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powerpc: Merge in the ppc64 version of the prom code.

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This brings in the ppc64 version of prom_init.c, prom.c and btext.c
and makes them work for ppc32.  This also brings in the new calling
convention, where the first entry to the kernel (with r5 != 0) goes
to the prom_init code, which then restarts from the beginning (with
r5 == 0) after it has done its stuff.

For now this also brings in the ppc32 version of setup.c.  It also
merges lmb.h.

Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Paul Mackerras
2005-10-06 12:06:20 +10:00
parent b85a046af3
commit 9b6b563c0d
15 changed files with 6507 additions and 48 deletions
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81
include/asm-powerpc/lmb.h Normal file
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#ifndef _PPC64_LMB_H
#define _PPC64_LMB_H
/*
* 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
#define LMB_ALLOC_ANYWHERE 0
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, unsigned long);
extern long __init lmb_reserve(unsigned long, unsigned long);
extern unsigned long __init lmb_alloc(unsigned long, unsigned long);
extern unsigned long __init lmb_alloc_base(unsigned long, unsigned long,
unsigned long);
extern unsigned long __init lmb_phys_mem_size(void);
extern unsigned long __init lmb_end_of_DRAM(void);
extern unsigned long __init lmb_abs_to_phys(unsigned long);
extern void __init lmb_enforce_memory_limit(unsigned long);
extern void lmb_dump_all(void);
extern unsigned long io_hole_start;
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 /* _PPC64_LMB_H */