70 строки
2.1 KiB
C++
70 строки
2.1 KiB
C++
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/*
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* Copyright (C) 2016-2018 Advanced Micro Devices, Inc. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include <gtest/gtest.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <string>
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#include "amdp2ptest.h"
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#include "RDMAUtil.hpp"
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void LocalMemoryAccess::Open() {
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fd = open(AMDP2PTEST_DEVICE_PATH, O_RDWR);
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}
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void LocalMemoryAccess::Close() {
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close(fd);
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fd = -1;
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}
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int LocalMemoryAccess::GetPages(uint64_t gpu_va_addr, uint64_t size) {
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struct AMDRDMA_IOCTL_GET_PAGES_PARAM param = {0};
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if (fd <= 0)
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return -1;
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param.addr = gpu_va_addr;
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param.length = size;
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return ioctl(fd, AMD2P2PTEST_IOCTL_GET_PAGES, ¶m);
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}
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void *LocalMemoryAccess::MMap(uint64_t offset, size_t size) {
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void *gpuAddr;
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if (fd <= 0)
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return NULL;
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gpuAddr = mmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, offset);
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return gpuAddr;
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}
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void LocalMemoryAccess::UnMap(void *offset, size_t size) {
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munmap(offset, size);
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}
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