Default indication period (13-17ms) from the driver to OS
increases total CPU consumption during presentation operations.
Reducing indication frequency to 200 ms reduces cost of this
feature. Till now we do not see any negative impact of this.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Registry override of default behavior (disabling when enabled
by default) provided for support and troubleshooting only in case
this feature affects specific user.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
In release build this does not affect the code.
In debug build we will have a warning printout when waiting
on event is close to 2 seconds - this can be a cause of following
stop by OS. The printout contains name of related event variable.
There is one event (in offload thread) that long wait on it
does not affect any functionality, for it this warning is disabled.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
In release build this class resolved to empty statements.
In debug build it is useful for measurement of execution time.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Instead of sending drawable commands down from presentation
callback, collect drawables objects and pass them to dedicated
thread for processing. This reduce peak load of presentation
callback.
Signed-off-by: Javier Celaya <javier.celaya@flexvdi.com>
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Create rendering thread upon device start and terminate it upon
stop. The dedicated thread is normally pending for display commands
to be sent to the host. Currently only single NULL (termination)
command is placed to the ring where the thread consumes events from.
Signed-off-by: Javier Celaya <javier.celaya@flexvdi.com>
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Prepare all the procedures needed for VSync feature but
do not turn it on yet. Manual uncomment still required to
enable it.
Advanced users may enable VSync feature and report functional
problem with it. The driver is expected to pass all the formal
tests under HLK 1607 with device rev.3 and rev.4 but with
device rev.4 on setups with high load or long round-trip delay
video system may detect timeout during rendering operation
and disable the driver with error 43.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
In case the driver supports VSync control feature, it
maintains timer for VSync interrupt indication.
In further commits this timer will be started upon
class driver request. The interrupt notification and
related DPC do not access device registers.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Do not clear interrupt mask upon interrupt.
Instead clear pending interrupt status and write
QXL_IO_UPDATE_IRQ register (this drops interrupt level).
There are 3 advantages:
1. We do not need to wake the host to enable interrupt
mask in DPC procedure (1 wake per interrupt instead of 2)
2. The driver is not sensitive to failure when queues DPC, as
already queued DPC will process this interrupt when executed.
3. When we implement VSync interrupt simulation, we do not
need to touch registers neither when notify the OS nor when
process DPC related to this notification.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
When the video mode is changed and then the driver disabled and
enabled, it did not enumerate available video modes with lower
resolution than current one. All modes starting from 1024x768
should be available regardless what is current resolution
on driver startup
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Concentrate filling of signal info in single procedure.
Fill signal info with specific or default frequency data
according to the global flag of VSync support.
Note that the state of this flobal flag must be defined only
on driver startup (based on OS version or any other information
available at DriverEntry) and can't be changed later.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Solves failure of HLK "Test for EDID requirements"
EDID contains capabilities and manufacturer data of
the emulated display device. Parsed EDID data presented
in the source file.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1417448
When the OS does not provide physical address of the frame buffer,
the driver retrieves it from allocated PCI resource for BAR0.
https://msdn.microsoft.com/en-us/library/hh451339(v=vs.85).aspx
In DxgkCbAcquirePostDisplayOwnership OS not always fills
the DXGK_DISPLAY_INFORMATION structure with valid data.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
The driver uses fallback mode when it does not receive
startup display information from the OS. This change
allows solution for https://bugzilla.redhat.com/show_bug.cgi?id=1417448
without fix in qemu for video mode switch from 32 bpp to 24 bpp.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
This is a follow up of 31ca5d035d
("Implements screen to screen move correctly").
As now we don't copy memory to implement moves there's no
reason to take into account these area for memory mappings
as memory is not accessed anymore.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Yuri Benditovich <yuri.benditovich@daynix.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1411340
Do not set SupportNonVGA field for device rev.4 and higher.
Then the class driver will not call miniport's procedure
StopDeviceAndReleasePostDisplayOwnership upon PnP stop.
QXL device modes are not compatible with VGA ones; the
driver in this procedure returns display information related
to QXL mode which later used by BasicDisplay driver and causes
it to show the screen incorrectly or fail to show it at all.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Doing some fast check on Windows 8.1 you could note that
moving windows you got a weird effect were windows were a
bit misaligned.
As documented in DXGKARG_PRESENT_DISPLAYONLY page
NumMoves/pMoves fields point to an array of screen-to-screen
moves while our code implemented them as an image drawing
(the same implementation of dirty rects) causing the weird
effect mentioned.
This patch implement the moves using QXL_COPY_BITS operation
instead of a QXL_DRAW_COPY fixing the issue and avoiding sending
image to the server making the move/scroll operations on the
guest faster (and taking less bandwidth).
It seems that Windows 10 doesn't send the move commands but
instead send only dirty rects so you can't note this problem
using Windows 10.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Yuri Benditovich <yuri.benditovich@daynix.com>
This avoids having 2 pointers (client and server) if Windows decides
to render the mouse by itself. This happens, for instance, when moving
windows around.
Signed-off-by: Javier Celaya <javier.celaya@flexvdi.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Windows disables hw pointer acceleration and draws the cursor
in frame buffer if the driver does not report pointer capabilities
in QueryAdapterInfo. In this mode OS usually does not send pointer
commands to the driver or does it with pointer set to invisible
state. This mode of operation consumes CPU time and device-to-host
traffic. Now we enable pointer hardware acceleration.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
A more permissive licence is more in line with what Microsoft requires
for its WHQL certification
Signed-off-by: Christophe Fergeau <cfergeau@redhat.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Version information in INF file is configured by
environment variables.
The same version information placed in driver binary.
To set required version from external build engine,
define following environment variables:
VERSION_V1, VERSION_V2, VERSION_V3, VERSION_V4
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Dmitry Fleytman <dmitry@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Currently the qxl device with id 0 is being set as an internal display
while all the rest are set as VGA connector. This commit solves this
issue that was discussed in detail here:
https://bugzilla.redhat.com/show_bug.cgi?id=1314600
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Remove specifier that was causing a warning.
Based on a patch by Sandy Stutsman <sstutsma@redhat.com>
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Disable execution bit on mapping improving security.
MmMapIoSpaceEx is available only in Windows 10 so
to provide binary compatibility detect the new
function dynamically.
Added a separate compatibility file.
Based on a patch by Sandy Stutsman <sstutsma@redhat.com>
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
This make sure that these function goes into the non
paged section.
Also this change is much shorter than marking code if
can be paged as almost code can be paged.
It's also coherent with other source files.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Sameeh Jubran <sameeh@daynix.com>
Starting with Windows Display Driver Model (WDDM) 1.2, if the
DevicePowerState parameter is set to PowerDeviceD0, the display miniport
driver should call DxgkCbAcquirePostDisplayOwnership to query the
information about the display mode.
This patch fixies this bug:
https://bugzilla.redhat.com/show_bug.cgi?id=1202267
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
When qxl revision is 3, the vga driver is the one that is running.
While installing the driver the function VgaDevice::HWInit
has displayInfo structure zeroed out. The displayInfo should be
initialized using DxgkCbAcquirePostDisplayOwnership and thus it
should be called before calling HWInit.
Please note that we can't just move the call to "DxgkCbAcquirePostDisplayOwnership"
before calling HWInit as the m_Id isn't initialized for QxlDevice until the call to HWinit is over.
This patch fixes a bug similar to the one found here:
https://bugzilla.redhat.com/show_bug.cgi?id=1202267
However this one occurs when installing the driver.
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Based on a patch by Sandy Stutsman <sstutsma@redhat.com>
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
The PAGED_CODE macro ensures that the calling thread is running at an
IRQL that is low enough to permit paging. A call to this macro should be
made at the beginning of every driver routine that either contains
pageable code or accesses pageable code
Based on a patch by Sandy Stutsman <sstutsma@redhat.com>
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Part of source image mapped by PresentDisplayOnly
should be big enough to cover all rectangles being
transferred.
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
This patch fixes 2 issues:
1. Framebuffer should only be used in vga mode,
therefore when QxlDevice is active
FrameBufferIsActive flag shouldn't be checked;
2. FrameBufferIsActive flag should be set true
on successfull frame buffer allocation only.
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Framebuffer should only be used in VGA mode, as WDDM DOD
driver doesn't use the frame buffer (bar0), so no
reason to map in into memory. However the mode is only known
at runtime therefore framebuffer logic should be active when the
driver is operating in vga mode only.
There were rare BSOD failures when the mapping failed.
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
This call to BlackOutScreen is not needed since the actual
display surface is destroyed and created (redrawn) again.
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Interrupts seem to arrive to the driver before the initialization phase
is over (m_pHWDevice = NULL), in that case we can't handle interrupts yet.
Even when m_pHWDevice isn't NULL, other fields aren't necessarily fully
initialized till the StartDevice function has finished initialization,
thus the flag DriverStarted should be checked upon interrupts.
Note: There is no way provided by Microsoft to disable interrupts in WDDM
drivers.
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
Based on a patch by Sandy Stutsman <sstutsma@redhat.com>
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
This patch adds support for arbitrary resolution and updating
monitor configurations using custom ioctls.
This patch doesn't make any restriction for minimal resolution at all
as Windows can handle low resolution just fine, moreover the old (XPDM)
driver behaves like this too.
Based on a patch by Sandy Stutsman <sstutsma@redhat.com>
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
This patch sets text=auto in the .gitattributes file
and which ensures that line endings are normalized.
Moreover all of the files that are currently use DOS
line endings will remain this way.
As of this patch any new file that will be added to
this repository should use UNIX line endings.
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
The driver determines operation mode
(QXL or VGA) by checking device hardware
ids including revision id field.
Without this patch driver operates in VGA
mode for all revisions other than 4.
This patch makes driver operate in QXL
mode revision 4 and newer devices.
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
