WebSVN – HelenOS – Diff – /trunk/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.
 */
 
/** @addtogroup main
 * @{
 */
 
/**
 * @file
 * @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>
#include <lib/rd.h>
#include <ipc/ipc.h>
 
#ifdef CONFIG_SMP
#include <smp/smp.h>
#endif /* CONFIG_SMP */
 
#include <synch/waitq.h>
#include <synch/spinlock.h>
 
/** 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;
 
    /*
     * Detach kinit as nobody will call thread_join_timeout() on it.
     */
    thread_detach(THREAD);
 
    interrupts_disable();
 
#ifdef CONFIG_SMP           
    if (config.cpu_count > 1) {
        waitq_initialize(&ap_completion_wq);
        /*
         * 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, THREAD_FLAG_WIRED,
            "kmp", true))) {
            spinlock_lock(&t->lock);
            t->cpu = &cpus[0];
            spinlock_unlock(&t->lock);
            thread_ready(t);
        } else
            panic("thread_create/kmp\n");
        thread_join(t);
        thread_detach(t);
    }
#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) {
        count_t i;
       
        /*
         * For each CPU, create its load balancing thread.
         */
        for (i = 0; i < config.cpu_count; i++) {
 
            if ((t = thread_create(kcpulb, NULL, TASK,
                THREAD_FLAG_WIRED, "kcpulb", true))) {
                spinlock_lock(&t->lock);           
                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.
     */
    t = thread_create(kconsole, (void *) "kconsole", TASK, 0, "kconsole", false);
    if (t)
        thread_ready(t);
    else
        panic("thread_create/kconsole\n");
 
    interrupts_enable();
 
    count_t i;
    for (i = 0; i < init.cnt; i++) {
        /*
         * Run user tasks, load RAM disk images.
         */
       
        if (init.tasks[i].addr % FRAME_SIZE) {
            printf("init[%d].addr is not frame aligned", i);
            continue;
        }
 
        task_t *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 | CAP_PREEMPT_CONTROL | CAP_IRQ_REG);
           
            if (!ipc_phone_0)
                ipc_phone_0 = &utask->answerbox;
        } else {
            int rd = init_rd((rd_header *) init.tasks[i].addr,
                init.tasks[i].size);
           
            if (rd != RE_OK)
                printf("Init binary %zd not used, error code %d.\n", i, rd);
        }
    }
 
 
    if (!stdin) {
        while (1) {
            thread_sleep(1);
            printf("kinit... ");
        }
    }
}
 
/** @}
 */
 

Rev 2223	Rev 2445
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	/** @addtogroup main	29	/** @addtogroup main
30	* @{	30	* @{
31	*/	31	*/
32		32
33	/**	33	/**
34	* @file	34	* @file
35	* @brief Kernel initialization thread.	35	* @brief Kernel initialization thread.
36	*	36	*
37	* This file contains kinit kernel thread which carries out	37	* This file contains kinit kernel thread which carries out
38	* high level system initialization.	38	* high level system initialization.
39	*	39	*
40	* This file is responsible for finishing SMP configuration	40	* This file is responsible for finishing SMP configuration
41	* and creation of userspace init tasks.	41	* and creation of userspace init tasks.
42	*/	42	*/
43		43
44	#include <main/kinit.h>	44	#include <main/kinit.h>
45	#include <config.h>	45	#include <config.h>
46	#include <arch.h>	46	#include <arch.h>
47	#include <proc/scheduler.h>	47	#include <proc/scheduler.h>
48	#include <proc/task.h>	48	#include <proc/task.h>
49	#include <proc/thread.h>	49	#include <proc/thread.h>
50	#include <panic.h>	50	#include <panic.h>
51	#include <func.h>	51	#include <func.h>
52	#include <cpu.h>	52	#include <cpu.h>
53	#include <arch/asm.h>	53	#include <arch/asm.h>
54	#include <mm/page.h>	54	#include <mm/page.h>
55	#include <arch/mm/page.h>	55	#include <arch/mm/page.h>
56	#include <mm/as.h>	56	#include <mm/as.h>
57	#include <mm/frame.h>	57	#include <mm/frame.h>
58	#include <print.h>	58	#include <print.h>
59	#include <memstr.h>	59	#include <memstr.h>
60	#include <console/console.h>	60	#include <console/console.h>
61	#include <interrupt.h>	61	#include <interrupt.h>
62	#include <console/kconsole.h>	62	#include <console/kconsole.h>
63	#include <security/cap.h>	63	#include <security/cap.h>
64	#include <lib/rd.h>	64	#include <lib/rd.h>
65	#include <ipc/ipc.h>	65	#include <ipc/ipc.h>
66		66
67	#ifdef CONFIG_SMP	67	#ifdef CONFIG_SMP
68	#include <smp/smp.h>	68	#include <smp/smp.h>
69	#endif /* CONFIG_SMP */	69	#endif /* CONFIG_SMP */
70		70
71	#include <synch/waitq.h>	71	#include <synch/waitq.h>
72	#include <synch/spinlock.h>	72	#include <synch/spinlock.h>
73		73
74	/** Kernel initialization thread.	74	/** Kernel initialization thread.
75	*	75	*
76	* kinit takes care of higher level kernel	76	* kinit takes care of higher level kernel
77	* initialization (i.e. thread creation,	77	* initialization (i.e. thread creation,
78	* userspace initialization etc.).	78	* userspace initialization etc.).
79	*	79	*
80	* @param arg Not used.	80	* @param arg Not used.
81	*/	81	*/
82	void kinit(void *arg)	82	void kinit(void *arg)
83	{	83	{
84	thread_t *t;	84	thread_t *t;
85		85
86	/*	86	/*
87	* Detach kinit as nobody will call thread_join_timeout() on it.	87	* Detach kinit as nobody will call thread_join_timeout() on it.
88	*/	88	*/
89	thread_detach(THREAD);	89	thread_detach(THREAD);
90		90
91	interrupts_disable();	91	interrupts_disable();
92		92
93	#ifdef CONFIG_SMP	93	#ifdef CONFIG_SMP
94	if (config.cpu_count > 1) {	94	if (config.cpu_count > 1) {
95	waitq_initialize(&ap_completion_wq);	95	waitq_initialize(&ap_completion_wq);
96	/*	96	/*
97	* Create the kmp thread and wait for its completion.	97	* Create the kmp thread and wait for its completion.
98	* cpu1 through cpuN-1 will come up consecutively and	98	* cpu1 through cpuN-1 will come up consecutively and
99	* not mess together with kcpulb threads.	99	* not mess together with kcpulb threads.
100	* Just a beautification.	100	* Just a beautification.
101	*/	101	*/
102	if ((t = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED,	102	if ((t = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED,
103	"kmp", true))) {	103	"kmp", true))) {
104	spinlock_lock(&t->lock);	104	spinlock_lock(&t->lock);
105	t->cpu = &cpus[0];	105	t->cpu = &cpus[0];
106	spinlock_unlock(&t->lock);	106	spinlock_unlock(&t->lock);
107	thread_ready(t);	107	thread_ready(t);
108	} else	108	} else
109	panic("thread_create/kmp\n");	109	panic("thread_create/kmp\n");
110	thread_join(t);	110	thread_join(t);
111	thread_detach(t);	111	thread_detach(t);
112	}	112	}
113	#endif /* CONFIG_SMP */	113	#endif /* CONFIG_SMP */
114	/*	114	/*
115	* Now that all CPUs are up, we can report what we've found.	115	* Now that all CPUs are up, we can report what we've found.
116	*/	116	*/
117	cpu_list();	117	cpu_list();
118		118
119	#ifdef CONFIG_SMP	119	#ifdef CONFIG_SMP
120	if (config.cpu_count > 1) {	120	if (config.cpu_count > 1) {
121	count_t i;	121	count_t i;
122		122
123	/*	123	/*
124	* For each CPU, create its load balancing thread.	124	* For each CPU, create its load balancing thread.
125	*/	125	*/
126	for (i = 0; i < config.cpu_count; i++) {	126	for (i = 0; i < config.cpu_count; i++) {
127		127
128	if ((t = thread_create(kcpulb, NULL, TASK,	128	if ((t = thread_create(kcpulb, NULL, TASK,
129	THREAD_FLAG_WIRED, "kcpulb", true))) {	129	THREAD_FLAG_WIRED, "kcpulb", true))) {
130	spinlock_lock(&t->lock);	130	spinlock_lock(&t->lock);
131	t->cpu = &cpus[i];	131	t->cpu = &cpus[i];
132	spinlock_unlock(&t->lock);	132	spinlock_unlock(&t->lock);
133	thread_ready(t);	133	thread_ready(t);
134	} else	134	} else
135	panic("thread_create/kcpulb\n");	135	panic("thread_create/kcpulb\n");
136		136
137	}	137	}
138	}	138	}
139	#endif /* CONFIG_SMP */	139	#endif /* CONFIG_SMP */
140		140
141	/*	141	/*
142	* At this point SMP, if present, is configured.	142	* At this point SMP, if present, is configured.
143	*/	143	*/
144	arch_post_smp_init();	144	arch_post_smp_init();
145		145
146	/*	146	/*
147	* Create kernel console.	147	* Create kernel console.
148	*/	148	*/
149	t = thread_create(kconsole, (void *) "kconsole", TASK, 0, "kconsole", false);	149	t = thread_create(kconsole, (void *) "kconsole", TASK, 0, "kconsole", false);
150	if (t)	150	if (t)
151	thread_ready(t);	151	thread_ready(t);
152	else	152	else
153	panic("thread_create/kconsole\n");	153	panic("thread_create/kconsole\n");
154		154
155	interrupts_enable();	155	interrupts_enable();
156		156
157	count_t i;	157	count_t i;
158	for (i = 0; i < init.cnt; i++) {	158	for (i = 0; i < init.cnt; i++) {
159	/*	159	/*
160	* Run user tasks, load RAM disk images.	160	* Run user tasks, load RAM disk images.
161	*/	161	*/
162		162
163	if (init.tasks[i].addr % FRAME_SIZE) {	163	if (init.tasks[i].addr % FRAME_SIZE) {
164	printf("init[%d].addr is not frame aligned", i);	164	printf("init[%d].addr is not frame aligned", i);
165	continue;	165	continue;
166	}	166	}
167		167
168	task_t utask = task_run_program((void ) init.tasks[i].addr,	168	task_t utask = task_run_program((void ) init.tasks[i].addr,
169	"uspace");	169	"uspace");
-		170
170	if (utask) {	171	if (utask) {
171	/*	172	/*
172	* Set capabilities to init userspace tasks.	173	* Set capabilities to init userspace tasks.
173	*/	174	*/
174	cap_set(utask, CAP_CAP \| CAP_MEM_MANAGER \|	175	cap_set(utask, CAP_CAP \| CAP_MEM_MANAGER \|
175	CAP_IO_MANAGER \| CAP_PREEMPT_CONTROL \| CAP_IRQ_REG);	176	CAP_IO_MANAGER \| CAP_PREEMPT_CONTROL \| CAP_IRQ_REG);
176		177
177	if (!ipc_phone_0)	178	if (!ipc_phone_0)
178	ipc_phone_0 = &utask->answerbox;	179	ipc_phone_0 = &utask->answerbox;
179	} else {	180	} else {
180	int rd = init_rd((rd_header *) init.tasks[i].addr,	181	int rd = init_rd((rd_header *) init.tasks[i].addr,
181	init.tasks[i].size);	182	init.tasks[i].size);
182		183
183	if (rd != RE_OK)	184	if (rd != RE_OK)
184	printf("Init binary %zd not used.\n", i);	185	printf("Init binary %zd not used, error code %d.\n", i, rd);
185	}	186	}
186	}	187	}
187		188
188		189
189	if (!stdin) {	190	if (!stdin) {
190	while (1) {	191	while (1) {
191	thread_sleep(1);	192	thread_sleep(1);
192	printf("kinit... ");	193	printf("kinit... ");
193	}	194	}
194	}	195	}
195	}	196	}
196		197
197	/** @}	198	/** @}
198	*/	199	*/
199		200

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(root)/trunk/kernel/generic/src/main/kinit.c – Rev 2223 → 2445