xf86drm: add drmSyncobjEventfd

This is a wrapper for DRM_IOCTL_SYNCOBJ_EVENTFD.

Signed-off-by: Simon Ser <contact@emersion.fr>

core-symbols.txt

@@ -187,6 +187,7 @@ drmSLNext
 drmSwitchToContext
 drmSyncobjCreate
 drmSyncobjDestroy
+drmSyncobjEventfd
 drmSyncobjExportSyncFile
 drmSyncobjFDToHandle
 drmSyncobjHandleToFD

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)
 {

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);