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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
/*
* Copyright 2010 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 "drmP.h"
#include "nouveau_drv.h"
#include "nouveau_pm.h"
static int
nouveau_pm_perflvl_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
int ret;
if (!pm->clock_get)
return -EINVAL;
memset(perflvl, 0, sizeof(*perflvl));
ret = pm->clock_get(dev, PLL_CORE);
if (ret > 0)
perflvl->core = ret;
ret = pm->clock_get(dev, PLL_MEMORY);
if (ret > 0)
perflvl->memory = ret;
ret = pm->clock_get(dev, PLL_SHADER);
if (ret > 0)
perflvl->shader = ret;
ret = pm->clock_get(dev, PLL_UNK05);
if (ret > 0)
perflvl->unk05 = ret;
if (pm->voltage.supported && pm->voltage_get) {
ret = pm->voltage_get(dev);
if (ret > 0)
perflvl->voltage = ret;
}
return 0;
}
static void
nouveau_pm_perflvl_info(struct nouveau_pm_level *perflvl, char *ptr, int len)
{
char s[16], v[16], f[16];
s[0] = '\0';
if (perflvl->shader)
snprintf(s, sizeof(s), " shader %dMHz", perflvl->shader / 1000);
v[0] = '\0';
if (perflvl->voltage)
snprintf(v, sizeof(v), " voltage %dmV", perflvl->voltage * 10);
f[0] = '\0';
if (perflvl->fanspeed)
snprintf(f, sizeof(f), " fanspeed %d%%", perflvl->fanspeed);
snprintf(ptr, len, "core %dMHz memory %dMHz%s%s%s\n",
perflvl->core / 1000, perflvl->memory / 1000, s, v, f);
}
static ssize_t
nouveau_pm_get_perflvl_info(struct device *d,
struct device_attribute *a, char *buf)
{
struct nouveau_pm_level *perflvl = (struct nouveau_pm_level *)a;
char *ptr = buf;
int len = PAGE_SIZE;
snprintf(ptr, len, "%d: ", perflvl->id);
ptr += strlen(buf);
len -= strlen(buf);
nouveau_pm_perflvl_info(perflvl, ptr, len);
return strlen(buf);
}
static ssize_t
nouveau_pm_get_perflvl(struct device *d, struct device_attribute *a, char *buf)
{
struct drm_device *dev = pci_get_drvdata(to_pci_dev(d));
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
struct nouveau_pm_level cur;
int len = PAGE_SIZE, ret;
char *ptr = buf;
if (!pm->cur)
snprintf(ptr, len, "setting: boot\n");
else if (pm->cur == &pm->boot)
snprintf(ptr, len, "setting: boot\nc: ");
else
snprintf(ptr, len, "setting: static %d\nc: ", pm->cur->id);
ptr += strlen(buf);
len -= strlen(buf);
ret = nouveau_pm_perflvl_get(dev, &cur);
if (ret == 0)
nouveau_pm_perflvl_info(&cur, ptr, len);
return strlen(buf);
}
static ssize_t
nouveau_pm_set_perflvl(struct device *d, struct device_attribute *a,
const char *buf, size_t count)
{
return -EPERM;
}
DEVICE_ATTR(performance_level, S_IRUGO | S_IWUSR,
nouveau_pm_get_perflvl, nouveau_pm_set_perflvl);
int
nouveau_pm_init(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
struct device *d = &dev->pdev->dev;
char info[256];
int ret, i;
nouveau_volt_init(dev);
nouveau_perf_init(dev);
NV_INFO(dev, "%d available performance level(s)\n", pm->nr_perflvl);
for (i = 0; i < pm->nr_perflvl; i++) {
nouveau_pm_perflvl_info(&pm->perflvl[i], info, sizeof(info));
NV_INFO(dev, "%d: %s", pm->perflvl[i].id, info);
}
/* determine current ("boot") performance level */
ret = nouveau_pm_perflvl_get(dev, &pm->boot);
if (ret == 0) {
pm->cur = &pm->boot;
nouveau_pm_perflvl_info(&pm->boot, info, sizeof(info));
NV_INFO(dev, "c: %s", info);
}
/* initialise sysfs */
ret = device_create_file(d, &dev_attr_performance_level);
if (ret)
return ret;
for (i = 0; i < pm->nr_perflvl; i++) {
struct nouveau_pm_level *perflvl = &pm->perflvl[i];
perflvl->dev_attr.attr.name = perflvl->name;
perflvl->dev_attr.attr.mode = S_IRUGO;
perflvl->dev_attr.show = nouveau_pm_get_perflvl_info;
perflvl->dev_attr.store = NULL;
sysfs_attr_init(&perflvl->dev_attr.attr);
ret = device_create_file(d, &perflvl->dev_attr);
if (ret) {
NV_ERROR(dev, "failed pervlvl %d sysfs: %d\n",
perflvl->id, i);
perflvl->dev_attr.attr.name = NULL;
nouveau_pm_fini(dev);
return ret;
}
}
return 0;
}
void
nouveau_pm_fini(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
struct device *d = &dev->pdev->dev;
int i;
device_remove_file(d, &dev_attr_performance_level);
for (i = 0; i < pm->nr_perflvl; i++) {
struct nouveau_pm_level *pl = &pm->perflvl[i];
if (!pl->dev_attr.attr.name)
break;
device_remove_file(d, &pl->dev_attr);
}
nouveau_perf_fini(dev);
nouveau_volt_fini(dev);
}
|
