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[LIB]: Make PowerPC LMB code generic so sparc64 can use it too.

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2008-02-13 16:56:49 -08:00
parent e760e716d4
commit d9b2b2a277
33 changed files with 161 additions and 117 deletions
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83
include/linux/lmb.h Normal file
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#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 */