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
27 struct nv04_sw_priv {
28 struct nvkm_sw base;
29 };
30
31 struct nv04_sw_chan {
32 struct nvkm_sw_chan base;
33 };
34
35 /*******************************************************************************
36 * software object classes
37 ******************************************************************************/
38
39 static int
nv04_sw_set_ref(struct nvkm_object * object,u32 mthd,void * data,u32 size)40 nv04_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
48 static int
nv04_sw_flip(struct nvkm_object * object,u32 mthd,void * args,u32 size)49 nv04_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
57 static struct nvkm_omthds
58 nv04_sw_omthds[] = {
59 { 0x0150, 0x0150, nv04_sw_set_ref },
60 { 0x0500, 0x0500, nv04_sw_flip },
61 {}
62 };
63
64 static struct nvkm_oclass
65 nv04_sw_sclass[] = {
66 { 0x006e, &nvkm_object_ofuncs, nv04_sw_omthds },
67 {}
68 };
69
70 /*******************************************************************************
71 * software context
72 ******************************************************************************/
73
74 static int
nv04_sw_context_ctor(struct nvkm_object * parent,struct nvkm_object * engine,struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_object ** pobject)75 nv04_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
90 static struct nvkm_oclass
91 nv04_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
105 void
nv04_sw_intr(struct nvkm_subdev * subdev)106 nv04_sw_intr(struct nvkm_subdev *subdev)
107 {
108 nv_mask(subdev, 0x000100, 0x80000000, 0x00000000);
109 }
110
111 static int
nv04_sw_ctor(struct nvkm_object * parent,struct nvkm_object * engine,struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_object ** pobject)112 nv04_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
130 struct nvkm_oclass *
131 nv04_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