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)
{
    thread_t *t;
 
#ifdef CONFIG_USERSPACE
    vm_t *m;
    vm_area_t *a;
    task_t *u;
#endif
 
    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();
 
#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);
    if (config.init_size > 0)
        memcpy((void *) PA2KA(a->mapping[0]), (void *) config.init_addr, config.init_size < PAGE_SIZE ? config.init_size : PAGE_SIZE);
    else
        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 654	Rev 673
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 <interrupt.h>
48	#include <console/kconsole.h>	48	#include <console/kconsole.h>
49		49
50	#ifdef CONFIG_SMP	50	#ifdef CONFIG_SMP
51	#include <arch/smp/mps.h>	51	#include <arch/smp/mps.h>
52	#endif /* CONFIG_SMP */	52	#endif /* CONFIG_SMP */
53		53
54	#include <synch/waitq.h>	54	#include <synch/waitq.h>
55	#include <synch/spinlock.h>	55	#include <synch/spinlock.h>
56		56
57	#ifdef CONFIG_TEST	57	#ifdef CONFIG_TEST
58	#include <test.h>	58	#include <test.h>
59	#endif /* CONFIG_TEST */	59	#endif /* CONFIG_TEST */
60		60
61	/** Kernel initialization thread.	61	/** Kernel initialization thread.
62	*	62	*
63	* kinit takes care of higher level kernel	63	* kinit takes care of higher level kernel
64	* initialization (i.e. thread creation,	64	* initialization (i.e. thread creation,
65	* userspace initialization etc.).	65	* userspace initialization etc.).
66	*	66	*
67	* @param arg Not used.	67	* @param arg Not used.
68	*/	68	*/
69	void kinit(void *arg)	69	void kinit(void *arg)
70	{	70	{
71	thread_t *t;	71	thread_t *t;
72	int i;	-
73	#ifdef CONFIG_USERSPACE	72	#ifdef CONFIG_USERSPACE
74	vm_t *m;	73	vm_t *m;
75	vm_area_t *a;	74	vm_area_t *a;
76	task_t *u;	75	task_t *u;
77	#endif	76	#endif
78		77
79	interrupts_disable();	78	interrupts_disable();
80		79
81	#ifdef CONFIG_SMP	80	#ifdef CONFIG_SMP
82	if (config.cpu_count > 1) {	81	if (config.cpu_count > 1) {
83	/*	82	/*
84	* Create the kmp thread and wait for its completion.	83	* Create the kmp thread and wait for its completion.
85	* cpu1 through cpuN-1 will come up consecutively and	84	* cpu1 through cpuN-1 will come up consecutively and
86	* not mess together with kcpulb threads.	85	* not mess together with kcpulb threads.
87	* Just a beautification.	86	* Just a beautification.
88	*/	87	*/
89	if ((t = thread_create(kmp, NULL, TASK, 0))) {	88	if ((t = thread_create(kmp, NULL, TASK, 0))) {
90	spinlock_lock(&t->lock);	89	spinlock_lock(&t->lock);
91	t->flags \|= X_WIRED;	90	t->flags \|= X_WIRED;
92	t->cpu = &cpus[0];	91	t->cpu = &cpus[0];
93	spinlock_unlock(&t->lock);	92	spinlock_unlock(&t->lock);
94	thread_ready(t);	93	thread_ready(t);
95	waitq_sleep(&kmp_completion_wq);	94	waitq_sleep(&kmp_completion_wq);
96	}	95	}
97	else panic("thread_create/kmp\n");	96	else panic("thread_create/kmp\n");
98	}	97	}
99	#endif /* CONFIG_SMP */	98	#endif /* CONFIG_SMP */
100	/*	99	/*
101	* Now that all CPUs are up, we can report what we've found.	100	* Now that all CPUs are up, we can report what we've found.
102	*/	101	*/
103	for (i = 0; i < config.cpu_count; i++) {	-
104	if (cpus[i].active)	102	cpu_list();
105	cpu_print_report(&cpus[i]);	-
106	else	-
107	printf("cpu%d: not active\n", i);	-
108	}	-
109		103
110	#ifdef CONFIG_SMP	104	#ifdef CONFIG_SMP
111	if (config.cpu_count > 1) {	105	if (config.cpu_count > 1) {
-		106	int i;
-		107
112	/*	108	/*
113	* For each CPU, create its load balancing thread.	109	* For each CPU, create its load balancing thread.
114	*/	110	*/
115	for (i = 0; i < config.cpu_count; i++) {	111	for (i = 0; i < config.cpu_count; i++) {
116		112
117	if ((t = thread_create(kcpulb, NULL, TASK, 0))) {	113	if ((t = thread_create(kcpulb, NULL, TASK, 0))) {
118	spinlock_lock(&t->lock);	114	spinlock_lock(&t->lock);
119	t->flags \|= X_WIRED;	115	t->flags \|= X_WIRED;
120	t->cpu = &cpus[i];	116	t->cpu = &cpus[i];
121	spinlock_unlock(&t->lock);	117	spinlock_unlock(&t->lock);
122	thread_ready(t);	118	thread_ready(t);
123	}	119	}
124	else panic("thread_create/kcpulb\n");	120	else panic("thread_create/kcpulb\n");
125		121
126	}	122	}
127	}	123	}
128	#endif /* CONFIG_SMP */	124	#endif /* CONFIG_SMP */
129		125
130	/*	126	/*
131	* At this point SMP, if present, is configured.	127	* At this point SMP, if present, is configured.
132	*/	128	*/
133	arch_post_smp_init();	129	arch_post_smp_init();
134		130
135	/*	131	/*
136	* Create kernel console.	132	* Create kernel console.
137	*/	133	*/
138	if ((t = thread_create(kconsole, "kconsole", TASK, 0)))	134	if ((t = thread_create(kconsole, "kconsole", TASK, 0)))
139	thread_ready(t);	135	thread_ready(t);
140	else panic("thread_create/kconsole\n");	136	else panic("thread_create/kconsole\n");
141		137
142	interrupts_enable();	138	interrupts_enable();
143		139
144	#ifdef CONFIG_USERSPACE	140	#ifdef CONFIG_USERSPACE
145	/*	141	/*
146	* Create the first user task.	142	* Create the first user task.
147	*/	143	*/
148	m = vm_create(NULL);	144	m = vm_create(NULL);
149	if (!m)	145	if (!m)
150	panic("vm_create\n");	146	panic("vm_create\n");
151	u = task_create(m);	147	u = task_create(m);
152	if (!u)	148	if (!u)
153	panic("task_create\n");	149	panic("task_create\n");
154	t = thread_create(uinit, NULL, u, THREAD_USER_STACK);	150	t = thread_create(uinit, NULL, u, THREAD_USER_STACK);
155	if (!t)	151	if (!t)
156	panic("thread_create\n");	152	panic("thread_create\n");
157		153
158	/*	154	/*
159	* Create the text vm_area and copy the userspace code there.	155	* Create the text vm_area and copy the userspace code there.
160	*/	156	*/
161	a = vm_area_create(m, VMA_TEXT, 1, UTEXT_ADDRESS);	157	a = vm_area_create(m, VMA_TEXT, 1, UTEXT_ADDRESS);
162	if (!a)	158	if (!a)
163	panic("vm_area_create: vm_text\n");	159	panic("vm_area_create: vm_text\n");
164	vm_area_map(a, m);	160	vm_area_map(a, m);
165	if (config.init_size > 0)	161	if (config.init_size > 0)
166	memcpy((void ) PA2KA(a->mapping[0]), (void ) config.init_addr, config.init_size < PAGE_SIZE ? config.init_size : PAGE_SIZE);	162	memcpy((void ) PA2KA(a->mapping[0]), (void ) config.init_addr, config.init_size < PAGE_SIZE ? config.init_size : PAGE_SIZE);
167	else	163	else
168	memcpy((void ) PA2KA(a->mapping[0]), (void ) utext, utext_size < PAGE_SIZE ? utext_size : PAGE_SIZE);	164	memcpy((void ) PA2KA(a->mapping[0]), (void ) utext, utext_size < PAGE_SIZE ? utext_size : PAGE_SIZE);
169		165
170	/*	166	/*
171	* Create the data vm_area.	167	* Create the data vm_area.
172	*/	168	*/
173	a = vm_area_create(m, VMA_STACK, 1, USTACK_ADDRESS);	169	a = vm_area_create(m, VMA_STACK, 1, USTACK_ADDRESS);
174	if (!a)	170	if (!a)
175	panic("vm_area_create: vm_stack\n");	171	panic("vm_area_create: vm_stack\n");
176	vm_area_map(a, m);	172	vm_area_map(a, m);
177		173
178	thread_ready(t);	174	thread_ready(t);
179	#endif /* CONFIG_USERSPACE */	175	#endif /* CONFIG_USERSPACE */
180		176
181	#ifdef CONFIG_TEST	177	#ifdef CONFIG_TEST
182	test();	178	test();
183	#endif /* CONFIG_TEST */	179	#endif /* CONFIG_TEST */
184		180
185	if (!stdin) {	181	if (!stdin) {
186	while (1) {	182	while (1) {
187	thread_sleep(1);	183	thread_sleep(1);
188	printf("kinit... ");	184	printf("kinit... ");
189	}	185	}
190	}	186	}
191		187
192	}	188	}
193		189

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(root)/kernel/trunk/generic/src/main/kinit.c – Rev 654 → 673