/* ---------------------------------------------------------------------------- * Copyright (c) Huawei Technologies Co., Ltd. 2020-2020. All rights reserved. * Description: LiteOS Perf Pmu Manager Module Implementation * Author: Huawei LiteOS Team * Create: 2020-07-29 * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright notice, this list of * conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, this list * of conditions and the following disclaimer in the documentation and/or other materials * provided with the distribution. * 3. Neither the name of the copyright holder nor the names of its contributors may be used * to endorse or promote products derived from this software without specific prior written * permission. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * --------------------------------------------------------------------------- */ #include "perf_pmu_pri.h" #ifdef __cplusplus #if __cplusplus extern "C" { #endif /* __cplusplus */ #endif /* __cplusplus */ STATIC Pmu *g_pmuMgr[PERF_EVENT_TYPE_MAX] = {NULL}; UINT32 OsPerfPmuRegister(Pmu *pmu) { UINT32 type; if ((pmu == NULL) || (pmu->type >= PERF_EVENT_TYPE_MAX)) { return LOS_NOK; } type = pmu->type; if (g_pmuMgr[type] == NULL) { g_pmuMgr[type] = pmu; return LOS_OK; } return LOS_NOK; } Pmu *OsPerfPmuGet(UINT32 type) { if (type >= PERF_EVENT_TYPE_MAX) { return NULL; } if (type == PERF_EVENT_TYPE_RAW) { /* process hardware raw events with hard pmu */ type = PERF_EVENT_TYPE_HW; } return g_pmuMgr[type]; } VOID OsPerfPmuRm(UINT32 type) { if (type >= PERF_EVENT_TYPE_MAX) { return; } g_pmuMgr[type] = NULL; } #ifdef __cplusplus #if __cplusplus } #endif /* __cplusplus */ #endif /* __cplusplus */