WebSVN – HelenOS – Diff – /trunk/kernel/generic/src/main/kinit.c


/*
 * Copyright (C) 2001-2004 Jakub Jermar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/** @addtogroup main
 * @{
 */
 
/**
 * @file
 * @brief   Kernel initialization thread.
 *
 * This file contains kinit kernel thread which carries out
 * high level system initialization.
 *
 * This file is responsible for finishing SMP configuration
 * and creation of userspace init tasks.
 */
 
#include <main/kinit.h>
#include <config.h>
#include <arch.h>
#include <proc/scheduler.h>
#include <proc/task.h>
#include <proc/thread.h>
#include <panic.h>
#include <func.h>
#include <cpu.h>
#include <arch/asm.h>
#include <mm/page.h>
#include <arch/mm/page.h>
#include <mm/as.h>
#include <mm/frame.h>
#include <print.h>
#include <memstr.h>
#include <console/console.h>
#include <interrupt.h>
#include <console/kconsole.h>
#include <security/cap.h>
#include <lib/rd.h>
 
#ifdef CONFIG_SMP
#include <smp/smp.h>
#endif /* CONFIG_SMP */
 
#include <synch/waitq.h>
#include <synch/spinlock.h>
 
#ifdef CONFIG_TEST
#include <test.h>
#endif /* CONFIG_TEST */
 
/** Kernel initialization thread.
 *
 * kinit takes care of higher level kernel
 * initialization (i.e. thread creation,
 * userspace initialization etc.).
 *
 * @param arg Not used.
 */
void kinit(void *arg)
{
    thread_t *t;
 
    /*
     * Detach kinit as nobody will call thread_join_timeout() on it.
     */
    thread_detach(THREAD);
 
    interrupts_disable();
 
#ifdef CONFIG_SMP           
    if (config.cpu_count > 1) {
        waitq_initialize(&ap_completion_wq);
        /*
         * Create the kmp thread and wait for its completion.
         * cpu1 through cpuN-1 will come up consecutively and
         * not mess together with kcpulb threads.
         * Just a beautification.
         */
        if ((t = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED, "kmp"))) {
            spinlock_lock(&t->lock);
            t->cpu = &cpus[0];
            spinlock_unlock(&t->lock);
            thread_ready(t);
        } else
            panic("thread_create/kmp\n");
        thread_join(t);
        thread_detach(t);
    }
#endif /* CONFIG_SMP */
    /*
     * Now that all CPUs are up, we can report what we've found.
     */
    cpu_list();
 
#ifdef CONFIG_SMP
    if (config.cpu_count > 1) {
        int i;
       
        /*
         * For each CPU, create its load balancing thread.
         */
        for (i = 0; i < config.cpu_count; i++) {
 
            if ((t = thread_create(kcpulb, NULL, TASK, THREAD_FLAG_WIRED, "kcpulb"))) {
                spinlock_lock(&t->lock);           
                t->cpu = &cpus[i];
                spinlock_unlock(&t->lock);
                thread_ready(t);
            } else
                panic("thread_create/kcpulb\n");
 
        }
    }
#endif /* CONFIG_SMP */
 
    /*
     * At this point SMP, if present, is configured.
     */
    arch_post_smp_init();
 
    /*
     * Create kernel console.
     */
    if ((t = thread_create(kconsole, "kconsole", TASK, 0, "kconsole")))
        thread_ready(t);
    else
        panic("thread_create/kconsole\n");
 
    interrupts_enable();
 
#ifdef CONFIG_TEST
    test();
    printf("\nTest finished, please reboot.\n");
#else  /* CONFIG_TEST */
 
    count_t i;
    for (i = 0; i < init.cnt; i++) {
        /*
         * Run user tasks, load RAM disk images.
         */
       
        if (init.tasks[i].addr % FRAME_SIZE) {
            printf("init[%d].addr is not frame aligned", i);
            continue;
        }
 
        task_t *utask = task_run_program((void *) init.tasks[i].addr, "USPACE");
        if (utask) {
            /*
             * Set capabilities to init userspace tasks.
             */
            cap_set(utask, CAP_CAP | CAP_MEM_MANAGER | CAP_IO_MANAGER | CAP_PREEMPT_CONTROL | CAP_IRQ_REG);
           
            if (!ipc_phone_0)
                ipc_phone_0 = &utask->answerbox;
        } else {
            int rd = init_rd((rd_header *) init.tasks[i].addr, init.tasks[i].size);
           
            if (rd != RE_OK)
                printf("Init binary %zd not used.\n", i);
        }
    }
 
 
    if (!stdin) {
        while (1) {
            thread_sleep(1);
            printf("kinit... ");
        }
    }
#endif /* CONFIG_TEST */
 
}
 
/** @}
 */
 

Rev 2002	Rev 2005
1	/*	1	/*
2	* Copyright (C) 2001-2004 Jakub Jermar	2	* Copyright (C) 2001-2004 Jakub Jermar
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
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
7	* 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
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* 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.	15	* derived from this software without specific prior written permission.
16	*	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
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	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	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	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	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.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup main	29	/** @addtogroup main
30	* @{	30	* @{
31	*/	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 <panic.h>	50	#include <panic.h>
51	#include <func.h>	51	#include <func.h>
52	#include <cpu.h>	52	#include <cpu.h>
53	#include <arch/asm.h>	53	#include <arch/asm.h>
54	#include <mm/page.h>	54	#include <mm/page.h>
55	#include <arch/mm/page.h>	55	#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>	59	#include <memstr.h>
60	#include <console/console.h>	60	#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>	63	#include <security/cap.h>
64	#include <lib/rd.h>	64	#include <lib/rd.h>
65		65
66	#ifdef CONFIG_SMP	66	#ifdef CONFIG_SMP
67	#include <smp/smp.h>	67	#include <smp/smp.h>
68	#endif /* CONFIG_SMP */	68	#endif /* CONFIG_SMP */
69		69
70	#include <synch/waitq.h>	70	#include <synch/waitq.h>
71	#include <synch/spinlock.h>	71	#include <synch/spinlock.h>
72		72
73	#ifdef CONFIG_TEST	73	#ifdef CONFIG_TEST
74	#include <test.h>	74	#include <test.h>
75	#endif /* CONFIG_TEST */	75	#endif /* CONFIG_TEST */
76		76
77	/** Kernel initialization thread.	77	/** Kernel initialization thread.
78	*	78	*
79	* kinit takes care of higher level kernel	79	* kinit takes care of higher level kernel
80	* initialization (i.e. thread creation,	80	* initialization (i.e. thread creation,
81	* userspace initialization etc.).	81	* userspace initialization etc.).
82	*	82	*
83	* @param arg Not used.	83	* @param arg Not used.
84	*/	84	*/
85	void kinit(void *arg)	85	void kinit(void *arg)
86	{	86	{
87	thread_t *t;	87	thread_t *t;
88		88
89	/*	89	/*
90	* Detach kinit as nobody will call thread_join_timeout() on it.	90	* Detach kinit as nobody will call thread_join_timeout() on it.
91	*/	91	*/
92	thread_detach(THREAD);	92	thread_detach(THREAD);
93		93
94	interrupts_disable();	94	interrupts_disable();
95		95
96	#ifdef CONFIG_SMP	96	#ifdef CONFIG_SMP
97	if (config.cpu_count > 1) {	97	if (config.cpu_count > 1) {
98	waitq_initialize(&ap_completion_wq);	98	waitq_initialize(&ap_completion_wq);
99	/*	99	/*
100	* Create the kmp thread and wait for its completion.	100	* Create the kmp thread and wait for its completion.
101	* cpu1 through cpuN-1 will come up consecutively and	101	* cpu1 through cpuN-1 will come up consecutively and
102	* not mess together with kcpulb threads.	102	* not mess together with kcpulb threads.
103	* Just a beautification.	103	* Just a beautification.
104	*/	104	*/
105	if ((t = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED, "kmp"))) {	105	if ((t = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED, "kmp"))) {
106	spinlock_lock(&t->lock);	106	spinlock_lock(&t->lock);
107	t->cpu = &cpus[0];	107	t->cpu = &cpus[0];
108	spinlock_unlock(&t->lock);	108	spinlock_unlock(&t->lock);
109	thread_ready(t);	109	thread_ready(t);
110	} else	110	} else
111	panic("thread_create/kmp\n");	111	panic("thread_create/kmp\n");
112	thread_join(t);	112	thread_join(t);
113	thread_detach(t);	113	thread_detach(t);
114	}	114	}
115	#endif /* CONFIG_SMP */	115	#endif /* CONFIG_SMP */
116	/*	116	/*
117	* Now that all CPUs are up, we can report what we've found.	117	* Now that all CPUs are up, we can report what we've found.
118	*/	118	*/
119	cpu_list();	119	cpu_list();
120		120
121	#ifdef CONFIG_SMP	121	#ifdef CONFIG_SMP
122	if (config.cpu_count > 1) {	122	if (config.cpu_count > 1) {
123	int i;	123	int i;
124		124
125	/*	125	/*
126	* For each CPU, create its load balancing thread.	126	* For each CPU, create its load balancing thread.
127	*/	127	*/
128	for (i = 0; i < config.cpu_count; i++) {	128	for (i = 0; i < config.cpu_count; i++) {
129		129
130	if ((t = thread_create(kcpulb, NULL, TASK, THREAD_FLAG_WIRED, "kcpulb"))) {	130	if ((t = thread_create(kcpulb, NULL, TASK, THREAD_FLAG_WIRED, "kcpulb"))) {
131	spinlock_lock(&t->lock);	131	spinlock_lock(&t->lock);
132	t->cpu = &cpus[i];	132	t->cpu = &cpus[i];
133	spinlock_unlock(&t->lock);	133	spinlock_unlock(&t->lock);
134	thread_ready(t);	134	thread_ready(t);
135	} else	135	} else
136	panic("thread_create/kcpulb\n");	136	panic("thread_create/kcpulb\n");
137		137
138	}	138	}
139	}	139	}
140	#endif /* CONFIG_SMP */	140	#endif /* CONFIG_SMP */
141		141
142	/*	142	/*
143	* At this point SMP, if present, is configured.	143	* At this point SMP, if present, is configured.
144	*/	144	*/
145	arch_post_smp_init();	145	arch_post_smp_init();
146		146
147	/*	147	/*
148	* Create kernel console.	148	* Create kernel console.
149	*/	149	*/
150	if ((t = thread_create(kconsole, "kconsole", TASK, 0, "kconsole")))	150	if ((t = thread_create(kconsole, "kconsole", TASK, 0, "kconsole")))
151	thread_ready(t);	151	thread_ready(t);
152	else	152	else
153	panic("thread_create/kconsole\n");	153	panic("thread_create/kconsole\n");
154		154
155	interrupts_enable();	155	interrupts_enable();
156		156
157	#ifdef CONFIG_TEST	157	#ifdef CONFIG_TEST
158	test();	158	test();
159	printf("\nTest finished, please reboot.\n");	159	printf("\nTest finished, please reboot.\n");
160	#else /* CONFIG_TEST */	160	#else /* CONFIG_TEST */
161		161
162	count_t i;	162	count_t i;
163	for (i = 0; i < init.cnt; i++) {	163	for (i = 0; i < init.cnt; i++) {
164	/*	164	/*
165	* Run user tasks, load RAM disk images.	165	* Run user tasks, load RAM disk images.
166	*/	166	*/
167		167
168	if (init.tasks[i].addr % FRAME_SIZE) {	168	if (init.tasks[i].addr % FRAME_SIZE) {
169	printf("init[%d].addr is not frame aligned", i);	169	printf("init[%d].addr is not frame aligned", i);
170	continue;	170	continue;
171	}	171	}
172		172
173	task_t utask = task_run_program((void ) init.tasks[i].addr, "USPACE");	173	task_t utask = task_run_program((void ) init.tasks[i].addr, "USPACE");
174	if (utask) {	174	if (utask) {
175	/*	175	/*
176	* Set capabilities to init userspace tasks.	176	* Set capabilities to init userspace tasks.
177	*/	177	*/
178	cap_set(utask, CAP_CAP \| CAP_MEM_MANAGER \| CAP_IO_MANAGER \| CAP_PREEMPT_CONTROL \| CAP_IRQ_REG);	178	cap_set(utask, CAP_CAP \| CAP_MEM_MANAGER \| CAP_IO_MANAGER \| CAP_PREEMPT_CONTROL \| CAP_IRQ_REG);
179		179
180	if (!ipc_phone_0)	180	if (!ipc_phone_0)
181	ipc_phone_0 = &utask->answerbox;	181	ipc_phone_0 = &utask->answerbox;
182	} else {	182	} else {
183	int rd = init_rd((void *) init.tasks[i].addr);	183	int rd = init_rd((rd_header *) init.tasks[i].addr, init.tasks[i].size);
184		184
185	if (rd != RE_OK)	185	if (rd != RE_OK)
186	printf("Init binary %zd not used.\n", i);	186	printf("Init binary %zd not used.\n", i);
187	}	187	}
188	}	188	}
189		189
190		190
191	if (!stdin) {	191	if (!stdin) {
192	while (1) {	192	while (1) {
193	thread_sleep(1);	193	thread_sleep(1);
194	printf("kinit... ");	194	printf("kinit... ");
195	}	195	}
196	}	196	}
197	#endif /* CONFIG_TEST */	197	#endif /* CONFIG_TEST */
198		198
199	}	199	}
200		200
201	/** @}	201	/** @}
202	*/	202	*/
203		203

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(root)/trunk/kernel/generic/src/main/kinit.c – Rev 2002 → 2005