The new platform bus code and the old PCI bus code overlap. Platform bus
can handle any type of device, including PCI devices, whereas the PCI code
can only handle PCI devices. Some drivers only support the old style
PCI-probe methods, but the primary device detection code is server based,
not driver based; so we might end up with a primary device which only has
a PCI bus-capable driver, but was detected as primary by the platform
code, or the other way around.
(The above paragraph was shamelessly stolen from Hans de Goede, and
customized.)
The latter case applies to QEMU's virtio-gpu-pci device: it is detected as
a BUS_PCI primary device, but we actually probe it first (with the
modesetting driver) through xf86platformProbeDev(). The
xf86IsPrimaryPlatform() function doesn't recognize the device as primary
(it bails out as soon as it sees BUS_PCI); instead, we add the device as a
secondary graphics card under "autoAddGPU". In turn, the success of this
automatic probing-as-GPU prevents xf86CallDriverProbe() from proceeding to
the PCI probing.
The result is that the server exits with no primary devices detected.
Commit cf66471353 ("xfree86: use udev to provide device enumeration for
kms devices (v10)") added "cross-bus" matching to xf86IsPrimaryPci(). Port
that now to xf86IsPrimaryPlatform(), so that we can probe virtio-gpu-pci
as a primary card in platform bus code.
Cc: Adam Jackson <ajax@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Keith Packard <keithp@keithp.com>
Cc: Marcin Juszkiewicz <mjuszkiewicz@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Tested-By: Marcin Juszkiewicz <mjuszkiewicz@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Xorg -configure relies on the bus implementation, e.g.
xf86pciBus.c to call xf86AddBusDeviceToConfigure(). The new
xf86platformBus code does not have support for this.
Almost all drivers support both the xf86platformBus and xf86pciBus
nowadays, and the generic xf86Bus xf86CallDriverProbe() function
prefers the new xf86platformBus probe method when available.
Since the platformBus paths do not call xf86AddBusDeviceToConfigure()
this results in Xorg -configure failing with the following error:
"No devices to configure. Configuration failed.".
Adding support for the xf86Configure code to xf86platformBus.c
is non trivial and since we advise users to normally run without
any Xorg.conf at all not worth the trouble.
However some users still want to use Xorg -configure to generate a
template config file, this commit implements a minimal fix to make
things work again for PCI devices by skipping the platform
probe method when xf86DoConfigure is set.
This has been tested on a system with integrated intel graphics,
with both the intel and modesetting drivers and restores Xorg -configure
functionality on both cases.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This loop was written in a buggy style, causing a NULL driver ptr to be
passed to copyScreen(). copyScreen() only uses that to generate an
identifier string, so this is mostly harmless on systems that accept
NULL for asprintf() "%s" format. (the generated identifiers are off
by one wrt the driver names and the last one contains NULL.
For systems that don't accept NULL for '%s' this would cause a
segmentation fault when this code is used (no xorg.conf, but partial
config in xorg.conf.d for instance).
Signed-off-by: Matthieu Herrb <matthieu@herrb.eu>
Reviewed-by: Keith Packard <keithp@keithp.com>
In function xf86VGAarbiterScrnInit when the "pEnt->bus.type" is
BUS_PLATFORM, the "pScrn->vgaDev" won't be set, so the "pScrn->vgaDev" is
equal to zero.
The variable "rsrc_decodes" in function "xf86VGAarbiterAllowDRI" is not
initialized. So it will occur error when "pScrn->vgaDev == 0", and
"vga_count > 1". For this case, as "pScrn->vgaDev == 0", the function
"pci_device_vgaarb_get_info" will only set the value of "vga_count",
but won't set the value of "rsrc_decodes", so it will has two different
return values for function "xf86VGAarbiterAllowDRI" in different
platforms. One platform will return TRUE, as the "rsrc_decodes" 's
default value is 0, but another platform will return FALSE, as the
"rsrc_decodes" 's default value is "32767", this will cause disable
direct rendering.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96937
Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Any code called from the driver ScreenInit may want to refer to
pScrn->pScreen. As the function passed to AddScreen is the first place
the DDX sees a new screen, the generic code needs to make sure that
value is set before passing control to the video driver's
initialization code.
This was found by running a driver which didn't bother to set this
value when the initial colormap was installed; xf86RandR12LoadPalette
tried to use pScrn->pScreen and crashed.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97124
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-and-Tested-by: Michel Dänzer <michel.daenzer@amd.com>
This is a problem for the libinput driver that uses the same context across
multiple devices. The driver may be halfway through setting up an input device
(and the only way to do so is to add it to libinput) when the input thread
comes in an reads events. This then causes mayhem when data is dereferenced
that hasn't been set up yet.
In my case the cause was the call to libinput_path_remove_device() inside
preinit racing with evdev_dispatch_device() handling of ENODEV. The sequence
was:
- thread 2 gets an event and calls evdev_dispatch_device()
- thread 1 calls libinput_path_remove_device() which sets the device->source
to NULL
- thread 2 reads from the fd, gets ENODEV and now removes the device->source,
dereferencing the null-pointer
This is the one I could reproduce the most, but there are other potential
pitfalls that affect any driver that uses the same fd for multiple devices.
Avoid all this and wrap PreInit into the lock.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
If a device couldn't be enabled we left the lock hanging.
This patch also removes the leftover OsReleaseSignals() call, now unnecessary.
Note that input_unlock() is later than previously OsReleaseSignals().
RemoveDevice() manipulates the input device and its file descriptors, it's
safer to put the input_unlock() call after RemoveDevice() to avoid events
coming in while the device is being removed.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Instead of breaking the former when the driver supports the latter,
hook them up so that the hardware LUTs reflect the combination of the
current colourmap and gamma states. I.e. combine the colourmap, the
global gamma value/ramp and the RandR 1.2 per-CRTC gamma ramps into one
combined LUT per CRTC.
Fixes e.g. gamma sliders not working in games.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=27222
v2:
* Initialize palette_size and palette struct members, fixes crash on
server startup.
v3:
* Free randrp->palette in xf86RandR12CloseScreen, fixes memory leak.
v4:
* Call CMapUnwrapScreen if xf86RandR12InitGamma fails (Emil Velikov).
* Still allow xf86HandleColormaps to be called with a NULL loadPalette
parameter in the xf86_crtc_supports_gamma case.
v5:
* Clean up inner loops in xf86RandR12CrtcComputeGamma (Keith Packard)
* Move palette update out of per-CRTC loop in xf86RandR12LoadPalette
(Keith Packard)
v6:
* Handle reallocarray failure in xf86RandR12LoadPalette (Keith Packard)
Reviewed-by: Keith Packard <keithp@keithp.com>
ATTR_KEY maps to ID_INPUT_KEY which is set for any device with keys.
ID_INPUT_KEYBOARD and thus ATTR_KEYBOARD is set for devices that are actual
keyboards (and have a set of expected keys).
Hand-written match rules may only apply ID_INPUT_KEYBOARD, so make sure we
match on that too.
Arguably we should've been matching on ATTR_KEYBOARD only all along but
changing that likely introduces regressions.
Reported-by: Marty Plummer <netz.kernel@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This removes the last uses of fd_set from the server interfaces
outside of the OS layer itself.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
With no users of the interface needing the readmask anymore, we can
remove it from the argument passed to these functions.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Remove code in xf86Wakeup for dealing with other input and switch to
using the new NotifyFd interface.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
The intent here was that fallback drivers would be at the end of the
list in order, but if a fallback driver happened to be at the end of the
list already that's not what would happen. Rather than open-code
something smarter, just use qsort.
Note that qsort puts things in ascending order, so somewhat backwardsly
fallbacks are greater than native drivers, and vesa is greater than
modesetting.
v2: Use strcmp to compare non-fallback drivers so we get a predictable
result if your libc's qsort isn't stable (Keith Packard)
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
As documented in xorg.conf(5), a value of ConstantDeceleration between 0
and 1 will speed up the pointer. However, values less than 1 actually
had no effect. Fix this.
Note that this bug only affected "ConstantDeceleration" as configured
through xorg.conf, not "Device Accel Constant Deceleration" as configured
through xinput. The property handler AccelSetDecelProperty() also did
not need to be changed, as it did not limit the values of the property.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=92766
Signed-off-by: Eric Biggers <ebiggers3@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
We want to notice that it's set, but still pass it through to dix.
Return 0 to indicate this.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
A new --with-fallback-input-driver=foo option allows selecting a
fallback driver for the server if the driver configured for the device
is not found. Note that this only applies when the device has a driver
assigned and that module fails to load, devices without a driver are
ignored as usual.
This avoids the situation where a configuration assigns e.g. the
synaptics driver but that driver is not available on the system,
resulting in a dead device. A fallback driver can at least provides some
functionality.
This becomes more important as we move towards making other driver true
leaf nodes that can be installed/uninstalled as requested. Specifically,
wacom and synaptics, a config that assigns either driver should be
viable even when the driver itself is not (yet) installed on the system.
It is up to the distributions to make sure that the fallback driver is
always installed. The fallback driver can be disabled with
--without-fallback-input-driver and is disabled by default on non-Linux
systems because we don't have generic drivers on those platforms.
Default driver on Linux is libinput, evdev is the only other serious
candidate here.
Sample log output:
[ 3274.421] (II) config/udev: Adding input device SynPS/2 Synaptics TouchPad (/dev/input/event4)
[ 3274.421] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "touchpad weird driver"
[ 3274.421] (II) LoadModule: "banana"
[ 3274.422] (WW) Warning, couldn't open module banana
[ 3274.422] (II) UnloadModule: "banana"
[ 3274.422] (II) Unloading banana
[ 3274.422] (EE) Failed to load module "banana" (module does not exist, 0)
[ 3274.422] (EE) No input driver matching `banana'
[ 3274.422] (II) Falling back to input driver `libinput'
.. server proceeds to assign libinput, init the device, world peace and rainbows
everywhere, truly what a sight. Shame about the banana though.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Not visible in the patch, but the same stanza is repeated below inside
the #ifdef GLXEXT. There's no reason to bother with checking it if we
built without GLXEXT so remove the unconditional one.
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
As the man page for the latter states:
The effects of signal() in a multithreaded process are unspecified.
We already have an interface to call sigaction() instead, use it.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Threaded input doesn't use SIGIO anymore, but existing drivers using
xf86BlockSIGIO and xf86ReleaseSIGIO probably want to lock the input
mutex during those operations. Provide inline functions to do this
which are marked as 'deprecated' so that drivers will get warnings
until they are changed.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Oops. This didn't get removed when xfree86 was converted over to use
the input thread.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
threaded input can affect drivers that use OsBlockSIGIO when dealing
with cursors.
Signed-off-by: Keith Packard <keithp@keithp.com>
Requested-by: Peter Hutterer <peter.hutterer@who-t.net>
Switch the XFree86 DDX over to threaded input
v2: Rewrite comment in xf86Helper about silken mouse
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
When this code was called from SIGIO, saving and restoring errno could
possibly have made sense in some strange environment. Now that this
will not be called from a signal handler, there is no reason to do that.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
This removes all of the SIGIO handling support used for input
throughout the X server, preparing the way for using threads for input
handling instead.
Places calling OsBlockSIGIO and OsReleaseSIGIO are marked with calls
to stub functions input_lock/input_unlock so that we don't lose this
information.
xfree86 SIGIO support is reworked to use internal versions of
OsBlockSIGIO and OsReleaseSIGIO.
v2: Don't change locking order (Peter Hutterer)
v3: Comment weird && FALSE in xf86Helper.c
Leave errno save/restore in xf86ReadInput
Squash with stub adding patch (Peter Hutterer)
v4: Leave UseSIGIO config parameter so that
existing config files don't break (Peter Hutterer)
v5: Split a couple of independent patch bits out
of kinput.c (Peter Hutterer)
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Not all display managers make it easy (or possible) to modify the
command line flags passed to the server, so add a way to get to it from
xorg.conf.
v2: Fix the FlagOptions list to not have IGLX after the terminator (Alan
Coopersmith)
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
The destination variable is never freed, thus we even plug some memory
leaks.
v2: Rebase against updated xf86CheckPrivs() helper.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Current message was quite off "file specified must be a relative path"
and alike. Just factor it out and use "path/file" as needed.
v2: Rework error message, drop "Using default", print actual arg value.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
The tablet pads have been separate kernel devices for a while now and
libwacom has labelled them with the udev ID_INPUT_TABLET_PAD for over a year
now. Add a new MatchIsTabletPad directive to apply configuration options
specifically to the Pad part of a tablet.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
-Wlogical-op now tells us:
devices.c:1685:23: warning: logical ‘and’ of equal expressions
Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
All consumers have been ported to the root window callback, so this can
all be nuked.
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
There are no longer any loadable font modules (not that they ever did
much in the first place), so stop pretending they're a defined ABI
surface.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Was removed from the tree in:
commit f175cf45ae
Author: Olivier Fourdan <ofourdan@redhat.com>
Date: Wed Feb 10 09:34:34 2016 +0100
vidmode: move to a separate library of its own
but not removed from the Makefile, which broke 'make dist'.
Signed-off-by: Adam Jackson <ajax@redhat.com>
This patch introduces a new flag ATTR_KEY for hotplugged input devices,
so we can better distinguish between real keyboards (i.e. devices with
udev property ID_INPUT_KEYBOARD="1") and other key input devices like
lid switches, power buttons, etc.
All supported hotplug backends (udev, hal, and wscons) will set both
flags ATTR_KEY and ATTR_KEYBOARD for real keyboards, but udev backend
will set ATTR_KEY, but not ATTR_KEYBOARD, for non-keyboard key input
devices (hal and wscons will set both flags in any case). With this
distinction, kdrive input hotplugging mechanism will be allowed to only
grab real keyboards, as other key input devices are currently not
supported.
In order to don't break current behaviour, this patch will replace all
ATTR_KEYBOARD occurrences with ATTR_KEY in hw/xfree86/common/xf86Xinput.c.
[ajax: Just add ATTR_KEY, don't re-number the other attributes]
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Laércio de Sousa <laerciosousa@sme-mogidascruzes.sp.gov.br>
The API signature of the DIX xf86VidModeGetGammaRampSize() is now
identical to the xf86cmap's xf86GetGammaRampSize() and all it does is
actually call xf86GetGammaRampSize() so we can save one vfunc.
Remove uneeded xf86VidModeGetGammaRampSize() function.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
The DIX already checks for VidModePrivateKey to get the vfunc, so
checking for this again in the DDX is redundant.
Remove the redundant function xf86VidModeAvailable() from the DDX.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
XVidMode extension might be useful to non hardware servers as well (e.g.
Xwayand) so that applications that rely on it (e.g. lot of older games)
can at least have read access to XVidMode.
But the implementation is very XFree86 centric, so the idea is to add
a bunch of vfunc that other non-XFree86 servers can hook up into to
provide a similar functionality.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=87806
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
To avoid confusion as to what belongs on the DDX and what not.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
To be able to reuse the VidMode extension in a non-hardware server, the
display mode definitions need to be accessible from DIX.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
The mode access functions (namely VidModeCreateMode(),
VidModeCopyMode(), VidModeGetModeValue() and VidModeSetModeValue()) are
used only in xf86VidMode code and do not need to be available anywhere
else.
Remove these functions from the public VidMode API and move them as
static where they are used.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
The API uses an untyped pointer (void *) where a DisplayModePtr is
expected.
Clean up the API to use the appropriate type, as DisplayModePtr is
really all that will be passed there.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
VidModeGetMonitor() is used solely in ProcXF86VidModeGetMonitor() to
get a untyped monitor pointer that is passed back straight again to
VidModeGetMonitorValue().
This is actually useless as VidModeGetMonitorValue() could as well get
the monitor from the ScreenPtr just like VidModeGetMonitor() does.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
New code passes ScreenPtr instead of the screen index.
Change the VidMode functions to take a ScreenPtr.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
As we rely on dixRegisterPrivateKey() to allocate the memory for us that
will be free automatically, we do not need the CloseScreen wrapper
anymore.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
