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867e359b CM |
1 | /* |
2 | * Copyright 2010 Tilera Corporation. All Rights Reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation, version 2. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, but | |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
11 | * NON INFRINGEMENT. See the GNU General Public License for | |
12 | * more details. | |
13 | */ | |
14 | ||
15 | #include <linux/mm.h> | |
16 | #include <linux/fs.h> | |
17 | #include <linux/init_task.h> | |
18 | #include <linux/mqueue.h> | |
19 | #include <linux/module.h> | |
20 | #include <linux/start_kernel.h> | |
21 | #include <linux/uaccess.h> | |
22 | ||
23 | static struct signal_struct init_signals = INIT_SIGNALS(init_signals); | |
24 | static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); | |
25 | ||
26 | /* | |
27 | * Initial thread structure. | |
28 | * | |
29 | * We need to make sure that this is THREAD_SIZE aligned due to the | |
30 | * way process stacks are handled. This is done by having a special | |
31 | * "init_task" linker map entry.. | |
32 | */ | |
33 | union thread_union init_thread_union __init_task_data = { | |
34 | INIT_THREAD_INFO(init_task) | |
35 | }; | |
36 | ||
37 | /* | |
38 | * Initial task structure. | |
39 | * | |
40 | * All other task structs will be allocated on slabs in fork.c | |
41 | */ | |
42 | struct task_struct init_task = INIT_TASK(init_task); | |
43 | EXPORT_SYMBOL(init_task); | |
44 | ||
45 | /* | |
46 | * per-CPU stack and boot info. | |
47 | */ | |
48 | DEFINE_PER_CPU(unsigned long, boot_sp) = | |
49 | (unsigned long)init_stack + THREAD_SIZE; | |
50 | ||
51 | #ifdef CONFIG_SMP | |
52 | DEFINE_PER_CPU(unsigned long, boot_pc) = (unsigned long)start_kernel; | |
53 | #else | |
54 | /* | |
55 | * The variable must be __initdata since it references __init code. | |
56 | * With CONFIG_SMP it is per-cpu data, which is exempt from validation. | |
57 | */ | |
58 | unsigned long __initdata boot_pc = (unsigned long)start_kernel; | |
59 | #endif |