NAME    [Toc]    [Back]

     pmap_init, pmap_init2 -- initialize the pmap subsystem

SYNOPSIS    [Toc]    [Back]

     #include <sys/param.h>
     #include <vm/vm.h>
     #include <vm/pmap.h>

     void
     pmap_init(vm_paddr_t phys_start, vm_paddr_t phys_end);

     void
     pmap_init2(void);

DESCRIPTION    [Toc]    [Back]

     The pmap_init() function initializes the pmap(9) sub-system.  It is
     called during system initialization by vm_init(), to initialize any
     structures that the pmap_init system needs in order to map between physical
 and virtual memory.

     The pmap_init() supports discontiguous physical memory in a fairly consistent
 way.  The module will manage the range of physical pages between
     phys_start and phys_end.

     The pmap_init2() function initializes a zone for the PV entries.  These
     are used to implement page sharing at the physical level.	A high water
     mark is set so that the system can recover from excessive numbers of PV
     entries.

SEE ALSO    [Toc]    [Back]

     pmap(9)

AUTHORS    [Toc]    [Back]

     This manual page was written by Bruce M Simpson <bms@spc.org>.


				 July 21, 2003