WebSVN – HelenOS – Diff – /branches/dynload/kernel/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/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;
#ifdef CONFIG_USERSPACE
    as_t *as;
    as_area_t *a;
    __address frame;
    index_t pfn[1];
    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.
     */
    as = as_create(NULL);
    if (!as)
        panic("as_create\n");
    u = task_create(as);
    if (!u)
        panic("task_create\n");
    t = thread_create(uinit, NULL, u, THREAD_USER_STACK);
    if (!t)
        panic("thread_create\n");
 
    /*
     * Create the text as_area and copy the userspace code there.
     */
    a = as_area_create(as, AS_AREA_TEXT, 1, UTEXT_ADDRESS);
    if (!a)
        panic("as_area_create: text\n");
 
    frame = frame_alloc(0, ONE_FRAME, NULL);
 
    if (config.init_size > 0)
        memcpy((void *) PA2KA(frame), (void *) config.init_addr, config.init_size < PAGE_SIZE ? config.init_size : PAGE_SIZE);
    else
        memcpy((void *) PA2KA(frame), (void *) utext, utext_size < PAGE_SIZE ? utext_size : PAGE_SIZE);
   
    pfn[0] = frame / FRAME_SIZE;
    as_area_load_mapping(a, pfn);
 
    /*
     * Create the data as_area.
     */
    a = as_area_create(as, AS_AREA_STACK, 1, USTACK_ADDRESS);
    if (!a)
        panic("as_area_create: stack\n");
 
   
    thread_ready(t);
#endif /* CONFIG_USERSPACE */
 
#ifdef CONFIG_TEST
    test();
#endif /* CONFIG_TEST */
 
    if (!stdin) {
        while (1) {
            thread_sleep(1);
            printf("kinit... ");
        }
    }
 
}
 

Rev 673	Rev 703
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/as.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	#ifdef CONFIG_USERSPACE	72	#ifdef CONFIG_USERSPACE
73	vm_t *m;	73	as_t *as;
74	vm_area_t *a;	74	as_area_t *a;
-		75	__address frame;
-		76	index_t pfn[1];
75	task_t *u;	77	task_t *u;
76	#endif	78	#endif
77		79
78	interrupts_disable();	80	interrupts_disable();
79		81
80	#ifdef CONFIG_SMP	82	#ifdef CONFIG_SMP
81	if (config.cpu_count > 1) {	83	if (config.cpu_count > 1) {
82	/*	84	/*
83	* Create the kmp thread and wait for its completion.	85	* Create the kmp thread and wait for its completion.
84	* cpu1 through cpuN-1 will come up consecutively and	86	* cpu1 through cpuN-1 will come up consecutively and
85	* not mess together with kcpulb threads.	87	* not mess together with kcpulb threads.
86	* Just a beautification.	88	* Just a beautification.
87	*/	89	*/
88	if ((t = thread_create(kmp, NULL, TASK, 0))) {	90	if ((t = thread_create(kmp, NULL, TASK, 0))) {
89	spinlock_lock(&t->lock);	91	spinlock_lock(&t->lock);
90	t->flags \|= X_WIRED;	92	t->flags \|= X_WIRED;
91	t->cpu = &cpus[0];	93	t->cpu = &cpus[0];
92	spinlock_unlock(&t->lock);	94	spinlock_unlock(&t->lock);
93	thread_ready(t);	95	thread_ready(t);
94	waitq_sleep(&kmp_completion_wq);	96	waitq_sleep(&kmp_completion_wq);
95	}	97	}
96	else panic("thread_create/kmp\n");	98	else panic("thread_create/kmp\n");
97	}	99	}
98	#endif /* CONFIG_SMP */	100	#endif /* CONFIG_SMP */
99	/*	101	/*
100	* Now that all CPUs are up, we can report what we've found.	102	* Now that all CPUs are up, we can report what we've found.
101	*/	103	*/
102	cpu_list();	104	cpu_list();
103		105
104	#ifdef CONFIG_SMP	106	#ifdef CONFIG_SMP
105	if (config.cpu_count > 1) {	107	if (config.cpu_count > 1) {
106	int i;	108	int i;
107		109
108	/*	110	/*
109	* For each CPU, create its load balancing thread.	111	* For each CPU, create its load balancing thread.
110	*/	112	*/
111	for (i = 0; i < config.cpu_count; i++) {	113	for (i = 0; i < config.cpu_count; i++) {
112		114
113	if ((t = thread_create(kcpulb, NULL, TASK, 0))) {	115	if ((t = thread_create(kcpulb, NULL, TASK, 0))) {
114	spinlock_lock(&t->lock);	116	spinlock_lock(&t->lock);
115	t->flags \|= X_WIRED;	117	t->flags \|= X_WIRED;
116	t->cpu = &cpus[i];	118	t->cpu = &cpus[i];
117	spinlock_unlock(&t->lock);	119	spinlock_unlock(&t->lock);
118	thread_ready(t);	120	thread_ready(t);
119	}	121	}
120	else panic("thread_create/kcpulb\n");	122	else panic("thread_create/kcpulb\n");
121		123
122	}	124	}
123	}	125	}
124	#endif /* CONFIG_SMP */	126	#endif /* CONFIG_SMP */
125		127
126	/*	128	/*
127	* At this point SMP, if present, is configured.	129	* At this point SMP, if present, is configured.
128	*/	130	*/
129	arch_post_smp_init();	131	arch_post_smp_init();
130		132
131	/*	133	/*
132	* Create kernel console.	134	* Create kernel console.
133	*/	135	*/
134	if ((t = thread_create(kconsole, "kconsole", TASK, 0)))	136	if ((t = thread_create(kconsole, "kconsole", TASK, 0)))
135	thread_ready(t);	137	thread_ready(t);
136	else panic("thread_create/kconsole\n");	138	else panic("thread_create/kconsole\n");
137		139
138	interrupts_enable();	140	interrupts_enable();
139		141
140	#ifdef CONFIG_USERSPACE	142	#ifdef CONFIG_USERSPACE
141	/*	143	/*
142	* Create the first user task.	144	* Create the first user task.
143	*/	145	*/
144	m = vm_create(NULL);	146	as = as_create(NULL);
145	if (!m)	147	if (!as)
146	panic("vm_create\n");	148	panic("as_create\n");
147	u = task_create(m);	149	u = task_create(as);
148	if (!u)	150	if (!u)
149	panic("task_create\n");	151	panic("task_create\n");
150	t = thread_create(uinit, NULL, u, THREAD_USER_STACK);	152	t = thread_create(uinit, NULL, u, THREAD_USER_STACK);
151	if (!t)	153	if (!t)
152	panic("thread_create\n");	154	panic("thread_create\n");
153		155
154	/*	156	/*
155	* Create the text vm_area and copy the userspace code there.	157	* Create the text as_area and copy the userspace code there.
156	*/	158	*/
157	a = vm_area_create(m, VMA_TEXT, 1, UTEXT_ADDRESS);	159	a = as_area_create(as, AS_AREA_TEXT, 1, UTEXT_ADDRESS);
158	if (!a)	160	if (!a)
159	panic("vm_area_create: vm_text\n");	161	panic("as_area_create: text\n");
-		162
160	vm_area_map(a, m);	163	frame = frame_alloc(0, ONE_FRAME, NULL);
-		164
161	if (config.init_size > 0)	165	if (config.init_size > 0)
162	memcpy((void ) PA2KA(a->mapping[0]), (void ) config.init_addr, config.init_size < PAGE_SIZE ? config.init_size : PAGE_SIZE);	166	memcpy((void ) PA2KA(frame), (void ) config.init_addr, config.init_size < PAGE_SIZE ? config.init_size : PAGE_SIZE);
163	else	167	else
164	memcpy((void ) PA2KA(a->mapping[0]), (void ) utext, utext_size < PAGE_SIZE ? utext_size : PAGE_SIZE);	168	memcpy((void ) PA2KA(frame), (void ) utext, utext_size < PAGE_SIZE ? utext_size : PAGE_SIZE);
-		169
-		170	pfn[0] = frame / FRAME_SIZE;
-		171	as_area_load_mapping(a, pfn);
165		172
166	/*	173	/*
167	* Create the data vm_area.	174	* Create the data as_area.
168	*/	175	*/
169	a = vm_area_create(m, VMA_STACK, 1, USTACK_ADDRESS);	176	a = as_area_create(as, AS_AREA_STACK, 1, USTACK_ADDRESS);
170	if (!a)	177	if (!a)
171	panic("vm_area_create: vm_stack\n");	178	panic("as_area_create: stack\n");
172	vm_area_map(a, m);	-
173		179
174	thread_ready(t);	180	thread_ready(t);
175	#endif /* CONFIG_USERSPACE */	181	#endif /* CONFIG_USERSPACE */
176		182
177	#ifdef CONFIG_TEST	183	#ifdef CONFIG_TEST
178	test();	184	test();
179	#endif /* CONFIG_TEST */	185	#endif /* CONFIG_TEST */
180		186
181	if (!stdin) {	187	if (!stdin) {
182	while (1) {	188	while (1) {
183	thread_sleep(1);	189	thread_sleep(1);
184	printf("kinit... ");	190	printf("kinit... ");
185	}	191	}
186	}	192	}
187		193
188	}	194	}
189		195

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(root)/branches/dynload/kernel/generic/src/main/kinit.c @ 4339 – Rev 673 → 703