jdk8-mips64-public/hotspot: src/os_cpu/linux_sparc/vm/atomic_linux_sparc.inline.hpp@7f77d17d0f13 (annotated)

src/os_cpu/linux_sparc/vm/atomic_linux_sparc.inline.hpp@7f77d17d0f13 (annotated)

src/os_cpu/linux_sparc/vm/atomic_linux_sparc.inline.hpp

Tue, 29 Apr 2014 22:05:10 -0700

author: mikael
date: Tue, 29 Apr 2014 22:05:10 -0700
changeset 6683: 7f77d17d0f13
parent 5283: 46c544b8fbfc
child 6876: 710a3c8b516e
permissions: -rw-r--r--

8042059: Various fixes to linux/sparc
Reviewed-by: twisti, kvn

 /*
  * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #ifndef OS_CPU_LINUX_SPARC_VM_ATOMIC_LINUX_SPARC_INLINE_HPP
 #define OS_CPU_LINUX_SPARC_VM_ATOMIC_LINUX_SPARC_INLINE_HPP
 #include "runtime/atomic.hpp"
 #include "runtime/os.hpp"
 #include "vm_version_sparc.hpp"
 // Implementation of class atomic
 inline void Atomic::store    (jbyte    store_value, jbyte*    dest) { *dest = store_value; }
 inline void Atomic::store    (jshort   store_value, jshort*   dest) { *dest = store_value; }
 inline void Atomic::store    (jint     store_value, jint*     dest) { *dest = store_value; }
 inline void Atomic::store    (jlong    store_value, jlong*    dest) { *dest = store_value; }
 inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; }
 inline void Atomic::store_ptr(void*    store_value, void*     dest) { *(void**)dest = store_value; }
 inline void Atomic::store    (jbyte    store_value, volatile jbyte*    dest) { *dest = store_value; }
 inline void Atomic::store    (jshort   store_value, volatile jshort*   dest) { *dest = store_value; }
 inline void Atomic::store    (jint     store_value, volatile jint*     dest) { *dest = store_value; }
 inline void Atomic::store    (jlong    store_value, volatile jlong*    dest) { *dest = store_value; }
 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; }
 inline void Atomic::store_ptr(void*    store_value, volatile void*     dest) { *(void* volatile *)dest = store_value; }
 inline void Atomic::inc    (volatile jint*     dest) { (void)add    (1, dest); }
 inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); }
 inline void Atomic::inc_ptr(volatile void*     dest) { (void)add_ptr(1, dest); }
 inline void Atomic::dec    (volatile jint*     dest) { (void)add    (-1, dest); }
 inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); }
 inline void Atomic::dec_ptr(volatile void*     dest) { (void)add_ptr(-1, dest); }
 inline jlong Atomic::load(volatile jlong* src) { return *src; }
 inline jint     Atomic::add    (jint     add_value, volatile jint*     dest) {
   intptr_t rv;
   __asm__ volatile(
     "1: \n\t"
     " ld     [%2], %%o2\n\t"
     " add    %1, %%o2, %%o3\n\t"
     " cas    [%2], %%o2, %%o3\n\t"
     " cmp    %%o2, %%o3\n\t"
     " bne    1b\n\t"
     "  nop\n\t"
     " add    %1, %%o2, %0\n\t"
     : "=r" (rv)
     : "r" (add_value), "r" (dest)
     : "memory", "o2", "o3");
   return rv;
 }
 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) {
   intptr_t rv;
 #ifdef _LP64
   __asm__ volatile(
     "1: \n\t"
     " ldx    [%2], %%o2\n\t"
     " add    %1, %%o2, %%o3\n\t"
     " casx   [%2], %%o2, %%o3\n\t"
     " cmp    %%o2, %%o3\n\t"
     " bne    %%xcc, 1b\n\t"
     "  nop\n\t"
     " add    %1, %%o2, %0\n\t"
     : "=r" (rv)
     : "r" (add_value), "r" (dest)
     : "memory", "o2", "o3");
 #else
   __asm__ volatile(
     "1: \n\t"
     " ld     [%2], %%o2\n\t"
     " add    %1, %%o2, %%o3\n\t"
     " cas    [%2], %%o2, %%o3\n\t"
     " cmp    %%o2, %%o3\n\t"
     " bne    1b\n\t"
     "  nop\n\t"
     " add    %1, %%o2, %0\n\t"
     : "=r" (rv)
     : "r" (add_value), "r" (dest)
     : "memory", "o2", "o3");
 #endif // _LP64
   return rv;
 }
 inline void*    Atomic::add_ptr(intptr_t add_value, volatile void*     dest) {
   return (void*)add_ptr((intptr_t)add_value, (volatile intptr_t*)dest);
 }
 inline jint     Atomic::xchg    (jint     exchange_value, volatile jint*     dest) {
   intptr_t rv = exchange_value;
   __asm__ volatile(
     " swap   [%2],%1\n\t"
     : "=r" (rv)
     : "0" (exchange_value) /* we use same register as for return value */, "r" (dest)
     : "memory");
   return rv;
 }
 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {
   intptr_t rv = exchange_value;
 #ifdef _LP64
   __asm__ volatile(
     "1:\n\t"
     " mov    %1, %%o3\n\t"
     " ldx    [%2], %%o2\n\t"
     " casx   [%2], %%o2, %%o3\n\t"
     " cmp    %%o2, %%o3\n\t"
     " bne    %%xcc, 1b\n\t"
     "  nop\n\t"
     " mov    %%o2, %0\n\t"
     : "=r" (rv)
     : "r" (exchange_value), "r" (dest)
     : "memory", "o2", "o3");
 #else
   __asm__ volatile(
     "swap    [%2],%1\n\t"
     : "=r" (rv)
     : "0" (exchange_value) /* we use same register as for return value */, "r" (dest)
     : "memory");
 #endif // _LP64
   return rv;
 }
 inline void*    Atomic::xchg_ptr(void*    exchange_value, volatile void*     dest) {
   return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest);
 }
 inline jint     Atomic::cmpxchg    (jint     exchange_value, volatile jint*     dest, jint     compare_value) {
   jint rv;
   __asm__ volatile(
     " cas    [%2], %3, %0"
     : "=r" (rv)
     : "0" (exchange_value), "r" (dest), "r" (compare_value)
     : "memory");
   return rv;
 }
 inline jlong    Atomic::cmpxchg    (jlong    exchange_value, volatile jlong*    dest, jlong    compare_value) {
 #ifdef _LP64
   jlong rv;
   __asm__ volatile(
     " casx   [%2], %3, %0"
     : "=r" (rv)
     : "0" (exchange_value), "r" (dest), "r" (compare_value)
     : "memory");
   return rv;
 #else
   volatile jlong_accessor evl, cvl, rv;
   evl.long_value = exchange_value;
   cvl.long_value = compare_value;
   __asm__ volatile(
     " sllx   %2, 32, %2\n\t"
     " srl    %3, 0,  %3\n\t"
     " or     %2, %3, %2\n\t"
     " sllx   %5, 32, %5\n\t"
     " srl    %6, 0,  %6\n\t"
     " or     %5, %6, %5\n\t"
     " casx   [%4], %5, %2\n\t"
     " srl    %2, 0, %1\n\t"
     " srlx   %2, 32, %0\n\t"
     : "=r" (rv.words[0]), "=r" (rv.words[1])
     : "r"  (evl.words[0]), "r" (evl.words[1]), "r" (dest), "r" (cvl.words[0]), "r" (cvl.words[1])
     : "memory");
   return rv.long_value;
 #endif
 }
 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) {
   intptr_t rv;
 #ifdef _LP64
   __asm__ volatile(
     " casx    [%2], %3, %0"
     : "=r" (rv)
     : "0" (exchange_value), "r" (dest), "r" (compare_value)
     : "memory");
 #else
   __asm__ volatile(
     " cas     [%2], %3, %0"
     : "=r" (rv)
     : "0" (exchange_value), "r" (dest), "r" (compare_value)
     : "memory");
 #endif // _LP64
   return rv;
 }
 inline void*    Atomic::cmpxchg_ptr(void*    exchange_value, volatile void*     dest, void*    compare_value) {
   return (void*)cmpxchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest, (intptr_t)compare_value);
 }
 #endif // OS_CPU_LINUX_SPARC_VM_ATOMIC_LINUX_SPARC_INLINE_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

src/os_cpu/linux_sparc/vm/atomic_linux_sparc.inline.hpp@7f77d17d0f13 (annotated)

src/os_cpu/linux_sparc/vm/atomic_linux_sparc.inline.hpp