Commit Graph

4509 Commits

Author SHA1 Message Date
Keith Packard 023d4aba8d xf86-video-modesetting: Create CONNECTOR_ID properties for outputs [v2]
This lets a DRM client map between X outputs and kernel connectors.

v2:
	Change CONNECTOR_ID to enum -- Adam Jackson <ajax@nwnk.net>

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@nwnk.net>
2018-02-27 12:38:48 -05:00
Keith Packard b91c787c4c xf86-video-modesetting: Record non-desktop kernel property at PreInit time
Save any value of the kernel non-desktop property in the xf86Output
structure to avoid non-desktop outputs in the default configuration.

[Also bump randrproto requirement to a version that defines
RR_PROPERTY_NON_DESKTOP - ajax]

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@nwnk.net>
2018-02-27 12:33:36 -05:00
Keith Packard fabbaa8d62 xfree86/modes: Check for non-desktop monitors during PreInit [v2]
At startup, we want to ignore non-desktop monitors unless we don't
find any desktop monitors. Because there are no DIX RandR resources
allocated, let the driver store this information in a new field in the
xf86Output structure and then use that value to help decide whether to
include an output as part of the default configuration.

v2:
  Suggested-by: Michel Dänzer <michel@daenzer.net>

  Bump XF86_CRTC_VERSION from 7 to 8. This will let out-of-tree
  drivers know whether this field is available.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@nwnk.net>
2018-02-27 12:03:55 -05:00
Mario Kleiner 80d4f4b6c2 modesetting: Enable screen color depth 30 support.
glamor now supports depth 30, so allow use of it.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Antoine Martin <antoine@nagafix.co.uk>
2018-02-27 10:18:07 -05:00
Mario Kleiner 7bc86c7d23 modesetting: Adapt xf86HandleColorMaps() for > 24 color depth. (v2)
This retains old behavior for depths <= 24, but allows gamma
table and colormap updates to work properly at depth 30.

This needs the xf86Randr12CrtcComputeGamma() fix for depth 30
from a previous commit to work. Otherwise the server will work,
but gamma table updates will silently fail, iow. the server
would always run with a default identity gamma lut.

v2: Simplify as proposed by Michel.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Antoine Martin <antoine@nagafix.co.uk> (v1)
2018-02-27 10:18:07 -05:00
Mario Kleiner b5f9fcd50a xfree86/modes: Adapt xf86Randr12CrtcComputeGamma() for depth 30. (v2)
At screen depths > 24 bit, the color palettes passed into
xf86Randr12CrtcComputeGamma() can have a larger number of slots
than the crtc's hardware lut. E.g., at depth 30, 1024 palette
slots vs. 256 hw lut slots. This palette size > crtc gamma size
case is not handled yet and leads to silent failure, so gamma
table updates do not happen.

Add a new subsampling path for this case.

This makes lut updates work again, as tested with the xgamma
utility (uses XF86VidMode extension) and some RandR based
gamma ramp animation.

v2: Better resampling when subsampling the palette, as
    proposed by Ville. Now reaches the max index of the
    palette and deals with non-power-of-two sizes. Thanks.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Antoine Martin <antoine@nagafix.co.uk> (v1)
Cc: <ville.syrjala@linux.intel.com>
2018-02-27 10:18:07 -05:00
Mario Kleiner 9ab5d91c6c glamor: Make Xv extension initialize at depth 30.
Support x-screens of depth 30, so init doesn't fail.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Antoine Martin <antoine@nagafix.co.uk>
2018-02-27 10:18:06 -05:00
Mario Kleiner efe9e3e9ff modesetting: Fix fallback for lack of new vblank kernel API.
Turns out that the kernel DRM ioctl handling returns EINVAL
instead of ENOTTY if one tries to call the new drmCrtcGetSequence()
or drmCrtcQueueSequence() ioctl's introduced in Linux 4.15 on an
older kernel where they are missing. This causes the fallback code
not to fall back to the old drmWaitVblank() ioctl and thereby
failure of vblank stuff.

E.g., on Linux 4.13, glxgears -info runs unthrottled at 10000 fps
instead of 60 fps. Also breakage of OML_sync_control extension.

Check for errno != EINVAL before setting has_queue_sequence = TRUE.

Additionally in case of supported drmCrtcQueueSequence(), set
has_queue_sequence = TRUE on success, or we might get at
least a temporary failure in ms_queue_vblank().

One slight ambiguity is that we can also get EINVAL if
drm_crtc_vblank_get() fails in the kernel, so if that
happened at first invocation of the new api, we'd fall
back to drmWaitVblank() and then fail there, instead of
failing in the new api, but the end result would be the
same.

Fixes: 44d5f2eb8a ("xf86-video-modesetting: Support new vblank kernel API [v2]")
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Cc: Keith Packard <keithp@keithp.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
2018-02-27 10:02:05 -05:00
Jeffrey Smith 9227237806 modesetting: Do not close uninitialized dri2 screen
If a dri2 screen is not successfully initialized, attempting to close it
results in a null dereference.

Maintain a flag indicating whether the dri2 screen was successfully
initialized, and check it before attempting to close the dri2 screen.

https://bugzilla.redhat.com/show_bug.cgi?id=1485811
https://bugzilla.redhat.com/show_bug.cgi?id=1493805
https://bugzilla.redhat.com/show_bug.cgi?id=1534459
https://bugzilla.redhat.com/show_bug.cgi?id=1541745
https://bugs.freedesktop.org/show_bug.cgi?id=101282

Signed-off-by: Jeff Smith <whydoubt@gmail.com>
2018-02-26 16:41:42 -05:00
Emil Velikov 9237c5e287 docs: correct LoadExtensionList() documentation
Add the missing arguments to the function signature.

Fixes: e46820fb89 ("miinitext: introduce LoadExtensionList() to replace
over LoadExtension()")

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2018-02-21 11:07:18 -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 67c303fff3 miinitext: Load GLX on the mi path
Add a stub for Xnest so it continues to link, but otherwise we support
GLX on every server so there's no need to make every DDX add it.

Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-02-14 17:04:48 -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 3e3b8a40fe modesetting: Check for -1 before converting to unsigned int.
dri2.c:516:21: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
    if (front->name < 0)

Prevents a failure from being ignored.
2018-02-02 15:19:32 -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
Jeff Smith 9b7b8720eb edid: use value returned from pruning duplicate modes
xf86PruneDuplicateModes is passed a linked list of modes, and after
pruning the duplicate nodes, the new head of the list is returned.  If
the first element is removed, the head of the list will change and the
returned value needs to be assigned.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103722
Thanks: John Lumby <johnlumby@hotmail.com>
Signed-off-by: Jeff Smith <whydoubt@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2018-01-29 14:38:12 -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
Rinat Ibragimov ac138f9b31 modesetting: setup colormap
Signed-off-by: Rinat Ibragimov <ibragimovrinat@mail.ru>
Reviewed-by: Michel Dänzer <michel.daenzer at amd.com>
2018-01-24 16:17:22 -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
Adam Jackson c2b2f06aa0 miinitext: General cleanup (v2)
This really just wants to be the list of disable booleans and
initialization functions, and nothing else. Stop including the protocol
headers from extinit.h, remove a stray mention of xgl, and move an
XInput declaration to a better place.

v2: A bunch of drivers assume they'll get the DPMS tokens implicitly,
so add it to globals.h.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2018-01-22 17:28:12 -05:00
Keith Packard 4d5aab66c0 xfree86: Disable cursor whenever turning off CRTC during modeset
This makes sure the CRTC's cursor is hidden before we hand the CRTC
over to some other application.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2018-01-22 17:22:21 -05:00
Keith Packard a12485ed84 xf86-video-modesetting: Update property values at detect and uevent time
We were updating the link-status property when a uevent came in, but
we also want to update the non-desktop property, and potentially
others as well. We also want to check at detect time in case we don't
get a hotplug event.

This patch updates every property provided by the kernel, sending
changes to DIX so it can track things as well.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2018-01-22 17:22:21 -05:00
Keith Packard 44d5f2eb8a xf86-video-modesetting: Support new vblank kernel API [v2]
drmCrtcGetSequence returns the current vblank sequence and time.

drmCrtcQueueSequence queues an event for delivery at a specified
vblank sequence.

Use these (when available) in preference to drmWaitVBlank.

v2: Remove FIRST_PIXEL_OUT_FLAG. This has been removed from the kernel
    API.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2018-01-22 17:22:21 -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 32b4262721 modesetting: Use seq instead of msc in ms_queue_vblank failure path
When the call to queue a vblank event fails, we need to clean up by
removing the user-space queue entry. That is indexed by the local
sequence number, not by the kernel vblank count. The call in this
case was just passing the wrong value.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2018-01-16 16:10:27 -05:00
Adam Jackson 15d91df474 x86emu: Teach the debug code about varargs
With -Wformat-nonliteral and a debug build you'd get yelled at here:

../hw/xfree86/x86emu/x86emu/debug.h:188:9: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]

To fix this, rewrite the printf code to actually use varargs and the
appropriate format attribute. All callers of DECODE_PRINTF() pass a
string with no % specifiers, so we pass that as the argument to
printf("%s"). For DECODE_PRINTF2() we just pass the args through.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2018-01-16 16:08:38 -05:00
Adam Jackson 4ed8d5c946 ddc: Port some paranoia from drm_edid.c
Avoid adding a "standard" mode timing if we've already got a matching
detailed timing. To help with that, parse CEA blocks for detailed
timings before doing standard or established timings.

Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-01-08 16:24:59 -05:00
Jon Turney da4ffb2f6a meson: Correct the option for disabled int10 from 'disabled' to 'false'
Fix meson_option.txt to align with the check of the int10 option against
'disabled', not 'false' in hw/xfree/meson.build, to see if it shouldn't be
built at all.

This keeps everything consistent that 'false' always turns things off.

Not noticed before as options weren't validated against choices until meson
0.43

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
2018-01-08 16:08:13 -05:00
Lukáš Krejčí f615cb62d4 Xorg.wrap: Ensure correct ordering of post-install hook
The install rule of Xorg.wrap is currently a dependency of the
install-data target instead of the install-exec target. The build also
uses install-exec-hook to change the ownership and set the SUID bit on
the Xorg.wrap binary. The problem is that install-exec-hook is only
ordered respective to the install-exec target, the rules of install-data
may or may not have been executed.

If install-exec-hook runs before the Xorg.wrap binary is in place,
a message similar to the following will be present in the build log:

chown: cannot access '/pkgdir/usr/lib/xorg-server/Xorg.wrap': No such file or directory
make[6]: [Makefile:1151: install-exec-hook] Error 1 (ignored)

All that needs to be done is to change the name of the program variable
to contain 'exec' for the install rule to depend on the install-exec
target.

Excerpt from the Automake manual, chapter 12.2 The Two Parts of Install:
"Any variable using a user-defined directory prefix with ‘exec’ in the
name (e.g., myexecbin_PROGRAMS) is installed by install-exec. All other
user-defined prefixes are installed by install-data."

https://bugs.freedesktop.org/show_bug.cgi?id=104419

Signed-off-by: Lukáš Krejčí <lskrejci@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2018-01-08 09:54:22 +10:00
Konstantin Kharlamov c720495305 modesetting: simplify bailing on calloc fail
The "done" label restores crtc-> {x,y,rotation,mode}, frees output_id.
Doing the calloc() before writing to those values frees us from
necessity to restore them if calloc fails, and allows to merge
"if (mode)" block.

Signed-off-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2017-12-18 08:52:55 +10:00
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 78b2ce1410 modesetting: Remove #if 0 CMAP_LOAD_EVEN_IF_OFFSCREEN
CMAP_LOAD_EVEN_IF_OFFSCREEN has been encapsulated since the import of
xf86-video-modesetting into the tree.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
2017-11-29 14:50:50 -05:00
Daniel Martin d563443381 modesetting: Remove unused define DRV_ERROR
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
2017-11-29 14:50:47 -05:00
Daniel Martin 6804875662 modesetting: Reset output_id if drmModeGetConnector failed
If drmModeGetConnector() fails in drmmode_output_detect(), we have to
reset the output_id to -1 too.

Yet another spot leading to a potential NULL dereference when handling
the mode_output member as output_id was != -1. Though, this case should
be very hard to hit.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
2017-11-29 14:50:44 -05:00
Daniel Martin e20b1016de modesetting: Fix log msg if pixmap creation failed
Add a missing new-line character and make the message more verbose than
"Failed".

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
2017-11-29 14:50:40 -05:00
Daniel Martin 02981fe1a8 xfree86: Fix set but not used warnings in lnx_platform
Those warnings are generated, when building without systemd support:

../hw/xfree86/os-support/linux/lnx_platform.c: In function ‘get_drm_info’:
../hw/xfree86/os-support/linux/lnx_platform.c:29:16: warning: variable ‘minor’ set but not used [-Wunused-but-set-variable]
     int major, minor, fd;
                ^~~~~
../hw/xfree86/os-support/linux/lnx_platform.c:29:9: warning: variable ‘major’ set but not used [-Wunused-but-set-variable]
     int major, minor, fd;
         ^~~~~

In this case the functions are macros, which don't use theese arguments.

v2: Add comments, why the warnings appear. Suggested by Emil Velikov

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
2017-11-29 14:50:12 -05:00
Hector Martin 68556d74b4 edid: fix off-by-one error in CEA mode numbering
The CEA extension short video descriptors contain the VIC, which starts
at 1, not 0.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Hector Martin <marcan@marcan.st>
2017-11-14 15:52:25 -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
Daniel Martin 04a305121f modesetting: Fix potential buffer overflow
If one misconfigures a ZaphodHeads value (more than 20 characters
without a delimiter), we get an overflow of our buffer.  Use
xstrtokenize() instead of writing/fixing our own tokenizer.

Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
2017-10-30 13:44:34 -04:00
Alex Goins 266d9868ca xf86-video-modesetting: Fix ms_queue_vblank(flags = MS_QUEUE_RELATIVE)
Change 677c32bc refactored all usages of drmWaitVBlank() into a helper function,
ms_queue_vblank().

ms_queue_vblank() takes in an MS_QUEUE_RELATIVE flag to indicate that the
sequence number is relative rather than absolute, but still treats the actual
sequence number as absolute, passing it through ms_crtc_msc_to_kernel_msc()
unconditionally before calling drmWaitVBlank().

ms_crtc_msc_to_kernel_msc() works by subtracting a vblank offset from the
provided sequence number, which only makes sense for absolute sequence numbers.
In the case of PRIME Sync, drmmode_SharedPixmapPrsentOnVBlank() passes in 1,
which results in a large negative vblank offset. After subtracting, we're left
with a relative sequence number of 100,000+, i.e. wait for 100,000+ vblanks...

In the relative case we want to pass in the sequence number unmodified. Simply
add a check to do this.

Signed-off-by: Alex Goins <agoins@nvidia.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
2017-10-27 10:00:47 -04:00
Alex Goins 68d95e759f ramdac: Check ScreenPriv != NULL in xf86ScreenSetCursor()
Similar to change cba5a10f, xf86ScreenSetCursor() would dereference ScreenPriv
without NULL checking it. If Option "SWCursor" is specified, ScreenPriv == NULL.

Without this fix, it is observed that setting Option "SWCursor" "on" on the
modesetting driver in a PRIME configuration will segfault the server.

It is important to return success rather than failure in the instance that
ScreenPriv == NULL and pCurs == NullCursor, because otherwise xf86SetCursor()
can fall into infinite recursion: xf86SetCursor(pCurs) calls
xf86ScreenSetCursor(pCurs), and if FALSE, calls xf86SetCursor(NullCursor). If
xf86ScreenSetCursor(NullCursor) returns FALSE, it calls
xf86SetCursor(NullCursor) again and this repeats forever.

Signed-off-by: Alex Goins <agoins@nvidia.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
2017-10-25 09:52:44 -04:00
Daniel Martin f44935cdb7 modesetting: Use helper to fetch drmModeProperty(Blob)s
Replace the various loops to lookup drmModeProperty(Blob)s by
introducing helper functions.

Signed-off-by: Daniel Martin <consume.noise@gmail.com>
2017-10-23 11:40:31 -04:00