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Keith Packard e4e3447603 Add RandR leases with modesetting driver support [v6]
This adds support for RandR CRTC/Output leases through the modesetting
driver, creating a lease using new kernel infrastructure and returning
that to a client through an fd which will have access to only those
resources.

v2:	Restore CRTC mode when leases terminate

	When a lease terminates for a crtc we have saved data for, go
	ahead and restore the saved mode.

v3:	Report RR_Rotate_0 rotations for leased crtcs.

	Ignore leased CRTCs when selecting screen size.

	Stop leasing encoders, the kernel doesn't do that anymore.

	Turn off crtc->enabled while leased so that modesetting
	ignores them.

	Check lease status before calling any driver mode functions

	When starting a lease, mark leased CRTCs as disabled and hide
	their cursors. Also, check to see if there are other
	non-leased CRTCs which are driving leased Outputs and mark
	them as disabled as well. Sometimes an application will lease
	an idle crtc instead of the one already associated with the
	leased output.

	When terminating a lease, reset any CRTCs which are driving
	outputs that are no longer leased so that they start working
	again.

	This required splitting the DIX level lease termination code
	into two pieces, one to remove the lease from the system
	(RRLeaseTerminated) and a new function that frees the lease
	data structure (RRLeaseFree).

v4:	Report RR_Rotate_0 rotation for leased crtcs.

v5: Terminate all leases on server reset.

	Leases hang around after the associated client exits so that
	the client doesn't need to occupy an X server client slot and
	consume a file descriptor once it has gotten the output
	resources necessary.

	Any leases still hanging around when the X server resets or
	shuts down need to be cleaned up by calling the kernel to
	terminate the lease and freeing any DIX structures.

	Note that we cannot simply use the existing
	drmmode_terminate_lease function on each lease as that wants
	to also reset the video mode, and during server shut down that

   modesetting: Validate leases on VT enter

	The kernel doesn't allow any master ioctls to run when another
	VT is active, including simple things like listing the active
	leases. To deal with that, we check the list of leases
	whenever the X server VT is activated.

   xfree86: hide disabled cursors when resetting after lease termination

	The lessee may well have played with cursors and left one
	active on our screen. Just tell the kernel to turn it off.

v6:	Add meson build infrastructure

[Also bumped libdrm requirement - ajax]

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2018-02-27 12:39:50 -05:00
composite composite: Fix use-after-free in compReparentWindow 2018-02-23 12:12:15 -05:00
config config: fix NULL value detection for ID_INPUT being unset 2018-01-08 14:48:04 -05:00
damageext Use ARRAY_SIZE all over the tree 2017-10-30 13:45:20 -04:00
dbe dbe: Unvalidated variable-length request in ProcDbeGetVisualInfo (CVE-2017-12177) 2017-10-10 23:33:44 +02:00
dix dix: avoid deferencing NULL PtrCtrl 2017-12-06 11:59:28 -05:00
doc Rewrite the byte swapping macros. 2017-04-25 15:01:23 -07:00
dri3 Build: Use dri3proto/libdrm CFLAGS 2017-09-20 13:25:46 -04:00
exa render: Store and use all 16bpc of precision for solid pixels (v2.1) 2018-02-26 16:46:34 -05:00
fb render: Store and use all 16bpc of precision for solid pixels (v2.1) 2018-02-26 16:46:34 -05:00
glamor glamor: Bump version to 1.0.1 to signal depth 30 support. 2018-02-27 10:18:07 -05:00
glx glx: Don't pass NULL to glxGetClient 2018-02-26 12:28:55 -05:00
hw Add RandR leases with modesetting driver support [v6] 2018-02-27 12:39:50 -05:00
include Add RandR leases with modesetting driver support [v6] 2018-02-27 12:39:50 -05:00
m4 Add ax_pthread.m4 to m4/ 2016-05-29 19:20:51 -07:00
man Xserver.man: document more transports for -nolisten & -listen options 2015-10-28 14:16:28 -04:00
mi mi: Mention extension loading in verbose logs 2018-02-21 13:24:29 -05:00
miext sync: Clean up a bit of header formatting. 2017-09-20 13:19:27 -04:00
os os: avoid uninitialized offsets in backtrace 2018-02-19 13:12:18 -05:00
present Revert "present: Only send PresentCompleteNotify events to the presenting client" 2018-01-24 11:40:50 +01:00
pseudoramiX Unvalidated lengths 2017-10-10 23:33:34 +02:00
randr Add RandR leases with modesetting driver support [v6] 2018-02-27 12:39:50 -05:00
record Add a Meson build system alongside autotools. 2017-04-26 15:25:27 -07:00
render render: Store and use all 16bpc of precision for solid pixels (v2.1) 2018-02-26 16:46:34 -05:00
test miinitext: Load GLX on the mi path 2018-02-14 17:04:48 -05:00
Xext shm, xwayland: prefer atomic close-on-exec without O_TMPFILE 2018-02-02 15:28:46 -05:00
xfixes xfixes: Restore monitoring of animated cursors 2018-02-14 13:52:45 -05:00
Xi Use ARRAY_SIZE all over the tree 2017-10-30 13:45:20 -04:00
xkb xkb: initialize tsyms 2017-11-06 16:49:11 -05:00
.appveyor.yml Add an .appveyor.yml for AppVeyor CI 2017-09-18 13:00:59 -04:00
.dir-locals.el Add .dir-locals.el 2013-08-17 12:17:36 +02:00
.gitignore .gitignore: Add new autotools file 'test-driver' 2014-04-21 13:41:42 -07:00
.travis.yml travis: Bump linux Dockerfile to v7 for new meson 2017-10-24 10:55:53 -04:00
autogen.sh autogen: Set a default subject prefix for patches 2016-02-08 17:41:38 -05:00
configure.ac Add RandR leases with modesetting driver support [v6] 2018-02-27 12:39:50 -05:00
COPYING modesetting: Merge modesetting's COPYING into the xserver's. 2014-09-15 12:46:02 -07:00
devbook.am doc: Create a script to filter xmlto output 2015-01-05 14:24:06 -08:00
docbook.am docbook.am: embed css styles inside the HTML HEAD element 2011-09-21 14:07:49 -07:00
fix-miregion Change region implementation names to eliminate the 'mi' prefix 2010-06-05 17:47:32 -07:00
fix-miregion-private Change region implementation names to eliminate the 'mi' prefix 2010-06-05 17:47:32 -07:00
fix-patch-whitespace Rename region macros to eliminate screen argument 2010-06-05 18:59:00 -07:00
fix-region Rename region macros to eliminate screen argument 2010-06-05 18:59:00 -07:00
Makefile.am automake: Fix 'make distcheck' 2018-01-22 17:19:03 -05:00
manpages.am xorg: Change __XCONFIGFILE__ to XCONFIGFILE (and DIR) to fix scan.c. 2017-04-25 15:01:23 -07:00
meson_options.txt meson: Make DGA extension optional 2018-02-19 13:14:43 -05:00
meson.build Add RandR leases with modesetting driver support [v6] 2018-02-27 12:39:50 -05:00
README README: Add link to fd.o CoC 2017-04-11 08:51:34 -04:00
xorg-server.m4 macros: clarify documentation 2012-11-05 13:24:57 -06:00
xorg-server.pc.in xfree86: link modules against Xorg symbols on Cygwin 2012-04-05 21:57:07 -05:00
xserver.ent.in doc: relocate xserver.ent in the package root directory 2011-05-14 11:22:26 -07:00

					X Server

The X server accepts requests from client applications to create windows,
which are (normally rectangular) "virtual screens" that the client program
can draw into.

Windows are then composed on the actual screen by the X server
(or by a separate composite manager) as directed by the window manager,
which usually communicates with the user via graphical controls such as buttons
and draggable titlebars and borders.

For a comprehensive overview of X Server and X Window System, consult the
following article:
https://en.wikipedia.org/wiki/X_server

All questions regarding this software should be directed at the
Xorg mailing list:

        https://lists.freedesktop.org/mailman/listinfo/xorg

Please submit bug reports to the Xorg bugzilla:

        https://bugs.freedesktop.org/enter_bug.cgi?product=xorg

The master development code repository can be found at:

        git://anongit.freedesktop.org/git/xorg/xserver

        https://cgit.freedesktop.org/xorg/xserver

For patch submission instructions, see:

	https://www.x.org/wiki/Development/Documentation/SubmittingPatches

For more information on the git code manager, see:

        https://wiki.x.org/wiki/GitPage

As with other projects hosted on freedesktop.org, X.Org follows its
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yourself in a respectful and civilized manner when using the above
mailing lists, bug trackers, etc:

	https://www.freedesktop.org/wiki/CodeOfConduct