diff options
Diffstat (limited to 'include/asm-m68k/thread_info.h')
| -rw-r--r-- | include/asm-m68k/thread_info.h | 81 |
1 files changed, 9 insertions, 72 deletions
diff --git a/include/asm-m68k/thread_info.h b/include/asm-m68k/thread_info.h index 4fdbf55f95e5..9532ca3c45cb 100644 --- a/include/asm-m68k/thread_info.h +++ b/include/asm-m68k/thread_info.h @@ -6,12 +6,11 @@ struct thread_info { struct task_struct *task; /* main task structure */ + unsigned long flags; struct exec_domain *exec_domain; /* execution domain */ int preempt_count; /* 0 => preemptable, <0 => BUG */ __u32 cpu; /* should always be 0 on m68k */ struct restart_block restart_block; - - __u8 supervisor_stack[0]; }; #define PREEMPT_ACTIVE 0x4000000 @@ -49,76 +48,14 @@ struct thread_info { #define end_of_stack(p) ((unsigned long *)(p)->thread_info + 1) -#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ -#define TIF_DELAYED_TRACE 1 /* single step a syscall */ -#define TIF_NOTIFY_RESUME 2 /* resumption notification requested */ -#define TIF_SIGPENDING 3 /* signal pending */ -#define TIF_NEED_RESCHED 4 /* rescheduling necessary */ -#define TIF_MEMDIE 5 - -extern int thread_flag_fixme(void); - -/* - * flag set/clear/test wrappers - * - pass TIF_xxxx constants to these functions +/* entry.S relies on these definitions! + * bits 0-7 are tested at every exception exit + * bits 8-15 are also tested at syscall exit */ - -#define __set_tsk_thread_flag(tsk, flag, val) ({ \ - switch (flag) { \ - case TIF_SIGPENDING: \ - tsk->thread.work.sigpending = val; \ - break; \ - case TIF_NEED_RESCHED: \ - tsk->thread.work.need_resched = val; \ - break; \ - case TIF_SYSCALL_TRACE: \ - tsk->thread.work.syscall_trace = val; \ - break; \ - case TIF_MEMDIE: \ - tsk->thread.work.memdie = val; \ - break; \ - default: \ - thread_flag_fixme(); \ - } \ -}) - -#define __get_tsk_thread_flag(tsk, flag) ({ \ - int ___res; \ - switch (flag) { \ - case TIF_SIGPENDING: \ - ___res = tsk->thread.work.sigpending; \ - break; \ - case TIF_NEED_RESCHED: \ - ___res = tsk->thread.work.need_resched; \ - break; \ - case TIF_SYSCALL_TRACE: \ - ___res = tsk->thread.work.syscall_trace;\ - break; \ - case TIF_MEMDIE: \ - ___res = tsk->thread.work.memdie;\ - break; \ - default: \ - ___res = thread_flag_fixme(); \ - } \ - ___res; \ -}) - -#define __get_set_tsk_thread_flag(tsk, flag, val) ({ \ - int __res = __get_tsk_thread_flag(tsk, flag); \ - __set_tsk_thread_flag(tsk, flag, val); \ - __res; \ -}) - -#define set_tsk_thread_flag(tsk, flag) __set_tsk_thread_flag(tsk, flag, ~0) -#define clear_tsk_thread_flag(tsk, flag) __set_tsk_thread_flag(tsk, flag, 0) -#define test_and_set_tsk_thread_flag(tsk, flag) __get_set_tsk_thread_flag(tsk, flag, ~0) -#define test_tsk_thread_flag(tsk, flag) __get_tsk_thread_flag(tsk, flag) - -#define set_thread_flag(flag) set_tsk_thread_flag(current, flag) -#define clear_thread_flag(flag) clear_tsk_thread_flag(current, flag) -#define test_thread_flag(flag) test_tsk_thread_flag(current, flag) - -#define set_need_resched() set_thread_flag(TIF_NEED_RESCHED) -#define clear_need_resched() clear_thread_flag(TIF_NEED_RESCHED) +#define TIF_SIGPENDING 6 /* signal pending */ +#define TIF_NEED_RESCHED 7 /* rescheduling necessary */ +#define TIF_DELAYED_TRACE 14 /* single step a syscall */ +#define TIF_SYSCALL_TRACE 15 /* syscall trace active */ +#define TIF_MEMDIE 16 #endif /* _ASM_M68K_THREAD_INFO_H */ |