1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/*
* Copyright 2014 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 <subdev/fb.h>
#include <subdev/timer.h>
#include "gf100.h"
static void
gm107_ltcg_lts_isr(struct gf100_ltcg_priv *priv, int ltc, int lts)
{
u32 base = 0x140000 + (ltc * 0x2000) + (lts * 0x400);
u32 stat = nv_rd32(priv, base + 0x00c);
if (stat) {
nv_info(priv, "LTC%d_LTS%d: 0x%08x\n", ltc, lts, stat);
nv_wr32(priv, base + 0x00c, stat);
}
}
static void
gm107_ltcg_intr(struct nouveau_subdev *subdev)
{
struct gf100_ltcg_priv *priv = (void *)subdev;
u32 mask;
mask = nv_rd32(priv, 0x00017c);
while (mask) {
u32 lts, ltc = __ffs(mask);
for (lts = 0; lts < priv->lts_nr; lts++)
gm107_ltcg_lts_isr(priv, ltc, lts);
mask &= ~(1 << ltc);
}
/* we do something horribly wrong and upset PMFB a lot, so mask off
* interrupts from it after the first one until it's fixed
*/
nv_mask(priv, 0x000640, 0x02000000, 0x00000000);
}
static void
gm107_ltcg_tags_clear(struct nouveau_ltcg *ltcg, u32 first, u32 count)
{
struct gf100_ltcg_priv *priv = (struct gf100_ltcg_priv *)ltcg;
u32 last = first + count - 1;
int p, i;
BUG_ON((first > last) || (last >= priv->num_tags));
nv_wr32(priv, 0x17e270, first);
nv_wr32(priv, 0x17e274, last);
nv_wr32(priv, 0x17e26c, 0x4); /* trigger clear */
/* wait until it's finished with clearing */
for (p = 0; p < priv->ltc_nr; ++p) {
for (i = 0; i < priv->lts_nr; ++i)
nv_wait(priv, 0x14046c + p * 0x2000 + i * 0x200, ~0, 0);
}
}
static int
gm107_ltcg_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
struct nouveau_oclass *oclass, void *data, u32 size,
struct nouveau_object **pobject)
{
struct gf100_ltcg_priv *priv;
struct nouveau_fb *pfb = nouveau_fb(parent);
u32 parts, mask;
int ret, i;
ret = nouveau_ltcg_create(parent, engine, oclass, &priv);
*pobject = nv_object(priv);
if (ret)
return ret;
parts = nv_rd32(priv, 0x022438);
mask = nv_rd32(priv, 0x021c14);
for (i = 0; i < parts; i++) {
if (!(mask & (1 << i)))
priv->ltc_nr++;
}
priv->lts_nr = nv_rd32(priv, 0x17e280) >> 28;
ret = gf100_ltcg_init_tag_ram(pfb, priv);
if (ret)
return ret;
priv->base.tags_alloc = gf100_ltcg_tags_alloc;
priv->base.tags_free = gf100_ltcg_tags_free;
priv->base.tags_clear = gm107_ltcg_tags_clear;
nv_subdev(priv)->intr = gm107_ltcg_intr;
return 0;
}
static int
gm107_ltcg_init(struct nouveau_object *object)
{
struct nouveau_ltcg *ltcg = (struct nouveau_ltcg *)object;
struct gf100_ltcg_priv *priv = (struct gf100_ltcg_priv *)ltcg;
u32 lpg128 = !(nv_rd32(priv, 0x100c80) & 0x00000001);
int ret;
ret = nouveau_ltcg_init(ltcg);
if (ret)
return ret;
nv_wr32(priv, 0x17e27c, priv->ltc_nr);
nv_wr32(priv, 0x17e278, priv->tag_base);
nv_mask(priv, 0x17e264, 0x00000002, lpg128 ? 0x00000002 : 0x00000000);
return 0;
}
struct nouveau_oclass *
gm107_ltcg_oclass = &(struct nouveau_oclass) {
.handle = NV_SUBDEV(LTCG, 0xff),
.ofuncs = &(struct nouveau_ofuncs) {
.ctor = gm107_ltcg_ctor,
.dtor = gf100_ltcg_dtor,
.init = gm107_ltcg_init,
.fini = _nouveau_ltcg_fini,
},
};
|
