From c6013245ce9ce287bb86d327f9b6420a320a08e6 Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Thu, 20 Jul 2023 12:45:57 +0200
Subject: [PATCH] xf86drm: add drmSyncobjEventfd

This is a wrapper for DRM_IOCTL_SYNCOBJ_EVENTFD.

Signed-off-by: Simon Ser <contact@emersion.fr>
---
 core-symbols.txt |  1 +
 xf86drm.c        | 14 ++++++++++++++
 xf86drm.h        |  2 ++
 3 files changed, 17 insertions(+)

diff --git a/core-symbols.txt b/core-symbols.txt
index 9f8a323b..0d3464e9 100644
--- a/core-symbols.txt
+++ b/core-symbols.txt
@@ -187,6 +187,7 @@ drmSLNext
 drmSwitchToContext
 drmSyncobjCreate
 drmSyncobjDestroy
+drmSyncobjEventfd
 drmSyncobjExportSyncFile
 drmSyncobjFDToHandle
 drmSyncobjHandleToFD
diff --git a/xf86drm.c b/xf86drm.c
index 2afb99e0..52b83ccc 100644
--- a/xf86drm.c
+++ b/xf86drm.c
@@ -5102,6 +5102,20 @@ drm_public int drmSyncobjTransfer(int fd,
     return ret;
 }
 
+drm_public int drmSyncobjEventfd(int fd, uint32_t handle, uint64_t point, int ev_fd,
+                                 uint32_t flags)
+{
+    struct drm_syncobj_eventfd args;
+
+    memclear(args);
+    args.handle = handle;
+    args.point = point;
+    args.fd = ev_fd;
+    args.flags = flags;
+
+    return drmIoctl(fd, DRM_IOCTL_SYNCOBJ_EVENTFD, &args);
+}
+
 static char *
 drmGetFormatModifierFromSimpleTokens(uint64_t modifier)
 {
diff --git a/xf86drm.h b/xf86drm.h
index de756e88..1c38cb18 100644
--- a/xf86drm.h
+++ b/xf86drm.h
@@ -947,6 +947,8 @@ extern int drmSyncobjTransfer(int fd,
 			      uint32_t dst_handle, uint64_t dst_point,
 			      uint32_t src_handle, uint64_t src_point,
 			      uint32_t flags);
+extern int drmSyncobjEventfd(int fd, uint32_t handle, uint64_t point, int ev_fd,
+                             uint32_t flags);
 
 extern char *
 drmGetFormatModifierVendor(uint64_t modifier);