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 1595	Rev 1702
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
-		30	* @{
-		31	*/
-		32
29	/**	33	/**
30	* @file main.c	34	* @file
31	* @brief Main initialization kernel function for all processors.	35	* @brief Main initialization kernel function for all processors.
32	*	36	*
33	* During kernel boot, all processors, after architecture dependent	37	* During kernel boot, all processors, after architecture dependent
34	* initialization, start executing code found in this file. After	38	* initialization, start executing code found in this file. After
35	* bringing up all subsystems, control is passed to scheduler().	39	* bringing up all subsystems, control is passed to scheduler().
36	*	40	*
37	* The bootstrap processor starts executing main_bsp() while	41	* The bootstrap processor starts executing main_bsp() while
38	* the application processors start executing main_ap().	42	* the application processors start executing main_ap().
39	*	43	*
40	* @see scheduler()	44	* @see scheduler()
41	* @see main_bsp()	45	* @see main_bsp()
42	* @see main_ap()	46	* @see main_ap()
43	*/	47	*/
44		48
45	#include <arch/asm.h>	49	#include <arch/asm.h>
46	#include <context.h>	50	#include <context.h>
47	#include <print.h>	51	#include <print.h>
48	#include <panic.h>	52	#include <panic.h>
49	#include <debug.h>	53	#include <debug.h>
50	#include <config.h>	54	#include <config.h>
51	#include <time/clock.h>	55	#include <time/clock.h>
52	#include <proc/scheduler.h>	56	#include <proc/scheduler.h>
53	#include <proc/thread.h>	57	#include <proc/thread.h>
54	#include <proc/task.h>	58	#include <proc/task.h>
55	#include <main/kinit.h>	59	#include <main/kinit.h>
56	#include <main/version.h>	60	#include <main/version.h>
57	#include <console/kconsole.h>	61	#include <console/kconsole.h>
58	#include <cpu.h>	62	#include <cpu.h>
59	#include <align.h>	63	#include <align.h>
60	#include <interrupt.h>	64	#include <interrupt.h>
61	#include <arch/mm/memory_init.h>	65	#include <arch/mm/memory_init.h>
62	#include <mm/frame.h>	66	#include <mm/frame.h>
63	#include <mm/page.h>	67	#include <mm/page.h>
64	#include <genarch/mm/page_pt.h>	68	#include <genarch/mm/page_pt.h>
65	#include <mm/tlb.h>	69	#include <mm/tlb.h>
66	#include <mm/as.h>	70	#include <mm/as.h>
67	#include <mm/slab.h>	71	#include <mm/slab.h>
68	#include <synch/waitq.h>	72	#include <synch/waitq.h>
69	#include <synch/futex.h>	73	#include <synch/futex.h>
70	#include <arch/arch.h>	74	#include <arch/arch.h>
71	#include <arch.h>	75	#include <arch.h>
72	#include <arch/faddr.h>	76	#include <arch/faddr.h>
73	#include <typedefs.h>	77	#include <typedefs.h>
74	#include <ipc/ipc.h>	78	#include <ipc/ipc.h>
75	#include <macros.h>	79	#include <macros.h>
76	#include <adt/btree.h>	80	#include <adt/btree.h>
77	#include <console/klog.h>	81	#include <console/klog.h>
78		82
79	#ifdef CONFIG_SMP	83	#ifdef CONFIG_SMP
80	#include <arch/smp/apic.h>	84	#include <arch/smp/apic.h>
81	#include <arch/smp/mps.h>	85	#include <arch/smp/mps.h>
82	#endif /* CONFIG_SMP */	86	#endif /* CONFIG_SMP */
83	#include <smp/smp.h>	87	#include <smp/smp.h>
84		88
85	/** Global configuration structure. */	89	/** Global configuration structure. */
86	config_t config = {	90	config_t config = {
87	.mm_initialized = false	91	.mm_initialized = false
88	};	92	};
89		93
90	/** Initial user-space tasks */	94	/** Initial user-space tasks */
91	init_t init = {	95	init_t init = {
92	0	96	0
93	};	97	};
94		98
95	context_t ctx;	99	context_t ctx;
96		100
97	/**	101	/**
98	* These 'hardcoded' variables will be intialized by	102	* These 'hardcoded' variables will be intialized by
99	* the linker or the low level assembler code with	103	* the linker or the low level assembler code with
100	* appropriate sizes and addresses.	104	* appropriate sizes and addresses.
101	*/	105	*/
102	__address hardcoded_load_address = 0;	106	__address hardcoded_load_address = 0;
103	size_t hardcoded_ktext_size = 0;	107	size_t hardcoded_ktext_size = 0;
104	size_t hardcoded_kdata_size = 0;	108	size_t hardcoded_kdata_size = 0;
105		109
106	void main_bsp(void);	110	void main_bsp(void);
107	void main_ap(void);	111	void main_ap(void);
108		112
109	/*	113	/*
110	* These two functions prevent stack from underflowing during the	114	* These two functions prevent stack from underflowing during the
111	* 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
112	* space. The stack could get corrupted by a fooled compiler-generated	116	* space. The stack could get corrupted by a fooled compiler-generated
113	* pop sequence otherwise.	117	* pop sequence otherwise.
114	*/	118	*/
115	static void main_bsp_separated_stack(void);	119	static void main_bsp_separated_stack(void);
116	#ifdef CONFIG_SMP	120	#ifdef CONFIG_SMP
117	static void main_ap_separated_stack(void);	121	static void main_ap_separated_stack(void);
118	#endif	122	#endif
119		123
120	#define CONFIG_STACK_SIZE ((1<<STACK_FRAMES)*STACK_SIZE)	124	#define CONFIG_STACK_SIZE ((1<<STACK_FRAMES)*STACK_SIZE)
121		125
122	/** Main kernel routine for bootstrap CPU.	126	/** Main kernel routine for bootstrap CPU.
123	*	127	*
124	* Initializes the kernel by bootstrap CPU.	128	* Initializes the kernel by bootstrap CPU.
125	* This function passes control directly to	129	* This function passes control directly to
126	* main_bsp_separated_stack().	130	* main_bsp_separated_stack().
127	*	131	*
128	* Assuming interrupts_disable().	132	* Assuming interrupts_disable().
129	*	133	*
130	*/	134	*/
131	void main_bsp(void)	135	void main_bsp(void)
132	{	136	{
133	__address stackaddr;	137	__address stackaddr;
134		138
135	config.cpu_count = 1;	139	config.cpu_count = 1;
136	config.cpu_active = 1;	140	config.cpu_active = 1;
137		141
138	config.base = hardcoded_load_address;	142	config.base = hardcoded_load_address;
139	config.memory_size = get_memory_size();	143	config.memory_size = get_memory_size();
140		144
141	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);
142	stackaddr = config.base + config.kernel_size;	146	stackaddr = config.base + config.kernel_size;
143		147
144	/* Avoid placing kernel on top of init */	148	/* Avoid placing kernel on top of init */
145	count_t i;	149	count_t i;
146	bool overlap = false;	150	bool overlap = false;
147	for (i = 0; i < init.cnt; i++)	151	for (i = 0; i < init.cnt; i++)
148	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)) {
149	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);
150	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;
151	overlap = true;	155	overlap = true;
152	}	156	}
153		157
154	if (!overlap)	158	if (!overlap)
155	config.kernel_size += CONFIG_STACK_SIZE;	159	config.kernel_size += CONFIG_STACK_SIZE;
156		160
157	context_save(&ctx);	161	context_save(&ctx);
158	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);
159	context_restore(&ctx);	163	context_restore(&ctx);
160	/* not reached */	164	/* not reached */
161	}	165	}
162		166
163		167
164	/** Main kernel routine for bootstrap CPU using new stack.	168	/** Main kernel routine for bootstrap CPU using new stack.
165	*	169	*
166	* Second part of main_bsp().	170	* Second part of main_bsp().
167	*	171	*
168	*/	172	*/
169	void main_bsp_separated_stack(void)	173	void main_bsp_separated_stack(void)
170	{	174	{
171	task_t *k;	175	task_t *k;
172	thread_t *t;	176	thread_t *t;
173	count_t i;	177	count_t i;
174		178
175	the_initialize(THE);	179	the_initialize(THE);
176		180
177	/*	181	/*
178	* kconsole data structures must be initialized very early	182	* kconsole data structures must be initialized very early
179	* because other subsystems will register their respective	183	* because other subsystems will register their respective
180	* commands.	184	* commands.
181	*/	185	*/
182	kconsole_init();	186	kconsole_init();
183		187
184	/*	188	/*
185	* Exception handler initialization, before architecture	189	* Exception handler initialization, before architecture
186	* starts adding its own handlers	190	* starts adding its own handlers
187	*/	191	*/
188	exc_init();	192	exc_init();
189		193
190	/*	194	/*
191	* Memory management subsystems initialization.	195	* Memory management subsystems initialization.
192	*/	196	*/
193	arch_pre_mm_init();	197	arch_pre_mm_init();
194	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 */
195	slab_cache_init();	199	slab_cache_init();
196	btree_init();	200	btree_init();
197	as_init();	201	as_init();
198	page_init();	202	page_init();
199	tlb_init();	203	tlb_init();
200	config.mm_initialized = true;	204	config.mm_initialized = true;
201	arch_post_mm_init();	205	arch_post_mm_init();
202		206
203	version_print();	207	version_print();
204	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);
205		209
206	arch_pre_smp_init();	210	arch_pre_smp_init();
207	smp_init();	211	smp_init();
208		212
209	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 */
210		214
211	printf("config.memory_size=%zdM\n", config.memory_size >> 20);	215	printf("config.memory_size=%zdM\n", config.memory_size >> 20);
212	printf("config.cpu_count=%zd\n", config.cpu_count);	216	printf("config.cpu_count=%zd\n", config.cpu_count);
213	cpu_init();	217	cpu_init();
214		218
215	calibrate_delay_loop();	219	calibrate_delay_loop();
216	clock_counter_init();	220	clock_counter_init();
217	timeout_init();	221	timeout_init();
218	scheduler_init();	222	scheduler_init();
219	task_init();	223	task_init();
220	thread_init();	224	thread_init();
221	futex_init();	225	futex_init();
222	klog_init();	226	klog_init();
223		227
224	for (i = 0; i < init.cnt; i++)	228	for (i = 0; i < init.cnt; i++)
225	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);
226		230
227	ipc_init();	231	ipc_init();
228		232
229	/*	233	/*
230	* Create kernel task.	234	* Create kernel task.
231	*/	235	*/
232	k = task_create(AS_KERNEL, "KERNEL");	236	k = task_create(AS_KERNEL, "KERNEL");
233	if (!k)	237	if (!k)
234	panic("can't create kernel task\n");	238	panic("can't create kernel task\n");
235		239
236	/*	240	/*
237	* Create the first thread.	241	* Create the first thread.
238	*/	242	*/
239	t = thread_create(kinit, NULL, k, 0, "kinit");	243	t = thread_create(kinit, NULL, k, 0, "kinit");
240	if (!t)	244	if (!t)
241	panic("can't create kinit thread\n");	245	panic("can't create kinit thread\n");
242	thread_ready(t);	246	thread_ready(t);
243		247
244	/*	248	/*
245	* This call to scheduler() will return to kinit,	249	* This call to scheduler() will return to kinit,
246	* starting the thread of kernel threads.	250	* starting the thread of kernel threads.
247	*/	251	*/
248	scheduler();	252	scheduler();
249	/* not reached */	253	/* not reached */
250	}	254	}
251		255
252		256
253	#ifdef CONFIG_SMP	257	#ifdef CONFIG_SMP
254	/** Main kernel routine for application CPUs.	258	/** Main kernel routine for application CPUs.
255	*	259	*
256	* Executed by application processors, temporary stack	260	* Executed by application processors, temporary stack
257	* is at ctx.sp which was set during BP boot.	261	* is at ctx.sp which was set during BP boot.
258	* This function passes control directly to	262	* This function passes control directly to
259	* main_ap_separated_stack().	263	* main_ap_separated_stack().
260	*	264	*
261	* Assuming interrupts_disable()'d.	265	* Assuming interrupts_disable()'d.
262	*	266	*
263	*/	267	*/
264	void main_ap(void)	268	void main_ap(void)
265	{	269	{
266	/*	270	/*
267	* Incrementing the active CPU counter will guarantee that the	271	* Incrementing the active CPU counter will guarantee that the
268	* 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.
269	* Neither frame_init() will do the complete thing. Neither cpu_init()	273	* Neither frame_init() will do the complete thing. Neither cpu_init()
270	* will do.	274	* will do.
271	*/	275	*/
272	config.cpu_active++;	276	config.cpu_active++;
273		277
274	/*	278	/*
275	* 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.
276	*/	280	*/
277	the_initialize(THE);	281	the_initialize(THE);
278		282
279	arch_pre_mm_init();	283	arch_pre_mm_init();
280	frame_init();	284	frame_init();
281	page_init();	285	page_init();
282	tlb_init();	286	tlb_init();
283	arch_post_mm_init();	287	arch_post_mm_init();
284		288
285	cpu_init();	289	cpu_init();
286		290
287	calibrate_delay_loop();	291	calibrate_delay_loop();
288		292
289	l_apic_init();	293	l_apic_init();
290	l_apic_debug();	294	l_apic_debug();
291		295
292	the_copy(THE, (the_t *) CPU->stack);	296	the_copy(THE, (the_t *) CPU->stack);
293		297
294	/*	298	/*
295	* 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
296	* collide with another CPU coming up. To prevent this, we	300	* collide with another CPU coming up. To prevent this, we
297	* 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.
298	*/	302	*/
299	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);
300	context_restore(&CPU->saved_context);	304	context_restore(&CPU->saved_context);
301	/* not reached */	305	/* not reached */
302	}	306	}
303		307
304		308
305	/** Main kernel routine for application CPUs using new stack.	309	/** Main kernel routine for application CPUs using new stack.
306	*	310	*
307	* Second part of main_ap().	311	* Second part of main_ap().
308	*	312	*
309	*/	313	*/
310	void main_ap_separated_stack(void)	314	void main_ap_separated_stack(void)
311	{	315	{
312	/*	316	/*
313	* Configure timeouts for this cpu.	317	* Configure timeouts for this cpu.
314	*/	318	*/
315	timeout_init();	319	timeout_init();
316		320
317	waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST);	321	waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST);
318	scheduler();	322	scheduler();
319	/* not reached */	323	/* not reached */
320	}	324	}
321	#endif /* CONFIG_SMP */	325	#endif /* CONFIG_SMP */
-		326
-		327	/** @}
-		328	*/
-		329
322		330

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/generic/src/main/main.c – Rev 1595 → 1702