1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>Part I. DRM Core</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux DRM Developer's Guide"><link rel="up" href="index.html" title="Linux DRM Developer's Guide"><link rel="prev" href="index.html" title="Linux DRM Developer's Guide"><link rel="next" href="drmIntroduction.html" title="Chapter 1. Introduction"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Part I. DRM Core</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="index.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="drmIntroduction.html">Next</a></td></tr></table><hr></div><div class="part"><div class="titlepage"><div><div><h1 class="title"><a name="drmCore"></a>Part I. DRM Core</h1></div></div></div><div class="partintro"><div></div><p> 2 This first part of the DRM Developer's Guide documents core DRM code, 3 helper libraries for writing drivers and generic userspace interfaces 4 exposed by DRM drivers. 5 </p><div class="toc"><p><b>Table of Contents</b></p><dl class="toc"><dt><span class="chapter"><a href="drmIntroduction.html">1. Introduction</a></span></dt><dt><span class="chapter"><a href="drmInternals.html">2. DRM Internals</a></span></dt><dd><dl><dt><span class="sect1"><a href="drmInternals.html#idp1119831828">Driver Initialization</a></span></dt><dd><dl><dt><span class="sect2"><a href="drmInternals.html#idp1119636188">Driver Information</a></span></dt><dt><span class="sect2"><a href="drmInternals.html#idp1119509092">Device Registration</a></span></dt><dt><span class="sect2"><a href="drmInternals.html#idp1122528940">Driver Load</a></span></dt></dl></dd><dt><span class="sect1"><a href="drm-memory-management.html">Memory management</a></span></dt><dd><dl><dt><span class="sect2"><a href="drm-memory-management.html#idp1122551924">The Translation Table Manager (TTM)</a></span></dt><dt><span class="sect2"><a href="drm-memory-management.html#drm-gem">The Graphics Execution Manager (GEM)</a></span></dt><dt><span class="sect2"><a href="drm-memory-management.html#idp1122718668">VMA Offset Manager</a></span></dt><dt><span class="sect2"><a href="drm-memory-management.html#drm-prime-support">PRIME Buffer Sharing</a></span></dt><dt><span class="sect2"><a href="drm-memory-management.html#idp1122911796">PRIME Function References</a></span></dt><dt><span class="sect2"><a href="drm-memory-management.html#idp1122987828">DRM MM Range Allocator</a></span></dt><dt><span class="sect2"><a href="drm-memory-management.html#idp1119448692">DRM MM Range Allocator Function References</a></span></dt><dt><span class="sect2"><a href="drm-memory-management.html#idp1123226860">CMA Helper Functions Reference</a></span></dt></dl></dd><dt><span class="sect1"><a href="drm-mode-setting.html">Mode Setting</a></span></dt><dd><dl><dt><span class="sect2"><a href="drm-mode-setting.html#idp1123353068">Display Modes Function Reference</a></span></dt><dt><span class="sect2"><a href="drm-mode-setting.html#idp1123612996">Atomic Mode Setting Function Reference</a></span></dt><dt><span class="sect2"><a href="drm-mode-setting.html#idp1123785660">Frame Buffer Creation</a></span></dt><dt><span class="sect2"><a href="drm-mode-setting.html#idp1123799668">Dumb Buffer Objects</a></span></dt><dt><span class="sect2"><a href="drm-mode-setting.html#idp1123808604">Output Polling</a></span></dt><dt><span class="sect2"><a href="drm-mode-setting.html#idp1123810164">Locking</a></span></dt></dl></dd><dt><span class="sect1"><a href="drm-kms-init.html">KMS Initialization and Cleanup</a></span></dt><dd><dl><dt><span class="sect2"><a href="drm-kms-init.html#idp1123813300">CRTCs (struct <span class="structname">drm_crtc</span>)</a></span></dt><dt><span class="sect2"><a href="drm-kms-init.html#idp1123834892">Planes (struct <span class="structname">drm_plane</span>)</a></span></dt><dt><span class="sect2"><a href="drm-kms-init.html#idp1123849172">Encoders (struct <span class="structname">drm_encoder</span>)</a></span></dt><dt><span class="sect2"><a href="drm-kms-init.html#idp1123859012">Connectors (struct <span class="structname">drm_connector</span>)</a></span></dt><dt><span class="sect2"><a href="drm-kms-init.html#idp1123892868">Cleanup</a></span></dt><dt><span class="sect2"><a href="drm-kms-init.html#idp1123897460">Output discovery and initialization example</a></span></dt><dt><span class="sect2"><a href="drm-kms-init.html#idp1123898740">KMS API Functions</a></span></dt><dt><span class="sect2"><a href="drm-kms-init.html#idp1124538092">KMS Data Structures</a></span></dt><dt><span class="sect2"><a href="drm-kms-init.html#idp1124843020">KMS Locking</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02s05.html">Mode Setting Helper Functions</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02s05.html#idp1124995876">Helper Functions</a></span></dt><dt><span class="sect2"><a href="ch02s05.html#idp1125008132">CRTC Helper Operations</a></span></dt><dt><span class="sect2"><a href="ch02s05.html#idp1125018460">Encoder Helper Operations</a></span></dt><dt><span class="sect2"><a href="ch02s05.html#idp1125024140">Connector Helper Operations</a></span></dt><dt><span class="sect2"><a href="ch02s05.html#idp1125061196">Atomic Modeset Helper Functions Reference</a></span></dt><dt><span class="sect2"><a href="ch02s05.html#idp1125415036">Modeset Helper Functions Reference</a></span></dt><dt><span class="sect2"><a href="ch02s05.html#idp1125575852">Output Probing Helper Functions Reference</a></span></dt><dt><span class="sect2"><a href="ch02s05.html#idp1125647748">fbdev Helper Functions Reference</a></span></dt><dt><span class="sect2"><a href="ch02s05.html#idp1125808116">Display Port Helper Functions Reference</a></span></dt><dt><span class="sect2"><a href="ch02s05.html#idp1125934820">Display Port MST Helper Functions Reference</a></span></dt><dt><span class="sect2"><a href="ch02s05.html#idp1126139892">MIPI DSI Helper Functions Reference</a></span></dt><dt><span class="sect2"><a href="ch02s05.html#idp1126417260">EDID Helper Functions Reference</a></span></dt><dt><span class="sect2"><a href="ch02s05.html#idp1126612844">Rectangle Utilities Reference</a></span></dt><dt><span class="sect2"><a href="ch02s05.html#idp1126805892">Flip-work Helper Reference</a></span></dt><dt><span class="sect2"><a href="ch02s05.html#idp1126875156">HDMI Infoframes Helper Reference</a></span></dt><dt><span class="sect2"><a href="ch02s05.html#idp1126989620">Plane Helper Reference</a></span></dt><dt><span class="sect2"><a href="ch02s05.html#idp1127103124">Tile group</a></span></dt></dl></dd><dt><span class="sect1"><a href="drm-kms-properties.html">KMS Properties</a></span></dt><dd><dl><dt><span class="sect2"><a href="drm-kms-properties.html#idp1127119396">Existing KMS Properties</a></span></dt></dl></dd><dt><span class="sect1"><a href="drm-vertical-blank.html">Vertical Blanking</a></span></dt><dd><dl><dt><span class="sect2"><a href="drm-vertical-blank.html#idp1127382092">Vertical Blanking and Interrupt Handling Functions Reference</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02s08.html">Open/Close, File Operations and IOCTLs</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02s08.html#idp1127640468">Open and Close</a></span></dt><dt><span class="sect2"><a href="ch02s08.html#idp1127648684">File Operations</a></span></dt><dt><span class="sect2"><a href="ch02s08.html#idp1127655516">IOCTLs</a></span></dt></dl></dd><dt><span class="sect1"><a href="ch02s09.html">Legacy Support Code</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch02s09.html#idp1127663228">Legacy Suspend/Resume</a></span></dt><dt><span class="sect2"><a href="ch02s09.html#idp1127665524">Legacy DMA Services</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="drmExternals.html">3. Userland interfaces</a></span></dt><dd><dl><dt><span class="sect1"><a href="drmExternals.html#idp1127670396">Render nodes</a></span></dt><dt><span class="sect1"><a href="ch03s02.html">VBlank event handling</a></span></dt></dl></dd></dl></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="index.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="drmIntroduction.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Linux DRM Developer's Guide </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 1. Introduction</td></tr></table></div></body></html> 6