drm/gk110b/gr: initvals differ from gk110

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

9 files changed, 244 insertions, 14 deletions

diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile
index 8f0dd8e..b5b1081 100644
--- a/drivers/gpu/drm/nouveau/Makefile
+++ b/drivers/gpu/drm/nouveau/Makefile
@@ -271,6 +271,7 @@ nouveau-y += core/engine/graph/ctxnvd9.o
 nouveau-y += core/engine/graph/ctxnve4.o
 nouveau-y += core/engine/graph/ctxgk20a.o
 nouveau-y += core/engine/graph/ctxnvf0.o
+nouveau-y += core/engine/graph/ctxgk110b.o
 nouveau-y += core/engine/graph/ctxnv108.o
 nouveau-y += core/engine/graph/ctxgm107.o
 nouveau-y += core/engine/graph/nv04.o
@@ -292,6 +293,7 @@ nouveau-y += core/engine/graph/nvd9.o
 nouveau-y += core/engine/graph/nve4.o
 nouveau-y += core/engine/graph/gk20a.o
 nouveau-y += core/engine/graph/nvf0.o
+nouveau-y += core/engine/graph/gk110b.o
 nouveau-y += core/engine/graph/nv108.o
 nouveau-y += core/engine/graph/gm107.o
 nouveau-y += core/engine/mpeg/nv31.o
diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nve0.c b/drivers/gpu/drm/nouveau/core/engine/device/nve0.c
index 7298438..d07eeca 100644
--- a/drivers/gpu/drm/nouveau/core/engine/device/nve0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/device/nve0.c
@@ -229,7 +229,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_ENGINE_DMAOBJ ] = &nvd0_dmaeng_oclass;
 		device->oclass[NVDEV_ENGINE_FIFO   ] =  nve0_fifo_oclass;
 		device->oclass[NVDEV_ENGINE_SW     ] =  nvc0_software_oclass;
-		device->oclass[NVDEV_ENGINE_GR     ] =  nvf0_graph_oclass;
+		device->oclass[NVDEV_ENGINE_GR     ] =  gk110b_graph_oclass;
 		device->oclass[NVDEV_ENGINE_DISP   ] =  nvf0_disp_oclass;
 		device->oclass[NVDEV_ENGINE_COPY0  ] = &nve0_copy0_oclass;
 		device->oclass[NVDEV_ENGINE_COPY1  ] = &nve0_copy1_oclass;
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxgk110b.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxgk110b.c
new file mode 100644
index 0000000..4ae70c1
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/ctxgk110b.c
@@ -0,0 +1,94 @@
+/*
+ * 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 <bskeggs@redhat.com>
+ */
+
+#include "ctxnvc0.h"
+
+/*******************************************************************************
+ * PGRAPH context register lists
+ ******************************************************************************/
+
+static const struct nvc0_graph_init
+gk110b_grctx_init_sm_0[] = {
+	{ 0x419e04,   1, 0x04, 0x00000000 },
+	{ 0x419e08,   1, 0x04, 0x0000001d },
+	{ 0x419e0c,   1, 0x04, 0x00000000 },
+	{ 0x419e10,   1, 0x04, 0x00001c02 },
+	{ 0x419e44,   1, 0x04, 0x0013eff2 },
+	{ 0x419e48,   1, 0x04, 0x00000000 },
+	{ 0x419e4c,   1, 0x04, 0x0000007f },
+	{ 0x419e50,   2, 0x04, 0x00000000 },
+	{ 0x419e58,   1, 0x04, 0x00000001 },
+	{ 0x419e5c,   3, 0x04, 0x00000000 },
+	{ 0x419e68,   1, 0x04, 0x00000002 },
+	{ 0x419e6c,  12, 0x04, 0x00000000 },
+	{ 0x419eac,   1, 0x04, 0x00001f8f },
+	{ 0x419eb0,   1, 0x04, 0x0db00d2f },
+	{ 0x419eb8,   1, 0x04, 0x00000000 },
+	{ 0x419ec8,   1, 0x04, 0x0001304f },
+	{ 0x419f30,   4, 0x04, 0x00000000 },
+	{ 0x419f40,   1, 0x04, 0x00000018 },
+	{ 0x419f44,   3, 0x04, 0x00000000 },
+	{ 0x419f58,   1, 0x04, 0x00000000 },
+	{ 0x419f70,   1, 0x04, 0x00006300 },
+	{ 0x419f78,   1, 0x04, 0x000000eb },
+	{ 0x419f7c,   1, 0x04, 0x00000404 },
+	{}
+};
+
+static const struct nvc0_graph_pack
+gk110b_grctx_pack_tpc[] = {
+	{ nvd7_grctx_init_pe_0 },
+	{ nvf0_grctx_init_tex_0 },
+	{ nvf0_grctx_init_mpc_0 },
+	{ nvf0_grctx_init_l1c_0 },
+	{ gk110b_grctx_init_sm_0 },
+	{}
+};
+
+/*******************************************************************************
+ * PGRAPH context implementation
+ ******************************************************************************/
+
+struct nouveau_oclass *
+gk110b_grctx_oclass = &(struct nvc0_grctx_oclass) {
+	.base.handle = NV_ENGCTX(GR, 0xf1),
+	.base.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nvc0_graph_context_ctor,
+		.dtor = nvc0_graph_context_dtor,
+		.init = _nouveau_graph_context_init,
+		.fini = _nouveau_graph_context_fini,
+		.rd32 = _nouveau_graph_context_rd32,
+		.wr32 = _nouveau_graph_context_wr32,
+	},
+	.main  = nve4_grctx_generate_main,
+	.mods  = nvf0_grctx_generate_mods,
+	.unkn  = nve4_grctx_generate_unkn,
+	.hub   = nvf0_grctx_pack_hub,
+	.gpc   = nvf0_grctx_pack_gpc,
+	.zcull = nvc0_grctx_pack_zcull,
+	.tpc   = gk110b_grctx_pack_tpc,
+	.ppc   = nvf0_grctx_pack_ppc,
+	.icmd  = nvf0_grctx_pack_icmd,
+	.mthd  = nvf0_grctx_pack_mthd,
+}.base;
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.h b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.h
index 8da8b62..03a9344 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.h
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.h
@@ -75,7 +75,10 @@ void nve4_grctx_generate_mods(struct nvc0_graph_priv *, struct nvc0_grctx *);
 void nve4_grctx_generate_unkn(struct nvc0_graph_priv *);
 void nve4_grctx_generate_r418bb8(struct nvc0_graph_priv *);
 
+void nvf0_grctx_generate_mods(struct nvc0_graph_priv *, struct nvc0_grctx *);
+
 extern struct nouveau_oclass *nvf0_grctx_oclass;
+extern struct nouveau_oclass *gk110b_grctx_oclass;
 extern struct nouveau_oclass *nv108_grctx_oclass;
 extern struct nouveau_oclass *gm107_grctx_oclass;
 
@@ -160,16 +163,23 @@ extern const struct nvc0_graph_pack nve4_grctx_pack_ppc[];
 extern const struct nvc0_graph_pack nve4_grctx_pack_icmd[];
 extern const struct nvc0_graph_init nve4_grctx_init_a097_0[];
 
+extern const struct nvc0_graph_pack nvf0_grctx_pack_icmd[];
+
 extern const struct nvc0_graph_pack nvf0_grctx_pack_mthd[];
 
+extern const struct nvc0_graph_pack nvf0_grctx_pack_hub[];
 extern const struct nvc0_graph_init nvf0_grctx_init_pri_0[];
 extern const struct nvc0_graph_init nvf0_grctx_init_cwd_0[];
 
+extern const struct nvc0_graph_pack nvf0_grctx_pack_gpc[];
 extern const struct nvc0_graph_init nvf0_grctx_init_gpc_unk_2[];
 
+extern const struct nvc0_graph_init nvf0_grctx_init_tex_0[];
 extern const struct nvc0_graph_init nvf0_grctx_init_mpc_0[];
 extern const struct nvc0_graph_init nvf0_grctx_init_l1c_0[];
 
+extern const struct nvc0_graph_pack nvf0_grctx_pack_ppc[];
+
 extern const struct nvc0_graph_init nv108_grctx_init_rstr2d_0[];
 
 extern const struct nvc0_graph_init nv108_grctx_init_prop_0[];
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvf0.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvf0.c
index dec03f0..3e6ac27 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvf0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvf0.c
@@ -279,7 +279,7 @@ nvf0_grctx_init_icmd_0[] = {
 	{}
 };
 
-static const struct nvc0_graph_pack
+const struct nvc0_graph_pack
 nvf0_grctx_pack_icmd[] = {
 	{ nvf0_grctx_init_icmd_0 },
 	{}
@@ -668,7 +668,7 @@ nvf0_grctx_init_be_0[] = {
 	{}
 };
 
-static const struct nvc0_graph_pack
+const struct nvc0_graph_pack
 nvf0_grctx_pack_hub[] = {
 	{ nvc0_grctx_init_main_0 },
 	{ nvf0_grctx_init_fe_0 },
@@ -704,7 +704,7 @@ nvf0_grctx_init_gpc_unk_2[] = {
 	{}
 };
 
-static const struct nvc0_graph_pack
+const struct nvc0_graph_pack
 nvf0_grctx_pack_gpc[] = {
 	{ nvc0_grctx_init_gpc_unk_0 },
 	{ nvd9_grctx_init_prop_0 },
@@ -718,7 +718,7 @@ nvf0_grctx_pack_gpc[] = {
 	{}
 };
 
-static const struct nvc0_graph_init
+const struct nvc0_graph_init
 nvf0_grctx_init_tex_0[] = {
 	{ 0x419a00,   1, 0x04, 0x000000f0 },
 	{ 0x419a04,   1, 0x04, 0x00000001 },
@@ -797,7 +797,7 @@ nvf0_grctx_init_cbm_0[] = {
 	{}
 };
 
-static const struct nvc0_graph_pack
+const struct nvc0_graph_pack
 nvf0_grctx_pack_ppc[] = {
 	{ nve4_grctx_init_pes_0 },
 	{ nvf0_grctx_init_cbm_0 },
@@ -809,7 +809,7 @@ nvf0_grctx_pack_ppc[] = {
  * PGRAPH context implementation
  ******************************************************************************/
 
-static void
+void
 nvf0_grctx_generate_mods(struct nvc0_graph_priv *priv, struct nvc0_grctx *info)
 {
 	u32 magic[GPC_MAX][4];
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/gk110b.c b/drivers/gpu/drm/nouveau/core/engine/graph/gk110b.c
new file mode 100644
index 0000000..fe71375
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/gk110b.c
@@ -0,0 +1,116 @@
+/*
+ * 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 <bskeggs@redhat.com>
+ */
+
+#include "nvc0.h"
+#include "ctxnvc0.h"
+
+/*******************************************************************************
+ * PGRAPH register lists
+ ******************************************************************************/
+
+static const struct nvc0_graph_init
+gk110b_graph_init_l1c_0[] = {
+	{ 0x419c98,   1, 0x04, 0x00000000 },
+	{ 0x419ca8,   1, 0x04, 0x00000000 },
+	{ 0x419cb0,   1, 0x04, 0x09000000 },
+	{ 0x419cb4,   1, 0x04, 0x00000000 },
+	{ 0x419cb8,   1, 0x04, 0x00b08bea },
+	{ 0x419c84,   1, 0x04, 0x00010384 },
+	{ 0x419cbc,   1, 0x04, 0x281b3646 },
+	{ 0x419cc0,   2, 0x04, 0x00000000 },
+	{ 0x419c80,   1, 0x04, 0x00020230 },
+	{ 0x419ccc,   2, 0x04, 0x00000000 },
+	{}
+};
+
+static const struct nvc0_graph_init
+gk110b_graph_init_sm_0[] = {
+	{ 0x419e00,   1, 0x04, 0x00000080 },
+	{ 0x419ea0,   1, 0x04, 0x00000000 },
+	{ 0x419ee4,   1, 0x04, 0x00000000 },
+	{ 0x419ea4,   1, 0x04, 0x00000100 },
+	{ 0x419ea8,   1, 0x04, 0x00000000 },
+	{ 0x419eb4,   1, 0x04, 0x00000000 },
+	{ 0x419ebc,   2, 0x04, 0x00000000 },
+	{ 0x419edc,   1, 0x04, 0x00000000 },
+	{ 0x419f00,   1, 0x04, 0x00000000 },
+	{ 0x419ed0,   1, 0x04, 0x00002616 },
+	{ 0x419f74,   1, 0x04, 0x00015555 },
+	{ 0x419f80,   4, 0x04, 0x00000000 },
+	{}
+};
+
+static const struct nvc0_graph_pack
+gk110b_graph_pack_mmio[] = {
+	{ nve4_graph_init_main_0 },
+	{ nvf0_graph_init_fe_0 },
+	{ nvc0_graph_init_pri_0 },
+	{ nvc0_graph_init_rstr2d_0 },
+	{ nvd9_graph_init_pd_0 },
+	{ nvf0_graph_init_ds_0 },
+	{ nvc0_graph_init_scc_0 },
+	{ nvf0_graph_init_sked_0 },
+	{ nvf0_graph_init_cwd_0 },
+	{ nvd9_graph_init_prop_0 },
+	{ nvc1_graph_init_gpc_unk_0 },
+	{ nvc0_graph_init_setup_0 },
+	{ nvc0_graph_init_crstr_0 },
+	{ nvc1_graph_init_setup_1 },
+	{ nvc0_graph_init_zcull_0 },
+	{ nvd9_graph_init_gpm_0 },
+	{ nvf0_graph_init_gpc_unk_1 },
+	{ nvc0_graph_init_gcc_0 },
+	{ nve4_graph_init_tpccs_0 },
+	{ nvf0_graph_init_tex_0 },
+	{ nve4_graph_init_pe_0 },
+	{ gk110b_graph_init_l1c_0 },
+	{ nvc0_graph_init_mpc_0 },
+	{ gk110b_graph_init_sm_0 },
+	{ nvd7_graph_init_pes_0 },
+	{ nvd7_graph_init_wwdx_0 },
+	{ nvd7_graph_init_cbm_0 },
+	{ nve4_graph_init_be_0 },
+	{ nvc0_graph_init_fe_1 },
+	{}
+};
+
+/*******************************************************************************
+ * PGRAPH engine/subdev functions
+ ******************************************************************************/
+
+struct nouveau_oclass *
+gk110b_graph_oclass = &(struct nvc0_graph_oclass) {
+	.base.handle = NV_ENGINE(GR, 0xf1),
+	.base.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nvc0_graph_ctor,
+		.dtor = nvc0_graph_dtor,
+		.init = nve4_graph_init,
+		.fini = nvf0_graph_fini,
+	},
+	.cclass = &gk110b_grctx_oclass,
+	.sclass =  nvf0_graph_sclass,
+	.mmio = gk110b_graph_pack_mmio,
+	.fecs.ucode = &nvf0_graph_fecs_ucode,
+	.gpccs.ucode = &nvf0_graph_gpccs_ucode,
+}.base;
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h
index ffc2891..65d6f7b 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h
@@ -121,9 +121,11 @@ int  nvc0_graph_init(struct nouveau_object *);
 int  nve4_graph_fini(struct nouveau_object *, bool);
 int  nve4_graph_init(struct nouveau_object *);
 
-extern struct nouveau_oclass nvc0_graph_sclass[];
+int  nvf0_graph_fini(struct nouveau_object *, bool);
 
+extern struct nouveau_oclass nvc0_graph_sclass[];
 extern struct nouveau_oclass nvc8_graph_sclass[];
+extern struct nouveau_oclass nvf0_graph_sclass[];
 
 struct nvc0_graph_init {
 	u32 addr;
@@ -149,6 +151,9 @@ struct nvc0_graph_ucode {
 extern struct nvc0_graph_ucode nvc0_graph_fecs_ucode;
 extern struct nvc0_graph_ucode nvc0_graph_gpccs_ucode;
 
+extern struct nvc0_graph_ucode nvf0_graph_fecs_ucode;
+extern struct nvc0_graph_ucode nvf0_graph_gpccs_ucode;
+
 struct nvc0_graph_oclass {
 	struct nouveau_oclass base;
 	struct nouveau_oclass **cclass;
@@ -223,9 +228,11 @@ extern const struct nvc0_graph_init nve4_graph_init_be_0[];
 extern const struct nvc0_graph_pack nve4_graph_pack_mmio[];
 
 extern const struct nvc0_graph_init nvf0_graph_init_fe_0[];
+extern const struct nvc0_graph_init nvf0_graph_init_ds_0[];
 extern const struct nvc0_graph_init nvf0_graph_init_sked_0[];
 extern const struct nvc0_graph_init nvf0_graph_init_cwd_0[];
 extern const struct nvc0_graph_init nvf0_graph_init_gpc_unk_1[];
+extern const struct nvc0_graph_init nvf0_graph_init_tex_0[];
 extern const struct nvc0_graph_init nvf0_graph_init_sm_0[];
 
 extern const struct nvc0_graph_init nv108_graph_init_gpc_unk_0[];
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nvf0.c b/drivers/gpu/drm/nouveau/core/engine/graph/nvf0.c
index c967621..768c51f 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/nvf0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nvf0.c
@@ -29,7 +29,7 @@
  * Graphics object classes
  ******************************************************************************/
 
-static struct nouveau_oclass
+struct nouveau_oclass
 nvf0_graph_sclass[] = {
 	{ 0x902d, &nouveau_object_ofuncs },
 	{ 0xa140, &nouveau_object_ofuncs },
@@ -50,7 +50,7 @@ nvf0_graph_init_fe_0[] = {
 	{}
 };
 
-static const struct nvc0_graph_init
+const struct nvc0_graph_init
 nvf0_graph_init_ds_0[] = {
 	{ 0x405844,   1, 0x04, 0x00ffffff },
 	{ 0x405850,   1, 0x04, 0x00000000 },
@@ -88,7 +88,7 @@ nvf0_graph_init_gpc_unk_1[] = {
 	{}
 };
 
-static const struct nvc0_graph_init
+const struct nvc0_graph_init
 nvf0_graph_init_tex_0[] = {
 	{ 0x419ab0,   1, 0x04, 0x00000000 },
 	{ 0x419ac8,   1, 0x04, 0x00000000 },
@@ -170,7 +170,7 @@ nvf0_graph_pack_mmio[] = {
  * PGRAPH engine/subdev functions
  ******************************************************************************/
 
-static int
+int
 nvf0_graph_fini(struct nouveau_object *object, bool suspend)
 {
 	struct nvc0_graph_priv *priv = (void *)object;
@@ -209,7 +209,7 @@ nvf0_graph_fini(struct nouveau_object *object, bool suspend)
 
 #include "fuc/hubnvf0.fuc.h"
 
-static struct nvc0_graph_ucode
+struct nvc0_graph_ucode
 nvf0_graph_fecs_ucode = {
 	.code.data = nvf0_grhub_code,
 	.code.size = sizeof(nvf0_grhub_code),
@@ -219,7 +219,7 @@ nvf0_graph_fecs_ucode = {
 
 #include "fuc/gpcnvf0.fuc.h"
 
-static struct nvc0_graph_ucode
+struct nvc0_graph_ucode
 nvf0_graph_gpccs_ucode = {
 	.code.data = nvf0_grgpc_code,
 	.code.size = sizeof(nvf0_grgpc_code),
diff --git a/drivers/gpu/drm/nouveau/core/include/engine/graph.h b/drivers/gpu/drm/nouveau/core/include/engine/graph.h
index 8c1d477..d505557 100644
--- a/drivers/gpu/drm/nouveau/core/include/engine/graph.h
+++ b/drivers/gpu/drm/nouveau/core/include/engine/graph.h
@@ -70,6 +70,7 @@ extern struct nouveau_oclass *nvd9_graph_oclass;
 extern struct nouveau_oclass *nve4_graph_oclass;
 extern struct nouveau_oclass *gk20a_graph_oclass;
 extern struct nouveau_oclass *nvf0_graph_oclass;
+extern struct nouveau_oclass *gk110b_graph_oclass;
 extern struct nouveau_oclass *nv108_graph_oclass;
 extern struct nouveau_oclass *gm107_graph_oclass;