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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-ppc64/] [abs_addr.h] - Blame information for rev 1774

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#ifndef _ABS_ADDR_H
#define _ABS_ADDR_H
 
#include <linux/config.h>
 
/*
 * c 2001 PPC 64 Team, 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 <asm/types.h>
#include <asm/page.h>
#include <asm/prom.h>
#include <asm/lmb.h>
 
typedef u32 msChunks_entry;
struct msChunks {
        unsigned long num_chunks;
        unsigned long chunk_size;
        unsigned long chunk_shift;
        unsigned long chunk_mask;
        msChunks_entry *abs;
};
 
extern struct msChunks msChunks;
 
extern unsigned long msChunks_alloc(unsigned long, unsigned long, unsigned long);
extern unsigned long reloc_offset(void);
 
#ifdef CONFIG_MSCHUNKS
 
static inline unsigned long
chunk_to_addr(unsigned long chunk)
{
        unsigned long offset = reloc_offset();
        struct msChunks *_msChunks = PTRRELOC(&msChunks);
 
        return chunk << _msChunks->chunk_shift;
}
 
static inline unsigned long
addr_to_chunk(unsigned long addr)
{
        unsigned long offset = reloc_offset();
        struct msChunks *_msChunks = PTRRELOC(&msChunks);
 
        return addr >> _msChunks->chunk_shift;
}
 
static inline unsigned long
chunk_offset(unsigned long addr)
{
        unsigned long offset = reloc_offset();
        struct msChunks *_msChunks = PTRRELOC(&msChunks);
 
        return addr & _msChunks->chunk_mask;
}
 
static inline unsigned long
abs_chunk(unsigned long pchunk)
{
        unsigned long offset = reloc_offset();
        struct msChunks *_msChunks = PTRRELOC(&msChunks);
        if ( pchunk >= _msChunks->num_chunks ) {
                return pchunk;
        }
        return PTRRELOC(_msChunks->abs)[pchunk];
}
 
 
static inline unsigned long
phys_to_absolute(unsigned long pa)
{
        return chunk_to_addr(abs_chunk(addr_to_chunk(pa))) + chunk_offset(pa);
}
 
static inline unsigned long
physRpn_to_absRpn(unsigned long rpn)
{
        unsigned long pa = rpn << PAGE_SHIFT;
        unsigned long aa = phys_to_absolute(pa);
        return (aa >> PAGE_SHIFT);
}
 
static inline unsigned long
absolute_to_phys(unsigned long aa)
{
        return lmb_abs_to_phys(aa);
}
 
#else  /* !CONFIG_MSCHUNKS */
 
#define chunk_to_addr(chunk) ((unsigned long)(chunk))
#define addr_to_chunk(addr) (addr)
#define chunk_offset(addr) (0)
#define abs_chunk(pchunk) (pchunk)
 
#define phys_to_absolute(pa) (pa)
#define physRpn_to_absRpn(rpn) (rpn)
#define absolute_to_phys(aa) (aa)
 
#endif /* !CONFIG_MSCHUNKS */
 
 
static inline unsigned long
virt_to_absolute(unsigned long ea)
{
        return phys_to_absolute(__pa(ea));
}
 
static inline unsigned long
absolute_to_virt(unsigned long aa)
{
        return (unsigned long)__va(absolute_to_phys(aa));
}
 
#endif /* _ABS_ADDR_H */

Line No.	Rev	Author	Line
1	1275	phoenix	`#ifndef _ABS_ADDR_H`
2			`#define _ABS_ADDR_H`
3
4			`#include <linux/config.h>`
5
6			`/*`
7			`* c 2001 PPC 64 Team, IBM Corp`
8			`*`
9			`* This program is free software; you can redistribute it and/or`
10			`* modify it under the terms of the GNU General Public License`
11			`* as published by the Free Software Foundation; either version`
12			`* 2 of the License, or (at your option) any later version.`
13			`*/`
14
15			`#include <asm/types.h>`
16			`#include <asm/page.h>`
17			`#include <asm/prom.h>`
18			`#include <asm/lmb.h>`
19
20			`typedef u32 msChunks_entry;`
21			`struct msChunks {`
22			`unsigned long num_chunks;`
23			`unsigned long chunk_size;`
24			`unsigned long chunk_shift;`
25			`unsigned long chunk_mask;`
26			`msChunks_entry *abs;`
27			`};`
28
29			`extern struct msChunks msChunks;`
30
31			`extern unsigned long msChunks_alloc(unsigned long, unsigned long, unsigned long);`
32			`extern unsigned long reloc_offset(void);`
33
34			`#ifdef CONFIG_MSCHUNKS`
35
36			`static inline unsigned long`
37			`chunk_to_addr(unsigned long chunk)`
38			`{`
39			`unsigned long offset = reloc_offset();`
40			`struct msChunks *_msChunks = PTRRELOC(&msChunks);`
41
42			`return chunk << _msChunks->chunk_shift;`
43			`}`
44
45			`static inline unsigned long`
46			`addr_to_chunk(unsigned long addr)`
47			`{`
48			`unsigned long offset = reloc_offset();`
49			`struct msChunks *_msChunks = PTRRELOC(&msChunks);`
50
51			`return addr >> _msChunks->chunk_shift;`
52			`}`
53
54			`static inline unsigned long`
55			`chunk_offset(unsigned long addr)`
56			`{`
57			`unsigned long offset = reloc_offset();`
58			`struct msChunks *_msChunks = PTRRELOC(&msChunks);`
59
60			`return addr & _msChunks->chunk_mask;`
61			`}`
62
63			`static inline unsigned long`
64			`abs_chunk(unsigned long pchunk)`
65			`{`
66			`unsigned long offset = reloc_offset();`
67			`struct msChunks *_msChunks = PTRRELOC(&msChunks);`
68			`if ( pchunk >= _msChunks->num_chunks ) {`
69			`return pchunk;`
70			`}`
71			`return PTRRELOC(_msChunks->abs)[pchunk];`
72			`}`
73
74
75			`static inline unsigned long`
76			`phys_to_absolute(unsigned long pa)`
77			`{`
78			`return chunk_to_addr(abs_chunk(addr_to_chunk(pa))) + chunk_offset(pa);`
79			`}`
80
81			`static inline unsigned long`
82			`physRpn_to_absRpn(unsigned long rpn)`
83			`{`
84			`unsigned long pa = rpn << PAGE_SHIFT;`
85			`unsigned long aa = phys_to_absolute(pa);`
86			`return (aa >> PAGE_SHIFT);`
87			`}`
88
89			`static inline unsigned long`
90			`absolute_to_phys(unsigned long aa)`
91			`{`
92			`return lmb_abs_to_phys(aa);`
93			`}`
94
95			`#else /* !CONFIG_MSCHUNKS */`
96
97			`#define chunk_to_addr(chunk) ((unsigned long)(chunk))`
98			`#define addr_to_chunk(addr) (addr)`
99			`#define chunk_offset(addr) (0)`
100			`#define abs_chunk(pchunk) (pchunk)`
101
102			`#define phys_to_absolute(pa) (pa)`
103			`#define physRpn_to_absRpn(rpn) (rpn)`
104			`#define absolute_to_phys(aa) (aa)`
105
106			`#endif /* !CONFIG_MSCHUNKS */`
107
108
109			`static inline unsigned long`
110			`virt_to_absolute(unsigned long ea)`
111			`{`
112			`return phys_to_absolute(__pa(ea));`
113			`}`
114
115			`static inline unsigned long`
116			`absolute_to_virt(unsigned long aa)`
117			`{`
118			`return (unsigned long)__va(absolute_to_phys(aa));`
119			`}`
120
121			`#endif /* _ABS_ADDR_H */`

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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-ppc64/] [abs_addr.h] - Blame information for rev 1774