1 /* 2 * Copyright (c) 2003, 2007, 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 #if defined(COMPILER2) || defined(_LP64) 26 27 // For Sun Studio inplementation is in solaris_sparc.il 28 // For gcc inplementation is just below 29 extern "C" void _Prefetch_read (void *loc, intx interval); 30 extern "C" void _Prefetch_write(void *loc, intx interval); 31 32 inline void Prefetch::read(void *loc, intx interval) { 33 _Prefetch_read(loc, interval); 34 } 35 36 inline void Prefetch::write(void *loc, intx interval) { 37 _Prefetch_write(loc, interval); 38 } 39 40 #ifdef _GNU_SOURCE 41 extern "C" { 42 inline void _Prefetch_read (void *loc, intx interval) { 43 __asm__ volatile 44 ("prefetch [%0+%1], 0" : : "r" (loc), "r" (interval) : "memory" ); 45 } 46 inline void _Prefetch_write(void *loc, intx interval) { 47 __asm__ volatile 48 ("prefetch [%0+%1], 2" : : "r" (loc), "r" (interval) : "memory" ); 49 } 50 } 51 #endif // _GNU_SOURCE 52 53 #else // defined(COMPILER2) || defined(_LP64) 54 55 inline void Prefetch::read (void *loc, intx interval) {} 56 inline void Prefetch::write(void *loc, intx interval) {} 57 58 #endif // defined(COMPILER2) || defined(_LP64)