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.
 */
 
/** @addtogroup main
 * @{
 */
 
/**
 * @file
 * @brief   Main initialization kernel function for all processors.
 *
 * During kernel boot, all processors, after architecture dependent
 * initialization, start executing code found in this file. After
 * bringing up all subsystems, control is passed to scheduler().
 *
 * The bootstrap processor starts executing main_bsp() while
 * the application processors start executing main_ap().
 *
 * @see scheduler()
 * @see main_bsp()
 * @see main_ap()
 */
 
#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 <synch/futex.h>
#include <arch/arch.h>
#include <arch.h>
#include <arch/faddr.h>
#include <typedefs.h>
#include <ipc/ipc.h>
#include <macros.h>
#include <adt/btree.h>
#include <console/klog.h>
 
#ifdef CONFIG_SMP
#include <arch/smp/apic.h>
#include <arch/smp/mps.h>
#endif /* CONFIG_SMP */
#include <smp/smp.h>
 
/** Global configuration structure. */
config_t config = {
    .mm_initialized = false
};
 
/** Initial user-space tasks */
init_t init = {
    0
};
 
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;
 
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
 
#define CONFIG_STACK_SIZE   ((1<<STACK_FRAMES)*STACK_SIZE)
 
/** Main kernel routine for bootstrap CPU.
 *
 * 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.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 */
    count_t i;
    bool overlap = false;
    for (i = 0; i < init.cnt; i++)
        if (PA_overlaps(stackaddr, CONFIG_STACK_SIZE, init.tasks[i].addr, init.tasks[i].size)) {
            stackaddr = ALIGN_UP(init.tasks[i].addr + init.tasks[i].size, CONFIG_STACK_SIZE);
            init.tasks[i].size = ALIGN_UP(init.tasks[i].size, CONFIG_STACK_SIZE) + CONFIG_STACK_SIZE;
            overlap = true;
        }
   
    if (!overlap)
        config.kernel_size += CONFIG_STACK_SIZE;
   
    context_save(&ctx);
    context_set(&ctx, FADDR(main_bsp_separated_stack), stackaddr, THREAD_STACK_SIZE);
    context_restore(&ctx);
    /* not reached */
}
 
 
/** Main kernel routine for bootstrap CPU using new stack.
 *
 * Second part of main_bsp().
 *
 */
void main_bsp_separated_stack(void)
{
    task_t *k;
    thread_t *t;
    count_t i;
   
    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();
    frame_init();       /* Initialize at least 1 memory segment big enough for slab to work */
    slab_cache_init();
    btree_init();
    as_init();
    page_init();
    tlb_init();
    config.mm_initialized = true;
    arch_post_mm_init();
 
    version_print();
    printf("%.*p: hardcoded_ktext_size=%zdK, hardcoded_kdata_size=%zdK\n", sizeof(__address) * 2, config.base, hardcoded_ktext_size >> 10, hardcoded_kdata_size >> 10);
 
    arch_pre_smp_init();
    smp_init();
   
    slab_enable_cpucache(); /* Slab must be initialized AFTER we know the number of processors */
 
    printf("config.memory_size=%zdM\n", config.memory_size >> 20);
    printf("config.cpu_count=%zd\n", config.cpu_count);
    cpu_init();
   
    calibrate_delay_loop();
    clock_counter_init();
    timeout_init();
    scheduler_init();
    task_init();
    thread_init();
    futex_init();
    klog_init();
   
    for (i = 0; i < init.cnt; i++)
        printf("init[%zd].addr=%.*p, init[%zd].size=%zd\n", i, sizeof(__address) * 2, init.tasks[i].addr, i, init.tasks[i].size);
   
    ipc_init();
 
    /*
     * Create kernel task.
     */
    k = task_create(AS_KERNEL, "KERNEL");
    if (!k)
        panic("can't create kernel task\n");
   
    /*
     * Create the first thread.
     */
    t = thread_create(kinit, NULL, k, 0, "kinit");
    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
/** Main kernel routine for application CPUs.
 *
 * 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 */
}
 
 
/** Main kernel routine for application CPUs using new stack.
 *
 * 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 1702	Rev 1729
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 Main initialization kernel function for all processors.	35	* @brief Main initialization kernel function for all processors.
36	*	36	*
37	* During kernel boot, all processors, after architecture dependent	37	* During kernel boot, all processors, after architecture dependent
38	* initialization, start executing code found in this file. After	38	* initialization, start executing code found in this file. After
39	* bringing up all subsystems, control is passed to scheduler().	39	* bringing up all subsystems, control is passed to scheduler().
40	*	40	*
41	* The bootstrap processor starts executing main_bsp() while	41	* The bootstrap processor starts executing main_bsp() while
42	* the application processors start executing main_ap().	42	* the application processors start executing main_ap().
43	*	43	*
44	* @see scheduler()	44	* @see scheduler()
45	* @see main_bsp()	45	* @see main_bsp()
46	* @see main_ap()	46	* @see main_ap()
47	*/	47	*/
48		48
49	#include <arch/asm.h>	49	#include <arch/asm.h>
50	#include <context.h>	50	#include <context.h>
51	#include <print.h>	51	#include <print.h>
52	#include <panic.h>	52	#include <panic.h>
53	#include <debug.h>	53	#include <debug.h>
54	#include <config.h>	54	#include <config.h>
55	#include <time/clock.h>	55	#include <time/clock.h>
56	#include <proc/scheduler.h>	56	#include <proc/scheduler.h>
57	#include <proc/thread.h>	57	#include <proc/thread.h>
58	#include <proc/task.h>	58	#include <proc/task.h>
59	#include <main/kinit.h>	59	#include <main/kinit.h>
60	#include <main/version.h>	60	#include <main/version.h>
61	#include <console/kconsole.h>	61	#include <console/kconsole.h>
62	#include <cpu.h>	62	#include <cpu.h>
63	#include <align.h>	63	#include <align.h>
64	#include <interrupt.h>	64	#include <interrupt.h>
65	#include <arch/mm/memory_init.h>	65	#include <arch/mm/memory_init.h>
66	#include <mm/frame.h>	66	#include <mm/frame.h>
67	#include <mm/page.h>	67	#include <mm/page.h>
68	#include <genarch/mm/page_pt.h>	68	#include <genarch/mm/page_pt.h>
69	#include <mm/tlb.h>	69	#include <mm/tlb.h>
70	#include <mm/as.h>	70	#include <mm/as.h>
71	#include <mm/slab.h>	71	#include <mm/slab.h>
72	#include <synch/waitq.h>	72	#include <synch/waitq.h>
73	#include <synch/futex.h>	73	#include <synch/futex.h>
74	#include <arch/arch.h>	74	#include <arch/arch.h>
75	#include <arch.h>	75	#include <arch.h>
76	#include <arch/faddr.h>	76	#include <arch/faddr.h>
77	#include <typedefs.h>	77	#include <typedefs.h>
78	#include <ipc/ipc.h>	78	#include <ipc/ipc.h>
79	#include <macros.h>	79	#include <macros.h>
80	#include <adt/btree.h>	80	#include <adt/btree.h>
81	#include <console/klog.h>	81	#include <console/klog.h>
82		82
83	#ifdef CONFIG_SMP	83	#ifdef CONFIG_SMP
84	#include <arch/smp/apic.h>	84	#include <arch/smp/apic.h>
85	#include <arch/smp/mps.h>	85	#include <arch/smp/mps.h>
86	#endif /* CONFIG_SMP */	86	#endif /* CONFIG_SMP */
87	#include <smp/smp.h>	87	#include <smp/smp.h>
88		88
89	/** Global configuration structure. */	89	/** Global configuration structure. */
90	config_t config = {	90	config_t config = {
91	.mm_initialized = false	91	.mm_initialized = false
92	};	92	};
93		93
94	/** Initial user-space tasks */	94	/** Initial user-space tasks */
95	init_t init = {	95	init_t init = {
96	0	96	0
97	};	97	};
98		98
99	context_t ctx;	99	context_t ctx;
100		100
101	/**	101	/**
102	* These 'hardcoded' variables will be intialized by	102	* These 'hardcoded' variables will be intialized by
103	* the linker or the low level assembler code with	103	* the linker or the low level assembler code with
104	* appropriate sizes and addresses.	104	* appropriate sizes and addresses.
105	*/	105	*/
106	__address hardcoded_load_address = 0;	106	__address hardcoded_load_address = 0;
107	size_t hardcoded_ktext_size = 0;	107	size_t hardcoded_ktext_size = 0;
108	size_t hardcoded_kdata_size = 0;	108	size_t hardcoded_kdata_size = 0;
109		109
110	void main_bsp(void);	110	void main_bsp(void);
111	void main_ap(void);	111	void main_ap(void);
112		112
113	/*	113	/*
114	* These two functions prevent stack from underflowing during the	114	* These two functions prevent stack from underflowing during the
115	* kernel boot phase when SP is set to the very top of the reserved	115	* kernel boot phase when SP is set to the very top of the reserved
116	* space. The stack could get corrupted by a fooled compiler-generated	116	* space. The stack could get corrupted by a fooled compiler-generated
117	* pop sequence otherwise.	117	* pop sequence otherwise.
118	*/	118	*/
119	static void main_bsp_separated_stack(void);	119	static void main_bsp_separated_stack(void);
120	#ifdef CONFIG_SMP	120	#ifdef CONFIG_SMP
121	static void main_ap_separated_stack(void);	121	static void main_ap_separated_stack(void);
122	#endif	122	#endif
123		123
124	#define CONFIG_STACK_SIZE ((1<<STACK_FRAMES)*STACK_SIZE)	124	#define CONFIG_STACK_SIZE ((1<<STACK_FRAMES)*STACK_SIZE)
125		125
126	/** Main kernel routine for bootstrap CPU.	126	/** Main kernel routine for bootstrap CPU.
127	*	127	*
128	* Initializes the kernel by bootstrap CPU.	128	* Initializes the kernel by bootstrap CPU.
129	* This function passes control directly to	129	* This function passes control directly to
130	* main_bsp_separated_stack().	130	* main_bsp_separated_stack().
131	*	131	*
132	* Assuming interrupts_disable().	132	* Assuming interrupts_disable().
133	*	133	*
134	*/	134	*/
135	void main_bsp(void)	135	void main_bsp(void)
136	{	136	{
137	__address stackaddr;	137	__address stackaddr;
138		138
139	config.cpu_count = 1;	139	config.cpu_count = 1;
140	config.cpu_active = 1;	140	config.cpu_active = 1;
141		141
142	config.base = hardcoded_load_address;	142	config.base = hardcoded_load_address;
143	config.memory_size = get_memory_size();	143	config.memory_size = get_memory_size();
144		144
145	config.kernel_size = ALIGN_UP(hardcoded_ktext_size + hardcoded_kdata_size, PAGE_SIZE);	145	config.kernel_size = ALIGN_UP(hardcoded_ktext_size + hardcoded_kdata_size, PAGE_SIZE);
146	stackaddr = config.base + config.kernel_size;	146	stackaddr = config.base + config.kernel_size;
147		147
148	/* Avoid placing kernel on top of init */	148	/* Avoid placing kernel on top of init */
149	count_t i;	149	count_t i;
150	bool overlap = false;	150	bool overlap = false;
151	for (i = 0; i < init.cnt; i++)	151	for (i = 0; i < init.cnt; i++)
152	if (PA_overlaps(stackaddr, CONFIG_STACK_SIZE, init.tasks[i].addr, init.tasks[i].size)) {	152	if (PA_overlaps(stackaddr, CONFIG_STACK_SIZE, init.tasks[i].addr, init.tasks[i].size)) {
153	stackaddr = ALIGN_UP(init.tasks[i].addr + init.tasks[i].size, CONFIG_STACK_SIZE);	153	stackaddr = ALIGN_UP(init.tasks[i].addr + init.tasks[i].size, CONFIG_STACK_SIZE);
154	init.tasks[i].size = ALIGN_UP(init.tasks[i].size, CONFIG_STACK_SIZE) + CONFIG_STACK_SIZE;	154	init.tasks[i].size = ALIGN_UP(init.tasks[i].size, CONFIG_STACK_SIZE) + CONFIG_STACK_SIZE;
155	overlap = true;	155	overlap = true;
156	}	156	}
157		157
158	if (!overlap)	158	if (!overlap)
159	config.kernel_size += CONFIG_STACK_SIZE;	159	config.kernel_size += CONFIG_STACK_SIZE;
160		160
161	context_save(&ctx);	161	context_save(&ctx);
162	context_set(&ctx, FADDR(main_bsp_separated_stack), stackaddr, THREAD_STACK_SIZE);	162	context_set(&ctx, FADDR(main_bsp_separated_stack), stackaddr, THREAD_STACK_SIZE);
163	context_restore(&ctx);	163	context_restore(&ctx);
164	/* not reached */	164	/* not reached */
165	}	165	}
166		166
167		167
168	/** Main kernel routine for bootstrap CPU using new stack.	168	/** Main kernel routine for bootstrap CPU using new stack.
169	*	169	*
170	* Second part of main_bsp().	170	* Second part of main_bsp().
171	*	171	*
172	*/	172	*/
173	void main_bsp_separated_stack(void)	173	void main_bsp_separated_stack(void)
174	{	174	{
175	task_t *k;	175	task_t *k;
176	thread_t *t;	176	thread_t *t;
177	count_t i;	177	count_t i;
178		178
179	the_initialize(THE);	179	the_initialize(THE);
180		180
181	/*	181	/*
182	* kconsole data structures must be initialized very early	182	* kconsole data structures must be initialized very early
183	* because other subsystems will register their respective	183	* because other subsystems will register their respective
184	* commands.	184	* commands.
185	*/	185	*/
186	kconsole_init();	186	kconsole_init();
187		187
188	/*	188	/*
189	* Exception handler initialization, before architecture	189	* Exception handler initialization, before architecture
190	* starts adding its own handlers	190	* starts adding its own handlers
191	*/	191	*/
192	exc_init();	192	exc_init();
193		193
194	/*	194	/*
195	* Memory management subsystems initialization.	195	* Memory management subsystems initialization.
196	*/	196	*/
197	arch_pre_mm_init();	197	arch_pre_mm_init();
198	frame_init(); /* Initialize at least 1 memory segment big enough for slab to work */	198	frame_init(); /* Initialize at least 1 memory segment big enough for slab to work */
199	slab_cache_init();	199	slab_cache_init();
200	btree_init();	200	btree_init();
201	as_init();	201	as_init();
202	page_init();	202	page_init();
203	tlb_init();	203	tlb_init();
204	config.mm_initialized = true;	204	config.mm_initialized = true;
205	arch_post_mm_init();	205	arch_post_mm_init();
206		206
207	version_print();	207	version_print();
208	printf("%.p: hardcoded_ktext_size=%zdK, hardcoded_kdata_size=%zdK\n", sizeof(__address) 2, config.base, hardcoded_ktext_size >> 10, hardcoded_kdata_size >> 10);	208	printf("%.p: hardcoded_ktext_size=%zdK, hardcoded_kdata_size=%zdK\n", sizeof(__address) 2, config.base, hardcoded_ktext_size >> 10, hardcoded_kdata_size >> 10);
209		209
210	arch_pre_smp_init();	210	arch_pre_smp_init();
211	smp_init();	211	smp_init();
212		212
213	slab_enable_cpucache(); /* Slab must be initialized AFTER we know the number of processors */	213	slab_enable_cpucache(); /* Slab must be initialized AFTER we know the number of processors */
214		214
215	printf("config.memory_size=%zdM\n", config.memory_size >> 20);	215	printf("config.memory_size=%zdM\n", config.memory_size >> 20);
216	printf("config.cpu_count=%zd\n", config.cpu_count);	216	printf("config.cpu_count=%zd\n", config.cpu_count);
217	cpu_init();	217	cpu_init();
218		218
219	calibrate_delay_loop();	219	calibrate_delay_loop();
220	clock_counter_init();	220	clock_counter_init();
221	timeout_init();	221	timeout_init();
222	scheduler_init();	222	scheduler_init();
223	task_init();	223	task_init();
224	thread_init();	224	thread_init();
225	futex_init();	225	futex_init();
226	klog_init();	226	klog_init();
227		227
228	for (i = 0; i < init.cnt; i++)	228	for (i = 0; i < init.cnt; i++)
229	printf("init[%zd].addr=%.p, init[%zd].size=%zd\n", i, sizeof(__address) 2, init.tasks[i].addr, i, init.tasks[i].size);	229	printf("init[%zd].addr=%.p, init[%zd].size=%zd\n", i, sizeof(__address) 2, init.tasks[i].addr, i, init.tasks[i].size);
230		230
231	ipc_init();	231	ipc_init();
232		232
233	/*	233	/*
234	* Create kernel task.	234	* Create kernel task.
235	*/	235	*/
236	k = task_create(AS_KERNEL, "KERNEL");	236	k = task_create(AS_KERNEL, "KERNEL");
237	if (!k)	237	if (!k)
238	panic("can't create kernel task\n");	238	panic("can't create kernel task\n");
239		239
240	/*	240	/*
241	* Create the first thread.	241	* Create the first thread.
242	*/	242	*/
243	t = thread_create(kinit, NULL, k, 0, "kinit");	243	t = thread_create(kinit, NULL, k, 0, "kinit");
244	if (!t)	244	if (!t)
245	panic("can't create kinit thread\n");	245	panic("can't create kinit thread\n");
246	thread_ready(t);	246	thread_ready(t);
247		247
248	/*	248	/*
249	* This call to scheduler() will return to kinit,	249	* This call to scheduler() will return to kinit,
250	* starting the thread of kernel threads.	250	* starting the thread of kernel threads.
251	*/	251	*/
252	scheduler();	252	scheduler();
253	/* not reached */	253	/* not reached */
254	}	254	}
255		255
256		256
257	#ifdef CONFIG_SMP	257	#ifdef CONFIG_SMP
258	/** Main kernel routine for application CPUs.	258	/** Main kernel routine for application CPUs.
259	*	259	*
260	* Executed by application processors, temporary stack	260	* Executed by application processors, temporary stack
261	* is at ctx.sp which was set during BP boot.	261	* is at ctx.sp which was set during BP boot.
262	* This function passes control directly to	262	* This function passes control directly to
263	* main_ap_separated_stack().	263	* main_ap_separated_stack().
264	*	264	*
265	* Assuming interrupts_disable()'d.	265	* Assuming interrupts_disable()'d.
266	*	266	*
267	*/	267	*/
268	void main_ap(void)	268	void main_ap(void)
269	{	269	{
270	/*	270	/*
271	* Incrementing the active CPU counter will guarantee that the	271	* Incrementing the active CPU counter will guarantee that the
272	* pm_init() will not attempt to build GDT and IDT tables again.	272	* pm_init() will not attempt to build GDT and IDT tables again.
273	* Neither frame_init() will do the complete thing. Neither cpu_init()	273	* Neither frame_init() will do the complete thing. Neither cpu_init()
274	* will do.	274	* will do.
275	*/	275	*/
276	config.cpu_active++;	276	config.cpu_active++;
277		277
278	/*	278	/*
279	* The THE structure is well defined because ctx.sp is used as stack.	279	* The THE structure is well defined because ctx.sp is used as stack.
280	*/	280	*/
281	the_initialize(THE);	281	the_initialize(THE);
282		282
283	arch_pre_mm_init();	283	arch_pre_mm_init();
284	frame_init();	284	frame_init();
285	page_init();	285	page_init();
286	tlb_init();	286	tlb_init();
287	arch_post_mm_init();	287	arch_post_mm_init();
288		288
289	cpu_init();	289	cpu_init();
290		290
291	calibrate_delay_loop();	291	calibrate_delay_loop();
292		292
293	l_apic_init();	293	l_apic_init();
294	l_apic_debug();	294	l_apic_debug();
295		295
296	the_copy(THE, (the_t *) CPU->stack);	296	the_copy(THE, (the_t *) CPU->stack);
297		297
298	/*	298	/*
299	* If we woke kmp up before we left the kernel stack, we could	299	* If we woke kmp up before we left the kernel stack, we could
300	* collide with another CPU coming up. To prevent this, we	300	* collide with another CPU coming up. To prevent this, we
301	* switch to this cpu's private stack prior to waking kmp up.	301	* switch to this cpu's private stack prior to waking kmp up.
302	*/	302	*/
303	context_set(&CPU->saved_context, FADDR(main_ap_separated_stack), (__address) CPU->stack, CPU_STACK_SIZE);	303	context_set(&CPU->saved_context, FADDR(main_ap_separated_stack), (__address) CPU->stack, CPU_STACK_SIZE);
304	context_restore(&CPU->saved_context);	304	context_restore(&CPU->saved_context);
305	/* not reached */	305	/* not reached */
306	}	306	}
307		307
308		308
309	/** Main kernel routine for application CPUs using new stack.	309	/** Main kernel routine for application CPUs using new stack.
310	*	310	*
311	* Second part of main_ap().	311	* Second part of main_ap().
312	*	312	*
313	*/	313	*/
314	void main_ap_separated_stack(void)	314	void main_ap_separated_stack(void)
315	{	315	{
316	/*	316	/*
317	* Configure timeouts for this cpu.	317	* Configure timeouts for this cpu.
318	*/	318	*/
319	timeout_init();	319	timeout_init();
320		320
321	waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST);	321	waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST);
322	scheduler();	322	scheduler();
323	/* not reached */	323	/* not reached */
324	}	324	}
325	#endif /* CONFIG_SMP */	325	#endif /* CONFIG_SMP */
326		326
327	/** @}	327	/** @}
328	*/	328	*/
329		-
330		329

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/generic/src/main/main.c – Rev 1702 → 1729