Subversion Repositories HelenOS

Rev

Rev 1901 | Rev 1919 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
424 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 
 
1769 jermar 29 
/** @addtogroup sparc64
1702 cejka 30 
 * @{
31 
 */
32 
/** @file
33 
 */
34 
 
424 jermar 35 
#include <arch.h>
669 jermar 36 
#include <debug.h>
1860 jermar 37 
#include <config.h>
630 jermar 38 
#include <arch/trap/trap.h>
586 jermar 39 
#include <arch/console.h>
669 jermar 40 
#include <proc/thread.h>
1474 palkovsky 41 
#include <console/console.h>
1790 jermar 42 
#include <arch/boot/boot.h>
1792 jermar 43 
#include <arch/arch.h>
1881 jermar 44 
#include <arch/asm.h>
1860 jermar 45 
#include <arch/mm/page.h>
46 
#include <arch/stack.h>
1895 jermar 47 
#include <genarch/ofw/ofw_tree.h>
1860 jermar 48 
#include <userspace.h>
424 jermar 49 
 
1790 jermar 50 
bootinfo_t bootinfo;
51 
 
1864 jermar 52 
void arch_pre_main(void)
53 
{
1894 jermar 54 
    /* Copy init task info. */
1864 jermar 55 
    init.cnt = bootinfo.taskmap.count;
56 
 
57 
    uint32_t i;
58 
 
59 
    for (i = 0; i < bootinfo.taskmap.count; i++) {
60 
        init.tasks[i].addr = PA2KA(bootinfo.taskmap.tasks[i].addr);
61 
        init.tasks[i].size = bootinfo.taskmap.tasks[i].size;
62 
    }
1894 jermar 63 
 
64 
    /* Copy boot allocations info. */
65 
    ballocs.base = bootinfo.ballocs.base;
66 
    ballocs.size = bootinfo.ballocs.size;
1895 jermar 67 
 
68 
    ofw_tree_init(bootinfo.ofw_root);
1864 jermar 69 
}
70 
 
424 jermar 71 
void arch_pre_mm_init(void)
72 
{
1903 jermar 73 
    if (config.cpu_active == 1)
74 
        trap_init();
424 jermar 75 
}
76 
 
77 
void arch_post_mm_init(void)
78 
{
1903 jermar 79 
    if (config.cpu_active == 1)
80 
        standalone_sparc64_console_init();
424 jermar 81 
}
82 
 
1901 jermar 83 
void arch_post_cpu_init(void)
84 
{
85 
}
86 
 
503 jermar 87 
void arch_pre_smp_init(void)
424 jermar 88 
{
89 
}
90 
 
503 jermar 91 
void arch_post_smp_init(void)
92 
{
893 jermar 93 
    thread_t *t;
94 
 
1903 jermar 95 
    if (config.cpu_active == 1) {
96 
        /*
97 
             * Create thread that polls keyboard.
98 
             */
99 
        t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll");
100 
        if (!t)
101 
            panic("cannot create kkbdpoll\n");
102 
        thread_ready(t);
103 
    }
503 jermar 104 
}
105 
 
1881 jermar 106 
/** Calibrate delay loop.
107 
 *
108 
 * On sparc64, we implement delay() by waiting for the TICK register to
109 
 * reach a pre-computed value, as opposed to performing some pre-computed
110 
 * amount of instructions of known duration. We set the delay_loop_const
111 
 * to 1 in order to neutralize the multiplication done by delay().
112 
 */
424 jermar 113 
void calibrate_delay_loop(void)
114 
{
1881 jermar 115 
    CPU->delay_loop_const = 1;
424 jermar 116 
}
1474 palkovsky 117 
 
1881 jermar 118 
/** Wait several microseconds.
119 
 *
120 
 * We assume that interrupts are already disabled.
121 
 *
122 
 * @param t Microseconds to wait.
123 
 */
124 
void asm_delay_loop(const uint32_t usec)
125 
{
126 
    uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t) CPU->arch.clock_frequency / 1000000;
127 
 
128 
    while (tick_read() < stop)
129 
        ;
130 
}
131 
 
1860 jermar 132 
/** Switch to userspace. */
133 
void userspace(uspace_arg_t *kernel_uarg)
134 
{
135 
    switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
136 
        ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE
1879 jermar 137 
        - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),
1864 jermar 138 
        (uintptr_t) kernel_uarg->uspace_uarg);
1860 jermar 139 
 
140 
    for (;;)
141 
        ;
142 
    /* not reached */
143 
}
144 
 
1769 jermar 145 
/** @}
1702 cejka 146 
 */