You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
118 lines
3.5 KiB
118 lines
3.5 KiB
#ifndef _ASM_M68K_THREAD_INFO_H
|
|
#define _ASM_M68K_THREAD_INFO_H
|
|
|
|
#include <asm/types.h>
|
|
#include <asm/processor.h>
|
|
#include <asm/page.h>
|
|
|
|
struct thread_info {
|
|
struct task_struct *task; /* main task structure */
|
|
struct exec_domain *exec_domain; /* execution domain */
|
|
__s32 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
|
|
|
|
#define INIT_THREAD_INFO(tsk) \
|
|
{ \
|
|
.task = &tsk, \
|
|
.exec_domain = &default_exec_domain, \
|
|
.restart_block = { \
|
|
.fn = do_no_restart_syscall, \
|
|
}, \
|
|
}
|
|
|
|
/* THREAD_SIZE should be 8k, so handle differently for 4k and 8k machines */
|
|
#if PAGE_SHIFT == 13 /* 8k machines */
|
|
#define alloc_thread_info(tsk) ((struct thread_info *)__get_free_pages(GFP_KERNEL,0))
|
|
#define free_thread_info(ti) free_pages((unsigned long)(ti),0)
|
|
#else /* otherwise assume 4k pages */
|
|
#define alloc_thread_info(tsk) ((struct thread_info *)__get_free_pages(GFP_KERNEL,1))
|
|
#define free_thread_info(ti) free_pages((unsigned long)(ti),1)
|
|
#endif /* PAGE_SHIFT == 13 */
|
|
|
|
//#define init_thread_info (init_task.thread.info)
|
|
#define init_stack (init_thread_union.stack)
|
|
|
|
#define current_thread_info() (current->thread_info)
|
|
|
|
|
|
#define __HAVE_THREAD_FUNCTIONS
|
|
|
|
#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
|
|
*/
|
|
|
|
#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)
|
|
|
|
#endif /* _ASM_M68K_THREAD_INFO_H */
|
|
|