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 <proc/program.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>
 
#define ALIVE_CHARS  4
 
static char alive[ALIVE_CHARS] = "-\\|/";
 
/** 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)
{
 
#if defined(CONFIG_SMP) || defined(CONFIG_KCONSOLE)
    thread_t *thread;
#endif
 
    /*
     * 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.
         */
        thread = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED, "kmp", true);
        if (thread != NULL) {
            spinlock_lock(&thread->lock);
            thread->cpu = &cpus[0];
            spinlock_unlock(&thread->lock);
            thread_ready(thread);
        } else
            panic("Unable to create kmp thread.");
        thread_join(thread);
        thread_detach(thread);
    }
#endif /* CONFIG_SMP */
   
#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++) {
            thread = thread_create(kcpulb, NULL, TASK, THREAD_FLAG_WIRED, "kcpulb", true);
            if (thread != NULL) {
                spinlock_lock(&thread->lock);
                thread->cpu = &cpus[i];
                spinlock_unlock(&thread->lock);
                thread_ready(thread);
            } else
                printf("Unable to create kcpulb thread for cpu" PRIc "\n", i);
 
        }
    }
#endif /* CONFIG_SMP */
   
    /*
     * At this point SMP, if present, is configured.
     */
    arch_post_smp_init();
 
#ifdef CONFIG_KCONSOLE
    if (stdin) {
        /*
         * Create kernel console.
         */
        thread = thread_create(kconsole_thread, NULL, TASK, 0, "kconsole", false);
        if (thread != NULL)
            thread_ready(thread);
        else
            printf("Unable to create kconsole thread\n");
    }
#endif /* CONFIG_KCONSOLE */
   
    interrupts_enable();
   
    /*
     * Create user tasks, load RAM disk images.
     */
    count_t i;
    program_t programs[CONFIG_INIT_TASKS];
   
    for (i = 0; i < init.cnt; i++) {
        if (init.tasks[i].addr % FRAME_SIZE) {
            printf("init[%" PRIc "].addr is not frame aligned\n", i);
            continue;
        }
       
        int rc = program_create_from_image((void *) init.tasks[i].addr,
            "init-bin", &programs[i]);
       
        if ((rc == 0) && (programs[i].task != NULL)) {
            /*
             * Set capabilities to init userspace tasks.
             */
            cap_set(programs[i].task, CAP_CAP | CAP_MEM_MANAGER |
                CAP_IO_MANAGER | CAP_PREEMPT_CONTROL | CAP_IRQ_REG);
           
            if (!ipc_phone_0)
                ipc_phone_0 = &programs[i].task->answerbox;
        } else if (rc == 0) {
            /* It was the program loader and was registered */
        } else {
            /* RAM disk image */
            int rd = init_rd((rd_header_t *) init.tasks[i].addr, init.tasks[i].size);
           
            if (rd != RE_OK)
                printf("Init binary %" PRIc " not used (error %d)\n", i, rd);
        }
    }
   
    /*
     * Run user tasks with reasonable delays
     */
    for (i = 0; i < init.cnt; i++) {
        if (programs[i].task != NULL) {
            thread_usleep(50000);
            program_ready(&programs[i]);
        }
    }
 
#ifdef CONFIG_KCONSOLE
    if (!stdin) {
        thread_sleep(10);
        printf("kinit: No stdin\nKernel alive: .");
       
        unsigned int i = 0;
        while (true) {
            printf("\b%c", alive[i % ALIVE_CHARS]);
            thread_sleep(1);
            i++;
        }
    }
#endif /* CONFIG_KCONSOLE */
}
 
/** @}
 */
 

Rev 3840	Rev 3860
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 <proc/program.h>	50	#include <proc/program.h>
51	#include <panic.h>	51	#include <panic.h>
52	#include <func.h>	52	#include <func.h>
53	#include <cpu.h>	53	#include <cpu.h>
54	#include <arch/asm.h>	54	#include <arch/asm.h>
55	#include <mm/page.h>	55	#include <mm/page.h>
56	#include <arch/mm/page.h>	56	#include <arch/mm/page.h>
57	#include <mm/as.h>	57	#include <mm/as.h>
58	#include <mm/frame.h>	58	#include <mm/frame.h>
59	#include <print.h>	59	#include <print.h>
60	#include <memstr.h>	60	#include <memstr.h>
61	#include <console/console.h>	61	#include <console/console.h>
62	#include <interrupt.h>	62	#include <interrupt.h>
63	#include <console/kconsole.h>	63	#include <console/kconsole.h>
64	#include <security/cap.h>	64	#include <security/cap.h>
65	#include <lib/rd.h>	65	#include <lib/rd.h>
66	#include <ipc/ipc.h>	66	#include <ipc/ipc.h>
67		67
68	#ifdef CONFIG_SMP	68	#ifdef CONFIG_SMP
69	#include <smp/smp.h>	69	#include <smp/smp.h>
70	#endif /* CONFIG_SMP */	70	#endif /* CONFIG_SMP */
71		71
72	#include <synch/waitq.h>	72	#include <synch/waitq.h>
73	#include <synch/spinlock.h>	73	#include <synch/spinlock.h>
74		74
75	#define ALIVE_CHARS 4	75	#define ALIVE_CHARS 4
76		76
77	static char alive[ALIVE_CHARS] = "-\\\|/";	77	static char alive[ALIVE_CHARS] = "-\\\|/";
78		78
79	/** Kernel initialization thread.	79	/** Kernel initialization thread.
80	*	80	*
81	* kinit takes care of higher level kernel	81	* kinit takes care of higher level kernel
82	* initialization (i.e. thread creation,	82	* initialization (i.e. thread creation,
83	* userspace initialization etc.).	83	* userspace initialization etc.).
84	*	84	*
85	* @param arg Not used.	85	* @param arg Not used.
86	*/	86	*/
87	void kinit(void *arg)	87	void kinit(void *arg)
88	{	88	{
89		89
90	#if defined(CONFIG_SMP) \|\| defined(CONFIG_KCONSOLE)	90	#if defined(CONFIG_SMP) \|\| defined(CONFIG_KCONSOLE)
91	thread_t *thread;	91	thread_t *thread;
92	#endif	92	#endif
93		93
94	/*	94	/*
95	* Detach kinit as nobody will call thread_join_timeout() on it.	95	* Detach kinit as nobody will call thread_join_timeout() on it.
96	*/	96	*/
97	thread_detach(THREAD);	97	thread_detach(THREAD);
98		98
99	interrupts_disable();	99	interrupts_disable();
100		100
101	#ifdef CONFIG_SMP	101	#ifdef CONFIG_SMP
102	if (config.cpu_count > 1) {	102	if (config.cpu_count > 1) {
103	waitq_initialize(&ap_completion_wq);	103	waitq_initialize(&ap_completion_wq);
104	/*	104	/*
105	* Create the kmp thread and wait for its completion.	105	* Create the kmp thread and wait for its completion.
106	* cpu1 through cpuN-1 will come up consecutively and	106	* cpu1 through cpuN-1 will come up consecutively and
107	* not mess together with kcpulb threads.	107	* not mess together with kcpulb threads.
108	* Just a beautification.	108	* Just a beautification.
109	*/	109	*/
110	thread = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED, "kmp", true);	110	thread = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED, "kmp", true);
111	if (thread != NULL) {	111	if (thread != NULL) {
112	spinlock_lock(&thread->lock);	112	spinlock_lock(&thread->lock);
113	thread->cpu = &cpus[0];	113	thread->cpu = &cpus[0];
114	spinlock_unlock(&thread->lock);	114	spinlock_unlock(&thread->lock);
115	thread_ready(thread);	115	thread_ready(thread);
116	} else	116	} else
117	panic("Unable to create kmp thread.");	117	panic("Unable to create kmp thread.");
118	thread_join(thread);	118	thread_join(thread);
119	thread_detach(thread);	119	thread_detach(thread);
120	}	120	}
121	#endif /* CONFIG_SMP */	121	#endif /* CONFIG_SMP */
122		122
123	#ifdef CONFIG_SMP	123	#ifdef CONFIG_SMP
124	if (config.cpu_count > 1) {	124	if (config.cpu_count > 1) {
125	count_t i;	125	count_t i;
126		126
127	/*	127	/*
128	* For each CPU, create its load balancing thread.	128	* For each CPU, create its load balancing thread.
129	*/	129	*/
130	for (i = 0; i < config.cpu_count; i++) {	130	for (i = 0; i < config.cpu_count; i++) {
131	thread = thread_create(kcpulb, NULL, TASK, THREAD_FLAG_WIRED, "kcpulb", true);	131	thread = thread_create(kcpulb, NULL, TASK, THREAD_FLAG_WIRED, "kcpulb", true);
132	if (thread != NULL) {	132	if (thread != NULL) {
133	spinlock_lock(&thread->lock);	133	spinlock_lock(&thread->lock);
134	thread->cpu = &cpus[i];	134	thread->cpu = &cpus[i];
135	spinlock_unlock(&thread->lock);	135	spinlock_unlock(&thread->lock);
136	thread_ready(thread);	136	thread_ready(thread);
137	} else	137	} else
138	printf("Unable to create kcpulb thread for cpu" PRIc "\n", i);	138	printf("Unable to create kcpulb thread for cpu" PRIc "\n", i);
139		139
140	}	140	}
141	}	141	}
142	#endif /* CONFIG_SMP */	142	#endif /* CONFIG_SMP */
143		143
144	/*	144	/*
145	* At this point SMP, if present, is configured.	145	* At this point SMP, if present, is configured.
146	*/	146	*/
147	arch_post_smp_init();	147	arch_post_smp_init();
148		148
149	#ifdef CONFIG_KCONSOLE	149	#ifdef CONFIG_KCONSOLE
150	if (stdin) {	150	if (stdin) {
151	/*	151	/*
152	* Create kernel console.	152	* Create kernel console.
153	*/	153	*/
154	thread = thread_create(kconsole_thread, NULL, TASK, 0, "kconsole", false);	154	thread = thread_create(kconsole_thread, NULL, TASK, 0, "kconsole", false);
155	if (thread != NULL)	155	if (thread != NULL)
156	thread_ready(thread);	156	thread_ready(thread);
157	else	157	else
158	printf("Unable to create kconsole thread\n");	158	printf("Unable to create kconsole thread\n");
159	}	159	}
160	#endif /* CONFIG_KCONSOLE */	160	#endif /* CONFIG_KCONSOLE */
161		161
162	interrupts_enable();	162	interrupts_enable();
163		163
164	/*	164	/*
165	* Create user tasks, load RAM disk images.	165	* Create user tasks, load RAM disk images.
166	*/	166	*/
167	count_t i;	167	count_t i;
168	program_t programs[CONFIG_INIT_TASKS];	168	program_t programs[CONFIG_INIT_TASKS];
169		169
170	for (i = 0; i < init.cnt; i++) {	170	for (i = 0; i < init.cnt; i++) {
171	if (init.tasks[i].addr % FRAME_SIZE) {	171	if (init.tasks[i].addr % FRAME_SIZE) {
172	printf("init[%" PRIc "].addr is not frame aligned\n", i);	172	printf("init[%" PRIc "].addr is not frame aligned\n", i);
173	continue;	173	continue;
174	}	174	}
175		175
176	int rc = program_create_from_image((void *) init.tasks[i].addr,	176	int rc = program_create_from_image((void *) init.tasks[i].addr,
177	"init-bin", &programs[i]);	177	"init-bin", &programs[i]);
178		178
179	if ((rc == 0) && (programs[i].task != NULL)) {	179	if ((rc == 0) && (programs[i].task != NULL)) {
180	/*	180	/*
181	* Set capabilities to init userspace tasks.	181	* Set capabilities to init userspace tasks.
182	*/	182	*/
183	cap_set(programs[i].task, CAP_CAP \| CAP_MEM_MANAGER \|	183	cap_set(programs[i].task, CAP_CAP \| CAP_MEM_MANAGER \|
184	CAP_IO_MANAGER \| CAP_PREEMPT_CONTROL \| CAP_IRQ_REG);	184	CAP_IO_MANAGER \| CAP_PREEMPT_CONTROL \| CAP_IRQ_REG);
185		185
186	if (!ipc_phone_0)	186	if (!ipc_phone_0)
187	ipc_phone_0 = &programs[i].task->answerbox;	187	ipc_phone_0 = &programs[i].task->answerbox;
188	} else if (rc == 0) {	188	} else if (rc == 0) {
189	/* It was the program loader and was registered */	189	/* It was the program loader and was registered */
190	} else {	190	} else {
191	/* RAM disk image */	191	/* RAM disk image */
192	int rd = init_rd((rd_header_t *) init.tasks[i].addr, init.tasks[i].size);	192	int rd = init_rd((rd_header_t *) init.tasks[i].addr, init.tasks[i].size);
193		193
194	if (rd != RE_OK)	194	if (rd != RE_OK)
195	printf("Init binary %" PRIc " not used (error %d)\n", i, rd);	195	printf("Init binary %" PRIc " not used (error %d)\n", i, rd);
196	}	196	}
197	}	197	}
198		198
199	/*	199	/*
200	* Run user tasks with reasonable delays	200	* Run user tasks with reasonable delays
201	*/	201	*/
202	for (i = 0; i < init.cnt; i++) {	202	for (i = 0; i < init.cnt; i++) {
203	if (programs[i].task != NULL) {	203	if (programs[i].task != NULL) {
204	thread_usleep(50000);	204	thread_usleep(50000);
205	program_ready(&programs[i]);	205	program_ready(&programs[i]);
206	}	206	}
207	}	207	}
208		208
209	#ifdef CONFIG_KCONSOLE	209	#ifdef CONFIG_KCONSOLE
210	if (!stdin) {	210	if (!stdin) {
211	thread_sleep(10);	211	thread_sleep(10);
212	printf("kinit: No stdin\nKernel alive: ");	212	printf("kinit: No stdin\nKernel alive: .");
213		213
214	unsigned int i = 0;	214	unsigned int i = 0;
215	while (true) {	215	while (true) {
216	printf("\b%c", alive[i % ALIVE_CHARS]);	216	printf("\b%c", alive[i % ALIVE_CHARS]);
217	thread_sleep(1);	217	thread_sleep(1);
218	i++;	218	i++;
219	}	219	}
220	}	220	}
221	#endif /* CONFIG_KCONSOLE */	221	#endif /* CONFIG_KCONSOLE */
222	}	222	}
223		223
224	/** @}	224	/** @}
225	*/	225	*/
226		226

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(root)/trunk/kernel/generic/src/main/kinit.c – Rev 3840 → 3860