1 #ifndef _ASM_M68K_THREAD_INFO_H
2 #define _ASM_M68K_THREAD_INFO_H
8 struct task_struct *task; /* main task structure */
10 struct exec_domain *exec_domain; /* execution domain */
11 int preempt_count; /* 0 => preemptable, <0 => BUG */
12 __u32 cpu; /* should always be 0 on m68k */
13 struct restart_block restart_block;
16 #define PREEMPT_ACTIVE 0x4000000
18 #define INIT_THREAD_INFO(tsk) \
21 .exec_domain = &default_exec_domain, \
22 .preempt_count = INIT_PREEMPT_COUNT, \
24 .fn = do_no_restart_syscall, \
28 /* THREAD_SIZE should be 8k, so handle differently for 4k and 8k machines */
29 #define THREAD_SIZE_ORDER (13 - PAGE_SHIFT)
31 #define init_thread_info (init_task.thread.info)
32 #define init_stack (init_thread_union.stack)
34 #define task_thread_info(tsk) (&(tsk)->thread.info)
35 #define task_stack_page(tsk) ((tsk)->stack)
36 #define current_thread_info() task_thread_info(current)
38 #define __HAVE_THREAD_FUNCTIONS
40 #define setup_thread_stack(p, org) ({ \
41 *(struct task_struct **)(p)->stack = (p); \
42 task_thread_info(p)->task = (p); \
45 #define end_of_stack(p) ((unsigned long *)(p)->stack + 1)
47 /* entry.S relies on these definitions!
48 * bits 0-7 are tested at every exception exit
49 * bits 8-15 are also tested at syscall exit
51 #define TIF_SIGPENDING 6 /* signal pending */
52 #define TIF_NEED_RESCHED 7 /* rescheduling necessary */
53 #define TIF_DELAYED_TRACE 14 /* single step a syscall */
54 #define TIF_SYSCALL_TRACE 15 /* syscall trace active */
56 #define TIF_FREEZE 17 /* thread is freezing for suspend */
58 #endif /* _ASM_M68K_THREAD_INFO_H */