'\" t
.\"     Title: drm_gem_mmap
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: May 2018
.\"    Manual: DRM Core
.\"    Source: Kernel Hackers Manual 3.16.56
.\"  Language: English
.\"
.TH "DRM_GEM_MMAP" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "DRM Core"
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.SH "NAME"
drm_gem_mmap \- memory map routine for GEM objects
.SH "SYNOPSIS"
.HP \w'int\ drm_gem_mmap('u
.BI "int drm_gem_mmap(struct\ file\ *\ " "filp" ", struct\ vm_area_struct\ *\ " "vma" ");"
.SH "ARGUMENTS"
.PP
\fIfilp\fR
.RS 4
DRM file pointer
.RE
.PP
\fIvma\fR
.RS 4
VMA for the area to be mapped
.RE
.SH "DESCRIPTION"
.PP
If a driver supports GEM object mapping, mmap calls on the DRM file descriptor will end up here\&.
.PP
Look up the GEM object based on the offset passed in (vma\->vm_pgoff will contain the fake offset we created when the GTT map ioctl was called on the object) and map it with a call to
\fBdrm_gem_mmap_obj\fR\&.
.PP
If the caller is not granted access to the buffer object, the mmap will fail with EACCES\&. Please see the vma manager for more information\&.
.SH "AUTHORS"
.PP
\fBJesse Barnes\fR <\&jesse.barnes@intel.com\&>
.br
Intel Corporation, 
	    
	  
.RS 4
Initial version
.RE
.PP
\fBLaurent Pinchart\fR <\&laurent.pinchart@ideasonboard.com\&>
.br
Ideas on board SPRL, 
	    
	  
.RS 4
Driver internals
.RE
.PP
\fBDaniel Vetter\fR <\&daniel.vetter@ffwll.ch\&>
.br
Intel Corporation, 
	    
	  
.RS 4
Contributions all over the place
.RE
.SH "COPYRIGHT"
.br