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>
 
#include <ipc/ns.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;
 
 
 
 
 
    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();
 
    /* Initialize name service */
    ns_start();
 
    if (config.init_size > 0) {
        /*
         * Create the first user task.
         */
       
        if (config.init_addr % FRAME_SIZE)
            panic("config.init_addr is not frame aligned");
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
        if (!task_run_program((void *)config.init_addr)) {
            printf("Userspace not started.\n");
        }
    }
 
#ifdef CONFIG_TEST
    test();
#endif /* CONFIG_TEST */
 
    if (!stdin) {
        while (1) {
            thread_sleep(1);
            printf("kinit... ");
        }
    }
 
}
 

Rev 965	Rev 973
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 <main/uinit.h>	-
31	#include <config.h>	30	#include <config.h>
32	#include <arch.h>	31	#include <arch.h>
33	#include <proc/scheduler.h>	32	#include <proc/scheduler.h>
34	#include <proc/task.h>	33	#include <proc/task.h>
35	#include <proc/thread.h>	34	#include <proc/thread.h>
36	#include <panic.h>	35	#include <panic.h>
37	#include <func.h>	36	#include <func.h>
38	#include <cpu.h>	37	#include <cpu.h>
39	#include <arch/asm.h>	38	#include <arch/asm.h>
40	#include <mm/page.h>	39	#include <mm/page.h>
41	#include <arch/mm/page.h>	40	#include <arch/mm/page.h>
42	#include <mm/as.h>	41	#include <mm/as.h>
43	#include <mm/frame.h>	42	#include <mm/frame.h>
44	#include <print.h>	43	#include <print.h>
45	#include <memstr.h>	44	#include <memstr.h>
46	#include <console/console.h>	45	#include <console/console.h>
47	#include <interrupt.h>	46	#include <interrupt.h>
48	#include <console/kconsole.h>	47	#include <console/kconsole.h>
49	#include <elf.h>	-
50	#include <ipc/ns.h>	48	#include <ipc/ns.h>
51		49
52	#ifdef CONFIG_SMP	50	#ifdef CONFIG_SMP
53	#include <arch/smp/mps.h>	51	#include <arch/smp/mps.h>
54	#endif /* CONFIG_SMP */	52	#endif /* CONFIG_SMP */
55		53
56	#include <synch/waitq.h>	54	#include <synch/waitq.h>
57	#include <synch/spinlock.h>	55	#include <synch/spinlock.h>
58		56
59	#ifdef CONFIG_TEST	57	#ifdef CONFIG_TEST
60	#include <test.h>	58	#include <test.h>
61	#endif /* CONFIG_TEST */	59	#endif /* CONFIG_TEST */
62		60
63	/** Kernel initialization thread.	61	/** Kernel initialization thread.
64	*	62	*
65	* kinit takes care of higher level kernel	63	* kinit takes care of higher level kernel
66	* initialization (i.e. thread creation,	64	* initialization (i.e. thread creation,
67	* userspace initialization etc.).	65	* userspace initialization etc.).
68	*	66	*
69	* @param arg Not used.	67	* @param arg Not used.
70	*/	68	*/
71	void kinit(void *arg)	69	void kinit(void *arg)
72	{	70	{
73	thread_t *t;	71	thread_t *t;
74	as_t *as;	-
75	as_area_t *a;	-
76	int rc;	-
77	task_t *u;	-
78		72
79	interrupts_disable();	73	interrupts_disable();
80		74
81	#ifdef CONFIG_SMP	75	#ifdef CONFIG_SMP
82	if (config.cpu_count > 1) {	76	if (config.cpu_count > 1) {
83	/*	77	/*
84	* Create the kmp thread and wait for its completion.	78	* Create the kmp thread and wait for its completion.
85	* cpu1 through cpuN-1 will come up consecutively and	79	* cpu1 through cpuN-1 will come up consecutively and
86	* not mess together with kcpulb threads.	80	* not mess together with kcpulb threads.
87	* Just a beautification.	81	* Just a beautification.
88	*/	82	*/
89	if ((t = thread_create(kmp, NULL, TASK, 0))) {	83	if ((t = thread_create(kmp, NULL, TASK, 0))) {
90	spinlock_lock(&t->lock);	84	spinlock_lock(&t->lock);
91	t->flags \|= X_WIRED;	85	t->flags \|= X_WIRED;
92	t->cpu = &cpus[0];	86	t->cpu = &cpus[0];
93	spinlock_unlock(&t->lock);	87	spinlock_unlock(&t->lock);
94	thread_ready(t);	88	thread_ready(t);
95	waitq_sleep(&kmp_completion_wq);	89	waitq_sleep(&kmp_completion_wq);
96	}	90	}
97	else panic("thread_create/kmp\n");	91	else panic("thread_create/kmp\n");
98	}	92	}
99	#endif /* CONFIG_SMP */	93	#endif /* CONFIG_SMP */
100	/*	94	/*
101	* 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.
102	*/	96	*/
103	cpu_list();	97	cpu_list();
104		98
105	#ifdef CONFIG_SMP	99	#ifdef CONFIG_SMP
106	if (config.cpu_count > 1) {	100	if (config.cpu_count > 1) {
107	int i;	101	int i;
108		102
109	/*	103	/*
110	* For each CPU, create its load balancing thread.	104	* For each CPU, create its load balancing thread.
111	*/	105	*/
112	for (i = 0; i < config.cpu_count; i++) {	106	for (i = 0; i < config.cpu_count; i++) {
113		107
114	if ((t = thread_create(kcpulb, NULL, TASK, 0))) {	108	if ((t = thread_create(kcpulb, NULL, TASK, 0))) {
115	spinlock_lock(&t->lock);	109	spinlock_lock(&t->lock);
116	t->flags \|= X_WIRED;	110	t->flags \|= X_WIRED;
117	t->cpu = &cpus[i];	111	t->cpu = &cpus[i];
118	spinlock_unlock(&t->lock);	112	spinlock_unlock(&t->lock);
119	thread_ready(t);	113	thread_ready(t);
120	}	114	}
121	else panic("thread_create/kcpulb\n");	115	else panic("thread_create/kcpulb\n");
122		116
123	}	117	}
124	}	118	}
125	#endif /* CONFIG_SMP */	119	#endif /* CONFIG_SMP */
126		120
127	/*	121	/*
128	* At this point SMP, if present, is configured.	122	* At this point SMP, if present, is configured.
129	*/	123	*/
130	arch_post_smp_init();	124	arch_post_smp_init();
131		125
132	/*	126	/*
133	* Create kernel console.	127	* Create kernel console.
134	*/	128	*/
135	if ((t = thread_create(kconsole, "kconsole", TASK, 0)))	129	if ((t = thread_create(kconsole, "kconsole", TASK, 0)))
136	thread_ready(t);	130	thread_ready(t);
137	else	131	else
138	panic("thread_create/kconsole\n");	132	panic("thread_create/kconsole\n");
139		133
140	interrupts_enable();	134	interrupts_enable();
141		135
142	/* Initialize name service */	136	/* Initialize name service */
143	ns_start();	137	ns_start();
144		138
145	if (config.init_size > 0) {	139	if (config.init_size > 0) {
146	/*	140	/*
147	* Create the first user task.	141	* Create the first user task.
148	*/	142	*/
149		143
150	if (config.init_addr % FRAME_SIZE)	144	if (config.init_addr % FRAME_SIZE)
151	panic("config.init_addr is not frame aligned");	145	panic("config.init_addr is not frame aligned");
152		-
153	as = as_create(0);	-
154	if (!as)	-
155	panic("as_create\n");	-
156		-
157	rc = elf_load((elf_header_t *) config.init_addr, as);	-
158	if (rc != EE_OK) {	-
159	printf("elf_load failed: %s\n", elf_error(rc));	-
160	} else {	-
161	u = task_create(as);	-
162	if (!u)	-
163	panic("task_create\n");	-
164	t = thread_create(uinit, (void )((elf_header_t ) config.init_addr)->e_entry, u, THREAD_USER_STACK);	-
165	if (!t)	-
166	panic("thread_create\n");	-
167		-
168	/*	-
169	* Create the data as_area.	-
170	*/	-
171	a = as_area_create(as, AS_AREA_STACK, 1, USTACK_ADDRESS);	-
172	if (!a)	-
173	panic("as_area_create: stack\n");	-
174		146
-		147	if (!task_run_program((void *)config.init_addr)) {
175	thread_ready(t);	148	printf("Userspace not started.\n");
176	}	149	}
177	}	150	}
178		151
179	#ifdef CONFIG_TEST	152	#ifdef CONFIG_TEST
180	test();	153	test();
181	#endif /* CONFIG_TEST */	154	#endif /* CONFIG_TEST */
182		155
183	if (!stdin) {	156	if (!stdin) {
184	while (1) {	157	while (1) {
185	thread_sleep(1);	158	thread_sleep(1);
186	printf("kinit... ");	159	printf("kinit... ");
187	}	160	}
188	}	161	}
189		162
190	}	163	}
191		164

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/generic/src/main/kinit.c – Rev 965 → 973