1/*
2 * Copyright (c) 2002, 2016, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2012, 2016 SAP SE. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26#ifndef CPU_PPC_VM_STUBROUTINES_PPC_HPP
27#define CPU_PPC_VM_STUBROUTINES_PPC_HPP
28
29// This file holds the platform specific parts of the StubRoutines
30// definition. See stubRoutines.hpp for a description on how to
31// extend it.
32
33static bool returns_to_call_stub(address return_pc) { return return_pc == _call_stub_return_address; }
34
35enum platform_dependent_constants {
36  code_size1 = 20000,          // simply increase if too small (assembler will crash if too small)
37  code_size2 = 20000           // simply increase if too small (assembler will crash if too small)
38};
39
40// CRC32 Intrinsics.
41#define CRC32_COLUMN_SIZE 256
42#define CRC32_BYFOUR
43#ifdef  CRC32_BYFOUR
44  #define CRC32_TABLES 8
45#else
46  #define CRC32_TABLES 1
47#endif
48#define CRC32_CONSTANTS_SIZE 1084
49#define CRC32_BARRET_CONSTANTS 10
50
51class ppc64 {
52 friend class StubGenerator;
53
54 private:
55
56  // CRC32 Intrinsics.
57  static juint _crc_table[CRC32_TABLES][CRC32_COLUMN_SIZE];
58  static juint* _constants;
59  static juint* _barret_constants;
60
61 public:
62
63  // CRC32 Intrinsics.
64  static void generate_load_crc_table_addr(MacroAssembler* masm, Register table);
65  static void generate_load_crc_constants_addr(MacroAssembler* masm, Register table);
66  static void generate_load_crc_barret_constants_addr(MacroAssembler* masm, Register table);
67  static juint* generate_crc_constants();
68  static juint* generate_crc_barret_constants();
69
70};
71
72#endif // CPU_PPC_VM_STUBROUTINES_PPC_HPP
73