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/*
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/*
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 * Copyright (c) 2001-2004 Jakub Jermar
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 * Copyright (c) 2001-2004 Jakub Jermar
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 * All rights reserved.
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 * All rights reserved.
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 *
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * modification, are permitted provided that the following conditions
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 * are met:
7
 * are met:
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 *
8
 *
9
 * - Redistributions of source code must retain the above copyright
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *   derived from this software without specific prior written permission.
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 *
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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 */
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/** @addtogroup main
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/** @addtogroup main
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 * @{
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 * @{
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 */
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 */
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32
 
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/**
33
/**
34
 * @file
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 * @file
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 * @brief   Kernel initialization thread.
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 * @brief   Kernel initialization thread.
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 *
36
 *
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 * This file contains kinit kernel thread which carries out
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 * This file contains kinit kernel thread which carries out
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 * high level system initialization.
38
 * high level system initialization.
39
 *
39
 *
40
 * This file is responsible for finishing SMP configuration
40
 * This file is responsible for finishing SMP configuration
41
 * and creation of userspace init tasks.
41
 * and creation of userspace init tasks.
42
 */
42
 */
43
 
43
 
44
#include <main/kinit.h>
44
#include <main/kinit.h>
45
#include <config.h>
45
#include <config.h>
46
#include <arch.h>
46
#include <arch.h>
47
#include <proc/scheduler.h>
47
#include <proc/scheduler.h>
48
#include <proc/task.h>
48
#include <proc/task.h>
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#include <proc/thread.h>
49
#include <proc/thread.h>
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#include <panic.h>
50
#include <panic.h>
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#include <func.h>
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#include <func.h>
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#include <cpu.h>
52
#include <cpu.h>
53
#include <arch/asm.h>
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#include <arch/asm.h>
54
#include <mm/page.h>
54
#include <mm/page.h>
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#include <arch/mm/page.h>
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#include <arch/mm/page.h>
56
#include <mm/as.h>
56
#include <mm/as.h>
57
#include <mm/frame.h>
57
#include <mm/frame.h>
58
#include <print.h>
58
#include <print.h>
59
#include <memstr.h>
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#include <memstr.h>
60
#include <console/console.h>
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#include <console/console.h>
61
#include <interrupt.h>
61
#include <interrupt.h>
62
#include <console/kconsole.h>
62
#include <console/kconsole.h>
63
#include <security/cap.h>
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#include <security/cap.h>
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#include <lib/rd.h>
64
#include <lib/rd.h>
65
#include <ipc/ipc.h>
65
#include <ipc/ipc.h>
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66
 
67
#ifdef CONFIG_SMP
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#ifdef CONFIG_SMP
68
#include <smp/smp.h>
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#include <smp/smp.h>
69
#endif /* CONFIG_SMP */
69
#endif /* CONFIG_SMP */
70
 
70
 
71
#include <synch/waitq.h>
71
#include <synch/waitq.h>
72
#include <synch/spinlock.h>
72
#include <synch/spinlock.h>
73
 
73
 
74
/** Kernel initialization thread.
74
/** Kernel initialization thread.
75
 *
75
 *
76
 * kinit takes care of higher level kernel
76
 * kinit takes care of higher level kernel
77
 * initialization (i.e. thread creation,
77
 * initialization (i.e. thread creation,
78
 * userspace initialization etc.).
78
 * userspace initialization etc.).
79
 *
79
 *
80
 * @param arg Not used.
80
 * @param arg Not used.
81
 */
81
 */
82
void kinit(void *arg)
82
void kinit(void *arg)
83
{
83
{
84
    thread_t *t;
84
    thread_t *t;
85
 
85
 
86
    /*
86
    /*
87
     * Detach kinit as nobody will call thread_join_timeout() on it.
87
     * Detach kinit as nobody will call thread_join_timeout() on it.
88
     */
88
     */
89
    thread_detach(THREAD);
89
    thread_detach(THREAD);
90
 
90
 
91
    interrupts_disable();
91
    interrupts_disable();
92
 
92
 
93
#ifdef CONFIG_SMP           
93
#ifdef CONFIG_SMP           
94
    if (config.cpu_count > 1) {
94
    if (config.cpu_count > 1) {
95
        waitq_initialize(&ap_completion_wq);
95
        waitq_initialize(&ap_completion_wq);
96
        /*
96
        /*
97
         * Create the kmp thread and wait for its completion.
97
         * Create the kmp thread and wait for its completion.
98
         * cpu1 through cpuN-1 will come up consecutively and
98
         * cpu1 through cpuN-1 will come up consecutively and
99
         * not mess together with kcpulb threads.
99
         * not mess together with kcpulb threads.
100
         * Just a beautification.
100
         * Just a beautification.
101
         */
101
         */
102
        if ((t = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED,
102
        if ((t = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED,
103
            "kmp", true))) {
103
            "kmp", true))) {
104
            spinlock_lock(&t->lock);
104
            spinlock_lock(&t->lock);
105
            t->cpu = &cpus[0];
105
            t->cpu = &cpus[0];
106
            spinlock_unlock(&t->lock);
106
            spinlock_unlock(&t->lock);
107
            thread_ready(t);
107
            thread_ready(t);
108
        } else
108
        } else
109
            panic("thread_create/kmp\n");
109
            panic("thread_create/kmp\n");
110
        thread_join(t);
110
        thread_join(t);
111
        thread_detach(t);
111
        thread_detach(t);
112
    }
112
    }
113
#endif /* CONFIG_SMP */
113
#endif /* CONFIG_SMP */
114
    /*
114
    /*
115
     * Now that all CPUs are up, we can report what we've found.
115
     * Now that all CPUs are up, we can report what we've found.
116
     */
116
     */
117
    cpu_list();
117
    cpu_list();
118
 
118
 
119
#ifdef CONFIG_SMP
119
#ifdef CONFIG_SMP
120
    if (config.cpu_count > 1) {
120
    if (config.cpu_count > 1) {
121
        count_t i;
121
        count_t i;
122
       
122
       
123
        /*
123
        /*
124
         * For each CPU, create its load balancing thread.
124
         * For each CPU, create its load balancing thread.
125
         */
125
         */
126
        for (i = 0; i < config.cpu_count; i++) {
126
        for (i = 0; i < config.cpu_count; i++) {
127
 
127
 
128
            if ((t = thread_create(kcpulb, NULL, TASK,
128
            if ((t = thread_create(kcpulb, NULL, TASK,
129
                THREAD_FLAG_WIRED, "kcpulb", true))) {
129
                THREAD_FLAG_WIRED, "kcpulb", true))) {
130
                spinlock_lock(&t->lock);           
130
                spinlock_lock(&t->lock);           
131
                t->cpu = &cpus[i];
131
                t->cpu = &cpus[i];
132
                spinlock_unlock(&t->lock);
132
                spinlock_unlock(&t->lock);
133
                thread_ready(t);
133
                thread_ready(t);
134
            } else
134
            } else
135
                panic("thread_create/kcpulb\n");
135
                panic("thread_create/kcpulb\n");
136
 
136
 
137
        }
137
        }
138
    }
138
    }
139
#endif /* CONFIG_SMP */
139
#endif /* CONFIG_SMP */
140
 
140
 
141
    /*
141
    /*
142
     * At this point SMP, if present, is configured.
142
     * At this point SMP, if present, is configured.
143
     */
143
     */
144
    arch_post_smp_init();
144
    arch_post_smp_init();
145
 
145
 
146
    /*
146
    /*
147
     * Create kernel console.
147
     * Create kernel console.
148
     */
148
     */
149
    t = thread_create(kconsole, (void *) "kconsole", TASK, 0, "kconsole", false);
149
    t = thread_create(kconsole, (void *) "kconsole", TASK, 0, "kconsole",
-
 
150
        false);
150
    if (t)
151
    if (t)
151
        thread_ready(t);
152
        thread_ready(t);
152
    else
153
    else
153
        panic("thread_create/kconsole\n");
154
        panic("thread_create/kconsole\n");
154
 
155
 
155
    interrupts_enable();
156
    interrupts_enable();
156
   
157
   
157
    /*
158
    /*
158
     * Create user tasks, load RAM disk images.
159
     * Create user tasks, load RAM disk images.
159
     */
160
     */
160
    count_t i;
161
    count_t i;
161
    thread_t *threads[CONFIG_INIT_TASKS];
162
    thread_t *threads[CONFIG_INIT_TASKS];
162
   
163
   
163
    for (i = 0; i < init.cnt; i++) {
164
    for (i = 0; i < init.cnt; i++) {
164
        if (init.tasks[i].addr % FRAME_SIZE) {
165
        if (init.tasks[i].addr % FRAME_SIZE) {
165
            printf("init[%" PRIc "].addr is not frame aligned", i);
166
            printf("init[%" PRIc "].addr is not frame aligned", i);
166
            continue;
167
            continue;
167
        }
168
        }
168
 
169
 
169
        int rc = task_parse_initial((void *) init.tasks[i].addr,
170
        int rc = task_parse_initial((void *) init.tasks[i].addr,
170
            "uspace", &threads[i]);
171
            "uspace", &threads[i]);
171
 
172
 
172
        if (rc == 0 && threads[i] != NULL) {
173
        if (rc == 0 && threads[i] != NULL) {
173
            /*
174
            /*
174
             * Set capabilities to init userspace tasks.
175
             * Set capabilities to init userspace tasks.
175
             */
176
             */
176
            cap_set(threads[i]->task, CAP_CAP | CAP_MEM_MANAGER |
177
            cap_set(threads[i]->task, CAP_CAP | CAP_MEM_MANAGER |
177
                CAP_IO_MANAGER | CAP_PREEMPT_CONTROL | CAP_IRQ_REG);
178
                CAP_IO_MANAGER | CAP_PREEMPT_CONTROL | CAP_IRQ_REG);
178
 
179
 
179
           
180
           
180
            if (!ipc_phone_0)
181
            if (!ipc_phone_0)
181
                ipc_phone_0 = &threads[i]->task->answerbox;
182
                ipc_phone_0 = &threads[i]->task->answerbox;
182
        } else if (rc == 0) {
183
        } else if (rc == 0) {
183
            /* It was the program loader and was registered */
184
            /* It was the program loader and was registered */
184
        } else {
185
        } else {
185
            /* RAM disk image */
186
            /* RAM disk image */
186
            int rd = init_rd((rd_header_t *) init.tasks[i].addr,
187
            int rd = init_rd((rd_header_t *) init.tasks[i].addr,
187
                init.tasks[i].size);
188
                init.tasks[i].size);
188
           
189
           
189
            if (rd != RE_OK)
190
            if (rd != RE_OK)
190
                printf("Init binary %" PRIc " not used, error code %d.\n", i, rd);
191
                printf("Init binary %" PRIc " not used, error "
-
 
192
                    "code %d.\n", i, rd);
191
        }
193
        }
192
    }
194
    }
193
   
195
   
194
    /*
196
    /*
195
     * Run user tasks with reasonable delays
197
     * Run user tasks with reasonable delays
196
     */
198
     */
197
    for (i = 0; i < init.cnt; i++) {
199
    for (i = 0; i < init.cnt; i++) {
198
        if (threads[i] != NULL) {
200
        if (threads[i] != NULL) {
199
            thread_usleep(50000);
201
            thread_usleep(50000);
200
            thread_ready(threads[i]);
202
            thread_ready(threads[i]);
201
        }
203
        }
202
    }
204
    }
203
 
205
 
204
    if (!stdin) {
206
    if (!stdin) {
205
        while (1) {
207
        while (1) {
206
            thread_sleep(1);
208
            thread_sleep(1);
207
            printf("kinit... ");
209
            printf("kinit... ");
208
        }
210
        }
209
    }
211
    }
210
}
212
}
211
 
213
 
212
/** @}
214
/** @}
213
 */
215
 */
214
 
216