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80 lines
2.7 KiB
80 lines
2.7 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 Module Implementation
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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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#include "perf_pmu_pri.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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STATIC Pmu *g_pmuMgr[PERF_EVENT_TYPE_MAX] = {NULL};
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UINT32 OsPerfPmuRegister(Pmu *pmu)
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{
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UINT32 type;
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if ((pmu == NULL) || (pmu->type >= PERF_EVENT_TYPE_MAX)) {
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return LOS_NOK;
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}
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type = pmu->type;
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if (g_pmuMgr[type] == NULL) {
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g_pmuMgr[type] = pmu;
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return LOS_OK;
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}
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return LOS_NOK;
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}
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Pmu *OsPerfPmuGet(UINT32 type)
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{
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if (type >= PERF_EVENT_TYPE_MAX) {
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return NULL;
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}
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if (type == PERF_EVENT_TYPE_RAW) { /* process hardware raw events with hard pmu */
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type = PERF_EVENT_TYPE_HW;
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}
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return g_pmuMgr[type];
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}
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VOID OsPerfPmuRm(UINT32 type)
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{
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if (type >= PERF_EVENT_TYPE_MAX) {
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return;
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}
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g_pmuMgr[type] = NULL;
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}
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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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