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109 lines
4.6 KiB
109 lines
4.6 KiB
/* ----------------------------------------------------------------------------
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* Copyright (c) Huawei Technologies Co., Ltd. 2020-2020. All rights reserved.
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* Description: LiteOS Perf Pmu Manager Implementation Private HeadFile
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* Author: Huawei LiteOS Team
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* Create: 2020-07-29
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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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* 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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* 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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* 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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* 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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#ifndef _PERF_PMU_PRI_H
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#define _PERF_PMU_PRI_H
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#include "los_perf_pri.h"
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#ifdef LOSCFG_COMPAT_LINUX
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#include "linux/hrtimer.h"
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#endif
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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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typedef struct {
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Pmu pmu;
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BOOL canDivided;
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UINT32 cntDivided;
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VOID (*enable)(Event *event);
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VOID (*disable)(Event *event);
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VOID (*start)(VOID);
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VOID (*stop)(VOID);
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VOID (*clear)(VOID);
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VOID (*setPeriod)(Event *event);
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UINTPTR (*readCnt)(Event *event);
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UINT32 (*mapEvent)(UINT32 eventType, BOOL reverse);
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} HwPmu;//硬件性能计数器结构体，包括硬件计数器、计数器是否能被分频、分频系数、启用、禁用、开始、停止、清除、设置周期、读取计数器值和事件映射等函数指针
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typedef struct {
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Pmu pmu;
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union {
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struct { /* trace event */
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BOOL enable;
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};
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#ifdef LOSCFG_COMPAT_LINUX
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struct { /* timer event */
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struct hrtimer hrtimer;
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union ktime time;
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union ktime cfgTime;
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};
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#endif
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};
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} SwPmu;//软件性能计数器结构体，包括软件计数器、是否启用标志位、定时器配置时间
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#define GET_HW_PMU(item) LOS_DL_LIST_ENTRY(item, HwPmu, pmu)
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#define TIMER_PERIOD_LOWER_BOUND_US 100//定时器最小周期
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#define CCNT_FULL 0xFFFFFFFF//计数器最大值
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#define CCNT_PERIOD_LOWER_BOUND 0x00000000//最小周期
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#define CCNT_PERIOD_UPPER_BOUND 0xFFFFFF00//最大周期
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#define PERIOD_CALC(p) (CCNT_FULL - (p))//计算给定周期对应的计数器值
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#define VALID_PERIOD(p) ((PERIOD_CALC(p) > CCNT_PERIOD_LOWER_BOUND) \
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&& (PERIOD_CALC(p) < CCNT_PERIOD_UPPER_BOUND))//判断给定周期是否合法
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#define PERF_HW_INVAILD_EVENT_TYPE 0xFFFFFFFF//无效的事件类型
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#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0]))
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extern UINT32 OsPerfPmuRegister(Pmu *pmu);//注册硬件性能计数器
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extern VOID OsPerfPmuRm(UINT32 type);//删除硬件性能计数器
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extern Pmu *OsPerfPmuGet(UINT32 type);//获取指定类型的硬件性能计数器
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extern UINT32 OsHwPmuInit(VOID);//初始化硬件性能计数器
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extern UINT32 OsSwPmuInit(VOID);//初始化软件性能计数器
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extern UINT32 OsTimedPmuInit(VOID);//初始化定时器性能计数器
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extern UINT32 OsGetPmuCounter0(VOID);//获取0核计数器值
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extern UINT32 OsGetPmuMaxCounter(VOID);//获取最大计数器数
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extern UINT32 OsGetPmuCycleCounter(VOID);//获取周期性计数器值
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extern UINT32 OsPerfHwInit(HwPmu *hwPmu);//初始化硬件性能计数器
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#ifdef __cplusplus
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#if __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#endif /* _PERF_PMU_PRI_H */
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