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
25 #include <core/os.h>
26 #include <core/class.h>
27 #include <core/engctx.h>
28
29 #include <engine/software.h>
30 #include <engine/fifo.h>
31
32 struct nv04_software_priv {
33 struct nouveau_software base;
34 };
35
36 struct nv04_software_chan {
37 struct nouveau_software_chan base;
38 };
39
40 /*******************************************************************************
41 * software object classes
42 ******************************************************************************/
43
44 static int
nv04_software_set_ref(struct nouveau_object * object,u32 mthd,void * data,u32 size)45 nv04_software_set_ref(struct nouveau_object *object, u32 mthd,
46 void *data, u32 size)
47 {
48 struct nouveau_object *channel = (void *)nv_engctx(object->parent);
49 struct nouveau_fifo_chan *fifo = (void *)channel->parent;
50 atomic_set(&fifo->refcnt, *(u32*)data);
51 return 0;
52 }
53
54 static int
nv04_software_flip(struct nouveau_object * object,u32 mthd,void * args,u32 size)55 nv04_software_flip(struct nouveau_object *object, u32 mthd,
56 void *args, u32 size)
57 {
58 struct nv04_software_chan *chan = (void *)nv_engctx(object->parent);
59 if (chan->base.flip)
60 return chan->base.flip(chan->base.flip_data);
61 return -EINVAL;
62 }
63
64 static struct nouveau_omthds
65 nv04_software_omthds[] = {
66 { 0x0150, 0x0150, nv04_software_set_ref },
67 { 0x0500, 0x0500, nv04_software_flip },
68 {}
69 };
70
71 static struct nouveau_oclass
72 nv04_software_sclass[] = {
73 { 0x006e, &nouveau_object_ofuncs, nv04_software_omthds },
74 {}
75 };
76
77 /*******************************************************************************
78 * software context
79 ******************************************************************************/
80
81 static int
nv04_software_context_ctor(struct nouveau_object * parent,struct nouveau_object * engine,struct nouveau_oclass * oclass,void * data,u32 size,struct nouveau_object ** pobject)82 nv04_software_context_ctor(struct nouveau_object *parent,
83 struct nouveau_object *engine,
84 struct nouveau_oclass *oclass, void *data, u32 size,
85 struct nouveau_object **pobject)
86 {
87 struct nv04_software_chan *chan;
88 int ret;
89
90 ret = nouveau_software_context_create(parent, engine, oclass, &chan);
91 *pobject = nv_object(chan);
92 if (ret)
93 return ret;
94
95 return 0;
96 }
97
98 static struct nouveau_oclass
99 nv04_software_cclass = {
100 .handle = NV_ENGCTX(SW, 0x04),
101 .ofuncs = &(struct nouveau_ofuncs) {
102 .ctor = nv04_software_context_ctor,
103 .dtor = _nouveau_software_context_dtor,
104 .init = _nouveau_software_context_init,
105 .fini = _nouveau_software_context_fini,
106 },
107 };
108
109 /*******************************************************************************
110 * software engine/subdev functions
111 ******************************************************************************/
112
113 void
nv04_software_intr(struct nouveau_subdev * subdev)114 nv04_software_intr(struct nouveau_subdev *subdev)
115 {
116 nv_mask(subdev, 0x000100, 0x80000000, 0x00000000);
117 }
118
119 static int
nv04_software_ctor(struct nouveau_object * parent,struct nouveau_object * engine,struct nouveau_oclass * oclass,void * data,u32 size,struct nouveau_object ** pobject)120 nv04_software_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
121 struct nouveau_oclass *oclass, void *data, u32 size,
122 struct nouveau_object **pobject)
123 {
124 struct nv04_software_priv *priv;
125 int ret;
126
127 ret = nouveau_software_create(parent, engine, oclass, &priv);
128 *pobject = nv_object(priv);
129 if (ret)
130 return ret;
131
132 nv_engine(priv)->cclass = &nv04_software_cclass;
133 nv_engine(priv)->sclass = nv04_software_sclass;
134 nv_subdev(priv)->intr = nv04_software_intr;
135 return 0;
136 }
137
138 struct nouveau_oclass
139 nv04_software_oclass = {
140 .handle = NV_ENGINE(SW, 0x04),
141 .ofuncs = &(struct nouveau_ofuncs) {
142 .ctor = nv04_software_ctor,
143 .dtor = _nouveau_software_dtor,
144 .init = _nouveau_software_init,
145 .fini = _nouveau_software_fini,
146 },
147 };
148