Commit Graph

1874 Commits

Author SHA1 Message Date
Ross Burton 6a2ce6c5da compiler.h: only use inx/outx on ARM with glibc
musl only implements inx/outx on x86, so check for __GLIBC__ instead of
__linux__.

Signed-off-by: Ross Burton <ross.burton@intel.com>
2018-09-25 14:25:56 +00:00
Eric Anholt b8b64cd627 xorg: Don't log "Build Operating System: Linux 4.9.0-5-amd64 x86_64 Debian"
I don't think this is useful information to have in the log, and it's
a bunch of autotools and meson logic to produce it.

Signed-off-by: Eric Anholt <eric@anholt.net>
2018-09-19 13:15:04 -07:00
Adam Jackson a56da0ff28 include: Remove now-dead declarations
60ec8ead broke the autotools build:

    sdksyms.o:(.data+0x58): undefined reference to `InitConnectionLimits'
    sdksyms.o:(.data+0x2ec8): undefined reference to `xf86ServerName'
    collect2: error: ld returned 1 exit status
    Makefile:811: recipe for target 'Xorg' failed

Likewise 3a4d7c79 for InitConnectionLimits.

Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-09-12 17:23:53 -04:00
Adam Jackson a2c1260958 xfree86: Remove vestigial lastScrnFlag
Only the mga XAA code ever set this (hence the compat macro), since XAA
is long gone this can go too.

Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-09-12 20:47:15 +00:00
Adam Jackson c7414f4d07 xfree86: Remove NoTrapSignals
This was dangerous on UMS and largely pointless on KMS.
2018-09-12 20:47:15 +00:00
Adam Jackson d1aeaad5c6 xfree86: Remove a fallback path we never hit
If it's really this important we should just do it and not complain. We
never do it so it must not matter.

Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-09-12 20:47:15 +00:00
Adam Jackson 771980fc02 xfree86: Remove some not-terribly-useful debugging
I'm sure printing the address of function pointers in modules you'd
loaded might have made sense back when we rolled our own dlopen, but we
got better.

Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-09-12 20:47:15 +00:00
Adam Jackson 6a094185d1 xfree86: Remove some redundant zero-fill for ScrnInfoRec
xf86AllocateScreen() callocs these for us.

Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-09-12 20:47:15 +00:00
Adam Jackson 60ec8eadc3 xfree86: Remove unused xf86GetServerName()
Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-09-12 20:47:15 +00:00
Adam Jackson 7d689f049c xfree86: Fix Option "MaxClients" validation
The old code would not in fact validate the option value, though it
might complain about it in the log. It also didn't let you set some
legal values that the -maxclients command line option would.

Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-09-12 19:31:07 +00:00
Adam Jackson d791c8e5ab dga: Make shutdown less magical and/or terrifying
DGAShutdown() walks every screen and attempts to reset the mode.  That's
maybe a reasonable thing to do, although the explicit loop is certainly
a bad smell.

In ddxGiveUp it's called after we've torn down the vga arbiter - and in
fact most of the rest of screen state - which is... very very bad.  The
other place it's called is from the Control-Alt-BackSpace handler, where
we don't even attempt to do vga arb setup, and where in any case we're
going to escape the main loop eventually anyway.

Move all that cleanup work inside DGACloseScreen. This means it happens
earlier in server teardown than previously, but not in a way you're ever
going to be upset about.

Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-09-12 19:18:05 +00:00
Adam Jackson 3d06d111b2 dga: Simplify mieq handler registration
Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-09-12 19:18:05 +00:00
Julien Isorce f98ff253c7 xfree86: define FOURCC_NV12 and XVIMAGE_NV12
Useful for glamor.

Signed-off-by: Julien Isorce <jisorce@oblong.com>
Tested-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11 15:54:57 -04:00
Eric Anholt 049d2346ab meson: Make FALLBACK_INPUT_DRIVER configurable in meson.
This makes us match the featureset of autotools, and also fixes the
non-Linux default value to match.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2018-08-09 13:42:54 -04:00
Eric Anholt accd32a466 xorg: Remove the XF86PM define.
We already have pm_noop.c being built most of the time for the
no-OS-PM case, so just switch to always using it.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2018-08-02 10:27:37 -04:00
Keith Packard 38ff29ec8e modesetting: Allow a DRM fd to be passed on command line with -masterfd [v2]
This lets an application open a suitable DRM device and pass the file
descriptor to the mode setting driver through an X server command line
option, '-masterfd'.

There's a companion application, xlease, which creates a DRM master by
leasing an output from another X server. That is available at

	git clone git://people.freedesktop.org/~keithp/xlease

v2:
	Always print usage, but note that it can't be used if
	setuid/gid

	Suggested-by: Lyude Paul <lyude@redhat.com>

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
2018-06-28 22:54:22 -07:00
Matt Turner 166ac294ae xfree86: Inline xf86{Read,Write}Mmio{8,16,32} on alpha
In commit 9db2af6f75 (xfree86: Remove xf86{Map,Unmap}VidMem) we
somehow stopped exporting xf86{Read,Write}Mmio{8,16,32}. Since the
function pointer indirection was intended to support dense vs sparse and
sparse support is now gone, we can just make the functions static inline
in compiler.h and avoid all of this.

Bugzilla: https://bugs.gentoo.org/548906
Tested-by: Christopher May-Townsend <chris@maytownsend.co.uk>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
2018-06-11 14:05:04 -07:00
Aaron Plattner 574069c291 xfree86: Restore newline before "X Protocol Version" string
The newline before the protocl version got lost in commit
6cbefc3e0a. Prior to that commit, the
release date printed a newline at the end:

 X.Org X Server 1.19.6
 Release Date: 2017-12-20
 X Protocol Version 11, Revision 0
 Build Operating System: Linux 4.14.12-1-ARCH x86_64

Now, that string gets run together with the version:

 X.Org X Server 1.19.99.903 (1.20.0 RC 3)X Protocol Version 11, Revision 0
 Build Operating System: Linux

Since the version string printing has a variety of #ifdefs in it, just
add the newline to the begining of the protocol version string.

Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2018-04-03 14:59:25 +10:00
Adam Jackson df13ea7da9 xfree86: Add Option "Debug" to ServerFlags
This provides a generic way to control obscure runtime behavior knobs
without making interface promises.

Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-03-28 16:33:52 -04:00
Adam Jackson e3baacacda meson: Add libdrm to hw/xfree86/common's dependencies
Signed-off-by: Adam Jackson <ajax@redhat.com>
Acked-by: Keith Packard <keithp@keithp.com>
2018-03-27 10:13:18 -04:00
Adam Jackson 6cbefc3e0a autotools: Stop caring about XORG_DATE
Signed-off-by: Adam Jackson <ajax@redhat.com>
Acked-by: Keith Packard <keithp@keithp.com>
2018-03-27 10:13:17 -04:00
Nicolai Hähnle 75a869a4e7 xfree86: replace all uses of xf86PrivsElevated with PrivsElevated
[... but leave it defined and exported, since we're ABI-frozen - ajax]

Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Ben Crocker <bcrocker@redhat.com>
Reviewed-by: Antoine Martin <antoine@nagafix.co.uk>
Tested-by: Ben Crocker <bcrocker@redhat.com>

restore abi
2018-03-21 11:14:07 -04:00
Nicolai Hähnle 9ef602de46 os: move xf86PrivsElevated here
Having different types of code all trying to check for elevated privileges
is a bad idea. This implementation is the most thorough one.

Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Ben Crocker <bcrocker@redhat.com>
Reviewed-by: Antoine Martin <antoine@nagafix.co.uk>
Tested-by: Ben Crocker <bcrocker@redhat.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2018-03-21 10:58:39 -04:00
Louis-Francis Ratté-Boulianne cef12efc15 glamor: Implement GetSupportedModifiers
Implement function added in DRI3 v1.1.

A newest version of libepoxy (>= 1.4.4) is required as earlier
versions use a problematic version of Khronos
EXT_image_dma_buf_import_modifiers spec.

v4: Only send scanout-supported modifiers if flipping is possible
v5: Fix memory corruption in XWayland (uninitialized pointer)

Signed-off-by: Louis-Francis Ratté-Boulianne <lfrb@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Acked-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2018-03-05 13:27:55 -05:00
Laurent Carlier e790bc621b dga: #if XFreeXDGA → #ifdef XFreeXDGA
../include/events.h:32:14: error: #if with no expression

Signed-off-by: Laurent Carlier <lordheavym@gmail.com>
2018-02-19 13:14:43 -05:00
Adam Jackson d8ec33fe05 glx: Use vnd layer for dispatch (v4)
The big change here is MakeCurrent and context tag tracking. We now
delegate context tags entirely to the vnd layer, and simply store a
pointer to the context state as the tag data. If a context is deleted
while it's current, we allocate a fake ID for the context and move the
context state there, so the tag data still points to a real context. As
a result we can stop trying so hard to detach the client from contexts
at disconnect time and just let resource destruction handle it.

Since vnd handles all the MakeCurrent protocol now, our request handlers
for it can just be return BadImplementation. We also remove a bunch of
LEGAL_NEW_RESOURCE, because now by the time we're called vnd has already
allocated its tracking resource on that XID.

v2: Update to match v2 of the vnd import, and remove more redundant work
like request length checks.

v3: Add/remove the XID map from the vendor private thunk, not the
backend. (Kyle Brenneman)

v4: Fix deletion of ghost contexts (Kyle Brenneman)

Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-02-14 17:04:44 -05:00
Jeff Smith fd21b282dc xfree86: Only call PreInit handler if it exists for device
DoConfigure() attempts to call the PreInit handler on a device without
checking that the handler exists.

Check that the PreInit handler exists for a device before attempting to
call it.

Signed-off-by: Jeff Smith <whydoubt@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2018-02-05 15:40:20 -05:00
Jeff Smith e81031f3fd xfree86: Allocate sufficienct space for dev2screen array
When the dev2screen is sized to xf86NumDrivers in DoConfigure(),
subsequent code may attempt to write past the end of the array.

Size the dev2screen array to nDevToConfig instead.

Signed-off-by: Jeff Smith <whydoubt@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2018-02-05 15:40:17 -05:00
Jeff Smith 1a24a0ae7b xfree86: Do not use uninitialized pointer during probe
Commits b5dffbb and d75ffcd introduce code in xf86platformProbe() that
references a member of xf86configptr.  However, when using the
"-configure" option, xf86configptr may not be initialized when
xf86platformProbe() is called.

Avoid referencing a member of xf86configptr if uninitialized.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100405
Signed-off-by: Jeff Smith <whydoubt@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2018-02-05 15:40:13 -05:00
Michal Srb a9f68688f3 xfree86: Silence always true condition warning.
xf86pciBus.c:1464:21: warning: comparison of constant 256 with expression of type 'uint8_t' (aka 'unsigned char') is always true [-Wtautological-constant-out-of-range-compare]
    if (pVideo->bus < 256)

The code used to be in xf86FormatPciBusNumber and compared parameter which was int, but since b967bf2a it was inlined now it works with uint8_t.
2018-02-02 15:19:15 -05:00
Adam Jackson dd00e5466a xfree86: Remove broken RANDR disabling logic (v4)
The only way to get at xf86Info.disableRandR from configuration is
Option "RANDR" "foo" in ServerFlags, which probably nobody is using
seeing as it's not documented. The other way it could be set is if a
screen supports RANDR 1.2, in which case we set it to avoid trying to
use the RANDR 1.1 compat code. If the second screen is not 1.2-aware
then this would mean we don't do RANDR setup on the second screen at
all, which would almost certainly crash the first time you try to do
RANDR operations on the second screen.

Fix that all by deletion, and just check whether the screen already has
RANDR initialized before installing the stub support. If you want to
disable RANDR, use the Extensions section of xorg.conf instead.

v2: Also remove a now entirely pointless log message, telling you to
ignore a line we will no longer print.

v3: Explain the fallback path in InitOutput. (Keith Packard)

v4: Check whether the RANDR private key is initialized before trying to
use it to look up the screen private.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
2018-01-29 14:31:34 -05:00
Adam Jackson 5cb330cd5d Revert "xfree86: Remove broken RANDR disabling logic (v3)"
Tsk. This broke vesa for me, the rrGetScrPriv in InitOutput will crash
if randr's screen private key hasn't been initialized yet. That seems
dumb, but let's not leave it broken.

This reverts commit c08d7c1cdd.
2018-01-24 15:24:00 -05:00
Adam Jackson c08d7c1cdd xfree86: Remove broken RANDR disabling logic (v3)
The only way to get at xf86Info.disableRandR from configuration is
Option "RANDR" "foo" in ServerFlags, which probably nobody is using
seeing as it's not documented. The other way it could be set is if a
screen supports RANDR 1.2, in which case we set it to avoid trying to
use the RANDR 1.1 compat code. If the second screen is not 1.2-aware
then this would mean we don't do RANDR setup on the second screen at
all, which would almost certainly crash the first time you try to do
RANDR operations on the second screen.

Fix that all by deletion, and just check whether the screen already has
RANDR initialized before installing the stub support. If you want to
disable RANDR, use the Extensions section of xorg.conf instead.

v2: Also remove a now entirely pointless log message, telling you to
ignore a line we will no longer print.

v3: Explain the fallback path in InitOutput. (Keith Packard)

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
2018-01-24 11:39:31 -05:00
Michel Dänzer 75408f53d4 xf86XvMCScreenInit: Clear pScreenPriv->dixinfo when freeing pAdapt
Fixes double-free later in xf86XvMCCloseScreen, which would generally
cause fireworks.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
2018-01-24 11:21:08 -05:00
Martin Wilck a5e9bcad7a xfree86: add default modes for 16:9 and 16:10
Improve the user experience for users with wide screens by adding standard
16:9 and 16:10 modes to extramodes, as suggested previously
(https://lists.x.org/archives/xorg-devel/2016-February/048866.html).
Tested successfully on my laptop. Feedback welcome.

See also https://bugs.freedesktop.org/show_bug.cgi?id=37858.

Signed-off-by: Martin Wilck <mwilck@suse.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2018-01-18 14:16:35 -05:00
Keith Packard cf7517675d xfree86: Hold input_lock across SPRITE functions in VGA arbiter
Avoid scrambling the sprite functions wrapper.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101995
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2017-12-13 12:06:31 -05:00
Adam Jackson 4353d83f60 xfree86: remove xf86CaughtSignal etc.
This no longer does anything useful.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
2017-12-13 11:11:44 -05:00
Adam Jackson 0a255dceb7 xfree86: Remove xf86InterceptSignals
The only consumer of this is the Linux vm86 backend for int10 (which you
should not use), and there all it serves to do is make signals generated
by the vm86 task non-fatal. In practice this error appears never to
happen, and marching ahead with root privileges after arbitrary code has
raised a signal seems like a poor plan.

Remove the usage in the vm86 code, making this error fatal.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
2017-12-13 11:11:38 -05:00
Adam Jackson 722c8035dc xfree86: Remove xf86InterceptSigIll
This was added in ~2004 for the sis driver, to detect whether it could
use SSE for memcpy. Charmingly, the code to check whether that feature
exists in the server is:

    #if XORG_VERSION_CURRENT >= XORG_VERSION_NUMERIC(6,8,99,13,0)
    #define SISCHECKOSSSE           /* Automatic check OS for SSE; requires SigIll facility */
    #endif

Which means it has never worked in any modular server release.

A less gross way to do this is to check for SSE support with getauxval()
or /proc/cpuinfo or similar. Since no driver is using the existing
intercept mechanism, drop it.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
2017-12-13 11:11:23 -05:00
Daniel Martin d5379b350f Use ARRAY_SIZE all over the tree
Roundhouse kick replacing the various (sizeof(foo)/sizeof(foo[0])) with
the ARRAY_SIZE macro from dix.h when possible. A semantic patch for
coccinelle has been used first. Additionally, a few macros have been
inlined as they had only one or two users.

Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2017-10-30 13:45:20 -04:00
Nathan Kidd 1b1d4c0469 hw/xfree86: unvalidated lengths
This addresses:
CVE-2017-12180 in XFree86-VidModeExtension
CVE-2017-12181 in XFree86-DGA
CVE-2017-12182 in XFree86-DRI

Reviewed-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Nathan Kidd <nkidd@opentext.com>
Signed-off-by: Julien Cristau <jcristau@debian.org>
2017-10-10 23:33:44 +02:00
Eric Anholt 5abaa50b29 meson: Move the BUILD_DATE/TIME setup to configure time.
By having it as a custom_target with build_always, every "ninja -C
build" would rebuild Xorg for the new date/time, even if the rest of
Xorg didn't change.

We could build the rest of Xorg into a static lib, and regenerate
date/time when the static lib changes and link that into a final Xorg,
but BUILD_DATE/TIME is such a dubious feature (compared to including a
git sha, which is easy with meson) it doesn't seem worth the build
time cost.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2017-09-13 11:14:57 -04:00
Eric Anholt 05e7e8b587 meson: Include BUILD_DATE in the meson xf86Build.h.
Due to a typo, I only had BUILD_TIME present.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2017-09-13 11:14:53 -04:00
Eric Anholt 2b080a14c8 meson: Respect SOURCE_DATE_EPOCH for reproducible builds.
This just copies over Chris Lamb's code from autotools.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2017-09-13 11:14:50 -04:00
Adam Jackson 3050d27761 xfree86: Fix X -configure driver sort yet again
There were two bugs here: The comparison function was not stable when
one or more of the drivers being compared is a fallback, and the last
driver in the list would never be moved.

Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-07-31 10:57:22 -04:00
Adam Jackson 5c8fb7d128 xfree86: Move DRICreatePCIBusID to xf86Pci.h
xf86str.h is parsed into sdksyms unconditionally but the symbol is only
defined when building with PCI support. Move the decl to a header that
sdksyms only parses when building PCI support.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Jon Turney <jon.turney@dronecode.org.uk>
2017-06-22 10:53:08 -04:00
Adam Jackson fbc4da6fef xfree86: Move DRICreatePCIBusID to the PCI code
This symbol is used by some DRI2+ drivers and there's nothing
DRI1-specific about it.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Acked-by: Keith Packard <keithp@keithp.com>
2017-06-20 16:37:24 -04:00
Adam Jackson b723da8390 xfree86: Remove unused xf86EnableVTSwitch
Signed-off-by: Adam Jackson <ajax@redhat.com>
Acked-by: Keith Packard <keithp@keithp.com>
2017-06-20 16:37:24 -04:00
Michel Dänzer 8e00dc59b5 xfree86: Fix printing of PCI domain/bus in xf86MatchPciInstances
It was attempting to use the <bus>@<domain> format accepted by the BusID
stanza, but the two values were swapped.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
2017-06-20 16:31:45 -04:00
Michel Dänzer e905b19a53 xfree86: Print BusID stanza compatible bus IDs for found devices
The PCI domain has to be specified like this:

 "PCI:<bus>@<domain>:<device>:<function>"

Example before:

 (--) PCI:*(0:0:1:0) 1002:130f:1043:85cb [...]
 (--) PCI: (0:1:0:0) 1002:6939:1458:229d [...]

after:

 (--) PCI:*(0@0:1:0) 1002:130f:1043:85cb [...]
 (--) PCI: (1@0:0:0) 1002:6939:1458:229d [...]

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
2017-06-20 16:31:34 -04:00
Peter Hutterer 96af794dc6 xfree86: up the path name size to 512 in xf86MatchDriverFromFiles
./hw/xfree86/common/xf86pciBus.c: In function ‘xf86MatchDriverFromFiles’:
../hw/xfree86/common/xf86pciBus.c:1330:52: warning: ‘snprintf’ output may be
truncated before the last format character [-Wformat-truncation=]
             snprintf(path_name, sizeof(path_name), "%s/%s", ^~~~~~~
../hw/xfree86/common/xf86pciBus.c:1330:13: note: ‘snprintf’ output between 2

dirent->d_name is 256, so sprintf("%s/%s") into a 256 buffer gives us:

and 257 bytes into a destination of size 256

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2017-05-29 13:52:55 +10:00
Jon Turney 7a90c9b24e xfree86: Hide unused variables when !XSERVER_LIBPCIACCESS
../hw/xfree86/common/xf86Config.c: In function ‘xf86HandleConfigFile’:
../hw/xfree86/common/xf86Config.c:2278:10: warning: unused variable ‘singlecard’ [-Wunused-variable]
../hw/xfree86/common/xf86Config.c:2277:17: warning: unused variable ‘scanptr’ [-Wunused-variable]

Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
Reviewed-by: Yaakov Selkowitz <yselkowitz@users.sourceforge.net>
2017-05-15 17:45:14 -04:00
Julien Cristau c394f6b273 Replace all checks for 'linux' macro with '__linux__'
gcc -std=c99 does not define the former, and it's a horrible namespace
confusion anyway.

Signed-off-by: Julien Cristau <jcristau@debian.org>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Tested-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2017-05-11 15:24:05 -04:00
Karol Kosik 5d3b6cc221 xfree86: Improved autoconfig drivers matching
Implementation of new drivers matching algorithm. New approach
doesn't add duplicate drivers and ease drivers matching phase.

v2: Re-commit the patch reverted in
    2388f5e583, with Aaron Plattner's
    fix squashed in (by anholt).

Signed-off-by: Karol Kosik <kkosik@nvidia.com>
Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Aaron Plattner <aplattner@nvidia.com> (v1)
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> (v1)
Tested-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Eric Anholt <eric@anholt.net>
2017-05-09 17:36:05 -07:00
Eric Anholt 2388f5e583 Revert "xfree86: Improved autoconfig drivers matching"
This reverts commit 112d0d7d01.

It broke Xorg for Adam, Peter, and myself, by failing hard when a
module load failed.

Signed-off-by: Eric Anholt <eric@anholt.net>
2017-05-09 15:02:30 -07:00
Adam Jackson d732c36597 xfree86: Silence a new glibc warning
glibc would like to stop declaring major()/minor() macros in
<sys/types.h> because that header gets included absolutely everywhere
and unix device major/minor is perhaps usually not what's expected. Fair
enough. If one includes <sys/sysmacros.h> as well then glibc knows we
meant it and doesn't warn, so do that if it exists.

Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-05-03 15:44:06 -04:00
Karol Kosik 112d0d7d01 xfree86: Improved autoconfig drivers matching
Implementation of new drivers matching algorithm. New approach
doesn't add duplicate drivers and ease drivers matching phase.

Signed-off-by: Karol Kosik <kkosik@nvidia.com>
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
2017-04-27 15:10:56 -04:00
Eric Anholt 1549e30372 Add a Meson build system alongside autotools.
This is a work in progress that builds Xvfb, Xephyr, Xwayland, Xnest,
and Xdmx so far.  The outline of Xquartz/Xwin support is in tree, but
hasn't been built yet.  The unit tests are also not done.

The intent is to build this as a complete replacement for the
autotools system, then eventually replace autotools.  meson is faster
to generate the build, faster to run the bulid, shorter to write the
build files in, and less error-prone than autotools.

v2: Fix indentation nits, move version declaration to project(), use
    existing meson_options for version-config.h's vendor name/web.

Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2017-04-26 15:25:27 -07:00
Eric Anholt c7be7a688a Use #ifdef instead of #if for features to make Meson easier.
We mostly use #ifdef throughout the tree, and this lets the generated
config.h files just be #define TOKEN instead of #define TOKEN 1.

Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2017-04-26 17:30:12 -04:00
Michel Dänzer 27a6b9f7c8 os: Handle SIGABRT
Without this, assertion failures can make life hard for users and those
trying to help them.

v2:
* Change commit log wording slightly to "can make life hard", since
  apparently e.g. logind can alleviate that somewhat.
* Set default handler for SIGABRT in
  hw/xfree86/common/xf86Init.c:InstallSignalHandlers() and
  hw/xquartz/quartz.c:QuartzInitOutput() (Eric Anholt)

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
2017-04-26 16:07:19 -04:00
Eric Anholt da27ca84b4 xorg: Change __XCONFIGFILE__ to XCONFIGFILE (and DIR) to fix scan.c.
parser/scan.c was checking for #ifdef XCONFIGFILE and XCONFIGDIR and
defaulting to "xorg.conf", and "xorg.conf.d", so if you had changed
__XCONFIGFILE__ to anything else, it would have got out of sync.
Settle on the name without gratuitous underscores.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
2017-04-25 15:01:23 -07:00
Adam Jackson e4d0757fc2 xfree86: Remove driver entity hooks and private
No driver is using these, as far as I know.

v2: Tripwire the entity hook arguments to xf86Config*Entity, fix
documentation (Eric Anholt)

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2017-03-30 11:32:02 -04:00
Adam Jackson 3360418767 dpms: Consolidate a bunch of stuff into Xext/dpms.c
Most of this is a legacy of the old "extmod" design where you could load
_some_ extensions dynamically but only if the server had been built with
support for them in the first place.

Note that since we now only initialize the DPMS extension if at least
one screen supports it, we no longer need DPMSCapableFlag: if it would
be false, we would never read its value.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2017-03-27 15:59:47 -04:00
Adam Jackson 7f1ef9289d dix: Lift DPMS to a screen hook
Following on from the previous change, this adds a DPMS hook to the
ScreenRec and uses that to infer DPMS support. As a result we can drop
the dpms stub code from Xext.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2017-03-27 15:59:42 -04:00
Adam Jackson 8ed0b00fce xfree86: Clean up DPMS support
Rather than setting up a per-screen private, just conditionally
initialize ScrnInfoRec::DPMSSet based on the config options, and inspect
that to determine whether DPMS is supported.

We also move the "turn the screen back on at CloseScreen" logic into the
DPMS extension's (new) reset hook. This would be a behavior change for
the non-xfree86 servers, if any of them had non-stub DPMS support.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2017-03-27 15:59:35 -04:00
Adam Jackson e33be78e2a xfree86: Remove 24bpp pixmap format support (v2)
There's really no reason to pretend to support this, apps hate it, all
we're doing is giving people a way to injure themselves. It doesn't work
anyway with any Radeon, any NVIDIA chip, or any Intel chip since i810.
Rip out all the logic for handling 24bpp pixmaps and framebuffers, and
silently ignore the old options that would ask for it.

The cirrus alpine driver has been updated to default to 16bpp, and both
it and the i810 driver can now use the 32->24 conversion code in shadow
if they want. All other drivers support 32bpp. Configurations that
explicitly request 24bpp in order to fit in VRAM will be broken now
though.

v2: Fix command line options to silently ignore 24bpp rather than fail

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-03-17 15:14:38 -04:00
Adam Jackson dc7ceda90f dispatch: Mark swapped dispatch as _X_COLD
This touches everything that ends up in the Xorg binary; the big missing
part is GLX since that's all generated code. Cuts about 14k from the
binary on amd64.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2017-03-01 10:16:20 -05:00
Adam Jackson 5d29b49366 xfree86: Reorganize the reserved ScrnInfoRec slots
First, move them to the end of the struct, for marginally better cache
locality for the struct members that actually have meaning; move the
existing slots at the end of the struct up near some others with similar
meanings. Second, only keep four slots each of integer, data pointer,
and function pointer; we've rarely used this escape hatch so this is
still plenty.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Acked-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-02-16 11:35:03 -05:00
Adam Jackson 47db92473f xfree86: Remove unused chipID/Rev from ScrnInfoRec
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Acked-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-02-16 11:35:03 -05:00
Adam Jackson 4dcf68e418 xfree86: Remove memClk from ScrnInfoRec
Never set by the core, not used in any modern driver.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Acked-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-02-16 11:35:03 -05:00
Adam Jackson 0b6f280602 xfree86: Remove Option "BiosBase" (v2)
Just no.

The ddxDesign chunk removes the whole para about xf86FixPciResource,
since it turns out that function doesn't exist at all anymore.

The only drivers that reference this at all are i128 and mga, and even
then only in the non-pciaccess path.

v2:
- Update commentary about i128/mga
- Don't remove the BiosBase keyword from the config parser since that
  would turn a no-op into a fatal error (Aaron Plattner)

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Acked-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-02-16 11:34:46 -05:00
Adam Jackson 76ef102be3 xfree86: Drop virtualFrom from ScrnInfoRec
Seriously not worth the effort of tracking this, especially now that
competent drivers don't have a limit.  The sis driver does inspect this
member, but hilariously does so only so it can print the same information
as the core does.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Acked-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-02-16 11:30:08 -05:00
Adam Jackson 5a945f54e7 xfree86: Remove max[HV]Value from ScrnInfoRec
Only mach64 and rendition actually use this feature.  Everyone else just
checks it in their ValidMode hook, they can too.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Acked-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-02-16 11:30:05 -05:00
Adam Jackson 3e1a23281d xfree86: Fix a comment about ScrnInfoRec
We don't actually need (or intend) to keep this struct the same across
revisions.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Acked-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-02-16 11:29:21 -05:00
Adam Jackson 3f9507ed2f xfree86: Bump video ABI to 24.0
c02f6a68 changed the layout of xf86CrtcFuncs.

Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-02-09 13:54:36 -05:00
Adam Jackson 8920dca009 loader: Remove unused arguments from LoadModule
Nobody was ever calling this with a non-null argument for subdir list or
pattern list.  Having done this, InitSubdirs is only ever called with a
NULL argument, so it's really just a complicated way of duplicating the
default list; we can remove that and just walk the list directly.

The minor error code was only ever used to distinguish among two cases
of LDR_BADUSAGE. Whatever.

Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-01-25 14:22:06 -05:00
Adam Jackson ba726ba6a7 loader: Turn LoaderListDirs into LoaderListDir
Callers only ever use this for a single directory anyway.

While we're at it, also move xf86DriverListFromCompile near its only
user in the X -configure code (and inline it out of existence), and
remove LoaderFreeDirList as it's unused (since X -configure is just
going to exit anyway, none of that code cares about cleanup).

Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-01-25 14:22:06 -05:00
Adam Jackson c54a9ca152 loader: Move loader list details to internal header
There's no reason a driver should ever care about this.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-01-25 14:22:06 -05:00
Adam Jackson d55284e863 xfree86: Remove a stray reference to font modules
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-01-25 14:22:06 -05:00
Adam Jackson d7879c4672 xfree86: Fix up some bad indentation
indent(1) gets confused by function-like macros with no trailing
semicolon, which is fair enough really.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-01-25 14:22:05 -05:00
Adam Jackson 5c577da5f3 xfree86: Remove DriverRec1 compat struct
The idea here is that the driver might have once been old enough to not
have the driverFunc slot in DriverRec, with the module ABI not having
changed when it was added. That was ages ago, and drivers always declare
themselves with DriverRec not DriverRec1, so uninitialized slots will
simply be zero.

Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-01-25 14:22:05 -05:00
Adam Jackson 2e3ad7e250 loader: Remove silly "unspecified" version handling
Everybody using this functionality specifies a major version, which
makes sense. If you don't care about a minor version, that's equivalent
to saying you require minor >= 0, so just say so; likewise patch level.

Likewise ABI class is always specified.

Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-01-25 14:22:05 -05:00
Adam Jackson ef533a912d loader: Remove unused loader error codes and dead enum
The enum has been unused since at least the removal of elfloader.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-01-25 14:22:05 -05:00
Adam Jackson 7e3cccf8e4 loader: Include fewer headers from xf86Module.h
This looks like more, but only if you don't compare it to the number
pulled in by misc.h.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-01-25 14:22:05 -05:00
Adam Jackson 97bd6e4536 loader: Remove *GetOS
This API is dumb.  uname(3) exists, feel free to use it, but ideally
write to the interface not to the OS.  There are a couple of drivers
using this API, they could all reasonably just not.

This also removes the OS name from the loader subdirectory path search.
Having /usr/lib/xorg shared across OSes is a non-goal here.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2017-01-25 14:22:05 -05:00
Emil Velikov 2196bb5038 xfree86: remove unused path from the LoadModule API
Similar to its little brother - LoadSubModule. Currently all call sites
provide NULL anyway ;-)

Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
2017-01-25 14:22:05 -05:00
Qiang Yu 1012510620 xfree86: fix wrong usage of xf86optionListMerge
Signed-off-by: Qiang Yu <Qiang.Yu@amd.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2017-01-11 11:13:33 +10:00
Hans De Goede b5dffbbac1 xfree86: Add ModulePath support for OutputClass config Sections
Allow OutputClass config snippets to modify the module-path.

Note that any specified ModulePaths will be pre-pended to the normal
ModulePath. The idea behind this is that any output hardware specific
modules should have preference over the normal modules.

One use-case for this is the nvidia binary driver, this allows a
config snippet like this:

Section "OutputClass"
    MatchDriver "nvidia"
    Modulepath "/usr/lib64/nvidia/modules"
EndSection

To get the nvidia glx specific glx module loaded, but only when the
nvidia kernel driver is loaded.

Together with the glvnd work done recently, this allows the nouveau
+ mesa and nvidia-binary userspace stacks to co-exist on the same
system without any ldconfig / xorg.conf tweaking and the xserver will
automatically do the right thing depending on which kernel driver
(nouveau or nvidia) is loaded.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-12-14 14:12:19 -05:00
Hans De Goede d75ffcdbf8 xfree86: Allow overriding primary GPU detection from an OutputClass section
Allow using:

Option "PrimaryGPU" "yes"

In an OutputClass section to override the default primary GPU device
selection which selects the GPU used as output by the firmware.

If multiple output devices match an OutputClass section with
the PrimaryGPU option set, the first one enumerated becomes the
primary GPU.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-12-14 14:12:12 -05:00
Hans De Goede ab1a65b775 xfree86: xf86platformProbe: split finding pci-info and setting primary GPU
This is a preparation patch for allowing an OutputClass section to
override the default primary GPU device selection.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-12-14 14:12:09 -05:00
Hans De Goede 9cd3cc7526 xfree86: Add options support for OutputClass Options
Add support for setting options in OutputClass Sections and having these
applied to any matching output devices.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-12-14 14:12:06 -05:00
Hans De Goede 08b84d7287 xfree86: Make OutputClassMatches take a xf86_platform_device
Make OutputClassMatches directly take a xf86_platform_device as argument,
rather then an index into xf86_platform_devices. This makes things
easier for callers which already have a xf86_platform_device pointer.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-12-14 14:12:04 -05:00
Hans De Goede c57c1e53ea xfree86: Free devlist returned by xf86MatchDevice
xf86MatchDevice returns a dynamically allocated list of GDevPtr-s,
free this when we're done with it.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-12-14 14:12:00 -05:00
Ben Crocker 8b335d9068 Fix a segfault that occurs if xorg.conf.d is absent:
In InitOutput, if xf86HandleConfigFile returns CONFIG_NOFILE
(which it does if no config file or directory is present), the
autoconfig flag is set, causing xf86AutoConfig to be called
later on.

xf86AutoConfig calls xf86OutputClassDriverList via the
call tree:

xf86AutoConfig =>
  listPossibleVideoDrivers =>
    xf86PlatformMatchDriver =>
      xf86OutputClassDriverList

and xf86OutputClassDriverList attempts to traverse a linked list
that is a member of the XF86ConfigRec struct pointed to by the
global xf86configptr, which is NULL at this point because the
XF86ConfigRec struct is only allocated (by xf86readConfigFile)
AFTER the config file and directory have been successfully
opened; the CONFIG_NOFILE return from xf86HandleConfigFile
occurs BEFORE the call to xf86readConfigFile which allocates
the XF86ConfigRec struct.

Rx: In read.c (for symmetry with xf86freeConfig, which already
appears in this file), add a new function xf86allocateConfig
which tests the value of xf86configptr and, if it's NULL,
allocates the XF86ConfigRec struct and deposits the pointer
in xf86configptr.  In xf86Parser.h, add a prototype for the
new xf86allocateConfig function.

Back in read.c, #include "xf86Config.h".  In xf86readConfigFile,
change the open-code call to calloc to a call to the new
xf86allocateConfig function.

In xf86AutoConfig.c, add a call to the new xf86allocateConfig function
to the beginning of xf86AutoConfig to make sure the XF86ConfigRec struct
is allocated.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Ben Crocker <bcrocker@redhat.com>
2016-12-07 13:18:56 -05:00
Hans de Goede 75c4f6e412 xfree86: Try harder to find atleast 1 non GPU Screen
If we did not find any non GPU Screens, try again ignoring the notion
of any video devices being the primary device. This fixes Xorg exiting
with a "no screens found" error when using virtio-vga in a
virtual-machine and when using a device driven by simpledrm.

This is a somewhat ugly solution, but it is the best I can come up with
without major surgery to the bus and probe code.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-12-05 11:38:57 -05:00
Hans de Goede 7121b03d32 xfree86: Make adding unclaimed devices as GPU devices a separate step
This is primarily a preparation patch for fixing the xserver exiting with
a "no screens found" error even though there are supported video cards,
due to the server not recognizing any card as the primary card.

This also fixes the (mostly theoretical) case of a platformBus capable
driver adding a device as GPUscreen before a driver which only supports
the old PCI probe method gets a chance to claim it as a normal screen.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-12-05 11:38:54 -05:00
Hans de Goede b72d161cad xfree86: Remove redundant ServerIsNotSeat0 check from xf86CallDriverProbe
If foundScreen is TRUE, then all the code below the removed if
will not execute until we reach the return foundScreen; at the
end, so this entire if block is redundant.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-12-05 11:38:39 -05:00
Peter Hutterer d13cb97442 ddx: add new call to purge input devices that weren't added
Special case for the systemd-logind case in xfree86: when we're vt-switched
away and a device is plugged in, we get a paused fd from logind. Since we
can't probe the device or do anything with it, we store that device in the
xfree86 and handle it later when we vt-switch back. The device is not added to
inputInfo.devices until that time.

When the device is removed while still vt-switched away, the the config system
never notifies the DDX. It only runs through inputInfo.devices and our device
was never added to that.

When a device is plugged in, removed, and plugged in again while vt-switched
away, we have two entries in the xfree86-specific list that refer to the same
device node, both pending for addition later. On VT switch back, the first one
(the already removed one) will be added successfully, the second one (the
still plugged-in one) fails. Since the fd is correct, the device works until
it is removed again. The removed devices' config_info (i.e. the syspath)
doesn't match the actual device we addded tough (the input number increases
with each plug), it doesn't get removed, the fd remains open and we lose track
of the fd count. Plugging the device in again leads to a dead device.

Fix this by adding a call to notify the DDX to purge any remainders of devices
with the given config_info, that's the only identifiable bit we have at this
point.

https://bugs.freedesktop.org/show_bug.cgi?id=97928

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2016-10-26 15:35:07 +10:00
Peter Hutterer 8fcf2fa78f xfree86: swap the list of paused devices to an xorg_list
No functional changes but it makes it easier to remove elements from the
middle of the list (future patch).

We don't have an init call into this file, so the list is manually
initialized.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2016-10-26 15:35:07 +10:00
Peter Hutterer 28d8855cd4 xfree86: use the right option traversal list to search for an option
They're identically laid-out structs but let's use the right type to search
for our desired value.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2016-10-26 15:35:07 +10:00