.\" Title: phys_to_virt .\" Author: .\" Generator: DocBook XSL Stylesheets v1.70.1 .\" Date: July 2007 .\" Manual: Public Functions Provided .\" Source: Kernel Hackers Manual 2.6.22 .\" .TH "PHYS_TO_VIRT" "9" "July 2007" "Kernel Hackers Manual 2.6.22" "Public Functions Provided" .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .SH "NAME" phys_to_virt \- map physical address to virtual .SH "SYNOPSIS" .HP 20 .BI "void * phys_to_virt(unsigned\ long\ " "address" ");" .SH "ARGUMENTS" .TP 3n \fIaddress\fR address to remap .SH "DESCRIPTION" .PP The returned virtual address is a current CPU mapping for the memory address given. It is only valid to use this function on addresses that have a kernel mapping .PP This function does not handle bus mappings for DMA transfers. In almost all conceivable cases a device driver should not be using this function .SH "AUTHORS" .PP \fBMatthew\fR \fBWilcox\fR .sp -1n .IP "" 3n Author. .PP \fBAlan\fR \fBCox\fR .sp -1n .IP "" 3n Author. .SH "COPYRIGHT"