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 <config.h>
#include <time/clock.h>
#include <proc/scheduler.h>
#include <proc/thread.h>
#include <proc/task.h>
#include <main/kinit.h>
#include <console/kconsole.h>
#include <cpu.h>
#include <align.h>
 
#ifdef CONFIG_SMP
#include <arch/smp/apic.h>
#include <arch/smp/mps.h>
#endif /* CONFIG_SMP */
 
#include <smp/smp.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>
 
char *project = "SPARTAN kernel";
char *release = RELEASE " (" NAME ")";
#ifdef TAG
    char *rr_delimiter = "\n";
    char *revision = TAG;
#else
    char *rr_delimiter = "";
    char *revision = "";
#endif
char *copyright = "Copyright (C) 2001-2005 HelenOS project";
 
config_t config;
context_t ctx;
 
/*
 * These 'hardcoded' variables will be intialised 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;
 
/*
 * Size of memory in bytes taken by kernel and heap.
 */
static size_t kernel_size;
 
/*
 * Size of heap.
 */
static size_t heap_size;
 
 
/*
 * Extra space between heap and stack
 * enforced by alignment requirements.
 */
static size_t heap_delta;
 
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);
static void main_ap_separated_stack(void);
 
/** Bootstrap CPU main kernel routine
 *
 * Initializes the kernel by bootstrap CPU.
 *
 * 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();
 
    heap_size = CONFIG_HEAP_SIZE + (config.memory_size/FRAME_SIZE)*sizeof(frame_t);
    kernel_size = ALIGN(hardcoded_ktext_size + hardcoded_kdata_size + heap_size, PAGE_SIZE);
    heap_delta = kernel_size - (hardcoded_ktext_size + hardcoded_kdata_size + heap_size);
   
    config.kernel_size = kernel_size + CONFIG_STACK_SIZE;
   
    context_save(&ctx);
    early_mapping(config.base + hardcoded_ktext_size + hardcoded_kdata_size, CONFIG_STACK_SIZE + heap_size + heap_delta);
    context_set(&ctx, FADDR(main_bsp_separated_stack), config.base + 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();
   
    arch_pre_mm_init();
    early_heap_init(config.base + hardcoded_ktext_size + hardcoded_kdata_size, heap_size + heap_delta);
    frame_init();
    page_init();
    tlb_init();
    arch_post_mm_init();
 
    printf("%s, release %s%s%s\n%s\n", project, release, rr_delimiter, revision, copyright);
    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();
 
    /*
     * 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.
 *
 * 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 517	Rev 518
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 <config.h>	33	#include <config.h>
34	#include <time/clock.h>	34	#include <time/clock.h>
35	#include <proc/scheduler.h>	35	#include <proc/scheduler.h>
36	#include <proc/thread.h>	36	#include <proc/thread.h>
37	#include <proc/task.h>	37	#include <proc/task.h>
38	#include <main/kinit.h>	38	#include <main/kinit.h>
39	#include <main/kconsole.h>	39	#include <console/kconsole.h>
40	#include <cpu.h>	40	#include <cpu.h>
41	#include <align.h>	41	#include <align.h>
42		42
43	#ifdef CONFIG_SMP	43	#ifdef CONFIG_SMP
44	#include <arch/smp/apic.h>	44	#include <arch/smp/apic.h>
45	#include <arch/smp/mps.h>	45	#include <arch/smp/mps.h>
46	#endif /* CONFIG_SMP */	46	#endif /* CONFIG_SMP */
47		47
48	#include <smp/smp.h>	48	#include <smp/smp.h>
49		49
50	#include <arch/mm/memory_init.h>	50	#include <arch/mm/memory_init.h>
51	#include <mm/heap.h>	51	#include <mm/heap.h>
52	#include <mm/frame.h>	52	#include <mm/frame.h>
53	#include <mm/page.h>	53	#include <mm/page.h>
54	#include <mm/tlb.h>	54	#include <mm/tlb.h>
55	#include <mm/vm.h>	55	#include <mm/vm.h>
56		56
57	#include <synch/waitq.h>	57	#include <synch/waitq.h>
58		58
59	#include <arch/arch.h>	59	#include <arch/arch.h>
60	#include <arch.h>	60	#include <arch.h>
61	#include <arch/faddr.h>	61	#include <arch/faddr.h>
62		62
63	#include <typedefs.h>	63	#include <typedefs.h>
64		64
65	char *project = "SPARTAN kernel";	65	char *project = "SPARTAN kernel";
66	char *release = RELEASE " (" NAME ")";	66	char *release = RELEASE " (" NAME ")";
67	#ifdef TAG	67	#ifdef TAG
68	char *rr_delimiter = "\n";	68	char *rr_delimiter = "\n";
69	char *revision = TAG;	69	char *revision = TAG;
70	#else	70	#else
71	char *rr_delimiter = "";	71	char *rr_delimiter = "";
72	char *revision = "";	72	char *revision = "";
73	#endif	73	#endif
74	char *copyright = "Copyright (C) 2001-2005 HelenOS project";	74	char *copyright = "Copyright (C) 2001-2005 HelenOS project";
75		75
76	config_t config;	76	config_t config;
77	context_t ctx;	77	context_t ctx;
78		78
79	/*	79	/*
80	* These 'hardcoded' variables will be intialised by	80	* These 'hardcoded' variables will be intialised by
81	* the linker or the low level assembler code with	81	* the linker or the low level assembler code with
82	* appropriate sizes and addresses.	82	* appropriate sizes and addresses.
83	*/	83	*/
84	__address hardcoded_load_address = 0;	84	__address hardcoded_load_address = 0;
85	size_t hardcoded_ktext_size = 0;	85	size_t hardcoded_ktext_size = 0;
86	size_t hardcoded_kdata_size = 0;	86	size_t hardcoded_kdata_size = 0;
87		87
88	__address init_addr = 0;	88	__address init_addr = 0;
89	size_t init_size = 0;	89	size_t init_size = 0;
90		90
91	/*	91	/*
92	* Size of memory in bytes taken by kernel and heap.	92	* Size of memory in bytes taken by kernel and heap.
93	*/	93	*/
94	static size_t kernel_size;	94	static size_t kernel_size;
95		95
96	/*	96	/*
97	* Size of heap.	97	* Size of heap.
98	*/	98	*/
99	static size_t heap_size;	99	static size_t heap_size;
100		100
101		101
102	/*	102	/*
103	* Extra space between heap and stack	103	* Extra space between heap and stack
104	* enforced by alignment requirements.	104	* enforced by alignment requirements.
105	*/	105	*/
106	static size_t heap_delta;	106	static size_t heap_delta;
107		107
108	void main_bsp(void);	108	void main_bsp(void);
109	void main_ap(void);	109	void main_ap(void);
110		110
111	/*	111	/*
112	* These two functions prevent stack from underflowing during the	112	* These two functions prevent stack from underflowing during the
113	* kernel boot phase when SP is set to the very top of the reserved	113	* kernel boot phase when SP is set to the very top of the reserved
114	* space. The stack could get corrupted by a fooled compiler-generated	114	* space. The stack could get corrupted by a fooled compiler-generated
115	* pop sequence otherwise.	115	* pop sequence otherwise.
116	*/	116	*/
117	static void main_bsp_separated_stack(void);	117	static void main_bsp_separated_stack(void);
118	static void main_ap_separated_stack(void);	118	static void main_ap_separated_stack(void);
119		119
120	/** Bootstrap CPU main kernel routine	120	/** Bootstrap CPU main kernel routine
121	*	121	*
122	* Initializes the kernel by bootstrap CPU.	122	* Initializes the kernel by bootstrap CPU.
123	*	123	*
124	* Assuming interrupts_disable().	124	* Assuming interrupts_disable().
125	*	125	*
126	*/	126	*/
127	void main_bsp(void)	127	void main_bsp(void)
128	{	128	{
129	config.cpu_count = 1;	129	config.cpu_count = 1;
130	config.cpu_active = 1;	130	config.cpu_active = 1;
131	config.base = hardcoded_load_address;	131	config.base = hardcoded_load_address;
132	config.memory_size = get_memory_size();	132	config.memory_size = get_memory_size();
133		133
134	heap_size = CONFIG_HEAP_SIZE + (config.memory_size/FRAME_SIZE)*sizeof(frame_t);	134	heap_size = CONFIG_HEAP_SIZE + (config.memory_size/FRAME_SIZE)*sizeof(frame_t);
135	kernel_size = ALIGN(hardcoded_ktext_size + hardcoded_kdata_size + heap_size, PAGE_SIZE);	135	kernel_size = ALIGN(hardcoded_ktext_size + hardcoded_kdata_size + heap_size, PAGE_SIZE);
136	heap_delta = kernel_size - (hardcoded_ktext_size + hardcoded_kdata_size + heap_size);	136	heap_delta = kernel_size - (hardcoded_ktext_size + hardcoded_kdata_size + heap_size);
137		137
138	config.kernel_size = kernel_size + CONFIG_STACK_SIZE;	138	config.kernel_size = kernel_size + CONFIG_STACK_SIZE;
139		139
140	context_save(&ctx);	140	context_save(&ctx);
141	early_mapping(config.base + hardcoded_ktext_size + hardcoded_kdata_size, CONFIG_STACK_SIZE + heap_size + heap_delta);	141	early_mapping(config.base + hardcoded_ktext_size + hardcoded_kdata_size, CONFIG_STACK_SIZE + heap_size + heap_delta);
142	context_set(&ctx, FADDR(main_bsp_separated_stack), config.base + kernel_size, CONFIG_STACK_SIZE);	142	context_set(&ctx, FADDR(main_bsp_separated_stack), config.base + kernel_size, CONFIG_STACK_SIZE);
143	context_restore(&ctx);	143	context_restore(&ctx);
144	/* not reached */	144	/* not reached */
145	}	145	}
146		146
147		147
148	/** Bootstrap CPU main kernel routine stack wrapper	148	/** Bootstrap CPU main kernel routine stack wrapper
149	*	149	*
150	* Second part of main_bsp().	150	* Second part of main_bsp().
151	*	151	*
152	*/	152	*/
153	void main_bsp_separated_stack(void)	153	void main_bsp_separated_stack(void)
154	{	154	{
155	vm_t *m;	155	vm_t *m;
156	task_t *k;	156	task_t *k;
157	thread_t *t;	157	thread_t *t;
158		158
159	the_initialize(THE);	159	the_initialize(THE);
160		160
161	/*	161	/*
162	* kconsole data structures must be initialized very early	162	* kconsole data structures must be initialized very early
163	* because other subsystems will register their respective	163	* because other subsystems will register their respective
164	* commands.	164	* commands.
165	*/	165	*/
166	kconsole_init();	166	kconsole_init();
167		167
168	arch_pre_mm_init();	168	arch_pre_mm_init();
169	early_heap_init(config.base + hardcoded_ktext_size + hardcoded_kdata_size, heap_size + heap_delta);	169	early_heap_init(config.base + hardcoded_ktext_size + hardcoded_kdata_size, heap_size + heap_delta);
170	frame_init();	170	frame_init();
171	page_init();	171	page_init();
172	tlb_init();	172	tlb_init();
173	arch_post_mm_init();	173	arch_post_mm_init();
174		174
175	printf("%s, release %s%s%s\n%s\n", project, release, rr_delimiter, revision, copyright);	175	printf("%s, release %s%s%s\n%s\n", project, release, rr_delimiter, revision, copyright);
176	printf("%P: hardcoded_ktext_size=%dK, hardcoded_kdata_size=%dK\n",	176	printf("%P: hardcoded_ktext_size=%dK, hardcoded_kdata_size=%dK\n",
177	config.base, hardcoded_ktext_size/1024, hardcoded_kdata_size/1024);	177	config.base, hardcoded_ktext_size/1024, hardcoded_kdata_size/1024);
178		178
179	arch_pre_smp_init();	179	arch_pre_smp_init();
180	smp_init();	180	smp_init();
181	printf("config.memory_size=%dM\n", config.memory_size/(1024*1024));	181	printf("config.memory_size=%dM\n", config.memory_size/(1024*1024));
182	printf("config.cpu_count=%d\n", config.cpu_count);	182	printf("config.cpu_count=%d\n", config.cpu_count);
183		183
184	cpu_init();	184	cpu_init();
185		185
186	calibrate_delay_loop();	186	calibrate_delay_loop();
187		187
188	timeout_init();	188	timeout_init();
189	scheduler_init();	189	scheduler_init();
190	task_init();	190	task_init();
191	thread_init();	191	thread_init();
192		192
193	/*	193	/*
194	* Create kernel vm mapping.	194	* Create kernel vm mapping.
195	*/	195	*/
196	m = vm_create(GET_PTL0_ADDRESS());	196	m = vm_create(GET_PTL0_ADDRESS());
197	if (!m)	197	if (!m)
198	panic("can't create kernel vm address space\n");	198	panic("can't create kernel vm address space\n");
199		199
200	/*	200	/*
201	* Create kernel task.	201	* Create kernel task.
202	*/	202	*/
203	k = task_create(m);	203	k = task_create(m);
204	if (!k)	204	if (!k)
205	panic("can't create kernel task\n");	205	panic("can't create kernel task\n");
206		206
207	/*	207	/*
208	* Create the first thread.	208	* Create the first thread.
209	*/	209	*/
210	t = thread_create(kinit, NULL, k, 0);	210	t = thread_create(kinit, NULL, k, 0);
211	if (!t)	211	if (!t)
212	panic("can't create kinit thread\n");	212	panic("can't create kinit thread\n");
213	thread_ready(t);	213	thread_ready(t);
214	/*	214	/*
215	* This call to scheduler() will return to kinit,	215	* This call to scheduler() will return to kinit,
216	* starting the thread of kernel threads.	216	* starting the thread of kernel threads.
217	*/	217	*/
218	scheduler();	218	scheduler();
219	/* not reached */	219	/* not reached */
220	}	220	}
221		221
222		222
223	#ifdef CONFIG_SMP	223	#ifdef CONFIG_SMP
224	/** Application CPUs main kernel routine	224	/** Application CPUs main kernel routine
225	*	225	*
226	* Executed by application processors, temporary stack	226	* Executed by application processors, temporary stack
227	* is at ctx.sp which was set during BP boot.	227	* is at ctx.sp which was set during BP boot.
228	*	228	*
229	* Assuming interrupts_disable()'d.	229	* Assuming interrupts_disable()'d.
230	*	230	*
231	*/	231	*/
232	void main_ap(void)	232	void main_ap(void)
233	{	233	{
234	/*	234	/*
235	* Incrementing the active CPU counter will guarantee that the	235	* Incrementing the active CPU counter will guarantee that the
236	* pm_init() will not attempt to build GDT and IDT tables again.	236	* pm_init() will not attempt to build GDT and IDT tables again.
237	* Neither frame_init() will do the complete thing. Neither cpu_init()	237	* Neither frame_init() will do the complete thing. Neither cpu_init()
238	* will do.	238	* will do.
239	*/	239	*/
240	config.cpu_active++;	240	config.cpu_active++;
241		241
242	/*	242	/*
243	* The THE structure is well defined because ctx.sp is used as stack.	243	* The THE structure is well defined because ctx.sp is used as stack.
244	*/	244	*/
245	the_initialize(THE);	245	the_initialize(THE);
246		246
247	arch_pre_mm_init();	247	arch_pre_mm_init();
248	frame_init();	248	frame_init();
249	page_init();	249	page_init();
250	tlb_init();	250	tlb_init();
251	arch_post_mm_init();	251	arch_post_mm_init();
252		252
253	cpu_init();	253	cpu_init();
254		254
255	calibrate_delay_loop();	255	calibrate_delay_loop();
256		256
257	l_apic_init();	257	l_apic_init();
258	l_apic_debug();	258	l_apic_debug();
259		259
260	the_copy(THE, (the_t *) CPU->stack);	260	the_copy(THE, (the_t *) CPU->stack);
261		261
262	/*	262	/*
263	* If we woke kmp up before we left the kernel stack, we could	263	* If we woke kmp up before we left the kernel stack, we could
264	* collide with another CPU coming up. To prevent this, we	264	* collide with another CPU coming up. To prevent this, we
265	* switch to this cpu's private stack prior to waking kmp up.	265	* switch to this cpu's private stack prior to waking kmp up.
266	*/	266	*/
267	context_set(&CPU->saved_context, FADDR(main_ap_separated_stack), (__address) CPU->stack, CPU_STACK_SIZE);	267	context_set(&CPU->saved_context, FADDR(main_ap_separated_stack), (__address) CPU->stack, CPU_STACK_SIZE);
268	context_restore(&CPU->saved_context);	268	context_restore(&CPU->saved_context);
269	/* not reached */	269	/* not reached */
270	}	270	}
271		271
272		272
273	/** Application CPUs main kernel routine stack wrapper	273	/** Application CPUs main kernel routine stack wrapper
274	*	274	*
275	* Second part of main_ap().	275	* Second part of main_ap().
276	*	276	*
277	*/	277	*/
278	void main_ap_separated_stack(void)	278	void main_ap_separated_stack(void)
279	{	279	{
280	/*	280	/*
281	* Configure timeouts for this cpu.	281	* Configure timeouts for this cpu.
282	*/	282	*/
283	timeout_init();	283	timeout_init();
284		284
285	waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST);	285	waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST);
286	scheduler();	286	scheduler();
287	/* not reached */	287	/* not reached */
288	}	288	}
289	#endif /* CONFIG_SMP */	289	#endif /* CONFIG_SMP */
290		290

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(root)/kernel/trunk/generic/src/main/main.c @ 1780 – Rev 517 → 518