aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-powerpc/lmb.h
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2008-02-13 19:56:49 -0500
committerDavid S. Miller <davem@davemloft.net>2008-02-13 19:56:49 -0500
commitd9b2b2a277219d4812311d995054ce4f95067725 (patch)
tree63af21df6686dd2e867015fdf9f0cb798d3ca348 /include/asm-powerpc/lmb.h
parente760e716d47b48caf98da348368fd41b4a9b9e7e (diff)
[LIB]: Make PowerPC LMB code generic so sparc64 can use it too.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-powerpc/lmb.h')
-rw-r--r--include/asm-powerpc/lmb.h82
1 files changed, 8 insertions, 74 deletions
diff --git a/include/asm-powerpc/lmb.h b/include/asm-powerpc/lmb.h
index 5d1dc48a0bb8..028184b6a162 100644
--- a/include/asm-powerpc/lmb.h
+++ b/include/asm-powerpc/lmb.h
@@ -1,81 +1,15 @@
1#ifndef _ASM_POWERPC_LMB_H 1#ifndef _ASM_POWERPC_LMB_H
2#define _ASM_POWERPC_LMB_H 2#define _ASM_POWERPC_LMB_H
3#ifdef __KERNEL__
4 3
5/* 4#include <asm/udbg.h>
6 * Definitions for talking to the Open Firmware PROM on
7 * Power Macintosh computers.
8 *
9 * Copyright (C) 2001 Peter Bergner, IBM Corp.
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version
14 * 2 of the License, or (at your option) any later version.
15 */
16 5
17#include <linux/init.h> 6#define LMB_DBG(fmt...) udbg_printf(fmt)
18#include <asm/prom.h>
19 7
20#define MAX_LMB_REGIONS 128 8#ifdef CONFIG_PPC32
9extern unsigned long __max_low_memory;
10#define LMB_REAL_LIMIT __max_low_memory
11#else
12#define LMB_REAL_LIMIT 0
13#endif
21 14
22struct lmb_property {
23 unsigned long base;
24 unsigned long size;
25};
26
27struct lmb_region {
28 unsigned long cnt;
29 unsigned long size;
30 struct lmb_property region[MAX_LMB_REGIONS+1];
31};
32
33struct lmb {
34 unsigned long debug;
35 unsigned long rmo_size;
36 struct lmb_region memory;
37 struct lmb_region reserved;
38};
39
40extern struct lmb lmb;
41
42extern void __init lmb_init(void);
43extern void __init lmb_analyze(void);
44extern long __init lmb_add(unsigned long base, unsigned long size);
45extern long __init lmb_reserve(unsigned long base, unsigned long size);
46extern unsigned long __init lmb_alloc(unsigned long size, unsigned long align);
47extern unsigned long __init lmb_alloc_base(unsigned long size,
48 unsigned long align, unsigned long max_addr);
49extern unsigned long __init __lmb_alloc_base(unsigned long size,
50 unsigned long align, unsigned long max_addr);
51extern unsigned long __init lmb_phys_mem_size(void);
52extern unsigned long __init lmb_end_of_DRAM(void);
53extern void __init lmb_enforce_memory_limit(unsigned long memory_limit);
54extern int __init lmb_is_reserved(unsigned long addr);
55
56extern void lmb_dump_all(void);
57
58static inline unsigned long
59lmb_size_bytes(struct lmb_region *type, unsigned long region_nr)
60{
61 return type->region[region_nr].size;
62}
63static inline unsigned long
64lmb_size_pages(struct lmb_region *type, unsigned long region_nr)
65{
66 return lmb_size_bytes(type, region_nr) >> PAGE_SHIFT;
67}
68static inline unsigned long
69lmb_start_pfn(struct lmb_region *type, unsigned long region_nr)
70{
71 return type->region[region_nr].base >> PAGE_SHIFT;
72}
73static inline unsigned long
74lmb_end_pfn(struct lmb_region *type, unsigned long region_nr)
75{
76 return lmb_start_pfn(type, region_nr) +
77 lmb_size_pages(type, region_nr);
78}
79
80#endif /* __KERNEL__ */
81#endif /* _ASM_POWERPC_LMB_H */ 15#endif /* _ASM_POWERPC_LMB_H */