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/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 <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)
{
    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 */
 
    if (!stdin) {
        while (1) {
            thread_sleep(1);
            printf("kinit... ");
        }
    }
 
}
 

Rev 534	Rev 578
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>	30	#include <main/uinit.h>
31	#include <config.h>	31	#include <config.h>
32	#include <arch.h>	32	#include <arch.h>
33	#include <proc/scheduler.h>	33	#include <proc/scheduler.h>
34	#include <proc/task.h>	34	#include <proc/task.h>
35	#include <proc/thread.h>	35	#include <proc/thread.h>
36	#include <panic.h>	36	#include <panic.h>
37	#include <func.h>	37	#include <func.h>
38	#include <cpu.h>	38	#include <cpu.h>
39	#include <arch/asm.h>	39	#include <arch/asm.h>
40	#include <mm/page.h>	40	#include <mm/page.h>
41	#include <arch/mm/page.h>	41	#include <arch/mm/page.h>
42	#include <mm/vm.h>	42	#include <mm/vm.h>
43	#include <mm/frame.h>	43	#include <mm/frame.h>
44	#include <print.h>	44	#include <print.h>
45	#include <memstr.h>	45	#include <memstr.h>
46	#include <console/console.h>	46	#include <console/console.h>
-		47	#include <interrupt.h>
47	#include <console/kconsole.h>	48	#include <console/kconsole.h>
48		49
49	#ifdef CONFIG_SMP	50	#ifdef CONFIG_SMP
50	#include <arch/smp/mps.h>	51	#include <arch/smp/mps.h>
51	#endif /* CONFIG_SMP */	52	#endif /* CONFIG_SMP */
52		53
53	#include <synch/waitq.h>	54	#include <synch/waitq.h>
54	#include <synch/spinlock.h>	55	#include <synch/spinlock.h>
55		56
56	#ifdef CONFIG_TEST	57	#ifdef CONFIG_TEST
57	#include <test.h>	58	#include <test.h>
58	#endif /* CONFIG_TEST */	59	#endif /* CONFIG_TEST */
59		60
60	/** Kernel initialization thread.	61	/** Kernel initialization thread.
61	*	62	*
62	* kinit takes care of higher level kernel	63	* kinit takes care of higher level kernel
63	* initialization (i.e. thread creation,	64	* initialization (i.e. thread creation,
64	* userspace initialization etc.).	65	* userspace initialization etc.).
65	*	66	*
66	* @param arg Not used.	67	* @param arg Not used.
67	*/	68	*/
68	void kinit(void *arg)	69	void kinit(void *arg)
69	{	70	{
70	vm_t *m;	71	vm_t *m;
71	vm_area_t *a;	72	vm_area_t *a;
72	task_t *u;	73	task_t *u;
73	thread_t *t;	74	thread_t *t;
74	int i;	75	int i;
75		76
76	interrupts_disable();	77	interrupts_disable();
77		78
78	#ifdef CONFIG_SMP	79	#ifdef CONFIG_SMP
79	if (config.cpu_count > 1) {	80	if (config.cpu_count > 1) {
80	/*	81	/*
81	* Create the kmp thread and wait for its completion.	82	* Create the kmp thread and wait for its completion.
82	* cpu1 through cpuN-1 will come up consecutively and	83	* cpu1 through cpuN-1 will come up consecutively and
83	* not mess together with kcpulb threads.	84	* not mess together with kcpulb threads.
84	* Just a beautification.	85	* Just a beautification.
85	*/	86	*/
86	if (t = thread_create(kmp, NULL, TASK, 0)) {	87	if (t = thread_create(kmp, NULL, TASK, 0)) {
87	spinlock_lock(&t->lock);	88	spinlock_lock(&t->lock);
88	t->flags \|= X_WIRED;	89	t->flags \|= X_WIRED;
89	t->cpu = &cpus[0];	90	t->cpu = &cpus[0];
90	spinlock_unlock(&t->lock);	91	spinlock_unlock(&t->lock);
91	thread_ready(t);	92	thread_ready(t);
92	waitq_sleep(&kmp_completion_wq);	93	waitq_sleep(&kmp_completion_wq);
93	}	94	}
94	else panic("thread_create/kmp\n");	95	else panic("thread_create/kmp\n");
95	}	96	}
96	#endif /* CONFIG_SMP */	97	#endif /* CONFIG_SMP */
97	/*	98	/*
98	* Now that all CPUs are up, we can report what we've found.	99	* Now that all CPUs are up, we can report what we've found.
99	*/	100	*/
100	for (i = 0; i < config.cpu_count; i++) {	101	for (i = 0; i < config.cpu_count; i++) {
101	if (cpus[i].active)	102	if (cpus[i].active)
102	cpu_print_report(&cpus[i]);	103	cpu_print_report(&cpus[i]);
103	else	104	else
104	printf("cpu%d: not active\n", i);	105	printf("cpu%d: not active\n", i);
105	}	106	}
106		107
107	#ifdef CONFIG_SMP	108	#ifdef CONFIG_SMP
108	if (config.cpu_count > 1) {	109	if (config.cpu_count > 1) {
109	/*	110	/*
110	* For each CPU, create its load balancing thread.	111	* For each CPU, create its load balancing thread.
111	*/	112	*/
112	for (i = 0; i < config.cpu_count; i++) {	113	for (i = 0; i < config.cpu_count; i++) {
113		114
114	if (t = thread_create(kcpulb, NULL, TASK, 0)) {	115	if (t = thread_create(kcpulb, NULL, TASK, 0)) {
115	spinlock_lock(&t->lock);	116	spinlock_lock(&t->lock);
116	t->flags \|= X_WIRED;	117	t->flags \|= X_WIRED;
117	t->cpu = &cpus[i];	118	t->cpu = &cpus[i];
118	spinlock_unlock(&t->lock);	119	spinlock_unlock(&t->lock);
119	thread_ready(t);	120	thread_ready(t);
120	}	121	}
121	else panic("thread_create/kcpulb\n");	122	else panic("thread_create/kcpulb\n");
122		123
123	}	124	}
124	}	125	}
125	#endif /* CONFIG_SMP */	126	#endif /* CONFIG_SMP */
126		127
127	/*	128	/*
128	* At this point SMP, if present, is configured.	129	* At this point SMP, if present, is configured.
129	*/	130	*/
130	arch_post_smp_init();	131	arch_post_smp_init();
131		132
132	/*	133	/*
133	* Create kernel console.	134	* Create kernel console.
134	*/	135	*/
135	if (t = thread_create(kconsole, NULL, TASK, 0))	136	if (t = thread_create(kconsole, NULL, TASK, 0))
136	thread_ready(t);	137	thread_ready(t);
137	else panic("thread_create/kconsole\n");	138	else panic("thread_create/kconsole\n");
138		139
139	interrupts_enable();	140	interrupts_enable();
140		141
141	#ifdef CONFIG_USERSPACE	142	#ifdef CONFIG_USERSPACE
142	/*	143	/*
143	* Create the first user task.	144	* Create the first user task.
144	*/	145	*/
145	m = vm_create(NULL);	146	m = vm_create(NULL);
146	if (!m)	147	if (!m)
147	panic("vm_create\n");	148	panic("vm_create\n");
148	u = task_create(m);	149	u = task_create(m);
149	if (!u)	150	if (!u)
150	panic("task_create\n");	151	panic("task_create\n");
151	t = thread_create(uinit, NULL, u, THREAD_USER_STACK);	152	t = thread_create(uinit, NULL, u, THREAD_USER_STACK);
152	if (!t)	153	if (!t)
153	panic("thread_create\n");	154	panic("thread_create\n");
154		155
155	/*	156	/*
156	* Create the text vm_area and copy the userspace code there.	157	* Create the text vm_area and copy the userspace code there.
157	*/	158	*/
158	a = vm_area_create(m, VMA_TEXT, 1, UTEXT_ADDRESS);	159	a = vm_area_create(m, VMA_TEXT, 1, UTEXT_ADDRESS);
159	if (!a)	160	if (!a)
160	panic("vm_area_create: vm_text\n");	161	panic("vm_area_create: vm_text\n");
161	vm_area_map(a, m);	162	vm_area_map(a, m);
162	memcpy((void ) PA2KA(a->mapping[0]), (void ) utext, utext_size < PAGE_SIZE ? utext_size : PAGE_SIZE);	163	memcpy((void ) PA2KA(a->mapping[0]), (void ) utext, utext_size < PAGE_SIZE ? utext_size : PAGE_SIZE);
163		164
164	/*	165	/*
165	* Create the data vm_area.	166	* Create the data vm_area.
166	*/	167	*/
167	a = vm_area_create(m, VMA_STACK, 1, USTACK_ADDRESS);	168	a = vm_area_create(m, VMA_STACK, 1, USTACK_ADDRESS);
168	if (!a)	169	if (!a)
169	panic("vm_area_create: vm_stack\n");	170	panic("vm_area_create: vm_stack\n");
170	vm_area_map(a, m);	171	vm_area_map(a, m);
171		172
172	thread_ready(t);	173	thread_ready(t);
173	#endif /* CONFIG_USERSPACE */	174	#endif /* CONFIG_USERSPACE */
174		175
175	#ifdef CONFIG_TEST	176	#ifdef CONFIG_TEST
176	test();	177	test();
177	#endif /* CONFIG_TEST */	178	#endif /* CONFIG_TEST */
178		179
179	if (!stdin) {	180	if (!stdin) {
180	while (1) {	181	while (1) {
181	thread_sleep(1);	182	thread_sleep(1);
182	printf("kinit... ");	183	printf("kinit... ");
183	}	184	}
184	}	185	}
185		186
186	}	187	}
187		188

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(root)/kernel/trunk/generic/src/main/kinit.c – Rev 534 → 578