f8642ebee8
In mm_init_ppc64() we calculate the location of the "IO hole", but then no one ever looks at the value. So don't bother. That's actually all mm_init_ppc64() does, so get rid of it too. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
#ifndef _PPC64_LMB_H
|
|
#define _PPC64_LMB_H
|
|
#ifdef __KERNEL__
|
|
|
|
/*
|
|
* Definitions for talking to the Open Firmware PROM on
|
|
* Power Macintosh computers.
|
|
*
|
|
* 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 <asm/prom.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 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);
|
|
}
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* _PPC64_LMB_H */
|