Mercurial > hg > graal-compiler
annotate src/gpu/ptx/vm/ptxKernelArguments.hpp @ 12653:1a7e7011a341
* PTX kernel argument buffer now has naturally aligned arguments as required by PTX JIT compiler.
* Change dynamic loading of CUDA driver API functions to load 32-bit or 64-bit versions of depending on the the host architecture.
* Add ability to generate PTX kernels to be launched both on 32-bit and 64-bit hosts.
* Use Unified Virtual Memory APIs to perform array argument marshalling.
* PTX array storage test runs on the device and returns correct results.
* More integer test failures on GPU fixed.
author | S.Bharadwaj Yadavalli <bharadwaj.yadavalli@oracle.com> |
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date | Fri, 01 Nov 2013 18:34:03 -0400 |
parents | f020e149c1b6 |
children | 220ed109bf77 |
rev | line source |
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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_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 private: |
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49 // Array of java argument oops |
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50 arrayOop _args; |
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51 // Current index into _args |
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52 int _index; |
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53 // Flag to indicate successful creation of kernel argument buffer |
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54 bool _success; |
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55 |
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56 // Get next java argument |
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57 oop next_arg(BasicType expectedType); |
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58 |
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59 public: |
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60 PTXKernelArguments(Symbol* signature, arrayOop args, bool is_static) : SignatureIterator(signature) { |
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61 this->_return_type = T_ILLEGAL; |
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62 _index = 0; |
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63 _args = args; |
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64 _success = true; |
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65 _bufferOffset = 0; |
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66 _dev_return_value = 0; |
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67 if (!is_static) { |
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68 // TODO : Create a device argument for receiver object and add it to _kernelBuffer |
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69 tty->print_cr("{CUDA] ****** TODO: Support for execution of non-static java methods not implemented yet."); |
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70 } |
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71 // Iterate over the entire signature |
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72 iterate(); |
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73 assert((_success && (_index == args->length())), "arg count mismatch with signature"); |
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74 } |
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75 |
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76 inline char* device_argument_buffer() { |
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77 return _kernelArgBuffer; |
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78 } |
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79 |
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80 inline size_t device_argument_buffer_size() { |
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81 return _bufferOffset; |
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82 } |
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83 |
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84 // Get the return oop value |
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85 oop get_return_oop(); |
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86 |
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87 // get device return value ptr |
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88 gpu::Ptx::CUdeviceptr get_dev_return_value() { |
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89 return _dev_return_value; |
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90 } |
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91 |
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92 /* |
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93 * Pad kernel argument buffer to naturally align for given size. |
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94 */ |
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95 void pad_kernel_argument_buffer(size_t); |
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96 |
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97 void do_byte(); |
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98 void do_bool(); |
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99 void do_int(); |
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100 void do_float(); |
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101 void do_double(); |
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102 void do_long(); |
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103 void do_array(int begin, int end); |
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104 void do_void(); |
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105 |
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106 inline void do_char() { |
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107 /* TODO : To be implemented */ |
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108 guarantee(false, "do_char:NYI"); |
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109 } |
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110 inline void do_short() { |
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111 /* TODO : To be implemented */ |
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112 guarantee(false, "do_short:NYI"); |
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113 } |
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114 inline void do_object() { |
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115 /* TODO : To be implemented */ |
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116 guarantee(false, "do_object:NYI"); |
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117 } |
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118 |
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119 inline void do_object(int begin, int end) { |
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120 /* TODO : To be implemented */ |
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121 guarantee(false, "do_object(II):NYI"); |
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122 } |
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123 |
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124 }; |
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125 |
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126 #endif // KERNEL_ARGUMENTS_HPP |