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 <main/kconsole.h>
#include <main/uinit.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/vm.h>
#include <print.h>
#include <memstr.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 */
 
#include <mm/frame.h>
 
void kinit(void *arg)
{
    vm_t *m;
    vm_area_t *a;
    task_t *u;
    thread_t *t;
    int i;
 
    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.
     */
    for (i = 0; i < config.cpu_count; i++) {
        if (cpus[i].active)
            cpu_print_report(&cpus[i]);
        else
            printf("cpu%d: not active\n", i);
    }
 
#ifdef CONFIG_SMP
    if (config.cpu_count > 1) {
        /*
         * 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, NULL, TASK, 0))
        thread_ready(t);
    else panic("thread_create/kconsole\n");
 
    interrupts_enable();
 
#ifdef CONFIG_USERSPACE
    /*
     * Create the first user task.
     */
    m = vm_create(NULL);
    if (!m)
        panic("vm_create\n");
    u = task_create(m);
    if (!u)
        panic("task_create\n");
    t = thread_create(uinit, NULL, u, THREAD_USER_STACK);
    if (!t)
        panic("thread_create\n");
 
    /*
     * Create the text vm_area and copy the userspace code there.
     */
    a = vm_area_create(m, VMA_TEXT, 1, UTEXT_ADDRESS);
    if (!a)
        panic("vm_area_create: vm_text\n");
    vm_area_map(a, m);
    memcpy((void *) PA2KA(a->mapping[0]), (void *) utext, utext_size < PAGE_SIZE ? utext_size : PAGE_SIZE);
 
    /*
     * Create the data vm_area.
     */
    a = vm_area_create(m, VMA_STACK, 1, USTACK_ADDRESS);
    if (!a)
        panic("vm_area_create: vm_stack\n");
    vm_area_map(a, m); 
   
    thread_ready(t);
#endif /* CONFIG_USERSPACE */
 
#ifdef CONFIG_TEST
    test();
#endif /* CONFIG_TEST */
 
    while (1) {
        thread_sleep(1);
        printf("kinit... ");
    }
 
}
 

Rev 510	Rev 512
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/kconsole.h>	30	#include <main/kconsole.h>
31	#include <main/uinit.h>	31	#include <main/uinit.h>
32	#include <config.h>	32	#include <config.h>
33	#include <arch.h>	33	#include <arch.h>
34	#include <proc/scheduler.h>	34	#include <proc/scheduler.h>
35	#include <proc/task.h>	35	#include <proc/task.h>
36	#include <proc/thread.h>	36	#include <proc/thread.h>
37	#include <panic.h>	37	#include <panic.h>
38	#include <func.h>	38	#include <func.h>
39	#include <cpu.h>	39	#include <cpu.h>
40	#include <arch/asm.h>	40	#include <arch/asm.h>
41	#include <mm/page.h>	41	#include <mm/page.h>
42	#include <arch/mm/page.h>	42	#include <arch/mm/page.h>
43	#include <mm/vm.h>	43	#include <mm/vm.h>
44	#include <print.h>	44	#include <print.h>
45	#include <memstr.h>	45	#include <memstr.h>
46		46
47	#ifdef CONFIG_SMP	47	#ifdef CONFIG_SMP
48	#include <arch/smp/mps.h>	48	#include <arch/smp/mps.h>
49	#endif /* CONFIG_SMP */	49	#endif /* CONFIG_SMP */
50		50
51	#include <synch/waitq.h>	51	#include <synch/waitq.h>
52	#include <synch/spinlock.h>	52	#include <synch/spinlock.h>
53		53
54	#ifdef CONFIG_TEST	54	#ifdef CONFIG_TEST
55	#include <test.h>	55	#include <test.h>
56	#endif /* CONFIG_TEST */	56	#endif /* CONFIG_TEST */
57		57
58	#include <mm/frame.h>	58	#include <mm/frame.h>
59		59
60	void kinit(void *arg)	60	void kinit(void *arg)
61	{	61	{
62	vm_t *m;	62	vm_t *m;
63	vm_area_t *a;	63	vm_area_t *a;
64	task_t *u;	64	task_t *u;
65	thread_t *t;	65	thread_t *t;
66	int i;	66	int i;
67		67
68	interrupts_disable();	68	interrupts_disable();
69		69
70	#ifdef CONFIG_SMP	70	#ifdef CONFIG_SMP
71	if (config.cpu_count > 1) {	71	if (config.cpu_count > 1) {
72	/*	72	/*
73	* Create the kmp thread and wait for its completion.	73	* Create the kmp thread and wait for its completion.
74	* cpu1 through cpuN-1 will come up consecutively and	74	* cpu1 through cpuN-1 will come up consecutively and
75	* not mess together with kcpulb threads.	75	* not mess together with kcpulb threads.
76	* Just a beautification.	76	* Just a beautification.
77	*/	77	*/
78	if (t = thread_create(kmp, NULL, TASK, 0)) {	78	if (t = thread_create(kmp, NULL, TASK, 0)) {
79	spinlock_lock(&t->lock);	79	spinlock_lock(&t->lock);
80	t->flags \|= X_WIRED;	80	t->flags \|= X_WIRED;
81	t->cpu = &cpus[0];	81	t->cpu = &cpus[0];
82	spinlock_unlock(&t->lock);	82	spinlock_unlock(&t->lock);
83	thread_ready(t);	83	thread_ready(t);
84	waitq_sleep(&kmp_completion_wq);	84	waitq_sleep(&kmp_completion_wq);
85	}	85	}
86	else panic("thread_create/kmp\n");	86	else panic("thread_create/kmp\n");
87	}	87	}
88	#endif /* CONFIG_SMP */	88	#endif /* CONFIG_SMP */
89	/*	89	/*
90	* Now that all CPUs are up, we can report what we've found.	90	* Now that all CPUs are up, we can report what we've found.
91	*/	91	*/
92	for (i = 0; i < config.cpu_count; i++) {	92	for (i = 0; i < config.cpu_count; i++) {
93	if (cpus[i].active)	93	if (cpus[i].active)
94	cpu_print_report(&cpus[i]);	94	cpu_print_report(&cpus[i]);
95	else	95	else
96	printf("cpu%d: not active\n", i);	96	printf("cpu%d: not active\n", i);
97	}	97	}
98		98
99	#ifdef CONFIG_SMP	99	#ifdef CONFIG_SMP
100	if (config.cpu_count > 1) {	100	if (config.cpu_count > 1) {
101	/*	101	/*
102	* For each CPU, create its load balancing thread.	102	* For each CPU, create its load balancing thread.
103	*/	103	*/
104	for (i = 0; i < config.cpu_count; i++) {	104	for (i = 0; i < config.cpu_count; i++) {
105		105
106	if (t = thread_create(kcpulb, NULL, TASK, 0)) {	106	if (t = thread_create(kcpulb, NULL, TASK, 0)) {
107	spinlock_lock(&t->lock);	107	spinlock_lock(&t->lock);
108	t->flags \|= X_WIRED;	108	t->flags \|= X_WIRED;
109	t->cpu = &cpus[i];	109	t->cpu = &cpus[i];
110	spinlock_unlock(&t->lock);	110	spinlock_unlock(&t->lock);
111	thread_ready(t);	111	thread_ready(t);
112	}	112	}
113	else panic("thread_create/kcpulb\n");	113	else panic("thread_create/kcpulb\n");
114		114
115	}	115	}
116	}	116	}
117	#endif /* CONFIG_SMP */	117	#endif /* CONFIG_SMP */
118		118
119	/*	119	/*
-		120	* At this point SMP, if present, is configured.
-		121	*/
-		122	arch_post_smp_init();
-		123
-		124	/*
120	* Create kernel console.	125	* Create kernel console.
121	*/	126	*/
122	if (t = thread_create(kconsole, NULL, TASK, 0))	127	if (t = thread_create(kconsole, NULL, TASK, 0))
123	thread_ready(t);	128	thread_ready(t);
124	else panic("thread_create/kconsole\n");	129	else panic("thread_create/kconsole\n");
125		130
126	interrupts_enable();	131	interrupts_enable();
127		132
128	#ifdef CONFIG_USERSPACE	133	#ifdef CONFIG_USERSPACE
129	/*	134	/*
130	* Create the first user task.	135	* Create the first user task.
131	*/	136	*/
132	m = vm_create(NULL);	137	m = vm_create(NULL);
133	if (!m)	138	if (!m)
134	panic("vm_create\n");	139	panic("vm_create\n");
135	u = task_create(m);	140	u = task_create(m);
136	if (!u)	141	if (!u)
137	panic("task_create\n");	142	panic("task_create\n");
138	t = thread_create(uinit, NULL, u, THREAD_USER_STACK);	143	t = thread_create(uinit, NULL, u, THREAD_USER_STACK);
139	if (!t)	144	if (!t)
140	panic("thread_create\n");	145	panic("thread_create\n");
141		146
142	/*	147	/*
143	* Create the text vm_area and copy the userspace code there.	148	* Create the text vm_area and copy the userspace code there.
144	*/	149	*/
145	a = vm_area_create(m, VMA_TEXT, 1, UTEXT_ADDRESS);	150	a = vm_area_create(m, VMA_TEXT, 1, UTEXT_ADDRESS);
146	if (!a)	151	if (!a)
147	panic("vm_area_create: vm_text\n");	152	panic("vm_area_create: vm_text\n");
148	vm_area_map(a, m);	153	vm_area_map(a, m);
149	memcpy((void ) PA2KA(a->mapping[0]), (void ) utext, utext_size < PAGE_SIZE ? utext_size : PAGE_SIZE);	154	memcpy((void ) PA2KA(a->mapping[0]), (void ) utext, utext_size < PAGE_SIZE ? utext_size : PAGE_SIZE);
150		155
151	/*	156	/*
152	* Create the data vm_area.	157	* Create the data vm_area.
153	*/	158	*/
154	a = vm_area_create(m, VMA_STACK, 1, USTACK_ADDRESS);	159	a = vm_area_create(m, VMA_STACK, 1, USTACK_ADDRESS);
155	if (!a)	160	if (!a)
156	panic("vm_area_create: vm_stack\n");	161	panic("vm_area_create: vm_stack\n");
157	vm_area_map(a, m);	162	vm_area_map(a, m);
158		163
159	thread_ready(t);	164	thread_ready(t);
160	#endif /* CONFIG_USERSPACE */	165	#endif /* CONFIG_USERSPACE */
161		166
162	#ifdef CONFIG_TEST	167	#ifdef CONFIG_TEST
163	test();	168	test();
164	#endif /* CONFIG_TEST */	169	#endif /* CONFIG_TEST */
165		170
166	while (1) {	171	while (1) {
167	thread_sleep(60);	172	thread_sleep(1);
168	printf("kinit... ");	173	printf("kinit... ");
169	}	174	}
170		175
171	}	176	}
172		177

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(root)/kernel/trunk/generic/src/main/kinit.c – Rev 510 → 512