source: mainline/kernel/arch/arm32/src/arm32.c@ 8ef40329

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 8ef40329 was 8ef40329, checked in by Jiri Svoboda <jiri@…>, 15 years ago

No need to include machine-specific header.

  • Property mode set to 100644
File size: 4.4 KB
Line 
1/*
2 * Copyright (c) 2007 Michal Kebrt
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
33 * @brief ARM32 architecture specific functions.
34 */
35
36#include <arch.h>
37#include <config.h>
38#include <genarch/fb/fb.h>
39#include <genarch/fb/visuals.h>
40#include <sysinfo/sysinfo.h>
41#include <console/console.h>
42#include <ddi/irq.h>
43#include <print.h>
44#include <config.h>
45#include <interrupt.h>
46#include <arch/regutils.h>
47#include <arch/machine_func.h>
48#include <userspace.h>
49#include <macros.h>
50#include <str.h>
51#include <arch/ras.h>
52
53/** Performs arm32-specific initialization before main_bsp() is called. */
54void arch_pre_main(void *entry __attribute__((unused)), bootinfo_t *bootinfo)
55{
56 init.cnt = min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS);
57
58 size_t i;
59 for (i = 0; i < init.cnt; i++) {
60 init.tasks[i].addr = (uintptr_t) bootinfo->tasks[i].addr;
61 init.tasks[i].size = bootinfo->tasks[i].size;
62 str_cpy(init.tasks[i].name, CONFIG_TASK_NAME_BUFLEN,
63 bootinfo->tasks[i].name);
64 }
65}
66
67/** Performs arm32 specific initialization before mm is initialized. */
68void arch_pre_mm_init(void)
69{
70 /* It is not assumed by default */
71 interrupts_disable();
72}
73
74/** Performs arm32 specific initialization afterr mm is initialized. */
75void arch_post_mm_init(void)
76{
77 machine_init();
78
79 /* Initialize exception dispatch table */
80 exception_init();
81 interrupt_init();
82
83 /* Initialize Restartable Atomic Sequences support. */
84 ras_init();
85
86 machine_output_init();
87}
88
89/** Performs arm32 specific tasks needed after cpu is initialized.
90 *
91 * Currently the function is empty.
92 */
93void arch_post_cpu_init(void)
94{
95}
96
97
98/** Performs arm32 specific tasks needed before the multiprocessing is
99 * initialized.
100 *
101 * Currently the function is empty because SMP is not supported.
102 */
103void arch_pre_smp_init(void)
104{
105}
106
107
108/** Performs arm32 specific tasks needed after the multiprocessing is
109 * initialized.
110 *
111 * Currently the function is empty because SMP is not supported.
112 */
113void arch_post_smp_init(void)
114{
115 machine_input_init();
116}
117
118
119/** Performs arm32 specific tasks needed before the new task is run. */
120void before_task_runs_arch(void)
121{
122}
123
124
125/** Performs arm32 specific tasks needed before the new thread is scheduled.
126 *
127 * It sets supervisor_sp.
128 */
129void before_thread_runs_arch(void)
130{
131 uint8_t *stck;
132
133 stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];
134 supervisor_sp = (uintptr_t) stck;
135}
136
137/** Performs arm32 specific tasks before a thread stops running.
138 *
139 * Currently the function is empty.
140 */
141void after_thread_ran_arch(void)
142{
143}
144
145/** Halts CPU. */
146void cpu_halt(void)
147{
148 while (true)
149 machine_cpu_halt();
150}
151
152/** Reboot. */
153void arch_reboot()
154{
155 /* not implemented */
156 while (true);
157}
158
159/** Construct function pointer
160 *
161 * @param fptr function pointer structure
162 * @param addr function address
163 * @param caller calling function address
164 *
165 * @return address of the function pointer
166 *
167 */
168void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
169{
170 return addr;
171}
172
173void irq_initialize_arch(irq_t *irq)
174{
175 (void) irq;
176}
177
178/** @}
179 */
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