71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
/*
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Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef NDB_PREFETCH_H
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#define NDB_PREFETCH_H
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#ifdef HAVE_SUN_PREFETCH_H
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#include <sun_prefetch.h>
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#if (defined(__SUNPRO_C) && __SUNPRO_C >= 0x590) \
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|| (defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x590)
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/* Universal sun_prefetch* macros available with Sun Studio 5.9 */
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#define USE_SUN_PREFETCH
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#elif defined(__sparc)
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/* Use sparc_prefetch* macros with older Sun Studio on sparc */
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#define USE_SPARC_PREFETCH
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#endif
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#endif
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#ifdef HAVE_SUN_PREFETCH_H
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#pragma optimize("", off)
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#endif
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static inline
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void NDB_PREFETCH_READ(void* addr)
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{
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#if (__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR > 10)
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__builtin_prefetch(addr, 0, 3);
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#elif defined(USE_SUN_PREFETCH)
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sun_prefetch_read_once(addr);
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#elif defined(USE_SPARC_PREFETCH)
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sparc_prefetch_read_once(addr);
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#else
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(void)addr;
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#endif
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}
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static inline
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void NDB_PREFETCH_WRITE(void* addr)
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{
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#if (__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR > 10)
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__builtin_prefetch(addr, 1, 3);
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#elif defined(USE_SUN_PREFETCH)
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sun_prefetch_write_once(addr);
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#elif defined(USE_SPARC_PREFETCH)
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sparc_prefetch_write_once(addr);
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#else
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(void)addr;
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#endif
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}
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#ifdef HAVE_SUN_PREFETCH_H
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#pragma optimize("", on)
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#endif
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#endif
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