1/*
2 * Copyright 2012 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: Ben Skeggs
23 */
24#include <engine/sw.h>
25#include <engine/fifo.h>
26
27struct nv04_sw_priv {
28	struct nvkm_sw base;
29};
30
31struct nv04_sw_chan {
32	struct nvkm_sw_chan base;
33};
34
35/*******************************************************************************
36 * software object classes
37 ******************************************************************************/
38
39static int
40nv04_sw_set_ref(struct nvkm_object *object, u32 mthd, void *data, u32 size)
41{
42	struct nvkm_object *channel = (void *)nv_engctx(object->parent);
43	struct nvkm_fifo_chan *fifo = (void *)channel->parent;
44	atomic_set(&fifo->refcnt, *(u32*)data);
45	return 0;
46}
47
48static int
49nv04_sw_flip(struct nvkm_object *object, u32 mthd, void *args, u32 size)
50{
51	struct nv04_sw_chan *chan = (void *)nv_engctx(object->parent);
52	if (chan->base.flip)
53		return chan->base.flip(chan->base.flip_data);
54	return -EINVAL;
55}
56
57static struct nvkm_omthds
58nv04_sw_omthds[] = {
59	{ 0x0150, 0x0150, nv04_sw_set_ref },
60	{ 0x0500, 0x0500, nv04_sw_flip },
61	{}
62};
63
64static struct nvkm_oclass
65nv04_sw_sclass[] = {
66	{ 0x006e, &nvkm_object_ofuncs, nv04_sw_omthds },
67	{}
68};
69
70/*******************************************************************************
71 * software context
72 ******************************************************************************/
73
74static int
75nv04_sw_context_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
76		     struct nvkm_oclass *oclass, void *data, u32 size,
77		     struct nvkm_object **pobject)
78{
79	struct nv04_sw_chan *chan;
80	int ret;
81
82	ret = nvkm_sw_context_create(parent, engine, oclass, &chan);
83	*pobject = nv_object(chan);
84	if (ret)
85		return ret;
86
87	return 0;
88}
89
90static struct nvkm_oclass
91nv04_sw_cclass = {
92	.handle = NV_ENGCTX(SW, 0x04),
93	.ofuncs = &(struct nvkm_ofuncs) {
94		.ctor = nv04_sw_context_ctor,
95		.dtor = _nvkm_sw_context_dtor,
96		.init = _nvkm_sw_context_init,
97		.fini = _nvkm_sw_context_fini,
98	},
99};
100
101/*******************************************************************************
102 * software engine/subdev functions
103 ******************************************************************************/
104
105void
106nv04_sw_intr(struct nvkm_subdev *subdev)
107{
108	nv_mask(subdev, 0x000100, 0x80000000, 0x00000000);
109}
110
111static int
112nv04_sw_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
113	     struct nvkm_oclass *oclass, void *data, u32 size,
114	     struct nvkm_object **pobject)
115{
116	struct nv04_sw_priv *priv;
117	int ret;
118
119	ret = nvkm_sw_create(parent, engine, oclass, &priv);
120	*pobject = nv_object(priv);
121	if (ret)
122		return ret;
123
124	nv_engine(priv)->cclass = &nv04_sw_cclass;
125	nv_engine(priv)->sclass = nv04_sw_sclass;
126	nv_subdev(priv)->intr = nv04_sw_intr;
127	return 0;
128}
129
130struct nvkm_oclass *
131nv04_sw_oclass = &(struct nvkm_oclass) {
132	.handle = NV_ENGINE(SW, 0x04),
133	.ofuncs = &(struct nvkm_ofuncs) {
134		.ctor = nv04_sw_ctor,
135		.dtor = _nvkm_sw_dtor,
136		.init = _nvkm_sw_init,
137		.fini = _nvkm_sw_fini,
138	},
139};
140