[mutter] kms/page-flip: Add a debug print with page flip event timings

[Marge Bot <marge-bot src gnome org>]

commit a0ff90a3298e02c0c5f81288d6ca3c1a723b166e
Author: Dor Askayo <dor askayo gmail com>
Date:   Sat May 28 18:17:12 2022 +0300

    kms/page-flip: Add a debug print with page flip event timings
    
    Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2439>

 src/backends/native/meta-kms-page-flip.c | 7 +++++++
 1 file changed, 7 insertions(+)
---
diff --git a/src/backends/native/meta-kms-page-flip.c b/src/backends/native/meta-kms-page-flip.c
index 817f4e7c8d..c1c29905c6 100644
--- a/src/backends/native/meta-kms-page-flip.c
+++ b/src/backends/native/meta-kms-page-flip.c
@@ -21,6 +21,7 @@
 
 #include "backends/native/meta-kms-page-flip-private.h"
 
+#include "backends/native/meta-kms-crtc.h"
 #include "backends/native/meta-kms-impl.h"
 #include "backends/native/meta-kms-private.h"
 #include "backends/native/meta-kms-update.h"
@@ -187,6 +188,12 @@ meta_kms_page_flip_data_set_timings_in_impl (MetaKmsPageFlipData *page_flip_data
 
   meta_assert_in_kms_impl (kms);
 
+  meta_topic (META_DEBUG_KMS,
+              "Setting page flip timings for CRTC (%u, %s), sequence: %u, sec: %u, usec: %u",
+              meta_kms_crtc_get_id (page_flip_data->crtc),
+              meta_kms_impl_device_get_path (page_flip_data->impl_device),
+              sequence, sec, usec);
+
   page_flip_data->sequence = sequence;
   page_flip_data->sec = sec;
   page_flip_data->usec = usec;