asgardius/android_kernel_motorola_sm6225
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

drm/doc: Reorganize driver documentation

Browse source 
Split up the DocBook into the core drm part and a 2nd part for
driver documentation. As an example add a very (very!) basic
skeleton for i915.

v1: Typo fixes from Dieter.

Cc: Dieter Nützel <Dieter@nuetzel-hh.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2014-01-22 12:21:16 +01:00
parent 00153aebc2
commit 3519f70ee7
1 changed files with 74 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

82
Documentation/DocBook/drm.tmpl
View file

@ -60,7 +60,15 @@
<toc></toc>
<!-- Introduction -->
<part id="drmCore">
<title>DRM Core</title>
<partintro>
<para>
This first part of the DRM Developer's Guide documents core DRM code,
helper libraries for writting drivers and generic userspace interfaces
exposed by DRM drivers.
</para>
</partintro>
<chapter id="drmIntroduction">
<title>Introduction</title>
@ -2764,15 +2772,73 @@ int (*resume) (struct drm_device *);</synopsis>
</sect1>
</chapter>
</part>
<part id="drmDrivers">
<title>DRM Drivers</title>
<!-- API reference -->
<appendix id="drmDriverApi">
<title>DRM Driver API</title>
<partintro>
<para>
Include auto-generated API reference here (need to reference it
from paragraphs above too).
This second part of the DRM Developer's Guide documents driver code,
implementation details and also all the driver-specific userspace
interfaces. Especially since all hardware-acceleration interfaces to
userspace are driver specific for efficiency and other reasons these
interfaces can be rather substantial. Hence every driver has its own
chapter.
</para>
</appendix>
</partintro>
<chapter id="drmI915">
<title>drm/i915 Intel GFX Driver</title>
<para>
The drm/i915 driver supports all (with the exception of some very early
models) integrated GFX chipsets with both Intel display and rendering
blocks. This excludes a set of SoC platforms with an SGX rendering unit,
those have basic support through the gma500 drm driver.
</para>
<sect1>
<title>Display Hardware Handling</title>
<para>
This section covers everything related to the display hardware including
the mode setting infrastructure, plane, sprite and cursor handling and
display, output probing and related topics.
</para>
<sect2>
<title>Mode Setting Infrastructure</title>
<para>
The i915 driver is thus far the only DRM driver which doesn't use the
common DRM helper code to implement mode setting sequences. Thus it
has its own tailor-made infrastructure for executing a display
configuration change.
</para>
</sect2>
<sect2>
<title>Plane Configuration</title>
<para>
This section covers plane configuration and composition with the
primary plane, sprites, cursors and overlays. This includes the
infrastructure to do atomic vsync'ed updates of all this state and
also tightly coupled topics like watermark setup and computation,
framebuffer compression and panel self refresh.
</para>
</sect2>
<sect2>
<title>Output Probing</title>
<para>
This section covers output probing and related infrastructure like the
hotplug interrupt storm detection and mitigation code. Note that the
i915 driver still uses most of the common DRM helper code for output
probing, so those sections fully apply.
</para>
</sect2>
</sect1>
<sect1>
<title>Memory Management and Command Submission</title>
<para>
This sections covers all things related to the GEM implementation in the
i915 driver.
</para>
</sect1>
</chapter>
</part>
</book>