xf86-video-intel

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Chris Wilson 57d7d5de78 sna: Use GPU for readback onto CPU bo Time to blt from GTT to LLC 16384 bytes: 125.000µs (snb) Time to blt from GTT to LLC 16384 bytes: 71.000µs (ivb) Time to blt from GTT to LLC 1048576 bytes: 1400.000µs (snb) Time to blt from GTT to LLC 1048576 bytes: 938.000µs (ivb) Time to copy from GTT to LLC 16384 bytes: 118.000µs (snb) Time to copy from GTT to LLC 16384 bytes: 134.000µs (ivb) Time to copy from GTT to LLC 1048576 bytes: 6723.000µs (snb) Time to copy from GTT to LLC 1048576 bytes: 7424.000µs (ivb) And conversely, Time to blt from LLC to GTT 16384 bytes: 10.000µs (snb) Time to blt from LLC to GTT 16384 bytes: 8.000µs (ivb) Time to blt from LLC to GTT 1048576 bytes: 217.000µs (snb) Time to blt from LLC to GTT 1048576 bytes: 135.000µs (ivb) Time to copy from LLC to GTT 16384 bytes: 4.000µs (snb) Time to copy from LLC to GTT 16384 bytes: 4.000µs (ivb) Time to copy from LLC to GTT 1048576 bytes: 270.000µs (snb) Time to copy from LLC to GTT 1048576 bytes: 179.500µs (ivb) It seems clear then that even with the extra synchronisation cost copying from the GTT is much preferable with the GPU than using the uncached reads by the CPU. Streaming write-combines from the CPU into the GTT seem about as efficient as we can manage, so continue to use the mapping unless busy. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>		2012-06-06 10:59:58 +01:00
man	Fix man page formatting	2011-08-01 15:37:29 +01:00
src	sna: Use GPU for readback onto CPU bo	2012-06-06 10:59:58 +01:00
test	test: Add a very basic test to exercise BLT text drawing	2012-06-01 11:06:21 +01:00
uxa	intel: port legacy and uxa to new API.	2012-06-05 11:31:45 +01:00
.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	Revert "Update autotools configuration"	2012-02-23 14:43:34 -05:00
NEWS	configure: Version bump for 2.19.0 release	2012-04-29 21:49:04 +01:00
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	Revert "Update autotools configuration"	2012-02-23 14:43:34 -05:00
configure.ac	Allow runtime switching of AccelMethod between uxa/sna and even glamor	2012-05-24 19:01:22 +01:00

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