pmap_object_init_pt(9)

NAME

pmap_object_init_pt - initialize page tables for a VM object

SYNOPSIS

#include <sys/param.h>
#include <vm/vm.h>
#include <vm/pmap.h>
void
pmap_object_init_pt(pmap_t     pmap,    vm_offset_t    addr,
vm_object_t object,
        vm_pindex_t pindex, vm_size_t size, int limit);

DESCRIPTION

The pmap_object_init_pt() function preloads the page table

entries into
the specified physical map pmap, for the given object at the

virtual
address addr, for size bytes, beginning at the page index

pindex within
the object. The map bits limit are heeded when creating the

mapping.

IMPLEMENTATION NOTES

This function is not strictly required by an architecture's

pmap(9)
implementation, but it does provide performance benefits if

implemented.

It is intended to eliminate the blast of soft faults on pro

cess startup,
and immediately following a call to mmap(2).

SEE ALSO

pmap(9), vm_map(9)

AUTHORS

This manual page was written by Bruce M Simpson

<bms@spc.org>.

BSD July 21, 2003

BSD