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author | Paul Mackerras <paulus@samba.org> | 2005-10-06 12:06:20 +1000 |
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committer | Paul Mackerras <paulus@samba.org> | 2005-10-06 12:06:20 +1000 |
commit | 9b6b563c0d2d25ecc3111916031aa7255543fbfb (patch) | |
tree | 07fd029308055461caa157d15a88c01861efc6bb /include/asm-powerpc/lmb.h | |
parent | b85a046af3a260e079505e8023ccd10e01cf4f2b (diff) | |
download | linux-9b6b563c0d2d25ecc3111916031aa7255543fbfb.tar.gz linux-9b6b563c0d2d25ecc3111916031aa7255543fbfb.tar.bz2 linux-9b6b563c0d2d25ecc3111916031aa7255543fbfb.zip |
powerpc: Merge in the ppc64 version of the prom code.
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>
Diffstat (limited to 'include/asm-powerpc/lmb.h')
-rw-r--r-- | include/asm-powerpc/lmb.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/include/asm-powerpc/lmb.h b/include/asm-powerpc/lmb.h new file mode 100644 index 000000000000..ea0afe343545 --- /dev/null +++ b/include/asm-powerpc/lmb.h @@ -0,0 +1,81 @@ +#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 */ |