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Chris Wilson 8ef5d8c195 sna: Map the upload buffer using an LLC bo
In order to avoid having to perform a copy of the cacheable buffer into
GPU space, we can map a bo as cacheable and write directly to its
contents. This is only a win on systems that can avoid the clflush, and
also we have to go to greater measures to avoid unnecessary
serialisation upon that CPU bo. Sadly, we do not yet go to enough length
to avoid negatively impacting ShmPutImage, but that does not appear to
be a artefact of stalling upon a CPU buffer.

Note, LLC is a SandyBridge feature enabled by default in kernel 3.1 and
later. In time, we should be able to expose similar support for
snoopable buffers for other generations.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-12-17 21:26:35 +00:00
m4 Update autotools configuration 2011-02-09 11:46:19 +00:00
man Fix man page formatting 2011-08-01 15:37:29 +01:00
src sna: Map the upload buffer using an LLC bo 2011-12-17 21:26:35 +00:00
test test: Compile fix for make check 2011-11-07 09:28:44 +00:00
uxa uxa: Move the region creation beyond the call into glamor 2011-12-15 09:48:08 +00:00
.gitignore gitignore: add git_version.h 2011-09-09 23:15:58 +01:00
AUTHORS AUTHORS: Add Robert Lowery to the authors file 2009-04-15 18:07:17 -07:00
COPYING COPYING: replace stub file with actual Copyright notices. 2010-06-12 20:24:10 -04:00
Makefile.am Compile out UXA if so desired 2011-11-16 22:15:39 +00:00
NEWS NEWS: Release notes for 2.17.0 2011-11-16 23:13:44 +00:00
README Take note for Pineview support in README and manpage 2010-01-04 14:15:41 -08:00
RELEASING Increment version to 2.9.0 2009-09-28 20:03:39 -07:00
autogen.sh Update autotools configuration 2011-02-09 11:46:19 +00:00
configure.ac sna: Map the upload buffer using an LLC bo 2011-12-17 21:26:35 +00:00

README

xf86-video-intel
Open-source X.org graphics driver for Intel graphics
http://www.intellinuxgraphics.com/

What is xf86-video-intel
------------------------
The xf86-video-intel module is an open-source 2D graphics driver for
the X Window System as implemented by X.org. It supports a variety of
Intel graphics chipsets including:

	i810/i810e/i810-dc100,i815,
	i830M,845G,852GM,855GM,865G,
	915G/GM,945G/GM/GME,946GZ
	G/GM/GME/Q965,
	G/Q33,G/Q35,G41,G/Q43,G/GM/Q45
	PineView-M (Atom N400 series)
	PineView-D (Atom D400/D500 series)

Where to get more information about the driver
----------------------------------------------
The primary source of information about this and other open-source
drivers for Intel graphics is:

	http://intellinuxgraphics.org/

Documentation specific to the xf86-video-intel driver including
possible configuration options for the xorg.conf file can be found in
the intel(4) manual page. After installing the driver this
documentation can be read with the following command:

	man intel

Mailing list for communication with users and developers of
xf86-video-intel:

	intel-gfx@lists.freedesktop.org

	Note: Subscription is required before posting, but anyone is
	free to subscribe. See instructions (and archives) here:

	http://lists.freedesktop.org/mailman/listinfo/intel-gfx

To report bugs encountered with the driver, see:

	http://intellinuxgraphics.org/how_to_report_bug.html

To see bugs that are targeted to be fixed in the next release:

	https://bugs.freedesktop.org/show_bug.cgi?id=intel-2d-release