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 <mm/tlb.h>
#include <mm/vm.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)
{
    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);
    context_restore(&ctx);
    /* not reached */
}
 
 
/** Bootstrap CPU main kernel routine stack wrapper
 *
 * Second part of main_bsp().
 *
 */
void main_bsp_separated_stack(void)
{
    vm_t *m;
    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();
   
    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 vm mapping.
     */
    m = vm_create(GET_PTL0_ADDRESS());
    if (!m)
        panic("can't create kernel vm address space\n");
 
    /*
     * Create kernel task.
     */
    k = task_create(m);
    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 673	Rev 675
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 <console/kconsole.h>	41	#include <console/kconsole.h>
41	#include <cpu.h>	42	#include <cpu.h>
42	#include <align.h>	43	#include <align.h>
43	#include <interrupt.h>	44	#include <interrupt.h>
44	#include <main/version.h>	-
45		-
46	#ifdef CONFIG_SMP	-
47	#include <arch/smp/apic.h>	-
48	#include <arch/smp/mps.h>	-
49	#endif /* CONFIG_SMP */	-
50		-
51	#include <smp/smp.h>	-
52		-
53	#include <arch/mm/memory_init.h>	45	#include <arch/mm/memory_init.h>
54	#include <mm/heap.h>	46	#include <mm/heap.h>
55	#include <mm/frame.h>	47	#include <mm/frame.h>
56	#include <mm/page.h>	48	#include <mm/page.h>
57	#include <mm/tlb.h>	49	#include <mm/tlb.h>
58	#include <mm/vm.h>	50	#include <mm/vm.h>
59		-
60	#include <synch/waitq.h>	51	#include <synch/waitq.h>
61		-
62	#include <arch/arch.h>	52	#include <arch/arch.h>
63	#include <arch.h>	53	#include <arch.h>
64	#include <arch/faddr.h>	54	#include <arch/faddr.h>
65		-
66	#include <typedefs.h>	55	#include <typedefs.h>
67		56
-		57	#ifdef CONFIG_SMP
-		58	#include <arch/smp/apic.h>
-		59	#include <arch/smp/mps.h>
-		60	#endif /* CONFIG_SMP */
68	config_t config;	61	#include <smp/smp.h>
-		62
-		63	config_t config; /*< Global configuration structure. /
-		64
69	context_t ctx;	65	context_t ctx;
70		66
71	/**	67	/**
72	* These 'hardcoded' variables will be intialized by	68	* These 'hardcoded' variables will be intialized by
73	* the linker or the low level assembler code with	69	* the linker or the low level assembler code with
74	* appropriate sizes and addresses.	70	* appropriate sizes and addresses.
75	*/	71	*/
76	__address hardcoded_load_address = 0;	72	__address hardcoded_load_address = 0;
77	size_t hardcoded_ktext_size = 0;	73	size_t hardcoded_ktext_size = 0;
78	size_t hardcoded_kdata_size = 0;	74	size_t hardcoded_kdata_size = 0;
79		75
80	__address init_addr = 0;	76	__address init_addr = 0;
81	size_t init_size = 0;	77	size_t init_size = 0;
82		78
83	void main_bsp(void);	79	void main_bsp(void);
84	void main_ap(void);	80	void main_ap(void);
85		81
86	/*	82	/*
87	* These two functions prevent stack from underflowing during the	83	* These two functions prevent stack from underflowing during the
88	* kernel boot phase when SP is set to the very top of the reserved	84	* kernel boot phase when SP is set to the very top of the reserved
89	* space. The stack could get corrupted by a fooled compiler-generated	85	* space. The stack could get corrupted by a fooled compiler-generated
90	* pop sequence otherwise.	86	* pop sequence otherwise.
91	*/	87	*/
92	static void main_bsp_separated_stack(void);	88	static void main_bsp_separated_stack(void);
93	#ifdef CONFIG_SMP	89	#ifdef CONFIG_SMP
94	static void main_ap_separated_stack(void);	90	static void main_ap_separated_stack(void);
95	#endif	91	#endif
96		92
97	/** Bootstrap CPU main kernel routine	93	/** Bootstrap CPU main kernel routine
98	*	94	*
99	* Initializes the kernel by bootstrap CPU.	95	* Initializes the kernel by bootstrap CPU.
-		96	* This function passes control directly to
-		97	* main_bsp_separated_stack().
100	*	98	*
101	* Assuming interrupts_disable().	99	* Assuming interrupts_disable().
102	*	100	*
103	*/	101	*/
104	void main_bsp(void)	102	void main_bsp(void)
105	{	103	{
106	config.cpu_count = 1;	104	config.cpu_count = 1;
107	config.cpu_active = 1;	105	config.cpu_active = 1;
108		106
109	config.base = hardcoded_load_address;	107	config.base = hardcoded_load_address;
110	config.memory_size = get_memory_size();	108	config.memory_size = get_memory_size();
111	config.init_addr = init_addr;	109	config.init_addr = init_addr;
112	config.init_size = init_size;	110	config.init_size = init_size;
113		111
114	if (init_size > 0)	112	if (init_size > 0)
115	config.heap_addr = init_addr + init_size;	113	config.heap_addr = init_addr + init_size;
116	else	114	else
117	config.heap_addr = hardcoded_load_address + hardcoded_ktext_size + hardcoded_kdata_size;	115	config.heap_addr = hardcoded_load_address + hardcoded_ktext_size + hardcoded_kdata_size;
118		116
119	config.heap_size = CONFIG_HEAP_SIZE + (config.memory_size / FRAME_SIZE) * sizeof(frame_t);	117	config.heap_size = CONFIG_HEAP_SIZE + (config.memory_size / FRAME_SIZE) * sizeof(frame_t);
120		118
121	config.kernel_size = ALIGN_UP(config.heap_addr - hardcoded_load_address + config.heap_size, PAGE_SIZE);	119	config.kernel_size = ALIGN_UP(config.heap_addr - hardcoded_load_address + config.heap_size, PAGE_SIZE);
122	config.heap_delta = config.kernel_size - (config.heap_addr - hardcoded_load_address + config.heap_size);	120	config.heap_delta = config.kernel_size - (config.heap_addr - hardcoded_load_address + config.heap_size);
123	config.kernel_size = config.kernel_size + CONFIG_STACK_SIZE;	121	config.kernel_size = config.kernel_size + CONFIG_STACK_SIZE;
124		122
125	context_save(&ctx);	123	context_save(&ctx);
126	context_set(&ctx, FADDR(main_bsp_separated_stack), config.base + config.kernel_size, CONFIG_STACK_SIZE);	124	context_set(&ctx, FADDR(main_bsp_separated_stack), config.base + config.kernel_size, CONFIG_STACK_SIZE);
127	context_restore(&ctx);	125	context_restore(&ctx);
128	/* not reached */	126	/* not reached */
129	}	127	}
130		128
131		129
132	/** Bootstrap CPU main kernel routine stack wrapper	130	/** Bootstrap CPU main kernel routine stack wrapper
133	*	131	*
134	* Second part of main_bsp().	132	* Second part of main_bsp().
135	*	133	*
136	*/	134	*/
137	void main_bsp_separated_stack(void)	135	void main_bsp_separated_stack(void)
138	{	136	{
139	vm_t *m;	137	vm_t *m;
140	task_t *k;	138	task_t *k;
141	thread_t *t;	139	thread_t *t;
142		140
143	the_initialize(THE);	141	the_initialize(THE);
144		142
145	/*	143	/*
146	* kconsole data structures must be initialized very early	144	* kconsole data structures must be initialized very early
147	* because other subsystems will register their respective	145	* because other subsystems will register their respective
148	* commands.	146	* commands.
149	*/	147	*/
150	kconsole_init();	148	kconsole_init();
151		149
152	/* Exception handler initialization, before architecture	150	/* Exception handler initialization, before architecture
153	* starts adding its own handlers	151	* starts adding its own handlers
154	*/	152	*/
155	exc_init();	153	exc_init();
156		154
157	arch_pre_mm_init();	155	arch_pre_mm_init();
158	early_heap_init(config.heap_addr, config.heap_size + config.heap_delta);	156	early_heap_init(config.heap_addr, config.heap_size + config.heap_delta);
159	frame_init();	157	frame_init();
160	page_init();	158	page_init();
161	tlb_init();	159	tlb_init();
162	arch_post_mm_init();	160	arch_post_mm_init();
163		161
164	version_print();	162	version_print();
165		163
166	printf("%P: hardcoded_ktext_size=%dK, hardcoded_kdata_size=%dK\n",	164	printf("%P: hardcoded_ktext_size=%dK, hardcoded_kdata_size=%dK\n",
167	config.base, hardcoded_ktext_size/1024, hardcoded_kdata_size/1024);	165	config.base, hardcoded_ktext_size/1024, hardcoded_kdata_size/1024);
168		166
169	arch_pre_smp_init();	167	arch_pre_smp_init();
170	smp_init();	168	smp_init();
171	printf("config.memory_size=%dM\n", config.memory_size/(1024*1024));	169	printf("config.memory_size=%dM\n", config.memory_size/(1024*1024));
172	printf("config.cpu_count=%d\n", config.cpu_count);	170	printf("config.cpu_count=%d\n", config.cpu_count);
173		171
174	cpu_init();	172	cpu_init();
175		173
176	calibrate_delay_loop();	174	calibrate_delay_loop();
177		175
178	timeout_init();	176	timeout_init();
179	scheduler_init();	177	scheduler_init();
180	task_init();	178	task_init();
181	thread_init();	179	thread_init();
182		180
183	if (config.init_size > 0)	181	if (config.init_size > 0)
184	printf("config.init_addr=%X, config.init_size=%d\n", config.init_addr, config.init_size);	182	printf("config.init_addr=%X, config.init_size=%d\n", config.init_addr, config.init_size);
185		183
186	/*	184	/*
187	* Create kernel vm mapping.	185	* Create kernel vm mapping.
188	*/	186	*/
189	m = vm_create(GET_PTL0_ADDRESS());	187	m = vm_create(GET_PTL0_ADDRESS());
190	if (!m)	188	if (!m)
191	panic("can't create kernel vm address space\n");	189	panic("can't create kernel vm address space\n");
192		190
193	/*	191	/*
194	* Create kernel task.	192	* Create kernel task.
195	*/	193	*/
196	k = task_create(m);	194	k = task_create(m);
197	if (!k)	195	if (!k)
198	panic("can't create kernel task\n");	196	panic("can't create kernel task\n");
199		197
200	/*	198	/*
201	* Create the first thread.	199	* Create the first thread.
202	*/	200	*/
203	t = thread_create(kinit, NULL, k, 0);	201	t = thread_create(kinit, NULL, k, 0);
204	if (!t)	202	if (!t)
205	panic("can't create kinit thread\n");	203	panic("can't create kinit thread\n");
206	thread_ready(t);	204	thread_ready(t);
-		205
207	/*	206	/*
208	* This call to scheduler() will return to kinit,	207	* This call to scheduler() will return to kinit,
209	* starting the thread of kernel threads.	208	* starting the thread of kernel threads.
210	*/	209	*/
211	scheduler();	210	scheduler();
212	/* not reached */	211	/* not reached */
213	}	212	}
214		213
215		214
216	#ifdef CONFIG_SMP	215	#ifdef CONFIG_SMP
217	/** Application CPUs main kernel routine	216	/** Application CPUs main kernel routine
218	*	217	*
219	* Executed by application processors, temporary stack	218	* Executed by application processors, temporary stack
220	* is at ctx.sp which was set during BP boot.	219	* is at ctx.sp which was set during BP boot.
-		220	* This function passes control directly to
-		221	* main_ap_separated_stack().
221	*	222	*
222	* Assuming interrupts_disable()'d.	223	* Assuming interrupts_disable()'d.
223	*	224	*
224	*/	225	*/
225	void main_ap(void)	226	void main_ap(void)
226	{	227	{
227	/*	228	/*
228	* Incrementing the active CPU counter will guarantee that the	229	* Incrementing the active CPU counter will guarantee that the
229	* pm_init() will not attempt to build GDT and IDT tables again.	230	* pm_init() will not attempt to build GDT and IDT tables again.
230	* Neither frame_init() will do the complete thing. Neither cpu_init()	231	* Neither frame_init() will do the complete thing. Neither cpu_init()
231	* will do.	232	* will do.
232	*/	233	*/
233	config.cpu_active++;	234	config.cpu_active++;
234		235
235	/*	236	/*
236	* The THE structure is well defined because ctx.sp is used as stack.	237	* The THE structure is well defined because ctx.sp is used as stack.
237	*/	238	*/
238	the_initialize(THE);	239	the_initialize(THE);
239		240
240	arch_pre_mm_init();	241	arch_pre_mm_init();
241	frame_init();	242	frame_init();
242	page_init();	243	page_init();
243	tlb_init();	244	tlb_init();
244	arch_post_mm_init();	245	arch_post_mm_init();
245		246
246	cpu_init();	247	cpu_init();
247		248
248	calibrate_delay_loop();	249	calibrate_delay_loop();
249		250
250	l_apic_init();	251	l_apic_init();
251	l_apic_debug();	252	l_apic_debug();
252		253
253	the_copy(THE, (the_t *) CPU->stack);	254	the_copy(THE, (the_t *) CPU->stack);
254		255
255	/*	256	/*
256	* If we woke kmp up before we left the kernel stack, we could	257	* If we woke kmp up before we left the kernel stack, we could
257	* collide with another CPU coming up. To prevent this, we	258	* collide with another CPU coming up. To prevent this, we
258	* switch to this cpu's private stack prior to waking kmp up.	259	* switch to this cpu's private stack prior to waking kmp up.
259	*/	260	*/
260	context_set(&CPU->saved_context, FADDR(main_ap_separated_stack), (__address) CPU->stack, CPU_STACK_SIZE);	261	context_set(&CPU->saved_context, FADDR(main_ap_separated_stack), (__address) CPU->stack, CPU_STACK_SIZE);
261	context_restore(&CPU->saved_context);	262	context_restore(&CPU->saved_context);
262	/* not reached */	263	/* not reached */
263	}	264	}
264		265
265		266
266	/** Application CPUs main kernel routine stack wrapper	267	/** Application CPUs main kernel routine stack wrapper
267	*	268	*
268	* Second part of main_ap().	269	* Second part of main_ap().
269	*	270	*
270	*/	271	*/
271	void main_ap_separated_stack(void)	272	void main_ap_separated_stack(void)
272	{	273	{
273	/*	274	/*
274	* Configure timeouts for this cpu.	275	* Configure timeouts for this cpu.
275	*/	276	*/
276	timeout_init();	277	timeout_init();
277		278
278	waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST);	279	waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST);
279	scheduler();	280	scheduler();
280	/* not reached */	281	/* not reached */
281	}	282	}
282	#endif /* CONFIG_SMP */	283	#endif /* CONFIG_SMP */
283		284

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/generic/src/main/main.c @ 1780 – Rev 673 → 675