dnl #
dnl # commit 06eaae46381737a6236ad6fe81e5358fad3bbbe5
dnl # drm: Implement drm_modeset_lock_all_ctx()
dnl #
AC_DEFUN([AC_AMDGPU_DRM_MODESET_LOCK_ALL_CTX],
	[AC_MSG_CHECKING([whether drm_modeset_lock_all_ctx() is available])
	AC_KERNEL_TRY_COMPILE_SYMBOL([
		#include <drm/drm_modeset_lock.h>
	], [
		drm_modeset_lock_all_ctx(NULL, NULL);
	], [drm_modeset_lock_all_ctx], [drivers/gpu/drm/drm_modeset_lock.c], [
		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_DRM_MODESET_LOCK_ALL_CTX, 1, [drm_modeset_lock_all_ctx() is available])
	], [
		AC_MSG_RESULT(no)
	])
])