[thirdparty/linux.git] / arch / csky / include / asm / thread_info.h

/* SPDX-License-Identifier: GPL-2.0 */
// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.

#ifndef _ASM_CSKY_THREAD_INFO_H
#define _ASM_CSKY_THREAD_INFO_H

#ifndef __ASSEMBLY__

#include <linux/version.h>
#include <asm/types.h>
#include <asm/page.h>
#include <asm/processor.h>
#include <abi/switch_context.h>

struct thread_info {
	struct task_struct	*task;
	void			*dump_exec_domain;
	unsigned long		flags;
	int			preempt_count;
	unsigned long		tp_value;
	mm_segment_t		addr_limit;
	struct restart_block	restart_block;
	struct pt_regs		*regs;
	unsigned int		cpu;
};

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

#define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT)

#define thread_saved_fp(tsk) \
	((unsigned long)(((struct switch_stack *)(tsk->thread.sp))->r8))

#define thread_saved_sp(tsk) \
	((unsigned long)(tsk->thread.sp))

#define thread_saved_lr(tsk) \
	((unsigned long)(((struct switch_stack *)(tsk->thread.sp))->r15))

static inline struct thread_info *current_thread_info(void)
{
	unsigned long sp;

	asm volatile("mov %0, sp\n":"=r"(sp));

	return (struct thread_info *)(sp & ~(THREAD_SIZE - 1));
}

#endif /* !__ASSEMBLY__ */

#define TIF_SIGPENDING		0	/* signal pending */
#define TIF_NOTIFY_RESUME	1       /* callback before returning to user */
#define TIF_NEED_RESCHED	2	/* rescheduling necessary */
#define TIF_UPROBE		3	/* uprobe breakpoint or singlestep */
#define TIF_SYSCALL_TRACE	4	/* syscall trace active */
#define TIF_SYSCALL_TRACEPOINT	5       /* syscall tracepoint instrumentation */
#define TIF_SYSCALL_AUDIT	6	/* syscall auditing */
#define TIF_POLLING_NRFLAG	16	/* poll_idle() is TIF_NEED_RESCHED */
#define TIF_MEMDIE		18      /* is terminating due to OOM killer */
#define TIF_RESTORE_SIGMASK	20	/* restore signal mask in do_signal() */
#define TIF_SECCOMP		21	/* secure computing */

#define _TIF_SIGPENDING		(1 << TIF_SIGPENDING)
#define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
#define _TIF_NEED_RESCHED	(1 << TIF_NEED_RESCHED)
#define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
#define _TIF_SYSCALL_TRACEPOINT	(1 << TIF_SYSCALL_TRACEPOINT)
#define _TIF_SYSCALL_AUDIT	(1 << TIF_SYSCALL_AUDIT)
#define _TIF_UPROBE		(1 << TIF_UPROBE)
#define _TIF_POLLING_NRFLAG	(1 << TIF_POLLING_NRFLAG)
#define _TIF_MEMDIE		(1 << TIF_MEMDIE)
#define _TIF_RESTORE_SIGMASK	(1 << TIF_RESTORE_SIGMASK)
#define _TIF_SECCOMP		(1 << TIF_SECCOMP)

#endif	/* _ASM_CSKY_THREAD_INFO_H */
Commit	Line	Data
e9564df7 GR	1	/* SPDX-License-Identifier: GPL-2.0 */
	2	// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
	3
	4	#ifndef _ASM_CSKY_THREAD_INFO_H
	5	#define _ASM_CSKY_THREAD_INFO_H
	6
	7	#ifndef __ASSEMBLY__
	8
	9	#include <linux/version.h>
	10	#include <asm/types.h>
	11	#include <asm/page.h>
	12	#include <asm/processor.h>
0ea2dc7c	13	#include <abi/switch_context.h>
e9564df7 GR	14
	15	struct thread_info {
	16	struct task_struct *task;
	17	void *dump_exec_domain;
	18	unsigned long flags;
	19	int preempt_count;
	20	unsigned long tp_value;
	21	mm_segment_t addr_limit;
	22	struct restart_block restart_block;
	23	struct pt_regs *regs;
	24	unsigned int cpu;
	25	};
	26
	27	#define INIT_THREAD_INFO(tsk) \
	28	{ \
	29	.task = &tsk, \
	30	.preempt_count = INIT_PREEMPT_COUNT, \
	31	.addr_limit = KERNEL_DS, \
	32	.cpu = 0, \
	33	.restart_block = { \
	34	.fn = do_no_restart_syscall, \
	35	}, \
	36	}
	37
	38	#define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT)
	39
0ea2dc7c	40	#define thread_saved_fp(tsk) \
67002814	41	((unsigned long)(((struct switch_stack *)(tsk->thread.sp))->r8))
0ea2dc7c	42
18c07d23	43	#define thread_saved_sp(tsk) \
67002814	44	((unsigned long)(tsk->thread.sp))
18c07d23 GR	45
18c07d23 GR	46	#define thread_saved_lr(tsk) \
67002814	47	((unsigned long)(((struct switch_stack *)(tsk->thread.sp))->r15))
18c07d23	48
e9564df7 GR	49	static inline struct thread_info *current_thread_info(void)
	50	{
	51	unsigned long sp;
	52
	53	asm volatile("mov %0, sp\n":"=r"(sp));
	54
	55	return (struct thread_info *)(sp & ~(THREAD_SIZE - 1));
	56	}
	57
	58	#endif /* !__ASSEMBLY__ */
	59
e9564df7 GR	60	#define TIF_SIGPENDING 0 /* signal pending */
	61	#define TIF_NOTIFY_RESUME 1 /* callback before returning to user */
	62	#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
bd11aabd GR	63	#define TIF_UPROBE 3 /* uprobe breakpoint or singlestep */
	64	#define TIF_SYSCALL_TRACE 4 /* syscall trace active */
	65	#define TIF_SYSCALL_TRACEPOINT 5 /* syscall tracepoint instrumentation */
	66	#define TIF_SYSCALL_AUDIT 6 /* syscall auditing */
e9564df7 GR	67	#define TIF_POLLING_NRFLAG 16 /* poll_idle() is TIF_NEED_RESCHED */
e9564df7 GR	68	#define TIF_MEMDIE 18 /* is terminating due to OOM killer */
e9564df7 GR	69	#define TIF_RESTORE_SIGMASK 20 /* restore signal mask in do_signal() */
	70	#define TIF_SECCOMP 21 /* secure computing */
	71
2f7932b0 GR	72	#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
	73	#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
	74	#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
	75	#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
	76	#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
	77	#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
8f6bb793	78	#define _TIF_UPROBE (1 << TIF_UPROBE)
2f7932b0	79	#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
e9564df7	80	#define _TIF_MEMDIE (1 << TIF_MEMDIE)
2f7932b0 GR	81	#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
2f7932b0 GR	82	#define _TIF_SECCOMP (1 << TIF_SECCOMP)
e9564df7 GR	83
e9564df7 GR	84	#endif /* _ASM_CSKY_THREAD_INFO_H */