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153 | jermar | 1 | /* |
2 | * Copyright (C) 2005 Jakub Jermar |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
29 | #ifndef __ia64_BARRIER_H__ |
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30 | #define __ia64_BARRIER_H__ |
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31 | |||
154 | jermar | 32 | /* |
33 | * TODO: Implement true IA-64 memory barriers for macros below. |
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34 | */ |
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432 | jermar | 35 | #define CS_ENTER_BARRIER() memory_barrier() |
36 | #define CS_LEAVE_BARRIER() memory_barrier() |
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153 | jermar | 37 | |
432 | jermar | 38 | #define memory_barrier() __asm__ volatile ("mf\n" ::: "memory") |
39 | #define read_barrier() memory_barrier() |
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40 | #define write_barrier() memory_barrier() |
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177 | jermar | 41 | |
431 | jermar | 42 | #define srlz_i() __asm__ volatile (";; srlz.i ;;\n" ::: "memory") |
432 | jermar | 43 | #define srlz_d() __asm__ volatile (";; srlz.d\n" ::: "memory") |
431 | jermar | 44 | |
153 | jermar | 45 | #endif |