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/* SPDX-License-Identifier: GPL-2.0 */
/* thread_info.h: CRIS low-level thread information
 *
 * Copyright (C) 2002  David Howells (dhowells@redhat.com)
 * - Incorporating suggestions made by Linus Torvalds and Dave Miller
 * 
 * CRIS port by Axis Communications
 */

#ifndef _ASM_THREAD_INFO_H
#define _ASM_THREAD_INFO_H

#ifdef __KERNEL__

#ifndef __ASSEMBLY__
#include <asm/types.h>
#include <asm/processor.h>
#include <arch/thread_info.h>
#include <asm/segment.h>
#endif


/*
 * 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
 */
#ifndef __ASSEMBLY__
struct thread_info {
	struct task_struct	*task;		/* main task structure */
	unsigned long		flags;		/* low level flags */
	__u32			cpu;		/* current CPU */
	int			preempt_count;	/* 0 => preemptable, <0 => BUG */
	__u32			tls;		/* TLS for this thread */

	mm_segment_t		addr_limit;	/* thread address space:
					 	   0-0xBFFFFFFF for user-thead
						   0-0xFFFFFFFF for kernel-thread
						*/
	__u8			supervisor_stack[0];
};

#endif

/*
 * macros/functions for gaining access to the thread information structure
 */
#ifndef __ASSEMBLY__
#define INIT_THREAD_INFO(tsk)				\
{							\
	.task		= &tsk,				\
	.flags		= 0,				\
	.cpu		= 0,				\
	.preempt_count	= INIT_PREEMPT_COUNT,		\
	.addr_limit	= KERNEL_DS,			\
}

#define init_thread_info	(init_thread_union.thread_info)

#endif /* !__ASSEMBLY__ */

/*
 * thread information flags
 * - these are process state flags that various assembly files may need to access
 * - pending work-to-be-done flags are in LSW
 * - other flags in MSW
 */
#define TIF_SYSCALL_TRACE	0	/* syscall trace active */
#define TIF_NOTIFY_RESUME	1	/* resumption notification requested */
#define TIF_SIGPENDING		2	/* signal pending */
#define TIF_NEED_RESCHED	3	/* rescheduling necessary */
#define TIF_RESTORE_SIGMASK	9	/* restore signal mask in do_signal() */
#define TIF_MEMDIE		17	/* is terminating due to OOM killer */

#define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
#define _TIF_NOTIFY_RESUME	(1<<TIF_NOTIFY_RESUME)
#define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)
#define _TIF_NEED_RESCHED	(1<<TIF_NEED_RESCHED)

#define _TIF_WORK_MASK		0x0000FFFE	/* work to do on interrupt/exception return */
#define _TIF_ALLWORK_MASK	0x0000FFFF	/* work to do on any return to u-space */

#endif /* __KERNEL__ */

#endif /* _ASM_THREAD_INFO_H */

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Name Type Size Permission Actions
Kbuild File 729 B 0644
asm-offsets.h File 35 B 0644
axisflashmap.h File 1.92 KB 0644
bitops.h File 1.27 KB 0644
bug.h File 108 B 0644
bugs.h File 300 B 0644
cache.h File 133 B 0644
cacheflush.h File 1.3 KB 0644
checksum.h File 2.01 KB 0644
delay.h File 537 B 0644
dma-mapping.h File 399 B 0644
dma.h File 458 B 0644
eshlibld.h File 3.49 KB 0644
etraxi2c.h File 1019 B 0644
fasttimer.h File 1.12 KB 0644
fb.h File 244 B 0644
ftrace.h File 12 B 0644
hw_irq.h File 53 B 0644
io.h File 732 B 0644
irq.h File 194 B 0644
irqflags.h File 27 B 0644
mmu.h File 155 B 0644
mmu_context.h File 927 B 0644
page.h File 2.52 KB 0644
pci.h File 1.05 KB 0644
pgalloc.h File 1.36 KB 0644
pgtable.h File 9.58 KB 0644
processor.h File 1.82 KB 0644
ptrace.h File 393 B 0644
segment.h File 148 B 0644
serial.h File 211 B 0644
shmparam.h File 232 B 0644
signal.h File 505 B 0644
stacktrace.h File 213 B 0644
string.h File 508 B 0644
swab.h File 159 B 0644
switch_to.h File 449 B 0644
termios.h File 1.71 KB 0644
thread_info.h File 2.47 KB 0644
timex.h File 433 B 0644
tlb.h File 453 B 0644
tlbflush.h File 1.09 KB 0644
uaccess.h File 9.59 KB 0644
ucontext.h File 322 B 0644
unaligned.h File 345 B 0644
unistd.h File 972 B 0644
user.h File 2.14 KB 0644