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/as.h>
#include <mm/frame.h>
#include <print.h>
#include <memstr.h>
#include <console/console.h>
#include <interrupt.h>
#include <console/kconsole.h>
#include <elf.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;
    as_t *as;
    as_area_t *a;
    int rc;
    task_t *u;
 
    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");
       
        as = as_create(0);
        if (!as)
            panic("as_create\n");
 
        rc = elf_load((elf_header_t *) config.init_addr, as);
        if (rc != EE_OK) {
            printf("elf_load failed: %s\n", elf_error(rc));
        } else {
            u = task_create(as);
            if (!u)
                panic("task_create\n");
            t = thread_create(uinit, (void *)((elf_header_t *) config.init_addr)->e_entry, u, THREAD_USER_STACK);
            if (!t)
                panic("thread_create\n");
       
            /*
             * 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);
        }
    }
 
#ifdef CONFIG_TEST
    test();
#endif /* CONFIG_TEST */
 
    if (!stdin) {
        while (1) {
            thread_sleep(1);
            printf("kinit... ");
        }
    }
 
}
 

Rev 955	Rev 965
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/as.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	#include <elf.h>	49	#include <elf.h>
-		50	#include <ipc/ns.h>
50		51
51	#ifdef CONFIG_SMP	52	#ifdef CONFIG_SMP
52	#include <arch/smp/mps.h>	53	#include <arch/smp/mps.h>
53	#endif /* CONFIG_SMP */	54	#endif /* CONFIG_SMP */
54		55
55	#include <synch/waitq.h>	56	#include <synch/waitq.h>
56	#include <synch/spinlock.h>	57	#include <synch/spinlock.h>
57		58
58	#ifdef CONFIG_TEST	59	#ifdef CONFIG_TEST
59	#include <test.h>	60	#include <test.h>
60	#endif /* CONFIG_TEST */	61	#endif /* CONFIG_TEST */
61		62
62	/** Kernel initialization thread.	63	/** Kernel initialization thread.
63	*	64	*
64	* kinit takes care of higher level kernel	65	* kinit takes care of higher level kernel
65	* initialization (i.e. thread creation,	66	* initialization (i.e. thread creation,
66	* userspace initialization etc.).	67	* userspace initialization etc.).
67	*	68	*
68	* @param arg Not used.	69	* @param arg Not used.
69	*/	70	*/
70	void kinit(void *arg)	71	void kinit(void *arg)
71	{	72	{
72	thread_t *t;	73	thread_t *t;
73	as_t *as;	74	as_t *as;
74	as_area_t *a;	75	as_area_t *a;
75	int rc;	76	int rc;
76	task_t *u;	77	task_t *u;
77		78
78	interrupts_disable();	79	interrupts_disable();
79		80
80	#ifdef CONFIG_SMP	81	#ifdef CONFIG_SMP
81	if (config.cpu_count > 1) {	82	if (config.cpu_count > 1) {
82	/*	83	/*
83	* Create the kmp thread and wait for its completion.	84	* Create the kmp thread and wait for its completion.
84	* cpu1 through cpuN-1 will come up consecutively and	85	* cpu1 through cpuN-1 will come up consecutively and
85	* not mess together with kcpulb threads.	86	* not mess together with kcpulb threads.
86	* Just a beautification.	87	* Just a beautification.
87	*/	88	*/
88	if ((t = thread_create(kmp, NULL, TASK, 0))) {	89	if ((t = thread_create(kmp, NULL, TASK, 0))) {
89	spinlock_lock(&t->lock);	90	spinlock_lock(&t->lock);
90	t->flags \|= X_WIRED;	91	t->flags \|= X_WIRED;
91	t->cpu = &cpus[0];	92	t->cpu = &cpus[0];
92	spinlock_unlock(&t->lock);	93	spinlock_unlock(&t->lock);
93	thread_ready(t);	94	thread_ready(t);
94	waitq_sleep(&kmp_completion_wq);	95	waitq_sleep(&kmp_completion_wq);
95	}	96	}
96	else panic("thread_create/kmp\n");	97	else panic("thread_create/kmp\n");
97	}	98	}
98	#endif /* CONFIG_SMP */	99	#endif /* CONFIG_SMP */
99	/*	100	/*
100	* Now that all CPUs are up, we can report what we've found.	101	* Now that all CPUs are up, we can report what we've found.
101	*/	102	*/
102	cpu_list();	103	cpu_list();
103		104
104	#ifdef CONFIG_SMP	105	#ifdef CONFIG_SMP
105	if (config.cpu_count > 1) {	106	if (config.cpu_count > 1) {
106	int i;	107	int i;
107		108
108	/*	109	/*
109	* For each CPU, create its load balancing thread.	110	* For each CPU, create its load balancing thread.
110	*/	111	*/
111	for (i = 0; i < config.cpu_count; i++) {	112	for (i = 0; i < config.cpu_count; i++) {
112		113
113	if ((t = thread_create(kcpulb, NULL, TASK, 0))) {	114	if ((t = thread_create(kcpulb, NULL, TASK, 0))) {
114	spinlock_lock(&t->lock);	115	spinlock_lock(&t->lock);
115	t->flags \|= X_WIRED;	116	t->flags \|= X_WIRED;
116	t->cpu = &cpus[i];	117	t->cpu = &cpus[i];
117	spinlock_unlock(&t->lock);	118	spinlock_unlock(&t->lock);
118	thread_ready(t);	119	thread_ready(t);
119	}	120	}
120	else panic("thread_create/kcpulb\n");	121	else panic("thread_create/kcpulb\n");
121		122
122	}	123	}
123	}	124	}
124	#endif /* CONFIG_SMP */	125	#endif /* CONFIG_SMP */
125		126
126	/*	127	/*
127	* At this point SMP, if present, is configured.	128	* At this point SMP, if present, is configured.
128	*/	129	*/
129	arch_post_smp_init();	130	arch_post_smp_init();
130		131
131	/*	132	/*
132	* Create kernel console.	133	* Create kernel console.
133	*/	134	*/
134	if ((t = thread_create(kconsole, "kconsole", TASK, 0)))	135	if ((t = thread_create(kconsole, "kconsole", TASK, 0)))
135	thread_ready(t);	136	thread_ready(t);
136	else	137	else
137	panic("thread_create/kconsole\n");	138	panic("thread_create/kconsole\n");
138		139
139	interrupts_enable();	140	interrupts_enable();
140		141
141	ipc_create_phonecompany();	142	/* Initialize name service */
-		143	ns_start();
142		144
143	if (config.init_size > 0) {	145	if (config.init_size > 0) {
144	/*	146	/*
145	* Create the first user task.	147	* Create the first user task.
146	*/	148	*/
147		149
148	if (config.init_addr % FRAME_SIZE)	150	if (config.init_addr % FRAME_SIZE)
149	panic("config.init_addr is not frame aligned");	151	panic("config.init_addr is not frame aligned");
150		152
151	as = as_create(0);	153	as = as_create(0);
152	if (!as)	154	if (!as)
153	panic("as_create\n");	155	panic("as_create\n");
154		156
155	rc = elf_load((elf_header_t *) config.init_addr, as);	157	rc = elf_load((elf_header_t *) config.init_addr, as);
156	if (rc != EE_OK) {	158	if (rc != EE_OK) {
157	printf("elf_load failed: %s\n", elf_error(rc));	159	printf("elf_load failed: %s\n", elf_error(rc));
158	} else {	160	} else {
159	u = task_create(as);	161	u = task_create(as);
160	if (!u)	162	if (!u)
161	panic("task_create\n");	163	panic("task_create\n");
162	t = thread_create(uinit, (void )((elf_header_t ) config.init_addr)->e_entry, u, THREAD_USER_STACK);	164	t = thread_create(uinit, (void )((elf_header_t ) config.init_addr)->e_entry, u, THREAD_USER_STACK);
163	if (!t)	165	if (!t)
164	panic("thread_create\n");	166	panic("thread_create\n");
165		167
166	/*	168	/*
167	* Create the data as_area.	169	* Create the data as_area.
168	*/	170	*/
169	a = as_area_create(as, AS_AREA_STACK, 1, USTACK_ADDRESS);	171	a = as_area_create(as, AS_AREA_STACK, 1, USTACK_ADDRESS);
170	if (!a)	172	if (!a)
171	panic("as_area_create: stack\n");	173	panic("as_area_create: stack\n");
172		174
173	thread_ready(t);	175	thread_ready(t);
174	}	176	}
175	}	177	}
176		178
177	#ifdef CONFIG_TEST	179	#ifdef CONFIG_TEST
178	test();	180	test();
179	#endif /* CONFIG_TEST */	181	#endif /* CONFIG_TEST */
180		182
181	if (!stdin) {	183	if (!stdin) {
182	while (1) {	184	while (1) {
183	thread_sleep(1);	185	thread_sleep(1);
184	printf("kinit... ");	186	printf("kinit... ");
185	}	187	}
186	}	188	}
187		189
188	}	190	}
189		191

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/generic/src/main/kinit.c @ 955 – Rev 955 → 965