1 /* 2 * linux/include/asm-arm/arch-rpc/vmalloc.h 3 * 4 * Copyright (C) 1997 Russell King 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 as 8 * published by the Free Software Foundation. 9 */ 10 11 /* 12 * Just any arbitrary offset to the start of the vmalloc VM area: the 13 * current 8MB value just means that there will be a 8MB "hole" after the 14 * physical memory until the kernel virtual memory starts. That means that 15 * any out-of-bounds memory accesses will hopefully be caught. 16 * The vmalloc() routines leaves a hole of 4kB between each vmalloced 17 * area for the same reason. ;) 18 */ 19 #define VMALLOC_OFFSET (8*1024*1024) 20 #define VMALLOC_START (((unsigned long)high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1)) 21 #define VMALLOC_VMADDR(x) ((unsigned long)(x)) 22 #define VMALLOC_END (PAGE_OFFSET + 0x1c000000) 23