From c2aa7fd965cb7ee8bed24f4122b720aca8f0fc1e Mon Sep 17 00:00:00 2001
From: vaxerski <43317083+vaxerski@users.noreply.github.com>
Date: Thu, 28 Sep 2023 17:21:22 +0100
Subject: backend/drm: Add async page flip support to legacy

Atomic doesn't support such flags yet.
---
 backend/drm/legacy.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'backend/drm/legacy.c')

diff --git a/backend/drm/legacy.c b/backend/drm/legacy.c
index a8f618cf..ee64f78c 100644
--- a/backend/drm/legacy.c
+++ b/backend/drm/legacy.c
@@ -175,8 +175,13 @@ static bool legacy_crtc_commit(struct wlr_drm_connector *conn,
 	}
 
 	if (flags & DRM_MODE_PAGE_FLIP_EVENT) {
+		uint32_t page_flags = DRM_MODE_PAGE_FLIP_EVENT;
+		if (flags & DRM_MODE_PAGE_FLIP_ASYNC) {
+			page_flags |= DRM_MODE_PAGE_FLIP_ASYNC;
+		}
+
 		if (drmModePageFlip(drm->fd, crtc->id, fb_id,
-				DRM_MODE_PAGE_FLIP_EVENT, drm)) {
+				page_flags, drm)) {
 			wlr_drm_conn_log_errno(conn, WLR_ERROR, "drmModePageFlip failed");
 			return false;
 		}
-- 
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