drm/nouveau/ce/gm204: initial support

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

drivers/gpu/drm/nouveau/include/nvkm/engine/ce.h

@@ -10,4 +10,7 @@ extern struct nvkm_oclass gf100_ce1_oclass;
 extern struct nvkm_oclass gk104_ce0_oclass;
 extern struct nvkm_oclass gk104_ce1_oclass;
 extern struct nvkm_oclass gk104_ce2_oclass;
+extern struct nvkm_oclass gm204_ce0_oclass;
+extern struct nvkm_oclass gm204_ce1_oclass;
+extern struct nvkm_oclass gm204_ce2_oclass;
 #endif

drivers/gpu/drm/nouveau/nvkm/engine/ce/Kbuild

@@ -1,3 +1,4 @@
 nvkm-y += nvkm/engine/ce/gt215.o
 nvkm-y += nvkm/engine/ce/gf100.o
 nvkm-y += nvkm/engine/ce/gk104.o
+nvkm-y += nvkm/engine/ce/gm204.o

drivers/gpu/drm/nouveau/nvkm/engine/ce/gm204.c

@@ -0,0 +1,173 @@
+/*
+ * Copyright 2015 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 <engine/ce.h>
+
+#include <core/engctx.h>
+
+struct gm204_ce_priv {
+	struct nvkm_engine base;
+};
+
+/*******************************************************************************
+ * Copy object classes
+ ******************************************************************************/
+
+static struct nvkm_oclass
+gm204_ce_sclass[] = {
+	{ 0xb0b5, &nvkm_object_ofuncs },
+	{},
+};
+
+/*******************************************************************************
+ * PCE context
+ ******************************************************************************/
+
+static struct nvkm_ofuncs
+gm204_ce_context_ofuncs = {
+	.ctor = _nvkm_engctx_ctor,
+	.dtor = _nvkm_engctx_dtor,
+	.init = _nvkm_engctx_init,
+	.fini = _nvkm_engctx_fini,
+	.rd32 = _nvkm_engctx_rd32,
+	.wr32 = _nvkm_engctx_wr32,
+};
+
+static struct nvkm_oclass
+gm204_ce_cclass = {
+	.handle = NV_ENGCTX(CE0, 0x24),
+	.ofuncs = &gm204_ce_context_ofuncs,
+};
+
+/*******************************************************************************
+ * PCE engine/subdev functions
+ ******************************************************************************/
+
+static void
+gm204_ce_intr(struct nvkm_subdev *subdev)
+{
+	const int ce = nv_subidx(subdev) - NVDEV_ENGINE_CE0;
+	struct gm204_ce_priv *priv = (void *)subdev;
+	u32 stat = nv_rd32(priv, 0x104908 + (ce * 0x1000));
+
+	if (stat) {
+		nv_warn(priv, "unhandled intr 0x%08x\n", stat);
+		nv_wr32(priv, 0x104908 + (ce * 0x1000), stat);
+	}
+}
+
+static int
+gm204_ce0_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+	       struct nvkm_oclass *oclass, void *data, u32 size,
+	       struct nvkm_object **pobject)
+{
+	struct gm204_ce_priv *priv;
+	int ret;
+
+	ret = nvkm_engine_create(parent, engine, oclass, true,
+				 "PCE0", "ce0", &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	nv_subdev(priv)->unit = 0x00000040;
+	nv_subdev(priv)->intr = gm204_ce_intr;
+	nv_engine(priv)->cclass = &gm204_ce_cclass;
+	nv_engine(priv)->sclass = gm204_ce_sclass;
+	return 0;
+}
+
+static int
+gm204_ce1_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+	       struct nvkm_oclass *oclass, void *data, u32 size,
+	       struct nvkm_object **pobject)
+{
+	struct gm204_ce_priv *priv;
+	int ret;
+
+	ret = nvkm_engine_create(parent, engine, oclass, true,
+				 "PCE1", "ce1", &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	nv_subdev(priv)->unit = 0x00000080;
+	nv_subdev(priv)->intr = gm204_ce_intr;
+	nv_engine(priv)->cclass = &gm204_ce_cclass;
+	nv_engine(priv)->sclass = gm204_ce_sclass;
+	return 0;
+}
+
+static int
+gm204_ce2_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+	       struct nvkm_oclass *oclass, void *data, u32 size,
+	       struct nvkm_object **pobject)
+{
+	struct gm204_ce_priv *priv;
+	int ret;
+
+	ret = nvkm_engine_create(parent, engine, oclass, true,
+				 "PCE2", "ce2", &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	nv_subdev(priv)->unit = 0x00200000;
+	nv_subdev(priv)->intr = gm204_ce_intr;
+	nv_engine(priv)->cclass = &gm204_ce_cclass;
+	nv_engine(priv)->sclass = gm204_ce_sclass;
+	return 0;
+}
+
+struct nvkm_oclass
+gm204_ce0_oclass = {
+	.handle = NV_ENGINE(CE0, 0x24),
+	.ofuncs = &(struct nvkm_ofuncs) {
+		.ctor = gm204_ce0_ctor,
+		.dtor = _nvkm_engine_dtor,
+		.init = _nvkm_engine_init,
+		.fini = _nvkm_engine_fini,
+	},
+};
+
+struct nvkm_oclass
+gm204_ce1_oclass = {
+	.handle = NV_ENGINE(CE1, 0x24),
+	.ofuncs = &(struct nvkm_ofuncs) {
+		.ctor = gm204_ce1_ctor,
+		.dtor = _nvkm_engine_dtor,
+		.init = _nvkm_engine_init,
+		.fini = _nvkm_engine_fini,
+	},
+};
+
+struct nvkm_oclass
+gm204_ce2_oclass = {
+	.handle = NV_ENGINE(CE2, 0x24),
+	.ofuncs = &(struct nvkm_ofuncs) {
+		.ctor = gm204_ce2_ctor,
+		.dtor = _nvkm_engine_dtor,
+		.init = _nvkm_engine_init,
+		.fini = _nvkm_engine_fini,
+	},
+};

drivers/gpu/drm/nouveau/nvkm/engine/device/gm100.c

@@ -133,10 +133,10 @@ gm100_identify(struct nvkm_device *device)
 		device->oclass[NVDEV_ENGINE_GR     ] =  gm107_gr_oclass;
 #endif
 		device->oclass[NVDEV_ENGINE_DISP   ] =  gm204_disp_oclass;
-#if 0
 		device->oclass[NVDEV_ENGINE_CE0    ] = &gm204_ce0_oclass;
 		device->oclass[NVDEV_ENGINE_CE1    ] = &gm204_ce1_oclass;
 		device->oclass[NVDEV_ENGINE_CE2    ] = &gm204_ce2_oclass;
+#if 0
 		device->oclass[NVDEV_ENGINE_MSVLD  ] = &gk104_msvld_oclass;
 		device->oclass[NVDEV_ENGINE_MSPDEC ] = &gk104_mspdec_oclass;
 		device->oclass[NVDEV_ENGINE_MSPPP  ] = &gf100_msppp_oclass;