drm/gm107/devinit: initial implementation

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/Makefile

@@ -77,6 +77,7 @@ nouveau-y += core/subdev/devinit/nv98.o
 nouveau-y += core/subdev/devinit/nva3.o
 nouveau-y += core/subdev/devinit/nvaf.o
 nouveau-y += core/subdev/devinit/nvc0.o
+nouveau-y += core/subdev/devinit/gm107.o
 nouveau-y += core/subdev/fb/base.o
 nouveau-y += core/subdev/fb/nv04.o
 nouveau-y += core/subdev/fb/nv10.o

drivers/gpu/drm/nouveau/core/include/subdev/devinit.h

@@ -28,5 +28,6 @@ extern struct nouveau_oclass *nv98_devinit_oclass;
 extern struct nouveau_oclass *nva3_devinit_oclass;
 extern struct nouveau_oclass *nvaf_devinit_oclass;
 extern struct nouveau_oclass *nvc0_devinit_oclass;
+extern struct nouveau_oclass *gm107_devinit_oclass;
 
 #endif

drivers/gpu/drm/nouveau/core/subdev/devinit/gm107.c

@@ -0,0 +1,56 @@
+/*
+ * Copyright 2013 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 "nv50.h"
+
+static u64
+gm107_devinit_disable(struct nouveau_devinit *devinit)
+{
+	struct nv50_devinit_priv *priv = (void *)devinit;
+	u32 r021c00 = nv_rd32(priv, 0x021c00);
+	u32 r021c04 = nv_rd32(priv, 0x021c04);
+	u64 disable = 0ULL;
+
+	if (r021c00 & 0x00000001)
+		disable |= (1ULL << NVDEV_ENGINE_COPY0);
+	if (r021c00 & 0x00000004)
+		disable |= (1ULL << NVDEV_ENGINE_COPY2);
+	if (r021c04 & 0x00000001)
+		disable |= (1ULL << NVDEV_ENGINE_DISP);
+
+	return disable;
+}
+
+struct nouveau_oclass *
+gm107_devinit_oclass = &(struct nouveau_devinit_impl) {
+	.base.handle = NV_SUBDEV(DEVINIT, 0x07),
+	.base.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nv50_devinit_ctor,
+		.dtor = _nouveau_devinit_dtor,
+		.init = nv50_devinit_init,
+		.fini = _nouveau_devinit_fini,
+	},
+	.pll_set = nvc0_devinit_pll_set,
+	.disable = gm107_devinit_disable,
+}.base;

drivers/gpu/drm/nouveau/core/subdev/devinit/nv50.h

@@ -15,4 +15,6 @@ int  nv50_devinit_pll_set(struct nouveau_devinit *, u32, u32);
 
 int  nva3_devinit_pll_set(struct nouveau_devinit *, u32, u32);
 
+int  nvc0_devinit_pll_set(struct nouveau_devinit *, u32, u32);
+
 #endif

drivers/gpu/drm/nouveau/core/subdev/devinit/nvc0.c

@@ -24,7 +24,7 @@
 
 #include "nv50.h"
 
-static int
+int
 nvc0_devinit_pll_set(struct nouveau_devinit *devinit, u32 type, u32 freq)
 {
 	struct nv50_devinit_priv *priv = (void *)devinit;