torvalds/linux
3
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-03-22 07:27:12 +08:00
Code Issues Packages Projects Releases Wiki Activity

PM: EM: Rename em.yaml to dev-energymodel.yaml

Browse Source 
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>
This commit is contained in:
Changwoo Min
2026-01-08 14:32:10 +09:00
committed by Rafael J. Wysocki
parent ebabc32ddb
commit caa07a815d
8 changed files with 384 additions and 266 deletions
Download Patch File Download Diff File Expand all files Collapse all files

175
Documentation/netlink/specs/dev-energymodel.yaml Normal file
View File

@@ -0,0 +1,175 @@
# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
#
# Copyright (c) 2025 Valve Corporation.
#
---
name: dev-energymodel
doc: |
Energy model netlink interface to notify its changes.
protocol: genetlink
uapi-header: linux/dev_energymodel.h
definitions:
-
type: flags
name: perf-state-flags
entries:
-
name: perf-state-inefficient
doc: >-
The performance state is inefficient. There is in this perf-domain,
another performance state with a higher frequency but a lower or
equal power cost.
-
type: flags
name: perf-domain-flags
entries:
-
name: perf-domain-microwatts
doc: >-
The power values are in micro-Watts or some other scale.
-
name: perf-domain-skip-inefficiencies
doc: >-
Skip inefficient states when estimating energy consumption.
-
name: perf-domain-artificial
doc: >-
The power values are artificial and might be created by platform
missing real power information.
attribute-sets:
-
name: perf-domains
doc: >-
Information on all the performance domains.
attributes:
-
name: perf-domain
type: nest
nested-attributes: perf-domain
multi-attr: true
-
name: perf-domain
doc: >-
Information on a single performance domains.
attributes:
-
name: pad
type: pad
-
name: perf-domain-id
type: u32
doc: >-
A unique ID number for each performance domain.
-
name: flags
type: u64
doc: >-
Bitmask of performance domain flags.
enum: perf-domain-flags
-
name: cpus
type: string
doc: >-
CPUs that belong to this performance domain.
-
name: perf-table
doc: >-
Performance states table.
attributes:
-
name: perf-domain-id
type: u32
doc: >-
A unique ID number for each performance domain.
-
name: perf-state
type: nest
nested-attributes: perf-state
multi-attr: true
-
name: perf-state
doc: >-
Performance state of a performance domain.
attributes:
-
name: pad
type: pad
-
name: performance
type: u64
doc: >-
CPU performance (capacity) at a given frequency.
-
name: frequency
type: u64
doc: >-
The frequency in KHz, for consistency with CPUFreq.
-
name: power
type: u64
doc: >-
The power consumed at this level (by 1 CPU or by a registered
device). It can be a total power: static and dynamic.
-
name: cost
type: u64
doc: >-
The cost coefficient associated with this level, used during energy
calculation. Equal to: power * max_frequency / frequency.
-
name: flags
type: u64
doc: >-
Bitmask of performance state flags.
enum: perf-state-flags
operations:
list:
-
name: get-perf-domains
attribute-set: perf-domains
doc: Get the list of information for all performance domains.
do:
reply:
attributes:
- perf-domain
-
name: get-perf-table
attribute-set: perf-table
doc: Get the energy model table of a performance domain.
do:
request:
attributes:
- perf-domain-id
reply:
attributes:
- perf-domain-id
- perf-state
-
name: perf-domain-created
doc: A performance domain is created.
notify: get-perf-table
mcgrp: event
-
name: perf-domain-updated
doc: A performance domain is updated.
notify: get-perf-table
mcgrp: event
-
name: perf-domain-deleted
doc: A performance domain is deleted.
attribute-set: perf-table
event:
attributes:
- perf-domain-id
mcgrp: event
mcast-groups:
list:
-
name: event

116
Documentation/netlink/specs/em.yaml
View File

@@ -1,116 +0,0 @@
# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
#
# Copyright (c) 2025 Valve Corporation.
#
---
name: em
doc: |
Energy model netlink interface to notify its changes.
protocol: genetlink
uapi-header: linux/energy_model.h
attribute-sets:
-
name: pds
attributes:
-
name: pd
type: nest
nested-attributes: pd
multi-attr: true
-
name: pd
attributes:
-
name: pad
type: pad
-
name: pd-id
type: u32
-
name: flags
type: u64
-
name: cpus
type: string
-
name: pd-table
attributes:
-
name: pd-id
type: u32
-
name: ps
type: nest
nested-attributes: ps
multi-attr: true
-
name: ps
attributes:
-
name: pad
type: pad
-
name: performance
type: u64
-
name: frequency
type: u64
-
name: power
type: u64
-
name: cost
type: u64
-
name: flags
type: u64
operations:
list:
-
name: get-pds
attribute-set: pds
doc: Get the list of information for all performance domains.
do:
reply:
attributes:
- pd
-
name: get-pd-table
attribute-set: pd-table
doc: Get the energy model table of a performance domain.
do:
request:
attributes:
- pd-id
reply:
attributes:
- pd-id
- ps
-
name: pd-created
doc: A performance domain is created.
notify: get-pd-table
mcgrp: event
-
name: pd-updated
doc: A performance domain is updated.
notify: get-pd-table
mcgrp: event
-
name: pd-deleted
doc: A performance domain is deleted.
attribute-set: pd-table
event:
attributes:
- pd-id
mcgrp: event
mcast-groups:
list:
-
name: event

8
MAINTAINERS
View File

@@ -9298,12 +9298,12 @@ M: Lukasz Luba <lukasz.luba@arm.com>
M: "Rafael J. Wysocki" <rafael@kernel.org>
L: linux-pm@vger.kernel.org
S: Maintained
F: kernel/power/energy_model.c
F: include/linux/energy_model.h
F: Documentation/netlink/specs/dev-energymodel.yaml
F: Documentation/power/energy-model.rst
F: Documentation/netlink/specs/em.yaml
F: include/uapi/linux/energy_model.h
F: include/linux/energy_model.h
F: include/uapi/linux/dev_energymodel.h
F: kernel/power/em_netlink*.*
F: kernel/power/energy_model.c
EPAPR HYPERVISOR BYTE CHANNEL DEVICE DRIVER
M: Laurentiu Tudor <laurentiu.tudor@nxp.com>

89
include/uapi/linux/dev_energymodel.h Normal file
View File

@@ -0,0 +1,89 @@
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
/* Do not edit directly, auto-generated from: */
/* Documentation/netlink/specs/dev-energymodel.yaml */
/* YNL-GEN uapi header */
/* To regenerate run: tools/net/ynl/ynl-regen.sh */
#ifndef _UAPI_LINUX_DEV_ENERGYMODEL_H
#define _UAPI_LINUX_DEV_ENERGYMODEL_H
#define DEV_ENERGYMODEL_FAMILY_NAME "dev-energymodel"
#define DEV_ENERGYMODEL_FAMILY_VERSION 1
/**
* enum dev_energymodel_perf_state_flags
* @DEV_ENERGYMODEL_PERF_STATE_FLAGS_PERF_STATE_INEFFICIENT: The performance
* state is inefficient. There is in this perf-domain, another performance
* state with a higher frequency but a lower or equal power cost.
*/
enum dev_energymodel_perf_state_flags {
DEV_ENERGYMODEL_PERF_STATE_FLAGS_PERF_STATE_INEFFICIENT = 1,
};
/**
* enum dev_energymodel_perf_domain_flags
* @DEV_ENERGYMODEL_PERF_DOMAIN_FLAGS_PERF_DOMAIN_MICROWATTS: The power values
* are in micro-Watts or some other scale.
* @DEV_ENERGYMODEL_PERF_DOMAIN_FLAGS_PERF_DOMAIN_SKIP_INEFFICIENCIES: Skip
* inefficient states when estimating energy consumption.
* @DEV_ENERGYMODEL_PERF_DOMAIN_FLAGS_PERF_DOMAIN_ARTIFICIAL: The power values
* are artificial and might be created by platform missing real power
* information.
*/
enum dev_energymodel_perf_domain_flags {
DEV_ENERGYMODEL_PERF_DOMAIN_FLAGS_PERF_DOMAIN_MICROWATTS = 1,
DEV_ENERGYMODEL_PERF_DOMAIN_FLAGS_PERF_DOMAIN_SKIP_INEFFICIENCIES = 2,
DEV_ENERGYMODEL_PERF_DOMAIN_FLAGS_PERF_DOMAIN_ARTIFICIAL = 4,
};
enum {
DEV_ENERGYMODEL_A_PERF_DOMAINS_PERF_DOMAIN = 1,
__DEV_ENERGYMODEL_A_PERF_DOMAINS_MAX,
DEV_ENERGYMODEL_A_PERF_DOMAINS_MAX = (__DEV_ENERGYMODEL_A_PERF_DOMAINS_MAX - 1)
};
enum {
DEV_ENERGYMODEL_A_PERF_DOMAIN_PAD = 1,
DEV_ENERGYMODEL_A_PERF_DOMAIN_PERF_DOMAIN_ID,
DEV_ENERGYMODEL_A_PERF_DOMAIN_FLAGS,
DEV_ENERGYMODEL_A_PERF_DOMAIN_CPUS,
__DEV_ENERGYMODEL_A_PERF_DOMAIN_MAX,
DEV_ENERGYMODEL_A_PERF_DOMAIN_MAX = (__DEV_ENERGYMODEL_A_PERF_DOMAIN_MAX - 1)
};
enum {
DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID = 1,
DEV_ENERGYMODEL_A_PERF_TABLE_PERF_STATE,
__DEV_ENERGYMODEL_A_PERF_TABLE_MAX,
DEV_ENERGYMODEL_A_PERF_TABLE_MAX = (__DEV_ENERGYMODEL_A_PERF_TABLE_MAX - 1)
};
enum {
DEV_ENERGYMODEL_A_PERF_STATE_PAD = 1,
DEV_ENERGYMODEL_A_PERF_STATE_PERFORMANCE,
DEV_ENERGYMODEL_A_PERF_STATE_FREQUENCY,
DEV_ENERGYMODEL_A_PERF_STATE_POWER,
DEV_ENERGYMODEL_A_PERF_STATE_COST,
DEV_ENERGYMODEL_A_PERF_STATE_FLAGS,
__DEV_ENERGYMODEL_A_PERF_STATE_MAX,
DEV_ENERGYMODEL_A_PERF_STATE_MAX = (__DEV_ENERGYMODEL_A_PERF_STATE_MAX - 1)
};
enum {
DEV_ENERGYMODEL_CMD_GET_PERF_DOMAINS = 1,
DEV_ENERGYMODEL_CMD_GET_PERF_TABLE,
DEV_ENERGYMODEL_CMD_PERF_DOMAIN_CREATED,
DEV_ENERGYMODEL_CMD_PERF_DOMAIN_UPDATED,
DEV_ENERGYMODEL_CMD_PERF_DOMAIN_DELETED,
__DEV_ENERGYMODEL_CMD_MAX,
DEV_ENERGYMODEL_CMD_MAX = (__DEV_ENERGYMODEL_CMD_MAX - 1)
};
#define DEV_ENERGYMODEL_MCGRP_EVENT "event"
#endif /* _UAPI_LINUX_DEV_ENERGYMODEL_H */

63
include/uapi/linux/energy_model.h
View File

@@ -1,63 +0,0 @@
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
/* Do not edit directly, auto-generated from: */
/* Documentation/netlink/specs/em.yaml */
/* YNL-GEN uapi header */
/* To regenerate run: tools/net/ynl/ynl-regen.sh */
#ifndef _UAPI_LINUX_ENERGY_MODEL_H
#define _UAPI_LINUX_ENERGY_MODEL_H
#define EM_FAMILY_NAME "em"
#define EM_FAMILY_VERSION 1
enum {
EM_A_PDS_PD = 1,
__EM_A_PDS_MAX,
EM_A_PDS_MAX = (__EM_A_PDS_MAX - 1)
};
enum {
EM_A_PD_PAD = 1,
EM_A_PD_PD_ID,
EM_A_PD_FLAGS,
EM_A_PD_CPUS,
__EM_A_PD_MAX,
EM_A_PD_MAX = (__EM_A_PD_MAX - 1)
};
enum {
EM_A_PD_TABLE_PD_ID = 1,
EM_A_PD_TABLE_PS,
__EM_A_PD_TABLE_MAX,
EM_A_PD_TABLE_MAX = (__EM_A_PD_TABLE_MAX - 1)
};
enum {
EM_A_PS_PAD = 1,
EM_A_PS_PERFORMANCE,
EM_A_PS_FREQUENCY,
EM_A_PS_POWER,
EM_A_PS_COST,
EM_A_PS_FLAGS,
__EM_A_PS_MAX,
EM_A_PS_MAX = (__EM_A_PS_MAX - 1)
};
enum {
EM_CMD_GET_PDS = 1,
EM_CMD_GET_PD_TABLE,
EM_CMD_PD_CREATED,
EM_CMD_PD_UPDATED,
EM_CMD_PD_DELETED,
__EM_CMD_MAX,
EM_CMD_MAX = (__EM_CMD_MAX - 1)
};
#define EM_MCGRP_EVENT "event"
#endif /* _UAPI_LINUX_ENERGY_MODEL_H */

135
kernel/power/em_netlink.c
View File

@@ -12,27 +12,31 @@
#include <linux/energy_model.h>
#include <net/sock.h>
#include <net/genetlink.h>
#include <uapi/linux/energy_model.h>
#include <uapi/linux/dev_energymodel.h>
#include "em_netlink.h"
#include "em_netlink_autogen.h"
#define EM_A_PD_CPUS_LEN 256
#define DEV_ENERGYMODEL_A_PERF_DOMAIN_CPUS_LEN 256
/*************************** Command encoding ********************************/
static int __em_nl_get_pd_size(struct em_perf_domain *pd, void *data)
{
char cpus_buf[EM_A_PD_CPUS_LEN];
char cpus_buf[DEV_ENERGYMODEL_A_PERF_DOMAIN_CPUS_LEN];
int *tot_msg_sz = data;
int msg_sz, cpus_sz;
cpus_sz = snprintf(cpus_buf, sizeof(cpus_buf), "%*pb",
cpumask_pr_args(to_cpumask(pd->cpus)));
msg_sz = nla_total_size(0) + /* EM_A_PDS_PD */
nla_total_size(sizeof(u32)) + /* EM_A_PD_PD_ID */
nla_total_size_64bit(sizeof(u64)) + /* EM_A_PD_FLAGS */
nla_total_size(cpus_sz); /* EM_A_PD_CPUS */
msg_sz = nla_total_size(0) +
/* DEV_ENERGYMODEL_A_PERF_DOMAINS_PERF_DOMAIN */
nla_total_size(sizeof(u32)) +
/* DEV_ENERGYMODEL_A_PERF_DOMAIN_PERF_DOMAIN_ID */
nla_total_size_64bit(sizeof(u64)) +
/* DEV_ENERGYMODEL_A_PERF_DOMAIN_FLAGS */
nla_total_size(cpus_sz);
/* DEV_ENERGYMODEL_A_PERF_DOMAIN_CPUS */
*tot_msg_sz += nlmsg_total_size(genlmsg_msg_size(msg_sz));
return 0;
@@ -40,23 +44,26 @@ static int __em_nl_get_pd_size(struct em_perf_domain *pd, void *data)
static int __em_nl_get_pd(struct em_perf_domain *pd, void *data)
{
char cpus_buf[EM_A_PD_CPUS_LEN];
char cpus_buf[DEV_ENERGYMODEL_A_PERF_DOMAIN_CPUS_LEN];
struct sk_buff *msg = data;
struct nlattr *entry;
entry = nla_nest_start(msg, EM_A_PDS_PD);
entry = nla_nest_start(msg,
DEV_ENERGYMODEL_A_PERF_DOMAINS_PERF_DOMAIN);
if (!entry)
goto out_cancel_nest;
if (nla_put_u32(msg, EM_A_PD_PD_ID, pd->id))
if (nla_put_u32(msg, DEV_ENERGYMODEL_A_PERF_DOMAIN_PERF_DOMAIN_ID,
pd->id))
goto out_cancel_nest;
if (nla_put_u64_64bit(msg, EM_A_PD_FLAGS, pd->flags, EM_A_PD_PAD))
if (nla_put_u64_64bit(msg, DEV_ENERGYMODEL_A_PERF_DOMAIN_FLAGS,
pd->flags, DEV_ENERGYMODEL_A_PERF_DOMAIN_PAD))
goto out_cancel_nest;
snprintf(cpus_buf, sizeof(cpus_buf), "%*pb",
cpumask_pr_args(to_cpumask(pd->cpus)));
if (nla_put_string(msg, EM_A_PD_CPUS, cpus_buf))
if (nla_put_string(msg, DEV_ENERGYMODEL_A_PERF_DOMAIN_CPUS, cpus_buf))
goto out_cancel_nest;
nla_nest_end(msg, entry);
@@ -69,7 +76,8 @@ out_cancel_nest:
return -EMSGSIZE;
}
int em_nl_get_pds_doit(struct sk_buff *skb, struct genl_info *info)
int dev_energymodel_nl_get_perf_domains_doit(struct sk_buff *skb,
struct genl_info *info)
{
struct sk_buff *msg;
void *hdr;
@@ -82,7 +90,7 @@ int em_nl_get_pds_doit(struct sk_buff *skb, struct genl_info *info)
if (!msg)
return -ENOMEM;
hdr = genlmsg_put_reply(msg, info, &em_nl_family, 0, cmd);
hdr = genlmsg_put_reply(msg, info, &dev_energymodel_nl_family, 0, cmd);
if (!hdr)
goto out_free_msg;
@@ -107,10 +115,10 @@ static struct em_perf_domain *__em_nl_get_pd_table_id(struct nlattr **attrs)
struct em_perf_domain *pd;
int id;
if (!attrs[EM_A_PD_TABLE_PD_ID])
if (!attrs[DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID])
return NULL;
id = nla_get_u32(attrs[EM_A_PD_TABLE_PD_ID]);
id = nla_get_u32(attrs[DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID]);
pd = em_perf_domain_get_by_id(id);
return pd;
}
@@ -119,25 +127,34 @@ static int __em_nl_get_pd_table_size(const struct em_perf_domain *pd)
{
int id_sz, ps_sz;
id_sz = nla_total_size(sizeof(u32)); /* EM_A_PD_TABLE_PD_ID */
ps_sz = nla_total_size(0) + /* EM_A_PD_TABLE_PS */
nla_total_size_64bit(sizeof(u64)) + /* EM_A_PS_PERFORMANCE */
nla_total_size_64bit(sizeof(u64)) + /* EM_A_PS_FREQUENCY */
nla_total_size_64bit(sizeof(u64)) + /* EM_A_PS_POWER */
nla_total_size_64bit(sizeof(u64)) + /* EM_A_PS_COST */
nla_total_size_64bit(sizeof(u64)); /* EM_A_PS_FLAGS */
id_sz = nla_total_size(sizeof(u32));
/* DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID */
ps_sz = nla_total_size(0) +
/* DEV_ENERGYMODEL_A_PERF_TABLE_PERF_STATE */
nla_total_size_64bit(sizeof(u64)) +
/* DEV_ENERGYMODEL_A_PERF_STATE_PERFORMANCE */
nla_total_size_64bit(sizeof(u64)) +
/* DEV_ENERGYMODEL_A_PERF_STATE_FREQUENCY */
nla_total_size_64bit(sizeof(u64)) +
/* DEV_ENERGYMODEL_A_PERF_STATE_POWER */
nla_total_size_64bit(sizeof(u64)) +
/* DEV_ENERGYMODEL_A_PERF_STATE_COST */
nla_total_size_64bit(sizeof(u64));
/* DEV_ENERGYMODEL_A_PERF_STATE_FLAGS */
ps_sz *= pd->nr_perf_states;
return nlmsg_total_size(genlmsg_msg_size(id_sz + ps_sz));
}
static int __em_nl_get_pd_table(struct sk_buff *msg, const struct em_perf_domain *pd)
static
int __em_nl_get_pd_table(struct sk_buff *msg, const struct em_perf_domain *pd)
{
struct em_perf_state *table, *ps;
struct nlattr *entry;
int i;
if (nla_put_u32(msg, EM_A_PD_TABLE_PD_ID, pd->id))
if (nla_put_u32(msg, DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID,
pd->id))
goto out_err;
rcu_read_lock();
@@ -146,24 +163,35 @@ static int __em_nl_get_pd_table(struct sk_buff *msg, const struct em_perf_domain
for (i = 0; i < pd->nr_perf_states; i++) {
ps = &table[i];
entry = nla_nest_start(msg, EM_A_PD_TABLE_PS);
entry = nla_nest_start(msg,
DEV_ENERGYMODEL_A_PERF_TABLE_PERF_STATE);
if (!entry)
goto out_unlock_ps;
if (nla_put_u64_64bit(msg, EM_A_PS_PERFORMANCE,
ps->performance, EM_A_PS_PAD))
if (nla_put_u64_64bit(msg,
DEV_ENERGYMODEL_A_PERF_STATE_PERFORMANCE,
ps->performance,
DEV_ENERGYMODEL_A_PERF_STATE_PAD))
goto out_cancel_ps_nest;
if (nla_put_u64_64bit(msg, EM_A_PS_FREQUENCY,
ps->frequency, EM_A_PS_PAD))
if (nla_put_u64_64bit(msg,
DEV_ENERGYMODEL_A_PERF_STATE_FREQUENCY,
ps->frequency,
DEV_ENERGYMODEL_A_PERF_STATE_PAD))
goto out_cancel_ps_nest;
if (nla_put_u64_64bit(msg, EM_A_PS_POWER,
ps->power, EM_A_PS_PAD))
if (nla_put_u64_64bit(msg,
DEV_ENERGYMODEL_A_PERF_STATE_POWER,
ps->power,
DEV_ENERGYMODEL_A_PERF_STATE_PAD))
goto out_cancel_ps_nest;
if (nla_put_u64_64bit(msg, EM_A_PS_COST,
ps->cost, EM_A_PS_PAD))
if (nla_put_u64_64bit(msg,
DEV_ENERGYMODEL_A_PERF_STATE_COST,
ps->cost,
DEV_ENERGYMODEL_A_PERF_STATE_PAD))
goto out_cancel_ps_nest;
if (nla_put_u64_64bit(msg, EM_A_PS_FLAGS,
ps->flags, EM_A_PS_PAD))
if (nla_put_u64_64bit(msg,
DEV_ENERGYMODEL_A_PERF_STATE_FLAGS,
ps->flags,
DEV_ENERGYMODEL_A_PERF_STATE_PAD))
goto out_cancel_ps_nest;
nla_nest_end(msg, entry);
@@ -179,7 +207,8 @@ out_err:
return -EMSGSIZE;
}
int em_nl_get_pd_table_doit(struct sk_buff *skb, struct genl_info *info)
int dev_energymodel_nl_get_perf_table_doit(struct sk_buff *skb,
struct genl_info *info)
{
int cmd = info->genlhdr->cmd;
int msg_sz, ret = -EMSGSIZE;
@@ -197,7 +226,7 @@ int em_nl_get_pd_table_doit(struct sk_buff *skb, struct genl_info *info)
if (!msg)
return -ENOMEM;
hdr = genlmsg_put_reply(msg, info, &em_nl_family, 0, cmd);
hdr = genlmsg_put_reply(msg, info, &dev_energymodel_nl_family, 0, cmd);
if (!hdr)
goto out_free_msg;
@@ -221,7 +250,7 @@ static void __em_notify_pd_table(const struct em_perf_domain *pd, int ntf_type)
int msg_sz, ret = -EMSGSIZE;
void *hdr;
if (!genl_has_listeners(&em_nl_family, &init_net, EM_NLGRP_EVENT))
if (!genl_has_listeners(&dev_energymodel_nl_family, &init_net, DEV_ENERGYMODEL_NLGRP_EVENT))
return;
msg_sz = __em_nl_get_pd_table_size(pd);
@@ -230,7 +259,7 @@ static void __em_notify_pd_table(const struct em_perf_domain *pd, int ntf_type)
if (!msg)
return;
hdr = genlmsg_put(msg, 0, 0, &em_nl_family, 0, ntf_type);
hdr = genlmsg_put(msg, 0, 0, &dev_energymodel_nl_family, 0, ntf_type);
if (!hdr)
goto out_free_msg;
@@ -240,28 +269,28 @@ static void __em_notify_pd_table(const struct em_perf_domain *pd, int ntf_type)
genlmsg_end(msg, hdr);
genlmsg_multicast(&em_nl_family, msg, 0, EM_NLGRP_EVENT, GFP_KERNEL);
genlmsg_multicast(&dev_energymodel_nl_family, msg, 0,
DEV_ENERGYMODEL_NLGRP_EVENT, GFP_KERNEL);
return;
out_free_msg:
nlmsg_free(msg);
return;
}
void em_notify_pd_created(const struct em_perf_domain *pd)
{
__em_notify_pd_table(pd, EM_CMD_PD_CREATED);
__em_notify_pd_table(pd, DEV_ENERGYMODEL_CMD_PERF_DOMAIN_CREATED);
}
void em_notify_pd_updated(const struct em_perf_domain *pd)
{
__em_notify_pd_table(pd, EM_CMD_PD_UPDATED);
__em_notify_pd_table(pd, DEV_ENERGYMODEL_CMD_PERF_DOMAIN_UPDATED);
}
static int __em_notify_pd_deleted_size(const struct em_perf_domain *pd)
{
int id_sz = nla_total_size(sizeof(u32)); /* EM_A_PD_TABLE_PD_ID */
int id_sz = nla_total_size(sizeof(u32)); /* DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID */
return nlmsg_total_size(genlmsg_msg_size(id_sz));
}
@@ -272,7 +301,8 @@ void em_notify_pd_deleted(const struct em_perf_domain *pd)
void *hdr;
int msg_sz;
if (!genl_has_listeners(&em_nl_family, &init_net, EM_NLGRP_EVENT))
if (!genl_has_listeners(&dev_energymodel_nl_family, &init_net,
DEV_ENERGYMODEL_NLGRP_EVENT))
return;
msg_sz = __em_notify_pd_deleted_size(pd);
@@ -281,28 +311,29 @@ void em_notify_pd_deleted(const struct em_perf_domain *pd)
if (!msg)
return;
hdr = genlmsg_put(msg, 0, 0, &em_nl_family, 0, EM_CMD_PD_DELETED);
hdr = genlmsg_put(msg, 0, 0, &dev_energymodel_nl_family, 0,
DEV_ENERGYMODEL_CMD_PERF_DOMAIN_DELETED);
if (!hdr)
goto out_free_msg;
if (nla_put_u32(msg, EM_A_PD_TABLE_PD_ID, pd->id)) {
if (nla_put_u32(msg, DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID,
pd->id))
goto out_free_msg;
}
genlmsg_end(msg, hdr);
genlmsg_multicast(&em_nl_family, msg, 0, EM_NLGRP_EVENT, GFP_KERNEL);
genlmsg_multicast(&dev_energymodel_nl_family, msg, 0,
DEV_ENERGYMODEL_NLGRP_EVENT, GFP_KERNEL);
return;
out_free_msg:
nlmsg_free(msg);
return;
}
/**************************** Initialization *********************************/
static int __init em_netlink_init(void)
{
return genl_register_family(&em_nl_family);
return genl_register_family(&dev_energymodel_nl_family);
}
postcore_initcall(em_netlink_init);

44
kernel/power/em_netlink_autogen.c
View File

@@ -1,6 +1,6 @@
// SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
/* Do not edit directly, auto-generated from: */
/* Documentation/netlink/specs/em.yaml */
/* Documentation/netlink/specs/dev-energymodel.yaml */
/* YNL-GEN kernel source */
/* To regenerate run: tools/net/ynl/ynl-regen.sh */
@@ -9,41 +9,41 @@
#include "em_netlink_autogen.h"
#include <uapi/linux/energy_model.h>
#include <uapi/linux/dev_energymodel.h>
/* EM_CMD_GET_PD_TABLE - do */
static const struct nla_policy em_get_pd_table_nl_policy[EM_A_PD_TABLE_PD_ID + 1] = {
[EM_A_PD_TABLE_PD_ID] = { .type = NLA_U32, },
/* DEV_ENERGYMODEL_CMD_GET_PERF_TABLE - do */
static const struct nla_policy dev_energymodel_get_perf_table_nl_policy[DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID + 1] = {
[DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID] = { .type = NLA_U32, },
};
/* Ops table for em */
static const struct genl_split_ops em_nl_ops[] = {
/* Ops table for dev_energymodel */
static const struct genl_split_ops dev_energymodel_nl_ops[] = {
{
.cmd = EM_CMD_GET_PDS,
.doit = em_nl_get_pds_doit,
.cmd = DEV_ENERGYMODEL_CMD_GET_PERF_DOMAINS,
.doit = dev_energymodel_nl_get_perf_domains_doit,
.flags = GENL_CMD_CAP_DO,
},
{
.cmd = EM_CMD_GET_PD_TABLE,
.doit = em_nl_get_pd_table_doit,
.policy = em_get_pd_table_nl_policy,
.maxattr = EM_A_PD_TABLE_PD_ID,
.cmd = DEV_ENERGYMODEL_CMD_GET_PERF_TABLE,
.doit = dev_energymodel_nl_get_perf_table_doit,
.policy = dev_energymodel_get_perf_table_nl_policy,
.maxattr = DEV_ENERGYMODEL_A_PERF_TABLE_PERF_DOMAIN_ID,
.flags = GENL_CMD_CAP_DO,
},
};
static const struct genl_multicast_group em_nl_mcgrps[] = {
[EM_NLGRP_EVENT] = { "event", },
static const struct genl_multicast_group dev_energymodel_nl_mcgrps[] = {
[DEV_ENERGYMODEL_NLGRP_EVENT] = { "event", },
};
struct genl_family em_nl_family __ro_after_init = {
.name = EM_FAMILY_NAME,
.version = EM_FAMILY_VERSION,
struct genl_family dev_energymodel_nl_family __ro_after_init = {
.name = DEV_ENERGYMODEL_FAMILY_NAME,
.version = DEV_ENERGYMODEL_FAMILY_VERSION,
.netnsok = true,
.parallel_ops = true,
.module = THIS_MODULE,
.split_ops = em_nl_ops,
.n_split_ops = ARRAY_SIZE(em_nl_ops),
.mcgrps = em_nl_mcgrps,
.n_mcgrps = ARRAY_SIZE(em_nl_mcgrps),
.split_ops = dev_energymodel_nl_ops,
.n_split_ops = ARRAY_SIZE(dev_energymodel_nl_ops),
.mcgrps = dev_energymodel_nl_mcgrps,
.n_mcgrps = ARRAY_SIZE(dev_energymodel_nl_mcgrps),
};

20
kernel/power/em_netlink_autogen.h
View File

@@ -1,24 +1,26 @@
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
/* Do not edit directly, auto-generated from: */
/* Documentation/netlink/specs/em.yaml */
/* Documentation/netlink/specs/dev-energymodel.yaml */
/* YNL-GEN kernel header */
/* To regenerate run: tools/net/ynl/ynl-regen.sh */
#ifndef _LINUX_EM_GEN_H
#define _LINUX_EM_GEN_H
#ifndef _LINUX_DEV_ENERGYMODEL_GEN_H
#define _LINUX_DEV_ENERGYMODEL_GEN_H
#include <net/netlink.h>
#include <net/genetlink.h>
#include <uapi/linux/energy_model.h>
#include <uapi/linux/dev_energymodel.h>
int em_nl_get_pds_doit(struct sk_buff *skb, struct genl_info *info);
int em_nl_get_pd_table_doit(struct sk_buff *skb, struct genl_info *info);
int dev_energymodel_nl_get_perf_domains_doit(struct sk_buff *skb,
struct genl_info *info);
int dev_energymodel_nl_get_perf_table_doit(struct sk_buff *skb,
struct genl_info *info);
enum {
EM_NLGRP_EVENT,
DEV_ENERGYMODEL_NLGRP_EVENT,
};
extern struct genl_family em_nl_family;
extern struct genl_family dev_energymodel_nl_family;
#endif /* _LINUX_EM_GEN_H */
#endif /* _LINUX_DEV_ENERGYMODEL_GEN_H */