VIRT_TO_PHYS(9) Public Functions Provided VIRT_TO_PHYS(9)
NAME
virt_to_phys - map virtual addresses to physical
SYNOPSIS
phys_addr_t virt_to_phys(volatile void * address);
ARGUMENTS
address
address to remap
DESCRIPTION
The returned physical address is the physical (CPU) mapping for the memory address given. It is only valid to use this function on
addresses directly mapped or allocated via kmalloc.
This function does not give bus mappings for DMA transfers. In almost all conceivable cases a device driver should not be using this
function
AUTHORS
Matthew Wilcox <matthew@wil.cx>
Author.
Alan Cox <alan@lxorguk.ukuu.org.uk>
Author.
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 VIRT_TO_PHYS(9)
