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
Fo pmap_object_init_pt
Fa pmap_t pmap vm_offset_t addr vm_object_t object
Fa vm_pindex_t pindex vm_size_t size int limit
Fc
DESCRIPTION
The
pmap_object_init_pt ();
function preloads the page table entries into the specified physical map
Fa pmap ,
for the given
Fa object
at the virtual address
Fa addr ,
for
Fa size
bytes, beginning at the page index
Fa pindex
within the object.
The map bits
Fa 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 process
startup, and immediately following a call to
mmap(2).
