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HSAIL: initial support for object allocation in HSAIL kernels Contributed-by: Tom Deneau <tom.deneau@amd.com>
author Doug Simon <doug.simon@oracle.com>
date Fri, 11 Apr 2014 17:12:08 +0200
parents 3e9a960f0da1
children 66e3af78ea96
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1 /*
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #ifndef GPU_HSAIL_HPP
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26 #define GPU_HSAIL_HPP
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27
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28 #include "utilities/exceptions.hpp"
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29 #include "graal/graalEnv.hpp"
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30 // #include "graal/graalCodeInstaller.hpp"
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31 #include "gpu_hsail_Frame.hpp"
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32
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33 class Hsail {
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34 friend class gpu;
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35
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36 public:
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37 class HSAILKernelDeoptimization {
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38 friend class VMStructs;
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39 private:
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40 // TODO: separate workitemid and actionAndReason out
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41 // since they are there only once even if there are multiple frames
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42 // for now, though we only ever have one hsail fram
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43 jint _workitemid;
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44 jint _actionAndReason;
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45 // the first (innermost) "hsail frame" starts here
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46 HSAILFrame _first_frame;
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47
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48 public:
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49 inline jint workitem() { return _workitemid; }
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50 inline jint reason() { return _actionAndReason; }
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51 inline jint pc_offset() { return _first_frame.pc_offset(); }
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52 inline HSAILFrame *first_frame() { return &_first_frame; }
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53 };
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54
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55 // 8 compute units * 40 waves per cu * wavesize 64
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56 #define MAX_DEOPT_SAVE_STATES_SIZE (8 * 40 * 64)
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57
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58 class HSAILDeoptimizationInfo : public ResourceObj {
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59 friend class VMStructs;
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60 private:
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61 jint _deopt_occurred;
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62 jint _deopt_next_index;
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63 JavaThread** _donor_threads;
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64 jboolean * _never_ran_array;
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65
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66 public:
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67 HSAILKernelDeoptimization _deopt_save_states[MAX_DEOPT_SAVE_STATES_SIZE];
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68
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69 inline HSAILDeoptimizationInfo() {
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70 _deopt_occurred = 0;
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71 _deopt_next_index = 0;
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72 }
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73
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74 inline jint deopt_occurred() {
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75 // Check that hsail did not write in the wrong place
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76 return _deopt_occurred;
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77 }
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78 inline jint num_deopts() { return _deopt_next_index; }
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79 inline jboolean *never_ran_array() { return _never_ran_array; }
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80 inline void set_never_ran_array(jboolean *p) { _never_ran_array = p; }
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81 inline void set_donor_threads(JavaThread **threads) { _donor_threads = threads; }
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82 };
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83
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84
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85 private:
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86
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87 static JNINativeMethod HSAIL_methods[];
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88
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89 // static native boolean initialize();
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90 JNIEXPORT static jboolean initialize(JNIEnv *env, jclass);
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91
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92 // static native long generateKernel(byte[] targetCode, String name);
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93 JNIEXPORT static jlong generate_kernel(JNIEnv *env, jclass, jbyteArray code_handle, jstring name_handle);
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94
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95 // static native boolean executeKernel0(HotSpotInstalledCode kernel, int jobSize, Object[] args);
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96 JNIEXPORT static jboolean execute_kernel_void_1d(JNIEnv *env, jclass, jobject hotspotInstalledCode, jint dimX, jobject args, jobject oopsSave,
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97 jobject donorThreads, int allocBytesPerWorkitem);
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98
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99 // static native void getThreadPointers(Object[] donorThreads, long[] threadPointersOut);
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100 JNIEXPORT static void get_thread_pointers(JNIEnv *env, jclass, jobject donor_threads_handle, jobject thread_ptrs_handle);
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101
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102 static void getNewTlabForDonorThread(ThreadLocalAllocBuffer* tlab, size_t tlabMinHsail);
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103
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104 static jboolean execute_kernel_void_1d_internal(address kernel, int dimX, jobject args, methodHandle& mh, nmethod *nm, jobject oopsSave,
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105 jobject donorThreads, int allocBytesPerWorkitem, TRAPS);
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106
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107 static void register_heap();
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108
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109 static GraalEnv::CodeInstallResult install_code(Handle& compiled_code, CodeBlob*& cb, Handle installed_code, Handle triggered_deoptimizations);
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110
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111 public:
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112
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113 // Registers the implementations for the native methods in HSAILHotSpotBackend
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114 static bool register_natives(JNIEnv* env);
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115
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116 #if defined(__x86_64) || defined(AMD64) || defined(_M_AMD64)
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117 typedef unsigned long long CUdeviceptr;
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118 #else
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119 typedef unsigned int CUdeviceptr;
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120 #endif
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121
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122 private:
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123 typedef void* (*okra_create_context_func_t)();
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124 typedef void* (*okra_create_kernel_func_t)(void*, unsigned char *, const char *);
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125 typedef bool (*okra_push_object_func_t)(void*, void*);
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126 typedef bool (*okra_push_boolean_func_t)(void*, jboolean);
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127 typedef bool (*okra_push_byte_func_t)(void*, jbyte);
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128 typedef bool (*okra_push_double_func_t)(void*, jdouble);
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129 typedef bool (*okra_push_float_func_t)(void*, jfloat);
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130 typedef bool (*okra_push_int_func_t)(void*, jint);
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131 typedef bool (*okra_push_long_func_t)(void*, jlong);
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132 typedef bool (*okra_execute_with_range_func_t)(void*, jint);
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133 typedef bool (*okra_clearargs_func_t)(void*);
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134 typedef bool (*okra_register_heap_func_t)(void*, size_t);
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135
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136 public:
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137 static okra_create_context_func_t _okra_create_context;
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138 static okra_create_kernel_func_t _okra_create_kernel;
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139 static okra_push_object_func_t _okra_push_object;
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140 static okra_push_boolean_func_t _okra_push_boolean;
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141 static okra_push_byte_func_t _okra_push_byte;
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142 static okra_push_double_func_t _okra_push_double;
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143 static okra_push_float_func_t _okra_push_float;
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144 static okra_push_int_func_t _okra_push_int;
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145 static okra_push_long_func_t _okra_push_long;
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146 static okra_execute_with_range_func_t _okra_execute_with_range;
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147 static okra_clearargs_func_t _okra_clearargs;
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148 static okra_register_heap_func_t _okra_register_heap;
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149
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150 protected:
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151 static void* _device_context;
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152 };
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153 #endif // GPU_HSAIL_HPP