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)
75 lines
1.7 KiB
C
75 lines
1.7 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.
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* See http://www.gnu.org/licenses/gpl-2.0.html for more details.
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*/
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#include <mt-plat/perf_tracker.h>
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#include "lowmem_hint.h"
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#include <linux/module.h>
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#ifdef CONFIG_MTK_CORE_CTL
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#include <mt-plat/core_ctl.h>
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#endif
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static u64 checked_timestamp;
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static bool long_trace_check_flag;
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static DEFINE_SPINLOCK(check_lock);
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static inline bool tracker_do_check(u64 wallclock)
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{
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bool do_check = false;
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unsigned long flags;
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/* check interval */
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spin_lock_irqsave(&check_lock, flags);
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if ((s64)(wallclock - checked_timestamp)
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>= (s64)(2 * NSEC_PER_MSEC)) {
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checked_timestamp = wallclock;
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long_trace_check_flag = !long_trace_check_flag;
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do_check = true;
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}
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spin_unlock_irqrestore(&check_lock, flags);
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return do_check;
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}
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void perf_tracker(u64 wallclock)
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{
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long mm_available = -1, mm_free = -1;
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if (!tracker_do_check(wallclock))
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return;
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#ifdef CONFIG_MTK_CORE_CTL
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/* period is 8ms */
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if (hit_long_check())
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core_ctl_tick(wallclock);
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#endif
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trigger_lowmem_hint(&mm_available, &mm_free);
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__perf_tracker(wallclock, mm_available, mm_free);
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}
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#ifdef CONFIG_MTK_PERF_TRACKER
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bool hit_long_check(void)
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{
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bool do_check = false;
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unsigned long flags;
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spin_lock_irqsave(&check_lock, flags);
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if (long_trace_check_flag)
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do_check = true;
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spin_unlock_irqrestore(&check_lock, flags);
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return do_check;
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}
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#endif
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