Subversion Repositories HelenOS

Rev

Rev 4024 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
4024 jermar 1
/*
2
 * Copyright (c) 2009 Jakub 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
 
29
/** @file
30
 * @ingroup libsparc64
31
 */
32
 
33
#ifndef LIBC_sparc64_DDI_H_
34
#define LIBC_sparc64_DDI_H_
35
 
36
#include <sys/types.h>
37
#include <libarch/types.h>
38
 
39
static inline memory_barrier(void)
40
{
41
    asm volatile ("membar #LoadLoad | #StoreStore\n" ::: "memory");
42
}
43
 
44
static inline void pio_write_8(ioport8_t *port, uint8_t v)
45
{
46
    *port = v;
47
    memory_barrier();
48
}
49
 
50
static inline void pio_write_16(ioport16_t *port, uint16_t v)
51
{
52
    *port = v;
53
    memory_barrier();
54
}
55
 
56
static inline void pio_write_32(ioport32_t *port, uint32_t v)
57
{
58
    *port = v;
59
    memory_barrier();
60
}
61
 
62
static inline uint8_t pio_read_8(ioport8_t *port)
63
{
64
    uint8_t rv;
65
 
66
    rv = *port;
67
    memory_barrier();
68
 
69
    return rv;
70
}
71
 
72
static inline uint16_t pio_read_16(ioport16_t *port)
73
{
74
    uint16_t rv;
75
 
76
    rv = *port;
77
    memory_barrier();
78
 
79
    return rv;
80
}
81
 
82
static inline uint32_t pio_read_32(ioport32_t *port)
83
{
84
    uint32_t rv;
85
 
86
    rv = *port;
87
    memory_barrier();
88
 
89
    return rv;
90
}
91
 
92
#endif