diff options
Diffstat (limited to 'arch/ia64/include/asm/mmzone.h')
| -rw-r--r-- | arch/ia64/include/asm/mmzone.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/mmzone.h b/arch/ia64/include/asm/mmzone.h new file mode 100644 index 00000000000..34efe88eb84 --- /dev/null +++ b/arch/ia64/include/asm/mmzone.h @@ -0,0 +1,50 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (c) 2000,2003 Silicon Graphics, Inc. All rights reserved. + * Copyright (c) 2002 NEC Corp. + * Copyright (c) 2002 Erich Focht <efocht@ess.nec.de> + * Copyright (c) 2002 Kimio Suganuma <k-suganuma@da.jp.nec.com> + */ +#ifndef _ASM_IA64_MMZONE_H +#define _ASM_IA64_MMZONE_H + +#include <linux/numa.h> +#include <asm/page.h> +#include <asm/meminit.h> + +#ifdef CONFIG_NUMA + +static inline int pfn_to_nid(unsigned long pfn) +{ +#ifdef CONFIG_NUMA + extern int paddr_to_nid(unsigned long); + int nid = paddr_to_nid(pfn << PAGE_SHIFT); + if (nid < 0) + return 0; + else + return nid; +#else + return 0; +#endif +} + +#ifdef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID +extern int early_pfn_to_nid(unsigned long pfn); +#endif + +#ifdef CONFIG_IA64_DIG /* DIG systems are small */ +# define MAX_PHYSNODE_ID 8 +# define NR_NODE_MEMBLKS (MAX_NUMNODES * 8) +#else /* sn2 is the biggest case, so we use that if !DIG */ +# define MAX_PHYSNODE_ID 2048 +# define NR_NODE_MEMBLKS (MAX_NUMNODES * 4) +#endif + +#else /* CONFIG_NUMA */ +# define NR_NODE_MEMBLKS (MAX_NUMNODES * 4) +#endif /* CONFIG_NUMA */ + +#endif /* _ASM_IA64_MMZONE_H */ |