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.
 */
 
/**
 * @file    kinit.c
 * @brief   Kernel initialization thread.
 *
 * This file contains kinit kernel thread which carries out
 * high level system initialization.
 *
 * This file is responsible for finishing SMP configuration
 * and creation of userspace init tasks.
 */
 
#include <main/kinit.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 <security/cap.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;
    task_t *utask;
 
    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, "kmp"))) {
            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, "kcpulb"))) {
                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, "kconsole")))
        thread_ready(t);
    else
        panic("thread_create/kconsole\n");
 
    interrupts_enable();
   
    count_t i;
    for (i = 0; i < init.cnt; i++) {
        /*
         * Run user tasks.
         */
       
        if (init.tasks[i].addr % FRAME_SIZE)
            panic("init[%d].addr is not frame aligned", i);
 
        utask = task_run_program((void *) init.tasks[i].addr, "USPACE");
        if (utask) {
            /*
             * Set capabilities to init userspace tasks.
             */
            cap_set(utask, CAP_CAP | CAP_MEM_MANAGER | CAP_IO_MANAGER);
           
            if (!ipc_phone_0)
                ipc_phone_0 = &utask->answerbox;
        } else
            printf("Init task %zd not started.\n", i);
    }
 
#ifdef CONFIG_TEST
    test();
#endif /* CONFIG_TEST */
 
    if (!stdin) {
        while (1) {
            thread_sleep(1);
            printf("kinit... ");
        }
    }
 
}
 

Rev 1196	Rev 1248
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	/**
-		30	* @file kinit.c
-		31	* @brief Kernel initialization thread.
-		32	*
-		33	* This file contains kinit kernel thread which carries out
-		34	* high level system initialization.
-		35	*
-		36	* This file is responsible for finishing SMP configuration
-		37	* and creation of userspace init tasks.
-		38	*/
-		39
29	#include <main/kinit.h>	40	#include <main/kinit.h>
30	#include <config.h>	41	#include <config.h>
31	#include <arch.h>	42	#include <arch.h>
32	#include <proc/scheduler.h>	43	#include <proc/scheduler.h>
33	#include <proc/task.h>	44	#include <proc/task.h>
34	#include <proc/thread.h>	45	#include <proc/thread.h>
35	#include <panic.h>	46	#include <panic.h>
36	#include <func.h>	47	#include <func.h>
37	#include <cpu.h>	48	#include <cpu.h>
38	#include <arch/asm.h>	49	#include <arch/asm.h>
39	#include <mm/page.h>	50	#include <mm/page.h>
40	#include <arch/mm/page.h>	51	#include <arch/mm/page.h>
41	#include <mm/as.h>	52	#include <mm/as.h>
42	#include <mm/frame.h>	53	#include <mm/frame.h>
43	#include <print.h>	54	#include <print.h>
44	#include <memstr.h>	55	#include <memstr.h>
45	#include <console/console.h>	56	#include <console/console.h>
46	#include <interrupt.h>	57	#include <interrupt.h>
47	#include <console/kconsole.h>	58	#include <console/kconsole.h>
48	#include <security/cap.h>	59	#include <security/cap.h>
49		60
50	#ifdef CONFIG_SMP	61	#ifdef CONFIG_SMP
51	#include <arch/smp/mps.h>	62	#include <arch/smp/mps.h>
52	#endif /* CONFIG_SMP */	63	#endif /* CONFIG_SMP */
53		64
54	#include <synch/waitq.h>	65	#include <synch/waitq.h>
55	#include <synch/spinlock.h>	66	#include <synch/spinlock.h>
56		67
57	#ifdef CONFIG_TEST	68	#ifdef CONFIG_TEST
58	#include <test.h>	69	#include <test.h>
59	#endif /* CONFIG_TEST */	70	#endif /* CONFIG_TEST */
60		71
61	/** Kernel initialization thread.	72	/** Kernel initialization thread.
62	*	73	*
63	* kinit takes care of higher level kernel	74	* kinit takes care of higher level kernel
64	* initialization (i.e. thread creation,	75	* initialization (i.e. thread creation,
65	* userspace initialization etc.).	76	* userspace initialization etc.).
66	*	77	*
67	* @param arg Not used.	78	* @param arg Not used.
68	*/	79	*/
69	void kinit(void *arg)	80	void kinit(void *arg)
70	{	81	{
71	thread_t *t;	82	thread_t *t;
72	task_t *utask;	83	task_t *utask;
73		84
74	interrupts_disable();	85	interrupts_disable();
75		86
76	#ifdef CONFIG_SMP	87	#ifdef CONFIG_SMP
77	if (config.cpu_count > 1) {	88	if (config.cpu_count > 1) {
78	/*	89	/*
79	* Create the kmp thread and wait for its completion.	90	* Create the kmp thread and wait for its completion.
80	* cpu1 through cpuN-1 will come up consecutively and	91	* cpu1 through cpuN-1 will come up consecutively and
81	* not mess together with kcpulb threads.	92	* not mess together with kcpulb threads.
82	* Just a beautification.	93	* Just a beautification.
83	*/	94	*/
84	if ((t = thread_create(kmp, NULL, TASK, 0, "kmp"))) {	95	if ((t = thread_create(kmp, NULL, TASK, 0, "kmp"))) {
85	spinlock_lock(&t->lock);	96	spinlock_lock(&t->lock);
86	t->flags \|= X_WIRED;	97	t->flags \|= X_WIRED;
87	t->cpu = &cpus[0];	98	t->cpu = &cpus[0];
88	spinlock_unlock(&t->lock);	99	spinlock_unlock(&t->lock);
89	thread_ready(t);	100	thread_ready(t);
90	waitq_sleep(&kmp_completion_wq);	101	waitq_sleep(&kmp_completion_wq);
91	}	102	}
92	else panic("thread_create/kmp\n");	103	else panic("thread_create/kmp\n");
93	}	104	}
94	#endif /* CONFIG_SMP */	105	#endif /* CONFIG_SMP */
95	/*	106	/*
96	* Now that all CPUs are up, we can report what we've found.	107	* Now that all CPUs are up, we can report what we've found.
97	*/	108	*/
98	cpu_list();	109	cpu_list();
99		110
100	#ifdef CONFIG_SMP	111	#ifdef CONFIG_SMP
101	if (config.cpu_count > 1) {	112	if (config.cpu_count > 1) {
102	int i;	113	int i;
103		114
104	/*	115	/*
105	* For each CPU, create its load balancing thread.	116	* For each CPU, create its load balancing thread.
106	*/	117	*/
107	for (i = 0; i < config.cpu_count; i++) {	118	for (i = 0; i < config.cpu_count; i++) {
108		119
109	if ((t = thread_create(kcpulb, NULL, TASK, 0, "kcpulb"))) {	120	if ((t = thread_create(kcpulb, NULL, TASK, 0, "kcpulb"))) {
110	spinlock_lock(&t->lock);	121	spinlock_lock(&t->lock);
111	t->flags \|= X_WIRED;	122	t->flags \|= X_WIRED;
112	t->cpu = &cpus[i];	123	t->cpu = &cpus[i];
113	spinlock_unlock(&t->lock);	124	spinlock_unlock(&t->lock);
114	thread_ready(t);	125	thread_ready(t);
115	}	126	}
116	else panic("thread_create/kcpulb\n");	127	else panic("thread_create/kcpulb\n");
117		128
118	}	129	}
119	}	130	}
120	#endif /* CONFIG_SMP */	131	#endif /* CONFIG_SMP */
121		132
122	/*	133	/*
123	* At this point SMP, if present, is configured.	134	* At this point SMP, if present, is configured.
124	*/	135	*/
125	arch_post_smp_init();	136	arch_post_smp_init();
126		137
127	/*	138	/*
128	* Create kernel console.	139	* Create kernel console.
129	*/	140	*/
130	if ((t = thread_create(kconsole, "kconsole", TASK, 0, "kconsole")))	141	if ((t = thread_create(kconsole, "kconsole", TASK, 0, "kconsole")))
131	thread_ready(t);	142	thread_ready(t);
132	else	143	else
133	panic("thread_create/kconsole\n");	144	panic("thread_create/kconsole\n");
134		145
135	interrupts_enable();	146	interrupts_enable();
136		147
137	count_t i;	148	count_t i;
138	for (i = 0; i < init.cnt; i++) {	149	for (i = 0; i < init.cnt; i++) {
139	/*	150	/*
140	* Run user tasks.	151	* Run user tasks.
141	*/	152	*/
142		153
143	if (init.tasks[i].addr % FRAME_SIZE)	154	if (init.tasks[i].addr % FRAME_SIZE)
144	panic("init[%d].addr is not frame aligned", i);	155	panic("init[%d].addr is not frame aligned", i);
145		156
146	utask = task_run_program((void *) init.tasks[i].addr, "USPACE");	157	utask = task_run_program((void *) init.tasks[i].addr, "USPACE");
147	if (utask) {	158	if (utask) {
148	/*	159	/*
149	* Set capabilities to init userspace tasks.	160	* Set capabilities to init userspace tasks.
150	*/	161	*/
151	cap_set(utask, CAP_CAP \| CAP_MEM_MANAGER \| CAP_IO_MANAGER);	162	cap_set(utask, CAP_CAP \| CAP_MEM_MANAGER \| CAP_IO_MANAGER);
152		163
153	if (!ipc_phone_0)	164	if (!ipc_phone_0)
154	ipc_phone_0 = &utask->answerbox;	165	ipc_phone_0 = &utask->answerbox;
155	} else	166	} else
156	printf("Init task %zd not started.\n", i);	167	printf("Init task %zd not started.\n", i);
157	}	168	}
158		169
159	#ifdef CONFIG_TEST	170	#ifdef CONFIG_TEST
160	test();	171	test();
161	#endif /* CONFIG_TEST */	172	#endif /* CONFIG_TEST */
162		173
163	if (!stdin) {	174	if (!stdin) {
164	while (1) {	175	while (1) {
165	thread_sleep(1);	176	thread_sleep(1);
166	printf("kinit... ");	177	printf("kinit... ");
167	}	178	}
168	}	179	}
169		180
170	}	181	}
171		182

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/generic/src/main/kinit.c @ 1662 – Rev 1196 → 1248