WebSVN – HelenOS-historic – Diff – /kernel/trunk/generic/src/main/main.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 <arch/asm.h>
#include <context.h>
#include <print.h>
#include <panic.h>
#include <debug.h>
#include <config.h>
#include <time/clock.h>
#include <proc/scheduler.h>
#include <proc/thread.h>
#include <proc/task.h>
#include <main/kinit.h>
#include <main/version.h>
#include <console/kconsole.h>
#include <cpu.h>
#include <align.h>
#include <interrupt.h>
#include <arch/mm/memory_init.h>
#include <mm/frame.h>
#include <mm/page.h>
#include <genarch/mm/page_pt.h>
#include <mm/tlb.h>
#include <mm/as.h>
#include <mm/slab.h>
#include <synch/waitq.h>
#include <arch/arch.h>
#include <arch.h>
#include <arch/faddr.h>
#include <typedefs.h>
 
#ifdef CONFIG_SMP
#include <arch/smp/apic.h>
#include <arch/smp/mps.h>
#endif /* CONFIG_SMP */
#include <smp/smp.h>
 
config_t config;    /**< Global configuration structure. */
 
context_t ctx;
 
/**
 * These 'hardcoded' variables will be intialized by
 * the linker or the low level assembler code with
 * appropriate sizes and addresses.
 */
__address hardcoded_load_address = 0;
size_t hardcoded_ktext_size = 0;
size_t hardcoded_kdata_size = 0;
 
__address init_addr = 0;
size_t init_size = 0;
 
void main_bsp(void);
void main_ap(void);
 
/*
 * These two functions prevent stack from underflowing during the
 * kernel boot phase when SP is set to the very top of the reserved
 * space. The stack could get corrupted by a fooled compiler-generated
 * pop sequence otherwise.
 */
static void main_bsp_separated_stack(void);
#ifdef CONFIG_SMP
static void main_ap_separated_stack(void);
#endif
 
/** Bootstrap CPU main kernel routine
 *
 * Initializes the kernel by bootstrap CPU.
 * This function passes control directly to
 * main_bsp_separated_stack().
 *
 * Assuming interrupts_disable().
 *
 */
void main_bsp(void)
{
    __address stackaddr;
 
    config.cpu_count = 1;
    config.cpu_active = 1;
   
    config.base = hardcoded_load_address;
    config.memory_size = get_memory_size();
    config.init_addr = init_addr;
    config.init_size = init_size;
   
    config.kernel_size = ALIGN_UP(hardcoded_ktext_size + hardcoded_kdata_size, PAGE_SIZE);
    stackaddr = config.base + config.kernel_size;
    /* Avoid placing kernel on top of init */
    if (overlaps(stackaddr,CONFIG_STACK_SIZE,
             config.init_addr, config.init_size)) {
       
        stackaddr = ALIGN_UP(config.init_addr+config.init_size,
                     CONFIG_STACK_SIZE);
        config.init_size = ALIGN_UP(config.init_size,CONFIG_STACK_SIZE) + CONFIG_STACK_SIZE;
    } else {
        config.kernel_size += CONFIG_STACK_SIZE;
    }
   
    context_save(&ctx);
    context_set(&ctx, FADDR(main_bsp_separated_stack),
            stackaddr, CONFIG_STACK_SIZE);
    context_restore(&ctx);
    /* not reached */
}
 
 
/** Bootstrap CPU main kernel routine stack wrapper
 *
 * Second part of main_bsp().
 *
 */
void main_bsp_separated_stack(void)
{
    task_t *k;
    thread_t *t;
   
    the_initialize(THE);
    /*
     * kconsole data structures must be initialized very early
     * because other subsystems will register their respective
     * commands.
     */
    kconsole_init();
 
    /*
     * Exception handler initialization, before architecture
     * starts adding its own handlers
     */
    exc_init();
 
    /*
     * Memory management subsystems initialization.
     */
    arch_pre_mm_init();
    /* Initialize at least 1 memory segment big enough for slab to work */
    frame_init();
    slab_cache_init();
    as_init();
    page_init();
    tlb_init();
    arch_post_mm_init();   
    version_print();
 
    printf("%P: hardcoded_ktext_size=%dK, hardcoded_kdata_size=%dK\n",
        config.base, hardcoded_ktext_size/1024, hardcoded_kdata_size/1024);
 
    arch_pre_smp_init();
    smp_init();
    /* Slab must be initialized AFTER we know the number of processors */
    slab_enable_cpucache();
 
    printf("config.memory_size=%dM\n", config.memory_size/(1024*1024));
    printf("config.cpu_count=%d\n", config.cpu_count);
    cpu_init();
 
    calibrate_delay_loop();
    timeout_init();
    scheduler_init();
    task_init();
    thread_init();
   
    if (config.init_size > 0)
        printf("config.init_addr=%P, config.init_size=%d\n", config.init_addr, config.init_size);
 
    /*
     * Create kernel task.
     */
    k = task_create(AS_KERNEL);
    if (!k)
        panic("can't create kernel task\n");
       
    /*
     * Create the first thread.
     */
    t = thread_create(kinit, NULL, k, 0);
    if (!t)
        panic("can't create kinit thread\n");
    thread_ready(t);
 
    /*
     * This call to scheduler() will return to kinit,
     * starting the thread of kernel threads.
     */
    scheduler();
    /* not reached */
}
 
 
#ifdef CONFIG_SMP
/** Application CPUs main kernel routine
 *
 * Executed by application processors, temporary stack
 * is at ctx.sp which was set during BP boot.
 * This function passes control directly to
 * main_ap_separated_stack().
 *
 * Assuming interrupts_disable()'d.
 *
 */
void main_ap(void)
{
    /*
     * Incrementing the active CPU counter will guarantee that the
     * pm_init() will not attempt to build GDT and IDT tables again.
     * Neither frame_init() will do the complete thing. Neither cpu_init()
     * will do.
     */
    config.cpu_active++;
 
    /*
     * The THE structure is well defined because ctx.sp is used as stack.
     */
    the_initialize(THE);
   
    arch_pre_mm_init();
    frame_init();
    page_init();
    tlb_init();
    arch_post_mm_init();
   
    cpu_init();
   
    calibrate_delay_loop();
 
    l_apic_init();
    l_apic_debug();
 
    the_copy(THE, (the_t *) CPU->stack);
 
    /*
     * If we woke kmp up before we left the kernel stack, we could
     * collide with another CPU coming up. To prevent this, we
     * switch to this cpu's private stack prior to waking kmp up.
     */
    context_set(&CPU->saved_context, FADDR(main_ap_separated_stack), (__address) CPU->stack, CPU_STACK_SIZE);
    context_restore(&CPU->saved_context);
    /* not reached */
}
 
 
/** Application CPUs main kernel routine stack wrapper
 *
 * Second part of main_ap().
 *
 */
void main_ap_separated_stack(void)
{
    /*
     * Configure timeouts for this cpu.
     */
    timeout_init();
 
    waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST);
    scheduler();
    /* not reached */
}
#endif /* CONFIG_SMP */
 

Rev 814	Rev 822
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 <arch/asm.h>	29	#include <arch/asm.h>
30	#include <context.h>	30	#include <context.h>
31	#include <print.h>	31	#include <print.h>
32	#include <panic.h>	32	#include <panic.h>
33	#include <debug.h>	33	#include <debug.h>
34	#include <config.h>	34	#include <config.h>
35	#include <time/clock.h>	35	#include <time/clock.h>
36	#include <proc/scheduler.h>	36	#include <proc/scheduler.h>
37	#include <proc/thread.h>	37	#include <proc/thread.h>
38	#include <proc/task.h>	38	#include <proc/task.h>
39	#include <main/kinit.h>	39	#include <main/kinit.h>
40	#include <main/version.h>	40	#include <main/version.h>
41	#include <console/kconsole.h>	41	#include <console/kconsole.h>
42	#include <cpu.h>	42	#include <cpu.h>
43	#include <align.h>	43	#include <align.h>
44	#include <interrupt.h>	44	#include <interrupt.h>
45	#include <arch/mm/memory_init.h>	45	#include <arch/mm/memory_init.h>
46	#include <mm/frame.h>	46	#include <mm/frame.h>
47	#include <mm/page.h>	47	#include <mm/page.h>
48	#include <genarch/mm/page_pt.h>	48	#include <genarch/mm/page_pt.h>
49	#include <mm/tlb.h>	49	#include <mm/tlb.h>
50	#include <mm/as.h>	50	#include <mm/as.h>
51	#include <mm/slab.h>	51	#include <mm/slab.h>
52	#include <synch/waitq.h>	52	#include <synch/waitq.h>
53	#include <arch/arch.h>	53	#include <arch/arch.h>
54	#include <arch.h>	54	#include <arch.h>
55	#include <arch/faddr.h>	55	#include <arch/faddr.h>
56	#include <typedefs.h>	56	#include <typedefs.h>
57		57
58	#ifdef CONFIG_SMP	58	#ifdef CONFIG_SMP
59	#include <arch/smp/apic.h>	59	#include <arch/smp/apic.h>
60	#include <arch/smp/mps.h>	60	#include <arch/smp/mps.h>
61	#endif /* CONFIG_SMP */	61	#endif /* CONFIG_SMP */
62	#include <smp/smp.h>	62	#include <smp/smp.h>
63		63
64	config_t config; /*< Global configuration structure. /	64	config_t config; /*< Global configuration structure. /
65		65
66	context_t ctx;	66	context_t ctx;
67		67
68	/**	68	/**
69	* These 'hardcoded' variables will be intialized by	69	* These 'hardcoded' variables will be intialized by
70	* the linker or the low level assembler code with	70	* the linker or the low level assembler code with
71	* appropriate sizes and addresses.	71	* appropriate sizes and addresses.
72	*/	72	*/
73	__address hardcoded_load_address = 0;	73	__address hardcoded_load_address = 0;
74	size_t hardcoded_ktext_size = 0;	74	size_t hardcoded_ktext_size = 0;
75	size_t hardcoded_kdata_size = 0;	75	size_t hardcoded_kdata_size = 0;
76		76
77	__address init_addr = 0;	77	__address init_addr = 0;
78	size_t init_size = 0;	78	size_t init_size = 0;
79		79
80	void main_bsp(void);	80	void main_bsp(void);
81	void main_ap(void);	81	void main_ap(void);
82		82
83	/*	83	/*
84	* These two functions prevent stack from underflowing during the	84	* These two functions prevent stack from underflowing during the
85	* kernel boot phase when SP is set to the very top of the reserved	85	* kernel boot phase when SP is set to the very top of the reserved
86	* space. The stack could get corrupted by a fooled compiler-generated	86	* space. The stack could get corrupted by a fooled compiler-generated
87	* pop sequence otherwise.	87	* pop sequence otherwise.
88	*/	88	*/
89	static void main_bsp_separated_stack(void);	89	static void main_bsp_separated_stack(void);
90	#ifdef CONFIG_SMP	90	#ifdef CONFIG_SMP
91	static void main_ap_separated_stack(void);	91	static void main_ap_separated_stack(void);
92	#endif	92	#endif
93		93
94	/** Bootstrap CPU main kernel routine	94	/** Bootstrap CPU main kernel routine
95	*	95	*
96	* Initializes the kernel by bootstrap CPU.	96	* Initializes the kernel by bootstrap CPU.
97	* This function passes control directly to	97	* This function passes control directly to
98	* main_bsp_separated_stack().	98	* main_bsp_separated_stack().
99	*	99	*
100	* Assuming interrupts_disable().	100	* Assuming interrupts_disable().
101	*	101	*
102	*/	102	*/
103	void main_bsp(void)	103	void main_bsp(void)
104	{	104	{
105	__address stackaddr;	105	__address stackaddr;
106		106
107	config.cpu_count = 1;	107	config.cpu_count = 1;
108	config.cpu_active = 1;	108	config.cpu_active = 1;
109		109
110	config.base = hardcoded_load_address;	110	config.base = hardcoded_load_address;
111	config.memory_size = get_memory_size();	111	config.memory_size = get_memory_size();
112	config.init_addr = init_addr;	112	config.init_addr = init_addr;
113	config.init_size = init_size;	113	config.init_size = init_size;
114		114
115	config.kernel_size = ALIGN_UP(hardcoded_ktext_size + hardcoded_kdata_size, PAGE_SIZE);	115	config.kernel_size = ALIGN_UP(hardcoded_ktext_size + hardcoded_kdata_size, PAGE_SIZE);
116	stackaddr = config.base + config.kernel_size;	116	stackaddr = config.base + config.kernel_size;
117	/* Avoid placing kernel on top of init */	117	/* Avoid placing kernel on top of init */
118	if (overlaps(stackaddr,stackaddr+CONFIG_STACK_SIZE,	118	if (overlaps(stackaddr,CONFIG_STACK_SIZE,
119	config.init_addr, config.init_addr+config.init_size)) {	119	config.init_addr, config.init_size)) {
120		120
121	stackaddr = ALIGN_UP(config.init_addr+config.init_size,	121	stackaddr = ALIGN_UP(config.init_addr+config.init_size,
122	CONFIG_STACK_SIZE);	122	CONFIG_STACK_SIZE);
123	config.init_size = ALIGN_UP(config.init_size,CONFIG_STACK_SIZE) + CONFIG_STACK_SIZE;	123	config.init_size = ALIGN_UP(config.init_size,CONFIG_STACK_SIZE) + CONFIG_STACK_SIZE;
124	} else {	124	} else {
125	config.kernel_size += CONFIG_STACK_SIZE;	125	config.kernel_size += CONFIG_STACK_SIZE;
126	}	126	}
127		127
128	context_save(&ctx);	128	context_save(&ctx);
129	context_set(&ctx, FADDR(main_bsp_separated_stack),	129	context_set(&ctx, FADDR(main_bsp_separated_stack),
130	stackaddr, CONFIG_STACK_SIZE);	130	stackaddr, CONFIG_STACK_SIZE);
131	context_restore(&ctx);	131	context_restore(&ctx);
132	/* not reached */	132	/* not reached */
133	}	133	}
134		134
135		135
136	/** Bootstrap CPU main kernel routine stack wrapper	136	/** Bootstrap CPU main kernel routine stack wrapper
137	*	137	*
138	* Second part of main_bsp().	138	* Second part of main_bsp().
139	*	139	*
140	*/	140	*/
141	void main_bsp_separated_stack(void)	141	void main_bsp_separated_stack(void)
142	{	142	{
143	task_t *k;	143	task_t *k;
144	thread_t *t;	144	thread_t *t;
145		145
146	the_initialize(THE);	146	the_initialize(THE);
147	/*	147	/*
148	* kconsole data structures must be initialized very early	148	* kconsole data structures must be initialized very early
149	* because other subsystems will register their respective	149	* because other subsystems will register their respective
150	* commands.	150	* commands.
151	*/	151	*/
152	kconsole_init();	152	kconsole_init();
153		153
154	/*	154	/*
155	* Exception handler initialization, before architecture	155	* Exception handler initialization, before architecture
156	* starts adding its own handlers	156	* starts adding its own handlers
157	*/	157	*/
158	exc_init();	158	exc_init();
159		159
160	/*	160	/*
161	* Memory management subsystems initialization.	161	* Memory management subsystems initialization.
162	*/	162	*/
163	arch_pre_mm_init();	163	arch_pre_mm_init();
164	/* Initialize at least 1 memory segment big enough for slab to work */	164	/* Initialize at least 1 memory segment big enough for slab to work */
165	frame_init();	165	frame_init();
166	slab_cache_init();	166	slab_cache_init();
167	as_init();	167	as_init();
168	page_init();	168	page_init();
169	tlb_init();	169	tlb_init();
170	arch_post_mm_init();	170	arch_post_mm_init();
171	version_print();	171	version_print();
172		172
173	printf("%P: hardcoded_ktext_size=%dK, hardcoded_kdata_size=%dK\n",	173	printf("%P: hardcoded_ktext_size=%dK, hardcoded_kdata_size=%dK\n",
174	config.base, hardcoded_ktext_size/1024, hardcoded_kdata_size/1024);	174	config.base, hardcoded_ktext_size/1024, hardcoded_kdata_size/1024);
175		175
176	arch_pre_smp_init();	176	arch_pre_smp_init();
177	smp_init();	177	smp_init();
178	/* Slab must be initialized AFTER we know the number of processors */	178	/* Slab must be initialized AFTER we know the number of processors */
179	slab_enable_cpucache();	179	slab_enable_cpucache();
180		180
181	printf("config.memory_size=%dM\n", config.memory_size/(1024*1024));	181	printf("config.memory_size=%dM\n", config.memory_size/(1024*1024));
182	printf("config.cpu_count=%d\n", config.cpu_count);	182	printf("config.cpu_count=%d\n", config.cpu_count);
183	cpu_init();	183	cpu_init();
184		184
185	calibrate_delay_loop();	185	calibrate_delay_loop();
186	timeout_init();	186	timeout_init();
187	scheduler_init();	187	scheduler_init();
188	task_init();	188	task_init();
189	thread_init();	189	thread_init();
190		190
191	if (config.init_size > 0)	191	if (config.init_size > 0)
192	printf("config.init_addr=%P, config.init_size=%d\n", config.init_addr, config.init_size);	192	printf("config.init_addr=%P, config.init_size=%d\n", config.init_addr, config.init_size);
193		193
194	/*	194	/*
195	* Create kernel task.	195	* Create kernel task.
196	*/	196	*/
197	k = task_create(AS_KERNEL);	197	k = task_create(AS_KERNEL);
198	if (!k)	198	if (!k)
199	panic("can't create kernel task\n");	199	panic("can't create kernel task\n");
200		200
201	/*	201	/*
202	* Create the first thread.	202	* Create the first thread.
203	*/	203	*/
204	t = thread_create(kinit, NULL, k, 0);	204	t = thread_create(kinit, NULL, k, 0);
205	if (!t)	205	if (!t)
206	panic("can't create kinit thread\n");	206	panic("can't create kinit thread\n");
207	thread_ready(t);	207	thread_ready(t);
208		208
209	/*	209	/*
210	* This call to scheduler() will return to kinit,	210	* This call to scheduler() will return to kinit,
211	* starting the thread of kernel threads.	211	* starting the thread of kernel threads.
212	*/	212	*/
213	scheduler();	213	scheduler();
214	/* not reached */	214	/* not reached */
215	}	215	}
216		216
217		217
218	#ifdef CONFIG_SMP	218	#ifdef CONFIG_SMP
219	/** Application CPUs main kernel routine	219	/** Application CPUs main kernel routine
220	*	220	*
221	* Executed by application processors, temporary stack	221	* Executed by application processors, temporary stack
222	* is at ctx.sp which was set during BP boot.	222	* is at ctx.sp which was set during BP boot.
223	* This function passes control directly to	223	* This function passes control directly to
224	* main_ap_separated_stack().	224	* main_ap_separated_stack().
225	*	225	*
226	* Assuming interrupts_disable()'d.	226	* Assuming interrupts_disable()'d.
227	*	227	*
228	*/	228	*/
229	void main_ap(void)	229	void main_ap(void)
230	{	230	{
231	/*	231	/*
232	* Incrementing the active CPU counter will guarantee that the	232	* Incrementing the active CPU counter will guarantee that the
233	* pm_init() will not attempt to build GDT and IDT tables again.	233	* pm_init() will not attempt to build GDT and IDT tables again.
234	* Neither frame_init() will do the complete thing. Neither cpu_init()	234	* Neither frame_init() will do the complete thing. Neither cpu_init()
235	* will do.	235	* will do.
236	*/	236	*/
237	config.cpu_active++;	237	config.cpu_active++;
238		238
239	/*	239	/*
240	* The THE structure is well defined because ctx.sp is used as stack.	240	* The THE structure is well defined because ctx.sp is used as stack.
241	*/	241	*/
242	the_initialize(THE);	242	the_initialize(THE);
243		243
244	arch_pre_mm_init();	244	arch_pre_mm_init();
245	frame_init();	245	frame_init();
246	page_init();	246	page_init();
247	tlb_init();	247	tlb_init();
248	arch_post_mm_init();	248	arch_post_mm_init();
249		249
250	cpu_init();	250	cpu_init();
251		251
252	calibrate_delay_loop();	252	calibrate_delay_loop();
253		253
254	l_apic_init();	254	l_apic_init();
255	l_apic_debug();	255	l_apic_debug();
256		256
257	the_copy(THE, (the_t *) CPU->stack);	257	the_copy(THE, (the_t *) CPU->stack);
258		258
259	/*	259	/*
260	* If we woke kmp up before we left the kernel stack, we could	260	* If we woke kmp up before we left the kernel stack, we could
261	* collide with another CPU coming up. To prevent this, we	261	* collide with another CPU coming up. To prevent this, we
262	* switch to this cpu's private stack prior to waking kmp up.	262	* switch to this cpu's private stack prior to waking kmp up.
263	*/	263	*/
264	context_set(&CPU->saved_context, FADDR(main_ap_separated_stack), (__address) CPU->stack, CPU_STACK_SIZE);	264	context_set(&CPU->saved_context, FADDR(main_ap_separated_stack), (__address) CPU->stack, CPU_STACK_SIZE);
265	context_restore(&CPU->saved_context);	265	context_restore(&CPU->saved_context);
266	/* not reached */	266	/* not reached */
267	}	267	}
268		268
269		269
270	/** Application CPUs main kernel routine stack wrapper	270	/** Application CPUs main kernel routine stack wrapper
271	*	271	*
272	* Second part of main_ap().	272	* Second part of main_ap().
273	*	273	*
274	*/	274	*/
275	void main_ap_separated_stack(void)	275	void main_ap_separated_stack(void)
276	{	276	{
277	/*	277	/*
278	* Configure timeouts for this cpu.	278	* Configure timeouts for this cpu.
279	*/	279	*/
280	timeout_init();	280	timeout_init();
281		281
282	waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST);	282	waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST);
283	scheduler();	283	scheduler();
284	/* not reached */	284	/* not reached */
285	}	285	}
286	#endif /* CONFIG_SMP */	286	#endif /* CONFIG_SMP */
287		287

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/generic/src/main/main.c – Rev 814 → 822