE_PRIMARY);
+		for_each_pipe(display, p) {
+			mode = NULL;
 
-		mode = NULL;
+			igt_output_set_pipe(output, p);
+			mode = igt_output_get_mode(output);
+			igt_assert(mode);
 
-		igt_output_set_pipe(output, i);
-		mode = igt_output_get_mode(output);
-		igt_assert(mode);
+			mode_hi = get_highres_mode(output);
+			igt_require(mode_hi != NULL);
+
+			igt_output_override_mode(output, mode_hi);
+			if (!igt_test_constraint(display)) {
+				igt_output_set_pipe(output, PIPE_NONE);
+				continue;
+			}
 
-		mode_lo = get_lowres_mode(output);
+			active_pipes[active_pipe_count++] = p;
+			pipe = &display->pipes[p];
+			plane = igt_pipe_get_plane_type(pipe, DRM_PLANE_TYPE_PRIMARY);
+			igt_plane_set_fb(plane, &fb);
+			igt_fb_set_size(&fb, plane, mode_hi->hdisplay, mode_hi->vdisplay);
+			igt_plane_set_size(plane, mode_hi->hdisplay, mode_hi->vdisplay);
 
-		igt_output_override_mode(output, mode_lo);
-		igt_plane_set_fb(plane, &fb);
-		igt_fb_set_size(&fb, plane, mode_lo->hdisplay, mode_lo->vdisplay);
-		igt_plane_set_size(plane, mode_lo->hdisplay, mode_lo->vdisplay);
-		i++;
+			break;
+		}
 	}
 
 	igt_display_commit2(display, COMMIT_ATOMIC);
-	cdclk_ref = get_current_cdclk_freq(debugfs_fd);
+	cdclk_new = get_current_cdclk_freq(debugfs_fd);
 
-	j = 0;
 	for_each_connected_output(display, output) {
-		pipe = &display->pipes[j];
-		plane = igt_pipe_get_plane_type(pipe, DRM_PLANE_TYPE_PRIMARY);
+		for (i = 0; i < active_pipe_count; i++) {
+			pipe = &display->pipes[active_pipes[i]];
+			plane = igt_pipe_get_plane_type(pipe, DRM_PLANE_TYPE_PRIMARY);
 
-		mode = NULL;
+			mode = NULL;
+			igt_output_set_pipe(output, i);
+			mode = igt_output_get_mode(output);
+			igt_assert(mode);
 
-		igt_output_set_pipe(output, j);
-		mode = igt_output_get_mode(output);
-		igt_assert(mode);
-
-		mode_hi = get_highres_mode(output);
-		igt_require(mode_hi != NULL);
+			mode_lo = get_lowres_mode(output);
 
-		igt_output_override_mode(output, mode_hi);
-		igt_plane_set_fb(plane, &fb);
-		igt_fb_set_size(&fb, plane, mode_hi->hdisplay, mode_hi->vdisplay);
-		igt_plane_set_size(plane, mode_hi->hdisplay, mode_hi->vdisplay);
-		j++;
+			igt_output_override_mode(output, mode_lo);
+			igt_plane_set_fb(plane, &fb);
+			igt_fb_set_size(&fb, plane, mode_lo->hdisplay, mode_lo->vdisplay);
+			igt_plane_set_size(plane, mode_lo->hdisplay, mode_lo->vdisplay);
+		}
 	}
 
 	igt_display_commit2(display, COMMIT_ATOMIC);
-	cdclk_new = get_current_cdclk_freq(debugfs_fd);
+	cdclk_ref = get_current_cdclk_freq(debugfs_fd);
 	igt_info("CD clock frequency %d -> %d\n", cdclk_ref, cdclk_new);
 
 	/* cdclk should bump */
@@ -332,13 +336,18 @@ static void run_cdclk_test(data_t *data, uint32_t flags)
 	enum pipe pipe;
 
 	for_each_pipe_with_valid_output(display, pipe, output) {
-		igt_dynamic_f("pipe-%s-%s", kmstest_pipe_name(pipe), output->name)
-			if (igt_pipe_connector_valid(pipe, output)) {
-				if (flags & TEST_PLANESCALING)
-					test_plane_scaling(data, pipe, output);
-				if (flags & TEST_MODETRANSITION)
-					test_mode_transition(data, pipe, output);
-			}
+		igt_output_set_pipe(output, pipe);
+		if (!igt_test_constraint(display)) {
+			igt_output_set_pipe(output, PIPE_NONE);
+			continue;
+		}
+
+		igt_dynamic_f("pipe-%s-%s", kmstest_pipe_name(pipe), output->name) {
+			if (flags & TEST_PLANESCALING)
+				test_plane_scaling(data, pipe, output);
+			if (flags & TEST_MODETRANSITION)
+				test_mode_transition(data, pipe, output);
+		}
 	}
 }
 
-- 
2.35.1