Subversion Repositories HelenOS

Rev

Rev 1705 | Rev 1787 | 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 
 
1705 cejka 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 
 
92 
void arch_pre_smp_init(void)
93 
{
94 
}
95 
 
96 
void arch_post_smp_init(void)
97 
{
98 
}
919 jermar 99 
 
100 
/** Enter userspace and never return. */
1078 jermar 101 
void userspace(uspace_arg_t *kernel_uarg)
919 jermar 102 
{
103 
    psr_t psr;
104 
    rsc_t rsc;
105 
 
106 
    psr.value = psr_read();
107 
    psr.cpl = PL_USER;
108 
    psr.i = true;               /* start with interrupts enabled */
109 
    psr.ic = true;
110 
    psr.ri = 0;             /* start with instruction #0 */
993 jermar 111 
    psr.bn = 1;             /* start in bank 0 */
919 jermar 112 
 
113 
    __asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));
114 
    rsc.loadrs = 0;
115 
    rsc.be = false;
116 
    rsc.pl = PL_USER;
117 
    rsc.mode = 3;               /* eager mode */
118 
 
1780 jermar 119 
    switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
120 
                ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),
121 
                ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE,
122 
                (uintptr_t) kernel_uarg->uspace_uarg,
1078 jermar 123 
                psr.value, rsc.value);
919 jermar 124 
 
125 
    while (1) {
126 
        ;
127 
    }
128 
}
1121 jermar 129 
 
130 
/** Set thread-local-storage pointer.
131 
 *
132 
 * We use r13 (a.k.a. tp) for this purpose.
133 
 */
1780 jermar 134 
unative_t sys_tls_set(unative_t addr)
1121 jermar 135 
{
136 
        return 0;
137 
}
1474 palkovsky 138 
 
139 
/** Acquire console back for kernel
140 
 *
141 
 */
142 
void arch_grab_console(void)
143 
{
1548 vana 144 
    kbd_release=kbd_uspace;
145 
    kbd_uspace=0;
1474 palkovsky 146 
}
147 
/** Return console to userspace
148 
 *
149 
 */
150 
void arch_release_console(void)
151 
{
1548 vana 152 
    kbd_uspace=kbd_release;
1474 palkovsky 153 
}
1702 cejka 154 
 
155 
 /** @}
156 
 */
157