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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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 *
5
 * Redistribution and use in source and binary forms, with or without
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
6
 * modification, are permitted provided that the following conditions
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 * are met:
7
 * are met:
8
 *
8
 *
9
 * - Redistributions of source code must retain the above copyright
9
 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
10
 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
11
 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
12
 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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
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.
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 *   derived from this software without specific prior written permission.
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 *
16
 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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
18
 * 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
25
 * (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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29
/** @addtogroup main
29
/** @addtogroup main
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 * @{
30
 * @{
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 */
31
 */
32
 
32
 
33
/**
33
/**
34
 * @file
34
 * @file
35
 * @brief   Kernel initialization thread.
35
 * @brief   Kernel initialization thread.
36
 *
36
 *
37
 * This file contains kinit kernel thread which carries out
37
 * This file contains kinit kernel thread which carries out
38
 * 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>
49
#include <proc/thread.h>
49
#include <proc/thread.h>
50
#include <proc/program.h>
50
#include <proc/program.h>
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#include <panic.h>
51
#include <panic.h>
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#include <func.h>
52
#include <func.h>
53
#include <cpu.h>
53
#include <cpu.h>
54
#include <arch/asm.h>
54
#include <arch/asm.h>
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#include <mm/page.h>
55
#include <mm/page.h>
56
#include <arch/mm/page.h>
56
#include <arch/mm/page.h>
57
#include <mm/as.h>
57
#include <mm/as.h>
58
#include <mm/frame.h>
58
#include <mm/frame.h>
59
#include <print.h>
59
#include <print.h>
60
#include <memstr.h>
60
#include <memstr.h>
61
#include <console/console.h>
61
#include <console/console.h>
62
#include <interrupt.h>
62
#include <interrupt.h>
63
#include <console/kconsole.h>
63
#include <console/kconsole.h>
64
#include <security/cap.h>
64
#include <security/cap.h>
65
#include <lib/rd.h>
65
#include <lib/rd.h>
66
#include <ipc/ipc.h>
66
#include <ipc/ipc.h>
67
 
67
 
68
#ifdef CONFIG_SMP
68
#ifdef CONFIG_SMP
69
#include <smp/smp.h>
69
#include <smp/smp.h>
70
#endif /* CONFIG_SMP */
70
#endif /* CONFIG_SMP */
71
 
71
 
72
#include <synch/waitq.h>
72
#include <synch/waitq.h>
73
#include <synch/spinlock.h>
73
#include <synch/spinlock.h>
74
 
74
 
75
/** Kernel initialization thread.
75
/** Kernel initialization thread.
76
 *
76
 *
77
 * kinit takes care of higher level kernel
77
 * kinit takes care of higher level kernel
78
 * initialization (i.e. thread creation,
78
 * initialization (i.e. thread creation,
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 * userspace initialization etc.).
79
 * userspace initialization etc.).
80
 *
80
 *
81
 * @param arg Not used.
81
 * @param arg Not used.
82
 */
82
 */
83
void kinit(void *arg)
83
void kinit(void *arg)
84
{
84
{
85
 
85
 
86
#if defined(CONFIG_SMP) || defined(CONFIG_KCONSOLE)
86
#if defined(CONFIG_SMP) || defined(CONFIG_KCONSOLE)
87
    thread_t *thread;
87
    thread_t *thread;
88
#endif
88
#endif
89
 
89
 
90
    /*
90
    /*
91
     * Detach kinit as nobody will call thread_join_timeout() on it.
91
     * Detach kinit as nobody will call thread_join_timeout() on it.
92
     */
92
     */
93
    thread_detach(THREAD);
93
    thread_detach(THREAD);
94
 
94
 
95
    interrupts_disable();
95
    interrupts_disable();
96
 
96
 
97
#ifdef CONFIG_SMP           
97
#ifdef CONFIG_SMP           
98
    if (config.cpu_count > 1) {
98
    if (config.cpu_count > 1) {
99
        waitq_initialize(&ap_completion_wq);
99
        waitq_initialize(&ap_completion_wq);
100
        /*
100
        /*
101
         * Create the kmp thread and wait for its completion.
101
         * Create the kmp thread and wait for its completion.
102
         * cpu1 through cpuN-1 will come up consecutively and
102
         * cpu1 through cpuN-1 will come up consecutively and
103
         * not mess together with kcpulb threads.
103
         * not mess together with kcpulb threads.
104
         * Just a beautification.
104
         * Just a beautification.
105
         */
105
         */
106
        thread = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED, "kmp", true);
106
        thread = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED, "kmp", true);
107
        if (thread != NULL) {
107
        if (thread != NULL) {
108
            spinlock_lock(&thread->lock);
108
            spinlock_lock(&thread->lock);
109
            thread->cpu = &cpus[0];
109
            thread->cpu = &cpus[0];
110
            spinlock_unlock(&thread->lock);
110
            spinlock_unlock(&thread->lock);
111
            thread_ready(thread);
111
            thread_ready(thread);
112
        } else
112
        } else
113
            panic("Unable to create kmp thread\n");
113
            panic("Unable to create kmp thread\n");
114
        thread_join(thread);
114
        thread_join(thread);
115
        thread_detach(thread);
115
        thread_detach(thread);
116
    }
116
    }
117
#endif /* CONFIG_SMP */
117
#endif /* CONFIG_SMP */
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
            thread = thread_create(kcpulb, NULL, TASK, THREAD_FLAG_WIRED, "kcpulb", true);
127
            thread = thread_create(kcpulb, NULL, TASK, THREAD_FLAG_WIRED, "kcpulb", true);
128
            if (thread != NULL) {
128
            if (thread != NULL) {
129
                spinlock_lock(&thread->lock);
129
                spinlock_lock(&thread->lock);
130
                thread->cpu = &cpus[i];
130
                thread->cpu = &cpus[i];
131
                spinlock_unlock(&thread->lock);
131
                spinlock_unlock(&thread->lock);
132
                thread_ready(thread);
132
                thread_ready(thread);
133
            } else
133
            } else
134
                printf("Unable to create kcpulb thread for cpu" PRIc "\n", i);
134
                printf("Unable to create kcpulb thread for cpu" PRIc "\n", i);
135
 
135
 
136
        }
136
        }
137
    }
137
    }
138
#endif /* CONFIG_SMP */
138
#endif /* CONFIG_SMP */
139
   
139
   
140
    /*
140
    /*
141
     * At this point SMP, if present, is configured.
141
     * At this point SMP, if present, is configured.
142
     */
142
     */
143
    arch_post_smp_init();
143
    arch_post_smp_init();
144
 
144
 
145
#ifdef CONFIG_KCONSOLE
145
#ifdef CONFIG_KCONSOLE
146
    if (stdin) {
146
    if (stdin) {
147
        /*
147
        /*
148
         * Create kernel console.
148
         * Create kernel console.
149
         */
149
         */
150
        thread = thread_create(kconsole_thread, NULL, TASK, 0, "kconsole", false);
150
        thread = thread_create(kconsole_thread, NULL, TASK, 0, "kconsole", false);
151
        if (thread != NULL)
151
        if (thread != NULL)
152
            thread_ready(thread);
152
            thread_ready(thread);
153
        else
153
        else
154
            printf("Unable to create kconsole thread\n");
154
            printf("Unable to create kconsole thread\n");
155
    }
155
    }
156
#endif /* CONFIG_KCONSOLE */
156
#endif /* CONFIG_KCONSOLE */
157
   
157
   
158
    interrupts_enable();
158
    interrupts_enable();
159
    /*
159
    /*
160
     * Create user tasks, load RAM disk images.
160
     * Create user tasks, load RAM disk images.
161
     */
161
     */
162
    count_t i;
162
    count_t i;
163
    program_t programs[CONFIG_INIT_TASKS];
163
    program_t programs[CONFIG_INIT_TASKS];
164
   
164
   
165
    for (i = 0; i < init.cnt; i++) {
165
    for (i = 0; i < init.cnt; i++) {
166
        if (init.tasks[i].addr % FRAME_SIZE) {
166
        if (init.tasks[i].addr % FRAME_SIZE) {
167
            printf("init[%" PRIc "].addr is not frame aligned\n", i);
167
            printf("init[%" PRIc "].addr is not frame aligned\n", i);
168
            continue;
168
            continue;
169
        }
169
        }
170
       
170
       
171
        int rc = program_create_from_image((void *) init.tasks[i].addr,
171
        int rc = program_create_from_image((void *) init.tasks[i].addr,
172
            "init-bin", &programs[i]);
172
            "init-bin", &programs[i]);
173
       
173
       
174
        if ((rc == 0) && (programs[i].task != NULL)) {
174
        if ((rc == 0) && (programs[i].task != NULL)) {
175
            /*
175
            /*
176
             * Set capabilities to init userspace tasks.
176
             * Set capabilities to init userspace tasks.
177
             */
177
             */
178
            cap_set(programs[i].task, CAP_CAP | CAP_MEM_MANAGER |
178
            cap_set(programs[i].task, CAP_CAP | CAP_MEM_MANAGER |
179
                CAP_IO_MANAGER | CAP_PREEMPT_CONTROL | CAP_IRQ_REG);
179
                CAP_IO_MANAGER | CAP_PREEMPT_CONTROL | CAP_IRQ_REG);
180
           
180
           
181
            if (!ipc_phone_0)
181
            if (!ipc_phone_0)
182
                ipc_phone_0 = &programs[i].task->answerbox;
182
                ipc_phone_0 = &programs[i].task->answerbox;
183
        } else if (rc == 0) {
183
        } else if (rc == 0) {
184
            /* It was the program loader and was registered */
184
            /* It was the program loader and was registered */
185
        } else {
185
        } else {
186
            /* RAM disk image */
186
            /* RAM disk image */
187
            int rd = init_rd((rd_header_t *) init.tasks[i].addr, init.tasks[i].size);
187
            int rd = init_rd((rd_header_t *) init.tasks[i].addr, init.tasks[i].size);
188
           
188
           
189
            if (rd != RE_OK)
189
            if (rd != RE_OK)
190
                printf("Init binary %" PRIc " not used (error %d)\n", i, rd);
190
                printf("Init binary %" PRIc " not used (error %d)\n", i, rd);
191
        }
191
        }
192
    }
192
    }
193
   
193
 
194
    /*
194
    /*
195
     * Run user tasks with reasonable delays
195
     * Run user tasks with reasonable delays
196
     */
196
     */
197
    for (i = 0; i < init.cnt; i++) {
197
    for (i = 0; i < init.cnt; i++) {
198
        if (programs[i].task != NULL) {
198
        if (programs[i].task != NULL) {
199
            thread_usleep(50000);
199
            thread_usleep(50000);
200
            program_ready(&programs[i]);
200
            program_ready(&programs[i]);
201
        }
201
        }
202
    }
202
    }
-
 
203
 
203
#ifdef CONFIG_KCONSOLE
204
#ifdef CONFIG_KCONSOLE
204
    if (!stdin) {
205
    if (!stdin) {
205
        printf("kinit: No stdin\nKernel alive: ");
206
        printf("kinit: No stdin\nKernel alive: ");
206
       
207
       
207
        uint64_t i = 0;
208
        uint64_t i = 0;
208
        while (1) {
209
        while (1) {
209
            printf(PRIu64 " ", i);
210
            printf(PRIu64 " ", i);
210
            thread_sleep(1);
211
            thread_sleep(1);
211
            i++;
212
            i++;
212
        }
213
        }
213
    }
214
    }
214
#endif /* CONFIG_KCONSOLE */
215
#endif /* CONFIG_KCONSOLE */
215
}
216
}
216
 
217
 
217
/** @}
218
/** @}
218
 */
219
 */
219
 
220