Subversion Repositories HelenOS

Rev

Rev 727 | Rev 756 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

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