--- /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