1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvif/head.c b/drivers/gpu/drm/nouveau/nvif/head.c
new file mode 100644
index 000000000000..f00e01d232db
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvif/head.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2021 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include <nvif/head.h>
+#include <nvif/disp.h>
+#include <nvif/printf.h>
+
+#include <nvif/class.h>
+#include <nvif/if0013.h>
+
+int
+nvif_head_vblank_event_ctor(struct nvif_head *head, const char *name, nvif_event_func func,
+			    bool wait, struct nvif_event *event)
+{
+	int ret = nvif_event_ctor(&head->object, name ?: "nvifHeadVBlank", nvif_head_id(head),
+				  func, wait, NULL, 0, event);
+	NVIF_ERRON(ret, &head->object, "[NEW EVENT:VBLANK]");
+	return ret;
+}
+
+void
+nvif_head_dtor(struct nvif_head *head)
+{
+	nvif_object_dtor(&head->object);
+}
+
+int
+nvif_head_ctor(struct nvif_disp *disp, const char *name, int id, struct nvif_head *head)
+{
+	struct nvif_head_v0 args;
+	int ret;
+
+	args.version = 0;
+	args.id = id;
+
+	ret = nvif_object_ctor(&disp->object, name ? name : "nvifHead", id, NVIF_CLASS_HEAD,
+			       &args, sizeof(args), &head->object);
+	NVIF_ERRON(ret, &disp->object, "[NEW head id:%d]", args.id);
+	return ret;
+}