1 /* |
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2 * Copyright (c) 1999, 2014, 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 OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_INLINE_HPP |
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26 #define OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_INLINE_HPP |
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27 |
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28 #include "runtime/atomic.hpp" |
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29 #include "runtime/os.hpp" |
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30 |
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31 // Implementation of class atomic |
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32 |
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33 inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; } |
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34 inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; } |
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35 inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; } |
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36 inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; } |
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37 inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; } |
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38 |
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39 inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; } |
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40 inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; } |
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41 inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; } |
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42 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; } |
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43 inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; } |
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44 |
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45 inline void Atomic::inc (volatile jint* dest) { (void)add (1, dest); } |
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46 inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); } |
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47 inline void Atomic::inc_ptr(volatile void* dest) { (void)add_ptr(1, dest); } |
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48 |
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49 inline void Atomic::dec (volatile jint* dest) { (void)add (-1, dest); } |
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50 inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); } |
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51 inline void Atomic::dec_ptr(volatile void* dest) { (void)add_ptr(-1, dest); } |
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52 |
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53 |
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54 #ifdef _LP64 |
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55 |
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56 inline void Atomic::store(jlong store_value, jlong* dest) { *dest = store_value; } |
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57 inline void Atomic::store(jlong store_value, volatile jlong* dest) { *dest = store_value; } |
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58 inline jlong Atomic::load(volatile jlong* src) { return *src; } |
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59 |
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60 #else |
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61 |
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62 extern "C" void _Atomic_move_long_v9(volatile jlong* src, volatile jlong* dst); |
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63 |
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64 inline void Atomic_move_long(volatile jlong* src, volatile jlong* dst) { |
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65 _Atomic_move_long_v9(src, dst); |
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66 } |
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67 |
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68 inline jlong Atomic::load(volatile jlong* src) { |
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69 volatile jlong dest; |
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70 Atomic_move_long(src, &dest); |
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71 return dest; |
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72 } |
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73 |
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74 inline void Atomic::store(jlong store_value, jlong* dest) { |
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75 Atomic_move_long((volatile jlong*)&store_value, (volatile jlong*)dest); |
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76 } |
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77 |
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78 inline void Atomic::store(jlong store_value, volatile jlong* dest) { |
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79 Atomic_move_long((volatile jlong*)&store_value, dest); |
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80 } |
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81 |
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82 #endif |
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83 |
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84 #ifdef _GNU_SOURCE |
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85 |
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86 inline jint Atomic::add (jint add_value, volatile jint* dest) { |
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87 intptr_t rv; |
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88 __asm__ volatile( |
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89 "1: \n\t" |
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90 " ld [%2], %%o2\n\t" |
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91 " add %1, %%o2, %%o3\n\t" |
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92 " cas [%2], %%o2, %%o3\n\t" |
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93 " cmp %%o2, %%o3\n\t" |
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94 " bne 1b\n\t" |
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95 " nop\n\t" |
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96 " add %1, %%o2, %0\n\t" |
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97 : "=r" (rv) |
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98 : "r" (add_value), "r" (dest) |
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99 : "memory", "o2", "o3"); |
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100 return rv; |
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101 } |
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102 |
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103 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { |
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104 intptr_t rv; |
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105 #ifdef _LP64 |
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106 __asm__ volatile( |
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107 "1: \n\t" |
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108 " ldx [%2], %%o2\n\t" |
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109 " add %0, %%o2, %%o3\n\t" |
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110 " casx [%2], %%o2, %%o3\n\t" |
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111 " cmp %%o2, %%o3\n\t" |
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112 " bne %%xcc, 1b\n\t" |
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113 " nop\n\t" |
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114 " add %0, %%o2, %0\n\t" |
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115 : "=r" (rv) |
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116 : "r" (add_value), "r" (dest) |
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117 : "memory", "o2", "o3"); |
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118 #else //_LP64 |
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119 __asm__ volatile( |
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120 "1: \n\t" |
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121 " ld [%2], %%o2\n\t" |
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122 " add %1, %%o2, %%o3\n\t" |
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123 " cas [%2], %%o2, %%o3\n\t" |
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124 " cmp %%o2, %%o3\n\t" |
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125 " bne 1b\n\t" |
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126 " nop\n\t" |
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127 " add %1, %%o2, %0\n\t" |
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128 : "=r" (rv) |
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129 : "r" (add_value), "r" (dest) |
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130 : "memory", "o2", "o3"); |
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131 #endif // _LP64 |
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132 return rv; |
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133 } |
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134 |
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135 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { |
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136 return (void*)add_ptr((intptr_t)add_value, (volatile intptr_t*)dest); |
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137 } |
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138 |
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139 |
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140 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { |
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141 intptr_t rv = exchange_value; |
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142 __asm__ volatile( |
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143 " swap [%2],%1\n\t" |
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144 : "=r" (rv) |
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145 : "0" (exchange_value) /* we use same register as for return value */, "r" (dest) |
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146 : "memory"); |
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147 return rv; |
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148 } |
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149 |
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150 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { |
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151 intptr_t rv = exchange_value; |
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152 #ifdef _LP64 |
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153 __asm__ volatile( |
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154 "1:\n\t" |
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155 " mov %1, %%o3\n\t" |
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156 " ldx [%2], %%o2\n\t" |
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157 " casx [%2], %%o2, %%o3\n\t" |
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158 " cmp %%o2, %%o3\n\t" |
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159 " bne %%xcc, 1b\n\t" |
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160 " nop\n\t" |
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161 " mov %%o2, %0\n\t" |
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162 : "=r" (rv) |
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163 : "r" (exchange_value), "r" (dest) |
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164 : "memory", "o2", "o3"); |
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165 #else //_LP64 |
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166 __asm__ volatile( |
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167 "swap [%2],%1\n\t" |
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168 : "=r" (rv) |
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169 : "0" (exchange_value) /* we use same register as for return value */, "r" (dest) |
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170 : "memory"); |
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171 #endif // _LP64 |
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172 return rv; |
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173 } |
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174 |
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175 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { |
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176 return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest); |
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177 } |
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178 |
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179 |
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180 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value, cmpxchg_memory_order order) { |
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181 jint rv; |
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182 __asm__ volatile( |
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183 " cas [%2], %3, %0" |
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184 : "=r" (rv) |
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185 : "0" (exchange_value), "r" (dest), "r" (compare_value) |
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186 : "memory"); |
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187 return rv; |
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188 } |
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189 |
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190 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value, cmpxchg_memory_order order) { |
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191 #ifdef _LP64 |
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192 jlong rv; |
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193 __asm__ volatile( |
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194 " casx [%2], %3, %0" |
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195 : "=r" (rv) |
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196 : "0" (exchange_value), "r" (dest), "r" (compare_value) |
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197 : "memory"); |
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198 return rv; |
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199 #else //_LP64 |
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200 volatile jlong_accessor evl, cvl, rv; |
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201 evl.long_value = exchange_value; |
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202 cvl.long_value = compare_value; |
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203 |
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204 __asm__ volatile( |
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205 " sllx %2, 32, %2\n\t" |
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206 " srl %3, 0, %3\n\t" |
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207 " or %2, %3, %2\n\t" |
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208 " sllx %5, 32, %5\n\t" |
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209 " srl %6, 0, %6\n\t" |
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210 " or %5, %6, %5\n\t" |
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211 " casx [%4], %5, %2\n\t" |
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212 " srl %2, 0, %1\n\t" |
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213 " srlx %2, 32, %0\n\t" |
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214 : "=r" (rv.words[0]), "=r" (rv.words[1]) |
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215 : "r" (evl.words[0]), "r" (evl.words[1]), "r" (dest), "r" (cvl.words[0]), "r" (cvl.words[1]) |
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216 : "memory"); |
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217 |
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218 return rv.long_value; |
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219 #endif //_LP64 |
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220 } |
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221 |
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222 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value, cmpxchg_memory_order order) { |
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223 intptr_t rv; |
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224 #ifdef _LP64 |
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225 __asm__ volatile( |
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226 " casx [%2], %3, %0" |
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227 : "=r" (rv) |
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228 : "0" (exchange_value), "r" (dest), "r" (compare_value) |
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229 : "memory"); |
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230 #else //_LP64 |
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231 __asm__ volatile( |
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232 " cas [%2], %3, %0" |
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233 : "=r" (rv) |
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234 : "0" (exchange_value), "r" (dest), "r" (compare_value) |
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235 : "memory"); |
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236 #endif // _LP64 |
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237 return rv; |
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238 } |
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239 |
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240 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value, cmpxchg_memory_order order) { |
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241 return (void*)cmpxchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest, (intptr_t)compare_value, order); |
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242 } |
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243 |
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244 #else // _GNU_SOURCE |
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245 |
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246 #if defined(COMPILER2) || defined(_LP64) |
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247 |
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248 // This is the interface to the atomic instructions in solaris_sparc.il. |
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249 // It's very messy because we need to support v8 and these instructions |
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250 // are illegal there. When sparc v8 is dropped, we can drop out lots of |
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251 // this code. Also compiler2 does not support v8 so the conditional code |
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252 // omits the instruction set check. |
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253 |
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254 extern "C" jint _Atomic_swap32(jint exchange_value, volatile jint* dest); |
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255 extern "C" intptr_t _Atomic_swap64(intptr_t exchange_value, volatile intptr_t* dest); |
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256 |
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257 extern "C" jint _Atomic_cas32(jint exchange_value, volatile jint* dest, jint compare_value); |
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258 extern "C" intptr_t _Atomic_cas64(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value); |
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259 extern "C" jlong _Atomic_casl (jlong exchange_value, volatile jlong* dest, jlong compare_value); |
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260 |
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261 extern "C" jint _Atomic_add32(jint inc, volatile jint* dest); |
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262 extern "C" intptr_t _Atomic_add64(intptr_t add_value, volatile intptr_t* dest); |
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263 |
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264 |
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265 inline jint Atomic::add (jint add_value, volatile jint* dest) { |
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266 return _Atomic_add32(add_value, dest); |
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267 } |
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268 |
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269 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { |
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270 #ifdef _LP64 |
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271 return _Atomic_add64(add_value, dest); |
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272 #else //_LP64 |
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273 return _Atomic_add32(add_value, dest); |
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274 #endif // _LP64 |
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275 } |
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276 |
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277 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { |
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278 return (void*)add_ptr((intptr_t)add_value, (volatile intptr_t*)dest); |
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279 } |
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280 |
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281 |
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282 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { |
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283 return _Atomic_swap32(exchange_value, dest); |
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284 } |
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285 |
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286 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { |
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287 #ifdef _LP64 |
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288 return _Atomic_swap64(exchange_value, dest); |
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289 #else // _LP64 |
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290 return _Atomic_swap32(exchange_value, dest); |
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291 #endif // _LP64 |
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292 } |
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293 |
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294 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { |
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295 return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest); |
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296 } |
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297 |
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298 |
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299 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value, cmpxchg_memory_order order) { |
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300 return _Atomic_cas32(exchange_value, dest, compare_value); |
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301 } |
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302 |
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303 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value, cmpxchg_memory_order order) { |
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304 #ifdef _LP64 |
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305 // Return 64 bit value in %o0 |
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306 return _Atomic_cas64((intptr_t)exchange_value, (intptr_t *)dest, (intptr_t)compare_value); |
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307 #else // _LP64 |
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308 // Return 64 bit value in %o0,%o1 by hand |
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309 return _Atomic_casl(exchange_value, dest, compare_value); |
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310 #endif // _LP64 |
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311 } |
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312 |
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313 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value, cmpxchg_memory_order order) { |
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314 #ifdef _LP64 |
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315 return _Atomic_cas64(exchange_value, dest, compare_value); |
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316 #else // _LP64 |
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317 return _Atomic_cas32(exchange_value, dest, compare_value); |
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318 #endif // _LP64 |
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319 } |
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320 |
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321 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value, cmpxchg_memory_order order) { |
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322 return (void*)cmpxchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest, (intptr_t)compare_value, order); |
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323 } |
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324 |
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325 |
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326 #else // _LP64 || COMPILER2 |
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327 |
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328 |
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329 // 32-bit compiler1 only |
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330 |
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331 inline jint Atomic::add (jint add_value, volatile jint* dest) { |
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332 return (*os::atomic_add_func)(add_value, dest); |
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333 } |
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334 |
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335 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { |
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336 return (intptr_t)add((jint)add_value, (volatile jint*)dest); |
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337 } |
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338 |
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339 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { |
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340 return (void*)add((jint)add_value, (volatile jint*)dest); |
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341 } |
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342 |
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343 |
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344 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { |
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345 return (*os::atomic_xchg_func)(exchange_value, dest); |
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346 } |
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347 |
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348 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { |
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349 return (intptr_t)xchg((jint)exchange_value, (volatile jint*)dest); |
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350 } |
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351 |
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352 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { |
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353 return (void*)xchg((jint)exchange_value, (volatile jint*)dest); |
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354 } |
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355 |
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356 |
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357 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value, cmpxchg_memory_order order) { |
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358 return (*os::atomic_cmpxchg_func)(exchange_value, dest, compare_value); |
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359 } |
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360 |
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361 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value, cmpxchg_memory_order order) { |
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362 return (*os::atomic_cmpxchg_long_func)(exchange_value, dest, compare_value); |
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363 } |
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364 |
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365 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value, cmpxchg_memory_order order) { |
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366 return (intptr_t)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value, order); |
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367 } |
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368 |
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369 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value, cmpxchg_memory_order order) { |
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370 return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value, order); |
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371 } |
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372 |
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373 #endif // _LP64 || COMPILER2 |
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374 |
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375 #endif // _GNU_SOURCE |
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376 |
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377 #endif // OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_INLINE_HPP |
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