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 "nv50.h"
25
26 #include <core/gpuobj.h>
27 #include <engine/disp.h>
28 #include <engine/fifo/chan.h>
29 #include <subdev/bar.h>
30
31 #include <nvif/class.h>
32 #include <nvif/event.h>
33
34 /*******************************************************************************
35 * software context
36 ******************************************************************************/
37
38 static int
nv50_sw_chan_vblsem_release(struct nvkm_notify * notify)39 nv50_sw_chan_vblsem_release(struct nvkm_notify *notify)
40 {
41 struct nv50_sw_chan *chan =
42 container_of(notify, typeof(*chan), vblank.notify[notify->index]);
43 struct nvkm_sw *sw = chan->base.sw;
44 struct nvkm_device *device = sw->engine.subdev.device;
45
46 nvkm_wr32(device, 0x001704, chan->base.fifo->inst->addr >> 12);
47 nvkm_wr32(device, 0x001710, 0x80000000 | chan->vblank.ctxdma);
48 nvkm_bar_flush(device->bar);
49
50 if (device->chipset == 0x50) {
51 nvkm_wr32(device, 0x001570, chan->vblank.offset);
52 nvkm_wr32(device, 0x001574, chan->vblank.value);
53 } else {
54 nvkm_wr32(device, 0x060010, chan->vblank.offset);
55 nvkm_wr32(device, 0x060014, chan->vblank.value);
56 }
57
58 return NVKM_NOTIFY_DROP;
59 }
60
61 static bool
nv50_sw_chan_mthd(struct nvkm_sw_chan * base,int subc,u32 mthd,u32 data)62 nv50_sw_chan_mthd(struct nvkm_sw_chan *base, int subc, u32 mthd, u32 data)
63 {
64 struct nv50_sw_chan *chan = nv50_sw_chan(base);
65 struct nvkm_engine *engine = chan->base.object.engine;
66 struct nvkm_device *device = engine->subdev.device;
67 switch (mthd) {
68 case 0x018c: chan->vblank.ctxdma = data; return true;
69 case 0x0400: chan->vblank.offset = data; return true;
70 case 0x0404: chan->vblank.value = data; return true;
71 case 0x0408:
72 if (data < device->disp->vblank.index_nr) {
73 nvkm_notify_get(&chan->vblank.notify[data]);
74 return true;
75 }
76 break;
77 default:
78 break;
79 }
80 return false;
81 }
82
83 void *
nv50_sw_chan_dtor(struct nvkm_sw_chan * base)84 nv50_sw_chan_dtor(struct nvkm_sw_chan *base)
85 {
86 struct nv50_sw_chan *chan = nv50_sw_chan(base);
87 int i;
88 for (i = 0; i < ARRAY_SIZE(chan->vblank.notify); i++)
89 nvkm_notify_fini(&chan->vblank.notify[i]);
90 return chan;
91 }
92
93 static const struct nvkm_sw_chan_func
94 nv50_sw_chan = {
95 .dtor = nv50_sw_chan_dtor,
96 .mthd = nv50_sw_chan_mthd,
97 };
98
99 static int
nv50_sw_chan_new(struct nvkm_sw * sw,struct nvkm_fifo_chan * fifoch,const struct nvkm_oclass * oclass,struct nvkm_object ** pobject)100 nv50_sw_chan_new(struct nvkm_sw *sw, struct nvkm_fifo_chan *fifoch,
101 const struct nvkm_oclass *oclass, struct nvkm_object **pobject)
102 {
103 struct nvkm_disp *disp = sw->engine.subdev.device->disp;
104 struct nv50_sw_chan *chan;
105 int ret, i;
106
107 if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
108 return -ENOMEM;
109 *pobject = &chan->base.object;
110
111 ret = nvkm_sw_chan_ctor(&nv50_sw_chan, sw, fifoch, oclass, &chan->base);
112 if (ret)
113 return ret;
114
115 for (i = 0; disp && i < disp->vblank.index_nr; i++) {
116 ret = nvkm_notify_init(NULL, &disp->vblank,
117 nv50_sw_chan_vblsem_release, false,
118 &(struct nvif_notify_head_req_v0) {
119 .head = i,
120 },
121 sizeof(struct nvif_notify_head_req_v0),
122 sizeof(struct nvif_notify_head_rep_v0),
123 &chan->vblank.notify[i]);
124 if (ret)
125 return ret;
126 }
127
128 return 0;
129 }
130
131 /*******************************************************************************
132 * software engine/subdev functions
133 ******************************************************************************/
134
135 static const struct nvkm_sw_func
136 nv50_sw = {
137 .chan_new = nv50_sw_chan_new,
138 .sclass = {
139 { nvkm_nvsw_new, { -1, -1, NVIF_CLASS_SW_NV50 } },
140 {}
141 }
142 };
143
144 int
nv50_sw_new(struct nvkm_device * device,int index,struct nvkm_sw ** psw)145 nv50_sw_new(struct nvkm_device *device, int index, struct nvkm_sw **psw)
146 {
147 return nvkm_sw_new_(&nv50_sw, device, index, psw);
148 }
149
