forked from Minki/linux
cd6f32aa08
We already had a syscall that did some dcache flushing, but it was not used in practice. Make it MIPS compatible instead so it can do both the DCACHE and ICACHE actions. We have code that wants to be able to use the ICACHE flush mode from userspace so this change enables that. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
/*
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* syscalls.h - Linux syscall interfaces (arch-specific)
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*
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* Copyright (c) 2008 Jaswinder Singh Rajput
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* Copyright 2010 Tilera Corporation. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, version 2.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for
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* more details.
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*/
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#ifndef _ASM_TILE_SYSCALLS_H
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#define _ASM_TILE_SYSCALLS_H
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#include <linux/compiler.h>
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#include <linux/linkage.h>
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#include <linux/signal.h>
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#include <linux/types.h>
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#include <linux/compat.h>
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/* The array of function pointers for syscalls. */
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extern void *sys_call_table[];
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#ifdef CONFIG_COMPAT
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extern void *compat_sys_call_table[];
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#endif
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/*
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* Note that by convention, any syscall which requires the current
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* register set takes an additional "struct pt_regs *" pointer; a
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* _sys_xxx() trampoline in intvec*.S just sets up the pointer and
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* jumps to sys_xxx().
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*/
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/* kernel/sys.c */
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ssize_t sys32_readahead(int fd, u32 offset_lo, u32 offset_hi, u32 count);
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long sys32_fadvise64(int fd, u32 offset_lo, u32 offset_hi,
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u32 len, int advice);
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int sys32_fadvise64_64(int fd, u32 offset_lo, u32 offset_hi,
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u32 len_lo, u32 len_hi, int advice);
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long sys_cacheflush(unsigned long addr, unsigned long len,
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unsigned long flags);
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#ifndef __tilegx__ /* No mmap() in the 32-bit kernel. */
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#define sys_mmap sys_mmap
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#endif
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#ifndef __tilegx__
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/* mm/fault.c */
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long sys_cmpxchg_badaddr(unsigned long address, struct pt_regs *);
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long _sys_cmpxchg_badaddr(unsigned long address);
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#endif
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#ifdef CONFIG_COMPAT
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/* These four are not defined for 64-bit, but serve as "compat" syscalls. */
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long sys_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg);
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long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
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long sys_truncate64(const char __user *path, loff_t length);
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long sys_ftruncate64(unsigned int fd, loff_t length);
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#endif
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/* These are the intvec*.S trampolines. */
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long _sys_sigaltstack(const stack_t __user *, stack_t __user *);
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long _sys_rt_sigreturn(void);
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long _sys_clone(unsigned long clone_flags, unsigned long newsp,
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void __user *parent_tid, void __user *child_tid);
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long _sys_execve(const char __user *filename,
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const char __user *const __user *argv,
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const char __user *const __user *envp);
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#include <asm-generic/syscalls.h>
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#endif /* _ASM_TILE_SYSCALLS_H */
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