threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
86 lines
2.9 KiB
C
86 lines
2.9 KiB
C
/*
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* Copyright (C) 2018 MediaTek Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef LOAD_TRACK_H
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#define LOAD_TRACK_H
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#include <linux/cpumask.h>
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#ifdef CONFIG_MTK_LOAD_TRACKER
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/**
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* DESCRIPTION:
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* This function MIGHT SLEEP.
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* Register a Loading Tracking callback function fn of polling
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* time polling_ms. Callback function fn will be called per
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* polling_ms with loading value.
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* Callback function fn: loading may get -EOVERFLOW if idle/wall
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* counter overflowed, otherwise loading will be between 0~100.
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*
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* RETURN VALUE:
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* On Success zero is returned.
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*
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* ERRORS:
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* ENOMEM Out of memory, registration fail.
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* EINVAL a. Duplicated registration. reg_loading_tracking and
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* unreg_loading_tracking must be paired.
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* b. fn == NULL or polling_ms == 0 or load_track_init fail
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* c. Function not implemented. Please check kernel config
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* CONFIG_MTK_LOAD_TRACKER
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*/
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#define reg_loading_tracking(p_fn, polling_ms, cpu_mask) \
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reg_loading_tracking_sp(p_fn, polling_ms, cpu_mask, __func__)
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extern int reg_loading_tracking_sp(void (*fn)(int mask_loading, int loading),
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unsigned long polling_ms, const struct cpumask *cpu_mask, const char *caller);
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/**
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* DESCRIPTION:
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* This function MIGHT SLEEP.
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* Unregister a Loading Tracking callback function fn.
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* Loading Tracker will disable callback and free related memory.
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* For resource saving, please make sure to call unreg_loading_tracking
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* if you don't need to be informed.
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*
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* RETURN VALUE:
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* On Success zero is returned.
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*
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* ERRORS:
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* EINVAL a. Duplicated unregistration. reg_loading_tracking and
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* unreg_loading_tracking must be paired.
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* b. fn == NULL or load_track_init fail
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* c. Function not implemented. Please check kernel config
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* CONFIG_MTK_LOAD_TRACKER
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*/
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#define unreg_loading_tracking(p_fn) \
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unreg_loading_tracking_sp(p_fn, __func__)
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extern int unreg_loading_tracking_sp(void (*fn)(int mask_loading, int loading),
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const char *caller);
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#else
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#define reg_loading_tracking(p_fn, polling_ms, cpu_mask) \
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reg_loading_tracking_sp(p_fn, polling_ms, cpu_mask, __func__)
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static inline int reg_loading_tracking_sp(void (*fn)(int mask_loading, int loading),
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unsigned long polling_ms, const struct cpumask *cpu_mask, const char *caller)
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{ return -EINVAL; }
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#define reg_loading_tracking(p_fn, polling_ms, cpu_mask) \
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reg_loading_tracking_sp(p_fn, polling_ms, cpu_mask, __func__)
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static inline int unreg_loading_tracking_sp(void (*fn)(int mask_loading, int loading),
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const char *caller)
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{ return -EINVAL; }
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#endif
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#endif
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