Signed-off-by: Damien Lespiau <damien.lespiau@xxxxxxxxx>
---
lib/igt_kms.c | 26 +++++++++++++++++++++++++-
1 file changed, 25 insertions(+), 1 deletion(-)
diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index c503ebb..1933fa6 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -977,10 +977,34 @@ void igt_display_fini(igt_display_t *display)
static void igt_display_refresh(igt_display_t *display)
{
- int i;
+ int i, j;
display->pipes_in_use = 0;
+ /* Check that two outputs aren't trying to use the same pipe */
+ for (i = 0; i < display->n_outputs; i++) {
+ igt_output_t *a = &display->outputs[i];
+
+ if (a->pending_crtc_idx_mask == -1UL)
+ continue;
+
+ for (j = 0; j < display->n_outputs; j++) {
+ igt_output_t *b = &display->outputs[j];
+
+ if (i == j)
+ continue;
+
+ if (b->pending_crtc_idx_mask == -1UL)
+ continue;
+
+ igt_assert_f(a->pending_crtc_idx_mask !=
+ b->pending_crtc_idx_mask,
+ "%s and %s are both trying to use pipe %c\n",
+ igt_output_name(a), igt_output_name(b),
+ pipe_name(ffs(a->pending_crtc_idx_mask) - 1));
+ }
+ }
+
/*
* The pipe allocation has to be done in two phases:
* - first, try to satisfy the outputs where a pipe has been specified
--
1.8.3.1
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