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annotate src/gpu/ptx/vm/ptxKernelArguments.hpp @ 11596:91e5f927af63

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Initial implementation of PTXRuntime (RegisterConfig, PTX description etc); guarded with new flag UseGPU. Specify -XX:+UseGPU to exercise this new implementation.
author bharadwaj
date Tue, 10 Sep 2013 22:39:50 -0400
parents src/gpu/ptx/vm/kernelArguments.hpp@c99e65785936
children d8659ad83fcc
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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 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_INT_BYTE_SIZE 4
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33 #define T_LONG_BYTE_SIZE 8
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34
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35 class PTXKernelArguments : public SignatureIterator {
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36 public:
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37 // Buffer holding CUdeviceptr values that represent the kernel arguments
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38 char _kernelArgBuffer[1024];
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39 // Current offset into _kernelArgBuffer
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40 size_t _bufferOffset;
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41 gpu::Ptx::CUdeviceptr _return_value_ptr;
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42 private:
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43 // Array of java argument oops
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44 arrayOop _args;
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45 // Current index into _args
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46 int _index;
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47 // Flag to indicate successful creation of kernel argument buffer
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48 bool _success;
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49 // Get next java argument
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50 oop next_arg(BasicType expectedType);
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51
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52 public:
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53 PTXKernelArguments(Symbol* signature, arrayOop args, bool is_static) : SignatureIterator(signature) {
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54 this->_return_type = T_ILLEGAL;
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55 _index = 0;
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56 _args = args;
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57 _success = true;
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58 _bufferOffset = 0;
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59 _return_value_ptr = 0;
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60 if (!is_static) {
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61 // TODO : Create a device argument for receiver object and add it to _kernelBuffer
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62 tty->print_cr("{CUDA] ****** TODO: Support for execution of non-static java methods not implemented yet.");
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63 }
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64 // Iterate over the entire signature
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65 iterate();
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66 assert((_success && (_index == args->length())), "arg count mismatch with signature");
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67 }
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68
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69 inline char* device_argument_buffer() {
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70 return _kernelArgBuffer;
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71 }
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72
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73 inline size_t device_argument_buffer_size() {
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74 return _bufferOffset;
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75 }
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76
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77 // Get the return oop value
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78 oop get_return_oop();
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79
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80 // get device return value ptr
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81 gpu::Ptx::CUdeviceptr get_return_value_ptr() {
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82 return _return_value_ptr;
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83 }
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84
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85
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86 void do_byte();
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87 void do_int();
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88 void do_long();
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89
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90 inline void do_bool() {
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91 /* TODO : To be implemented */
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92 guarantee(false, "NYI");
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93 }
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94 inline void do_char() {
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95 /* TODO : To be implemented */
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96 guarantee(false, "NYI");
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97 }
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98 inline void do_short() {
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99 /* TODO : To be implemented */
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100 guarantee(false, "NYI");
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101 }
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102 inline void do_float() {
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103 /* TODO : To be implemented */
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104 guarantee(false, "NYI");
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105 }
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106 inline void do_double() {
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107 /* TODO : To be implemented */
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108 guarantee(false, "NYI");
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109 }
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110
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111 inline void do_object() {
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112 /* TODO : To be implemented */
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113 guarantee(false, "NYI");
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114 }
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115 inline void do_object(int begin, int end) {
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116 /* TODO : To be implemented */
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117 guarantee(false, "NYI");
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118 }
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119 inline void do_array(int begin, int end) {
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120 /* TODO : To be implemented */
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121 guarantee(false, "NYI");
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122 }
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123 inline void do_void() {
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124 /* TODO : To be implemented */
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125 guarantee(false, "NYI");
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126 }
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127 };
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128
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129 #endif // KERNEL_ARGUMENTS_HPP