1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bus/g94.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bus/g94.c
new file mode 100644
index 000000000..a0d6e2d3f
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bus/g94.c
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2012 Nouveau Community
+ *
+ * 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: Martin Peres <martin.peres@labri.fr>
+ *          Ben Skeggs
+ */
+#include "priv.h"
+
+#include <subdev/timer.h>
+
+static int
+g94_bus_hwsq_exec(struct nvkm_bus *bus, u32 *data, u32 size)
+{
+	struct nvkm_device *device = bus->subdev.device;
+	int i;
+
+	nvkm_mask(device, 0x001098, 0x00000008, 0x00000000);
+	nvkm_wr32(device, 0x001304, 0x00000000);
+	nvkm_wr32(device, 0x001318, 0x00000000);
+	for (i = 0; i < size; i++)
+		nvkm_wr32(device, 0x080000 + (i * 4), data[i]);
+	nvkm_mask(device, 0x001098, 0x00000018, 0x00000018);
+	nvkm_wr32(device, 0x00130c, 0x00000001);
+
+	if (nvkm_msec(device, 2000,
+		if (!(nvkm_rd32(device, 0x001308) & 0x00000100))
+			break;
+	) < 0)
+		return -ETIMEDOUT;
+
+	return 0;
+}
+
+static const struct nvkm_bus_func
+g94_bus = {
+	.init = nv50_bus_init,
+	.intr = nv50_bus_intr,
+	.hwsq_exec = g94_bus_hwsq_exec,
+	.hwsq_size = 128,
+};
+
+int
+g94_bus_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+	    struct nvkm_bus **pbus)
+{
+	return nvkm_bus_new_(&g94_bus, device, type, inst, pbus);
+}