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| Rev | Author | Line No. | Line |
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| 153 | jermar | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2005 Jakub Jermar |
| 153 | jermar | 3 | * All rights reserved. |
| 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 | |||
| 1888 | jermar | 29 | /** @addtogroup ia64 |
| 1702 | cejka | 30 | * @{ |
| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 1888 | jermar | 35 | #ifndef KERN_ia64_BARRIER_H_ |
| 36 | #define KERN_ia64_BARRIER_H_ |
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| 153 | jermar | 37 | |
| 154 | jermar | 38 | /* |
| 39 | * TODO: Implement true IA-64 memory barriers for macros below. |
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| 40 | */ |
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| 432 | jermar | 41 | #define CS_ENTER_BARRIER() memory_barrier() |
| 42 | #define CS_LEAVE_BARRIER() memory_barrier() |
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| 153 | jermar | 43 | |
| 2082 | decky | 44 | #define memory_barrier() asm volatile ("mf\n" ::: "memory") |
| 432 | jermar | 45 | #define read_barrier() memory_barrier() |
| 46 | #define write_barrier() memory_barrier() |
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| 177 | jermar | 47 | |
| 4055 | trochtova | 48 | #define srlz_i() \ |
| 49 | asm volatile (";; srlz.i ;;\n" ::: "memory") |
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| 50 | #define srlz_d() \ |
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| 51 | asm volatile (";; srlz.d\n" ::: "memory") |
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| 431 | jermar | 52 | |
| 4055 | trochtova | 53 | #define fc_i(a) \ |
| 54 | asm volatile ("fc.i %0\n" :: "r" ((a)) : "memory") |
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| 55 | #define sync_i() \ |
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| 56 | asm volatile (";; sync.i\n" ::: "memory") |
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| 57 | |||
| 58 | #define smc_coherence(a) \ |
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| 59 | { \ |
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| 60 | fc_i((a)); \ |
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| 61 | sync_i(); \ |
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| 62 | srlz_i(); \ |
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| 63 | } |
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| 64 | |||
| 65 | #define FC_INVAL_MIN 32 |
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| 66 | #define smc_coherence_block(a, l) \ |
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| 67 | { \ |
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| 68 | unsigned long i; \ |
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| 69 | for (i = 0; i < (l); i += FC_INVAL_MIN) \ |
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| 70 | fc_i((void *)(a) + i); \ |
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| 71 | sync_i(); \ |
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| 72 | srlz_i(); \ |
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| 73 | } |
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| 74 | |||
| 153 | jermar | 75 | #endif |
| 1702 | cejka | 76 | |
| 1888 | jermar | 77 | /** @} |
| 1702 | cejka | 78 | */ |