Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/gpu.cpp @ 13254:42aaf7306707
Teach Graal about Symbol and ConstantPool so we can move more logic into Java. We'll see how that ends...
author | twisti |
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date | Thu, 05 Dec 2013 18:13:04 -0800 |
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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 "runtime/gpu.hpp" |
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27 #include "runtime/handles.hpp" |
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28 |
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29 bool gpu::_available = false; // does the hardware exist? |
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30 bool gpu::_gpu_linkage = false; // is the driver library to access the GPU installed |
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31 bool gpu::_initialized = false; // is the GPU device initialized |
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32 gpu::TargetGPUIL gpu::_targetIL = gpu::NONE; // No GPU detected yet. |
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33 |
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34 void gpu::init() { |
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35 #if defined(TARGET_OS_FAMILY_bsd) || defined(TARGET_OS_FAMILY_linux) || defined(TARGET_OS_FAMILY_windows) |
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36 gpu::probe_gpu(); |
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37 if (gpu::get_target_il_type() == gpu::PTX) { |
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38 set_gpu_linkage(gpu::Ptx::probe_linkage()); |
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39 } else if (gpu::get_target_il_type() == gpu::HSAIL) { |
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40 set_gpu_linkage(gpu::Hsail::probe_linkage()); |
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41 } else { |
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42 set_gpu_linkage(false); |
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43 } |
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44 #endif |
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45 } |
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46 |
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47 void gpu::initialize_gpu() { |
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48 if (gpu::has_gpu_linkage()) { |
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49 if (gpu::get_target_il_type() == gpu::PTX) { |
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50 set_initialized(gpu::Ptx::initialize_gpu()); |
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51 } else if (gpu::get_target_il_type() == gpu::HSAIL) { |
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52 set_initialized(gpu::Hsail::initialize_gpu()); |
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53 } |
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54 } |
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55 } |
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56 |
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57 void * gpu::generate_kernel(unsigned char *code, int code_len, const char *name) { |
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58 if (gpu::has_gpu_linkage()) { |
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59 if (gpu::get_target_il_type() == gpu::PTX) { |
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60 return (gpu::Ptx::generate_kernel(code, code_len, name)); |
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61 } else if (gpu::get_target_il_type() == gpu::HSAIL) { |
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62 return (gpu::Hsail::generate_kernel(code, code_len, name)); |
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63 } |
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64 } |
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65 return NULL; |
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66 } |
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67 |
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68 bool gpu::execute_kernel(address kernel, PTXKernelArguments & ptxka, JavaValue& ret) { |
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69 if (gpu::has_gpu_linkage()) { |
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70 if (gpu::get_target_il_type() == gpu::PTX) { |
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71 return (gpu::Ptx::execute_kernel(kernel, ptxka, ret)); |
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72 } |
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73 // Add kernel execution functionality of other GPUs here |
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74 } |
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75 return false; |
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76 } |
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77 |
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78 // This is HSAIL specific to work with Sumatra JDK |
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79 bool gpu::execute_kernel_void_1d(address kernel, int dimX, jobject args, methodHandle& mh) { |
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80 if (gpu::has_gpu_linkage()) { |
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81 if (gpu::get_target_il_type() == gpu::HSAIL) { |
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82 return (gpu::Hsail::execute_kernel_void_1d(kernel, dimX, args, mh)); |
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83 } |
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84 } |
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85 return false; |
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86 |
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87 } |
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88 |
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89 |
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90 bool gpu::execute_warp(int dimX, int dimY, int dimZ, |
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91 address kernel, PTXKernelArguments & ptxka, JavaValue& ret) { |
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92 if (gpu::has_gpu_linkage()) { |
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93 if (gpu::get_target_il_type() == gpu::PTX) { |
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94 return (gpu::Ptx::execute_warp(dimX, dimY, dimZ, kernel, ptxka, ret)); |
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95 } |
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96 // Add kernel execution functionality of other GPUs here |
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97 } |
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98 return false; |
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99 } |
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100 |
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101 int gpu::available_processors() { |
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102 if (gpu::has_gpu_linkage()) { |
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103 if (gpu::get_target_il_type() == gpu::PTX) { |
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104 return (gpu::Ptx::total_cores()); |
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105 } |
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106 // Add kernel execution functionality of other GPUs here |
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107 } |
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108 return 0; |
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109 } |
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110 |