release/src/linux/linux/include/asm-arm/arch-at91rm9200/vmalloc.h

   1 /*
   2  * linux/include/asm-arm/arch-at91rm9200/vmalloc.h
   3  *
   4  *  Copyright (C) 2003 SAN People
   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 as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #ifndef __ASM_ARCH_VMALLOC_H
  22 #define __ASM_ARCH_VMALLOC_H
  23
  24 /*
  25  * Just any arbitrary offset to the start of the vmalloc VM area: the
  26  * current 8MB value just means that there will be a 8MB "hole" after the
  27  * physical memory until the kernel virtual memory starts.  That means that
  28  * any out-of-bounds memory accesses will hopefully be caught.
  29  * The vmalloc() routines leaves a hole of 4kB between each vmalloced
  30  * area for the same reason. ;)
  31  */
  32
  33 #define VMALLOC_OFFSET          (8*1024*1024)
  34 #define VMALLOC_START           (((unsigned long)high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))
  35 #define VMALLOC_VMADDR(x)       ((unsigned long)(x))
  36 #define VMALLOC_END             (AT91C_IO_VIRT_BASE-1)
  37
  38 #endif