pptophys man page on IRIX

pptophys man page on IRIX

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pptophys(D3X)							 pptophys(D3X)

NAME
     pptophys - convert page pointer to physical address

SYNOPSIS
     #include <sys/types.h>
     #include <sys/pfdat.h>
     #include <sys/ddi.h>
     paddr_t pptophys(struct pfdat *pp);

   Arguments
     pp	       Pointer to the page structure

DESCRIPTION
     pptophys converts a pointer to a page structure to a physical address.

   Return Values
     The physical address represented by the page (pfdat) structure referenced
     by pp.

     Block drivers can use this address for physical DMA operations during
     paged-I/O requests (see getnextpg(D3X)).

   Level
     Base or Interrupt.

   Notes
     Does not sleep.

   See Also
     strategy(D2), getnextpg(D3X), buf(D4)

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