558 lines
14 KiB
C
558 lines
14 KiB
C
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/*
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* Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "los_cpup_pri.h"
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#include "los_process_pri.h"
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#include "los_base.h"
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#include "los_swtmr.h"
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#ifdef __cplusplus
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#if __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#ifdef LOSCFG_KERNEL_CPUP
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LITE_OS_SEC_BSS STATIC UINT16 swtmrID;
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LITE_OS_SEC_BSS STATIC UINT16 cpupInitFlg = 0;
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LITE_OS_SEC_BSS OsCpupCB *g_cpup = NULL;
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LITE_OS_SEC_BSS STATIC UINT16 cpupMaxNum;
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LITE_OS_SEC_BSS STATIC UINT16 hisPos = 0; /* current Sampling point of historyTime */
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LITE_OS_SEC_BSS STATIC UINT64 cpuHistoryTime[OS_CPUP_HISTORY_RECORD_NUM + 1];
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LITE_OS_SEC_BSS STATIC UINT64 startCycles = 0;
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#ifdef LOSCFG_CPUP_INCLUDE_IRQ
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LITE_OS_SEC_BSS STATIC UINT64 timeInIrqPerProcessSwitch[LOSCFG_KERNEL_CORE_NUM];
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LITE_OS_SEC_BSS STATIC UINT64 intTimeStart[LOSCFG_KERNEL_CORE_NUM];
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#endif
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#define OS_CPUP_UNUSED 0x0U
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#define OS_CPUP_USED 0x1U
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#define HIGH_BITS 32
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#define CPUP_PRE_POS(pos) (((pos) == 0) ? (OS_CPUP_HISTORY_RECORD_NUM - 1) : ((pos) - 1))
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#define CPUP_POST_POS(pos) (((pos) == (OS_CPUP_HISTORY_RECORD_NUM - 1)) ? 0 : ((pos) + 1))
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LITE_OS_SEC_TEXT_INIT VOID OsCpupGuard(VOID)
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{
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UINT16 prevPos;
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UINT16 loop;
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UINT32 pid;
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UINT32 intSave;
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UINT64 curCycle;
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SCHEDULER_LOCK(intSave);
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curCycle = OsGetCpuCycle();
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prevPos = hisPos;
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hisPos = CPUP_POST_POS(hisPos);
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cpuHistoryTime[prevPos] = curCycle;
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for (loop = 0; loop < cpupMaxNum; loop++) {
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g_cpup[loop].historyTime[prevPos] = g_cpup[loop].allTime;
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}
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for (loop = 0; loop < LOSCFG_KERNEL_CORE_NUM; loop++) {
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pid = OsCpuProcessIDGetUnsafe(loop);
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/* reacquire the cycle to prevent flip */
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curCycle = OsGetCpuCycle();
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g_cpup[pid].historyTime[prevPos] += curCycle - g_cpup[pid].startTime;
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#ifdef LOSCFG_CPUP_INCLUDE_IRQ
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g_cpup[pid].historyTime[prevPos] -= timeInIrqPerProcessSwitch[loop];
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#endif
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}
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SCHEDULER_UNLOCK(intSave);
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}
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LITE_OS_SEC_TEXT_INIT VOID OsCpupGuardCreator(VOID)
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{
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(VOID)LOS_SwtmrCreate(LOSCFG_BASE_CORE_TICK_PER_SECOND, LOS_SWTMR_MODE_PERIOD,
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(SWTMR_PROC_FUNC)OsCpupGuard, &swtmrID, 0);
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(VOID)LOS_SwtmrStart(swtmrID);
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}
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/*
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* Description: initialization of CPUP
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* Return : LOS_OK or Error Information
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*/
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LITE_OS_SEC_TEXT_INIT UINT32 OsCpupInit(VOID)
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{
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UINT32 size;
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cpupMaxNum = LOSCFG_BASE_CORE_PROCESS_LIMIT;
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#ifdef LOSCFG_CPUP_INCLUDE_IRQ
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cpupMaxNum += OS_HWI_MAX_NUM;
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#endif
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/* every process has only one record, and it won't operated at the same time */
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size = cpupMaxNum * sizeof(OsCpupCB);
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g_cpup = (OsCpupCB *)LOS_MemAlloc(m_aucSysMem0, size);
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if (g_cpup == NULL) {
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return LOS_ERRNO_CPUP_NO_MEMORY;
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}
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(VOID)memset_s(g_cpup, size, 0, size);
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cpupInitFlg = 1;
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return LOS_OK;
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}
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LITE_OS_SEC_TEXT VOID OsCpupSet(UINT32 id)
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{
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g_cpup[id].id = id;
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g_cpup[id].status = OS_CPUP_USED;
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}
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LITE_OS_SEC_TEXT VOID OsCpupClean(UINT32 id)
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{
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(VOID)memset_s((VOID *)&g_cpup[id], sizeof(OsCpupCB), 0, sizeof(OsCpupCB));
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}
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LITE_OS_SEC_TEXT_INIT VOID LOS_CpupReset(VOID)
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{
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UINT32 cpupIndex;
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UINT32 maxNum = cpupMaxNum;
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UINT16 loop;
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UINT64 curCycle;
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UINT32 intSave;
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if (g_cpup == NULL) {
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return;
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}
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cpupInitFlg = 0;
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intSave = LOS_IntLock();
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(VOID)LOS_SwtmrStop(swtmrID);
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curCycle = OsGetCpuCycle();
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for (loop = 0; loop < (OS_CPUP_HISTORY_RECORD_NUM + 1); loop++) {
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cpuHistoryTime[loop] = curCycle;
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}
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for (cpupIndex = 0; cpupIndex < maxNum; cpupIndex++) {
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g_cpup[cpupIndex].startTime = curCycle;
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g_cpup[cpupIndex].allTime = curCycle;
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for (loop = 0; loop < (OS_CPUP_HISTORY_RECORD_NUM + 1); loop++) {
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g_cpup[cpupIndex].historyTime[loop] = curCycle;
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}
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}
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#ifdef LOSCFG_CPUP_INCLUDE_IRQ
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for (loop = 0; loop < LOSCFG_KERNEL_CORE_NUM; loop++) {
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timeInIrqPerProcessSwitch[loop] = 0;
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}
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#endif
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(VOID)LOS_SwtmrStart(swtmrID);
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LOS_IntRestore(intSave);
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cpupInitFlg = 1;
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return;
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}
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LITE_OS_SEC_TEXT_MINOR VOID OsSetCpuCycle(UINT64 cycles)
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{
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startCycles = cycles;
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return;
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}
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/*
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* Description: get current cycles count
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* Return : current cycles count
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*/
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LITE_OS_SEC_TEXT_MINOR UINT64 OsGetCpuCycle(VOID)
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{
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UINT32 high;
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UINT32 low;
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UINT64 cycles;
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LOS_GetCpuCycle(&high, &low);
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cycles = ((UINT64)high << HIGH_BITS) + low;
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if (startCycles == 0) {
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startCycles = cycles;
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}
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/*
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* The cycles should keep growing, if the checking failed,
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* it mean LOS_GetCpuCycle has the problem which should be fixed.
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*/
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LOS_ASSERT(cycles >= startCycles);
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return (cycles - startCycles);
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}
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#ifdef LOSCFG_CPUP_INCLUDE_IRQ
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STATIC VOID OsRemoveInterTimeFromPorcess(UINT32 runPID)
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{
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UINT16 loop;
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UINT32 pid;
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for (loop = 0; loop < LOSCFG_KERNEL_CORE_NUM; loop++) {
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pid = OsCpuProcessIDGetUnsafe(loop);
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if (pid != runPID) {
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continue;
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}
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g_cpup[runPID].allTime -= timeInIrqPerProcessSwitch[loop];
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timeInIrqPerProcessSwitch[loop] = 0;
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}
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}
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#endif
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/*
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* Description: start process to get cycles count in current process begining
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*/
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LITE_OS_SEC_TEXT_MINOR STATIC VOID OsProcessCycleStart(VOID)
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{
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UINT32 pid;
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if (cpupInitFlg == 0) {
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return;
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}
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pid = LOS_GetCurrProcessID();
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g_cpup[pid].id = pid;
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g_cpup[pid].startTime = OsGetCpuCycle();
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return;
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}
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/*
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* Description: quit process and get cycle count
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*/
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LITE_OS_SEC_TEXT_MINOR STATIC VOID OsProcessCycleEnd(VOID)
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{
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UINT16 runTaskCount;
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UINT32 runPID;
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UINT64 cpuCycle;
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LosProcessCB *runProcess = NULL;
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if (cpupInitFlg == 0) {
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return;
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}
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runProcess = OsCurrProcessGet();
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runPID = runProcess->processID;
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if (g_cpup[runPID].startTime == 0) {
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return;
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}
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cpuCycle = OsGetCpuCycle();
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runTaskCount = OS_PROCESS_GET_RUNTASK_COUNT(runProcess->processStatus);
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g_cpup[runPID].allTime += (cpuCycle - g_cpup[runPID].startTime) * runTaskCount;
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#ifdef LOSCFG_CPUP_INCLUDE_IRQ
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OsRemoveInterTimeFromPorcess(runPID);
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#endif
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g_cpup[runPID].startTime = 0;
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return;
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}
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/*
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* Description: start process to get cycles count in current process ending
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*/
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LITE_OS_SEC_TEXT_MINOR VOID OsProcessCycleEndStart(UINT32 newID, UINT16 runTaskCount)
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{
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UINT32 runPID;
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UINT64 cpuCycle;
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OsCpupCB *cpup = NULL;
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if (cpupInitFlg == 0) {
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return;
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}
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LOS_ASSERT(runTaskCount != 0);
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cpuCycle = OsGetCpuCycle();
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runPID = LOS_GetCurrProcessID();
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cpup = &g_cpup[runPID];
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if (cpup->startTime != 0) {
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cpup->allTime += (cpuCycle - cpup->startTime) * runTaskCount;
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cpup->startTime = cpuCycle;
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#ifdef LOSCFG_CPUP_INCLUDE_IRQ
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OsRemoveInterTimeFromPorcess(runPID);
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#endif
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}
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cpup = &g_cpup[newID];
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cpup->id = newID;
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cpup->startTime = cpuCycle;
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return;
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}
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LITE_OS_SEC_TEXT_MINOR STATIC VOID OsCpupGetPos(UINT16 mode, UINT16 *curPosPointer, UINT16 *prePosPointer)
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{
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UINT16 curPos;
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UINT16 tmpPos;
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UINT16 prePos;
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tmpPos = hisPos;
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curPos = CPUP_PRE_POS(tmpPos);
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/*
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* The current postion has nothing to do with the CPUP modes,
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* however, the previous postion differs.
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*/
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switch (mode) {
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case CPUP_LAST_ONE_SECONDS:
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prePos = CPUP_PRE_POS(curPos);
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break;
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case CPUP_LAST_TEN_SECONDS:
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prePos = tmpPos;
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break;
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case CPUP_ALL_TIME:
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/* fall-through */
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default:
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prePos = OS_CPUP_HISTORY_RECORD_NUM;
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break;
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}
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*curPosPointer = curPos;
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*prePosPointer = prePos;
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return;
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}
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LITE_OS_SEC_TEXT_MINOR STATIC INLINE UINT32 OsCpuUsageParaCheck(UINT32 pid)
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{
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if (cpupInitFlg == 0) {
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return LOS_ERRNO_CPUP_NO_INIT;
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}
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if (OS_PID_CHECK_INVALID(pid)) {
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return LOS_ERRNO_CPUP_PID_INVALID;
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}
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/* weather the process is created */
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if (g_cpup[pid].id != pid) {
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return LOS_ERRNO_CPUP_PROCESS_NO_CREATED;
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}
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if (g_cpup[pid].status == OS_CPUP_UNUSED) {
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return LOS_ERRNO_CPUP_PROCESS_NO_CREATED;
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}
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return LOS_OK;
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}
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LITE_OS_SEC_TEXT UINT32 OsHistorySysCpuUsageUnsafe(UINT16 mode)
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{
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UINT64 cpuCycleAll;
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UINT64 idleCycleAll;
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UINT32 cpup = 0;
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UINT16 pos;
|
||
|
|
UINT16 prePos;
|
||
|
|
UINT32 idlePID;
|
||
|
|
|
||
|
|
if (cpupInitFlg == 0) {
|
||
|
|
return LOS_ERRNO_CPUP_NO_INIT;
|
||
|
|
}
|
||
|
|
|
||
|
|
OsProcessCycleEnd();
|
||
|
|
|
||
|
|
OsCpupGetPos(mode, &pos, &prePos);
|
||
|
|
cpuCycleAll = cpuHistoryTime[pos] - cpuHistoryTime[prePos];
|
||
|
|
|
||
|
|
idlePID = OsGetIdleProcessID();
|
||
|
|
idleCycleAll = g_cpup[idlePID].historyTime[pos] - g_cpup[idlePID].historyTime[prePos];
|
||
|
|
|
||
|
|
if (cpuCycleAll) {
|
||
|
|
cpup = (LOS_CPUP_PRECISION - (UINT32)((LOS_CPUP_SINGLE_CORE_PRECISION * idleCycleAll) / cpuCycleAll));
|
||
|
|
}
|
||
|
|
|
||
|
|
OsProcessCycleStart();
|
||
|
|
return cpup;
|
||
|
|
}
|
||
|
|
|
||
|
|
LITE_OS_SEC_TEXT_MINOR UINT32 LOS_HistorySysCpuUsage(UINT16 mode)
|
||
|
|
{
|
||
|
|
UINT32 cpup;
|
||
|
|
UINT32 intSave;
|
||
|
|
|
||
|
|
/* get end time of current process */
|
||
|
|
SCHEDULER_LOCK(intSave);
|
||
|
|
cpup = OsHistorySysCpuUsageUnsafe(mode);
|
||
|
|
SCHEDULER_UNLOCK(intSave);
|
||
|
|
return cpup;
|
||
|
|
}
|
||
|
|
|
||
|
|
LITE_OS_SEC_TEXT UINT32 OsHistoryProcessCpuUsageUnsafe(UINT32 pid, UINT16 mode)
|
||
|
|
{
|
||
|
|
UINT64 cpuCycleAll;
|
||
|
|
UINT64 cpuCycleCurProcess;
|
||
|
|
UINT16 pos;
|
||
|
|
UINT16 prePos;
|
||
|
|
UINT32 cpup = 0;
|
||
|
|
UINT32 ret;
|
||
|
|
OsCpupCB *processCpup = &g_cpup[pid];
|
||
|
|
|
||
|
|
ret = OsCpuUsageParaCheck(pid);
|
||
|
|
if (ret != LOS_OK) {
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
OsProcessCycleEnd();
|
||
|
|
|
||
|
|
OsCpupGetPos(mode, &pos, &prePos);
|
||
|
|
cpuCycleAll = cpuHistoryTime[pos] - cpuHistoryTime[prePos];
|
||
|
|
cpuCycleCurProcess = processCpup->historyTime[pos] - processCpup->historyTime[prePos];
|
||
|
|
if (cpuCycleAll) {
|
||
|
|
cpup = (UINT32)((LOS_CPUP_SINGLE_CORE_PRECISION * cpuCycleCurProcess) / cpuCycleAll);
|
||
|
|
}
|
||
|
|
|
||
|
|
OsProcessCycleStart();
|
||
|
|
|
||
|
|
return cpup;
|
||
|
|
}
|
||
|
|
|
||
|
|
LITE_OS_SEC_TEXT_MINOR UINT32 LOS_HistoryProcessCpuUsage(UINT32 pid, UINT16 mode)
|
||
|
|
{
|
||
|
|
UINT32 cpup;
|
||
|
|
UINT32 intSave;
|
||
|
|
|
||
|
|
SCHEDULER_LOCK(intSave);
|
||
|
|
cpup = OsHistoryProcessCpuUsageUnsafe(pid, mode);
|
||
|
|
SCHEDULER_UNLOCK(intSave);
|
||
|
|
|
||
|
|
return cpup;
|
||
|
|
}
|
||
|
|
|
||
|
|
LITE_OS_SEC_TEXT UINT32 OsAllCpuUsageUnsafe(UINT16 maxNum, CPUP_INFO_S *cpupInfo, UINT16 mode, UINT16 flag)
|
||
|
|
{
|
||
|
|
UINT16 loop;
|
||
|
|
UINT16 index;
|
||
|
|
UINT16 pos;
|
||
|
|
UINT16 prePos;
|
||
|
|
UINT64 cpuCycleAll;
|
||
|
|
UINT64 cpuCycleCurProcess;
|
||
|
|
UINT16 numTmpMax = maxNum;
|
||
|
|
UINT16 numTmpMin = 0;
|
||
|
|
UINT16 numMax = g_processMaxNum;
|
||
|
|
|
||
|
|
if (cpupInitFlg == 0) {
|
||
|
|
return LOS_ERRNO_CPUP_NO_INIT;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (cpupInfo == NULL) {
|
||
|
|
return LOS_ERRNO_CPUP_PROCESS_PTR_NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (maxNum == 0) {
|
||
|
|
return LOS_ERRNO_CPUP_MAXNUM_INVALID;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef LOSCFG_CPUP_INCLUDE_IRQ
|
||
|
|
if (flag == 0) {
|
||
|
|
numTmpMax += g_processMaxNum;
|
||
|
|
numTmpMin += g_processMaxNum;
|
||
|
|
numMax = cpupMaxNum;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
if (numTmpMax > numMax) {
|
||
|
|
numTmpMax = numMax;
|
||
|
|
}
|
||
|
|
|
||
|
|
OsProcessCycleEnd();
|
||
|
|
|
||
|
|
OsCpupGetPos(mode, &pos, &prePos);
|
||
|
|
cpuCycleAll = cpuHistoryTime[pos] - cpuHistoryTime[prePos];
|
||
|
|
|
||
|
|
for (loop = numTmpMin; loop < numTmpMax; loop++) {
|
||
|
|
if (g_cpup[loop].status == OS_CPUP_UNUSED) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
index = loop - numTmpMin;
|
||
|
|
cpuCycleCurProcess = g_cpup[loop].historyTime[pos] - g_cpup[loop].historyTime[prePos];
|
||
|
|
cpupInfo[index].usStatus = g_cpup[loop].status;
|
||
|
|
|
||
|
|
if (cpuCycleAll) {
|
||
|
|
cpupInfo[index].uwUsage = (UINT32)((LOS_CPUP_SINGLE_CORE_PRECISION * cpuCycleCurProcess) / cpuCycleAll);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
OsProcessCycleStart();
|
||
|
|
return LOS_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
LITE_OS_SEC_TEXT_MINOR UINT32 LOS_AllCpuUsage(UINT16 maxNum, CPUP_INFO_S *cpupInfo, UINT16 mode, UINT16 flag)
|
||
|
|
{
|
||
|
|
UINT32 intSave;
|
||
|
|
UINT32 ret;
|
||
|
|
|
||
|
|
SCHEDULER_LOCK(intSave);
|
||
|
|
ret = OsAllCpuUsageUnsafe(maxNum, cpupInfo, mode, flag);
|
||
|
|
SCHEDULER_UNLOCK(intSave);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef LOSCFG_CPUP_INCLUDE_IRQ
|
||
|
|
LITE_OS_SEC_TEXT_MINOR VOID OsCpupIrqStart(VOID)
|
||
|
|
{
|
||
|
|
UINT32 high;
|
||
|
|
UINT32 low;
|
||
|
|
|
||
|
|
LOS_GetCpuCycle(&high, &low);
|
||
|
|
intTimeStart[ArchCurrCpuid()] = ((UINT64)high << HIGH_BITS) + low;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
LITE_OS_SEC_TEXT_MINOR VOID OsCpupIrqEnd(UINT32 intNum)
|
||
|
|
{
|
||
|
|
UINT32 high;
|
||
|
|
UINT32 low;
|
||
|
|
UINT64 intTimeEnd;
|
||
|
|
UINT32 cpuID = ArchCurrCpuid();
|
||
|
|
|
||
|
|
LOS_GetCpuCycle(&high, &low);
|
||
|
|
intTimeEnd = ((UINT64)high << HIGH_BITS) + low;
|
||
|
|
|
||
|
|
g_cpup[g_processMaxNum + intNum].id = intNum;
|
||
|
|
g_cpup[g_processMaxNum + intNum].status = OS_CPUP_USED;
|
||
|
|
timeInIrqPerProcessSwitch[cpuID] += (intTimeEnd - intTimeStart[cpuID]);
|
||
|
|
g_cpup[g_processMaxNum + intNum].allTime += (intTimeEnd - intTimeStart[cpuID]);
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* LOSCFG_KERNEL_CPUP */
|
||
|
|
#ifdef __cplusplus
|
||
|
|
#if __cplusplus
|
||
|
|
}
|
||
|
|
#endif /* __cplusplus */
|
||
|
|
#endif /* __cplusplus */
|