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/heap.h>
#include <mm/frame.h>
#include <mm/page.h>
#include <genarch/mm/page_pt.h>
#include <mm/tlb.h>
#include <mm/as.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;
 
/** Kernel address space. */
as_t *AS_KERNEL = NULL;
 
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)
{
    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;
   
    if (init_size > 0)
        config.heap_addr = init_addr + init_size;
    else
        config.heap_addr = hardcoded_load_address + hardcoded_ktext_size + hardcoded_kdata_size;
   
    config.heap_size = CONFIG_HEAP_SIZE + (config.memory_size / FRAME_SIZE) * sizeof(frame_t);
   
    config.kernel_size = ALIGN_UP(config.heap_addr - hardcoded_load_address + config.heap_size, PAGE_SIZE);
    config.heap_delta = config.kernel_size - (config.heap_addr - hardcoded_load_address + config.heap_size);
    config.kernel_size = config.kernel_size + CONFIG_STACK_SIZE;
   
    context_save(&ctx);
    context_set(&ctx, FADDR(main_bsp_separated_stack), config.base + config.kernel_size - CONFIG_STACK_SIZE, 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)
{
    as_t *as;
    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();
    early_heap_init(config.heap_addr, config.heap_size + config.heap_delta);
    frame_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();
    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=%X, config.init_size=%d\n", config.init_addr, config.init_size);
 
    /*
     * Create kernel address space.
     */
    as = as_create(GET_PTL0_ADDRESS(), FLAG_AS_KERNEL);
    if (!as)
        panic("can't create kernel address space\n");
 
    /*
     * Create kernel task.
     */
    k = task_create(as);
    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 727	Rev 755
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/heap.h>	46	#include <mm/heap.h>
47	#include <mm/frame.h>	47	#include <mm/frame.h>
48	#include <mm/page.h>	48	#include <mm/page.h>
49	#include <genarch/mm/page_pt.h>	49	#include <genarch/mm/page_pt.h>
50	#include <mm/tlb.h>	50	#include <mm/tlb.h>
51	#include <mm/as.h>	51	#include <mm/as.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	/** Kernel address space. */
-		81	as_t *AS_KERNEL = NULL;
-		82
80	void main_bsp(void);	83	void main_bsp(void);
81	void main_ap(void);	84	void main_ap(void);
82		85
83	/*	86	/*
84	* These two functions prevent stack from underflowing during the	87	* These two functions prevent stack from underflowing during the
85	* kernel boot phase when SP is set to the very top of the reserved	88	* 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	89	* space. The stack could get corrupted by a fooled compiler-generated
87	* pop sequence otherwise.	90	* pop sequence otherwise.
88	*/	91	*/
89	static void main_bsp_separated_stack(void);	92	static void main_bsp_separated_stack(void);
90	#ifdef CONFIG_SMP	93	#ifdef CONFIG_SMP
91	static void main_ap_separated_stack(void);	94	static void main_ap_separated_stack(void);
92	#endif	95	#endif
93		96
94	/** Bootstrap CPU main kernel routine	97	/** Bootstrap CPU main kernel routine
95	*	98	*
96	* Initializes the kernel by bootstrap CPU.	99	* Initializes the kernel by bootstrap CPU.
97	* This function passes control directly to	100	* This function passes control directly to
98	* main_bsp_separated_stack().	101	* main_bsp_separated_stack().
99	*	102	*
100	* Assuming interrupts_disable().	103	* Assuming interrupts_disable().
101	*	104	*
102	*/	105	*/
103	void main_bsp(void)	106	void main_bsp(void)
104	{	107	{
105	config.cpu_count = 1;	108	config.cpu_count = 1;
106	config.cpu_active = 1;	109	config.cpu_active = 1;
107		110
108	config.base = hardcoded_load_address;	111	config.base = hardcoded_load_address;
109	config.memory_size = get_memory_size();	112	config.memory_size = get_memory_size();
110	config.init_addr = init_addr;	113	config.init_addr = init_addr;
111	config.init_size = init_size;	114	config.init_size = init_size;
112		115
113	if (init_size > 0)	116	if (init_size > 0)
114	config.heap_addr = init_addr + init_size;	117	config.heap_addr = init_addr + init_size;
115	else	118	else
116	config.heap_addr = hardcoded_load_address + hardcoded_ktext_size + hardcoded_kdata_size;	119	config.heap_addr = hardcoded_load_address + hardcoded_ktext_size + hardcoded_kdata_size;
117		120
118	config.heap_size = CONFIG_HEAP_SIZE + (config.memory_size / FRAME_SIZE) * sizeof(frame_t);	121	config.heap_size = CONFIG_HEAP_SIZE + (config.memory_size / FRAME_SIZE) * sizeof(frame_t);
119		122
120	config.kernel_size = ALIGN_UP(config.heap_addr - hardcoded_load_address + config.heap_size, PAGE_SIZE);	123	config.kernel_size = ALIGN_UP(config.heap_addr - hardcoded_load_address + config.heap_size, PAGE_SIZE);
121	config.heap_delta = config.kernel_size - (config.heap_addr - hardcoded_load_address + config.heap_size);	124	config.heap_delta = config.kernel_size - (config.heap_addr - hardcoded_load_address + config.heap_size);
122	config.kernel_size = config.kernel_size + CONFIG_STACK_SIZE;	125	config.kernel_size = config.kernel_size + CONFIG_STACK_SIZE;
123		126
124	context_save(&ctx);	127	context_save(&ctx);
125	context_set(&ctx, FADDR(main_bsp_separated_stack), config.base + config.kernel_size - CONFIG_STACK_SIZE, CONFIG_STACK_SIZE);	128	context_set(&ctx, FADDR(main_bsp_separated_stack), config.base + config.kernel_size - CONFIG_STACK_SIZE, CONFIG_STACK_SIZE);
126	context_restore(&ctx);	129	context_restore(&ctx);
127	/* not reached */	130	/* not reached */
128	}	131	}
129		132
130		133
131	/** Bootstrap CPU main kernel routine stack wrapper	134	/** Bootstrap CPU main kernel routine stack wrapper
132	*	135	*
133	* Second part of main_bsp().	136	* Second part of main_bsp().
134	*	137	*
135	*/	138	*/
136	void main_bsp_separated_stack(void)	139	void main_bsp_separated_stack(void)
137	{	140	{
138	as_t *as;	141	as_t *as;
139	task_t *k;	142	task_t *k;
140	thread_t *t;	143	thread_t *t;
141		144
142	the_initialize(THE);	145	the_initialize(THE);
143		146
144	/*	147	/*
145	* kconsole data structures must be initialized very early	148	* kconsole data structures must be initialized very early
146	* because other subsystems will register their respective	149	* because other subsystems will register their respective
147	* commands.	150	* commands.
148	*/	151	*/
149	kconsole_init();	152	kconsole_init();
150		153
151	/* Exception handler initialization, before architecture	154	/* Exception handler initialization, before architecture
152	* starts adding its own handlers	155	* starts adding its own handlers
153	*/	156	*/
154	exc_init();	157	exc_init();
155		158
-		159	/*
-		160	* Memory management subsystems initialization.
-		161	*/
156	arch_pre_mm_init();	162	arch_pre_mm_init();
157	early_heap_init(config.heap_addr, config.heap_size + config.heap_delta);	163	early_heap_init(config.heap_addr, config.heap_size + config.heap_delta);
158	frame_init();	164	frame_init();
159	page_init();	165	page_init();
160	tlb_init();	166	tlb_init();
161	arch_post_mm_init();	167	arch_post_mm_init();
162		168
163	version_print();	169	version_print();
164		170
165	printf("%P: hardcoded_ktext_size=%dK, hardcoded_kdata_size=%dK\n",	171	printf("%P: hardcoded_ktext_size=%dK, hardcoded_kdata_size=%dK\n",
166	config.base, hardcoded_ktext_size/1024, hardcoded_kdata_size/1024);	172	config.base, hardcoded_ktext_size/1024, hardcoded_kdata_size/1024);
167		173
168	arch_pre_smp_init();	174	arch_pre_smp_init();
169	smp_init();	175	smp_init();
170	printf("config.memory_size=%dM\n", config.memory_size/(1024*1024));	176	printf("config.memory_size=%dM\n", config.memory_size/(1024*1024));
171	printf("config.cpu_count=%d\n", config.cpu_count);	177	printf("config.cpu_count=%d\n", config.cpu_count);
172		178
173	cpu_init();	179	cpu_init();
174		180
175	calibrate_delay_loop();	181	calibrate_delay_loop();
176		182
177	timeout_init();	183	timeout_init();
178	scheduler_init();	184	scheduler_init();
179	task_init();	185	task_init();
180	thread_init();	186	thread_init();
181		187
182	if (config.init_size > 0)	188	if (config.init_size > 0)
183	printf("config.init_addr=%X, config.init_size=%d\n", config.init_addr, config.init_size);	189	printf("config.init_addr=%X, config.init_size=%d\n", config.init_addr, config.init_size);
184		190
185	/*	191	/*
186	* Create kernel address space.	192	* Create kernel address space.
187	*/	193	*/
188	as = as_create(GET_PTL0_ADDRESS(), AS_KERNEL);	194	as = as_create(GET_PTL0_ADDRESS(), FLAG_AS_KERNEL);
189	if (!as)	195	if (!as)
190	panic("can't create kernel address space\n");	196	panic("can't create kernel address space\n");
191		197
192	/*	198	/*
193	* Create kernel task.	199	* Create kernel task.
194	*/	200	*/
195	k = task_create(as);	201	k = task_create(as);
196	if (!k)	202	if (!k)
197	panic("can't create kernel task\n");	203	panic("can't create kernel task\n");
198		204
199	/*	205	/*
200	* Create the first thread.	206	* Create the first thread.
201	*/	207	*/
202	t = thread_create(kinit, NULL, k, 0);	208	t = thread_create(kinit, NULL, k, 0);
203	if (!t)	209	if (!t)
204	panic("can't create kinit thread\n");	210	panic("can't create kinit thread\n");
205	thread_ready(t);	211	thread_ready(t);
206		212
207	/*	213	/*
208	* This call to scheduler() will return to kinit,	214	* This call to scheduler() will return to kinit,
209	* starting the thread of kernel threads.	215	* starting the thread of kernel threads.
210	*/	216	*/
211	scheduler();	217	scheduler();
212	/* not reached */	218	/* not reached */
213	}	219	}
214		220
215		221
216	#ifdef CONFIG_SMP	222	#ifdef CONFIG_SMP
217	/** Application CPUs main kernel routine	223	/** Application CPUs main kernel routine
218	*	224	*
219	* Executed by application processors, temporary stack	225	* Executed by application processors, temporary stack
220	* is at ctx.sp which was set during BP boot.	226	* is at ctx.sp which was set during BP boot.
221	* This function passes control directly to	227	* This function passes control directly to
222	* main_ap_separated_stack().	228	* main_ap_separated_stack().
223	*	229	*
224	* Assuming interrupts_disable()'d.	230	* Assuming interrupts_disable()'d.
225	*	231	*
226	*/	232	*/
227	void main_ap(void)	233	void main_ap(void)
228	{	234	{
229	/*	235	/*
230	* Incrementing the active CPU counter will guarantee that the	236	* Incrementing the active CPU counter will guarantee that the
231	* pm_init() will not attempt to build GDT and IDT tables again.	237	* pm_init() will not attempt to build GDT and IDT tables again.
232	* Neither frame_init() will do the complete thing. Neither cpu_init()	238	* Neither frame_init() will do the complete thing. Neither cpu_init()
233	* will do.	239	* will do.
234	*/	240	*/
235	config.cpu_active++;	241	config.cpu_active++;
236		242
237	/*	243	/*
238	* The THE structure is well defined because ctx.sp is used as stack.	244	* The THE structure is well defined because ctx.sp is used as stack.
239	*/	245	*/
240	the_initialize(THE);	246	the_initialize(THE);
241		247
242	arch_pre_mm_init();	248	arch_pre_mm_init();
243	frame_init();	249	frame_init();
244	page_init();	250	page_init();
245	tlb_init();	251	tlb_init();
246	arch_post_mm_init();	252	arch_post_mm_init();
247		253
248	cpu_init();	254	cpu_init();
249		255
250	calibrate_delay_loop();	256	calibrate_delay_loop();
251		257
252	l_apic_init();	258	l_apic_init();
253	l_apic_debug();	259	l_apic_debug();
254		260
255	the_copy(THE, (the_t *) CPU->stack);	261	the_copy(THE, (the_t *) CPU->stack);
256		262
257	/*	263	/*
258	* If we woke kmp up before we left the kernel stack, we could	264	* If we woke kmp up before we left the kernel stack, we could
259	* collide with another CPU coming up. To prevent this, we	265	* collide with another CPU coming up. To prevent this, we
260	* switch to this cpu's private stack prior to waking kmp up.	266	* switch to this cpu's private stack prior to waking kmp up.
261	*/	267	*/
262	context_set(&CPU->saved_context, FADDR(main_ap_separated_stack), (__address) CPU->stack, CPU_STACK_SIZE);	268	context_set(&CPU->saved_context, FADDR(main_ap_separated_stack), (__address) CPU->stack, CPU_STACK_SIZE);
263	context_restore(&CPU->saved_context);	269	context_restore(&CPU->saved_context);
264	/* not reached */	270	/* not reached */
265	}	271	}
266		272
267		273
268	/** Application CPUs main kernel routine stack wrapper	274	/** Application CPUs main kernel routine stack wrapper
269	*	275	*
270	* Second part of main_ap().	276	* Second part of main_ap().
271	*	277	*
272	*/	278	*/
273	void main_ap_separated_stack(void)	279	void main_ap_separated_stack(void)
274	{	280	{
275	/*	281	/*
276	* Configure timeouts for this cpu.	282	* Configure timeouts for this cpu.
277	*/	283	*/
278	timeout_init();	284	timeout_init();
279		285
280	waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST);	286	waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST);
281	scheduler();	287	scheduler();
282	/* not reached */	288	/* not reached */
283	}	289	}
284	#endif /* CONFIG_SMP */	290	#endif /* CONFIG_SMP */
285		291

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(root)/kernel/trunk/generic/src/main/main.c @ 1780 – Rev 727 → 755