Line data    Source code

       1              : /**
       2              :  * Copyright (c) 2025 Huawei Technologies Co., Ltd.
       3              :  * This program is free software, you can redistribute it and/or modify it under the terms and conditions of
       4              :  * CANN Open Software License Agreement Version 2.0 (the "License").
       5              :  * Please refer to the License for details. You may not use this file except in compliance with the License.
       6              :  * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
       7              :  * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
       8              :  * See LICENSE in the root of the software repository for the full text of the License.
       9              :  */
      10              : 
      11              : #include "trace_driver_api.h"
      12              : #include "ascend_hal.h"
      13              : #include "adiag_print.h"
      14              : #include "adiag_utils.h"
      15              : #include "trace_load_library.h"
      16              : 
      17              : #define DRIVER_FUNCTION_NUM 2U
      18              : #define DRIVER_LIBRARY_NAME "libascend_hal.so"
      19              : 
      20              : STATIC ArgPtr g_libHandle = NULL;
      21              : STATIC SymbolInfo g_drvFuncInfo[DRIVER_FUNCTION_NUM] = {
      22              :     {"drvGetPlatformInfo", NULL},
      23              :     {"drvGetDevNum", NULL},
      24              : };
      25              : 
      26         2082 : TraStatus TraceDriverInit(void)
      27              : {
      28         2082 :     g_libHandle = TraceOpenLibrary(DRIVER_LIBRARY_NAME);
      29         2082 :     if (g_libHandle == NULL) {
      30              :         // on the general server (pure cpu) scene the driver library is absent, this is expected
      31              :         // and should not report an error, otherwise it pollutes the disk log on a normal startup.
      32            0 :         ADIAG_WAR(
      33              :             "dlopen library %s failed, treat as pure cpu env, strerr=%s.", DRIVER_LIBRARY_NAME,
      34              :             strerror(AdiagGetErrorCode()));
      35            0 :         return TRACE_FAILURE;
      36              :     }
      37              : 
      38         2082 :     TraStatus ret = TraceLoadFunc(g_libHandle, g_drvFuncInfo, DRIVER_FUNCTION_NUM);
      39         2082 :     ADIAG_CHK_EXPR_ACTION(ret != TRACE_SUCCESS, return TRACE_FAILURE, "load function symbol failed, ret=%d.", ret);
      40              : 
      41         2082 :     return TRACE_SUCCESS;
      42              : }
      43              : 
      44         2072 : void TraceDriverExit(void)
      45              : {
      46         2072 :     if (g_libHandle == NULL) {
      47            0 :         return;
      48              :     }
      49         2072 :     if (TraceCloseLibrary(g_libHandle) != TRACE_SUCCESS) {
      50           22 :         ADIAG_WAR("can not dlclose library %s, strerr=%s.", DRIVER_LIBRARY_NAME, strerror(AdiagGetErrorCode()));
      51              :     }
      52              : }
      53              : 
      54              : typedef drvError_t (*DrvGetPlatformInfo)(uint32_t*);
      55         2082 : TraStatus TraceDrvGetPlatformInfo(uint32_t* info)
      56              : {
      57         2082 :     DrvGetPlatformInfo func = (DrvGetPlatformInfo)g_drvFuncInfo[0].handle;
      58         2082 :     ADIAG_CHK_EXPR_ACTION(func == NULL, return TRACE_FAILURE, "can not find function\"%s\".", g_drvFuncInfo[0].symbol);
      59              : 
      60         2082 :     drvError_t drvErr = func(info);
      61         2082 :     ADIAG_CHK_EXPR_ACTION(
      62              :         drvErr != DRV_ERROR_NONE, return TRACE_FAILURE, "get platform info failed, drvErr=%d.", (int32_t)drvErr);
      63              : 
      64         2082 :     return TRACE_SUCCESS;
      65              : }
      66              : 
      67              : typedef drvError_t (*DrvGetDevNum)(uint32_t*);
      68         2082 : TraStatus TraceDrvGetDevNum(uint32_t* num)
      69              : {
      70         2082 :     DrvGetDevNum func = (DrvGetDevNum)g_drvFuncInfo[1].handle;
      71         2082 :     ADIAG_CHK_EXPR_ACTION(func == NULL, return TRACE_FAILURE, "can not find function\"%s\".", g_drvFuncInfo[1].symbol);
      72              : 
      73         2082 :     drvError_t drvErr = func(num);
      74              : 
      75         2082 :     if (drvErr == DRV_ERROR_NOT_SUPPORT) {
      76           22 :         return TRACE_FAILURE;
      77              :     }
      78         2060 :     ADIAG_CHK_EXPR_ACTION(
      79              :         drvErr != DRV_ERROR_NONE, return TRACE_FAILURE, "get device num failed, drvErr=%d.", (int32_t)drvErr);
      80              : 
      81         2060 :     return TRACE_SUCCESS;
      82              : }