[linux-2.6-block.git] / arch / parisc / include / asm / thread_info.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_PARISC_THREAD_INFO_H
#define _ASM_PARISC_THREAD_INFO_H

#ifdef __KERNEL__

#ifndef __ASSEMBLY__
#include <asm/processor.h>
#include <asm/special_insns.h>

struct thread_info {
	struct task_struct *task;	/* main task structure */
	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 */
};

#define INIT_THREAD_INFO(tsk)			\
{						\
	.task		= &tsk,			\
	.flags		= 0,			\
	.cpu		= 0,			\
	.addr_limit	= KERNEL_DS,		\
	.preempt_count	= INIT_PREEMPT_COUNT,	\
}

#define init_thread_info        (init_thread_union.thread_info)
#define init_stack              (init_thread_union.stack)

/* how to get the thread information struct from C */
#define current_thread_info()	((struct thread_info *)mfctl(30))

#endif /* !__ASSEMBLY */

/* thread information allocation */

#define THREAD_SIZE_ORDER	3 /* PA-RISC requires at least 32k stack */
/* 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)

/*
 * 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	/* is terminating due to OOM killer */
#define TIF_SYSCALL_AUDIT	7	/* syscall auditing active */
#define TIF_NOTIFY_RESUME	8	/* callback before returning to user */
#define TIF_SINGLESTEP		9	/* single stepping? */
#define TIF_BLOCKSTEP		10	/* branch stepping? */
#define TIF_SECCOMP		11	/* secure computing */
#define TIF_SYSCALL_TRACEPOINT	12	/* syscall tracepoint instrumentation */

#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_SYSCALL_AUDIT	(1 << TIF_SYSCALL_AUDIT)
#define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
#define _TIF_SINGLESTEP		(1 << TIF_SINGLESTEP)
#define _TIF_BLOCKSTEP		(1 << TIF_BLOCKSTEP)
#define _TIF_SECCOMP		(1 << TIF_SECCOMP)
#define _TIF_SYSCALL_TRACEPOINT	(1 << TIF_SYSCALL_TRACEPOINT)

#define _TIF_USER_WORK_MASK     (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | \
                                 _TIF_NEED_RESCHED)
#define _TIF_SYSCALL_TRACE_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP |	\
				 _TIF_BLOCKSTEP | _TIF_SYSCALL_AUDIT | \
				 _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT)

#ifdef CONFIG_64BIT
# ifdef CONFIG_COMPAT
#  define is_32bit_task()	(test_thread_flag(TIF_32BIT))
# else
#  define is_32bit_task()	(0)
# endif
#else
# define is_32bit_task()	(1)
#endif

#endif /* __KERNEL__ */

#endif /* _ASM_PARISC_THREAD_INFO_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	#ifndef _ASM_PARISC_THREAD_INFO_H
	3	#define _ASM_PARISC_THREAD_INFO_H
	4
	5	#ifdef __KERNEL__
	6
	7	#ifndef __ASSEMBLY__
	8	#include <asm/processor.h>
527dcdcc	9	#include <asm/special_insns.h>
1da177e4 LT	10
	11	struct thread_info {
	12	struct task_struct task; / main task structure */
1da177e4 LT	13	unsigned long flags; /* thread_info flags (see TIF_) /
	14	mm_segment_t addr_limit; /* user-level address space limit */
	15	__u32 cpu; /* current CPU */
dcd497f9	16	int preempt_count; /* 0=premptable, <0=BUG; will also serve as bh-counter */
1da177e4 LT	17	};
	18
	19	#define INIT_THREAD_INFO(tsk) \
	20	{ \
	21	.task = &tsk, \
1da177e4 LT	22	.flags = 0, \
	23	.cpu = 0, \
	24	.addr_limit = KERNEL_DS, \
c99e6efe	25	.preempt_count = INIT_PREEMPT_COUNT, \
1da177e4 LT	26	}
	27
	28	#define init_thread_info (init_thread_union.thread_info)
	29	#define init_stack (init_thread_union.stack)
	30
f32ed395 TA	31	/* how to get the thread information struct from C */
	32	#define current_thread_info() ((struct thread_info *)mfctl(30))
	33
	34	#endif /* !__ASSEMBLY */
	35
1da177e4 LT	36	/* thread information allocation */
1da177e4 LT	37
8f8201df	38	#define THREAD_SIZE_ORDER 3 /* PA-RISC requires at least 32k stack */
1da177e4 LT	39	/* Be sure to hunt all references to this down when you change the size of
1da177e4 LT	40	* the kernel stack */
b69c49b7 FT	41	#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
b69c49b7 FT	42	#define THREAD_SHIFT (PAGE_SHIFT + THREAD_SIZE_ORDER)
1da177e4	43
1da177e4 LT	44	/*
	45	* thread information flags
	46	*/
	47	#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
a583f1b5 SE	48	#define TIF_SIGPENDING 1 /* signal pending */
	49	#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
	50	#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling TIF_NEED_RESCHED */
	51	#define TIF_32BIT 4 /* 32 bit binary */
0ddc9324	52	#define TIF_MEMDIE 5 /* is terminating due to OOM killer */
527973c8	53	#define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */
d0420c83	54	#define TIF_NOTIFY_RESUME 8 /* callback before returning to user */
ecd3d4bc KM	55	#define TIF_SINGLESTEP 9 /* single stepping? */
ecd3d4bc KM	56	#define TIF_BLOCKSTEP 10 /* branch stepping? */
c90f0694	57	#define TIF_SECCOMP 11 /* secure computing */
fc79168a	58	#define TIF_SYSCALL_TRACEPOINT 12 /* syscall tracepoint instrumentation */
1da177e4 LT	59
1da177e4 LT	60	#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
1da177e4 LT	61	#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
	62	#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
	63	#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
	64	#define _TIF_32BIT (1 << TIF_32BIT)
527973c8	65	#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
d0420c83	66	#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
ecd3d4bc KM	67	#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
ecd3d4bc KM	68	#define _TIF_BLOCKSTEP (1 << TIF_BLOCKSTEP)
c90f0694	69	#define _TIF_SECCOMP (1 << TIF_SECCOMP)
fc79168a	70	#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
1da177e4	71
d0420c83	72	#define _TIF_USER_WORK_MASK (_TIF_SIGPENDING \| _TIF_NOTIFY_RESUME \| \
6fd84c08	73	_TIF_NEED_RESCHED)
64482bd8	74	#define _TIF_SYSCALL_TRACE_MASK (_TIF_SYSCALL_TRACE \| _TIF_SINGLESTEP \| \
c90f0694	75	_TIF_BLOCKSTEP \| _TIF_SYSCALL_AUDIT \| \
fc79168a	76	_TIF_SECCOMP \| _TIF_SYSCALL_TRACEPOINT)
1da177e4	77
9dabf60d HD	78	#ifdef CONFIG_64BIT
	79	# ifdef CONFIG_COMPAT
	80	# define is_32bit_task() (test_thread_flag(TIF_32BIT))
	81	# else
	82	# define is_32bit_task() (0)
	83	# endif
	84	#else
	85	# define is_32bit_task() (1)
	86	#endif
	87
1da177e4 LT	88	#endif /* __KERNEL__ */
	89
	90	#endif /* _ASM_PARISC_THREAD_INFO_H */