1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/ovlynv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/ovlynv50.c
new file mode 100644
index 000000000000..6fa296c047b8
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/ovlynv50.c
@@ -0,0 +1,111 @@
+/*
+ * 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 "dmacnv50.h"
+#include "rootnv50.h"
+
+#include <core/client.h>
+
+#include <nvif/class.h>
+#include <nvif/unpack.h>
+
+int
+nv50_disp_ovly_new(const struct nv50_disp_dmac_func *func,
+		   const struct nv50_disp_chan_mthd *mthd,
+		   struct nv50_disp_root *root, int chid,
+		   const struct nvkm_oclass *oclass, void *data, u32 size,
+		   struct nvkm_object **pobject)
+{
+	union {
+		struct nv50_disp_overlay_channel_dma_v0 v0;
+	} *args = data;
+	struct nvkm_object *parent = oclass->parent;
+	struct nv50_disp *disp = root->disp;
+	int head, ret;
+	u64 push;
+
+	nvif_ioctl(parent, "create disp overlay channel dma size %d\n", size);
+	if (nvif_unpack(args->v0, 0, 0, false)) {
+		nvif_ioctl(parent, "create disp overlay channel dma vers %d "
+				   "pushbuf %016llx head %d\n",
+			   args->v0.version, args->v0.pushbuf, args->v0.head);
+		if (args->v0.head > disp->base.head.nr)
+			return -EINVAL;
+		push = args->v0.pushbuf;
+		head = args->v0.head;
+	} else
+		return ret;
+
+	return nv50_disp_dmac_new_(func, mthd, root, chid + head,
+				   head, push, oclass, pobject);
+}
+
+static const struct nv50_disp_mthd_list
+nv50_disp_ovly_mthd_base = {
+	.mthd = 0x0000,
+	.addr = 0x000000,
+	.data = {
+		{ 0x0080, 0x000000 },
+		{ 0x0084, 0x0009a0 },
+		{ 0x0088, 0x0009c0 },
+		{ 0x008c, 0x0009c8 },
+		{ 0x0090, 0x6109b4 },
+		{ 0x0094, 0x610970 },
+		{ 0x00a0, 0x610998 },
+		{ 0x00a4, 0x610964 },
+		{ 0x00c0, 0x610958 },
+		{ 0x00e0, 0x6109a8 },
+		{ 0x00e4, 0x6109d0 },
+		{ 0x00e8, 0x6109d8 },
+		{ 0x0100, 0x61094c },
+		{ 0x0104, 0x610984 },
+		{ 0x0108, 0x61098c },
+		{ 0x0800, 0x6109f8 },
+		{ 0x0808, 0x610a08 },
+		{ 0x080c, 0x610a10 },
+		{ 0x0810, 0x610a00 },
+		{}
+	}
+};
+
+static const struct nv50_disp_chan_mthd
+nv50_disp_ovly_chan_mthd = {
+	.name = "Overlay",
+	.addr = 0x000540,
+	.prev = 0x000004,
+	.data = {
+		{ "Global", 1, &nv50_disp_ovly_mthd_base },
+		{}
+	}
+};
+
+const struct nv50_disp_dmac_oclass
+nv50_disp_ovly_oclass = {
+	.base.oclass = NV50_DISP_OVERLAY_CHANNEL_DMA,
+	.base.minver = 0,
+	.base.maxver = 0,
+	.ctor = nv50_disp_ovly_new,
+	.func = &nv50_disp_dmac_func,
+	.mthd = &nv50_disp_ovly_chan_mthd,
+	.chid = 3,
+};