Mercurial > hg > graal-jvmci-8
annotate src/gpu/ptx/vm/kernelArguments.cpp @ 11485:49bb1bc983c6
Implement several missing PTX codegen features; return value capture and method args passing of java method executed on GPU.
author | bharadwaj |
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date | Fri, 30 Aug 2013 16:39:05 -0400 |
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11485
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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 #include "precompiled.hpp" |
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26 #include "kernelArguments.hpp" |
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27 #include "runtime/javaCalls.hpp" |
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28 |
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29 gpu::Ptx::cuda_cu_memalloc_func_t gpu::Ptx::_cuda_cu_memalloc; |
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30 gpu::Ptx::cuda_cu_memcpy_htod_func_t gpu::Ptx::_cuda_cu_memcpy_htod; |
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31 |
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32 // Get next java argument |
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33 oop PTXKernelArguments::next_arg(BasicType expectedType) { |
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34 assert(_index < _args->length(), "out of bounds"); |
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35 oop arg=((objArrayOop) (_args))->obj_at(_index++); |
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36 assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch"); |
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37 return arg; |
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38 } |
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39 |
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40 void PTXKernelArguments::do_int() { |
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41 // If the parameter is a return value, |
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42 if (is_return_type()) { |
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43 // Allocate device memory for T_INT return value pointer on device. Size in bytes |
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44 int status = gpu::Ptx::_cuda_cu_memalloc(&_return_value_ptr, T_INT_BYTE_SIZE); |
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45 if (status != GRAAL_CUDA_SUCCESS) { |
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46 tty->print_cr("[CUDA] *** Error (%d) Failed to allocate memory for return value pointer on device", status); |
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47 _success = false; |
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48 return; |
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49 } |
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50 // Push _return_value_ptr to _kernelBuffer |
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51 *((gpu::Ptx::CUdeviceptr*) &_kernelArgBuffer[_bufferOffset]) = _return_value_ptr; |
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52 _bufferOffset += sizeof(_return_value_ptr); |
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53 } |
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54 else { |
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55 // Get the next java argument and its value which should be a T_INT |
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56 oop arg = next_arg(T_INT); |
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57 // Copy the java argument value to kernelArgBuffer |
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58 jvalue intval; |
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59 if (java_lang_boxing_object::get_value(arg, &intval) != T_INT) { |
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60 tty->print_cr("[CUDA] *** Error: Unexpected argument type; expecting T_INT"); |
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61 _success = false; |
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62 return; |
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63 } |
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64 *((gpu::Ptx::CUdeviceptr*) &_kernelArgBuffer[_bufferOffset]) = intval.i; |
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65 _bufferOffset += sizeof(intval.i); |
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66 } |
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67 return; |
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68 } |
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69 |
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70 void PTXKernelArguments::do_long() { |
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71 // If the parameter is a return value, |
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72 if (is_return_type()) { |
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73 // Allocate device memory for T_LONG return value pointer on device. Size in bytes |
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74 int status = gpu::Ptx::_cuda_cu_memalloc(&_return_value_ptr, T_LONG_BYTE_SIZE); |
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75 if (status != GRAAL_CUDA_SUCCESS) { |
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76 tty->print_cr("[CUDA] *** Error (%d) Failed to allocate memory for return value pointer on device", status); |
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77 _success = false; |
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78 return; |
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79 } |
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80 // Push _return_value_ptr to _kernelBuffer |
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81 *((gpu::Ptx::CUdeviceptr*) &_kernelArgBuffer[_bufferOffset]) = _return_value_ptr; |
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82 _bufferOffset += sizeof(_return_value_ptr); |
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83 } |
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84 else { |
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85 // Get the next java argument and its value which should be a T_LONG |
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86 oop arg = next_arg(T_LONG); |
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87 // Copy the java argument value to kernelArgBuffer |
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88 jvalue val; |
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89 if (java_lang_boxing_object::get_value(arg, &val) != T_LONG) { |
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90 tty->print_cr("[CUDA] *** Error: Unexpected argument type; expecting T_LONG"); |
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91 _success = false; |
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92 return; |
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93 } |
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94 *((gpu::Ptx::CUdeviceptr*) &_kernelArgBuffer[_bufferOffset]) = val.j; |
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95 _bufferOffset += sizeof(val.j); |
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96 } |
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97 return; |
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98 } |
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99 |
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100 void PTXKernelArguments::do_byte() { |
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101 // If the parameter is a return value, |
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102 if (is_return_type()) { |
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103 // Allocate device memory for T_BYTE return value pointer on device. Size in bytes |
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104 int status = gpu::Ptx::_cuda_cu_memalloc(&_return_value_ptr, T_BYTE_SIZE); |
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105 if (status != GRAAL_CUDA_SUCCESS) { |
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106 tty->print_cr("[CUDA] *** Error (%d) Failed to allocate memory for return value pointer on device", status); |
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107 _success = false; |
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108 return; |
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109 } |
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110 // Push _return_value_ptr to _kernelBuffer |
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111 *((gpu::Ptx::CUdeviceptr*) &_kernelArgBuffer[_bufferOffset]) = _return_value_ptr; |
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112 _bufferOffset += sizeof(_return_value_ptr); |
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113 } |
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114 else { |
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115 // Get the next java argument and its value which should be a T_BYTE |
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116 oop arg = next_arg(T_BYTE); |
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117 // Copy the java argument value to kernelArgBuffer |
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118 jvalue val; |
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119 if (java_lang_boxing_object::get_value(arg, &val) != T_BYTE) { |
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120 tty->print_cr("[CUDA] *** Error: Unexpected argument type; expecting T_BYTE"); |
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121 _success = false; |
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122 return; |
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123 } |
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124 *((gpu::Ptx::CUdeviceptr*) &_kernelArgBuffer[_bufferOffset]) = val.b; |
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125 _bufferOffset += sizeof(val.b); |
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126 } |
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127 return; |
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128 } |
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129 |
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130 // TODO implement other do_* |