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 "ccu_wqebb_mgr_v1.h"
      12              : 
      13              : #include <vector>
      14              : 
      15              : #include "ccu_res_specs.h"
      16              : 
      17              : namespace hcomm {
      18              : 
      19              : // 计算 num 的以 2 为底的对数后移位，相当于向上最接近的 2 的整数次幂
      20          183 : static uint32_t RoundUpToNextPowerOfTwo(uint32_t num)
      21              : {
      22          183 :     if (num == 0) {
      23            0 :         return 1;
      24              :     }
      25              : 
      26          183 :     num--;
      27          183 :     num |= num >> 1;
      28          183 :     num |= num >> Hccl::SHIFT_2BITS;
      29          183 :     num |= num >> Hccl::SHIFT_4BITS;
      30          183 :     num |= num >> Hccl::SHIFT_8BITS;
      31          183 :     num |= num >> Hccl::SHIFT_16BITS;
      32          183 :     return num + 1;
      33              : }
      34              : 
      35          183 : static uint32_t GetWqeBBReqSizeBySqSize(uint32_t sqSize)
      36              : {
      37          183 :     if (sqSize < CCU_MIN_SQ_DEPTH) {
      38            0 :         HCCL_WARNING(
      39              :             "[CcuJettyCtxMgr][%s] sqSize[%u] is too small, reset to [%u].", __func__, sqSize, CCU_MIN_SQ_DEPTH);
      40            0 :         return CCU_MIN_SQ_DEPTH;
      41              :     }
      42              : 
      43              :     // WQE basic block 的 size 必须是 2 的整数次幂，向上取整
      44          183 :     uint32_t wqeBBReqNum = RoundUpToNextPowerOfTwo(sqSize);
      45          183 :     if (wqeBBReqNum != sqSize) {
      46            0 :         HCCL_WARNING(
      47              :             "[CcuJettyCtxMgr][%s] sqSize[%u] is not power of 2, reset to [%u].", __func__, sqSize, wqeBBReqNum);
      48              :     }
      49              : 
      50          183 :     if (sqSize > CCU_MAX_SQ_DEPTH) {
      51            0 :         HCCL_WARNING(
      52              :             "[CcuJettyCtxMgr][%s] sqSize[%u] is too large, reset to [%u].", __func__, sqSize, CCU_MAX_SQ_DEPTH);
      53            0 :         return CCU_MAX_SQ_DEPTH;
      54              :     }
      55              : 
      56          183 :     return wqeBBReqNum;
      57              : }
      58              : 
      59          170 : HcclResult CcuWqeBBMgrV1::Init()
      60              : {
      61          170 :     uint32_t wqeBBNum = 0; // 获取失败或为0场景，分配将按资源不足操作
      62          170 :     (void)CcuResSpecifications::GetInstance(devLogicId_).GetWqeBBNum(dieId_, wqeBBNum);
      63          170 :     idAllocator_.reset(new (std::nothrow) CcuResIdAllocator(wqeBBNum));
      64          170 :     CHK_PTR_NULL(idAllocator_);
      65          170 :     return HcclResult::HCCL_SUCCESS;
      66              : }
      67              : 
      68          183 : HcclResult CcuWqeBBMgrV1::Alloc(const WqeBBReq& wqeBBReq, ResInfo& wqeBBInfo)
      69              : {
      70          183 :     uint32_t wqeBBReqSize = GetWqeBBReqSizeBySqSize(wqeBBReq.sqSize);
      71          183 :     std::vector<ResInfo> resInfo;
      72          366 :     auto ret = idAllocator_->Alloc(wqeBBReqSize, true, resInfo, "ResType::WqeBB"); // wqebb资源要求连续
      73          183 :     if (ret == HcclResult::HCCL_E_UNAVAIL) {
      74            0 :         HCCL_WARNING(
      75              :             "[CcuWqeBBMgrV1][%s] failed, left resources are not enough, "
      76              :             "wqeBBReq.sqSize[%u], wqeBBSize[%u]",
      77              :             __func__, wqeBBReq.sqSize, wqeBBReqSize);
      78            0 :         return ret;
      79              :     }
      80          183 :     CHK_RET(ret);
      81              : 
      82          183 :     wqeBBInfo = resInfo[0]; // 分配连续资源包含1个元素
      83          183 :     return ret;
      84          183 : }
      85              : 
      86           13 : HcclResult CcuWqeBBMgrV1::Release(const ResInfo& wqeBBInfo)
      87              : {
      88           13 :     auto ret = idAllocator_->Release(wqeBBInfo.startId, wqeBBInfo.num);
      89           13 :     CHK_PRT_RET(
      90              :         ret != HcclResult::HCCL_SUCCESS,
      91              :         HCCL_ERROR(
      92              :             "[CcuWqeBBMgrV1][%s] failed, wqe basic block resource info[%s]", __func__, wqeBBInfo.Describe().c_str()),
      93              :         ret);
      94              : 
      95           13 :     return HcclResult::HCCL_SUCCESS;
      96              : }
      97              : }; // namespace hcomm