/* * Copyright (C) 2008-2009 Red Hat, Inc.  All rights reserved. * Copyright 2010 Tilera Corporation. All Rights Reserved. * *   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, GOOD TITLE or *   NON INFRINGEMENT.  See the GNU General Public License for *   more details. * * See asm-generic/syscall.h for descriptions of what we must do here. */ #ifndef _ASM_TILE_SYSCALL_H#define _ASM_TILE_SYSCALL_H #include <linux/sched.h>#include <linux/err.h>#include <arch/abi.h> /* The array of function pointers for syscalls. */extern void *sys_call_table[];#ifdef CONFIG_COMPATextern void *compat_sys_call_table[];#endif /* * Only the low 32 bits of orig_r0 are meaningful, so we return int. * This importantly ignores the high bits on 64-bit, so comparisons * sign-extend the low 32 bits. */static inline int syscall_get_nr(struct task_struct *t, struct pt_regs *regs){	return regs->regs[TREG_SYSCALL_NR];} static inline void syscall_rollback(struct task_struct *task,				    struct pt_regs *regs){	regs->regs[0] = regs->orig_r0;} static inline long syscall_get_error(struct task_struct *task,				     struct pt_regs *regs){	unsigned long error = regs->regs[0];	return IS_ERR_VALUE(error) ? error : 0;} static inline long syscall_get_return_value(struct task_struct *task,					    struct pt_regs *regs){	return regs->regs[0];} static inline void syscall_set_return_value(struct task_struct *task,					    struct pt_regs *regs,					    int error, long val){	regs->regs[0] = (long) error ?: val;} static inline void syscall_get_arguments(struct task_struct *task,					 struct pt_regs *regs,					 unsigned int i, unsigned int n,					 unsigned long *args){	BUG_ON(i + n > 6);	memcpy(args, &regs[i], n * sizeof(args[0]));} static inline void syscall_set_arguments(struct task_struct *task,					 struct pt_regs *regs,					 unsigned int i, unsigned int n,					 const unsigned long *args){	BUG_ON(i + n > 6);	memcpy(&regs[i], args, n * sizeof(args[0]));} #endif	/* _ASM_TILE_SYSCALL_H */