Check for integer overflow before using stuff->count in a multiplication,
to avoid compiler optimizing out due to undefined behaviour, but only
after we've checked to make sure stuff->count is in the range of the
request we're parsing.
Reported-by: jes@posteo.de
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
xserver/hw/xfree86/common/xf86Helper.c:1834:12: error: format ‘%ld’ expects argument of type ‘long int’, but argument 3 has type ‘Atom’ [-Werror=format=]
xserver/hw/xfree86/common/xf86Helper.c:1834:12: error: format ‘%ld’ expects argument of type ‘long int’, but argument 4 has type ‘Atom’ [-Werror=format=]
Atom is unfortunately unsigned long or unsigned int depending on the
architecture, so a cast is required.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Now since the installable libxf86config is gone, rename
libxf86config_internal to libxf86config.
Signed-off-by: Egbert Eich <eich@freedesktop.org>
Reviewed-by: Keith Packard <keithp@keithp.com>
The library used by the Xserver to read and parse the configuration file
could be built so that it culd be installed as a separate lib and used
by external programs.
Apparently there has not been any interest in this for quite a while as
this library has been broken for a long time now in the sense that it
was calling functions provided by the Xserver which were not implemented
for the external library.
Since this library is useless as it is anyway when built let's drop
support for it.
Signed-off-by: Egbert Eich <eich@freedesktop.org>
Reviewed-by: Keith Packard <keithp@keithp.com>
The correct refresh rate for this mode is 75, not 85.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Some ioctls may not be supported by the kernel however their failure
is non-fatal to the driver. Unfortunately we only know once we try
to execute the ioctl however the sematics of the fbdev driver API
doesn't allow upper layers to disable the call.
Instead of changing the fbdevHW driver API just disable the call to
this ioctl on the module level when detecting such a case.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Egbert Eich <eich@freedesktop.org>
The only drivers I can find that used this are the r128 and radeon DRI
drivers. r128 is dead and the radeon driver wasn't including Xorg's
compiler.h and still worked.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
When xf86RandR12Key is not set we will not get to the places where
these tests are done as the functions in question are not called.
In most cases we would have crashed before these checks anyway.
Signed-off-by: Egbert Eich <eich@freedesktop.org>
Reviewed-by: Keith Packard <keithp@keithp.com>
The X server frequently deals with SIGIO and SIGALRM interruptions.
If process execution is inside certain blocking system calls
when these signals arrive, e.g. with the kernel blocked on
a contended semaphore, the system calls will be interrupted.
Some system calls are automatically restartable (the kernel re-executes
them with the same parameters once the signal handler returns) but
only if the signal handler allows it.
Set SA_RESTART on the signal handlers to enable this convenient
behaviour.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
A user on a nouveau-driven card ran into a problem where DVI-D-1 and
DVI-I-1 were aliasing. The simplest fix is to provide the full connector
names. While we're at it, rename the output names to match what is in
the kernel, and start counting the connectors from 1 rather than 0. The
only deviation is HDMI vs HDMI-A, which kept its original name.
This will break backwards compatibility with existing xorg.conf's that
reference output names, but the alternative is to create a separate
counting system, further disconnecting from the kernel names.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Dave Airlie <airlied@redhat.com>
<termio.h> is obsolete. Using <termios.h> instead fixes building with
musl libc.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Felix Janda <felix.janda@posteo.de>
some X manuals use then escape sequence \/ when they want to render
a slash. That's bad because \/ is not a slash but an italic
correction, never producing any output, having no effect at all in
terminal output, and only changing spacing in a minor way in typeset
output.
Signed-off-by: Matthieu Herrb <matthieu@herrb.eu>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
xorg/xserver/hw/xfree86/dri/dri.c:1695:19: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 4 has type ‘DRIContextPrivPtr’ [-Werror=format=] ^
xorg/xserver/hw/xfree86/dri/dri.c:1695:19: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 5 has type ‘DRIContextPrivPtr’ [-Werror=format=]
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
xserver/hw/xfree86/ramdac/TI.c:118:12: error: format ‘%d’ expects argument of type ‘int’, but argument 4 has type ‘long unsigned int’ [-Werror=format=]
xserver/hw/xfree86/ramdac/TI.c:118:12: error: format ‘%d’ expects argument of type ‘int’, but argument 5 has type ‘long unsigned int’ [-Werror=format=]
xserver/hw/xfree86/ramdac/TI.c:118:12: error: format ‘%d’ expects argument of type ‘int’, but argument 6 has type ‘long unsigned int’ [-Werror=format=]
Use %lu for an unsigned long
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
xserver/hw/xfree86/common/xf86Events.c:183:5: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 3 has type ‘void *’ [-Werror=format=]
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Make the maximum number of clients user configurable, either from the command
line or from xorg.conf
This patch works by using the MAXCLIENTS (raised to 512) as the maximum
allowed number of clients, but allowing the actual limit to be set by the
user to a lower value (keeping the default of 256).
There is a limit size of 29 bits to be used to store both the client ID and
the X resources ID, so by reducing the number of clients allowed to connect to
the X server, the user can increase the number of X resources per client or
vice-versa.
Parts of this patch are based on a similar patch from Adam Jackson
<ajax@redhat.com>
This now requires at least xproto 7.0.28
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Descriptions for Options PageFlip and SWCursor.
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This adds zaphod and ZaphodHeads support
to the the in-server modesetting driver.
this is based on a request from Mario,
and on the current radeon driver, along
with some patches from Mario to bring things
up to the state of the art in Zaphod.
v2: fixup vblank fd registring.
v3: squash Mario's fixes.
modesetting: Allow/Fix use of multiple ZaphodHead outputs per x-screen.
modesetting: Take shift in crtc positions for ZaphodHeads configs into account.
modesetting: Add ZaphodHeads description to man page.
small cleanups (airlied).
Reviewed-and-tested-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Commit 90db5edf11 modified the signature of
StartPixmapTrackingProcPtr, so drivers implementing that need to use the updated
definition.
Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Header was added in 1dba5a0b19
but not in Makefile.am, resulting in missing header in the
distribution tarball.
Signed-off-by: Eric Anholt <eric@anholt.net>
glamor_name_from_pixmap and glamor_fd_from_pixmap return CARD16 and
CARD32 values via pointers. The current code uses uint16_t and
uint32_t which will probably be the same but it's safer to use the
datatypes as specified by the function.
Signed-off-by: Robert Ancell <robert.ancell@canonical.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Also remove vidmodeproc.h from the SDK since no drivers are using it.
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Adam Jackson <ajax@redhat.com>
One of the lacking features with output offloading was
that screen rotation didn't work at all.
This patch makes 0/90/180/270 rotation work with USB output
and GPU outputs.
When it allocates the shared pixmap it allocates it rotated,
and any updates to the shared pixmap are done using a composite
path that does the rotation. The slave GPU then doesn't need
to know about the rotation and just displays the pixmap.
v2:
rewrite the sync dirty helper to use the dst pixmap, and
avoid any strange hobbits and rotations.
This breaks ABI in two places.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
This fixes modesetting when glamor is disabled.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Based on code by Keith Packard, Eric Anholt, and Jason Ekstrand.
v2:
- Fix double free and flip_count underrun (caught by Mario Kleiner).
- Don't leak flip_vblank_event on the error_out path (Mario).
- Use the updated ms_flush_drm_events API (Mario, Ken).
v3: Hack around DPMS shenanigans. If all monitors are DPMS off, then
there is no active framebuffer; attempting to pageflip will hit the
error_undo paths, causing us to drmModeRmFB with no framebuffer,
which confuses the kernel into doing full modesets and generally
breaks things. To avoid this, make ms_present_check_flip check that
some CRTCs are enabled and DPMS on. This is an ugly hack that would
get better with atomic modesetting, or some core Present work.
v4:
- Don't do pageflipping if CRTCs are rotated (caught by Jason Ekstrand).
- Make pageflipping optional (Option "PageFlip" in xorg.conf.d), but
enabled by default.
v5: Initialize num_crtcs_on to 0 (caught by Michel Dänzer).
[airlied: took over]
v6: merge async flip support from Mario Kleiner
free sequence after failed vblank queue
handle unflip while DPMS'ed off (Michel)
move flip tracking into its own structure, and
fix up reference counting issues, and add comments.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Since we are shipped with the server and the server has it built-in,
don't bother trying to load it.
Don't remove or invert the if statement on purpose as a later
patch adds stuff in here.
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This is a specialization of ms_drm_abort that matches based on the drm
event queue's sequence number.
Based on code by Keith Packard.
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
I want to use this in present.c.
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Previously, ms_flush_drm_events() returned a boolean value, and it was
very easy to interpret the meaning incorrectly. Now, we return an
integer value.
The possible outcomes of this call are:
- poll() raised an error (formerly TRUE, now -1 - poll's return value)
- poll() said there are no events (formerly TRUE, now 0).
- drmHandleEvent() raised an error (formerly FALSE, now the negative
value returned by drmHandleEvent).
- An event was successfully handled (formerly TRUE, now 1).
The nice part is that this allows you to distinguish errors (< 0),
nothing to do (= 0), and success (1). We no longer conflate errors
with success.
v2: Change ms_present_queue_vblank to < 0 instead of <= 0, fixing an
unintentional behavior change. libdrm may return EBUSY if it's
received EINTR for more than a second straight; just keep retrying
in that case. Suggested by Jasper St. Pierre.
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
This adds support for reverse prime to the modesetting driver.
Reverse prime is where we have two GPUs in the display chain,
but the second GPU can't scanout from the shared pixmap, so needs
an extra copy to the on screen pixmap.
This allows modesetting to support this scenario while still
supporting the USB offload one.
v1.1:
fix comment + ret = bits (Eric)
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This allows a glamor enabled master device to have
slave USB devices attached.
Tested with modesetting on SNB + USB.
It relies on the previous patch to export linear
buffers from glamor.
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Michel pointed out I broke Zaphod with the initial auto add
gpu devices change,
Fix this, by only auto adding GPU devices if we are screen 0
and there are no other screens in the layout. Anyone who
wants to assign GPU devices can specify it in the xorg.conf
for this use case.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
I doubt anyone builds with this turned off or has done for a long
time.
It helps my eyes bleed slightly less when reading the code, I've left
the define in place as some drivers use it.
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Right now, Xorg does not install DBus matches for "PauseDevice" /
"ResumeDevice". Therefore, it should usually not receive those DBus
signals from logind. It is just a coincidence that systemd-logind sends
those signals in a directed manner right now. Therefore, dbus-daemon
bypasses the broadcast matches.
However, this is not ABI and Xorg should not rely on this. systemd-logind
is free to send those signals as broadcasts, in which case Xorg will
freeze the VT. Fix this by always installing those matches.
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Keith Packard <keithp@keithp.com>
Reported-by: Jan Alexander Steffens <jan.steffens@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit fixes a small mistake in Xorg.wrap.1 .
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
systemd-logind integration does not work when starting X on a new tty, as
that detaches X from the current session and after hat systemd-logind revokes
all rights any already open fds and refuses to open new fds for X.
This means that currently e.g. "startx -- vt7" breaks, and breaks badly,
requiring ssh access to the system to kill X.
The fix for this is easy, we must not use systemd-logind integration when
not using KeepTty, or iow we may only use systemd-logind integration together
with KeepTty.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Aaron Plattner <aplattner@nvidia.com>
linux_parse_vt_settings() was split out of xf86OpenConsole so that it can
be called earlier during systemd-logind init, but it is possible to run
the xserver in such a way that xf86OpenConsole() is never used.
The FatalError calls in linux_parse_vt_settings() may stop the Xorg xserver
from working when e.g. no /dev/tty0 is present in such a setup.
This commit adds a may_fail parameter to linux_parse_vt_settings() which
can be used to make linux_parse_vt_settings() fail silenty with an error
return in this case, rather then calling FatalError().
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
systemd-logind integration does not work when starting X on a new tty, as
that detaches X from the current session and after hat systemd-logind revokes
all rights on any already open fds and refuses to open new fds for X.
This means that currently e.g. "startx -- vt7" breaks, and breaks badly,
requiring ssh access to the system to kill X.
The fix for this is easy, we must not use systemd-logind integration when
not using KeepTty, or iow we may only use systemd-logind integration together
with KeepTty.
But the final KeepTty value is not known until the code to chose which vtno to
run on has been called, which currently happens after intializing
systemd-logind.
This commit is step 1 in fixing the "startx -- vt7" breakage, it factors out
the linux xf86OpenConsole bits which set xf86Info.vtno and keepTty so that
these can be called earlier. Calling this earlier is safe as this code has
no side effects other than setting xf86Info.vtno and keepTty.
Note this basically only moves a large chunk of xf86OpenConsole() into
linux_parse_vt_settings() without changing a single line of it, this is
hard to see in the diff because the identation level has changed.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
