Subversion Repositories HelenOS

Rev

Rev 2927 | Rev 4343 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
2128 jermar 1 
/*
2465 jermar 2 
 * Copyright (c) 2007 Michal Kebrt
2128 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 
/** @addtogroup arm32
30 
 * @{
31 
 */
32 
/** @file
2465 jermar 33 
 *  @brief ARM32 architecture specific functions.
2128 jermar 34 
 */
35 
 
36 
#include <arch.h>
2465 jermar 37 
#include <arch/boot.h>
38 
#include <config.h>
39 
#include <arch/console.h>
40 
#include <ddi/device.h>
41 
#include <genarch/fb/fb.h>
42 
#include <genarch/fb/visuals.h>
43 
#include <ddi/irq.h>
44 
#include <arch/debug/print.h>
45 
#include <print.h>
46 
#include <config.h>
47 
#include <interrupt.h>
48 
#include <arch/regutils.h>
49 
#include <arch/machine.h>
50 
#include <userspace.h>
2128 jermar 51 
 
2465 jermar 52 
/** Information about loaded tasks. */
53 
bootinfo_t bootinfo;
54 
 
55 
/** Performs arm32 specific initialization before main_bsp() is called. */
2128 jermar 56 
void arch_pre_main(void)
57 
{
2745 decky 58 
    unsigned int i;
2465 jermar 59 
 
60 
    init.cnt = bootinfo.cnt;
61 
 
62 
    for (i = 0; i < bootinfo.cnt; ++i) {
63 
        init.tasks[i].addr = bootinfo.tasks[i].addr;
64 
        init.tasks[i].size = bootinfo.tasks[i].size;
65 
    }
66 
 
2128 jermar 67 
}
68 
 
2465 jermar 69 
/** Performs arm32 specific initialization before mm is initialized. */
2128 jermar 70 
void arch_pre_mm_init(void)
71 
{
2465 jermar 72 
    /* It is not assumed by default */
73 
    interrupts_disable();
2128 jermar 74 
}
75 
 
2465 jermar 76 
/** Performs arm32 specific initialization afterr mm is initialized. */
2128 jermar 77 
void arch_post_mm_init(void)
78 
{
2465 jermar 79 
    machine_hw_map_init();
80 
 
81 
    /* Initialize exception dispatch table */
82 
    exception_init();
83 
 
84 
    interrupt_init();
85 
 
86 
    console_init(device_assign_devno());
87 
 
88 
#ifdef CONFIG_FB
3674 svoboda 89 
    fb_properties_t prop = {
90 
        .addr = machine_get_fb_address(),
91 
        .offset = 0,
92 
        .x = 640,
93 
        .y = 480,
94 
        .scan = 1920,
95 
        .visual = VISUAL_RGB_8_8_8,
96 
    };
97 
    fb_init(&prop);
2465 jermar 98 
#endif
2128 jermar 99 
}
100 
 
2465 jermar 101 
/** Performs arm32 specific tasks needed after cpu is initialized.
102 
 *
103 
 * Currently the function is empty.
104 
 */
2128 jermar 105 
void arch_post_cpu_init(void)
106 
{
107 
}
108 
 
2465 jermar 109 
 
110 
/** Performs arm32 specific tasks needed before the multiprocessing is
111 
 * initialized.
112 
 *
113 
 * Currently the function is empty because SMP is not supported.
114 
 */
2128 jermar 115 
void arch_pre_smp_init(void)
116 
{
117 
}
118 
 
2465 jermar 119 
 
120 
/** Performs arm32 specific tasks needed after the multiprocessing is
121 
 * initialized.
122 
 *
123 
 * Currently the function is empty because SMP is not supported.
124 
 */
2128 jermar 125 
void arch_post_smp_init(void)
126 
{
127 
}
128 
 
2465 jermar 129 
 
130 
/** Performs arm32 specific tasks needed before the new task is run. */
2128 jermar 131 
void before_task_runs_arch(void)
132 
{
2465 jermar 133 
    tlb_invalidate_all();
2128 jermar 134 
}
135 
 
2465 jermar 136 
 
137 
/** Performs arm32 specific tasks needed before the new thread is scheduled.
138 
 *
139 
 * It sets supervisor_sp.
140 
 */
2128 jermar 141 
void before_thread_runs_arch(void)
142 
{
2465 jermar 143 
    uint8_t *stck;
144 
 
145 
    stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];
146 
    supervisor_sp = (uintptr_t) stck;
2128 jermar 147 
}
148 
 
2465 jermar 149 
/** Performs arm32 specific tasks before a thread stops running.
150 
 *
151 
 * Currently the function is empty.
152 
 */
2128 jermar 153 
void after_thread_ran_arch(void)
154 
{
155 
}
156 
 
2465 jermar 157 
/** Halts CPU. */
158 
void cpu_halt(void)
2227 decky 159 
{
2465 jermar 160 
    machine_cpu_halt();
2227 decky 161 
}
162 
 
2465 jermar 163 
/** Reboot. */
164 
void arch_reboot()
165 
{
166 
    /* not implemented */
167 
    for (;;)
168 
        ;
169 
}
170 
 
2128 jermar 171 
/** @}
172 
 */