diff -r fd16c54261b3 -r 489c9b5090e2 hotspot/src/os_cpu/solaris_sparc/vm/atomic_solaris_sparc.inline.hpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hotspot/src/os_cpu/solaris_sparc/vm/atomic_solaris_sparc.inline.hpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,342 @@ +/* + * Copyright 1999-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +// 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); } + +#ifdef _GNU_SOURCE + +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 %0, %%o2, %%o3\n\t" + " casx [%2], %%o2, %%o3\n\t" + " cmp %%o2, %%o3\n\t" + " bne %%xcc, 1b\n\t" + " nop\n\t" + " add %0, %%o2, %0\n\t" + : "=r" (rv) + : "r" (add_value), "r" (dest) + : "memory", "o2", "o3"); +#else //_LP64 + __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 //_LP64 + __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 //_LP64 + assert(VM_Version::v9_instructions_work(), "cas only supported on v9"); + 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 //_LP64 +} + +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 //_LP64 + __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); +} + +#else // _GNU_SOURCE + +#if defined(COMPILER2) || defined(_LP64) + +// This is the interface to the atomic instructions in solaris_sparc.il. +// It's very messy because we need to support v8 and these instructions +// are illegal there. When sparc v8 is dropped, we can drop out lots of +// this code. Also compiler2 does not support v8 so the conditional code +// omits the instruction set check. + +extern "C" jint _Atomic_swap32(jint exchange_value, volatile jint* dest); +extern "C" intptr_t _Atomic_swap64(intptr_t exchange_value, volatile intptr_t* dest); + +extern "C" jint _Atomic_cas32(jint exchange_value, volatile jint* dest, jint compare_value); +extern "C" intptr_t _Atomic_cas64(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value); +extern "C" jlong _Atomic_casl (jlong exchange_value, volatile jlong* dest, jlong compare_value); + +extern "C" jint _Atomic_add32(jint inc, volatile jint* dest); +extern "C" intptr_t _Atomic_add64(intptr_t add_value, volatile intptr_t* dest); + + +inline jint Atomic::add (jint add_value, volatile jint* dest) { + return _Atomic_add32(add_value, dest); +} + +inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { +#ifdef _LP64 + return _Atomic_add64(add_value, dest); +#else //_LP64 + return _Atomic_add32(add_value, dest); +#endif // _LP64 +} + +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) { + return _Atomic_swap32(exchange_value, dest); +} + +inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { +#ifdef _LP64 + return _Atomic_swap64(exchange_value, dest); +#else // _LP64 + return _Atomic_swap32(exchange_value, dest); +#endif // _LP64 +} + +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) { + return _Atomic_cas32(exchange_value, dest, compare_value); +} + +inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { +#ifdef _LP64 + // Return 64 bit value in %o0 + return _Atomic_cas64((intptr_t)exchange_value, (intptr_t *)dest, (intptr_t)compare_value); +#else // _LP64 + assert (VM_Version::v9_instructions_work(), "only supported on v9"); + // Return 64 bit value in %o0,%o1 by hand + return _Atomic_casl(exchange_value, dest, compare_value); +#endif // _LP64 +} + +inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { +#ifdef _LP64 + return _Atomic_cas64(exchange_value, dest, compare_value); +#else // _LP64 + return _Atomic_cas32(exchange_value, dest, compare_value); +#endif // _LP64 +} + +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); +} + + +#else // _LP64 || COMPILER2 + + +// 32-bit compiler1 only + +inline jint Atomic::add (jint add_value, volatile jint* dest) { + return (*os::atomic_add_func)(add_value, dest); +} + +inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { + return (intptr_t)add((jint)add_value, (volatile jint*)dest); +} + +inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { + return (void*)add((jint)add_value, (volatile jint*)dest); +} + + +inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { + return (*os::atomic_xchg_func)(exchange_value, dest); +} + +inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { + return (intptr_t)xchg((jint)exchange_value, (volatile jint*)dest); +} + +inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { + return (void*)xchg((jint)exchange_value, (volatile jint*)dest); +} + + +inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { + return (*os::atomic_cmpxchg_func)(exchange_value, dest, compare_value); +} + +inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { + return (*os::atomic_cmpxchg_long_func)(exchange_value, dest, compare_value); +} + +inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { + return (intptr_t)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); +} + +inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { + return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); +} + +#endif // _LP64 || COMPILER2 + +#endif // _GNU_SOURCE