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.
 */
 
#include <config.h>
#include <arch.h>
#include <main/kinit.h>
#include <main/uinit.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/vm.h>
 
#ifdef __SMP__
#include <arch/smp/mp.h>
#endif /* __SMP__ */
 
#include <synch/waitq.h>
#include <synch/spinlock.h>
 
#ifdef __TEST__
#include <test.h>
#endif /* __TEST__ */
 
void kinit(void *arg)
{
    vm_t *m;
    vm_area_t *a;
    task_t *u;
    thread_t *t;
    int i;
 
    cpu_priority_high();
 
#ifdef __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 and klwtm 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);
            cpu_priority_high();
        }
        else panic("thread_create/kmp");
    }
#endif /* __SMP__ */
    /*
     * Now that all CPUs are up, we can report what we've found.
     */
    for (i = 0; i < config.cpu_count; i++) {
        if (cpus[i].active)
            cpu_print_report(&cpus[i]);
        else
            printf("cpu%d: not active\n", i);
    }
 
#ifdef __SMP__
    if (config.cpu_count > 1) {
            /*
         * 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");
 
        }
    }
#endif /* __SMP__ */
 
    cpu_priority_low();
 
    /*
     * Create the first user task.
     */
    m = vm_create();
    if (!m) panic(PANIC "vm_create");
    u = task_create(m);
    if (!u) panic(PANIC "task_create");
    t = thread_create(uinit, NULL, u, THREAD_USER_STACK);
    if (!t) panic(PANIC "thread_create");
 
    /*
     * Create the text vm_area and copy the userspace code there.
     */
    a = vm_area_create(m, VMA_TEXT, 1, UTEXT_ADDRESS);
    if (!a) panic(PANIC "vm_area_create: vm_text");
    memcopy((__address) utext, PA2KA(a->mapping[0]), utext_size < PAGE_SIZE ? utext_size : PAGE_SIZE);     
 
    /*
     * Create the data vm_area.
     */
    a = vm_area_create(m, VMA_STACK, 1, USTACK_ADDRESS);
    if (!a) panic(PANIC "vm_area_create: vm_stack");
   
    thread_ready(t);
 
#ifdef __TEST__
    test();
#endif /* __TEST__ */
 
 
    while (1) {
        thread_usleep(1000000);
        printf("kinit... ");
    }
 
}
 

Rev 28	Rev 32
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 <config.h>	29	#include <config.h>
30	#include <arch.h>	30	#include <arch.h>
31	#include <main/kinit.h>	31	#include <main/kinit.h>
32	#include <main/uinit.h>	32	#include <main/uinit.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/vm.h>
43		43
44	#ifdef __SMP__	44	#ifdef __SMP__
45	#include <arch/smp/mp.h>	45	#include <arch/smp/mp.h>
46	#endif /* __SMP__ */	46	#endif /* __SMP__ */
47		47
48	#include <synch/waitq.h>	48	#include <synch/waitq.h>
49	#include <synch/spinlock.h>	49	#include <synch/spinlock.h>
50		50
51	#ifdef __TEST__	51	#ifdef __TEST__
52	#include <test.h>	52	#include <test.h>
53	#endif /* __TEST__ */	53	#endif /* __TEST__ */
54		54
55	void kinit(void *arg)	55	void kinit(void *arg)
56	{	56	{
57	vm_t *m;	57	vm_t *m;
58	vm_area_t *a;	58	vm_area_t *a;
59	task_t *u;	59	task_t *u;
60	thread_t *t;	60	thread_t *t;
61	int i;	61	int i;
62		62
63	cpu_priority_high();	63	cpu_priority_high();
64		64
65	#ifdef __SMP__	65	#ifdef __SMP__
66	if (config.cpu_count > 1) {	66	if (config.cpu_count > 1) {
67	/*	67	/*
68	* Create the kmp thread and wait for its completion.	68	* Create the kmp thread and wait for its completion.
69	* cpu1 through cpuN-1 will come up consecutively and	69	* cpu1 through cpuN-1 will come up consecutively and
70	* not mess together with kcpulb and klwtm threads.	70	* not mess together with kcpulb and klwtm threads.
71	* Just a beautification.	71	* Just a beautification.
72	*/	72	*/
73	if (t = thread_create(kmp, NULL, TASK, 0)) {	73	if (t = thread_create(kmp, NULL, TASK, 0)) {
74	spinlock_lock(&t->lock);	74	spinlock_lock(&t->lock);
75	t->flags \|= X_WIRED;	75	t->flags \|= X_WIRED;
76	t->cpu = &cpus[0];	76	t->cpu = &cpus[0];
77	spinlock_unlock(&t->lock);	77	spinlock_unlock(&t->lock);
78	thread_ready(t);	78	thread_ready(t);
79	waitq_sleep(&kmp_completion_wq);	79	waitq_sleep(&kmp_completion_wq);
80	cpu_priority_high();	80	cpu_priority_high();
81	}	81	}
82	else panic("thread_create/kmp");	82	else panic("thread_create/kmp");
83	}	83	}
84	#endif /* __SMP__ */	84	#endif /* __SMP__ */
85	/*	85	/*
86	* Now that all CPUs are up, we can report what we've found.	86	* Now that all CPUs are up, we can report what we've found.
87	*/	87	*/
88	for (i = 0; i < config.cpu_count; i++)	88	for (i = 0; i < config.cpu_count; i++) {
89	if (cpus[i].active)	89	if (cpus[i].active)
90	cpu_print_report(&cpus[i]);	90	cpu_print_report(&cpus[i]);
-		91	else
-		92	printf("cpu%d: not active\n", i);
-		93	}
91		94
92	#ifdef __SMP__	95	#ifdef __SMP__
93	if (config.cpu_count > 1) {	96	if (config.cpu_count > 1) {
94	/*	97	/*
95	* For each CPU, create its load balancing thread.	98	* For each CPU, create its load balancing thread.
96	*/	99	*/
97	for (i = 0; i < config.cpu_count; i++) {	100	for (i = 0; i < config.cpu_count; i++) {
98		101
99	if (t = thread_create(kcpulb, NULL, TASK, 0)) {	102	if (t = thread_create(kcpulb, NULL, TASK, 0)) {
100	spinlock_lock(&t->lock);	103	spinlock_lock(&t->lock);
101	t->flags \|= X_WIRED;	104	t->flags \|= X_WIRED;
102	t->cpu = &cpus[i];	105	t->cpu = &cpus[i];
103	spinlock_unlock(&t->lock);	106	spinlock_unlock(&t->lock);
104	thread_ready(t);	107	thread_ready(t);
105	}	108	}
106	else panic("thread_create/kcpulb");	109	else panic("thread_create/kcpulb");
107		110
108	}	111	}
109	}	112	}
110	#endif /* __SMP__ */	113	#endif /* __SMP__ */
111		114
112	cpu_priority_low();	115	cpu_priority_low();
113		116
114	/*	117	/*
115	* Create the first user task.	118	* Create the first user task.
116	*/	119	*/
117	m = vm_create();	120	m = vm_create();
118	if (!m) panic(PANIC "vm_create");	121	if (!m) panic(PANIC "vm_create");
119	u = task_create(m);	122	u = task_create(m);
120	if (!u) panic(PANIC "task_create");	123	if (!u) panic(PANIC "task_create");
121	t = thread_create(uinit, NULL, u, THREAD_USER_STACK);	124	t = thread_create(uinit, NULL, u, THREAD_USER_STACK);
122	if (!t) panic(PANIC "thread_create");	125	if (!t) panic(PANIC "thread_create");
123		126
124	/*	127	/*
125	* Create the text vm_area and copy the userspace code there.	128	* Create the text vm_area and copy the userspace code there.
126	*/	129	*/
127	a = vm_area_create(m, VMA_TEXT, 1, UTEXT_ADDRESS);	130	a = vm_area_create(m, VMA_TEXT, 1, UTEXT_ADDRESS);
128	if (!a) panic(PANIC "vm_area_create: vm_text");	131	if (!a) panic(PANIC "vm_area_create: vm_text");
129	memcopy((__address) utext, PA2KA(a->mapping[0]), utext_size < PAGE_SIZE ? utext_size : PAGE_SIZE);	132	memcopy((__address) utext, PA2KA(a->mapping[0]), utext_size < PAGE_SIZE ? utext_size : PAGE_SIZE);
130		133
131	/*	134	/*
132	* Create the data vm_area.	135	* Create the data vm_area.
133	*/	136	*/
134	a = vm_area_create(m, VMA_STACK, 1, USTACK_ADDRESS);	137	a = vm_area_create(m, VMA_STACK, 1, USTACK_ADDRESS);
135	if (!a) panic(PANIC "vm_area_create: vm_stack");	138	if (!a) panic(PANIC "vm_area_create: vm_stack");
136		139
137	thread_ready(t);	140	thread_ready(t);
138		141
139	#ifdef __TEST__	142	#ifdef __TEST__
140	test();	143	test();
141	#endif /* __TEST__ */	144	#endif /* __TEST__ */
142		145
143		146
144	while (1) {	147	while (1) {
145	thread_usleep(1000000);	148	thread_usleep(1000000);
146	printf("kinit... ");	149	printf("kinit... ");
147	}	150	}
148		151
149	}	152	}
150		153

Subversion Repositories HelenOS

(root)/trunk/kernel/generic/src/main/kinit.c @ 3963 – Rev 28 → 32