| 1 | //===- AMDGPUArch.cpp - list AMDGPU installed ----------*- C++ -*---------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | // |
| 9 | // This file implements a tool for detecting name of AMDGPU installed in system |
| 10 | // using HIP runtime. This tool is used by AMDGPU OpenMP and HIP driver. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include "llvm/Support/DynamicLibrary.h" |
| 15 | #include "llvm/Support/Error.h" |
| 16 | #include "llvm/Support/raw_ostream.h" |
| 17 | |
| 18 | using namespace llvm; |
| 19 | |
| 20 | typedef struct { |
| 21 | char padding[396]; |
| 22 | char gcnArchName[256]; |
| 23 | char padding2[1024]; |
| 24 | } hipDeviceProp_t; |
| 25 | |
| 26 | typedef enum { |
| 27 | hipSuccess = 0, |
| 28 | } hipError_t; |
| 29 | |
| 30 | typedef hipError_t (*hipGetDeviceCount_t)(int *); |
| 31 | typedef hipError_t (*hipDeviceGet_t)(int *, int); |
| 32 | typedef hipError_t (*hipGetDeviceProperties_t)(hipDeviceProp_t *, int); |
| 33 | |
| 34 | int printGPUsByHIP() { |
| 35 | #ifdef _WIN32 |
| 36 | constexpr const char *DynamicHIPPath = "amdhip64.dll"; |
| 37 | #else |
| 38 | constexpr const char *DynamicHIPPath = "libamdhip64.so"; |
| 39 | #endif |
| 40 | |
| 41 | std::string ErrMsg; |
| 42 | auto DynlibHandle = std::make_unique<llvm::sys::DynamicLibrary>( |
| 43 | args: llvm::sys::DynamicLibrary::getPermanentLibrary(filename: DynamicHIPPath, errMsg: &ErrMsg)); |
| 44 | if (!DynlibHandle->isValid()) { |
| 45 | llvm::errs() << "Failed to load "<< DynamicHIPPath << ": "<< ErrMsg |
| 46 | << '\n'; |
| 47 | return 1; |
| 48 | } |
| 49 | |
| 50 | #define DYNAMIC_INIT_HIP(SYMBOL) \ |
| 51 | { \ |
| 52 | void *SymbolPtr = DynlibHandle->getAddressOfSymbol(#SYMBOL); \ |
| 53 | if (!SymbolPtr) { \ |
| 54 | llvm::errs() << "Failed to find symbol " << #SYMBOL << '\n'; \ |
| 55 | return 1; \ |
| 56 | } \ |
| 57 | SYMBOL = reinterpret_cast<decltype(SYMBOL)>(SymbolPtr); \ |
| 58 | } |
| 59 | |
| 60 | hipGetDeviceCount_t hipGetDeviceCount; |
| 61 | hipDeviceGet_t hipDeviceGet; |
| 62 | hipGetDeviceProperties_t hipGetDeviceProperties; |
| 63 | |
| 64 | DYNAMIC_INIT_HIP(hipGetDeviceCount); |
| 65 | DYNAMIC_INIT_HIP(hipDeviceGet); |
| 66 | DYNAMIC_INIT_HIP(hipGetDeviceProperties); |
| 67 | |
| 68 | #undef DYNAMIC_INIT_HIP |
| 69 | |
| 70 | int deviceCount; |
| 71 | hipError_t err = hipGetDeviceCount(&deviceCount); |
| 72 | if (err != hipSuccess) { |
| 73 | llvm::errs() << "Failed to get device count\n"; |
| 74 | return 1; |
| 75 | } |
| 76 | |
| 77 | for (int i = 0; i < deviceCount; ++i) { |
| 78 | int deviceId; |
| 79 | err = hipDeviceGet(&deviceId, i); |
| 80 | if (err != hipSuccess) { |
| 81 | llvm::errs() << "Failed to get device id for ordinal "<< i << '\n'; |
| 82 | return 1; |
| 83 | } |
| 84 | |
| 85 | hipDeviceProp_t prop; |
| 86 | err = hipGetDeviceProperties(&prop, deviceId); |
| 87 | if (err != hipSuccess) { |
| 88 | llvm::errs() << "Failed to get device properties for device "<< deviceId |
| 89 | << '\n'; |
| 90 | return 1; |
| 91 | } |
| 92 | llvm::outs() << prop.gcnArchName << '\n'; |
| 93 | } |
| 94 | |
| 95 | return 0; |
| 96 | } |
| 97 |