Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
PM: EM: Rename em.yaml to dev-energymodel.yaml
The EM YNL specification used many acronyms, including ‘em’, ‘pd’,
‘ps’, etc. While the acronyms are short and convenient, they could be
confusing. So, let’s spell them out to be more specific. The following
changes were made in the spec. Note that the protocol name cannot exceed
GENL_NAMSIZ (16).
em -> dev-energymodel
pds -> perf-domains
pd -> perf-domain
pd-id -> perf-domain-id
pd-table -> perf-table
ps -> perf-state
get-pds -> get-perf-domains
get-pd-table -> get-perf-table
pd-created -> perf-domain-created
pd-updated -> perf-domain-updated
pd-deleted -> perf-domain-deleted
In addition. doc strings were added to the spec. based on the comments in
energy_model.h. Two flag attributes (perf-state-flags and
perf-domain-flags) were added for easily interpreting the bit flags.
Finally, the autogenerated files and em_netlink.c were updated accordingly
to reflect the name changes.
Suggested-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Signed-off-by: Changwoo Min <changwoo@igalia.com>
Link: https://patch.msgid.link/20260108053212.642478-3-changwoo@igalia.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
authored by
Changwoo Min
and committed by
Rafael J. Wysocki
caa07a81
ebabc32d
+384
-266
+175
Documentation/netlink/specs/dev-energymodel.yaml
+175
Documentation/netlink/specs/dev-energymodel.yaml
···
1
+
# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
2
+
#
3
+
# Copyright (c) 2025 Valve Corporation.
4
+
#
5
+
---
6
+
name: dev-energymodel
7
+
8
+
doc: |
9
+
Energy model netlink interface to notify its changes.
10
+
11
+
protocol: genetlink
12
+
13
+
uapi-header: linux/dev_energymodel.h
14
+
15
+
definitions:
16
+
-
17
+
type: flags
18
+
name: perf-state-flags
19
+
entries:
20
+
-
21
+
name: perf-state-inefficient
22
+
doc: >-
23
+
The performance state is inefficient. There is in this perf-domain,
24
+
another performance state with a higher frequency but a lower or
25
+
equal power cost.
26
+
-
27
+
type: flags
28
+
name: perf-domain-flags
29
+
entries:
30
+
-
31
+
name: perf-domain-microwatts
32
+
doc: >-
33
+
The power values are in micro-Watts or some other scale.
34
+
-
35
+
name: perf-domain-skip-inefficiencies
36
+
doc: >-
37
+
Skip inefficient states when estimating energy consumption.
38
+
-
39
+
name: perf-domain-artificial
40
+
doc: >-
41
+
The power values are artificial and might be created by platform
42
+
missing real power information.
43
+
44
+
attribute-sets:
45
+
-
46
+
name: perf-domains
47
+
doc: >-
48
+
Information on all the performance domains.
49
+
attributes:
50
+
-
51
+
name: perf-domain
52
+
type: nest
53
+
nested-attributes: perf-domain
54
+
multi-attr: true
55
+
-
56
+
name: perf-domain
57
+
doc: >-
58
+
Information on a single performance domains.
59
+
attributes:
60
+
-
61
+
name: pad
62
+
type: pad
63
+
-
64
+
name: perf-domain-id
65
+
type: u32
66
+
doc: >-
67
+
A unique ID number for each performance domain.
68
+
-
69
+
name: flags
70
+
type: u64
71
+
doc: >-
72
+
Bitmask of performance domain flags.
73
+
enum: perf-domain-flags
74
+
-
75
+
name: cpus
76
+
type: string
77
+
doc: >-
78
+
CPUs that belong to this performance domain.
79
+
-
80
+
name: perf-table
81
+
doc: >-
82
+
Performance states table.
83
+
attributes:
84
+
-
85
+
name: perf-domain-id
86
+
type: u32
87
+
doc: >-
88
+
A unique ID number for each performance domain.
89
+
-
90
+
name: perf-state
91
+
type: nest
92
+
nested-attributes: perf-state
93
+
multi-attr: true
94
+
-
95
+
name: perf-state
96
+
doc: >-
97
+
Performance state of a performance domain.
98
+
attributes:
99
+
-
100
+
name: pad
101
+
type: pad
102
+
-
103
+
name: performance
104
+
type: u64
105
+
doc: >-
106
+
CPU performance (capacity) at a given frequency.
107
+
-
108
+
name: frequency
109
+
type: u64
110
+
doc: >-
111
+
The frequency in KHz, for consistency with CPUFreq.
112
+
-
113
+
name: power
114
+
type: u64
115
+
doc: >-
116
+
The power consumed at this level (by 1 CPU or by a registered
117
+
device). It can be a total power: static and dynamic.
118
+
-
119
+
name: cost
120
+
type: u64
121
+
doc: >-
122
+
The cost coefficient associated with this level, used during energy
123
+
calculation. Equal to: power * max_frequency / frequency.
124
+
-
125
+
name: flags
126
+
type: u64
127
+
doc: >-
128
+
Bitmask of performance state flags.
129
+
enum: perf-state-flags
130
+
131
+
operations:
132
+
list:
133
+
-
134
+
name: get-perf-domains
135
+
attribute-set: perf-domains
136
+
doc: Get the list of information for all performance domains.
137
+
do:
138
+
reply:
139
+
attributes:
140
+
- perf-domain
141
+
-
142
+
name: get-perf-table
143
+
attribute-set: perf-table
144
+
doc: Get the energy model table of a performance domain.
145
+
do:
146
+
request:
147
+
attributes:
148
+
- perf-domain-id
149
+
reply:
150
+
attributes:
151
+
- perf-domain-id
152
+
- perf-state
153
+
-
154
+
name: perf-domain-created
155
+
doc: A performance domain is created.
156
+
notify: get-perf-table
157
+
mcgrp: event
158
+
-
159
+
name: perf-domain-updated
160
+
doc: A performance domain is updated.
161
+
notify: get-perf-table
162
+
mcgrp: event
163
+
-
164
+
name: perf-domain-deleted
165
+
doc: A performance domain is deleted.
166
+
attribute-set: perf-table
167
+
event:
168
+
attributes:
169
+
- perf-domain-id
170
+
mcgrp: event
171
+
172
+
mcast-groups:
173
+
list:
174
+
-
175
+
name: event
-116
Documentation/netlink/specs/em.yaml
-116
Documentation/netlink/specs/em.yaml
···
1
-
# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
2
-
#
3
-
# Copyright (c) 2025 Valve Corporation.
4
-
#
5
-
---
6
-
name: em
7
-
8
-
doc: |
9
-
Energy model netlink interface to notify its changes.
10
-
11
-
protocol: genetlink
12
-
13
-
uapi-header: linux/energy_model.h
14
-
15
-
attribute-sets:
16
-
-
17
-
name: pds
18
-
attributes:
19
-
-
20
-
name: pd
21
-
type: nest
22
-
nested-attributes: pd
23
-
multi-attr: true
24
-
-
25
-
name: pd
26
-
attributes:
27
-
-
28
-
name: pad
29
-
type: pad
30
-
-
31
-
name: pd-id
32
-
type: u32
33
-
-
34
-
name: flags
35
-
type: u64
36
-
-
37
-
name: cpus
38
-
type: string
39
-
-
40
-
name: pd-table
41
-
attributes:
42
-
-
43
-
name: pd-id
44
-
type: u32
45
-
-
46
-
name: ps
47
-
type: nest
48
-
nested-attributes: ps
49
-
multi-attr: true
50
-
-
51
-
name: ps
52
-
attributes:
53
-
-
54
-
name: pad
55
-
type: pad
56
-
-
57
-
name: performance
58
-
type: u64
59
-
-
60
-
name: frequency
61
-
type: u64
62
-
-
63
-
name: power
64
-
type: u64
65
-
-
66
-
name: cost
67
-
type: u64
68
-
-
69
-
name: flags
70
-
type: u64
71
-
72
-
operations:
73
-
list:
74
-
-
75
-
name: get-pds
76
-
attribute-set: pds
77
-
doc: Get the list of information for all performance domains.
78
-
do:
79
-
reply:
80
-
attributes:
81
-
- pd
82
-
-
83
-
name: get-pd-table
84
-
attribute-set: pd-table
85
-
doc: Get the energy model table of a performance domain.
86
-
do:
87
-
request:
88
-
attributes:
89
-
- pd-id
90
-
reply:
91
-
attributes:
92
-
- pd-id
93
-
- ps
94
-
-
95
-
name: pd-created
96
-
doc: A performance domain is created.
97
-
notify: get-pd-table
98
-
mcgrp: event
99
-
-
100
-
name: pd-updated
101
-
doc: A performance domain is updated.
102
-
notify: get-pd-table
103
-
mcgrp: event
104
-
-
105
-
name: pd-deleted
106
-
doc: A performance domain is deleted.
107
-
attribute-set: pd-table
108
-
event:
109
-
attributes:
110
-
- pd-id
111
-
mcgrp: event
112
-
113
-
mcast-groups:
114
-
list:
115
-
-
116
-
name: event
+4
-4
MAINTAINERS
+4
-4
MAINTAINERS
···
9298
9298
M: "Rafael J. Wysocki" <rafael@kernel.org>
9299
9299
L: linux-pm@vger.kernel.org
9300
9300
S: Maintained
9301
-
F: kernel/power/energy_model.c
9302
-
F: include/linux/energy_model.h
9301
+
F: Documentation/netlink/specs/dev-energymodel.yaml
9303
9302
F: Documentation/power/energy-model.rst
9304
-
F: Documentation/netlink/specs/em.yaml
9305
-
F: include/uapi/linux/energy_model.h
9303
+
F: include/linux/energy_model.h
9304
+
F: include/uapi/linux/dev_energymodel.h
9306
9305
F: kernel/power/em_netlink*.*
9306
+
F: kernel/power/energy_model.c
9307
9307
9308
9308
EPAPR HYPERVISOR BYTE CHANNEL DEVICE DRIVER
9309
9309
M: Laurentiu Tudor <laurentiu.tudor@nxp.com>
+89
include/uapi/linux/dev_energymodel.h
+89
include/uapi/linux/dev_energymodel.h
···
1
+
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
2
+
/* Do not edit directly, auto-generated from: */
3
+
/* Documentation/netlink/specs/dev-energymodel.yaml */
4
+
/* YNL-GEN uapi header */
5
+
/* To regenerate run: tools/net/ynl/ynl-regen.sh */
6
+
7
+
#ifndef _UAPI_LINUX_DEV_ENERGYMODEL_H
8
+
#define _UAPI_LINUX_DEV_ENERGYMODEL_H
9
+
10
+
#define DEV_ENERGYMODEL_FAMILY_NAME "dev-energymodel"
11
+
#define DEV_ENERGYMODEL_FAMILY_VERSION 1
12
+
13
+
/**
14
+
* enum dev_energymodel_perf_state_flags
15
+
* @DEV_ENERGYMODEL_PERF_STATE_FLAGS_PERF_STATE_INEFFICIENT: The performance
16
+
* state is inefficient. There is in this perf-domain, another performance
17
+
* state with a higher frequency but a lower or equal power cost.
18
+
*/
19
+
enum dev_energymodel_perf_state_flags {
20
+
DEV_ENERGYMODEL_PERF_STATE_FLAGS_PERF_STATE_INEFFICIENT = 1,
21
+
};
22
+
23
+
/**
24
+
* enum dev_energymodel_perf_domain_flags
25
+
* @DEV_ENERGYMODEL_PERF_DOMAIN_FLAGS_PERF_DOMAIN_MICROWATTS: The power values
26
+
* are in micro-Watts or some other scale.
27
+
* @DEV_ENERGYMODEL_PERF_DOMAIN_FLAGS_PERF_DOMAIN_SKIP_INEFFICIENCIES: Skip
28
+
* inefficient states when estimating energy consumption.
29
+
* @DEV_ENERGYMODEL_PERF_DOMAIN_FLAGS_PERF_DOMAIN_ARTIFICIAL: The power values
30
+
* are artificial and might be created by platform missing real power
31
+
* information.
32
+
*/
33
+
enum dev_energymodel_perf_domain_flags {
34
+
DEV_ENERGYMODEL_PERF_DOMAIN_FLAGS_PERF_DOMAIN_MICROWATTS = 1,
35
+
DEV_ENERGYMODEL_PERF_DOMAIN_FLAGS_PERF_DOMAIN_SKIP_INEFFICIENCIES = 2,
36
+
DEV_ENERGYMODEL_PERF_DOMAIN_FLAGS_PERF_DOMAIN_ARTIFICIAL = 4,
37
+
};
38
+
39
+
enum {
40
+
DEV_ENERGYMODEL_A_PERF_DOMAINS_PERF_DOMAIN = 1,
41
+
42
+
__DEV_ENERGYMODEL_A_PERF_DOMAINS_MAX,
43
+
DEV_ENERGYMODEL_A_PERF_DOMAINS_MAX = (__DEV_ENERGYMODEL_A_PERF_DOMAINS_MAX - 1)
44
+
};
45
+
46
+
enum {
47
+
DEV_ENERGYMODEL_A_PERF_DOMAIN_PAD = 1,
48
+
DEV_ENERGYMODEL_A_PERF_DOMAIN_PERF_DOMAIN_ID,
49
+
DEV_ENERGYMODEL_A_PERF_DOMAIN_FLAGS,
50
+
DEV_ENERGYMODEL_A_PERF_DOMAIN_CPUS,
51
+
52
+
__DEV_ENERGYMODEL_A_PERF_DOMAIN_MAX,
53
+
DEV_ENERGYMODEL_A_PERF_DOMAIN_MAX = (__DEV_ENERGYMODEL_A_PERF_DOMAIN_MAX - 1)
54
+
};
55
+
56
+
enum {
57
+
DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID = 1,
58
+
DEV_ENERGYMODEL_A_PERF_TABLE_PERF_STATE,
59
+
60
+
__DEV_ENERGYMODEL_A_PERF_TABLE_MAX,
61
+
DEV_ENERGYMODEL_A_PERF_TABLE_MAX = (__DEV_ENERGYMODEL_A_PERF_TABLE_MAX - 1)
62
+
};
63
+
64
+
enum {
65
+
DEV_ENERGYMODEL_A_PERF_STATE_PAD = 1,
66
+
DEV_ENERGYMODEL_A_PERF_STATE_PERFORMANCE,
67
+
DEV_ENERGYMODEL_A_PERF_STATE_FREQUENCY,
68
+
DEV_ENERGYMODEL_A_PERF_STATE_POWER,
69
+
DEV_ENERGYMODEL_A_PERF_STATE_COST,
70
+
DEV_ENERGYMODEL_A_PERF_STATE_FLAGS,
71
+
72
+
__DEV_ENERGYMODEL_A_PERF_STATE_MAX,
73
+
DEV_ENERGYMODEL_A_PERF_STATE_MAX = (__DEV_ENERGYMODEL_A_PERF_STATE_MAX - 1)
74
+
};
75
+
76
+
enum {
77
+
DEV_ENERGYMODEL_CMD_GET_PERF_DOMAINS = 1,
78
+
DEV_ENERGYMODEL_CMD_GET_PERF_TABLE,
79
+
DEV_ENERGYMODEL_CMD_PERF_DOMAIN_CREATED,
80
+
DEV_ENERGYMODEL_CMD_PERF_DOMAIN_UPDATED,
81
+
DEV_ENERGYMODEL_CMD_PERF_DOMAIN_DELETED,
82
+
83
+
__DEV_ENERGYMODEL_CMD_MAX,
84
+
DEV_ENERGYMODEL_CMD_MAX = (__DEV_ENERGYMODEL_CMD_MAX - 1)
85
+
};
86
+
87
+
#define DEV_ENERGYMODEL_MCGRP_EVENT "event"
88
+
89
+
#endif /* _UAPI_LINUX_DEV_ENERGYMODEL_H */
-63
include/uapi/linux/energy_model.h
-63
include/uapi/linux/energy_model.h
···
1
-
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
2
-
/* Do not edit directly, auto-generated from: */
3
-
/* Documentation/netlink/specs/em.yaml */
4
-
/* YNL-GEN uapi header */
5
-
/* To regenerate run: tools/net/ynl/ynl-regen.sh */
6
-
7
-
#ifndef _UAPI_LINUX_ENERGY_MODEL_H
8
-
#define _UAPI_LINUX_ENERGY_MODEL_H
9
-
10
-
#define EM_FAMILY_NAME "em"
11
-
#define EM_FAMILY_VERSION 1
12
-
13
-
enum {
14
-
EM_A_PDS_PD = 1,
15
-
16
-
__EM_A_PDS_MAX,
17
-
EM_A_PDS_MAX = (__EM_A_PDS_MAX - 1)
18
-
};
19
-
20
-
enum {
21
-
EM_A_PD_PAD = 1,
22
-
EM_A_PD_PD_ID,
23
-
EM_A_PD_FLAGS,
24
-
EM_A_PD_CPUS,
25
-
26
-
__EM_A_PD_MAX,
27
-
EM_A_PD_MAX = (__EM_A_PD_MAX - 1)
28
-
};
29
-
30
-
enum {
31
-
EM_A_PD_TABLE_PD_ID = 1,
32
-
EM_A_PD_TABLE_PS,
33
-
34
-
__EM_A_PD_TABLE_MAX,
35
-
EM_A_PD_TABLE_MAX = (__EM_A_PD_TABLE_MAX - 1)
36
-
};
37
-
38
-
enum {
39
-
EM_A_PS_PAD = 1,
40
-
EM_A_PS_PERFORMANCE,
41
-
EM_A_PS_FREQUENCY,
42
-
EM_A_PS_POWER,
43
-
EM_A_PS_COST,
44
-
EM_A_PS_FLAGS,
45
-
46
-
__EM_A_PS_MAX,
47
-
EM_A_PS_MAX = (__EM_A_PS_MAX - 1)
48
-
};
49
-
50
-
enum {
51
-
EM_CMD_GET_PDS = 1,
52
-
EM_CMD_GET_PD_TABLE,
53
-
EM_CMD_PD_CREATED,
54
-
EM_CMD_PD_UPDATED,
55
-
EM_CMD_PD_DELETED,
56
-
57
-
__EM_CMD_MAX,
58
-
EM_CMD_MAX = (__EM_CMD_MAX - 1)
59
-
};
60
-
61
-
#define EM_MCGRP_EVENT "event"
62
-
63
-
#endif /* _UAPI_LINUX_ENERGY_MODEL_H */
+83
-52
kernel/power/em_netlink.c
+83
-52
kernel/power/em_netlink.c
···
12
12
#include <linux/energy_model.h>
13
13
#include <net/sock.h>
14
14
#include <net/genetlink.h>
15
-
#include <uapi/linux/energy_model.h>
15
+
#include <uapi/linux/dev_energymodel.h>
16
16
17
17
#include "em_netlink.h"
18
18
#include "em_netlink_autogen.h"
19
19
20
-
#define EM_A_PD_CPUS_LEN 256
20
+
#define DEV_ENERGYMODEL_A_PERF_DOMAIN_CPUS_LEN 256
21
21
22
22
/*************************** Command encoding ********************************/
23
23
static int __em_nl_get_pd_size(struct em_perf_domain *pd, void *data)
24
24
{
25
-
char cpus_buf[EM_A_PD_CPUS_LEN];
25
+
char cpus_buf[DEV_ENERGYMODEL_A_PERF_DOMAIN_CPUS_LEN];
26
26
int *tot_msg_sz = data;
27
27
int msg_sz, cpus_sz;
28
28
29
29
cpus_sz = snprintf(cpus_buf, sizeof(cpus_buf), "%*pb",
30
30
cpumask_pr_args(to_cpumask(pd->cpus)));
31
31
32
-
msg_sz = nla_total_size(0) + /* EM_A_PDS_PD */
33
-
nla_total_size(sizeof(u32)) + /* EM_A_PD_PD_ID */
34
-
nla_total_size_64bit(sizeof(u64)) + /* EM_A_PD_FLAGS */
35
-
nla_total_size(cpus_sz); /* EM_A_PD_CPUS */
32
+
msg_sz = nla_total_size(0) +
33
+
/* DEV_ENERGYMODEL_A_PERF_DOMAINS_PERF_DOMAIN */
34
+
nla_total_size(sizeof(u32)) +
35
+
/* DEV_ENERGYMODEL_A_PERF_DOMAIN_PERF_DOMAIN_ID */
36
+
nla_total_size_64bit(sizeof(u64)) +
37
+
/* DEV_ENERGYMODEL_A_PERF_DOMAIN_FLAGS */
38
+
nla_total_size(cpus_sz);
39
+
/* DEV_ENERGYMODEL_A_PERF_DOMAIN_CPUS */
36
40
37
41
*tot_msg_sz += nlmsg_total_size(genlmsg_msg_size(msg_sz));
38
42
return 0;
···
44
40
45
41
static int __em_nl_get_pd(struct em_perf_domain *pd, void *data)
46
42
{
47
-
char cpus_buf[EM_A_PD_CPUS_LEN];
43
+
char cpus_buf[DEV_ENERGYMODEL_A_PERF_DOMAIN_CPUS_LEN];
48
44
struct sk_buff *msg = data;
49
45
struct nlattr *entry;
50
46
51
-
entry = nla_nest_start(msg, EM_A_PDS_PD);
47
+
entry = nla_nest_start(msg,
48
+
DEV_ENERGYMODEL_A_PERF_DOMAINS_PERF_DOMAIN);
52
49
if (!entry)
53
50
goto out_cancel_nest;
54
51
55
-
if (nla_put_u32(msg, EM_A_PD_PD_ID, pd->id))
52
+
if (nla_put_u32(msg, DEV_ENERGYMODEL_A_PERF_DOMAIN_PERF_DOMAIN_ID,
53
+
pd->id))
56
54
goto out_cancel_nest;
57
55
58
-
if (nla_put_u64_64bit(msg, EM_A_PD_FLAGS, pd->flags, EM_A_PD_PAD))
56
+
if (nla_put_u64_64bit(msg, DEV_ENERGYMODEL_A_PERF_DOMAIN_FLAGS,
57
+
pd->flags, DEV_ENERGYMODEL_A_PERF_DOMAIN_PAD))
59
58
goto out_cancel_nest;
60
59
61
60
snprintf(cpus_buf, sizeof(cpus_buf), "%*pb",
62
61
cpumask_pr_args(to_cpumask(pd->cpus)));
63
-
if (nla_put_string(msg, EM_A_PD_CPUS, cpus_buf))
62
+
if (nla_put_string(msg, DEV_ENERGYMODEL_A_PERF_DOMAIN_CPUS, cpus_buf))
64
63
goto out_cancel_nest;
65
64
66
65
nla_nest_end(msg, entry);
···
76
69
return -EMSGSIZE;
77
70
}
78
71
79
-
int em_nl_get_pds_doit(struct sk_buff *skb, struct genl_info *info)
72
+
int dev_energymodel_nl_get_perf_domains_doit(struct sk_buff *skb,
73
+
struct genl_info *info)
80
74
{
81
75
struct sk_buff *msg;
82
76
void *hdr;
···
90
82
if (!msg)
91
83
return -ENOMEM;
92
84
93
-
hdr = genlmsg_put_reply(msg, info, &em_nl_family, 0, cmd);
85
+
hdr = genlmsg_put_reply(msg, info, &dev_energymodel_nl_family, 0, cmd);
94
86
if (!hdr)
95
87
goto out_free_msg;
96
88
···
115
107
struct em_perf_domain *pd;
116
108
int id;
117
109
118
-
if (!attrs[EM_A_PD_TABLE_PD_ID])
110
+
if (!attrs[DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID])
119
111
return NULL;
120
112
121
-
id = nla_get_u32(attrs[EM_A_PD_TABLE_PD_ID]);
113
+
id = nla_get_u32(attrs[DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID]);
122
114
pd = em_perf_domain_get_by_id(id);
123
115
return pd;
124
116
}
···
127
119
{
128
120
int id_sz, ps_sz;
129
121
130
-
id_sz = nla_total_size(sizeof(u32)); /* EM_A_PD_TABLE_PD_ID */
131
-
ps_sz = nla_total_size(0) + /* EM_A_PD_TABLE_PS */
132
-
nla_total_size_64bit(sizeof(u64)) + /* EM_A_PS_PERFORMANCE */
133
-
nla_total_size_64bit(sizeof(u64)) + /* EM_A_PS_FREQUENCY */
134
-
nla_total_size_64bit(sizeof(u64)) + /* EM_A_PS_POWER */
135
-
nla_total_size_64bit(sizeof(u64)) + /* EM_A_PS_COST */
136
-
nla_total_size_64bit(sizeof(u64)); /* EM_A_PS_FLAGS */
122
+
id_sz = nla_total_size(sizeof(u32));
123
+
/* DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID */
124
+
ps_sz = nla_total_size(0) +
125
+
/* DEV_ENERGYMODEL_A_PERF_TABLE_PERF_STATE */
126
+
nla_total_size_64bit(sizeof(u64)) +
127
+
/* DEV_ENERGYMODEL_A_PERF_STATE_PERFORMANCE */
128
+
nla_total_size_64bit(sizeof(u64)) +
129
+
/* DEV_ENERGYMODEL_A_PERF_STATE_FREQUENCY */
130
+
nla_total_size_64bit(sizeof(u64)) +
131
+
/* DEV_ENERGYMODEL_A_PERF_STATE_POWER */
132
+
nla_total_size_64bit(sizeof(u64)) +
133
+
/* DEV_ENERGYMODEL_A_PERF_STATE_COST */
134
+
nla_total_size_64bit(sizeof(u64));
135
+
/* DEV_ENERGYMODEL_A_PERF_STATE_FLAGS */
137
136
ps_sz *= pd->nr_perf_states;
138
137
139
138
return nlmsg_total_size(genlmsg_msg_size(id_sz + ps_sz));
140
139
}
141
140
142
-
static int __em_nl_get_pd_table(struct sk_buff *msg, const struct em_perf_domain *pd)
141
+
static
142
+
int __em_nl_get_pd_table(struct sk_buff *msg, const struct em_perf_domain *pd)
143
143
{
144
144
struct em_perf_state *table, *ps;
145
145
struct nlattr *entry;
146
146
int i;
147
147
148
-
if (nla_put_u32(msg, EM_A_PD_TABLE_PD_ID, pd->id))
148
+
if (nla_put_u32(msg, DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID,
149
+
pd->id))
149
150
goto out_err;
150
151
151
152
rcu_read_lock();
···
163
146
for (i = 0; i < pd->nr_perf_states; i++) {
164
147
ps = &table[i];
165
148
166
-
entry = nla_nest_start(msg, EM_A_PD_TABLE_PS);
149
+
entry = nla_nest_start(msg,
150
+
DEV_ENERGYMODEL_A_PERF_TABLE_PERF_STATE);
167
151
if (!entry)
168
152
goto out_unlock_ps;
169
153
170
-
if (nla_put_u64_64bit(msg, EM_A_PS_PERFORMANCE,
171
-
ps->performance, EM_A_PS_PAD))
154
+
if (nla_put_u64_64bit(msg,
155
+
DEV_ENERGYMODEL_A_PERF_STATE_PERFORMANCE,
156
+
ps->performance,
157
+
DEV_ENERGYMODEL_A_PERF_STATE_PAD))
172
158
goto out_cancel_ps_nest;
173
-
if (nla_put_u64_64bit(msg, EM_A_PS_FREQUENCY,
174
-
ps->frequency, EM_A_PS_PAD))
159
+
if (nla_put_u64_64bit(msg,
160
+
DEV_ENERGYMODEL_A_PERF_STATE_FREQUENCY,
161
+
ps->frequency,
162
+
DEV_ENERGYMODEL_A_PERF_STATE_PAD))
175
163
goto out_cancel_ps_nest;
176
-
if (nla_put_u64_64bit(msg, EM_A_PS_POWER,
177
-
ps->power, EM_A_PS_PAD))
164
+
if (nla_put_u64_64bit(msg,
165
+
DEV_ENERGYMODEL_A_PERF_STATE_POWER,
166
+
ps->power,
167
+
DEV_ENERGYMODEL_A_PERF_STATE_PAD))
178
168
goto out_cancel_ps_nest;
179
-
if (nla_put_u64_64bit(msg, EM_A_PS_COST,
180
-
ps->cost, EM_A_PS_PAD))
169
+
if (nla_put_u64_64bit(msg,
170
+
DEV_ENERGYMODEL_A_PERF_STATE_COST,
171
+
ps->cost,
172
+
DEV_ENERGYMODEL_A_PERF_STATE_PAD))
181
173
goto out_cancel_ps_nest;
182
-
if (nla_put_u64_64bit(msg, EM_A_PS_FLAGS,
183
-
ps->flags, EM_A_PS_PAD))
174
+
if (nla_put_u64_64bit(msg,
175
+
DEV_ENERGYMODEL_A_PERF_STATE_FLAGS,
176
+
ps->flags,
177
+
DEV_ENERGYMODEL_A_PERF_STATE_PAD))
184
178
goto out_cancel_ps_nest;
185
179
186
180
nla_nest_end(msg, entry);
···
207
179
return -EMSGSIZE;
208
180
}
209
181
210
-
int em_nl_get_pd_table_doit(struct sk_buff *skb, struct genl_info *info)
182
+
int dev_energymodel_nl_get_perf_table_doit(struct sk_buff *skb,
183
+
struct genl_info *info)
211
184
{
212
185
int cmd = info->genlhdr->cmd;
213
186
int msg_sz, ret = -EMSGSIZE;
···
226
197
if (!msg)
227
198
return -ENOMEM;
228
199
229
-
hdr = genlmsg_put_reply(msg, info, &em_nl_family, 0, cmd);
200
+
hdr = genlmsg_put_reply(msg, info, &dev_energymodel_nl_family, 0, cmd);
230
201
if (!hdr)
231
202
goto out_free_msg;
232
203
···
250
221
int msg_sz, ret = -EMSGSIZE;
251
222
void *hdr;
252
223
253
-
if (!genl_has_listeners(&em_nl_family, &init_net, EM_NLGRP_EVENT))
224
+
if (!genl_has_listeners(&dev_energymodel_nl_family, &init_net, DEV_ENERGYMODEL_NLGRP_EVENT))
254
225
return;
255
226
256
227
msg_sz = __em_nl_get_pd_table_size(pd);
···
259
230
if (!msg)
260
231
return;
261
232
262
-
hdr = genlmsg_put(msg, 0, 0, &em_nl_family, 0, ntf_type);
233
+
hdr = genlmsg_put(msg, 0, 0, &dev_energymodel_nl_family, 0, ntf_type);
263
234
if (!hdr)
264
235
goto out_free_msg;
265
236
···
269
240
270
241
genlmsg_end(msg, hdr);
271
242
272
-
genlmsg_multicast(&em_nl_family, msg, 0, EM_NLGRP_EVENT, GFP_KERNEL);
243
+
genlmsg_multicast(&dev_energymodel_nl_family, msg, 0,
244
+
DEV_ENERGYMODEL_NLGRP_EVENT, GFP_KERNEL);
273
245
274
246
return;
275
247
276
248
out_free_msg:
277
249
nlmsg_free(msg);
278
-
return;
279
250
}
280
251
281
252
void em_notify_pd_created(const struct em_perf_domain *pd)
282
253
{
283
-
__em_notify_pd_table(pd, EM_CMD_PD_CREATED);
254
+
__em_notify_pd_table(pd, DEV_ENERGYMODEL_CMD_PERF_DOMAIN_CREATED);
284
255
}
285
256
286
257
void em_notify_pd_updated(const struct em_perf_domain *pd)
287
258
{
288
-
__em_notify_pd_table(pd, EM_CMD_PD_UPDATED);
259
+
__em_notify_pd_table(pd, DEV_ENERGYMODEL_CMD_PERF_DOMAIN_UPDATED);
289
260
}
290
261
291
262
static int __em_notify_pd_deleted_size(const struct em_perf_domain *pd)
292
263
{
293
-
int id_sz = nla_total_size(sizeof(u32)); /* EM_A_PD_TABLE_PD_ID */
264
+
int id_sz = nla_total_size(sizeof(u32)); /* DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID */
294
265
295
266
return nlmsg_total_size(genlmsg_msg_size(id_sz));
296
267
}
···
301
272
void *hdr;
302
273
int msg_sz;
303
274
304
-
if (!genl_has_listeners(&em_nl_family, &init_net, EM_NLGRP_EVENT))
275
+
if (!genl_has_listeners(&dev_energymodel_nl_family, &init_net,
276
+
DEV_ENERGYMODEL_NLGRP_EVENT))
305
277
return;
306
278
307
279
msg_sz = __em_notify_pd_deleted_size(pd);
···
311
281
if (!msg)
312
282
return;
313
283
314
-
hdr = genlmsg_put(msg, 0, 0, &em_nl_family, 0, EM_CMD_PD_DELETED);
284
+
hdr = genlmsg_put(msg, 0, 0, &dev_energymodel_nl_family, 0,
285
+
DEV_ENERGYMODEL_CMD_PERF_DOMAIN_DELETED);
315
286
if (!hdr)
316
287
goto out_free_msg;
317
288
318
-
if (nla_put_u32(msg, EM_A_PD_TABLE_PD_ID, pd->id)) {
289
+
if (nla_put_u32(msg, DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID,
290
+
pd->id))
319
291
goto out_free_msg;
320
-
}
321
292
322
293
genlmsg_end(msg, hdr);
323
294
324
-
genlmsg_multicast(&em_nl_family, msg, 0, EM_NLGRP_EVENT, GFP_KERNEL);
295
+
genlmsg_multicast(&dev_energymodel_nl_family, msg, 0,
296
+
DEV_ENERGYMODEL_NLGRP_EVENT, GFP_KERNEL);
325
297
326
298
return;
327
299
328
300
out_free_msg:
329
301
nlmsg_free(msg);
330
-
return;
331
302
}
332
303
333
304
/**************************** Initialization *********************************/
334
305
static int __init em_netlink_init(void)
335
306
{
336
-
return genl_register_family(&em_nl_family);
307
+
return genl_register_family(&dev_energymodel_nl_family);
337
308
}
338
309
postcore_initcall(em_netlink_init);
+22
-22
kernel/power/em_netlink_autogen.c
+22
-22
kernel/power/em_netlink_autogen.c
···
1
1
// SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
2
2
/* Do not edit directly, auto-generated from: */
3
-
/* Documentation/netlink/specs/em.yaml */
3
+
/* Documentation/netlink/specs/dev-energymodel.yaml */
4
4
/* YNL-GEN kernel source */
5
5
/* To regenerate run: tools/net/ynl/ynl-regen.sh */
6
6
···
9
9
10
10
#include "em_netlink_autogen.h"
11
11
12
-
#include <uapi/linux/energy_model.h>
12
+
#include <uapi/linux/dev_energymodel.h>
13
13
14
-
/* EM_CMD_GET_PD_TABLE - do */
15
-
static const struct nla_policy em_get_pd_table_nl_policy[EM_A_PD_TABLE_PD_ID + 1] = {
16
-
[EM_A_PD_TABLE_PD_ID] = { .type = NLA_U32, },
14
+
/* DEV_ENERGYMODEL_CMD_GET_PERF_TABLE - do */
15
+
static const struct nla_policy dev_energymodel_get_perf_table_nl_policy[DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID + 1] = {
16
+
[DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID] = { .type = NLA_U32, },
17
17
};
18
18
19
-
/* Ops table for em */
20
-
static const struct genl_split_ops em_nl_ops[] = {
19
+
/* Ops table for dev_energymodel */
20
+
static const struct genl_split_ops dev_energymodel_nl_ops[] = {
21
21
{
22
-
.cmd = EM_CMD_GET_PDS,
23
-
.doit = em_nl_get_pds_doit,
22
+
.cmd = DEV_ENERGYMODEL_CMD_GET_PERF_DOMAINS,
23
+
.doit = dev_energymodel_nl_get_perf_domains_doit,
24
24
.flags = GENL_CMD_CAP_DO,
25
25
},
26
26
{
27
-
.cmd = EM_CMD_GET_PD_TABLE,
28
-
.doit = em_nl_get_pd_table_doit,
29
-
.policy = em_get_pd_table_nl_policy,
30
-
.maxattr = EM_A_PD_TABLE_PD_ID,
27
+
.cmd = DEV_ENERGYMODEL_CMD_GET_PERF_TABLE,
28
+
.doit = dev_energymodel_nl_get_perf_table_doit,
29
+
.policy = dev_energymodel_get_perf_table_nl_policy,
30
+
.maxattr = DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID,
31
31
.flags = GENL_CMD_CAP_DO,
32
32
},
33
33
};
34
34
35
-
static const struct genl_multicast_group em_nl_mcgrps[] = {
36
-
[EM_NLGRP_EVENT] = { "event", },
35
+
static const struct genl_multicast_group dev_energymodel_nl_mcgrps[] = {
36
+
[DEV_ENERGYMODEL_NLGRP_EVENT] = { "event", },
37
37
};
38
38
39
-
struct genl_family em_nl_family __ro_after_init = {
40
-
.name = EM_FAMILY_NAME,
41
-
.version = EM_FAMILY_VERSION,
39
+
struct genl_family dev_energymodel_nl_family __ro_after_init = {
40
+
.name = DEV_ENERGYMODEL_FAMILY_NAME,
41
+
.version = DEV_ENERGYMODEL_FAMILY_VERSION,
42
42
.netnsok = true,
43
43
.parallel_ops = true,
44
44
.module = THIS_MODULE,
45
-
.split_ops = em_nl_ops,
46
-
.n_split_ops = ARRAY_SIZE(em_nl_ops),
47
-
.mcgrps = em_nl_mcgrps,
48
-
.n_mcgrps = ARRAY_SIZE(em_nl_mcgrps),
45
+
.split_ops = dev_energymodel_nl_ops,
46
+
.n_split_ops = ARRAY_SIZE(dev_energymodel_nl_ops),
47
+
.mcgrps = dev_energymodel_nl_mcgrps,
48
+
.n_mcgrps = ARRAY_SIZE(dev_energymodel_nl_mcgrps),
49
49
};
+11
-9
kernel/power/em_netlink_autogen.h
+11
-9
kernel/power/em_netlink_autogen.h
···
1
1
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
2
2
/* Do not edit directly, auto-generated from: */
3
-
/* Documentation/netlink/specs/em.yaml */
3
+
/* Documentation/netlink/specs/dev-energymodel.yaml */
4
4
/* YNL-GEN kernel header */
5
5
/* To regenerate run: tools/net/ynl/ynl-regen.sh */
6
6
7
-
#ifndef _LINUX_EM_GEN_H
8
-
#define _LINUX_EM_GEN_H
7
+
#ifndef _LINUX_DEV_ENERGYMODEL_GEN_H
8
+
#define _LINUX_DEV_ENERGYMODEL_GEN_H
9
9
10
10
#include <net/netlink.h>
11
11
#include <net/genetlink.h>
12
12
13
-
#include <uapi/linux/energy_model.h>
13
+
#include <uapi/linux/dev_energymodel.h>
14
14
15
-
int em_nl_get_pds_doit(struct sk_buff *skb, struct genl_info *info);
16
-
int em_nl_get_pd_table_doit(struct sk_buff *skb, struct genl_info *info);
15
+
int dev_energymodel_nl_get_perf_domains_doit(struct sk_buff *skb,
16
+
struct genl_info *info);
17
+
int dev_energymodel_nl_get_perf_table_doit(struct sk_buff *skb,
18
+
struct genl_info *info);
17
19
18
20
enum {
19
-
EM_NLGRP_EVENT,
21
+
DEV_ENERGYMODEL_NLGRP_EVENT,
20
22
};
21
23
22
-
extern struct genl_family em_nl_family;
24
+
extern struct genl_family dev_energymodel_nl_family;
23
25
24
-
#endif /* _LINUX_EM_GEN_H */
26
+
#endif /* _LINUX_DEV_ENERGYMODEL_GEN_H */