Commit Graph

196 Commits

Author SHA1 Message Date
Frediano Ziglio
54a719e14f Use DEVRAM if no more space is available in VRAM
Previous Windows drivers use mainly DEVRAM so in some environments
(like RHEV-M 4.0) VRAM is really limited.
This patch use DEVRAM as a fallback to avoid getting out of memory
conditions too earlier in such environments.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Yuri Benditovich <yuri.benditovich@daynix.com>
2017-04-12 11:07:06 +01:00
Frediano Ziglio
0214d5ceda Allocate commands on Bar0
This is required by Qemu for migration

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Yuri Benditovich <yuri.benditovich@daynix.com>
2017-04-12 09:19:01 +01:00
Frediano Ziglio
94770833a4 Use inline attribute for VA and PA
Don't use the old style _inline specifier.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Yuri Benditovich <yuri.benditovich@daynix.com>
2017-04-12 09:19:01 +01:00
Frediano Ziglio
8a8c6c41c0 Compute dynamically slot_id in PA and VA functions
This make easier to change allocation of memory using different
memory Bars.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Yuri Benditovich <yuri.benditovich@daynix.com>
2017-04-12 09:18:50 +01:00
Frediano Ziglio
53fb38c92f Use normal pointer for VA addresses
As VA addresses are used as pointers there's no need to handle
them as 64-bit integer (which make the code more complicated)

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Yuri Benditovich <yuri.benditovich@daynix.com>
2017-04-12 09:17:50 +01:00
Frediano Ziglio
6ec0533a7d Allocate m_MemSlots statically inside QxlDevice
There were always 2 slots used so make no sense to allocate
always dynamically.
Also in this way m_MainMemSlot and m_SurfaceMemSlot become
constant making the code slightly smaller.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Yuri Benditovich <yuri.benditovich@daynix.com>
2017-04-12 09:17:47 +01:00
Frediano Ziglio
7e0642c3f2 Remove m_NumMemSlots member
Only used once

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Yuri Benditovich <yuri.benditovich@daynix.com>
2017-04-12 09:17:46 +01:00
Frediano Ziglio
1b674d86e2 Compute automatically memory space in FreeMem
This make easier to change allocation of memory using different
memory Bars.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Yuri Benditovich <yuri.benditovich@daynix.com>
2017-04-12 09:17:39 +01:00
yuri.benditovich@daynix.com
8fb1b0a23e qxl-wddm-dod: Non-forced memory allocations with VSync
In case of VSync is active (for the driver this means it shall take
in account watchdog policy and ensure fast execution of PresentDisplayOnly
callback) allocate bitmaps for drawable objects using non-forced requests.
If immediate allocation is not possible, place entire bitmap into memory
chunk allocated from the OS.
If bitmap is allocated from device memory, but one of later
chunks can't be allocated, allocate this and further chunks from
OS memory. All these 'delayed' allocations placed into linked list
which root entry is part of QXLOutput structure.
>From separate thread, before sending drawable objects down, review
the list of delayed chunks and allocate device memory (forced) to
all of them.
The cost of solution is 2 pointers added to each drawable or cursor
object.
Cursor commands currently do not use them; in future we have an option
to offload also cursor commands.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
2017-04-12 08:21:01 +01:00
yuri.benditovich@daynix.com
043f4f275a qxl-wddm-dod: Implement non-forced bitmap allocation
Preparation for non-forced allocations.
Update bitmap creation procedure to allocate device memory forced
or non-forced.
In forced case it works as before.
In non-forced case, if allocation fails, the procedure allocates
memory from OS pool for entire bitmap and copies source data to it.
Later, before sending command, memory will be allocated from device
memory and copied from intermediate location to new one.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
2017-04-12 08:21:01 +01:00
yuri.benditovich@daynix.com
5c4f4adc7a qxl-wddm-dod: Dedicated procedure for bitmap creation
Move bitmap creation to dedicated procedure. Currently it
uses only forced allocations, as before. Later it will
be used from different flows, forced and non-forced.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
2017-04-12 08:21:01 +01:00
yuri.benditovich@daynix.com
06a4f7a846 qxl-wddm-dod: Optimize allocation of memory chunks
Increased size of allocation to reduce number of allocation per
bitmap. Before change the procedure ignored 'alloc_size' parameter
and always allocated memory chunk according to 'size' parameter.
As a result, first chunk could be up to 64K and all following are
limited by line size. For example, for bitmap 1280x1024 there was
more than 1008 chunks allocated, for bitmap 128x1024 - 897 chunks.
We change the procedure to use chunk size up to 64K (similar to first
chunk). This reduces in described examples number of allocation from
1008 to 64 and from 897 to 8 respectively.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
2017-04-12 08:21:01 +01:00
yuri.benditovich@daynix.com
9721a48dc9 qxl-wddm-dod: PutBytesAlign supports non-forced allocation
Preparation for offload of allocations from device's memory
to separate thread. Procedure PutBytesAlign is called to
allocate memory chunk from device memory and copy data to it.
With current commit the procedure (if called with non-NULL
linked list root entry parameter) can use non-forced allocation.
If such allocation fails, it allocates 'delayed' chunk from
OS memory and copies data to it. Later before sending drawable command
this chunk shall be processed, storage allocated from device memory
(forced) and data copied to it.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
2017-04-12 08:20:58 +01:00
yuri.benditovich@daynix.com
6a01308788 qxl-wddm-dod: Prepare for failure to allocate memory
Preparation for further scenarios when memory allocation failure
can happen and we'll need to use fallback when possible.
Memory allocation can fail in following cases:
- when non-forced memory allocation used and the attempt to allocate
  the memory must be as fast as possible, without waits
- when forced memory allocation used, but the driver already received
  stop command and waits for thread termination. Note that in case
  the VSync control is enabled stop command may happen even after the video
  subsystem executes switch to VGA mode. In such case QEMU will not return
  previously allocated objects (assuming the QXL driver already disabled
  and ignoring callbacks from Spice server in VGA mode).

In case of forced memory allocation the allocation routine waits
unpredictable time until the request is satisfied. In current commit
we do not acquire m_MemLock mutex for all this time, but release it
when entering long wait to allow another caller to try allocating memory.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
2017-04-12 08:20:54 +01:00
Frediano Ziglio
3437f04cea Pass 0 to level argument of KeInitializeMutex
As documented by Microsoft this reserved argument should be set
to 0.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Yuri Benditovich <yuri.benditovich@daynix.com>
2017-04-11 17:21:55 +01:00
yuri.benditovich@daynix.com
9460db8760 qxl-wddm-dod: Set VSync indication period to 200ms
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>
2017-04-03 10:15:44 +01:00
yuri.benditovich@daynix.com
074cc3ef58 qxl-wddm-dod: Registry-based control over VSync
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>
2017-04-03 10:14:40 +01:00
yuri.benditovich@daynix.com
223fe90a00 qxl-wddm-dod: Reduce amount of unnecessary printouts
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
2017-04-03 10:14:07 +01:00
yuri.benditovich@daynix.com
f86a615e52 qxl-wddm-dod: Debug warning on long wait on event
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>
2017-04-03 10:14:05 +01:00
yuri.benditovich@daynix.com
d8e645c751 qxl-wddm-dod: Introduce TimeMeasurement class for timing debugging
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>
2017-04-03 10:14:03 +01:00
yuri.benditovich@daynix.com
0987a61bff qxl-wddm-dod: Use rendering offload thread
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>
2017-04-03 10:14:01 +01:00
yuri.benditovich@daynix.com
7ca13f4f48 qxl-wddm-dod: Prepare system thread for rendering
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>
2017-04-03 10:13:54 +01:00
yuri.benditovich@daynix.com
c0506bcf5d qxl-wddm-dod: Preparation for VSync activation
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>
2017-02-22 16:38:28 +00:00
yuri.benditovich@daynix.com
db40bfd439 qxl-wddm-dod: Timer-based VSync interrupt indication
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>
2017-02-22 16:38:28 +00:00
yuri.benditovich@daynix.com
a2b58d1557 qxl-wddm-dod: Simplify interrupt handling for rev4 device
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>
2017-02-22 16:38:28 +00:00
yuri.benditovich@daynix.com
58b3a7a75b qxl-wddm-dod: Fix video modes enumeration
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>
2017-02-22 16:38:28 +00:00
yuri.benditovich@daynix.com
02c1ed6065 qxl-wddm-dod: Option to provide frequency data to the OS
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>
2017-02-22 16:38:28 +00:00
yuri.benditovich@daynix.com
72ed815334 qxl-wddm-dod: Return EDID data to the OS
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>
2017-02-22 16:38:28 +00:00
Yuri Benditovich
93c66603f0 qxl-wddm-dod: Updated Changelog for v0.16 2017-02-20 11:47:58 +02:00
yuri.benditovich@daynix.com
9ae81b279d qxl-wddm-dod: Startup case when OS does not supply frame buffer address
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>
2017-02-07 11:01:08 +00:00
Yuri Benditovich
12efc9b81b qxl-wddm-dod: Use 32 bpp for fallback mode
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>
2017-02-06 11:04:53 +00:00
Yuri Benditovich
12d9eec8cd qxl-wddm-dod: Allow easy modification of fallback setting
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
2017-02-06 11:04:52 +00:00
Yuri Benditovich
ec133ae0a6 qxl-wddm-dod: Discard meaningless copy of value
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
2017-02-06 11:04:52 +00:00
Frediano Ziglio
b621c297bd Do not take into account move operations for mapping
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>
2017-01-29 11:59:39 +00:00
Yuri Benditovich
53ca7ce4cd qxl-wddm-dod: Fix for screen not shown after driver disabled
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>
2017-01-26 11:27:01 +00:00
Yuri Benditovich
89b399e6be qxl-wddm-dod: Add Changelog file
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
2016-12-08 11:45:28 +00:00
Frediano Ziglio
31ca5d035d Implements screen to screen move correctly
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>
2016-12-06 06:44:24 +00:00
Javier Celaya
a495c21748 Fix default mode pitch
Signed-off-by: Javier Celaya <javier.celaya@flexvdi.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
2016-11-23 18:23:35 +00:00
Javier Celaya
1af6eb074c Remove unused code
Signed-off-by: Javier Celaya <javier.celaya@flexvdi.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
2016-11-23 18:23:14 +00:00
Javier Celaya
0ee4b29ea5 Send HIDE command when pointer is not visible
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>
2016-11-21 15:11:02 +00:00
Yuri Benditovich
da0680c8d5 qxl-wddm-dod: Enable hardware pointer acceleration
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>
2016-11-21 14:05:49 +00:00
Frediano Ziglio
3fe5c540f7 Update some file copyright statements
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Christophe Fergeau <cfergeau@redhat.com>
2016-11-07 09:45:14 +00:00
Christophe Fergeau
4332d07c73 Change licence to Apache v2
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>
2016-11-04 11:18:09 +00:00
Yuri Benditovich
6caff25931 Configurable version information in binary and INF
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>
2016-11-04 08:50:50 +00:00
Sameeh Jubran
4cba150eee Fixing indentation
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Acked-by: Pavel Grunt <pgrunt@redhat.com>
2016-10-31 09:34:45 +00:00
Pavel Grunt
0597b685cb Update README
Change URL for binaries and heading

Closes #2

Acked-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Victor Toso <victortoso@redhat.com>
2016-10-25 17:16:48 +02:00
Sameeh Jubran
1afadc7aeb Indicate all Qxl devices as VGA
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>
2016-10-19 17:58:55 +01:00
Sameeh Jubran
9501316d4c Code Analysis fix
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>
2016-10-19 17:45:21 +01:00
Frediano Ziglio
de8062e7b6 Use MmMapIoSpaceEx instead of MmMapIoSpace
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>
2016-10-19 17:39:42 +01:00
Frediano Ziglio
a86ef3acf8 Mark all functions that should go to non paged sections
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>
2016-10-19 17:39:15 +01:00