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#ifndef _ASM_PARISC_THREAD_INFO_H #define _ASM_PARISC_THREAD_INFO_H #ifdef __KERNEL__ #ifndef __ASSEMBLY__ #include <asm/processor.h> struct thread_info { struct task_struct *task; /* main task structure */ struct exec_domain *exec_domain;/* execution domain */ unsigned long flags; /* thread_info flags (see TIF_*) */ mm_segment_t addr_limit; /* user-level address space limit */ __u32 cpu; /* current CPU */ int preempt_count; /* 0=premptable, <0=BUG; will also serve as bh-counter */ struct restart_block restart_block; }; #define INIT_THREAD_INFO(tsk) \ { \ .task = &tsk, \ .exec_domain = &default_exec_domain, \ .flags = 0, \ .cpu = 0, \ .addr_limit = KERNEL_DS, \ .preempt_count = 1, \ .restart_block = { \ .fn = do_no_restart_syscall \ } \ } #define init_thread_info (init_thread_union.thread_info) #define init_stack (init_thread_union.stack) /* thread information allocation */ #define THREAD_SIZE_ORDER 2 /* Be sure to hunt all references to this down when you change the size of * the kernel stack */ #define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) #define THREAD_SHIFT (PAGE_SHIFT + THREAD_SIZE_ORDER) /* how to get the thread information struct from C */ #define current_thread_info() ((struct thread_info *)mfctl(30)) #endif /* !__ASSEMBLY */ #define PREEMPT_ACTIVE_BIT 28 #define PREEMPT_ACTIVE (1 << PREEMPT_ACTIVE_BIT) /* * thread information flags */ #define TIF_SYSCALL_TRACE 0 /* syscall trace active */ #define TIF_SIGPENDING 1 /* signal pending */ #define TIF_NEED_RESCHED 2 /* rescheduling necessary */ #define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling TIF_NEED_RESCHED */ #define TIF_32BIT 4 /* 32 bit binary */ #define TIF_MEMDIE 5 #define TIF_RESTORE_SIGMASK 6 /* restore saved signal mask */ #define TIF_FREEZE 7 /* is freezing for suspend */ #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) #define _TIF_SIGPENDING (1 << TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) #define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) #define _TIF_32BIT (1 << TIF_32BIT) #define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK) #define _TIF_FREEZE (1 << TIF_FREEZE) #define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | \ _TIF_NEED_RESCHED | _TIF_RESTORE_SIGMASK) #endif /* __KERNEL__ */ #endif /* _ASM_PARISC_THREAD_INFO_H */ |