Subversion Repositories HelenOS

Rev

Rev 3022 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
153 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2005 Jakub Jermar
153 jermar 3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 *
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
13
 *   documentation and/or other materials provided with the distribution.
14
 * - The name of the author may not be used to endorse or promote products
15
 *   derived from this software without specific prior written permission.
16
 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
28
 
1888 jermar 29
/** @addtogroup ia64   
1702 cejka 30
 * @{
31
 */
32
/** @file
33
 */
34
 
1888 jermar 35
#ifndef KERN_ia64_BARRIER_H_
36
#define KERN_ia64_BARRIER_H_
153 jermar 37
 
154 jermar 38
/*
39
 * TODO: Implement true IA-64 memory barriers for macros below.
40
 */
432 jermar 41
#define CS_ENTER_BARRIER()  memory_barrier()
42
#define CS_LEAVE_BARRIER()  memory_barrier()
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()
177 jermar 47
 
4055 trochtova 48
#define srlz_i()        \
49
    asm volatile (";; srlz.i ;;\n" ::: "memory")
50
#define srlz_d()        \
51
    asm volatile (";; srlz.d\n" ::: "memory")
431 jermar 52
 
4055 trochtova 53
#define fc_i(a)         \
54
    asm volatile ("fc.i %0\n" :: "r" ((a)) : "memory")  
55
#define sync_i()        \
56
    asm volatile (";; sync.i\n" ::: "memory")
57
 
58
#define smc_coherence(a)    \
59
{               \
60
    fc_i((a));      \
61
    sync_i();       \
62
    srlz_i();       \
63
}
64
 
65
#define FC_INVAL_MIN        32
66
#define smc_coherence_block(a, l)       \
67
{                       \
68
    unsigned long i;            \
69
    for (i = 0; i < (l); i += FC_INVAL_MIN) \
70
        fc_i((void *)(a) + i);      \
71
    sync_i();               \
72
    srlz_i();               \
73
}
74
 
153 jermar 75
#endif
1702 cejka 76
 
1888 jermar 77
/** @}
1702 cejka 78
 */