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
 * @ingroup kernel
 * @{
 */
 
/**
 * @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 1662	Rev 1702
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
-		30	* @ingroup kernel
-		31	* @{
-		32	*/
-		33
29	/**	34	/**
30	* @file kinit.c	35	* @file
31	* @brief Kernel initialization thread.	36	* @brief Kernel initialization thread.
32	*	37	*
33	* This file contains kinit kernel thread which carries out	38	* This file contains kinit kernel thread which carries out
34	* high level system initialization.	39	* high level system initialization.
35	*	40	*
36	* This file is responsible for finishing SMP configuration	41	* This file is responsible for finishing SMP configuration
37	* and creation of userspace init tasks.	42	* and creation of userspace init tasks.
38	*/	43	*/
39		44
40	#include <main/kinit.h>	45	#include <main/kinit.h>
41	#include <config.h>	46	#include <config.h>
42	#include <arch.h>	47	#include <arch.h>
43	#include <proc/scheduler.h>	48	#include <proc/scheduler.h>
44	#include <proc/task.h>	49	#include <proc/task.h>
45	#include <proc/thread.h>	50	#include <proc/thread.h>
46	#include <panic.h>	51	#include <panic.h>
47	#include <func.h>	52	#include <func.h>
48	#include <cpu.h>	53	#include <cpu.h>
49	#include <arch/asm.h>	54	#include <arch/asm.h>
50	#include <mm/page.h>	55	#include <mm/page.h>
51	#include <arch/mm/page.h>	56	#include <arch/mm/page.h>
52	#include <mm/as.h>	57	#include <mm/as.h>
53	#include <mm/frame.h>	58	#include <mm/frame.h>
54	#include <print.h>	59	#include <print.h>
55	#include <memstr.h>	60	#include <memstr.h>
56	#include <console/console.h>	61	#include <console/console.h>
57	#include <interrupt.h>	62	#include <interrupt.h>
58	#include <console/kconsole.h>	63	#include <console/kconsole.h>
59	#include <security/cap.h>	64	#include <security/cap.h>
60		65
61	#ifdef CONFIG_SMP	66	#ifdef CONFIG_SMP
62	#include <arch/smp/mps.h>	67	#include <arch/smp/mps.h>
63	#endif /* CONFIG_SMP */	68	#endif /* CONFIG_SMP */
64		69
65	#include <synch/waitq.h>	70	#include <synch/waitq.h>
66	#include <synch/spinlock.h>	71	#include <synch/spinlock.h>
67		72
68	#ifdef CONFIG_TEST	73	#ifdef CONFIG_TEST
69	#include <test.h>	74	#include <test.h>
70	#endif /* CONFIG_TEST */	75	#endif /* CONFIG_TEST */
71		76
72	/** Kernel initialization thread.	77	/** Kernel initialization thread.
73	*	78	*
74	* kinit takes care of higher level kernel	79	* kinit takes care of higher level kernel
75	* initialization (i.e. thread creation,	80	* initialization (i.e. thread creation,
76	* userspace initialization etc.).	81	* userspace initialization etc.).
77	*	82	*
78	* @param arg Not used.	83	* @param arg Not used.
79	*/	84	*/
80	void kinit(void *arg)	85	void kinit(void *arg)
81	{	86	{
82	thread_t *t;	87	thread_t *t;
83		88
84	/*	89	/*
85	* Detach kinit as nobody will call thread_join_timeout() on it.	90	* Detach kinit as nobody will call thread_join_timeout() on it.
86	*/	91	*/
87	thread_detach(THREAD);	92	thread_detach(THREAD);
88		93
89	interrupts_disable();	94	interrupts_disable();
90		95
91	#ifdef CONFIG_SMP	96	#ifdef CONFIG_SMP
92	if (config.cpu_count > 1) {	97	if (config.cpu_count > 1) {
93	/*	98	/*
94	* Create the kmp thread and wait for its completion.	99	* Create the kmp thread and wait for its completion.
95	* cpu1 through cpuN-1 will come up consecutively and	100	* cpu1 through cpuN-1 will come up consecutively and
96	* not mess together with kcpulb threads.	101	* not mess together with kcpulb threads.
97	* Just a beautification.	102	* Just a beautification.
98	*/	103	*/
99	if ((t = thread_create(kmp, NULL, TASK, 0, "kmp"))) {	104	if ((t = thread_create(kmp, NULL, TASK, 0, "kmp"))) {
100	spinlock_lock(&t->lock);	105	spinlock_lock(&t->lock);
101	t->flags \|= X_WIRED;	106	t->flags \|= X_WIRED;
102	t->cpu = &cpus[0];	107	t->cpu = &cpus[0];
103	spinlock_unlock(&t->lock);	108	spinlock_unlock(&t->lock);
104	thread_ready(t);	109	thread_ready(t);
105	}	110	}
106	else {	111	else {
107	panic("thread_create/kmp\n");	112	panic("thread_create/kmp\n");
108	}	113	}
109	thread_join(t);	114	thread_join(t);
110	thread_detach(t);	115	thread_detach(t);
111	}	116	}
112	#endif /* CONFIG_SMP */	117	#endif /* CONFIG_SMP */
113	/*	118	/*
114	* Now that all CPUs are up, we can report what we've found.	119	* Now that all CPUs are up, we can report what we've found.
115	*/	120	*/
116	cpu_list();	121	cpu_list();
117		122
118	#ifdef CONFIG_SMP	123	#ifdef CONFIG_SMP
119	if (config.cpu_count > 1) {	124	if (config.cpu_count > 1) {
120	int i;	125	int i;
121		126
122	/*	127	/*
123	* For each CPU, create its load balancing thread.	128	* For each CPU, create its load balancing thread.
124	*/	129	*/
125	for (i = 0; i < config.cpu_count; i++) {	130	for (i = 0; i < config.cpu_count; i++) {
126		131
127	if ((t = thread_create(kcpulb, NULL, TASK, 0, "kcpulb"))) {	132	if ((t = thread_create(kcpulb, NULL, TASK, 0, "kcpulb"))) {
128	spinlock_lock(&t->lock);	133	spinlock_lock(&t->lock);
129	t->flags \|= X_WIRED;	134	t->flags \|= X_WIRED;
130	t->cpu = &cpus[i];	135	t->cpu = &cpus[i];
131	spinlock_unlock(&t->lock);	136	spinlock_unlock(&t->lock);
132	thread_ready(t);	137	thread_ready(t);
133	}	138	}
134	else panic("thread_create/kcpulb\n");	139	else panic("thread_create/kcpulb\n");
135		140
136	}	141	}
137	}	142	}
138	#endif /* CONFIG_SMP */	143	#endif /* CONFIG_SMP */
139		144
140	/*	145	/*
141	* At this point SMP, if present, is configured.	146	* At this point SMP, if present, is configured.
142	*/	147	*/
143	arch_post_smp_init();	148	arch_post_smp_init();
144		149
145	/*	150	/*
146	* Create kernel console.	151	* Create kernel console.
147	*/	152	*/
148	if ((t = thread_create(kconsole, "kconsole", TASK, 0, "kconsole")))	153	if ((t = thread_create(kconsole, "kconsole", TASK, 0, "kconsole")))
149	thread_ready(t);	154	thread_ready(t);
150	else	155	else
151	panic("thread_create/kconsole\n");	156	panic("thread_create/kconsole\n");
152		157
153	interrupts_enable();	158	interrupts_enable();
154		159
155	#ifdef CONFIG_TEST	160	#ifdef CONFIG_TEST
156	test();	161	test();
157	printf("\nTest finished, please reboot\n");	162	printf("\nTest finished, please reboot\n");
158	#else /* CONFIG_TEST */	163	#else /* CONFIG_TEST */
159		164
160	task_t *utask;	165	task_t *utask;
161	count_t i;	166	count_t i;
162	for (i = 0; i < init.cnt; i++) {	167	for (i = 0; i < init.cnt; i++) {
163	/*	168	/*
164	* Run user tasks.	169	* Run user tasks.
165	*/	170	*/
166		171
167	if (init.tasks[i].addr % FRAME_SIZE)	172	if (init.tasks[i].addr % FRAME_SIZE)
168	panic("init[%d].addr is not frame aligned", i);	173	panic("init[%d].addr is not frame aligned", i);
169		174
170	utask = task_run_program((void *) init.tasks[i].addr, "USPACE");	175	utask = task_run_program((void *) init.tasks[i].addr, "USPACE");
171	if (utask) {	176	if (utask) {
172	/*	177	/*
173	* Set capabilities to init userspace tasks.	178	* Set capabilities to init userspace tasks.
174	*/	179	*/
175	cap_set(utask, CAP_CAP \| CAP_MEM_MANAGER \| CAP_IO_MANAGER \| CAP_PREEMPT_CONTROL \| CAP_IRQ_REG);	180	cap_set(utask, CAP_CAP \| CAP_MEM_MANAGER \| CAP_IO_MANAGER \| CAP_PREEMPT_CONTROL \| CAP_IRQ_REG);
176		181
177	if (!ipc_phone_0)	182	if (!ipc_phone_0)
178	ipc_phone_0 = &utask->answerbox;	183	ipc_phone_0 = &utask->answerbox;
179	} else	184	} else
180	printf("Init task %zd not started.\n", i);	185	printf("Init task %zd not started.\n", i);
181	}	186	}
182		187
183		188
184	if (!stdin) {	189	if (!stdin) {
185	while (1) {	190	while (1) {
186	thread_sleep(1);	191	thread_sleep(1);
187	printf("kinit... ");	192	printf("kinit... ");
188	}	193	}
189	}	194	}
190	#endif /* CONFIG_TEST */	195	#endif /* CONFIG_TEST */
191		196
192	}	197	}
-		198
-		199	/** @}
-		200	*/
-		201
193		202

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/generic/src/main/kinit.c – Rev 1662 → 1702