arch/hexagon/include/asm/syscall.h

   1 /*
   2  * Syscall support for the Hexagon architecture
   3  *
   4  * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 and
   8  * only version 2 as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  18  * 02110-1301, USA.
  19  */
  20
  21 #ifndef _ASM_HEXAGON_SYSCALL_H
  22 #define _ASM_HEXAGON_SYSCALL_H
  23
  24 typedef long (*syscall_fn)(unsigned long, unsigned long,
  25         unsigned long, unsigned long,
  26         unsigned long, unsigned long);
  27
  28 #include <asm-generic/syscalls.h>
  29
  30 extern void *sys_call_table[];
  31
  32 static inline long syscall_get_nr(struct task_struct *task,
  33                                   struct pt_regs *regs)
  34 {
  35         return regs->r06;
  36 }
  37
  38 static inline void syscall_get_arguments(struct task_struct *task,
  39                                          struct pt_regs *regs,
  40                                          unsigned int i, unsigned int n,
  41                                          unsigned long *args)
  42 {
  43         BUG_ON(i + n > 6);
  44         memcpy(args, &(&regs->r00)[i], n * sizeof(args[0]));
  45 }
  46 #endif