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copy_to_phys(9r)					      copy_to_phys(9r)

NAME
       copy_to_phys  - General: Copies data from a virtual address to a physi‐
       cal address

SYNOPSIS
       void copy_to_phys(
	       vm_offset_t virt_src,
	       vm_offset_t phys_dest,
	       unsigned int bcount );

ARGUMENTS
       Specifies the virtual address of the data to be copied.	Specifies  the
       physical address to copy the data to.  Specifies the number of bytes to
       copy.

DESCRIPTION
       The  copy_to_phys  routine  copies  a  specified	 amount	 of  virtually
       addressed  memory  to physically addressed memory. The addresses reside
       only in system memory space and not in the memory space on I/O buses.

CAUTIONS
       If any overlap exists between virt_src and phys_dest, the  copy_to_phys
       routine panics.

RETURN VALUES
       None

SEE ALSO
       Routines:   copyin(9r),	 copyout(9r),	io_copyin(9r),	io_copyio(9r),
       io_copyout(9r)

							      copy_to_phys(9r)
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