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#ifndef _ASM_M68K_THREAD_INFO_H
#define _ASM_M68K_THREAD_INFO_H
#include <asm/types.h>
#include <asm/page.h>
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;
};
#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 task_thread_info(tsk) (&(tsk)->thread.info)
#define task_stack_page(tsk) ((void *)(tsk)->thread_info)
#define current_thread_info() task_thread_info(current)
#define __HAVE_THREAD_FUNCTIONS
#define setup_thread_stack(p, org) ({ \
*(struct task_struct **)(p)->thread_info = (p); \
task_thread_info(p)->task = (p); \
})
#define end_of_stack(p) ((unsigned long *)(p)->thread_info + 1)
/* 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 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 */
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