1 files changed, 234 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/sw/nv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/sw/nv50.c
new file mode 100644
index 000000000000..401fcd73086b
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/sw/nv50.c
@@ -0,0 +1,234 @@
+/*
+ * 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 "nv50.h"
+
+#include <core/device.h>
+#include <core/handle.h>
+#include <core/namedb.h>
+#include <engine/disp.h>
+#include <subdev/bar.h>
+
+#include <nvif/event.h>
+
+/*******************************************************************************
+ * software object classes
+ ******************************************************************************/
+
+static int
+nv50_sw_mthd_dma_vblsem(struct nvkm_object *object, u32 mthd,
+			void *args, u32 size)
+{
+	struct nv50_sw_chan *chan = (void *)nv_engctx(object->parent);
+	struct nvkm_fifo_chan *fifo = (void *)nv_object(chan)->parent;
+	struct nvkm_handle *handle;
+	int ret = -EINVAL;
+
+	handle = nvkm_namedb_get(nv_namedb(fifo), *(u32 *)args);
+	if (!handle)
+		return -ENOENT;
+
+	if (nv_iclass(handle->object, NV_GPUOBJ_CLASS)) {
+		struct nvkm_gpuobj *gpuobj = nv_gpuobj(handle->object);
+		chan->vblank.ctxdma = gpuobj->node->offset >> 4;
+		ret = 0;
+	}
+	nvkm_namedb_put(handle);
+	return ret;
+}
+
+static int
+nv50_sw_mthd_vblsem_offset(struct nvkm_object *object, u32 mthd,
+			   void *args, u32 size)
+{
+	struct nv50_sw_chan *chan = (void *)nv_engctx(object->parent);
+	chan->vblank.offset = *(u32 *)args;
+	return 0;
+}
+
+int
+nv50_sw_mthd_vblsem_value(struct nvkm_object *object, u32 mthd,
+			  void *args, u32 size)
+{
+	struct nv50_sw_chan *chan = (void *)nv_engctx(object->parent);
+	chan->vblank.value = *(u32 *)args;
+	return 0;
+}
+
+int
+nv50_sw_mthd_vblsem_release(struct nvkm_object *object, u32 mthd,
+			    void *args, u32 size)
+{
+	struct nv50_sw_chan *chan = (void *)nv_engctx(object->parent);
+	u32 head = *(u32 *)args;
+	if (head >= nvkm_disp(chan)->vblank.index_nr)
+		return -EINVAL;
+
+	nvkm_notify_get(&chan->vblank.notify[head]);
+	return 0;
+}
+
+int
+nv50_sw_mthd_flip(struct nvkm_object *object, u32 mthd, void *args, u32 size)
+{
+	struct nv50_sw_chan *chan = (void *)nv_engctx(object->parent);
+	if (chan->base.flip)
+		return chan->base.flip(chan->base.flip_data);
+	return -EINVAL;
+}
+
+static struct nvkm_omthds
+nv50_sw_omthds[] = {
+	{ 0x018c, 0x018c, nv50_sw_mthd_dma_vblsem },
+	{ 0x0400, 0x0400, nv50_sw_mthd_vblsem_offset },
+	{ 0x0404, 0x0404, nv50_sw_mthd_vblsem_value },
+	{ 0x0408, 0x0408, nv50_sw_mthd_vblsem_release },
+	{ 0x0500, 0x0500, nv50_sw_mthd_flip },
+	{}
+};
+
+static struct nvkm_oclass
+nv50_sw_sclass[] = {
+	{ 0x506e, &nvkm_object_ofuncs, nv50_sw_omthds },
+	{}
+};
+
+/*******************************************************************************
+ * software context
+ ******************************************************************************/
+
+static int
+nv50_sw_vblsem_release(struct nvkm_notify *notify)
+{
+	struct nv50_sw_chan *chan =
+		container_of(notify, typeof(*chan), vblank.notify[notify->index]);
+	struct nv50_sw_priv *priv = (void *)nv_object(chan)->engine;
+	struct nvkm_bar *bar = nvkm_bar(priv);
+
+	nv_wr32(priv, 0x001704, chan->vblank.channel);
+	nv_wr32(priv, 0x001710, 0x80000000 | chan->vblank.ctxdma);
+	bar->flush(bar);
+
+	if (nv_device(priv)->chipset == 0x50) {
+		nv_wr32(priv, 0x001570, chan->vblank.offset);
+		nv_wr32(priv, 0x001574, chan->vblank.value);
+	} else {
+		nv_wr32(priv, 0x060010, chan->vblank.offset);
+		nv_wr32(priv, 0x060014, chan->vblank.value);
+	}
+
+	return NVKM_NOTIFY_DROP;
+}
+
+void
+nv50_sw_context_dtor(struct nvkm_object *object)
+{
+	struct nv50_sw_chan *chan = (void *)object;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(chan->vblank.notify); i++)
+		nvkm_notify_fini(&chan->vblank.notify[i]);
+
+	nvkm_sw_context_destroy(&chan->base);
+}
+
+int
+nv50_sw_context_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+		     struct nvkm_oclass *oclass, void *data, u32 size,
+		     struct nvkm_object **pobject)
+{
+	struct nvkm_disp *pdisp = nvkm_disp(parent);
+	struct nv50_sw_cclass *pclass = (void *)oclass;
+	struct nv50_sw_chan *chan;
+	int ret, i;
+
+	ret = nvkm_sw_context_create(parent, engine, oclass, &chan);
+	*pobject = nv_object(chan);
+	if (ret)
+		return ret;
+
+	for (i = 0; pdisp && i < pdisp->vblank.index_nr; i++) {
+		ret = nvkm_notify_init(NULL, &pdisp->vblank, pclass->vblank,
+				       false,
+				       &(struct nvif_notify_head_req_v0) {
+					.head = i,
+				       },
+				       sizeof(struct nvif_notify_head_req_v0),
+				       sizeof(struct nvif_notify_head_rep_v0),
+				       &chan->vblank.notify[i]);
+		if (ret)
+			return ret;
+	}
+
+	chan->vblank.channel = nv_gpuobj(parent->parent)->addr >> 12;
+	return 0;
+}
+
+static struct nv50_sw_cclass
+nv50_sw_cclass = {
+	.base.handle = NV_ENGCTX(SW, 0x50),
+	.base.ofuncs = &(struct nvkm_ofuncs) {
+		.ctor = nv50_sw_context_ctor,
+		.dtor = nv50_sw_context_dtor,
+		.init = _nvkm_sw_context_init,
+		.fini = _nvkm_sw_context_fini,
+	},
+	.vblank = nv50_sw_vblsem_release,
+};
+
+/*******************************************************************************
+ * software engine/subdev functions
+ ******************************************************************************/
+
+int
+nv50_sw_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+	     struct nvkm_oclass *oclass, void *data, u32 size,
+	     struct nvkm_object **pobject)
+{
+	struct nv50_sw_oclass *pclass = (void *)oclass;
+	struct nv50_sw_priv *priv;
+	int ret;
+
+	ret = nvkm_sw_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	nv_engine(priv)->cclass = pclass->cclass;
+	nv_engine(priv)->sclass = pclass->sclass;
+	nv_subdev(priv)->intr = nv04_sw_intr;
+	return 0;
+}
+
+struct nvkm_oclass *
+nv50_sw_oclass = &(struct nv50_sw_oclass) {
+	.base.handle = NV_ENGINE(SW, 0x50),
+	.base.ofuncs = &(struct nvkm_ofuncs) {
+		.ctor = nv50_sw_ctor,
+		.dtor = _nvkm_sw_dtor,
+		.init = _nvkm_sw_init,
+		.fini = _nvkm_sw_fini,
+	},
+	.cclass = &nv50_sw_cclass.base,
+	.sclass =  nv50_sw_sclass,
+}.base;