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PMAP_MAP(9)		 BSD Kernel Developer's	Manual		   PMAP_MAP(9)

NAME
     pmap_map -- map a physical	memory range into kernel virtual address (KVA)
     space

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

     vm_offset_t
     pmap_map(vm_offset_t *virt, vm_paddr_t start, vm_paddr_t end, int prot);

DESCRIPTION
     The pmap_map() function maps a range of physical addresses	into kernel
     virtual address (KVA) space, from start to	end, with protection bits
     prot.

     The value passed in *virt is treated as a hint for	the virtual address of
     the beginning of the mapping.

IMPLEMENTATION NOTES
     The prot argument is currently ignored by machine-dependent implementa-
     tions.

     Architectures which can support a direct mapped physical to virtual re-
     gion can return the appropriate address within that region, leaving *virt
     unchanged.

RETURN VALUES
     The pmap_map() function returns the virtual address of the	beginning of
     the mapping, if the mapping was successfully made;	*virt will also	be up-
     dated with	the first usable address after the mapped region.

     If	the function is	unsuccessful, NULL is returned.

SEE ALSO
     pmap(9)

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

BSD				 July 21, 2003				   BSD

NAME | SYNOPSIS | DESCRIPTION | IMPLEMENTATION NOTES | RETURN VALUES | SEE ALSO | AUTHORS

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