[mirror_ubuntu-focal-kernel.git] / arch / s390 / include / asm / thread_info.h

/*
 *  S390 version
 *    Copyright IBM Corp. 2002, 2006
 *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
 */

#ifndef _ASM_THREAD_INFO_H
#define _ASM_THREAD_INFO_H

#include <linux/const.h>

/*
 * Size of kernel stack for each process
 */
#define THREAD_SIZE_ORDER 2
#define ASYNC_ORDER  2

#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
#define ASYNC_SIZE  (PAGE_SIZE << ASYNC_ORDER)

#ifndef __ASSEMBLY__
#include <asm/lowcore.h>
#include <asm/page.h>
#include <asm/processor.h>

/*
 * low level task data that entry.S needs immediate access to
 * - this struct should fit entirely inside of one cache line
 * - this struct shares the supervisor stack pages
 * - if the contents of this structure are changed, the assembly constants must also be changed
 */
struct thread_info {
	unsigned long		flags;		/* low level flags */
};

/*
 * macros/functions for gaining access to the thread information structure
 */
#define INIT_THREAD_INFO(tsk)			\
{						\
	.flags		= 0,			\
}

#define init_stack		(init_thread_union.stack)

void arch_release_task_struct(struct task_struct *tsk);
int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);

#endif

/*
 * thread information flags bit numbers
 */
/* _TIF_WORK bits */
#define TIF_NOTIFY_RESUME	0	/* callback before returning to user */
#define TIF_SIGPENDING		1	/* signal pending */
#define TIF_NEED_RESCHED	2	/* rescheduling necessary */
#define TIF_UPROBE		3	/* breakpointed or single-stepping */
#define TIF_GUARDED_STORAGE	4	/* load guarded storage control block */
#define TIF_PATCH_PENDING	5	/* pending live patching update */
#define TIF_PGSTE		6	/* New mm's will use 4K page tables */

#define TIF_31BIT		16	/* 32bit process */
#define TIF_MEMDIE		17	/* is terminating due to OOM killer */
#define TIF_RESTORE_SIGMASK	18	/* restore signal mask in do_signal() */
#define TIF_SINGLE_STEP		19	/* This task is single stepped */
#define TIF_BLOCK_STEP		20	/* This task is block stepped */
#define TIF_UPROBE_SINGLESTEP	21	/* This task is uprobe single stepped */

/* _TIF_TRACE bits */
#define TIF_SYSCALL_TRACE	24	/* syscall trace active */
#define TIF_SYSCALL_AUDIT	25	/* syscall auditing active */
#define TIF_SECCOMP		26	/* secure computing */
#define TIF_SYSCALL_TRACEPOINT	27	/* syscall tracepoint instrumentation */

#define _TIF_NOTIFY_RESUME	_BITUL(TIF_NOTIFY_RESUME)
#define _TIF_SIGPENDING		_BITUL(TIF_SIGPENDING)
#define _TIF_NEED_RESCHED	_BITUL(TIF_NEED_RESCHED)
#define _TIF_UPROBE		_BITUL(TIF_UPROBE)
#define _TIF_GUARDED_STORAGE	_BITUL(TIF_GUARDED_STORAGE)
#define _TIF_PATCH_PENDING	_BITUL(TIF_PATCH_PENDING)

#define _TIF_31BIT		_BITUL(TIF_31BIT)
#define _TIF_SINGLE_STEP	_BITUL(TIF_SINGLE_STEP)

#define _TIF_SYSCALL_TRACE	_BITUL(TIF_SYSCALL_TRACE)
#define _TIF_SYSCALL_AUDIT	_BITUL(TIF_SYSCALL_AUDIT)
#define _TIF_SECCOMP		_BITUL(TIF_SECCOMP)
#define _TIF_SYSCALL_TRACEPOINT	_BITUL(TIF_SYSCALL_TRACEPOINT)

#endif /* _ASM_THREAD_INFO_H */
Commit	Line	Data
1da177e4	1	/*
1da177e4	2	* S390 version
a53c8fab	3	* Copyright IBM Corp. 2002, 2006
1da177e4 LT	4	* Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
	5	*/
	6
	7	#ifndef _ASM_THREAD_INFO_H
	8	#define _ASM_THREAD_INFO_H
	9
92778b99 HC	10	#include <linux/const.h>
92778b99 HC	11
1da177e4 LT	12	/*
	13	* Size of kernel stack for each process
	14	*/
3a890380	15	#define THREAD_SIZE_ORDER 2
1da177e4	16	#define ASYNC_ORDER 2
1da177e4	17
3a890380	18	#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
1da177e4 LT	19	#define ASYNC_SIZE (PAGE_SIZE << ASYNC_ORDER)
	20
	21	#ifndef __ASSEMBLY__
1da177e4	22	#include <asm/lowcore.h>
25097bf1 CE	23	#include <asm/page.h>
25097bf1 CE	24	#include <asm/processor.h>
1da177e4 LT	25
	26	/*
	27	* low level task data that entry.S needs immediate access to
	28	* - this struct should fit entirely inside of one cache line
	29	* - this struct shares the supervisor stack pages
	30	* - if the contents of this structure are changed, the assembly constants must also be changed
	31	*/
	32	struct thread_info {
1da177e4	33	unsigned long flags; /* low level flags */
1da177e4 LT	34	};
	35
	36	/*
	37	* macros/functions for gaining access to the thread information structure
	38	*/
	39	#define INIT_THREAD_INFO(tsk) \
	40	{ \
1da177e4	41	.flags = 0, \
1da177e4 LT	42	}
1da177e4 LT	43
1da177e4 LT	44	#define init_stack (init_thread_union.stack)
1da177e4 LT	45
2a5e91c3	46	void arch_release_task_struct(struct task_struct *tsk);
521b00cd	47	int arch_dup_task_struct(struct task_struct dst, struct task_struct src);
2a5e91c3	48
1da177e4 LT	49	#endif
	50
	51	/*
	52	* thread information flags bit numbers
	53	*/
30d64f19	54	/* _TIF_WORK bits */
d3a73acb MS	55	#define TIF_NOTIFY_RESUME 0 /* callback before returning to user */
	56	#define TIF_SIGPENDING 1 /* signal pending */
	57	#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
916cda1a MS	58	#define TIF_UPROBE 3 /* breakpointed or single-stepping */
916cda1a MS	59	#define TIF_GUARDED_STORAGE 4 /* load guarded storage control block */
76f1948a	60	#define TIF_PATCH_PENDING 5 /* pending live patching update */
23fefe11	61	#define TIF_PGSTE 6 /* New mm's will use 4K page tables */
30d64f19	62
d3a73acb MS	63	#define TIF_31BIT 16 /* 32bit process */
	64	#define TIF_MEMDIE 17 /* is terminating due to OOM killer */
	65	#define TIF_RESTORE_SIGMASK 18 /* restore signal mask in do_signal() */
	66	#define TIF_SINGLE_STEP 19 /* This task is single stepped */
	67	#define TIF_BLOCK_STEP 20 /* This task is block stepped */
2a0a5b22	68	#define TIF_UPROBE_SINGLESTEP 21 /* This task is uprobe single stepped */
1da177e4	69
30d64f19 JS	70	/* _TIF_TRACE bits */
	71	#define TIF_SYSCALL_TRACE 24 /* syscall trace active */
	72	#define TIF_SYSCALL_AUDIT 25 /* syscall auditing active */
	73	#define TIF_SECCOMP 26 /* secure computing */
	74	#define TIF_SYSCALL_TRACEPOINT 27 /* syscall tracepoint instrumentation */
	75
92778b99 HC	76	#define _TIF_NOTIFY_RESUME _BITUL(TIF_NOTIFY_RESUME)
	77	#define _TIF_SIGPENDING _BITUL(TIF_SIGPENDING)
	78	#define _TIF_NEED_RESCHED _BITUL(TIF_NEED_RESCHED)
30d64f19	79	#define _TIF_UPROBE _BITUL(TIF_UPROBE)
76f1948a	80	#define _TIF_GUARDED_STORAGE _BITUL(TIF_GUARDED_STORAGE)
2f09ca60	81	#define _TIF_PATCH_PENDING _BITUL(TIF_PATCH_PENDING)
30d64f19 JS	82
	83	#define _TIF_31BIT _BITUL(TIF_31BIT)
	84	#define _TIF_SINGLE_STEP _BITUL(TIF_SINGLE_STEP)
	85
92778b99 HC	86	#define _TIF_SYSCALL_TRACE _BITUL(TIF_SYSCALL_TRACE)
	87	#define _TIF_SYSCALL_AUDIT _BITUL(TIF_SYSCALL_AUDIT)
	88	#define _TIF_SECCOMP _BITUL(TIF_SECCOMP)
	89	#define _TIF_SYSCALL_TRACEPOINT _BITUL(TIF_SYSCALL_TRACEPOINT)
1da177e4	90
1da177e4	91	#endif /* _ASM_THREAD_INFO_H */