mirror of
https://github.com/openharmony/kernel_linux_common_modules.git
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openharmony_ci
130 lines
2.8 KiB
C
130 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* include/linux/sched/qos_ctrl.h
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*
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* Copyright (c) 2022 Huawei Device Co., Ltd.
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*/
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#ifndef _QOS_CTRL_H
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#define _QOS_CTRL_H
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#include <linux/sched.h>
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#include <linux/fs.h>
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enum ioctl_abi_format_qos{
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QOS_IOCTL_ABI_ARM32,
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QOS_IOCTL_ABI_AARCH64,
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};
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enum qos_ctrl_cmdid {
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QOS_CTRL = 1,
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QOS_POLICY,
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QOS_CTRL_MAX_NR
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};
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#define QOS_CTRL_IPC_MAGIG 0xCC
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#define QOS_CTRL_BASIC_OPERATION \
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_IOWR(QOS_CTRL_IPC_MAGIG, QOS_CTRL, struct qos_ctrl_data)
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#define QOS_CTRL_POLICY_OPERATION \
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_IOWR(QOS_CTRL_IPC_MAGIG, QOS_POLICY, struct qos_policy_datas)
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#define NO_QOS -1
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#define NR_QOS 7
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#define NR_RT_QOS 2
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#define MIN_RT_QOS_LEVEL (NR_QOS - NR_RT_QOS)
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#define QOS_NUM_MAX 2000
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enum qos_manipulate_type {
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QOS_APPLY = 1,
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QOS_LEAVE,
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QOS_GET,
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QOS_OPERATION_CMD_MAX_NR,
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};
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#ifndef CONFIG_QOS_POLICY_MAX_NR
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#define QOS_POLICYS_COUNT 5
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#else
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#define QOS_POLICYS_COUNT CONFIG_QOS_POLICY_MAX_NR
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#endif
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/*
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* keep match with auth_status
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*
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* range (QOS_POLICY_SYSTEM, QOS_POLICY_MAX_NR) could defined by user
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* use ctrl_qos_policy
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*/
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enum qos_policy_type {
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QOS_POLICY_DEFAULT = 1, /* reserved for "NO QOS" */
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QOS_POLICY_SYSTEM = 2, /* reserved for ROOT and SYSTEM */
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QOS_POLICY_MAX_NR = QOS_POLICYS_COUNT,
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};
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struct qos_ctrl_data {
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int pid;
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/*
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* type: operation type, see qos_manipulate_type
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* level: valid from 1 to NR_QOS. Larger value, more aggressive supply
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*/
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unsigned int type;
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/*
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* user space level, range from [1, NR_QOS]
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*
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* NOTICE!!!:
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* minus 1 before use in kernel, so the kernel range is [0, NR_QOS)
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*/
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unsigned int level;
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int qos;
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};
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struct qos_policy_data {
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int nice;
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int latency_nice;
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int uclamp_min;
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int uclamp_max;
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int rt_sched_priority;
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int policy;
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};
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#define QOS_FLAG_NICE 0x01
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#define QOS_FLAG_LATENCY_NICE 0x02
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#define QOS_FLAG_UCLAMP 0x04
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#define QOS_FLAG_RT 0x08
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#define QOS_FLAG_ALL (QOS_FLAG_NICE | \
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QOS_FLAG_LATENCY_NICE | \
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QOS_FLAG_UCLAMP | \
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QOS_FLAG_RT)
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struct qos_policy_datas {
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/*
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* policy_type: id for qos policy, valid from [1, QOS_POLICY_MAX_NR)
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* policy_flag: control valid sched attr for policy, QOS_FLAG_ALL for whole access
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* policys: sched params for specific level qos, minus 1 for matching struct in kerenl
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*/
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int policy_type;
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unsigned int policy_flag;
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struct qos_policy_data policys[NR_QOS];
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};
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struct auth_struct;
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int qos_apply(struct qos_ctrl_data *data);
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int qos_leave(struct qos_ctrl_data *data);
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int qos_get(struct qos_ctrl_data *data);
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void qos_switch(struct auth_struct *auth, int target_status);
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void init_task_qos(struct task_struct *p);
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void sched_exit_qos_list(struct task_struct *p);
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void remove_qos_tasks(struct auth_struct *auth);
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long do_qos_ctrl_ioctl(int abi, struct file *file, unsigned int cmd, unsigned long arg);
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#endif /* _QOS_CTRL_H */
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