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src/os_cpu/solaris_sparc/vm/orderAccess_solaris_sparc.inline.hpp@f90c822e73f8

src/os_cpu/solaris_sparc/vm/orderAccess_solaris_sparc.inline.hpp

Wed, 27 Apr 2016 01:25:04 +0800

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aoqi
date
Wed, 27 Apr 2016 01:25:04 +0800
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     1 /*

     2  * Copyright (c) 2003, 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 OS_CPU_SOLARIS_SPARC_VM_ORDERACCESS_SOLARIS_SPARC_INLINE_HPP

    26 #define OS_CPU_SOLARIS_SPARC_VM_ORDERACCESS_SOLARIS_SPARC_INLINE_HPP

    27 

    28 #include "runtime/atomic.inline.hpp"

    29 #include "runtime/orderAccess.hpp"

    30 #include "vm_version_sparc.hpp"

    31 

    32 // Implementation of class OrderAccess.

    33 

    34 // Assume TSO.

    35 

    36 // In solaris_sparc.il

    37 extern "C" void _OrderAccess_acquire();

    38 extern "C" void _OrderAccess_fence();

    39 

    40 inline void OrderAccess::loadload()   { acquire(); }

    41 inline void OrderAccess::storestore() { release(); }

    42 inline void OrderAccess::loadstore()  { acquire(); }

    43 inline void OrderAccess::storeload()  { fence(); }

    44 

    45 #ifdef _GNU_SOURCE

    46 

    47 inline void OrderAccess::acquire() {

    48   __asm__ volatile ("nop" : : :);

    49 }

    50 

    51 inline void OrderAccess::release() {

    52   jint* local_dummy = (jint*)&local_dummy;

    53   __asm__ volatile("stw %%g0, [%0]" : : "r" (local_dummy) : "memory");

    54 }

    55 

    56 inline void OrderAccess::fence() {

    57   __asm__ volatile ("membar  #StoreLoad" : : :);

    58 }

    59 

    60 #else  // _GNU_SOURCE

    61 

    62 inline void OrderAccess::acquire() {

    63   _OrderAccess_acquire();

    64 }

    65 

    66 inline void OrderAccess::release() {

    67   // Avoid hitting the same cache-line from

    68   // different threads.

    69   volatile jint local_dummy = 0;

    70 }

    71 

    72 inline void OrderAccess::fence() {

    73   _OrderAccess_fence();

    74 }

    75 

    76 #endif // _GNU_SOURCE

    77 

    78 inline jbyte    OrderAccess::load_acquire(volatile jbyte*   p) { return *p; }

    79 inline jshort   OrderAccess::load_acquire(volatile jshort*  p) { return *p; }

    80 inline jint     OrderAccess::load_acquire(volatile jint*    p) { return *p; }

    81 inline jlong    OrderAccess::load_acquire(volatile jlong*   p) { return Atomic::load(p); }

    82 inline jubyte   OrderAccess::load_acquire(volatile jubyte*  p) { return *p; }

    83 inline jushort  OrderAccess::load_acquire(volatile jushort* p) { return *p; }

    84 inline juint    OrderAccess::load_acquire(volatile juint*   p) { return *p; }

    85 inline julong   OrderAccess::load_acquire(volatile julong*  p) { return Atomic::load((volatile jlong*)p); }

    86 inline jfloat   OrderAccess::load_acquire(volatile jfloat*  p) { return *p; }

    87 inline jdouble  OrderAccess::load_acquire(volatile jdouble* p) { return *p; }

    88 

    89 inline intptr_t OrderAccess::load_ptr_acquire(volatile intptr_t*   p) { return *p; }

    90 inline void*    OrderAccess::load_ptr_acquire(volatile void*       p) { return *(void* volatile *)p; }

    91 inline void*    OrderAccess::load_ptr_acquire(const volatile void* p) { return *(void* const volatile *)p; }

    92 

    93 inline void     OrderAccess::release_store(volatile jbyte*   p, jbyte   v) { *p = v; }

    94 inline void     OrderAccess::release_store(volatile jshort*  p, jshort  v) { *p = v; }

    95 inline void     OrderAccess::release_store(volatile jint*    p, jint    v) { *p = v; }

    96 inline void     OrderAccess::release_store(volatile jlong*   p, jlong   v) { Atomic::store(v, p); }

    97 inline void     OrderAccess::release_store(volatile jubyte*  p, jubyte  v) { *p = v; }

    98 inline void     OrderAccess::release_store(volatile jushort* p, jushort v) { *p = v; }

    99 inline void     OrderAccess::release_store(volatile juint*   p, juint   v) { *p = v; }

   100 inline void     OrderAccess::release_store(volatile julong*  p, julong  v) { Atomic::store((jlong)v, (volatile jlong*)p); }

   101 inline void     OrderAccess::release_store(volatile jfloat*  p, jfloat  v) { *p = v; }

   102 inline void     OrderAccess::release_store(volatile jdouble* p, jdouble v) { *p = v; }

   103 

   104 inline void     OrderAccess::release_store_ptr(volatile intptr_t* p, intptr_t v) { *p = v; }

   105 inline void     OrderAccess::release_store_ptr(volatile void*     p, void*    v) { *(void* volatile *)p = v; }

   106 

   107 inline void     OrderAccess::store_fence(jbyte*   p, jbyte   v) { *p = v; fence(); }

   108 inline void     OrderAccess::store_fence(jshort*  p, jshort  v) { *p = v; fence(); }

   109 inline void     OrderAccess::store_fence(jint*    p, jint    v) { *p = v; fence(); }

   110 inline void     OrderAccess::store_fence(jlong*   p, jlong   v) { *p = v; fence(); }

   111 inline void     OrderAccess::store_fence(jubyte*  p, jubyte  v) { *p = v; fence(); }

   112 inline void     OrderAccess::store_fence(jushort* p, jushort v) { *p = v; fence(); }

   113 inline void     OrderAccess::store_fence(juint*   p, juint   v) { *p = v; fence(); }

   114 inline void     OrderAccess::store_fence(julong*  p, julong  v) { *p = v; fence(); }

   115 inline void     OrderAccess::store_fence(jfloat*  p, jfloat  v) { *p = v; fence(); }

   116 inline void     OrderAccess::store_fence(jdouble* p, jdouble v) { *p = v; fence(); }

   117 

   118 inline void     OrderAccess::store_ptr_fence(intptr_t* p, intptr_t v) { *p = v; fence(); }

   119 inline void     OrderAccess::store_ptr_fence(void**    p, void*    v) { *p = v; fence(); }

   120 

   121 inline void     OrderAccess::release_store_fence(volatile jbyte*   p, jbyte   v) { *p = v; fence(); }

   122 inline void     OrderAccess::release_store_fence(volatile jshort*  p, jshort  v) { *p = v; fence(); }

   123 inline void     OrderAccess::release_store_fence(volatile jint*    p, jint    v) { *p = v; fence(); }

   124 inline void     OrderAccess::release_store_fence(volatile jlong*   p, jlong   v) { release_store(p, v); fence(); }

   125 inline void     OrderAccess::release_store_fence(volatile jubyte*  p, jubyte  v) { *p = v; fence(); }

   126 inline void     OrderAccess::release_store_fence(volatile jushort* p, jushort v) { *p = v; fence(); }

   127 inline void     OrderAccess::release_store_fence(volatile juint*   p, juint   v) { *p = v; fence(); }

   128 inline void     OrderAccess::release_store_fence(volatile julong*  p, julong  v) { release_store(p, v); fence(); }

   129 inline void     OrderAccess::release_store_fence(volatile jfloat*  p, jfloat  v) { *p = v; fence(); }

   130 inline void     OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { *p = v; fence(); }

   131 

   132 inline void     OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) { *p = v; fence(); }

   133 inline void     OrderAccess::release_store_ptr_fence(volatile void*     p, void*    v) { *(void* volatile *)p = v; fence(); }

   134 

   135 #endif // OS_CPU_SOLARIS_SPARC_VM_ORDERACCESS_SOLARIS_SPARC_INLINE_HPP

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