Commit Graph

8093 Commits

Author SHA1 Message Date
Jon Turney
adebc376b9 hw/xwin: Push multiwindow wndproc WM_PAINT down into drawing engine
Push the multiwindow wndproc WM_PAINT handling down into the drawing
engine.  Only the GDI engine is supported in multiwindow mode currently,
so we only need to do this in the GDI engine.
2019-06-17 21:56:35 +00:00
Jon Turney
065f73353b hw/xwin: Align winBltExposedRegionsShadowGDI with winTopLevelWindowProc's WM_PAINT
Make winBltExposedRegionsShadowGDI() do the same stuff that
winTopLevelWindowProc()'s WM_PAINT handler does.

Note that winBltExposedRegionsShadowGDI() is currently used 1) in
windowed mode when the GDI engine is selected, and 2) in multiwindow
mode when "Hide Root Window" is off.
2019-06-17 21:56:35 +00:00
Carlos Garnacho
dea4a74621 xwayland: Reset scheduled frames after hiding tablet cursor
Hiding the tablet tool cursor results in it being hidden forever after.
This is due to the stale frame callback that will neither be disposed
or replaced. This can be reproduced in krita (X11) as the pointer
cursor is hidden while over the canvas.

Clearing the frame callback ensures the correct behavior in future
xwl_tablet_tool_set_cursor() calls (i.e. a new cursor surface being
displayed, and a new frame callback created), and is 1:1
with xwl_seat_set_cursor() for pointers.

Signed-off-by: Carlos Garnacho <carlosg@gnome.org>
2019-06-06 09:37:18 +00:00
Olivier Fourdan
48f4ab7509 xwayland: check glamor_set_pixmap_texture() status
With `glamor_set_pixmap_texture()` returning its status, remove the hack
and use the return value.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
2019-05-28 14:31:38 -04:00
Olivier Fourdan
fc6380a11b xwayland: Check status in GBM pixmap creation
The current code in `xwl_glamor_gbm_create_pixmap_for_bo()` may fail in
several cases that are not checked for:

 - `eglCreateImageKHR()` may have failed to create the image,
 - `glEGLImageTargetTexture2DOES()` may fail and set an error,
 - `glamor_set_pixmap_texture()` may fail for very large pixmaps
    because the corresponding FBO could not be created.

Trying to upload content to a pixmap with no texture will crash Mesa,
glamor and Xwayland, e.g.:

  XXX fail to create fbo.
  (EE)
  (EE) Backtrace:
  (EE) 0: Xwayland (OsSigHandler+0x29)
  (EE) 1: libpthread.so.0 (funlockfile+0x50)
  (EE) 2: libc.so.6 (__memmove_avx_unaligned_erms+0x215)
  (EE) 3: dri/i965_dri.so (_mesa_format_convert+0xab3)
  (EE) 4: dri/i965_dri.so (_mesa_texstore+0x205)
  (EE) 5: dri/i965_dri.so (store_texsubimage+0x28c)
  (EE) 6: dri/i965_dri.so (intel_upload_tex+0x13b)
  (EE) 7: dri/i965_dri.so (texture_sub_image+0x134)
  (EE) 8: dri/i965_dri.so (texsubimage_err+0x150)
  (EE) 9: dri/i965_dri.so (_mesa_TexSubImage2D+0x48)
  (EE) 10: Xwayland (glamor_upload_boxes+0x246)
  (EE) 11: Xwayland (glamor_copy+0x4d1)
  (EE) 12: Xwayland (miCopyRegion+0x96)
  (EE) 13: Xwayland (miDoCopy+0x43c)
  (EE) 14: Xwayland (glamor_copy_area+0x24)
  (EE) 15: Xwayland (damageCopyArea+0xba)
  (EE) 16: Xwayland (compCopyWindow+0x31c)
  (EE) 17: Xwayland (damageCopyWindow+0xd3)
  (EE) 18: Xwayland (miResizeWindow+0x7b7)
  (EE) 19: Xwayland (compResizeWindow+0x3a)
  (EE) 20: Xwayland (ConfigureWindow+0xa96)
  (EE) 21: Xwayland (ProcConfigureWindow+0x7d)
  (EE) 22: Xwayland (Dispatch+0x320)
  (EE) 23: Xwayland (dix_main+0x366)
  (EE) 24: libc.so.6 (__libc_start_main+0xf3)
  (EE) 25: Xwayland (_start+0x2e)
  (EE)
  Fatal server error:
  (EE) Caught signal 11 (Segmentation fault). Server aborting
  (EE)

Check for the possible cases of failure above and fallback to the
regular glamor pixmap creation when an error is detected.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Closes: https://gitlab.freedesktop.org/xorg/xserver/issues/661
2019-05-28 14:31:38 -04:00
Adam Jackson
8469241592 xwayland: Add EGL-backed GLX provider
Without this we're using driswrast to set up GLX visuals. This is
unfortunate because llvmpipe does not expose multisample configs, so
various apps that expect them will fail. With this we just query the
capabilities of the EGL that's backing glamor, and reflect that to the
GLX clients. This also paves the way for xserver to stop being a DRI
driver loader, which is nice.

Fixes: xorg/xserver#640
Fixes: xorg/xserver#643
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=98272
Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2019-05-23 12:39:39 -04:00
Olivier Fourdan
0a07446318 xwayland: Avoid a crash on pointer enter with a grab
On pointer enter notification, Xwayland checks for an existing pointer
warp with a `NULL` sprite.

In turn, `xwl_pointer_warp_emulator_maybe_lock()` checks for an existing
grab and the destination window using `XYToWindow()` which does not
check for the actual sprite not being `NULL`.

So, in some cases, when the pointer enters the surface and there is an
existing X11 grab which is not an ownerEvents grab, Xwayland would crash
trying to dereference the `NULL` sprite pointer:

  #0  __GI_raise ()
  #1  __GI_abort () at abort.c:79
  #2  OsAbort () at utils.c:1351
  #3  AbortServer () at log.c:879
  #4  FatalError () at log.c:1017
  #5  OsSigHandler () at osinit.c:156
  #6  OsSigHandler () at osinit.c:110
  #7  <signal handler called>
  #8  XYToWindow (pSprite=0x0, x=0, y=0) at events.c:2880
  #9  xwl_pointer_warp_emulator_maybe_lock () at xwayland-input.c:2673
  #10 pointer_handle_enter () at xwayland-input.c:434

Avoid the crash by simply checking for the sprite being not `NULL` in
`xwl_pointer_warp_emulator_maybe_lock()`

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Bugzilla: https://bugzilla.redhat.com/1708119
2019-05-20 07:05:37 +00:00
brian
a0f738a673 Fixed ioperm calls in hwEnableIO 2019-05-12 19:50:06 +00:00
Adam Richter
9d25408a59 assert(a && b) --> assert(a); assert(b)
Separate each statement of the form "assert(a && b);" into "assert(a);"
and "assert(b);" for more precise diagnostics, except for this clever
use in drmmode_display.c where it was used to pass a hint to developers:

	assert(num_infos <= 32 && "update return type");
2019-05-02 15:02:36 -07:00
Jon Turney
655b1eb32e meson: Convert xquartz from autotools
Differences from autotools:

* Autotools defined NO_ALLOCA for OSX builds.  I don't think we need
this anymore as Xalloc.h is no longer used anywhere in the xserver.

* X11.bin is linked with -u,miDCInitialize, and then libserver_mi
provided to satisfy (just) that.  It's been that way since the commit
which added it.  We can't write the equivalent in meson due to linker
argument ordering issues, but do we really need to?

* An explicit -Dsecure-rpc=false is required for OSX, since in meson we
don't do the checks that XTRANS_SECURE_RPC_FLAGS did for the existence
of the specific RPC functions required.
2019-05-02 15:42:58 +00:00
Jon Turney
e5f4c7c80b xquartz: Fix a typo in man page substitution
The typo fixed in d69460159 was still present for this setting when
added in ac439842.

meson warns that there is no substitution with this name.
2019-05-02 15:42:58 +00:00
Jon Turney
b4ed20c4f1 Promote file containing date & time build was configured to top-level
Promote the generated file containing the date & time build was
configured to top-level.

Rename it from xf86Build.h to buildDateTIme.h.

Use it as well in XQuartz, stringize BUILD_DATE when needed.
2019-05-02 15:42:58 +00:00
Adam Richter
71cff63c06 hw/dmx/glxProxy/glxcmds.c CreateContext(): free glxc->real_ids and glxc in a couple of error branches, per complaints from cppcheck. 2019-05-01 15:22:15 -07:00
Adam Richter
b6eb8cf03f hw/xfree86/os-support/linux/lnx_agp.c xf86GetAGPInfo(): free(info) in an error path, caught by cppcheck. 2019-05-01 15:22:02 -07:00
Adam Richter
99904a3a7b hw/xwin/glx/indirect.c glxWinScreenProbe(): Add free(screen) that was missing from an error path. Caught by cppcheck. 2019-05-01 15:21:48 -07:00
Jon Turney
a2302de6fe hw/xwin: Remove mwextwm mode
This has always been described as 'experimental'

We don't think this has any users: This mode has been disabled in Cygwin
packages since March 2016. We've never provided the xwinwm WM for x86_64
Cygwin. No one has even asked where the option has gone.

This leaves XQuartz as the only user of the rootless extension.

Remove --enable-windowswm configure option
Remove multiwindowextwm stuff from Makefiles
Remove -mwextwm option
Remove -mwextwm from man-page and help
Un-ifdef XWIN_MULTIWINDOWEXTWM

v2:
Remove rootless include paths
Remove windowswmproto from meson.build
2019-05-01 14:06:15 +00:00
Jon Turney
92a52611f6 meson: Link with ws2_32 for socket functions on Windows 2019-04-30 20:07:51 +00:00
Jon Turney
93a1cdcc78 meson: Fix hw/xwin for -Dglx=false
hw/xwin/meson.build:140:0: ERROR:  Unknown variable "xwin_windowsdri".
hw/xwin/meson.build:141:0: ERROR:  Unknown variable "xwin_glx".
2019-04-30 20:07:51 +00:00
Jon Turney
f013979507 xquartz: Add stub ddxInputThread()
Omitted from 4ad21c32
2019-04-28 22:38:51 +00:00
Fabrice Fontaine
836f93de99 hw/xwayland/Makefile.am: fix build without glx
Commit d8ec33fe05 added libglxvnd.la to
Xwayland_LDFLAGS but GLX can be disabled through --disable-glx.
In this case, build fails on:

make[3]: *** No rule to make target '../../glx/libglxvnd.la', needed by 'Xwayland'.  Stop.
make[3]: *** Waiting for unfinished jobs....

Fixes:
 - http://autobuild.buildroot.org/results/397f8098c57fc6c88aa12dc8d35ebb1b933d52ef

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
2019-04-23 22:17:41 +00:00
Diego Viola
0854732d55 ephyr: fix typo: rquires -> requires
Signed-off-by: Diego Viola <diego.viola@gmail.com>
2019-04-19 22:13:46 -03:00
Jon Turney
2764128e9f Fix missing prototype warning for xf86_find_platform_device_by_devnum()
../hw/kdrive/src/kdrive.c:999:1: warning: no previous prototype for ‘xf86_find_platform_device_by_devnum’ [-Wmissing-prototypes]

Place the same guards around this stub as are around including the
hotplug.h header which declares the prototype.
2019-04-17 13:57:38 +01:00
Jon Turney
ba59427aba Fix maybe-uninitialized warning in xf86NewInputDevice()
If SYSTEMD_LOGIND is not defined, systemd_logind_take_fd is defined as a
macro evaluating to -1 by systemd-logind.h, leaving paused
uninitialized.

../hw/xfree86/common/xf86Xinput.c: In function ‘xf86NewInputDevice’:
../hw/xfree86/common/xf86Xinput.c:919:16: warning: ‘paused’ may be used uninitialized in this function [-Wmaybe-uninitialized]
../hw/xfree86/common/xf86Xinput.c:877:10: note: ‘paused’ was declared here
2019-04-17 13:57:38 +01:00
Jon Turney
7c266cafed Fix old-style definition warning for xf86OSInputThreadInit()
../hw/xfree86/os-support/stub/stub_init.c: In function ‘xf86OSInputThreadInit’:
../hw/xfree86/os-support/stub/stub_init.c:29:1: warning: old-style function definition [-Wold-style-definition]
2019-04-17 13:57:20 +01:00
Aaron Plattner
147ed28bbf xfree86: Export xf86GPUScreens and xf86NumGPUScreens
Drivers may need to loop over the allocated screens during PreInit, for example
to consolidate xorg.conf options that apply to a GPU device as a whole.
Currently, this works for protocol screens becuase x86Screens is exported, but
does not work for GPU screens.

Export xf86GPUScreens and xf86NumGPUScreens for consistency with xf86Screens and
xf86NumScreens.

Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
2019-04-12 21:45:19 +00:00
Dave Airlie
8ab80fd505 xf86: set status to connected for monitors enabled in conf
If the user sets Option "Enable" "TRUE" for a monitor, the X
server will connect the connector a crtc but tell the user it
is disconnected.

However the user in this case is mutter, when it gets it's view
of the output configuration it sees the output is disconnected
and never sets it up again, which seems like the right thing to do.

If we let the user enable a monitor, lets just set it as always
connected.

Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2019-04-02 19:20:07 +00:00
Eric Anholt
164a37eac2 simple-xinit: Introduce an escaped "--" argument.
For testing xephyr-glamor on top of Xvfb in CI better, I want to be
able to make one command line describing the nested server invocation,
but that means I need to get two simple-xinits to split client/server
on different "--" arguments.

Signed-off-by: Eric Anholt <eric@anholt.net>
2019-03-27 09:50:19 -07:00
Michael Biebl
5a549c957a Revert "systemd-logind: Monitor systemd-logind going away"
systemd-logind since version 234 (released 2017-07-12) supports being
restarted without losing state [1]. From the systemd NEWS file [2]:

 * systemd-logind may now be restarted without losing state. It stores
   the file descriptors for devices it manages in the system manager
   using the FDSTORE= mechanism. Please note that further changes in
   other components may be required to make use of this (for example
   Xorg has code to listen for stops of systemd-logind and terminate
   itself when logind is stopped or restarted, in order to avoid using
   stale file descriptors for graphical devices, which is now
   counterproductive and must be reverted in order for restarts of
   systemd-logind to be safe. See
   https://cgit.freedesktop.org/xorg/xserver/commit/?id=dc48bd653c7e101.)

This reverts commit dc48bd653c.

Closes: #531

[1] https://github.com/systemd/systemd/pull/5600
[2] 9f09a95a7e
2019-03-21 00:09:22 +01:00
Jon Turney
c020769dbf
Add xf86OSInputThreadInit to stub os-support as well
stub os support also needs to provide xf86OSInputThreadInit, omitted in
ea1527a8
2019-03-13 16:07:36 +00:00
Michel Dänzer
2e18eec6f0 xwayland/present: Destroy sync_callback in xwl_present_cleanup
xwl_present_cleanup frees the struct xwl_present_window memory,
so if there's a pending callback, we have to destroy it to prevent
use-after-free in xwl_present_sync_callback.

Should fix issue #645.

Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
2019-03-13 10:36:11 +01:00
Andy Ritger
e51ebc18a7 xfree86/modes: Add "NoOutputInitialSize" option
Normally, the X server infers the initial screen size based on any
connected outputs.  However, if no outputs are connected, the X server
picks a default screen size of 1024 x 768.  This option overrides the
default screen size to use when no outputs are connected.  In contrast
to the "Virtual" Display SubSection entry, which applies unconditionally,
"NoOutputInitialSize" is only used if no outputs are detected when the
X server starts.

Parse this option in the new exported helper function
xf86AssignNoOutputInitialSize(), so that other XFree86 loadable drivers
can use it, even if they don't use xf86InitialConfiguration().

Signed-off-by: Andy Ritger <aritger@nvidia.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
2019-03-06 11:33:29 -05:00
Alan Coopersmith
12769c516d os-support/solaris: Set IOPL for input thread too
Since the Solaris kernel tracks IOPL per thread, and doesn't inherit
raised IOPL levels when creating a new thread, we need to turn it on
in the input thread for input drivers like vmmouse that need register
access to work correctly.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2019-02-25 15:48:03 +00:00
Alan Coopersmith
ea1527a8a6 Add xf86OSInputThreadInit call from common layer into os-support layer
Allows os backends to run additional code as necessary to set up the
input thread.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2019-02-25 15:48:03 +00:00
Alan Coopersmith
4ad21c3247 Add ddxInputThread call from os layer into ddx layer
Allows ddx's to run additional code as necessary to set up the
input thread.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2019-02-25 15:48:03 +00:00
Alan Coopersmith
7533fa9bd5 os-support/solaris: Drop ExtendedEnabled global variable
Keeping track of kernel state in user space doesn't buy us anything,
and introduces bugs, as we were keeping global state but the Solaris
kernel tracks IOPL per thread.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2019-02-25 15:48:03 +00:00
Michel Dänzer
f9bbc9d5ea glx,xquartz: Fix make distcheck
Guard BUILT_SOURCES and CLEANFILES by XWIN_GLX_WINDOWS/XQUARTZ.
2019-02-22 10:21:27 +01:00
Adam Jackson
8f8d358bad ramdac: Remove core ramdac code
Now that there are no ramdac drivers this can go.

Signed-off-by: Adam Jackson <ajax@redhat.com>
2019-01-30 21:08:48 +00:00
Adam Jackson
f0385fb420 ramdac: Remove ramdac drivers
External RAMDACs are a very 1996 kind of thing, this code really doesn't
belong in the server.

Signed-off-by: Adam Jackson <ajax@redhat.com>
2019-01-30 21:08:48 +00:00
Adam Jackson
ff56048855 dri2: Stop pretending VGA arbitration matters
The VGA arbiter controls the PCI bus' routing of legacy VGA resources,
specifically the video memory aperture at 0xa0000-0xb0000 (640k should
be etc.) and a handful of I/O ports. Since 128k is far too small for a
real framebuffer these days, every driver instead maps a linear version
of VRAM through the PCI BAR. And no DRI2 drivers ever need I/O port
access, because all operations they might be used for (legacy VGA CRTC
setup, mostly) happen on the kernel side.

In other words, this just works, and we can stop breaking it.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
2019-01-30 14:08:41 -05:00
A. Wilcox
d3a26bbf61
DRI2: Add another Coffeelake PCI ID
A user of Adélie Linux reported that modesetting wasn't working properly on
their Intel i7-9700K-integrated UHD 630 GPU.  Xorg.0.log showed:

[   131.902] (EE) modeset(0): [DRI2] No driver mapping found for PCI device 0x8086 / 0x3e98
[   131.902] (EE) modeset(0): Failed to initialize the DRI2 extension.

Indeed, that PCI ID is missing from i965_pci_ids.  Adding it fixed the issue
and allowed the system to work with i965_dri under modesetting.
2019-01-26 15:37:56 -06:00
Adam Jackson
6c1d720047 agp: Make the legacy AGP interface optional
The only thing using this anymore is the i810 driver, so this can safely
be disabled on non-i686 builds.

Signed-off-by: Adam Jackson <ajax@redhat.com>
2019-01-16 19:50:15 +00:00
Adam Jackson
1e3f9ea14c randr: Remove funky indirection around the xf86 screen private key
All of the null checks here are redundant, you can't get to those paths
unless RANDR's already been initialized. Delete them, and remove the
pointer too.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
2019-01-11 18:14:34 +00:00
Michel Dänzer
30044b2253 xfree86/modes: Don't clobber gamma LUT of compatibility output's CRTC
If the driver calls xf86HandleColormaps, CMapChangeGamma updates the HW
gamma LUT of all CRTCs via xf86RandR12LoadPalette. However,
xf86RandR12ChangeGamma was then clobbering the gamma LUT of the RandR
1.2 compatibility output's CRTC with the gamma curves computed from the
screen's global gamma values.

Fix this by bailing if xf86RandR12LoadPalette is installed.

Fixes: 02ff0a5d7e "xf86RandR12: Fix XF86VidModeSetGamma triggering a
                     BadImplementation error"
2019-01-11 16:25:42 +00:00
Maya Rashish
e3fb178617 xfree86: Try nouveau on NetBSD as well. 2019-01-10 21:24:49 +00:00
Olivier Fourdan
e8295c5020 xwayland: handle case without any crtc
Xwayland creates and destroys the CRTC along with the Wayland outputs,
so there is possibly a case where the number of CRTC drops to 0.

However, `xwl_present_get_crtc()` always return `crtcs[0]` which is
invalid when `numCrtcs` is 0.

That leads to crash if a client queries the Present capabilities when
there is no CRTC, the backtrace looks like:

  #0  raise() from libc.so
  #1  abort() from libc.so
  #2  OsAbort() at utils.c:1350
  #3  AbortServer() at log.c:879
  #4  FatalError() at log.c:1017
  #5  OsSigHandler() at osinit.c:156
  #6  OsSigHandler() at osinit.c:110
  #7  <signal handler called>
  #8  main_arena() from libc.so
  #9  proc_present_query_capabilities() at present_request.c:236
  #10 Dispatch() at dispatch.c:478
  #11 dix_main() at main.c:276

To avoid returning an invalid pointer (`crtcs[0]`) in that case, simply
check for `numCrtcs` being 0 and return `NULL` in that case.

Thanks to Michel Dänzer <michel.daenzer@amd.com> for pointing this as a
possible cause of the crash.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Bugzilla: https://bugzilla.redhat.com/1609181
2019-01-09 14:08:04 +01:00
Roman Gilg
bf5613f888 xwayland: Fix wm_fd readin with no listen_fds
Since 08843efc KWin was not able to start a Wayland session. Independently
of listen_fd_count add_client_fd must be called. Same holds for the
wm_selection_callback. Therefore just remove the condition.

Bugzilla: https://bugs.freedesktop.org/109220

Signed-off-by: Roman Gilg <subdiff@gmail.com>
2019-01-07 16:14:03 +01:00
Ilia Mirkin
48b1af2718 modesetting: fix conn_id termination and potential overrun by 1 byte
Noticed when porting this logic to xf86-video-nouveau, and valgrind
complained about conditional jump based on uninitialized data.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2018-12-11 13:34:56 -05:00
Adam Jackson
899d260701 ci: Work around broken python UTF8 handling in the CI docker image
Gitlab very kindly exposes the details of the git commit message (among
much else) in the environment. Unfortunately, piglit tries to handle the
environment in non-UTF8-safe ways, which means if the top-of-tree commit
mentions non-ASCII characters (say, in the author's name) then all the
tests fail and so does the pipeline.

Fortunately none of those variables are things our piglit invocation
needs. Since I've failed to rebuild the docker image as yet, just clear
the likely variables from the environment before running piglit.

This-makes-me: ☹
2018-12-11 12:41:26 -05:00
Lyude Paul
7a44e8d400 modesetting: Actually disable CRTCs in legacy mode
Believe it or not, somehow we've never done this in legacy mode! We
currently simply change the DPMS property on the CRTC's output's
respective DRM connector, but this means that we're just setting the
CRTC as inactive-not disabled. From the perspective of the kernel, this
means that any shared resources used by the CRTC are still in use.

This can cause problems for drivers that are not yet fully atomic,
despite using the atomic helpers internally. For instance: if CRTC-1 and
CRTC-2 are still enabled and use shared resources within the kernel (an
MST topology, for example), and then userspace tries to go enable CRTC-3
on the same topology this might suddenly fail if CRTC-3 needs the shared
resources CRTC-1 and CRTC-2 are using. While I don't know of any
situations in the mainline kernel that actually trigger this, future
plans for reworking the atomic check of MST drivers are absolutely
going to make this into a real issue (they already are in my WIP
branches for the kernel).

So: actually do the right thing here and disable CRTCs when they're not
going to be used anymore, even in legacy mode.

Signed-off-by: Lyude Paul <lyude@redhat.com>
2018-11-29 16:21:26 +00:00
Michel Dänzer
e6cd1c9bde xwayland: Don't take buffer release queue into account for frame timer
The buffer release queue has two kinds of entries:

* Pending async flips.
* Completed flips waiting for their buffer to be released by the Wayland
  compositor.

xwl_present_timer_callback neither completes async flips nor releases
buffers, so the timer isn't needed for the buffer release queue.
2018-11-19 20:57:15 +00:00