124 lines
2.7 KiB
C
124 lines
2.7 KiB
C
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/*
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* Copyright (c) 2020 AIIT XUOS Lab
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* XiUOS is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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/**
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* @file: tick.c
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* @brief: system heartbeat_ticks update
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* @version: 1.0
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* @author: AIIT XUOS Lab
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* @date: 2020/3/15
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*
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*/
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#include <xiuos.h>
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#include <xs_spinlock.h>
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#include <xs_delay.h>
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#ifdef ARCH_SMP
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static x_ticks_t heartbeat_ticks[CPU_NUMBERS] = {0};
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#else
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static x_ticks_t heartbeat_ticks = 0;
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#endif
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#ifdef ARCH_SMP
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#define UPDATE_GLOBAL_HEARTBEAT() \
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do { \
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heartbeat_ticks[GetCpuId()]++; \
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} while(0);
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#else
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#define UPDATE_GLOBAL_HEARTBEAT() \
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do { \
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heartbeat_ticks ++; \
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} while(0);
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#endif
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/**
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* get haertbeat count
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*
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* @return CurrentTicks
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*/
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x_ticks_t CurrentTicksGain(void)
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{
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#ifdef ARCH_SMP
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return heartbeat_ticks[GetCpuId()];
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#else
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return heartbeat_ticks;
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#endif
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}
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/**
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* this function increases global systick in tick interrupt,and process task time slice
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*
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*/
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void TickAndTaskTimesliceUpdate(void)
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{
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struct TaskDescriptor *task = NONE;
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UPDATE_GLOBAL_HEARTBEAT();
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#if defined(SCHED_POLICY_FIFO)
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FifoTaskTimesliceUpdate();
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#elif defined (SCHED_POLICY_RR)
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task = GetKTaskDescriptor();
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RoundRobinTaskTimesliceUpdate(task);
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#elif defined (SCHED_POLICY_RR_REMAINSLICE)
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task = GetKTaskDescriptor();
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RoundRobinRemainTaskTimesliceUpdate(task);
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#endif
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CheckTaskDelay();
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#ifdef KERNEL_SOFTTIMER
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CheckTimerList();
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#endif
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}
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/**
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* This function will convert ms to ticks.
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*
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* @param ms time need to be converted
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* @return ticks
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*/
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#define MIN_TICKS 1
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x_ticks_t CalculteTickFromTimeMs(uint32 ms)
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{
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uint32 tmp = 0;
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x_ticks_t ticks = 0;
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ticks = (uint32)(((uint64)(ms * TICK_PER_SECOND)) / 1000) ;
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if (0 == ticks) {
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ticks = MIN_TICKS;
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} else {
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tmp = (uint32)(((uint64)(ms * TICK_PER_SECOND)) % 1000);
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if(tmp >= 5 && tmp <= 9) {
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ticks = ticks + MIN_TICKS;
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}
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}
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return ticks;
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}
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/**
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* This function will convert ticks to ms.
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*
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* @param ticks ticks need to be converted
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* @return ms
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*/
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uint32 CalculteTimeMsFromTick(x_ticks_t ticks)
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{
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uint32 ms = 0;
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ms = (uint32)(((uint64)(ticks * 1000)) / TICK_PER_SECOND);
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return ms;
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}
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