WebSVN – HelenOS-historic – Diff – /kernel/trunk/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>
 
#ifdef CONFIG_SMP
#include <arch/smp/mps.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) {
        /*
         * 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, 0, "kmp"))) {
            spinlock_lock(&t->lock);
            t->flags |= X_WIRED;
            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, 0, "kcpulb"))) {
                spinlock_lock(&t->lock);           
                t->flags |= X_WIRED;
                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 */
 
    task_t *utask;
    count_t i;
    for (i = 0; i < init.cnt; i++) {
        /*
         * Run user tasks.
         */
       
        if (init.tasks[i].addr % FRAME_SIZE)
            panic("init[%d].addr is not frame aligned", i);
 
        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
            printf("Init task %zd not started.\n", i);
    }
 
 
    if (!stdin) {
        while (1) {
            thread_sleep(1);
            printf("kinit... ");
        }
    }
#endif /* CONFIG_TEST */
 
}
 
/** @}
 */
 
 

Rev 1705	Rev 1729
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		64
65	#ifdef CONFIG_SMP	65	#ifdef CONFIG_SMP
66	#include <arch/smp/mps.h>	66	#include <arch/smp/mps.h>
67	#endif /* CONFIG_SMP */	67	#endif /* CONFIG_SMP */
68		68
69	#include <synch/waitq.h>	69	#include <synch/waitq.h>
70	#include <synch/spinlock.h>	70	#include <synch/spinlock.h>
71		71
72	#ifdef CONFIG_TEST	72	#ifdef CONFIG_TEST
73	#include <test.h>	73	#include <test.h>
74	#endif /* CONFIG_TEST */	74	#endif /* CONFIG_TEST */
75		75
76	/** Kernel initialization thread.	76	/** Kernel initialization thread.
77	*	77	*
78	* kinit takes care of higher level kernel	78	* kinit takes care of higher level kernel
79	* initialization (i.e. thread creation,	79	* initialization (i.e. thread creation,
80	* userspace initialization etc.).	80	* userspace initialization etc.).
81	*	81	*
82	* @param arg Not used.	82	* @param arg Not used.
83	*/	83	*/
84	void kinit(void *arg)	84	void kinit(void *arg)
85	{	85	{
86	thread_t *t;	86	thread_t *t;
87		87
88	/*	88	/*
89	* Detach kinit as nobody will call thread_join_timeout() on it.	89	* Detach kinit as nobody will call thread_join_timeout() on it.
90	*/	90	*/
91	thread_detach(THREAD);	91	thread_detach(THREAD);
92		92
93	interrupts_disable();	93	interrupts_disable();
94		94
95	#ifdef CONFIG_SMP	95	#ifdef CONFIG_SMP
96	if (config.cpu_count > 1) {	96	if (config.cpu_count > 1) {
97	/*	97	/*
98	* Create the kmp thread and wait for its completion.	98	* Create the kmp thread and wait for its completion.
99	* cpu1 through cpuN-1 will come up consecutively and	99	* cpu1 through cpuN-1 will come up consecutively and
100	* not mess together with kcpulb threads.	100	* not mess together with kcpulb threads.
101	* Just a beautification.	101	* Just a beautification.
102	*/	102	*/
103	if ((t = thread_create(kmp, NULL, TASK, 0, "kmp"))) {	103	if ((t = thread_create(kmp, NULL, TASK, 0, "kmp"))) {
104	spinlock_lock(&t->lock);	104	spinlock_lock(&t->lock);
105	t->flags \|= X_WIRED;	105	t->flags \|= X_WIRED;
106	t->cpu = &cpus[0];	106	t->cpu = &cpus[0];
107	spinlock_unlock(&t->lock);	107	spinlock_unlock(&t->lock);
108	thread_ready(t);	108	thread_ready(t);
109	}	-
110	else {	109	} else
111	panic("thread_create/kmp\n");	110	panic("thread_create/kmp\n");
112	}	-
113	thread_join(t);	111	thread_join(t);
114	thread_detach(t);	112	thread_detach(t);
115	}	113	}
116	#endif /* CONFIG_SMP */	114	#endif /* CONFIG_SMP */
117	/*	115	/*
118	* Now that all CPUs are up, we can report what we've found.	116	* Now that all CPUs are up, we can report what we've found.
119	*/	117	*/
120	cpu_list();	118	cpu_list();
121		119
122	#ifdef CONFIG_SMP	120	#ifdef CONFIG_SMP
123	if (config.cpu_count > 1) {	121	if (config.cpu_count > 1) {
124	int i;	122	int i;
125		123
126	/*	124	/*
127	* For each CPU, create its load balancing thread.	125	* For each CPU, create its load balancing thread.
128	*/	126	*/
129	for (i = 0; i < config.cpu_count; i++) {	127	for (i = 0; i < config.cpu_count; i++) {
130		128
131	if ((t = thread_create(kcpulb, NULL, TASK, 0, "kcpulb"))) {	129	if ((t = thread_create(kcpulb, NULL, TASK, 0, "kcpulb"))) {
132	spinlock_lock(&t->lock);	130	spinlock_lock(&t->lock);
133	t->flags \|= X_WIRED;	131	t->flags \|= X_WIRED;
134	t->cpu = &cpus[i];	132	t->cpu = &cpus[i];
135	spinlock_unlock(&t->lock);	133	spinlock_unlock(&t->lock);
136	thread_ready(t);	134	thread_ready(t);
137	}	135	} else
138	else panic("thread_create/kcpulb\n");	136	panic("thread_create/kcpulb\n");
139		137
140	}	138	}
141	}	139	}
142	#endif /* CONFIG_SMP */	140	#endif /* CONFIG_SMP */
143		141
144	/*	142	/*
145	* At this point SMP, if present, is configured.	143	* At this point SMP, if present, is configured.
146	*/	144	*/
147	arch_post_smp_init();	145	arch_post_smp_init();
148		146
149	/*	147	/*
150	* Create kernel console.	148	* Create kernel console.
151	*/	149	*/
152	if ((t = thread_create(kconsole, "kconsole", TASK, 0, "kconsole")))	150	if ((t = thread_create(kconsole, "kconsole", TASK, 0, "kconsole")))
153	thread_ready(t);	151	thread_ready(t);
154	else	152	else
155	panic("thread_create/kconsole\n");	153	panic("thread_create/kconsole\n");
156		154
157	interrupts_enable();	155	interrupts_enable();
158		156
159	#ifdef CONFIG_TEST	157	#ifdef CONFIG_TEST
160	test();	158	test();
161	printf("\nTest finished, please reboot\n");	159	printf("\nTest finished, please reboot\n");
162	#else /* CONFIG_TEST */	160	#else /* CONFIG_TEST */
163		161
164	task_t *utask;	162	task_t *utask;
165	count_t i;	163	count_t i;
166	for (i = 0; i < init.cnt; i++) {	164	for (i = 0; i < init.cnt; i++) {
167	/*	165	/*
168	* Run user tasks.	166	* Run user tasks.
169	*/	167	*/
170		168
171	if (init.tasks[i].addr % FRAME_SIZE)	169	if (init.tasks[i].addr % FRAME_SIZE)
172	panic("init[%d].addr is not frame aligned", i);	170	panic("init[%d].addr is not frame aligned", i);
173		171
174	utask = task_run_program((void *) init.tasks[i].addr, "USPACE");	172	utask = task_run_program((void *) init.tasks[i].addr, "USPACE");
175	if (utask) {	173	if (utask) {
176	/*	174	/*
177	* Set capabilities to init userspace tasks.	175	* Set capabilities to init userspace tasks.
178	*/	176	*/
179	cap_set(utask, CAP_CAP \| CAP_MEM_MANAGER \| CAP_IO_MANAGER \| CAP_PREEMPT_CONTROL \| CAP_IRQ_REG);	177	cap_set(utask, CAP_CAP \| CAP_MEM_MANAGER \| CAP_IO_MANAGER \| CAP_PREEMPT_CONTROL \| CAP_IRQ_REG);
180		178
181	if (!ipc_phone_0)	179	if (!ipc_phone_0)
182	ipc_phone_0 = &utask->answerbox;	180	ipc_phone_0 = &utask->answerbox;
183	} else	181	} else
184	printf("Init task %zd not started.\n", i);	182	printf("Init task %zd not started.\n", i);
185	}	183	}
186		184
187		185
188	if (!stdin) {	186	if (!stdin) {
189	while (1) {	187	while (1) {
190	thread_sleep(1);	188	thread_sleep(1);
191	printf("kinit... ");	189	printf("kinit... ");
192	}	190	}
193	}	191	}
194	#endif /* CONFIG_TEST */	192	#endif /* CONFIG_TEST */
195		193
196	}	194	}
197		195
198	/** @}	196	/** @}
199	*/	197	*/
200		-
201		198

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/generic/src/main/kinit.c – Rev 1705 → 1729