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annotate src/gpu/ptx/vm/ptxKernelArguments.cpp @ 11670:891fa65ef9ec

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Merge.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Mon, 16 Sep 2013 19:56:54 +0200
parents 91e5f927af63
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
49bb1bc983c6 Implement several missing PTX codegen features; return value capture and method args passing of java method executed on GPU.
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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 #include "precompiled.hpp"
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26 #include "ptxKernelArguments.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 }
49bb1bc983c6 Implement several missing PTX codegen features; return value capture and method args passing of java method executed on GPU.
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124 *((gpu::Ptx::CUdeviceptr*) &_kernelArgBuffer[_bufferOffset]) = val.b;
49bb1bc983c6 Implement several missing PTX codegen features; return value capture and method args passing of java method executed on GPU.
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125 _bufferOffset += sizeof(val.b);
49bb1bc983c6 Implement several missing PTX codegen features; return value capture and method args passing of java method executed on GPU.
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126 }
49bb1bc983c6 Implement several missing PTX codegen features; return value capture and method args passing of java method executed on GPU.
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127 return;
49bb1bc983c6 Implement several missing PTX codegen features; return value capture and method args passing of java method executed on GPU.
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128 }
49bb1bc983c6 Implement several missing PTX codegen features; return value capture and method args passing of java method executed on GPU.
bharadwaj
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129
49bb1bc983c6 Implement several missing PTX codegen features; return value capture and method args passing of java method executed on GPU.
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130 // TODO implement other do_*