| #ifndef _LINUX_LMB_H |
| #define _LINUX_LMB_H |
| #ifdef __KERNEL__ |
| |
| /* |
| * Logical memory blocks. |
| * |
| * Copyright (C) 2001 Peter Bergner, IBM Corp. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/mm.h> |
| |
| #define MAX_LMB_REGIONS 128 |
| |
| struct lmb_property { |
| unsigned long base; |
| unsigned long size; |
| }; |
| |
| struct lmb_region { |
| unsigned long cnt; |
| unsigned long size; |
| struct lmb_property region[MAX_LMB_REGIONS+1]; |
| }; |
| |
| struct lmb { |
| unsigned long debug; |
| unsigned long rmo_size; |
| struct lmb_region memory; |
| struct lmb_region reserved; |
| }; |
| |
| extern struct lmb lmb; |
| |
| extern void __init lmb_init(void); |
| extern void __init lmb_analyze(void); |
| extern long __init lmb_add(unsigned long base, unsigned long size); |
| extern long __init lmb_reserve(unsigned long base, unsigned long size); |
| extern unsigned long __init lmb_alloc(unsigned long size, unsigned long align); |
| extern unsigned long __init lmb_alloc_base(unsigned long size, |
| unsigned long align, unsigned long max_addr); |
| extern unsigned long __init __lmb_alloc_base(unsigned long size, |
| unsigned long align, unsigned long max_addr); |
| extern unsigned long __init lmb_phys_mem_size(void); |
| extern unsigned long __init lmb_end_of_DRAM(void); |
| extern void __init lmb_enforce_memory_limit(unsigned long memory_limit); |
| extern int __init lmb_is_reserved(unsigned long addr); |
| |
| extern void lmb_dump_all(void); |
| |
| static inline unsigned long |
| lmb_size_bytes(struct lmb_region *type, unsigned long region_nr) |
| { |
| return type->region[region_nr].size; |
| } |
| static inline unsigned long |
| lmb_size_pages(struct lmb_region *type, unsigned long region_nr) |
| { |
| return lmb_size_bytes(type, region_nr) >> PAGE_SHIFT; |
| } |
| static inline unsigned long |
| lmb_start_pfn(struct lmb_region *type, unsigned long region_nr) |
| { |
| return type->region[region_nr].base >> PAGE_SHIFT; |
| } |
| static inline unsigned long |
| lmb_end_pfn(struct lmb_region *type, unsigned long region_nr) |
| { |
| return lmb_start_pfn(type, region_nr) + |
| lmb_size_pages(type, region_nr); |
| } |
| |
| #include <asm/lmb.h> |
| |
| #endif /* __KERNEL__ */ |
| |
| #endif /* _LINUX_LMB_H */ |