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 0000000..928b318 --- /dev/null +++ b/arch/tile/kernel/init_task.c @@ -0,0 +1,59 @@ +/* + * Copyright 2010 Tilera Corporation. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, version 2. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for + * more details. + */ + +#include <linux/mm.h> +#include <linux/fs.h> +#include <linux/init_task.h> +#include <linux/mqueue.h> +#include <linux/module.h> +#include <linux/start_kernel.h> +#include <linux/uaccess.h> + +static struct signal_struct init_signals = INIT_SIGNALS(init_signals); +static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); + +/* + * Initial thread structure. + * + * We need to make sure that this is THREAD_SIZE aligned due to the + * way process stacks are handled. This is done by having a special + * "init_task" linker map entry.. + */ +union thread_union init_thread_union __init_task_data = { + INIT_THREAD_INFO(init_task) +}; + +/* + * Initial task structure. + * + * All other task structs will be allocated on slabs in fork.c + */ +struct task_struct init_task = INIT_TASK(init_task); +EXPORT_SYMBOL(init_task); + +/* + * per-CPU stack and boot info. + */ +DEFINE_PER_CPU(unsigned long, boot_sp) = + (unsigned long)init_stack + THREAD_SIZE; + +#ifdef CONFIG_SMP +DEFINE_PER_CPU(unsigned long, boot_pc) = (unsigned long)start_kernel; +#else +/* + * The variable must be __initdata since it references __init code. + * With CONFIG_SMP it is per-cpu data, which is exempt from validation. + */ +unsigned long __initdata boot_pc = (unsigned long)start_kernel; +#endif |