drm/nve0/copy: add initial support for the async copy engines

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

drivers/gpu/drm/nouveau/Makefile

@@ -103,6 +103,7 @@ nouveau-y += core/engine/dmaobj/nvc0.o
 nouveau-y += core/engine/bsp/nv84.o
 nouveau-y += core/engine/copy/nva3.o
 nouveau-y += core/engine/copy/nvc0.o
+nouveau-y += core/engine/copy/nve0.o
 nouveau-y += core/engine/crypt/nv84.o
 nouveau-y += core/engine/crypt/nv98.o
 nouveau-y += core/engine/disp/nv04.o

drivers/gpu/drm/nouveau/core/engine/copy/nve0.c

+/*
+ * 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 <core/os.h>
+#include <core/enum.h>
+#include <core/class.h>
+#include <core/engctx.h>
+
+#include <engine/copy.h>
+
+struct nve0_copy_priv {
+	struct nouveau_copy base;
+};
+
+struct nve0_copy_chan {
+	struct nouveau_copy_chan base;
+};
+
+/*******************************************************************************
+ * Copy object classes
+ ******************************************************************************/
+
+static struct nouveau_oclass
+nve0_copy_sclass[] = {
+	{ 0xa0b5, &nouveau_object_ofuncs },
+	{},
+};
+
+/*******************************************************************************
+ * PCOPY context
+ ******************************************************************************/
+
+static int
+nve0_copy_context_ctor(struct nouveau_object *parent,
+		       struct nouveau_object *engine,
+		       struct nouveau_oclass *oclass, void *data, u32 size,
+		       struct nouveau_object **pobject)
+{
+	struct nve0_copy_chan *priv;
+	int ret;
+
+	ret = nouveau_copy_context_create(parent, engine, oclass, NULL, 256,
+					  256, NVOBJ_FLAG_ZERO_ALLOC, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static struct nouveau_ofuncs
+nve0_copy_context_ofuncs = {
+	.ctor = nve0_copy_context_ctor,
+	.dtor = _nouveau_copy_context_dtor,
+	.init = _nouveau_copy_context_init,
+	.fini = _nouveau_copy_context_fini,
+	.rd32 = _nouveau_copy_context_rd32,
+	.wr32 = _nouveau_copy_context_wr32,
+};
+
+static struct nouveau_oclass
+nve0_copy_cclass = {
+	.handle = NV_ENGCTX(COPY0, 0xc0),
+	.ofuncs = &nve0_copy_context_ofuncs,
+};
+
+/*******************************************************************************
+ * PCOPY engine/subdev functions
+ ******************************************************************************/
+
+static int
+nve0_copy0_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+		struct nouveau_oclass *oclass, void *data, u32 size,
+		struct nouveau_object **pobject)
+{
+	struct nve0_copy_priv *priv;
+	int ret;
+
+	if (nv_rd32(parent, 0x022500) & 0x00000100)
+		return -ENODEV;
+
+	ret = nouveau_copy_create(parent, engine, oclass, true, 0, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	nv_subdev(priv)->unit = 0x00000040;
+	nv_engine(priv)->cclass = &nve0_copy_cclass;
+	nv_engine(priv)->sclass = nve0_copy_sclass;
+	return 0;
+}
+
+static int
+nve0_copy1_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+		struct nouveau_oclass *oclass, void *data, u32 size,
+		struct nouveau_object **pobject)
+{
+	struct nve0_copy_priv *priv;
+	int ret;
+
+	if (nv_rd32(parent, 0x022500) & 0x00000200)
+		return -ENODEV;
+
+	ret = nouveau_copy_create(parent, engine, oclass, true, 1, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	nv_subdev(priv)->unit = 0x00000080;
+	nv_engine(priv)->cclass = &nve0_copy_cclass;
+	nv_engine(priv)->sclass = nve0_copy_sclass;
+	return 0;
+}
+
+struct nouveau_oclass
+nve0_copy0_oclass = {
+	.handle = NV_ENGINE(COPY0, 0xe0),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nve0_copy0_ctor,
+		.dtor = _nouveau_copy_dtor,
+		.init = _nouveau_copy_init,
+		.fini = _nouveau_copy_fini,
+	},
+};
+
+struct nouveau_oclass
+nve0_copy1_oclass = {
+	.handle = NV_ENGINE(COPY1, 0xe0),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nve0_copy1_ctor,
+		.dtor = _nouveau_copy_dtor,
+		.init = _nouveau_copy_init,
+		.fini = _nouveau_copy_fini,
+	},
+};

drivers/gpu/drm/nouveau/core/include/engine/copy.h

@@ -43,5 +43,7 @@ struct nouveau_copy {
 extern struct nouveau_oclass nva3_copy_oclass;
 extern struct nouveau_oclass nvc0_copy0_oclass;
 extern struct nouveau_oclass nvc0_copy1_oclass;
+extern struct nouveau_oclass nve0_copy0_oclass;
+extern struct nouveau_oclass nve0_copy1_oclass;
 
 #endif

drivers/gpu/drm/nouveau/core/subdev/device/nve0.c

@@ -42,6 +42,7 @@
 #include <engine/software.h>
 #include <engine/graph.h>
 #include <engine/disp.h>
+#include <engine/copy.h>
 
 int
 nve0_identify(struct nouveau_device *device)
@@ -67,6 +68,8 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_ENGINE_SW     ] = &nvc0_software_oclass;
 		device->oclass[NVDEV_ENGINE_GR     ] = &nve0_graph_oclass;
 		device->oclass[NVDEV_ENGINE_DISP   ] = &nvd0_disp_oclass;
+		device->oclass[NVDEV_ENGINE_COPY0  ] = &nve0_copy0_oclass;
+		device->oclass[NVDEV_ENGINE_COPY1  ] = &nve0_copy1_oclass;
 		break;
 	case 0xe7:
 		device->cname = "GK107";
@@ -88,6 +91,8 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_ENGINE_SW     ] = &nvc0_software_oclass;
 		device->oclass[NVDEV_ENGINE_GR     ] = &nve0_graph_oclass;
 		device->oclass[NVDEV_ENGINE_DISP   ] = &nvd0_disp_oclass;
+		device->oclass[NVDEV_ENGINE_COPY0  ] = &nve0_copy0_oclass;
+		device->oclass[NVDEV_ENGINE_COPY1  ] = &nve0_copy1_oclass;
 		break;
 	default:
 		nv_fatal(device, "unknown Kepler chipset\n");