/* All modification made by Cambricon Corporation: © 2018--2019 Cambricon Corporation All rights reserved. All other contributions: Copyright (c) 2014--2018, the respective contributors All rights reserved. For the list of contributors go to https://github.com/BVLC/caffe/blob/master/CONTRIBUTORS.md Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * 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. * Neither the name of Intel Corporation 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 OWNER 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 #include #include "cnstream_logging.hpp" #include "cnstream_common.hpp" #include "cnstream_syncmem.hpp" namespace cnstream { /** * Allocates data on a host. * * @param ptr Outputs data pointer. * @param size The size of the data to be allocated. */ static void CNStreamMallocHost(void** ptr, size_t size) { void* __ptr = malloc(size); LOGF_IF(FRAME, nullptr == __ptr) << "Malloc memory on CPU failed, malloc size:" << size; *ptr = __ptr; } /** * Frees the data allocated by ``CNStreamMallocHost``. * * @param ptr The data address to be freed. */ static void CNStreamFreeHost(void* ptr) { free(ptr); } CNSyncedMemory::CNSyncedMemory(size_t size) : size_(size) {} CNSyncedMemory::CNSyncedMemory(size_t size, int mlu_dev_id, int mlu_ddr_chn) : size_(size), dev_id_(mlu_dev_id), ddr_chn_(mlu_ddr_chn) {} CNSyncedMemory::~CNSyncedMemory() { std::lock_guard lock(mutex_); if (0 == size_) return; if (cpu_ptr_ && own_cpu_data_) { free(cpu_ptr_); } if (mlu_ptr_ && own_mlu_data_) { // set device id before call cnrt functions, or CNRT_RET_ERR_EXISTS will be returned from cnrt function CALL_CNRT_BY_CONTEXT(cnrtFree(mlu_ptr_), dev_id_, ddr_chn_); } } inline void CNSyncedMemory::ToCpu() { if (0 == size_) return; switch (head_) { case SyncedHead::UNINITIALIZED: CNStreamMallocHost(&cpu_ptr_, size_); memset(cpu_ptr_, 0, size_); head_ = SyncedHead::HEAD_AT_CPU; own_cpu_data_ = true; break; case SyncedHead::HEAD_AT_MLU: if (NULL == cpu_ptr_) { CNStreamMallocHost(&cpu_ptr_, size_); own_cpu_data_ = true; } CALL_CNRT_BY_CONTEXT(cnrtMemcpy(cpu_ptr_, mlu_ptr_, size_, CNRT_MEM_TRANS_DIR_DEV2HOST), dev_id_, ddr_chn_); head_ = SyncedHead::SYNCED; break; case SyncedHead::HEAD_AT_CPU: case SyncedHead::SYNCED: break; } } inline void CNSyncedMemory::ToMlu() { if (0 == size_) return; switch (head_) { case SyncedHead::UNINITIALIZED: CALL_CNRT_BY_CONTEXT(cnrtMalloc(&mlu_ptr_, size_), dev_id_, ddr_chn_); head_ = SyncedHead::HEAD_AT_MLU; own_mlu_data_ = true; break; case SyncedHead::HEAD_AT_CPU: if (NULL == mlu_ptr_) { CALL_CNRT_BY_CONTEXT(cnrtMalloc(&mlu_ptr_, size_), dev_id_, ddr_chn_); own_mlu_data_ = true; } CALL_CNRT_BY_CONTEXT(cnrtMemcpy(mlu_ptr_, cpu_ptr_, size_, CNRT_MEM_TRANS_DIR_HOST2DEV), dev_id_, ddr_chn_); head_ = SyncedHead::SYNCED; break; case SyncedHead::HEAD_AT_MLU: case SyncedHead::SYNCED: break; } } const void* CNSyncedMemory::GetCpuData() { std::lock_guard lock(mutex_); ToCpu(); return const_cast(cpu_ptr_); } void CNSyncedMemory::SetCpuData(void* data) { std::lock_guard lock(mutex_); if (0 == size_) return; LOGF_IF(FRAME, NULL == data) << "data is NULL."; if (own_cpu_data_) { CNStreamFreeHost(cpu_ptr_); } cpu_ptr_ = data; head_ = SyncedHead::HEAD_AT_CPU; own_cpu_data_ = false; } const void* CNSyncedMemory::GetMluData() { std::lock_guard lock(mutex_); ToMlu(); return const_cast(mlu_ptr_); } void CNSyncedMemory::SetMluData(void* data) { std::lock_guard lock(mutex_); if (0 == size_) return; LOGF_IF(FRAME, nullptr == data) << "data is NULL."; if (own_mlu_data_) { CALL_CNRT_BY_CONTEXT(cnrtFree(mlu_ptr_), dev_id_, ddr_chn_); } mlu_ptr_ = data; head_ = SyncedHead::HEAD_AT_MLU; own_mlu_data_ = false; } void CNSyncedMemory::SetMluDevContext(int dev_id, int ddr_chn) { std::lock_guard lock(mutex_); /* check device */ cnrtDev_t dev; LOGF_IF(FRAME, CNRT_RET_SUCCESS != cnrtGetDeviceHandle(&dev, dev_id)) << "Can not find device by id: " << dev_id; // LOGF_IF(FRAME, ddr_chn < 0 || ddr_chn >= 4) << "Invalid ddr channel [0,4) :" << ddr_chn; dev_id_ = dev_id; ddr_chn_ = ddr_chn; } int CNSyncedMemory::GetMluDevId() const { std::lock_guard lock(mutex_); return dev_id_; } int CNSyncedMemory::GetMluDdrChnId() const { std::lock_guard lock(mutex_); return ddr_chn_; } void* CNSyncedMemory::GetMutableCpuData() { std::lock_guard lock(mutex_); ToCpu(); head_ = SyncedHead::HEAD_AT_CPU; return cpu_ptr_; } void* CNSyncedMemory::GetMutableMluData() { std::lock_guard lock(mutex_); ToMlu(); head_ = SyncedHead::HEAD_AT_MLU; return mlu_ptr_; } } // namespace cnstream