1 /*
2 * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2012, 2014 SAP SE. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
63 // Load|Load,
64 // Store|Load
65 //
66
67 #define inlasm_sync() __asm__ __volatile__ ("sync" : : : "memory");
68 #define inlasm_lwsync() __asm__ __volatile__ ("lwsync" : : : "memory");
69 #define inlasm_eieio() __asm__ __volatile__ ("eieio" : : : "memory");
70 #define inlasm_isync() __asm__ __volatile__ ("isync" : : : "memory");
71 // Use twi-isync for load_acquire (faster than lwsync).
72 #define inlasm_acquire_reg(X) __asm__ __volatile__ ("twi 0,%0,0\n isync\n" : : "r" (X) : "memory");
73
74 inline void OrderAccess::loadload() { inlasm_lwsync(); }
75 inline void OrderAccess::storestore() { inlasm_lwsync(); }
76 inline void OrderAccess::loadstore() { inlasm_lwsync(); }
77 inline void OrderAccess::storeload() { inlasm_sync(); }
78
79 inline void OrderAccess::acquire() { inlasm_lwsync(); }
80 inline void OrderAccess::release() { inlasm_lwsync(); }
81 inline void OrderAccess::fence() { inlasm_sync(); }
82
83 template<> inline jbyte OrderAccess::specialized_load_acquire<jbyte> (volatile jbyte* p) { register jbyte t = load(p); inlasm_acquire_reg(t); return t; }
84 template<> inline jshort OrderAccess::specialized_load_acquire<jshort>(volatile jshort* p) { register jshort t = load(p); inlasm_acquire_reg(t); return t; }
85 template<> inline jint OrderAccess::specialized_load_acquire<jint> (volatile jint* p) { register jint t = load(p); inlasm_acquire_reg(t); return t; }
86 template<> inline jlong OrderAccess::specialized_load_acquire<jlong> (volatile jlong* p) { register jlong t = load(p); inlasm_acquire_reg(t); return t; }
87
88 #undef inlasm_sync
89 #undef inlasm_lwsync
90 #undef inlasm_eieio
91 #undef inlasm_isync
92 #undef inlasm_acquire_reg
93
94 #define VM_HAS_GENERALIZED_ORDER_ACCESS 1
95
96 #endif // OS_CPU_LINUX_PPC_VM_ORDERACCESS_LINUX_PPC_INLINE_HPP
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1 /*
2 * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2012, 2014 SAP SE. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
63 // Load|Load,
64 // Store|Load
65 //
66
67 #define inlasm_sync() __asm__ __volatile__ ("sync" : : : "memory");
68 #define inlasm_lwsync() __asm__ __volatile__ ("lwsync" : : : "memory");
69 #define inlasm_eieio() __asm__ __volatile__ ("eieio" : : : "memory");
70 #define inlasm_isync() __asm__ __volatile__ ("isync" : : : "memory");
71 // Use twi-isync for load_acquire (faster than lwsync).
72 #define inlasm_acquire_reg(X) __asm__ __volatile__ ("twi 0,%0,0\n isync\n" : : "r" (X) : "memory");
73
74 inline void OrderAccess::loadload() { inlasm_lwsync(); }
75 inline void OrderAccess::storestore() { inlasm_lwsync(); }
76 inline void OrderAccess::loadstore() { inlasm_lwsync(); }
77 inline void OrderAccess::storeload() { inlasm_sync(); }
78
79 inline void OrderAccess::acquire() { inlasm_lwsync(); }
80 inline void OrderAccess::release() { inlasm_lwsync(); }
81 inline void OrderAccess::fence() { inlasm_sync(); }
82
83 template<> inline jbyte OrderAccess::specialized_load_acquire<jbyte> (const volatile jbyte* p) { register jbyte t = load(p); inlasm_acquire_reg(t); return t; }
84 template<> inline jshort OrderAccess::specialized_load_acquire<jshort>(const volatile jshort* p) { register jshort t = load(p); inlasm_acquire_reg(t); return t; }
85 template<> inline jint OrderAccess::specialized_load_acquire<jint> (const volatile jint* p) { register jint t = load(p); inlasm_acquire_reg(t); return t; }
86 template<> inline jlong OrderAccess::specialized_load_acquire<jlong> (const volatile jlong* p) { register jlong t = load(p); inlasm_acquire_reg(t); return t; }
87
88 #undef inlasm_sync
89 #undef inlasm_lwsync
90 #undef inlasm_eieio
91 #undef inlasm_isync
92 #undef inlasm_acquire_reg
93
94 #define VM_HAS_GENERALIZED_ORDER_ACCESS 1
95
96 #endif // OS_CPU_LINUX_PPC_VM_ORDERACCESS_LINUX_PPC_INLINE_HPP
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