1 /*
  2  * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
  3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  4  *
  5  * This code is free software; you can redistribute it and/or modify it
  6  * under the terms of the GNU General Public License version 2 only, as
  7  * published by the Free Software Foundation.  Oracle designates this
  8  * particular file as subject to the "Classpath" exception as provided
  9  * by Oracle in the LICENSE file that accompanied this code.
 10  *
 11  * This code is distributed in the hope that it will be useful, but WITHOUT
 12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 14  * version 2 for more details (a copy is included in the LICENSE file that
 15  * accompanied this code).
 16  *
 17  * You should have received a copy of the GNU General Public License version
 18  * 2 along with this work; if not, write to the Free Software Foundation,
 19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 20  *
 21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 22  * or visit www.oracle.com if you need additional information or have any
 23  * questions.
 24  */
 25 #pragma once
 26 #define HIP_TYPES
 27 #ifdef __APPLE__
 28 
 29 #define LongUnsignedNewline "%llu\n"
 30 #define Size_tNewline "%lu\n"
 31 #define LongHexNewline "(0x%llx)\n"
 32 #define alignedMalloc(size, alignment) memalign(alignment, size)
 33 #define SNPRINTF snprintf
 34 #else
 35 
 36 #include <malloc.h>
 37 
 38 #define LongHexNewline "(0x%lx)\n"
 39 #define LongUnsignedNewline "%lu\n"
 40 #define Size_tNewline "%lu\n"
 41 #if defined (_WIN32)
 42 #include "windows.h"
 43 #define alignedMalloc(size, alignment) _aligned_malloc(size, alignment)
 44 #define SNPRINTF _snprintf
 45 #else
 46 #define alignedMalloc(size, alignment) memalign(alignment, size)
 47 #define SNPRINTF  snprintf
 48 #endif
 49 #endif
 50 
 51 #include <iostream>
 52 #include <hip/hip_runtime.h>
 53 #include <builtin_types.h>
 54 
 55 #include "shared.h"
 56 
 57 #include <fstream>
 58 
 59 #include<vector>
 60 #include <thread>
 61 
 62 /*
 63 struct WHERE{
 64     const char* f;
 65     int l;
 66     cudaError_enum e;
 67     const char* t;
 68     void report() const{
 69         if (e == CUDA_SUCCESS){
 70            // std::cout << t << "  OK at " << f << " line " << l << std::endl;
 71         }else {
 72             const char *buf;
 73             cuGetErrorName(e, &buf);
 74             std::cerr << t << " CUDA error = " << e << " " << buf <<std::endl<< "      " << f << " line " << l << std::endl;
 75             exit(-1);
 76         }
 77     }
 78 };
 79 
 80 */
 81 class PtxSource: public Text  {
 82 public:
 83     PtxSource();
 84     PtxSource(size_t len);
 85     PtxSource(size_t len, char *text);
 86     PtxSource(char *text);
 87     ~PtxSource() = default;
 88    // static PtxSource *nvcc(const char *cudaSource, size_t len);
 89 };
 90 
 91 class HipSource: public Text  {
 92 public:
 93     HipSource();
 94     HipSource(size_t len);
 95     HipSource(size_t len, char *text);
 96     HipSource(char *text);
 97     ~HipSource() = default;
 98 
 99 };
100 
101 class HipBackend : public Backend {
102 public:
103 class HipQueue: public Backend::Queue {
104     public:
105          std::thread::id streamCreationThread;
106         CUstream cuStream;
107         HipQueue(Backend *backend);
108         void init();
109          void wait() override;
110 
111          void release() override;
112 
113          void computeStart() override;
114 
115          void computeEnd() override;
116 
117          void copyToDevice(Buffer *buffer) override;
118 
119          void copyFromDevice(Buffer *buffer) override;
120 
121         virtual void dispatch(KernelContext *kernelContext, CompilationUnit::Kernel *kernel) override;
122 
123         virtual ~HipQueue();
124 
125 };
126 
127   class HipBuffer : public Backend::Buffer {
128     public:
129         CUdeviceptr devicePtr;
130         HipBuffer(Backend *backend, BufferState *bufferState);
131         virtual ~CudaBuffer();
132     };
133 
134     class HipProgram : public Backend::CompilationUnit {
135         class HipKernel : public Backend::CompilationUnit::Kernel {
136 
137 
138         private:
139             hipFunction_t kernel;
140             hipStream_t hipStream;
141         public:
142             HIPKernel(Backend::CompilationUnit *program, char* name, hipFunction_t kernel);
143 
144             ~HIPKernel() override;
145 
146             long ndrange( void *argArray);
147         };
148 
149     private:
150         HipModule_t module;
151         HipSource hipSource;
152         PtxSource ptxSource;
153         Log log;
154 
155     public:
156         HIPProgram(Backend *backend, BuildInfo *buildInfo, hipModule_t module);
157         ~HIPProgram();
158 
159         long getHipKernel(char *name);
160         long getHipKernel(int nameLen, char *name);
161 
162         bool programOK();
163     };
164 
165 private:
166     hipDevice_t device;
167     hipCtx_t context;
168 public:
169     void info();
170 
171      HIPBackend(in mode);
172     HIPBackend();
173     ~HIPBackend();
174 
175     int getMaxComputeUnits();
176 
177 };
178