1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv04.c
new file mode 100644
index 000000000..8d5a007ec
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv04.c
@@ -0,0 +1,50 @@
+/*
+ * 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 "ram.h"
+#include "regsnv04.h"
+
+static void
+nv04_fb_init(struct nvkm_fb *fb)
+{
+	struct nvkm_device *device = fb->subdev.device;
+
+	/* This is what the DDX did for NV_ARCH_04, but a mmio-trace shows
+	 * nvidia reading PFB_CFG_0, then writing back its original value.
+	 * (which was 0x701114 in this case)
+	 */
+	nvkm_wr32(device, NV04_PFB_CFG0, 0x1114);
+}
+
+static const struct nvkm_fb_func
+nv04_fb = {
+	.init = nv04_fb_init,
+	.ram_new = nv04_ram_new,
+};
+
+int
+nv04_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
+{
+	return nvkm_fb_new_(&nv04_fb, device, type, inst, pfb);
+}