'\" t
.\"     Title: dma_buf_vmap
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: May 2018
.\"    Manual: Device drivers infrastructure
.\"    Source: Kernel Hackers Manual 3.16.56
.\"  Language: English
.\"
.TH "DMA_BUF_VMAP" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "Device drivers infrastructure"
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.SH "NAME"
dma_buf_vmap \- Create virtual mapping for the buffer object into kernel address space\&. Same restrictions as for vmap and friends apply\&.
.SH "SYNOPSIS"
.HP \w'void\ *\ dma_buf_vmap('u
.BI "void * dma_buf_vmap(struct\ dma_buf\ *\ " "dmabuf" ");"
.SH "ARGUMENTS"
.PP
\fIdmabuf\fR
.RS 4
[in] buffer to vmap
.RE
.SH "DESCRIPTION"
.PP
This call may fail due to lack of virtual mapping address space\&. These calls are optional in drivers\&. The intended use for them is for mapping objects linear in kernel space for high use objects\&. Please attempt to use kmap/kunmap before thinking about these interfaces\&.
.PP
Returns NULL on error\&.
.SH "COPYRIGHT"
.br