mirror of
https://github.com/vortexgpgpu/vortex.git
synced 2025-04-23 13:27:29 -04:00
88 lines
2.2 KiB
C++
88 lines
2.2 KiB
C++
// Copyright © 2019-2023
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "driver.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <linux/limits.h>
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#include <dlfcn.h>
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#include <string>
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#include <vector>
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#include <sstream>
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#define DEFAULT_OPAE_DRV_PATHS "libopae-c.so"
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#define SET_API(func) \
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opae_drv_funcs->func = (pfn_##func)dlsym(dl_handle, #func); \
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if (opae_drv_funcs->func == nullptr) { \
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printf("dlsym failed: %s\n", dlerror()); \
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dlclose(dl_handle); \
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return -1; \
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}
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void* dl_handle = nullptr;
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int drv_init(opae_drv_api_t* opae_drv_funcs) {
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if (opae_drv_funcs == nullptr)
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return -1;
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const char* api_path_s = getenv("OPAE_DRV_PATHS");
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if (api_path_s == nullptr || api_path_s[0] == '\0') {
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api_path_s = DEFAULT_OPAE_DRV_PATHS;
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}
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std::vector<std::string> api_paths;
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{
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std::stringstream ss(api_path_s);
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while (ss.good()) {
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std::string path;
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getline(ss, path, ',');
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api_paths.push_back(path);
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}
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}
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for (auto& api_path : api_paths) {
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dl_handle = dlopen(api_path.c_str(), RTLD_LAZY | RTLD_LOCAL);
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if (dl_handle)
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break;
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}
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if (dl_handle == nullptr) {
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printf("dlopen failed: %s\n", dlerror());
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return -1;
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}
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SET_API (fpgaGetProperties);
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SET_API (fpgaPropertiesSetObjectType);
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SET_API (fpgaPropertiesSetGUID);
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SET_API (fpgaDestroyProperties);
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SET_API (fpgaDestroyToken);
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SET_API (fpgaPropertiesGetLocalMemorySize);
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SET_API (fpgaEnumerate);
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SET_API (fpgaOpen);
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SET_API (fpgaClose);
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SET_API (fpgaPrepareBuffer);
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SET_API (fpgaReleaseBuffer);
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SET_API (fpgaGetIOAddress);
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SET_API (fpgaWriteMMIO64);
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SET_API (fpgaReadMMIO64);
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SET_API (fpgaErrStr);
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return 0;
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}
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void drv_close() {
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dlclose(dl_handle);
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}
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