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annotate src/gpu/ptx/vm/ptxKernelArguments.hpp @ 12620:a9f750305a38

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added --igv option to "mx projectgraph" command for sending output to IGV instead
author Doug Simon <doug.simon@oracle.com>
date Mon, 28 Oct 2013 16:04:58 +0100
parents f020e149c1b6
children 1a7e7011a341
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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
49bb1bc983c6 Implement several missing PTX codegen features; return value capture and method args passing of java method executed on GPU.
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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 KERNEL_ARGUMENTS_PTX_HPP
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26 #define KERNEL_ARGUMENTS_PTX_HPP
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27
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28 #include "runtime/gpu.hpp"
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29 #include "runtime/signature.hpp"
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30
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31 #define T_BYTE_SIZE 1
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32 #define T_BOOLEAN_SIZE 4
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33 #define T_INT_BYTE_SIZE 4
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34 #define T_FLOAT_BYTE_SIZE 4
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35 #define T_DOUBLE_BYTE_SIZE 8
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36 #define T_LONG_BYTE_SIZE 8
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37 #define T_ARRAY_BYTE_SIZE 8
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38
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39 class PTXKernelArguments : public SignatureIterator {
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40 public:
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41 // Buffer holding CUdeviceptr values that represent the kernel arguments
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42 char _kernelArgBuffer[1024];
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43 // Current offset into _kernelArgBuffer
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44 size_t _bufferOffset;
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45 // Device pointer holding return value
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46 gpu::Ptx::CUdeviceptr _dev_return_value;
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47
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48 // Indicates if signature iteration is being done during kernel
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49 // setup i.e., java arguments are being copied to device pointers.
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50 bool _kernelArgSetup;
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51
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52 private:
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53 // Array of java argument oops
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54 arrayOop _args;
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55 // Current index into _args
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56 int _index;
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57 // Flag to indicate successful creation of kernel argument buffer
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58 bool _success;
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59
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60 // Get next java argument
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61 oop next_arg(BasicType expectedType);
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62
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63 public:
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64 PTXKernelArguments(Symbol* signature, arrayOop args, bool is_static) : SignatureIterator(signature) {
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65 this->_return_type = T_ILLEGAL;
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66 _index = 0;
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67 _args = args;
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68 _success = true;
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69 _bufferOffset = 0;
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70 _dev_return_value = 0;
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71 _kernelArgSetup = true;
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72 //_dev_call_by_reference_args_index = 0;
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73 if (!is_static) {
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74 // TODO : Create a device argument for receiver object and add it to _kernelBuffer
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75 tty->print_cr("{CUDA] ****** TODO: Support for execution of non-static java methods not implemented yet.");
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76 }
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77 // Iterate over the entire signature
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78 iterate();
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79 assert((_success && (_index == args->length())), "arg count mismatch with signature");
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80 }
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81
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82 inline char* device_argument_buffer() {
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83 return _kernelArgBuffer;
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84 }
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85
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86 inline size_t device_argument_buffer_size() {
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87 return _bufferOffset;
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88 }
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89
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90 void copyRefArgsFromDtoH() {
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91 _kernelArgSetup = false;
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92 _bufferOffset = 0;
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93 _index = 0;
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94 iterate();
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95 }
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96
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97 inline bool is_kernel_arg_setup() {
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98 return _kernelArgSetup;
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99 }
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100
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101 // Get the return oop value
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102 oop get_return_oop();
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103
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104 // get device return value ptr
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105 gpu::Ptx::CUdeviceptr get_dev_return_value() {
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106 return _dev_return_value;
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107 }
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108
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109
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110 void do_byte();
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111 void do_bool();
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112 void do_int();
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113 void do_float();
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114 void do_double();
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115 void do_long();
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116 void do_array(int begin, int end);
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117 void do_void();
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118
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119 inline void do_char() {
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120 /* TODO : To be implemented */
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121 guarantee(false, "do_char:NYI");
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122 }
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123 inline void do_short() {
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124 /* TODO : To be implemented */
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125 guarantee(false, "do_short:NYI");
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126 }
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127 inline void do_object() {
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128 /* TODO : To be implemented */
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129 guarantee(false, "do_object:NYI");
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130 }
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131
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132 inline void do_object(int begin, int end) {
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91e5f927af63 Initial implementation of PTXRuntime (RegisterConfig, PTX description etc); guarded with new flag UseGPU. Specify -XX:+UseGPU to exercise this new implementation.
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133 /* TODO : To be implemented */
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134 guarantee(false, "do_object(II):NYI");
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135 }
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136
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137 };
49bb1bc983c6 Implement several missing PTX codegen features; return value capture and method args passing of java method executed on GPU.
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138
49bb1bc983c6 Implement several missing PTX codegen features; return value capture and method args passing of java method executed on GPU.
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139 #endif // KERNEL_ARGUMENTS_HPP