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Rev | Author | Line No. | Line |
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418 | 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 __sparc64_BARRIER_H__ |
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30 | #define __sparc64_BARRIER_H__ |
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31 | |||
32 | /* |
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33 | * TODO: Implement true SPARC V9 memory barriers for macros below. |
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34 | */ |
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35 | #define CS_ENTER_BARRIER() __asm__ volatile ("" ::: "memory") |
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36 | #define CS_LEAVE_BARRIER() __asm__ volatile ("" ::: "memory") |
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37 | |||
38 | #define memory_barrier() |
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39 | #define read_barrier() |
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40 | #define write_barrier() |
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41 | |||
760 | jermar | 42 | /** Flush Instruction Memory instruction. */ |
613 | jermar | 43 | static inline void flush(void) |
44 | { |
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45 | /* |
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760 | jermar | 46 | * The FLUSH instruction takes address parameter. |
47 | * As such, it may trap if the address is not found in DTLB. |
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48 | * However, JPS1 implementations are free to ignore the trap. |
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613 | jermar | 49 | */ |
760 | jermar | 50 | __asm__ volatile ("flush %sp\n"); |
613 | jermar | 51 | } |
569 | jermar | 52 | |
760 | jermar | 53 | /** Memory Barrier instruction. */ |
758 | jermar | 54 | static inline void membar(void) |
55 | { |
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56 | __asm__ volatile ("membar #Sync\n"); |
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57 | } |
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58 | |||
418 | jermar | 59 | #endif |