As the kernel does not send out an explicit DISCOVER event, we have to
reinspect every connector after every hotplug event to detect topology
changes.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
In order to provide persistent names for MST devices, which may change
topology dynamically, the kernel exports a PATH blob. We can then use
this path to generate the output name, and so reuse existing XID when a
monitor is plugged back in.
Based on the patch for -modesetting by Dave Airlie.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Fixes TearFre regression from
commit 3932e97057 [2.99.912]
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon Jun 9 08:58:15 2014 +0100
sna/dri2: Allow TearFree flipping to individual CRTC
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
sna_display.c: In function 'has_user_backlight_override':
sna_display.c:595:3: warning: return discards 'const' qualifier from pointer target type [enabled by default]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
After a flip fails, we try to update the CRTC manually to new fb.
However, the caller is still expecting to receive an event though the
drm device to notify when the flips are complete. In order to maintain
that ABI, we need to queue another flip after the fixup (to the
currently bound fb).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Some OS prefer to control the backlight themselves through another
daemon and so do not want X interfering.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
It could happen that we create front/back buffers with different
pitches. The kernel refuses to flip between such buffers, and so we will
hit some fallback paths that try to fix up the failed flips. Circumvent
such by avoiding the flip.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Apply the manual CRTC fixup in case pageflipping fails. This can happen
if the pitches between the front and back differ for example.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Baby step. We first take advantage of TearFree to allow us to redirect a
single CRTC to the DRI2 frontbuffer and so allow a fullscreen game
covering a single monitor to avoid expensive blits when running in a
multi-monitor setup.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
The libudev documentation says that is it non-blocking by default, but
experience shows otherwise.
Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Prevent the crash caused by
commit 444a1f7a8802999e27ecf5f6eb598df2206f7277
Author: Brendan King <brendan.king@imgtec.com>
Date: Thu Apr 24 11:37:45 2014 +0100
fb: fix screen pixmap leak on server reset
Call FreePixmap() instead of free() to destroy the screen pixmap in
fbCloseScreen().
Signed-off-by: Frank Binns <frank.binns@imgtec.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
As there may be some latency between the wakeup and the queue, do a
final check if there is a pending vblank event before we decide whether
to chain up or perform an immediate flip.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
As we may recurse into the vblank handler whilst waiting for the
TearFree shadow, we need to be careful that we do not queue the frame
from the vblank handler that we are in the process of constructing.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
As the Window may be resized between the client sending the swap request
and the xchg being processed, we need to validate the swap against the
final target not the buffers supplied originally by the client.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
fbcon doesn't adjust the backlight when it takes over. Therefore if X
performs a VT switch whilst its outputs are off, fbcon wakes up with no
backlight and users are unhappy. Make the assumption that whoever takes
over the VT will set the outputs as it desires, and that the failsafe
value is to then turn the backlight to full.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67025
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
The switch was moved after we checked whether pageflips are supported,
but the log message was left in the old location.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
In order to free up memory and improve our bookkeeping when the X server
is switched away from the current VT, disable the CRTC.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
The tearfree code forgot to update the shadow bo, so after the first
flip it would be rendering to the scanout anyway and flip to itself
periodically.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This was disabled in
commit 9f4f855ba3
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon May 26 07:06:18 2014 +0100
sna: Implicit release of upload buffers considered bad
as retiring the buffers during the command setup could free one of the
earlier bo used in the command. But discarding the snooped bo could
still be advantageous. So restore the automatic discard of upload
proxies, but make sure we only do between operations.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matti Hämäläinen <ccr@tnsp.org>
With a shadow, we may never attach a GPU bo to the frontbuffer, so be
careful when checking the scanout not to dereference that NULL pointer.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Fallout from commit 8369166349
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed Jun 4 08:29:51 2014 +0100
sna/dri2: Enable immediate buffer exchanges
We set the flush hint too early, as we may need to swap the GPU bo for a
more appropriate buffer for DRI.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Changes to the backlights are notified through uevents. Hooking up a
udev monitor to listen out for external changes to the backlight (e.g.
through ACPI function keys, or by the user writing to
/sys/class/backlight directly) is easier than enabling polling on the
backlight sysfs file using X's select() mechanism.
Since we listen to backlight changes, we have to be careful not to
confuse the side-effects of disabling connectors (which may cause either
ourselves or the kernel to turn off the backlight) with the user value.
Many thanks to Alexander Mezin for the suggestion to use udev for
tracking the notifications for external changes to the backlight.
Reported-by: Alexander Mezin <mezin.alexander@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79699
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
As we have reorder the application of damage on a TearFree frontbuffer
to before we attach the CRTC, we do not need to then schedule the update
afterwards (until it gets drawn by the client).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson