This converts the dispatch loop into using a list of ready clients
instead of an array. This changes the WaitForSomething API so that it
notifies DIX when a client becomes ready to read, instead of returning
the set of ready clients.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This provides a wrapper around poll or epoll providing a
callback-based interface for monitoring activity on a large set of
file descriptors.
v2: use xserver_poll API instead of poll. Don't use WSAPoll as
that is broken.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This uses the wrapper in case we need to emulate poll with select
as we do on Windows.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
v2: rename as 'xserver_poll' to avoid potential library name
collisions. Provide 'xserver_poll.h' which uses the system
poll where available and falls back to this emulation otherwise.
Autodetects when this is required, building the emulation only
then
Source: https://github.com/bmc/poll
Signed-off-by: Adam Jackson <ajax@redhat.com>
Update for removal of fdset from Block/Wakeup handler API in 9d15912a
Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
Reviewed-by: Keith Packard <keithp@keithp.com>
Update for removal of AddEnabledDevice in be5a513f. Use SetNotifyFd instead.
Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
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 error code can mean we're submitting more rects at once than the
driver can handle. If that happens, resubmit one at a time.
v2: Make the rect submit loop more error-proof (Walter Harms)
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Michael Thayer <michael.thayer@oracle.com>
The file descriptors passed to InputThreadFillPipe are always
blocking, so there's no need to use Select (or poll).
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This provides a way to report errors on file descriptors that is
better defined than "any bits which are not READ or WRITE".
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
The timeout resolution offered in the AdjustWaitForDelay call is
only milliseconds, so passing around the timeout as a pointer to a
struct timeval is not helpful. Doing everything in milliseconds up to
the point of the select call simplifies the code without affecting
functionality at all.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
The intermediate grabState, "GrabKickout", was used to trigger
dispatch into going back to WaitForSomething after doing a GrabServer
so that the set of ready clients would be recomputed to match what the
server should be processing. As we only process one client per
WaitForSomething call, we will always hit WaitForSomething after
finishing the current client, and so don't need any special case here.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Instead of having scheduling done in two places (one in
WaitForSomething, and the other in SmartScheduleClient), just stick
all of the scheduling in SmartScheduleClient.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
All uses of these interfaces should instead be using the NotifyFd API
instead.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
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>
Use SetNotifyFd instead, with the hope that someday someone will come
fix this to be more efficient -- right now, the wakeup handler is
doing the event reading, instead of the notify callback.
v2: no need to patch dmxsigio.c as it has been removed.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
This is a cleanup, proposed by Adam Jackson, but wasn't merged with
the original NotifyFD changes.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This is a cleanup, proposed by Adam Jackson, but wasn't merged with
the original NotifyFD changes.
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>
Instead of open-coding a single FD wait, use NotifyFd to wait for the
FD to become readable before returning the error message.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This new libXfont API eliminates exposing internal X server symbols to
the font library, replacing those with a struct full of the entire API
needed to use that library.
v2: Use libXfont2 instead of libXfont_2
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
It is a modest performance improvement (2.7% on Intel), with the
significant downside that it keeps extra pixmap contents laying around
for 1000 BlockHandlers without the ability for the system to purge
them when under memory pressure, and tiled renderers don't know that
we could avoid reading their current contents when beginning to render
again. We could use the FB invalidate functions, but they aren't
always available, aren't hooked up well in Mesa, and would eat into
the performance gains of having the cache.
[ajax: rebased to master]
Reviewed-by: Adam Jackson <ajax@redhat.com>
Fixes incorrect clipping for redirected windows which don't happen to be
located at the top left corner of the screen.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96742
Signed-off-by: Michel Dänzer <michel.daenzer@amd.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>
We currently censor images from dix's GetImage, but not from
ShmGetImage. This is a method to bypass XACE, creating a potential
leak. We should censor in both methods.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Andrew Eikum <aeikum@codeweavers.com>
Otherwise if the geometry changes but the mode doesn't we end up with
the previous geometry from RR's point of view.
Fixes https://bugzilla.gnome.org/show_bug.cgi?id=768710
Reviewed-by: Jonas Ådahl <jadahl@gmail.com>
Signed-off-by: Rui Matos <tiagomatos@gmail.com>
Some games incorrectly use non-premultiplied ARGB cursor data, presumably
because that's what Windows uses. On some hardware (and with SWcursor),
this breaks areas of the cursor which are supposed to be transparent
(and presumably also translucent areas, but that's less noticeable).
This change checks for pixels with alpha == 0 and any non-alpha component
!= 0. If any such pixel is found, the data is assumed to be
non-premultiplied and fixed up by multiplying the RGB components with the
alpha component.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92309
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
/dev/vc/0 is a devfs thing which is long dead, so stop trying to open
/dev/vc/0, besides being a (small) code cleanup this will also fix the
"parse_vt_settings: Cannot open /dev/tty0 (%s)\n" error message to
display the actual error, rather then the -ENOENT from also trying
/dev/vc/0.
BugLink: https://patchwork.freedesktop.org/patch/8768/
Reported-by: Chad Versace <chad.versace@linux.intel.com>
Suggested-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Reviewed-by: Chad Versace <chad.versace@intel.com>
Commit 80e64dae: "modesetting: Implement PRIME syncing as a sink" originally was
supposed to have this line, but it was dropped as part of the merge process.
Foregoing the NULL assignment causes a ton of problems with dereferencing
uninitialized memory.
Signed-off-by: Alex Goins <agoins@nvidia.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Adds an output parameter to disable PRIME synchronization.
Output parameter is created when the user calls 'xrandr
--setprovideroutputsource <sink> <source>' to prevent polluting output
parameters of non-PRIME configurations.
Defaults to on, so if the user wants PRIME synchronization they don't need
to do anything.
If the user wishes to disable PRIME synchronization when they first set up
PRIME, they can run 'xrandr --output <output> --set "PRIME Synchronization"
0' after running 'xrandr --setprovideroutputsource <sink> <source>', but
before 'xrandr --auto'.
If the user wishes to enable or disable PRIME synchronization after PRIME has
already been set up, they can run 'xrandr --output <output> --set "PRIME
Synchronization" <0 or 1>' at any time, xrandr will trigger a modeset, which
will tear down and setup PRIME in the configuration they requested on CRTCs
associated with that output.
randrstr.h:
Add central definition of the output property name.
rrcrtc.c:
Add function rrGetPixmapSharingSyncProp() to query the status of the
output property.
Add function rrSetPixmapSharingSyncProp() to set the output property.
Add 'sync' parameter to rrSetupPixmapSharing(), which when false will
use single buffering even if the required ABI functions are supported.
Changes rrSetupPixmapSharing() to only report an error if falling back
to single buffering when the user requested synchronization.
Change RRCrtcSet() to use rrPixmapSharingSyncProp() to query the status
of the output property and feed it into rrSetupPixmapSharing() using
the 'sync' parameter.
rrprovider.c:
Add RR(Init/Fini)PrimeSyncProps(), functions to create and destroy the
PRIME synchronization output property.
Add a call to RRInitPrimeSyncProps() in
ProcRRSetProviderOutputSource(), such that the output property is
created when the user requests PRIME.
Add a call to RRFiniPrimeSyncProps() in RRProviderDestroy().
v1: Initial commit
v2: Unchanged
v3: Add /* TODO */ for handling different sources with different outputs
Make rrSetupPixmapSharing() set the output property to 0 if it has to fall
back, to avoid user confusion.
Make rr(Get)PixmapSharingSyncProp() check the current value if there isn't a
pending value
v4: Unchanged
v5: Unchanged
v6: Rebase onto ToT
v7: Unchanged
Signed-off-by: Alex Goins <agoins@nvidia.com>
In newer laptops with switchable graphics, the GPU may have 0 outputs,
in this case the modesetting driver should still load if the GPU is
SourceOffload capable, so that it can be used as an offload source provider.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
When a card has import capability it can be an offload _sink_, not
a source and vice versa for export capability.
This commit fixes the modesetting driver to properly set these
capabilities, this went unnoticed sofar because most gpus have both
import and export capability.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Server GPUs often have a VNC feature attached to allow remote console.
The controller implementing this feature is usually not very powerful,
and we can easily swamp it with work. This is made somewhat worse by
damage over-reporting the size of the dirty region, and a whole lot
worse by applications (or shells) that update the screen with identical
pixel content as was already there.
Fix this by double-buffering the shadow fb, using memcmp to identify
dirty tiles on each update pass. Since both shadows are in host memory
the memcmp is cheap, and worth it given the win in network bandwidth.
The tile size is somewhat arbitrarily chosen to be one cacheline wide at
32bpp on Intel Core.
By default we enable this behaviour for (a subset of) known server GPUs;
the heuristic could use work.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
24bpp front buffers tend to be the least well tested path for client
rendering. On the qemu cirrus emulation, and on some Matrox G200 server
chips, the hardware can't do 32bpp at all. It's better to just allocate
a 32bpp shadow and downconvert in the upload hook than expose a funky
pixmap format to clients.
[ajax: Ported from RHEL and separate modesetting driver, lifted kbpp
into the drmmode struct, cleaned up commit message, fixed 16bpp]
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlied <airlied@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
[hdegoede@redhat.com: rebase, also use kbpp for rotate shadow fb]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
With the previous patch, the modesetting driver can now return whether
the driver supports hw cursor. However, it alone doesn't suffice,
unfortunately. drmmode_load_cursor_argb_check() is called in the
following chain:
xf86CursorSetCursor()
-> xf86SetCursor()
-> xf86DriverLoadCursorARGB()
-> xf86_load_cursor_argb()
-> xf86_crtc_load_cursor_argb()
-> drmmode_load_cursor_argb_check()
*but* at first with drmmode_crtc->cursor_up = FALSE. Then the
function doesn't actually set the cursor but returns TRUE
unconditionally. The actual call of drmmode_set_cursor() is done at
first via the show_cursor callback, and there is no check of sw cursor
fallback any longer at this place. Since it's called only once per
cursor setup, so the xserver still thinks as if the hw cursor is
supported.
This patch is an ad hoc fix to correct the behavior somehow: it does
call drmmode_set_cursor() at the very first time even if cursor_up is
FALSE, then quickly hides again. In that way, whether the hw cursor
is supported is evaluated in the right place at the right time.
Of course, it might be more elegant if we have a more proper mechanism
to fall back to sw cursor at any call path. But it'd need more
rework, so I leave this workaround as is for now.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
The modesetting driver still has an everlasting bug of invisible
cursor on cirrus and other KMS drivers where no hardware cursor is
supported. This patch is a part of an attempt to address it.
This patch particularly converts the current load_cursor_argb callback
of modesetting driver to load_cursor_argb_check so that it can return
whether the driver handles the hw cursor or falls back to the sw
cursor.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
[hdegoede@redhat.com: Add extra comment suggested by Kenneth]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
The error value isn't always -EINVAL, e.g. the kernel drm core returns
-ENXIO when the corresponding ops doesn't exist. Without this fix,
DRM_IOCTL_MODE_CURSOR2 would be dealt as success even if it
shouldn't.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Fixes weird link errors of the form:
CCLD Xvfb
../../Xext/.libs/libXext.a(xvmc.o): In function `xf86XvMCRegisterDRInfo':
/home/ajax/git/xserver/Xext/xvmc.c:828: undefined reference to `strlcpy'
/home/ajax/git/xserver/Xext/xvmc.c:829: undefined reference to `strlcpy'
../../os/os.O: In function `siHostnameAddrMatch':
/home/ajax/git/xserver/os/access.c:1821: undefined reference to `strlcpy'
../../os/os.O: In function `AuthAudit':
/home/ajax/git/xserver/os/connection.c:555: undefined reference to `strlcpy'
/home/ajax/git/xserver/os/connection.c:574: undefined reference to `strlcpy'
../../os/os.O:/home/ajax/git/xserver/os/log.c:972: more undefined references to `strlcpy' follow
collect2: error: ld returned 1 exit status
Makefile:688: recipe for target 'Xvfb' failed
make[3]: *** [Xvfb] Error 1
Makefile:749: recipe for target 'all-recursive' failed
make[2]: *** [all-recursive] Error 1
Makefile:608: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
Makefile:776: recipe for target 'all-recursive' failed
make: *** [all-recursive] Error 1
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Regression introduce by ac164e5887 which calls
XkbUpdateAllDeviceIndicators() with two NULL arguments. A few layers down into
the stack and we triggered a NULL-pointer dereference. In theory a NULL cause
is acceptable since we don't actually change modifier state here. Instead of
updating all places to check for NULL just set the cause to the client
request and go to the pub.
https://bugs.freedesktop.org/show_bug.cgi?id=96384
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Implements (Start/Stop)FlippingPixmapTracking, PresentSharedPixmap, and
RequestSharedPixmapNotifyDamage, the source functions for PRIME
synchronization and double buffering. Allows modesetting driver to be used
as a source with PRIME synchronization.
v1: N/A
v2: N/A
v3: N/A
v4: Initial commit
v5: Move disabling of reverse PRIME on sink to sink commit
v6: Rebase onto ToT
v7: Unchanged
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Goins <agoins@nvidia.com>
Reverse PRIME seems to be designed with discrete graphics as a sink in
mind, designed to do an extra copy from sysmem to vidmem to prevent a
discrete chip from needing to scan out from sysmem.
The criteria it used to detect this case is if we are a GPU screen and
Glamor accelerated. It's possible for i915 to fulfill these conditions,
despite the fact that the additional copy doesn't make sense for i915.
Normally, you could just set AccelMethod = none as an option for the device
and call it a day. However, when running with modesetting as both the sink
and the source, Glamor must be enabled.
Ideally, you would be able to set AccelMethod individually for devices
using the same driver, but there seems to be a bug in X option parsing that
makes all devices on a driver inherit the options from the first detected
device. Thus, glamor needs to be enabled for all or for none until that bug
(if it's even a bug) is fixed.
Nonetheless, it probably doesn't make sense to do the extra copy on i915
even if Glamor is enabled for the device, so this is more user friendly by
not requiring users to disable acceleration for i915.
v1: N/A
v2: N/A
v3: N/A
v4: Initial commit
v5: Unchanged
v6: Rebase onto ToT
v7: NULL check and free drmVersionPtr
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Goins <agoins@nvidia.com>
