[PATCH i-g-t 2/2] lib/igt_kms: Force joiner support in bigjoiner checks

[Bhanuprakash Modem]

As we recently introduced the option (through debugfs) to
force the bigjoiner, needs to extend the support in bigjoiner
checks to handle the force joiner.

Cc: Kunal Joshi <kunal1.joshi at intel.com>
Signed-off-by: Bhanuprakash Modem <bhanuprakash.modem at intel.com>
---
 lib/igt_kms.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index 9ff80378d..d2bb4727a 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -6316,6 +6316,7 @@ bool igt_check_bigjoiner_support(igt_display_t *display)
 	struct {
 		enum pipe idx;
 		drmModeModeInfo *mode;
+		bool force_joiner;
 	} pipes[IGT_MAX_PIPES];
 	int max_dotclock;
 
@@ -6333,6 +6334,9 @@ bool igt_check_bigjoiner_support(igt_display_t *display)
 
 		pipes[pipes_in_use].idx = output->pending_pipe;
 		pipes[pipes_in_use].mode = igt_output_get_mode(output);
+		pipes[pipes_in_use].force_joiner =
+			(igt_has_force_joiner_debugfs(display->drm_fd, output) &&
+			 check_force_bigjoiner_status(display->drm_fd, output->name, true));
 		pipes_in_use++;
 	}
 
@@ -6344,21 +6348,24 @@ bool igt_check_bigjoiner_support(igt_display_t *display)
 	max_dotclock = igt_get_max_dotclock(display->drm_fd);
 
 	/*
-	 * if mode resolution > 5K (or) mode.clock > max dot-clock, then ignore
+	 * if force joiner (or) mode resolution > 5K (or) mode.clock > max dot-clock,
+	 * then ignore
 	 *  - if the consecutive pipe is not available
 	 *  - last crtc in single/multi-connector config
 	 *  - consecutive crtcs in multi-connector config
 	 *
 	 * in multi-connector config ignore if
-	 *  - previous crtc (mode resolution > 5K or mode.clock > max dot-clock) and
+	 *  - previous crtc (force joiner or mode resolution > 5K or mode.clock > max dot-clock) and
 	 *  - current & previous crtcs are consecutive
 	 */
 	for (i = 0; i < pipes_in_use; i++) {
-		if ((igt_bigjoiner_possible(pipes[i].mode, max_dotclock) &&
+		if (((pipes[i].force_joiner ||
+		      igt_bigjoiner_possible(pipes[i].mode, max_dotclock)) &&
 		     ((pipes[i].idx >= (total_pipes - 1)) ||
 		      (!display->pipes[pipes[i].idx + 1].enabled) ||
 		      ((i < (pipes_in_use - 1)) && (abs(pipes[i + 1].idx - pipes[i].idx) <= 1)))) ||
-		    ((i > 0) && igt_bigjoiner_possible(pipes[i - 1].mode, max_dotclock) &&
+		    ((i > 0) && (pipes[i - 1].force_joiner ||
+				 igt_bigjoiner_possible(pipes[i - 1].mode, max_dotclock)) &&
 		     ((!display->pipes[pipes[i - 1].idx + 1].enabled) ||
 		      (abs(pipes[i].idx - pipes[i - 1].idx) <= 1)))) {
 			igt_debug("Pipe/Output combo is not possible with selected mode(s).\n");
-- 
2.43.2