404

[ Avaa Bypassed ]




Upload:

Command:

botdev@3.19.70.25: ~ $
/*
 * Copyright (C) 2009 Chen Liqin <liqin.chen@sunplusct.com>
 * Copyright (C) 2012 Regents of the University of California
 * Copyright (C) 2017 SiFive
 *
 *   This program is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU General Public License
 *   as published by the Free Software Foundation, version 2.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 */

#ifndef _ASM_RISCV_THREAD_INFO_H
#define _ASM_RISCV_THREAD_INFO_H

#include <asm/page.h>
#include <linux/const.h>

/* thread information allocation */
#ifdef CONFIG_64BIT
#define THREAD_SIZE_ORDER	(2)
#else
#define THREAD_SIZE_ORDER	(1)
#endif
#define THREAD_SIZE		(PAGE_SIZE << THREAD_SIZE_ORDER)

#ifndef __ASSEMBLY__

#include <asm/processor.h>
#include <asm/csr.h>

typedef unsigned long mm_segment_t;

/*
 * low level task data that entry.S needs immediate access to
 * - this struct should fit entirely inside of one cache line
 * - if the members of this struct changes, the assembly constants
 *   in asm-offsets.c must be updated accordingly
 * - thread_info is included in task_struct at an offset of 0.  This means that
 *   tp points to both thread_info and task_struct.
 */
struct thread_info {
	unsigned long		flags;		/* low level flags */
	int                     preempt_count;  /* 0=>preemptible, <0=>BUG */
	mm_segment_t		addr_limit;
	/*
	 * These stack pointers are overwritten on every system call or
	 * exception.  SP is also saved to the stack it can be recovered when
	 * overwritten.
	 */
	long			kernel_sp;	/* Kernel stack pointer */
	long			user_sp;	/* User stack pointer */
	int			cpu;
};

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

#define init_stack		(init_thread_union.stack)

#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 lowest half-word
 * - other flags in upper half-word(s)
 */
#define TIF_SYSCALL_TRACE	0	/* syscall trace active */
#define TIF_NOTIFY_RESUME	1	/* callback before returning to user */
#define TIF_SIGPENDING		2	/* signal pending */
#define TIF_NEED_RESCHED	3	/* rescheduling necessary */
#define TIF_RESTORE_SIGMASK	4	/* restore signal mask in do_signal() */
#define TIF_MEMDIE		5	/* is terminating due to OOM killer */
#define TIF_SYSCALL_TRACEPOINT  6       /* syscall tracepoint instrumentation */

#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 \
	(_TIF_NOTIFY_RESUME | _TIF_SIGPENDING | _TIF_NEED_RESCHED)

#endif /* _ASM_RISCV_THREAD_INFO_H */

Filemanager

Name Type Size Permission Actions
Kbuild File 1.37 KB 0644
asm-offsets.h File 35 B 0644
asm-prototypes.h File 176 B 0644
asm.h File 1.78 KB 0644
atomic.h File 11.31 KB 0644
barrier.h File 2.59 KB 0644
bitops.h File 6.23 KB 0644
bug.h File 2.12 KB 0644
cache.h File 745 B 0644
cacheflush.h File 1.7 KB 0644
cmpxchg.h File 3.35 KB 0644
compat.h File 924 B 0644
csr.h File 3.8 KB 0644
current.h File 1.27 KB 0644
delay.h File 881 B 0644
dma-mapping.h File 1.19 KB 0644
elf.h File 2.3 KB 0644
fence.h File 279 B 0644
hwcap.h File 1013 B 0644
io.h File 11.81 KB 0644
irq.h File 841 B 0644
irqflags.h File 1.54 KB 0644
kprobes.h File 679 B 0644
linkage.h File 677 B 0644
mmu.h File 829 B 0644
mmu_context.h File 3.14 KB 0644
page.h File 3.76 KB 0644
pci.h File 1.16 KB 0644
pgalloc.h File 3.06 KB 0644
pgtable-32.h File 870 B 0644
pgtable-64.h File 2.08 KB 0644
pgtable-bits.h File 1.81 KB 0644
pgtable.h File 11.17 KB 0644
processor.h File 2.44 KB 0644
ptrace.h File 2.69 KB 0644
sbi.h File 2.6 KB 0644
smp.h File 1.59 KB 0644
spinlock.h File 2.85 KB 0644
spinlock_types.h File 906 B 0644
string.h File 838 B 0644
switch_to.h File 1.86 KB 0644
syscall.h File 2.59 KB 0644
thread_info.h File 3.11 KB 0644
timex.h File 1.29 KB 0644
tlb.h File 717 B 0644
tlbflush.h File 1.83 KB 0644
uaccess.h File 14 KB 0644
unistd.h File 638 B 0644
vdso.h File 1.49 KB 0644
word-at-a-time.h File 1.48 KB 0644