Subversion Repositories HelenOS

Rev

Rev 1888 | Rev 1942 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
36 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
 
1888 jermar 29
/** @addtogroup ia64
1702 cejka 30
 * @{
31
 */
32
/** @file
33
 */
34
 
78 jermar 35
#include <arch.h>
36
#include <arch/ski/ski.h>
435 jermar 37
#include <arch/drivers/it.h>
470 jermar 38
#include <arch/interrupt.h>
39
#include <arch/barrier.h>
919 jermar 40
#include <arch/asm.h>
41
#include <arch/register.h>
470 jermar 42
#include <arch/types.h>
919 jermar 43
#include <arch/context.h>
962 jermar 44
#include <arch/stack.h>
919 jermar 45
#include <arch/mm/page.h>
46
#include <mm/as.h>
47
#include <config.h>
48
#include <userspace.h>
519 vana 49
#include <console/console.h>
1078 jermar 50
#include <proc/uarg.h>
1121 jermar 51
#include <syscall/syscall.h>
519 vana 52
 
1548 vana 53
static int kbd_release=0;
54
 
1223 jermar 55
void arch_pre_main(void)
56
{
57
    /* Setup usermode init tasks. */
1601 jermar 58
    init.cnt = 8;
1223 jermar 59
    init.tasks[0].addr = INIT0_ADDRESS;
60
    init.tasks[0].size = INIT0_SIZE;
1495 jermar 61
    init.tasks[1].addr = INIT0_ADDRESS + 0x400000;
62
    init.tasks[1].size = INIT0_SIZE;
63
    init.tasks[2].addr = INIT0_ADDRESS + 0x800000;
64
    init.tasks[2].size = INIT0_SIZE;
65
    init.tasks[3].addr = INIT0_ADDRESS + 0xc00000;
66
    init.tasks[3].size = INIT0_SIZE;
67
    init.tasks[4].addr = INIT0_ADDRESS + 0x1000000;
68
    init.tasks[4].size = INIT0_SIZE;
1541 jermar 69
    init.tasks[5].addr = INIT0_ADDRESS + 0x1400000;
70
    init.tasks[5].size = INIT0_SIZE;
1601 jermar 71
    init.tasks[6].addr = INIT0_ADDRESS + 0x1800000;
72
    init.tasks[6].size = INIT0_SIZE;
73
    init.tasks[7].addr = INIT0_ADDRESS + 0x1c00000;
74
    init.tasks[7].size = INIT0_SIZE;
1223 jermar 75
}
76
 
78 jermar 77
void arch_pre_mm_init(void)
78
{
470 jermar 79
    /* Set Interruption Vector Address (i.e. location of interruption vector table). */
1780 jermar 80
    iva_write((uintptr_t) &ivt);
470 jermar 81
    srlz_d();
82
 
102 jermar 83
    ski_init_console();
1223 jermar 84
    it_init(); 
78 jermar 85
}
86
 
87
void arch_post_mm_init(void)
88
{
1507 vana 89
    ski_set_console_sysinfo();
78 jermar 90
}
503 jermar 91
 
1901 jermar 92
void arch_post_cpu_init(void)
93
{
94
}
95
 
503 jermar 96
void arch_pre_smp_init(void)
97
{
98
}
99
 
100
void arch_post_smp_init(void)
101
{
102
}
919 jermar 103
 
104
/** Enter userspace and never return. */
1078 jermar 105
void userspace(uspace_arg_t *kernel_uarg)
919 jermar 106
{
107
    psr_t psr;
108
    rsc_t rsc;
109
 
110
    psr.value = psr_read();
111
    psr.cpl = PL_USER;
112
    psr.i = true;               /* start with interrupts enabled */
113
    psr.ic = true;
114
    psr.ri = 0;             /* start with instruction #0 */
993 jermar 115
    psr.bn = 1;             /* start in bank 0 */
919 jermar 116
 
117
    __asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));
118
    rsc.loadrs = 0;
119
    rsc.be = false;
120
    rsc.pl = PL_USER;
121
    rsc.mode = 3;               /* eager mode */
122
 
1780 jermar 123
    switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
124
                ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),
125
                ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE,
126
                (uintptr_t) kernel_uarg->uspace_uarg,
1078 jermar 127
                psr.value, rsc.value);
919 jermar 128
 
129
    while (1) {
130
        ;
131
    }
132
}
1121 jermar 133
 
134
/** Set thread-local-storage pointer.
135
 *
136
 * We use r13 (a.k.a. tp) for this purpose.
137
 */
1780 jermar 138
unative_t sys_tls_set(unative_t addr)
1121 jermar 139
{
140
        return 0;
141
}
1474 palkovsky 142
 
143
/** Acquire console back for kernel
144
 *
145
 */
146
void arch_grab_console(void)
147
{
1548 vana 148
    kbd_release=kbd_uspace;
149
    kbd_uspace=0;
1474 palkovsky 150
}
151
/** Return console to userspace
152
 *
153
 */
154
void arch_release_console(void)
155
{
1548 vana 156
    kbd_uspace=kbd_release;
1474 palkovsky 157
}
1702 cejka 158
 
1888 jermar 159
/** @}
1702 cejka 160
 */