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.
 */
 
#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>
 
#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;
    task_t *utask;
 
    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))) {
            spinlock_lock(&t->lock);
            t->flags |= X_WIRED;
            t->cpu = &cpus[0];
            spinlock_unlock(&t->lock);
            thread_ready(t);
            waitq_sleep(&kmp_completion_wq);
        }
        else panic("thread_create/kmp\n");
    }
#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))) {
                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)))
        thread_ready(t);
    else
        panic("thread_create/kconsole\n");
 
    interrupts_enable();
   
    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);
        if (utask) {
            if (!ipc_phone_0)
                ipc_phone_0 = &utask->answerbox;
        } else
            printf("Userspace not started.\n");
    }
 
#ifdef CONFIG_TEST
    test();
#endif /* CONFIG_TEST */
 
    if (!stdin) {
        while (1) {
            thread_sleep(1);
            printf("kinit... ");
        }
    }
 
}
 

Rev 1037	Rev 1040
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	#include <main/kinit.h>	29	#include <main/kinit.h>
30	#include <config.h>	30	#include <config.h>
31	#include <arch.h>	31	#include <arch.h>
32	#include <proc/scheduler.h>	32	#include <proc/scheduler.h>
33	#include <proc/task.h>	33	#include <proc/task.h>
34	#include <proc/thread.h>	34	#include <proc/thread.h>
35	#include <panic.h>	35	#include <panic.h>
36	#include <func.h>	36	#include <func.h>
37	#include <cpu.h>	37	#include <cpu.h>
38	#include <arch/asm.h>	38	#include <arch/asm.h>
39	#include <mm/page.h>	39	#include <mm/page.h>
40	#include <arch/mm/page.h>	40	#include <arch/mm/page.h>
41	#include <mm/as.h>	41	#include <mm/as.h>
42	#include <mm/frame.h>	42	#include <mm/frame.h>
43	#include <print.h>	43	#include <print.h>
44	#include <memstr.h>	44	#include <memstr.h>
45	#include <console/console.h>	45	#include <console/console.h>
46	#include <interrupt.h>	46	#include <interrupt.h>
47	#include <console/kconsole.h>	47	#include <console/kconsole.h>
48		48
49	#ifdef CONFIG_SMP	49	#ifdef CONFIG_SMP
50	#include <arch/smp/mps.h>	50	#include <arch/smp/mps.h>
51	#endif /* CONFIG_SMP */	51	#endif /* CONFIG_SMP */
52		52
53	#include <synch/waitq.h>	53	#include <synch/waitq.h>
54	#include <synch/spinlock.h>	54	#include <synch/spinlock.h>
55		55
56	#ifdef CONFIG_TEST	56	#ifdef CONFIG_TEST
57	#include <test.h>	57	#include <test.h>
58	#endif /* CONFIG_TEST */	58	#endif /* CONFIG_TEST */
59		59
60	/** Kernel initialization thread.	60	/** Kernel initialization thread.
61	*	61	*
62	* kinit takes care of higher level kernel	62	* kinit takes care of higher level kernel
63	* initialization (i.e. thread creation,	63	* initialization (i.e. thread creation,
64	* userspace initialization etc.).	64	* userspace initialization etc.).
65	*	65	*
66	* @param arg Not used.	66	* @param arg Not used.
67	*/	67	*/
68	void kinit(void *arg)	68	void kinit(void *arg)
69	{	69	{
70	thread_t *t;	70	thread_t *t;
71	task_t *utask;	71	task_t *utask;
72		72
73	interrupts_disable();	73	interrupts_disable();
74		74
75	#ifdef CONFIG_SMP	75	#ifdef CONFIG_SMP
76	if (config.cpu_count > 1) {	76	if (config.cpu_count > 1) {
77	/*	77	/*
78	* Create the kmp thread and wait for its completion.	78	* Create the kmp thread and wait for its completion.
79	* cpu1 through cpuN-1 will come up consecutively and	79	* cpu1 through cpuN-1 will come up consecutively and
80	* not mess together with kcpulb threads.	80	* not mess together with kcpulb threads.
81	* Just a beautification.	81	* Just a beautification.
82	*/	82	*/
83	if ((t = thread_create(kmp, NULL, TASK, 0))) {	83	if ((t = thread_create(kmp, NULL, TASK, 0))) {
84	spinlock_lock(&t->lock);	84	spinlock_lock(&t->lock);
85	t->flags \|= X_WIRED;	85	t->flags \|= X_WIRED;
86	t->cpu = &cpus[0];	86	t->cpu = &cpus[0];
87	spinlock_unlock(&t->lock);	87	spinlock_unlock(&t->lock);
88	thread_ready(t);	88	thread_ready(t);
89	waitq_sleep(&kmp_completion_wq);	89	waitq_sleep(&kmp_completion_wq);
90	}	90	}
91	else panic("thread_create/kmp\n");	91	else panic("thread_create/kmp\n");
92	}	92	}
93	#endif /* CONFIG_SMP */	93	#endif /* CONFIG_SMP */
94	/*	94	/*
95	* Now that all CPUs are up, we can report what we've found.	95	* Now that all CPUs are up, we can report what we've found.
96	*/	96	*/
97	cpu_list();	97	cpu_list();
98		98
99	#ifdef CONFIG_SMP	99	#ifdef CONFIG_SMP
100	if (config.cpu_count > 1) {	100	if (config.cpu_count > 1) {
101	int i;	101	int i;
102		102
103	/*	103	/*
104	* For each CPU, create its load balancing thread.	104	* For each CPU, create its load balancing thread.
105	*/	105	*/
106	for (i = 0; i < config.cpu_count; i++) {	106	for (i = 0; i < config.cpu_count; i++) {
107		107
108	if ((t = thread_create(kcpulb, NULL, TASK, 0))) {	108	if ((t = thread_create(kcpulb, NULL, TASK, 0))) {
109	spinlock_lock(&t->lock);	109	spinlock_lock(&t->lock);
110	t->flags \|= X_WIRED;	110	t->flags \|= X_WIRED;
111	t->cpu = &cpus[i];	111	t->cpu = &cpus[i];
112	spinlock_unlock(&t->lock);	112	spinlock_unlock(&t->lock);
113	thread_ready(t);	113	thread_ready(t);
114	}	114	}
115	else panic("thread_create/kcpulb\n");	115	else panic("thread_create/kcpulb\n");
116		116
117	}	117	}
118	}	118	}
119	#endif /* CONFIG_SMP */	119	#endif /* CONFIG_SMP */
120		120
121	/*	121	/*
122	* At this point SMP, if present, is configured.	122	* At this point SMP, if present, is configured.
123	*/	123	*/
124	arch_post_smp_init();	124	arch_post_smp_init();
125		125
126	/*	126	/*
127	* Create kernel console.	127	* Create kernel console.
128	*/	128	*/
129	if ((t = thread_create(kconsole, "kconsole", TASK, 0)))	129	if ((t = thread_create(kconsole, "kconsole", TASK, 0)))
130	thread_ready(t);	130	thread_ready(t);
131	else	131	else
132	panic("thread_create/kconsole\n");	132	panic("thread_create/kconsole\n");
133		133
134	interrupts_enable();	134	interrupts_enable();
135		135
136	count_t i;	136	count_t i;
137	for (i = 0; i < init.cnt; i++) {	137	for (i = 0; i < init.cnt; i++) {
138	/*	138	/*
139	* Run user tasks.	139	* Run user tasks.
140	*/	140	*/
141		141
142	if (init.tasks[i].addr % FRAME_SIZE)	142	if (init.tasks[i].addr % FRAME_SIZE)
143	panic("init[%d].addr is not frame aligned", i);	143	panic("init[%d].addr is not frame aligned", i);
144		144
145	utask = task_run_program((void *) init.tasks[i].addr);	145	utask = task_run_program((void *) init.tasks[i].addr);
146	if (utask)	146	if (utask) {
-		147	if (!ipc_phone_0)
147	ipc_phone_0 = &utask->answerbox;	148	ipc_phone_0 = &utask->answerbox;
148	else	149	} else
149	printf("Userspace not started.\n");	150	printf("Userspace not started.\n");
150	}	151	}
151		152
152	#ifdef CONFIG_TEST	153	#ifdef CONFIG_TEST
153	test();	154	test();
154	#endif /* CONFIG_TEST */	155	#endif /* CONFIG_TEST */
155		156
156	if (!stdin) {	157	if (!stdin) {
157	while (1) {	158	while (1) {
158	thread_sleep(1);	159	thread_sleep(1);
159	printf("kinit... ");	160	printf("kinit... ");
160	}	161	}
161	}	162	}
162		163
163	}	164	}
164		165

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/generic/src/main/kinit.c – Rev 1037 → 1040