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| author | jake <jake@FreeBSD.org> | 2003-02-23 21:20:00 +0000 |
|---|---|---|
| committer | jake <jake@FreeBSD.org> | 2003-02-23 21:20:00 +0000 |
| commit | c614cef2af17fe4c523a48a9f77274187ebc9bc4 (patch) | |
| tree | f9a063d9107dd28be16b7af3fa39b8c300d71592 /sys/i386/include/param.h | |
| parent | 9318f6d82c57682e409deb011440527b6179d5a0 (diff) | |
| download | FreeBSD-src-c614cef2af17fe4c523a48a9f77274187ebc9bc4.zip FreeBSD-src-c614cef2af17fe4c523a48a9f77274187ebc9bc4.tar.gz | |
- Added macros NPGPTD, NBPTD, and NPDEPTD, for dealing with the size of the
page directory.
- Use these instead of the magic constants 1 or PAGE_SIZE where appropriate.
There are still numerous assumptions that the page directory is exactly
1 page.
Sponsored by: DARPA, Network Associates Laboratories
Diffstat (limited to 'sys/i386/include/param.h')
| -rw-r--r-- | sys/i386/include/param.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/i386/include/param.h b/sys/i386/include/param.h index cf9cfe4..54fe27a 100644 --- a/sys/i386/include/param.h +++ b/sys/i386/include/param.h @@ -87,8 +87,12 @@ #define PAGE_MASK (PAGE_SIZE-1) #define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t))) -#define NPDEPG (PAGE_SIZE/(sizeof (pd_entry_t))) +#define NPGPTD 1 #define PDRSHIFT 22 /* LOG2(NBPDR) */ + +#define NBPTD (NPGPTD<<PAGE_SHIFT) +#define NPDEPTD (NBPTD/(sizeof (pd_entry_t))) +#define NPDEPG (PAGE_SIZE/(sizeof (pd_entry_t))) #define NBPDR (1<<PDRSHIFT) /* bytes/page dir */ #define PDRMASK (NBPDR-1) |
