diff options
| author | svn2git <svn2git@FreeBSD.org> | 1994-05-01 08:00:00 +0000 |
|---|---|---|
| committer | svn2git <svn2git@FreeBSD.org> | 1994-05-01 08:00:00 +0000 |
| commit | a16f65c7d117419bd266c28a1901ef129a337569 (patch) | |
| tree | 2626602f66dc3551e7a7c7bc9ad763c3bc7ab40a /sys/vm/vm_param.h | |
| parent | 8503f4f13f77abf7adc8f7e329c6f9c1d52b6a20 (diff) | |
Diffstat (limited to 'sys/vm/vm_param.h')
| -rw-r--r-- | sys/vm/vm_param.h | 43 |
1 files changed, 5 insertions, 38 deletions
diff --git a/sys/vm/vm_param.h b/sys/vm/vm_param.h index 32f35ce01360..b3a0ed1ce80a 100644 --- a/sys/vm/vm_param.h +++ b/sys/vm/vm_param.h @@ -34,7 +34,7 @@ * SUCH DAMAGE. * * from: @(#)vm_param.h 7.2 (Berkeley) 4/21/91 - * $Id: vm_param.h,v 1.2 1993/10/16 16:20:53 rgrimes Exp $ + * $Id: vm_param.h,v 1.6 1994/01/31 23:48:48 davidg Exp $ */ /* @@ -84,20 +84,6 @@ typedef int boolean_t; #define TRUE 1 #define FALSE 0 -/* - * The machine independent pages are refered to as PAGES. A page - * is some number of hardware pages, depending on the target machine. - */ - -/* - * All references to the size of a page should be done with PAGE_SIZE - * or PAGE_SHIFT. The fact they are variables is hidden here so that - * we can easily make them constant if we so desire. - */ - -#define PAGE_SIZE page_size /* size of page in addressible units */ -#define PAGE_SHIFT page_shift /* number of bits to shift for pages */ - /* * Return values from the VM routines. */ @@ -112,17 +98,12 @@ typedef int boolean_t; #define KERN_NO_ACCESS 8 #ifdef ASSEMBLER -#else ASSEMBLER +#else /* ASSEMBLER */ /* * Convert addresses to pages and vice versa. * No rounding is used. */ -#ifdef KERNEL -#define atop(x) (((unsigned)(x)) >> page_shift) -#define ptoa(x) ((vm_offset_t)((x) << page_shift)) -#endif KERNEL - /* * Round off or truncate to the nearest page. These will work * for either addresses or counts. (i.e. 1 byte rounds to 1 page @@ -130,24 +111,10 @@ typedef int boolean_t; */ #ifdef KERNEL -#define round_page(x) ((vm_offset_t)((((vm_offset_t)(x)) + page_mask) & ~page_mask)) -#define trunc_page(x) ((vm_offset_t)(((vm_offset_t)(x)) & ~page_mask)) -#else KERNEL -#define round_page(x) ((((vm_offset_t)(x) + (vm_page_size - 1)) / vm_page_size) * vm_page_size) -#define trunc_page(x) ((((vm_offset_t)(x)) / vm_page_size) * vm_page_size) -#endif KERNEL - -#ifdef KERNEL -extern vm_size_t page_size; /* machine independent page size */ -extern vm_size_t page_mask; /* page_size - 1; mask for - offset within page */ -extern int page_shift; /* shift to use for page size */ - -extern vm_size_t mem_size; /* size of physical memory (bytes) */ extern vm_offset_t first_addr; /* first physical page */ extern vm_offset_t last_addr; /* last physical page */ -#endif KERNEL +#endif /* KERNEL */ -#endif ASSEMBLER +#endif /* ASSEMBLER */ -#endif _VM_PARAM_ +#endif /* _VM_PARAM_ */ |