Subversion Repositories HelenOS-historic

Rev

Rev 319 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
1 jermar 1
/*
319 jermar 2
 * Copyright (C) 2003-2004 Jakub Jermar
1 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 __MIPS_ASM_H__
30
#define __MIPS_ASM_H__
31
 
173 jermar 32
#include <arch/types.h>
313 palkovsky 33
#include <typedefs.h>
173 jermar 34
#include <config.h>
35
 
1 jermar 36
 
326 palkovsky 37
static inline void cpu_sleep(void)
38
{
39
    /* Most of the simulators do not support */
40
/*  __asm__ volatile ("wait"); */
41
}
42
 
173 jermar 43
/** Return base address of current stack
44
 *
45
 * Return the base address of the current stack.
46
 * The stack is assumed to be STACK_SIZE bytes long.
180 jermar 47
 * The stack must start on page boundary.
173 jermar 48
 */
49
static inline __address get_stack_base(void)
50
{
51
    __address v;
52
 
53
    __asm__ volatile ("and %0, $29, %1\n" : "=r" (v) : "r" (~(STACK_SIZE-1)));
54
 
55
    return v;
56
}
57
 
313 palkovsky 58
extern void cpu_halt(void);
59
extern void asm_delay_loop(__u32 t);
60
extern void userspace_asm(__address ustack);
195 vana 61
 
1 jermar 62
#endif