convert page pointer to physical address
Synopsis (Not in current DDI version)
paddr_t pptophys(page_t *pp);
pptophys converts a pointer to a page structure to a physical address.
The physical address represented by the page structure pointed to by pp.
Block drivers can use this address for
physical DMA operations during paged-I/O requests.
A paged-I/O request is identified by the B_PAGEIO flag
being set in the ``b_flags'' field of the buffer header
to a driver's
The pointer to the page structure can be obtained by calling
B_PAGEIO won't be set unless the driver has the D_NOBRKUP flag set
Context and synchronization
Non-blockable, interrupt, user, or blockable
PC-AT compatible platforms
1, 2, 3, 4, 5, 5mp, 6, 6mp, 7, 7mp, 7.1, 7.1mp
Differences between versions
is not supported in DDI 8.
BA_PAGELIST is replaced by
BA_SCGTH and BA_SCGTH64.
19 June 2005
© 2005 The SCO Group, Inc. All rights reserved.
OpenServer 6 and UnixWare (SVR5) HDK - June 2005