Subversion Repositories HelenOS

Rev

Rev 532 | Rev 569 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
418 jermar 1
/*
2
 * Copyright (C) 2005 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
#ifndef __sparc64_ASM_H__
30
#define __sparc64_ASM_H__
31
 
32
#include <arch/types.h>
33
#include <config.h>
34
 
35
/** Enable interrupts.
36
 *
37
 * Enable interrupts and return previous
38
 * value of IPL.
39
 *
40
 * @return Old interrupt priority level.
41
 */
42
static inline ipl_t interrupts_enable(void) {
43
}
44
 
45
/** Disable interrupts.
46
 *
47
 * Disable interrupts and return previous
48
 * value of IPL.
49
 *
50
 * @return Old interrupt priority level.
51
 */
52
static inline ipl_t interrupts_disable(void) {
53
}
54
 
55
/** Restore interrupt priority level.
56
 *
57
 * Restore IPL.
58
 *
59
 * @param ipl Saved interrupt priority level.
60
 */
61
static inline void interrupts_restore(ipl_t ipl) {
62
}
63
 
64
/** Return interrupt priority level.
65
 *
66
 * Return IPL.
67
 *
68
 * @return Current interrupt priority level.
69
 */
70
static inline ipl_t interrupts_read(void) {
71
}
72
 
73
/** Return base address of current stack.
74
 *
75
 * Return the base address of the current stack.
76
 * The stack is assumed to be STACK_SIZE bytes long.
77
 * The stack must start on page boundary.
78
 */
79
static inline __address get_stack_base(void)
80
{
426 jermar 81
    __address v;
82
 
83
    __asm__ volatile ("and %%o6, %1, %0\n" : "=r" (v) : "r" (~(STACK_SIZE-1)));
84
 
85
    return v;
418 jermar 86
}
87
 
529 jermar 88
/** Read Trap Base Address register.
89
 *
90
 * @return Current value in TBA.
91
 */
92
static inline __u64 tba_read(void)
93
{
94
    __u64 v;
95
 
96
    __asm__ volatile ("rdpr %%tba, %0\n" : "=r" (v));
97
 
98
    return v;
99
}
100
 
101
/** Write Trap Base Address register.
102
 *
103
 * @param New value of TBA.
104
 */
105
static inline void tba_write(__u64 v)
106
{
107
    __asm__ volatile ("wrpr %0, %1, %%tba\n" : : "r" (v), "i" (0));
108
}
109
 
110
 
418 jermar 111
void cpu_halt(void);
112
void cpu_sleep(void);
113
void asm_delay_loop(__u32 t);
114
 
115
#endif