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comparison src/gpu/ptx/vm/ptxKernelArguments.hpp @ 11596:91e5f927af63

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Initial implementation of PTXRuntime (RegisterConfig, PTX description etc); guarded with new flag UseGPU. Specify -XX:+UseGPU to exercise this new implementation.
author bharadwaj
date Tue, 10 Sep 2013 22:39:50 -0400
parents src/gpu/ptx/vm/kernelArguments.hpp@c99e65785936
children d8659ad83fcc
comparison
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11595:003be97acdda 11596:91e5f927af63
1 /*
2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef KERNEL_ARGUMENTS_PTX_HPP
26 #define KERNEL_ARGUMENTS_PTX_HPP
27
28 #include "runtime/gpu.hpp"
29 #include "runtime/signature.hpp"
30
31 #define T_BYTE_SIZE 1
32 #define T_INT_BYTE_SIZE 4
33 #define T_LONG_BYTE_SIZE 8
34
35 class PTXKernelArguments : public SignatureIterator {
36 public:
37 // Buffer holding CUdeviceptr values that represent the kernel arguments
38 char _kernelArgBuffer[1024];
39 // Current offset into _kernelArgBuffer
40 size_t _bufferOffset;
41 gpu::Ptx::CUdeviceptr _return_value_ptr;
42 private:
43 // Array of java argument oops
44 arrayOop _args;
45 // Current index into _args
46 int _index;
47 // Flag to indicate successful creation of kernel argument buffer
48 bool _success;
49 // Get next java argument
50 oop next_arg(BasicType expectedType);
51
52 public:
53 PTXKernelArguments(Symbol* signature, arrayOop args, bool is_static) : SignatureIterator(signature) {
54 this->_return_type = T_ILLEGAL;
55 _index = 0;
56 _args = args;
57 _success = true;
58 _bufferOffset = 0;
59 _return_value_ptr = 0;
60 if (!is_static) {
61 // TODO : Create a device argument for receiver object and add it to _kernelBuffer
62 tty->print_cr("{CUDA] ****** TODO: Support for execution of non-static java methods not implemented yet.");
63 }
64 // Iterate over the entire signature
65 iterate();
66 assert((_success && (_index == args->length())), "arg count mismatch with signature");
67 }
68
69 inline char* device_argument_buffer() {
70 return _kernelArgBuffer;
71 }
72
73 inline size_t device_argument_buffer_size() {
74 return _bufferOffset;
75 }
76
77 // Get the return oop value
78 oop get_return_oop();
79
80 // get device return value ptr
81 gpu::Ptx::CUdeviceptr get_return_value_ptr() {
82 return _return_value_ptr;
83 }
84
85
86 void do_byte();
87 void do_int();
88 void do_long();
89
90 inline void do_bool() {
91 /* TODO : To be implemented */
92 guarantee(false, "NYI");
93 }
94 inline void do_char() {
95 /* TODO : To be implemented */
96 guarantee(false, "NYI");
97 }
98 inline void do_short() {
99 /* TODO : To be implemented */
100 guarantee(false, "NYI");
101 }
102 inline void do_float() {
103 /* TODO : To be implemented */
104 guarantee(false, "NYI");
105 }
106 inline void do_double() {
107 /* TODO : To be implemented */
108 guarantee(false, "NYI");
109 }
110
111 inline void do_object() {
112 /* TODO : To be implemented */
113 guarantee(false, "NYI");
114 }
115 inline void do_object(int begin, int end) {
116 /* TODO : To be implemented */
117 guarantee(false, "NYI");
118 }
119 inline void do_array(int begin, int end) {
120 /* TODO : To be implemented */
121 guarantee(false, "NYI");
122 }
123 inline void do_void() {
124 /* TODO : To be implemented */
125 guarantee(false, "NYI");
126 }
127 };
128
129 #endif // KERNEL_ARGUMENTS_HPP