Subversion Repositories HelenOS

Rev

Rev 1894 | Rev 1899 | 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>
664 jermar 40 
#include <arch/drivers/tick.h>
669 jermar 41 
#include <proc/thread.h>
1474 palkovsky 42 
#include <console/console.h>
1790 jermar 43 
#include <arch/boot/boot.h>
1792 jermar 44 
#include <arch/arch.h>
1881 jermar 45 
#include <arch/asm.h>
1860 jermar 46 
#include <arch/mm/page.h>
47 
#include <arch/stack.h>
1895 jermar 48 
#include <genarch/ofw/ofw_tree.h>
1860 jermar 49 
#include <userspace.h>
424 jermar 50 
 
1790 jermar 51 
bootinfo_t bootinfo;
52 
 
1864 jermar 53 
void arch_pre_main(void)
54 
{
1894 jermar 55 
    /* Copy init task info. */
1864 jermar 56 
    init.cnt = bootinfo.taskmap.count;
57 
 
58 
    uint32_t i;
59 
 
60 
    for (i = 0; i < bootinfo.taskmap.count; i++) {
61 
        init.tasks[i].addr = PA2KA(bootinfo.taskmap.tasks[i].addr);
62 
        init.tasks[i].size = bootinfo.taskmap.tasks[i].size;
63 
    }
1894 jermar 64 
 
65 
    /* Copy boot allocations info. */
66 
    ballocs.base = bootinfo.ballocs.base;
67 
    ballocs.size = bootinfo.ballocs.size;
1895 jermar 68 
 
69 
    ofw_tree_init(bootinfo.ofw_root);
1864 jermar 70 
}
71 
 
424 jermar 72 
void arch_pre_mm_init(void)
73 
{
627 jermar 74 
    trap_init();
664 jermar 75 
    tick_init();
424 jermar 76 
}
77 
 
78 
void arch_post_mm_init(void)
79 
{
893 jermar 80 
    standalone_sparc64_console_init();
424 jermar 81 
}
82 
 
503 jermar 83 
void arch_pre_smp_init(void)
424 jermar 84 
{
85 
}
86 
 
503 jermar 87 
void arch_post_smp_init(void)
88 
{
893 jermar 89 
    thread_t *t;
90 
 
91 
    /*
895 jermar 92 
         * Create thread that polls keyboard.
93 
         */
1062 jermar 94 
    t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll");
895 jermar 95 
    if (!t)
96 
        panic("cannot create kkbdpoll\n");
97 
    thread_ready(t);
503 jermar 98 
}
99 
 
1881 jermar 100 
/** Calibrate delay loop.
101 
 *
102 
 * On sparc64, we implement delay() by waiting for the TICK register to
103 
 * reach a pre-computed value, as opposed to performing some pre-computed
104 
 * amount of instructions of known duration. We set the delay_loop_const
105 
 * to 1 in order to neutralize the multiplication done by delay().
106 
 */
424 jermar 107 
void calibrate_delay_loop(void)
108 
{
1881 jermar 109 
    CPU->delay_loop_const = 1;
424 jermar 110 
}
1474 palkovsky 111 
 
1881 jermar 112 
/** Wait several microseconds.
113 
 *
114 
 * We assume that interrupts are already disabled.
115 
 *
116 
 * @param t Microseconds to wait.
117 
 */
118 
void asm_delay_loop(const uint32_t usec)
119 
{
120 
    uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t) CPU->arch.clock_frequency / 1000000;
121 
 
122 
    while (tick_read() < stop)
123 
        ;
124 
}
125 
 
1860 jermar 126 
/** Switch to userspace. */
127 
void userspace(uspace_arg_t *kernel_uarg)
128 
{
129 
    switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
130 
        ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE
1879 jermar 131 
        - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),
1864 jermar 132 
        (uintptr_t) kernel_uarg->uspace_uarg);
1860 jermar 133 
 
134 
    for (;;)
135 
        ;
136 
    /* not reached */
137 
}
138 
 
1769 jermar 139 
/** @}
1702 cejka 140 
 */