FM / asm

/usr/src/linux-headers-5.15.0-181/arch/openrisc/include/asm/

/usr/src/linux-headers-5.15.0-181/arch/openrisc/include/asm

Name	Size	Mode	Actions
bitops/	-	0755	rm
asm-offsets.h	35	0644	edit dl rm
atomic.h	3609	0644	edit dl rm
barrier.h	203	0644	edit dl rm
bitops.h	1326	0644	edit dl rm
cache.h	681	0644	edit dl rm
cacheflush.h	2204	0644	edit dl rm
cmpxchg.h	4056	0644	edit dl rm
cpuinfo.h	763	0644	edit dl rm
delay.h	463	0644	edit dl rm
elf.h	1860	0644	edit dl rm
fixmap.h	2596	0644	edit dl rm
futex.h	2293	0644	edit dl rm
io.h	833	0644	edit dl rm
irq.h	561	0644	edit dl rm
irqflags.h	659	0644	edit dl rm
Kbuild	238	0644	edit dl rm
linkage.h	557	0644	edit dl rm
mmu.h	521	0644	edit dl rm
mmu_context.h	1108	0644	edit dl rm
page.h	2288	0644	edit dl rm
pgalloc.h	1831	0644	edit dl rm
pgtable.h	12749	0644	edit dl rm
processor.h	2339	0644	edit dl rm
ptrace.h	3201	0644	edit dl rm
serial.h	928	0644	edit dl rm
setup.h	293	0644	edit dl rm
smp.h	822	0644	edit dl rm
spinlock.h	778	0644	edit dl rm
spinlock_types.h	188	0644	edit dl rm
spr.h	991	0644	edit dl rm
spr_defs.h	23252	0644	edit dl rm
string.h	324	0644	edit dl rm
syscall.h	1658	0644	edit dl rm
syscalls.h	969	0644	edit dl rm
thread_info.h	3787	0644	edit dl rm
time.h	627	0644	edit dl rm
timex.h	707	0644	edit dl rm
tlb.h	651	0644	edit dl rm
tlbflush.h	1844	0644	edit dl rm
uaccess.h	7985	0644	edit dl rm
unwinder.h	557	0644	edit dl rm
vmalloc.h	102	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-181/arch/openrisc/include/asm/thread_info.h (3787B)

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * OpenRISC Linux
 *
 * Linux architectural port borrowing liberally from similar works of
 * others.  All original copyrights apply as per the original source
 * declaration.
 *
 * OpenRISC implementation:
 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
 * et al.
 */

#ifndef _ASM_THREAD_INFO_H
#define _ASM_THREAD_INFO_H

#ifdef __KERNEL__

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

/* THREAD_SIZE is the size of the task_struct/kernel_stack combo.
 * normally, the stack is found by doing something like p + THREAD_SIZE
 * in or1k, a page is 8192 bytes, which seems like a sane size
 */

#define THREAD_SIZE_ORDER 0
#define THREAD_SIZE       (PAGE_SIZE << THREAD_SIZE_ORDER)

/*
 * 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__

typedef unsigned long mm_segment_t;

struct thread_info {
	struct task_struct	*task;		/* main task structure */
	unsigned long		flags;		/* low level flags */
	__u32			cpu;		/* current CPU */
	__s32			preempt_count; /* 0 => preemptable, <0 => BUG */

mm_segment_t		addr_limit; /* thread address space:
					       0-0x7FFFFFFF for user-thead
					       0-0xFFFFFFFF for kernel-thread
					     */
	__u8			supervisor_stack[0];

/* saved context data */
	unsigned long           ksp;
};
#endif

/*
 * macros/functions for gaining access to the thread information structure
 *
 * preempt_count needs to be 1 initially, until the scheduler is functional.
 */
#ifndef __ASSEMBLY__
#define INIT_THREAD_INFO(tsk)				\
{							\
	.task		= &tsk,				\
	.flags		= 0,				\
	.cpu		= 0,				\
	.preempt_count	= INIT_PREEMPT_COUNT,		\
	.addr_limit	= KERNEL_DS,			\
	.ksp            = 0,                            \
}

/* how to get the thread information struct from C */
register struct thread_info *current_thread_info_reg asm("r10");
#define current_thread_info()   (current_thread_info_reg)

#define get_thread_info(ti) get_task_struct((ti)->task)
#define put_thread_info(ti) put_task_struct((ti)->task)

#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_SINGLESTEP		4	/* restore singlestep on return to user
					 * mode
					 */
#define TIF_NOTIFY_SIGNAL	5	/* signal notifications exist */
#define TIF_SYSCALL_TRACEPOINT  8       /* for ftrace syscall instrumentation */
#define TIF_RESTORE_SIGMASK     9
#define TIF_POLLING_NRFLAG	16	/* true if poll_idle() is polling						 * TIF_NEED_RESCHED
					 */
#define TIF_MEMDIE              17

#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_SINGLESTEP		(1<<TIF_SINGLESTEP)
#define _TIF_NOTIFY_SIGNAL	(1<<TIF_NOTIFY_SIGNAL)
#define _TIF_POLLING_NRFLAG	(1<<TIF_POLLING_NRFLAG)

/* Work to do when returning from interrupt/exception */
/* For OpenRISC, this is anything in the LSW other than syscall trace */
#define _TIF_WORK_MASK (0xff & ~(_TIF_SYSCALL_TRACE|_TIF_SINGLESTEP))

#endif /* __KERNEL__ */

#endif /* _ASM_THREAD_INFO_H */

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