1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv04.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv04.c
new file mode 100644
index 000000000..9acaec5c2
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv04.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2012 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.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+#include "head.h"
+
+#include <core/client.h>
+
+#include <nvif/cl0046.h>
+#include <nvif/unpack.h>
+
+int
+nv04_disp_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
+{
+	struct nvkm_disp *disp = nvkm_disp(object->engine);
+	union {
+		struct nv04_disp_mthd_v0 v0;
+	} *args = data;
+	struct nvkm_head *head;
+	int id, ret = -ENOSYS;
+
+	nvif_ioctl(object, "disp mthd size %d\n", size);
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
+		nvif_ioctl(object, "disp mthd vers %d mthd %02x head %d\n",
+			   args->v0.version, args->v0.method, args->v0.head);
+		mthd = args->v0.method;
+		id   = args->v0.head;
+	} else
+		return ret;
+
+	if (!(head = nvkm_head_find(disp, id)))
+		return -ENXIO;
+
+	switch (mthd) {
+	case NV04_DISP_SCANOUTPOS:
+		return nvkm_head_mthd_scanoutpos(object, head, data, size);
+	default:
+		break;
+	}
+
+	return -EINVAL;
+}