drm/nouveau/sw: rename from software (no binary change)

Shorter device name, make consistent with our engine enums.

The namespace of NVKM is being changed to nvkm_ instead of nouveau_,
which will be used for the DRM part of the driver.  This is being
done in order to make it very clear as to what part of the driver a
given symbol belongs to, and as a minor step towards splitting the
DRM driver out to be able to stand on its own (for virt).

Because there's already a large amount of churn here anyway, this is
as good a time as any to also switch to NVIDIA's device and chipset
naming to ease collaboration with them.

A comparison of objdump disassemblies proves no code changes.

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

1 files changed, 146 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/sw/nv04.c b/drivers/gpu/drm/nouveau/nvkm/engine/sw/nv04.c
new file mode 100644
index 000000000000..3d0e4bc76389
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/sw/nv04.c
@@ -0,0 +1,146 @@
+/*
+ * 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/engctx.h>
+
+#include <engine/sw.h>
+#include <engine/fifo.h>
+
+struct nv04_sw_priv {
+	struct nouveau_sw base;
+};
+
+struct nv04_sw_chan {
+	struct nouveau_sw_chan base;
+};
+
+/*******************************************************************************
+ * software object classes
+ ******************************************************************************/
+
+static int
+nv04_sw_set_ref(struct nouveau_object *object, u32 mthd,
+		      void *data, u32 size)
+{
+	struct nouveau_object *channel = (void *)nv_engctx(object->parent);
+	struct nouveau_fifo_chan *fifo = (void *)channel->parent;
+	atomic_set(&fifo->refcnt, *(u32*)data);
+	return 0;
+}
+
+static int
+nv04_sw_flip(struct nouveau_object *object, u32 mthd,
+		   void *args, u32 size)
+{
+	struct nv04_sw_chan *chan = (void *)nv_engctx(object->parent);
+	if (chan->base.flip)
+		return chan->base.flip(chan->base.flip_data);
+	return -EINVAL;
+}
+
+static struct nouveau_omthds
+nv04_sw_omthds[] = {
+	{ 0x0150, 0x0150, nv04_sw_set_ref },
+	{ 0x0500, 0x0500, nv04_sw_flip },
+	{}
+};
+
+static struct nouveau_oclass
+nv04_sw_sclass[] = {
+	{ 0x006e, &nouveau_object_ofuncs, nv04_sw_omthds },
+	{}
+};
+
+/*******************************************************************************
+ * software context
+ ******************************************************************************/
+
+static int
+nv04_sw_context_ctor(struct nouveau_object *parent,
+		      struct nouveau_object *engine,
+		      struct nouveau_oclass *oclass, void *data, u32 size,
+		      struct nouveau_object **pobject)
+{
+	struct nv04_sw_chan *chan;
+	int ret;
+
+	ret = nouveau_sw_context_create(parent, engine, oclass, &chan);
+	*pobject = nv_object(chan);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static struct nouveau_oclass
+nv04_sw_cclass = {
+	.handle = NV_ENGCTX(SW, 0x04),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nv04_sw_context_ctor,
+		.dtor = _nouveau_sw_context_dtor,
+		.init = _nouveau_sw_context_init,
+		.fini = _nouveau_sw_context_fini,
+	},
+};
+
+/*******************************************************************************
+ * software engine/subdev functions
+ ******************************************************************************/
+
+void
+nv04_sw_intr(struct nouveau_subdev *subdev)
+{
+	nv_mask(subdev, 0x000100, 0x80000000, 0x00000000);
+}
+
+static int
+nv04_sw_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	      struct nouveau_oclass *oclass, void *data, u32 size,
+	      struct nouveau_object **pobject)
+{
+	struct nv04_sw_priv *priv;
+	int ret;
+
+	ret = nouveau_sw_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	nv_engine(priv)->cclass = &nv04_sw_cclass;
+	nv_engine(priv)->sclass = nv04_sw_sclass;
+	nv_subdev(priv)->intr = nv04_sw_intr;
+	return 0;
+}
+
+struct nouveau_oclass *
+nv04_sw_oclass = &(struct nouveau_oclass) {
+	.handle = NV_ENGINE(SW, 0x04),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nv04_sw_ctor,
+		.dtor = _nouveau_sw_dtor,
+		.init = _nouveau_sw_init,
+		.fini = _nouveau_sw_fini,
+	},
+};