diff options
Diffstat (limited to 'arch/tile/kernel/init_task.c')
-rw-r--r-- | arch/tile/kernel/init_task.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/tile/kernel/init_task.c b/arch/tile/kernel/init_task.c new file mode 100644 index 000000000000..928b31870669 --- /dev/null +++ b/arch/tile/kernel/init_task.c | |||
@@ -0,0 +1,59 @@ | |||
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 | ||