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annotate src/share/vm/runtime/gpu.hpp @ 11842:8d8f63069f58

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PTX warp limiter to available GPU processors
author Morris Meyer <morris.meyer@oracle.com>
date Mon, 30 Sep 2013 13:03:47 -0400
parents 365d8f385fb5
children f1a55428a8d7
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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 SHARE_VM_RUNTIME_GPU_HPP
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26 #define SHARE_VM_RUNTIME_GPU_HPP
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27
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28 #include "runtime/atomic.hpp"
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29 #include "oops/symbol.hpp"
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30
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31 class PTXKernelArguments;
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32
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33 // gpu defines the interface to the graphics processor; this includes traditional
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34 // GPU services such as graphics kernel load and execute.
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35
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36
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37 class gpu: AllStatic {
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38 public:
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39
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40 enum TargetGPUIL { NONE = 0, PTX = 1, HSAIL = 2};
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41 static void init(void);
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42
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43 static void probe_gpu();
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44
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45 static void initialize_gpu();
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46
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47 static int available_processors();
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48
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49 static void * generate_kernel(unsigned char *code, int code_len, const char *name);
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50
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51 static bool execute_warp(int dimX, int dimY, int dimZ,
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52 address kernel, PTXKernelArguments & ptxka, JavaValue & ret);
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53
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54 static bool execute_kernel(address kernel, PTXKernelArguments & ptxka, JavaValue & ret);
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55
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56 static void set_available(bool value) {
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57 _available = value;
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58 }
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59
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60 static bool is_available() { return _available; }
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61
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62 static void set_initialized(bool value) {
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63 _initialized = value;
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64 }
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65
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66 static bool is_initialized() { return _initialized; }
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67
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68 static void set_gpu_linkage(bool value) {
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69 _gpu_linkage = value;
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70 }
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71
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72 static bool has_gpu_linkage() { return _gpu_linkage; }
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73
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74 static void set_target_il_type(TargetGPUIL value) {
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75 _targetIL = value;
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76 }
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77
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78 static enum gpu::TargetGPUIL get_target_il_type() {
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79 return _targetIL;
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80 }
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81
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82 protected:
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83 static bool _available;
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84 static bool _gpu_linkage;
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85 static bool _initialized;
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86 static TargetGPUIL _targetIL;
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87
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88 // Platform dependent stuff
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89 #ifdef TARGET_OS_FAMILY_linux
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90 # include "gpu_linux.hpp"
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91 #endif
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92 #ifdef TARGET_OS_FAMILY_solaris
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93 #endif
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94 #ifdef TARGET_OS_FAMILY_windows
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95 #endif
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96 #ifdef TARGET_OS_FAMILY_bsd
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97 # include "gpu_bsd.hpp"
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98 #endif
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99
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100 public:
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101 # include "ptx/vm/gpu_ptx.hpp"
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102
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103 };
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104
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105
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106 #endif // SHARE_VM_RUNTIME_GPU_HPP