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
|
/*
* Copyright 2013 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 <bskeggs@redhat.com>
*/
#include "ctrl.h"
#include <core/client.h>
#include <subdev/clk.h>
#include <nvif/class.h>
#include <nvif/ioctl.h>
#include <nvif/unpack.h>
static int
nvkm_control_mthd_pstate_info(struct nvkm_control *ctrl, void *data, u32 size)
{
union {
struct nvif_control_pstate_info_v0 v0;
} *args = data;
struct nvkm_clk *clk = ctrl->device->clk;
int ret;
nvif_ioctl(&ctrl->object, "control pstate info size %d\n", size);
if (nvif_unpack(args->v0, 0, 0, false)) {
nvif_ioctl(&ctrl->object, "control pstate info vers %d\n",
args->v0.version);
} else
return ret;
if (clk) {
args->v0.count = clk->state_nr;
args->v0.ustate_ac = clk->ustate_ac;
args->v0.ustate_dc = clk->ustate_dc;
args->v0.pwrsrc = clk->pwrsrc;
args->v0.pstate = clk->pstate;
} else {
args->v0.count = 0;
args->v0.ustate_ac = NVIF_CONTROL_PSTATE_INFO_V0_USTATE_DISABLE;
args->v0.ustate_dc = NVIF_CONTROL_PSTATE_INFO_V0_USTATE_DISABLE;
args->v0.pwrsrc = -ENOSYS;
args->v0.pstate = NVIF_CONTROL_PSTATE_INFO_V0_PSTATE_UNKNOWN;
}
return 0;
}
static int
nvkm_control_mthd_pstate_attr(struct nvkm_control *ctrl, void *data, u32 size)
{
union {
struct nvif_control_pstate_attr_v0 v0;
} *args = data;
struct nvkm_clk *clk = ctrl->device->clk;
const struct nvkm_domain *domain;
struct nvkm_pstate *pstate;
struct nvkm_cstate *cstate;
int i = 0, j = -1;
u32 lo, hi;
int ret;
nvif_ioctl(&ctrl->object, "control pstate attr size %d\n", size);
if (nvif_unpack(args->v0, 0, 0, false)) {
nvif_ioctl(&ctrl->object,
"control pstate attr vers %d state %d index %d\n",
args->v0.version, args->v0.state, args->v0.index);
if (!clk)
return -ENODEV;
if (args->v0.state < NVIF_CONTROL_PSTATE_ATTR_V0_STATE_CURRENT)
return -EINVAL;
if (args->v0.state >= clk->state_nr)
return -EINVAL;
} else
return ret;
domain = clk->domains;
while (domain->name != nv_clk_src_max) {
if (domain->mname && ++j == args->v0.index)
break;
domain++;
}
if (domain->name == nv_clk_src_max)
return -EINVAL;
if (args->v0.state != NVIF_CONTROL_PSTATE_ATTR_V0_STATE_CURRENT) {
list_for_each_entry(pstate, &clk->states, head) {
if (i++ == args->v0.state)
break;
}
lo = pstate->base.domain[domain->name];
hi = lo;
list_for_each_entry(cstate, &pstate->list, head) {
lo = min(lo, cstate->domain[domain->name]);
hi = max(hi, cstate->domain[domain->name]);
}
args->v0.state = pstate->pstate;
} else {
lo = max(nvkm_clk_read(clk, domain->name), 0);
hi = lo;
}
snprintf(args->v0.name, sizeof(args->v0.name), "%s", domain->mname);
snprintf(args->v0.unit, sizeof(args->v0.unit), "MHz");
args->v0.min = lo / domain->mdiv;
args->v0.max = hi / domain->mdiv;
args->v0.index = 0;
while ((++domain)->name != nv_clk_src_max) {
if (domain->mname) {
args->v0.index = ++j;
break;
}
}
return 0;
}
static int
nvkm_control_mthd_pstate_user(struct nvkm_control *ctrl, void *data, u32 size)
{
union {
struct nvif_control_pstate_user_v0 v0;
} *args = data;
struct nvkm_clk *clk = ctrl->device->clk;
int ret;
nvif_ioctl(&ctrl->object, "control pstate user size %d\n", size);
if (nvif_unpack(args->v0, 0, 0, false)) {
nvif_ioctl(&ctrl->object,
"control pstate user vers %d ustate %d pwrsrc %d\n",
args->v0.version, args->v0.ustate, args->v0.pwrsrc);
if (!clk)
return -ENODEV;
} else
return ret;
if (args->v0.pwrsrc >= 0) {
ret |= nvkm_clk_ustate(clk, args->v0.ustate, args->v0.pwrsrc);
} else {
ret |= nvkm_clk_ustate(clk, args->v0.ustate, 0);
ret |= nvkm_clk_ustate(clk, args->v0.ustate, 1);
}
return ret;
}
static int
nvkm_control_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
{
struct nvkm_control *ctrl = nvkm_control(object);
switch (mthd) {
case NVIF_CONTROL_PSTATE_INFO:
return nvkm_control_mthd_pstate_info(ctrl, data, size);
case NVIF_CONTROL_PSTATE_ATTR:
return nvkm_control_mthd_pstate_attr(ctrl, data, size);
case NVIF_CONTROL_PSTATE_USER:
return nvkm_control_mthd_pstate_user(ctrl, data, size);
default:
break;
}
return -EINVAL;
}
static const struct nvkm_object_func
nvkm_control = {
.mthd = nvkm_control_mthd,
};
static int
nvkm_control_new(struct nvkm_device *device, const struct nvkm_oclass *oclass,
void *data, u32 size, struct nvkm_object **pobject)
{
struct nvkm_control *ctrl;
if (!(ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL)))
return -ENOMEM;
*pobject = &ctrl->object;
ctrl->device = device;
nvkm_object_ctor(&nvkm_control, oclass, &ctrl->object);
return 0;
}
const struct nvkm_device_oclass
nvkm_control_oclass = {
.base.oclass = NVIF_IOCTL_NEW_V0_CONTROL,
.base.minver = -1,
.base.maxver = -1,
.ctor = nvkm_control_new,
};
|
