1 | /* |
2 | * Licensed to the Apache Software Foundation (ASF) under one |
3 | * or more contributor license agreements. See the NOTICE file |
4 | * distributed with this work for additional information |
5 | * regarding copyright ownership. The ASF licenses this file |
6 | * to you under the Apache License, Version 2.0 (the |
7 | * "License"); you may not use this file except in compliance |
8 | * with the License. You may obtain a copy of the License at |
9 | * |
10 | * http://www.apache.org/licenses/LICENSE-2.0 |
11 | * |
12 | * Unless required by applicable law or agreed to in writing, |
13 | * software distributed under the License is distributed on an |
14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
15 | * KIND, either express or implied. See the License for the |
16 | * specific language governing permissions and limitations |
17 | * under the License. |
18 | */ |
19 | |
20 | /*! |
21 | * \file codegen_aocl.cc |
22 | */ |
23 | #include <tvm/target/target.h> |
24 | |
25 | #include <string> |
26 | #include <vector> |
27 | |
28 | #include "../../runtime/file_utils.h" |
29 | #include "../../runtime/opencl/aocl/aocl_module.h" |
30 | #include "../build_common.h" |
31 | #include "codegen_opencl.h" |
32 | |
33 | namespace tvm { |
34 | namespace codegen { |
35 | |
36 | runtime::Module BuildAOCL(IRModule mod, Target target, bool emulation) { |
37 | // Get code. |
38 | using tvm::runtime::Registry; |
39 | bool output_ssa = false; |
40 | CodeGenOpenCL cg; |
41 | cg.Init(output_ssa); |
42 | |
43 | for (auto kv : mod->functions) { |
44 | ICHECK(kv.second->IsInstance<PrimFuncNode>()) << "CodegenOpenCL: Can only take PrimFunc" ; |
45 | auto f = Downcast<PrimFunc>(kv.second); |
46 | auto calling_conv = f->GetAttr<Integer>(tvm::attr::kCallingConv); |
47 | ICHECK(calling_conv == CallingConv::kDeviceKernelLaunch) |
48 | << "CodegenOpenCL: expect calling_conv equals CallingConv::kDeviceKernelLaunch" ; |
49 | cg.AddFunction(f); |
50 | } |
51 | |
52 | std::string code = cg.Finish(); |
53 | if (const auto* f = Registry::Get("tvm_callback_opencl_postproc" )) { |
54 | code = (*f)(code).operator std::string(); |
55 | } |
56 | |
57 | // Write a .cl file. |
58 | runtime::SaveBinaryToFile("aocl.cl" , code.c_str()); |
59 | |
60 | // Compile the .cl file. |
61 | std::string cmd = "aoc aocl.cl" ; |
62 | // AOCL supports fp64. |
63 | cmd += " -Dcl_khr_fp64" ; |
64 | Optional<String> device = target->GetAttr<String>("device" ); |
65 | if (device.defined()) { |
66 | cmd += " -board=" + device.value(); |
67 | } |
68 | if (emulation) { |
69 | cmd += " -march=emulator" ; |
70 | } |
71 | if (system(cmd.c_str()) != 0) { |
72 | LOG(FATAL) << "OpenCL offline compilation error." ; |
73 | } |
74 | |
75 | // Read .aocx file |
76 | std::string aocxbin; |
77 | runtime::LoadBinaryFromFile("aocl.aocx" , &aocxbin); |
78 | |
79 | return AOCLModuleCreate(aocxbin, "aocx" , ExtractFuncInfo(mod), code); |
80 | } |
81 | |
82 | TVM_REGISTER_GLOBAL("target.build.aocl" ) |
83 | .set_body_typed([](IRModule mod, Target target) -> runtime::Module { |
84 | return BuildAOCL(mod, target, false); |
85 | }); |
86 | |
87 | TVM_REGISTER_GLOBAL("target.build.aocl_sw_emu" ) |
88 | .set_body_typed([](IRModule mod, Target target) -> runtime::Module { |
89 | return BuildAOCL(mod, target, true); |
90 | }); |
91 | |
92 | } // namespace codegen |
93 | } // namespace tvm |
94 | |