Conor McCarthy : vkd3d: Map timeline semaphore values to fence virtual values and buffer out-of-order waits.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: 8cae04680307141c06c5d7f82b5568a8b3380e96
URL:    https://source.winehq.org/git/vkd3d.git/?a=commit;h=8cae04680307141c06c5d7f8...

Author: Conor McCarthy 
Date:   Fri May 13 01:11:06 2022 +1000

vkd3d: Map timeline semaphore values to fence virtual values and buffer out-of-order waits.

Strictly increasing timeline values must be mapped to fence virtual values
to avoid invalid use of Vulkan timeline semaphores. In particular, non-
increasing values and value jumps of >= 4G are permitted in d3d12.

Different virtual D3D12 command queues may map to the same Vulkan queue.
If a wait of value N is submitted on one command queue, and then a signal
for >= N is submitted on another, but they are sent to the same Vk queue,
the wait will never complete. The solution is to buffer out-of-order waits
and any subsequent queue commands until an unblocking signal value is
submitted to a different D3D12 queue, or signaled on the CPU.

Buffering out-of-order waits also fixes the old fence implementation so it
is fully functional, though a bit less efficient than timeline semaphores.

Based in part on vkd3d-proton patches by Hans-Kristian Arntzen. Unlike the
vkd3d-proton implementation, this patch does not use worker threads for
submissions to the Vulkan queue.

Signed-off-by: Conor McCarthy 
Signed-off-by: Henri Verbeet 
Signed-off-by: Alexandre Julliard

---

libs/vkd3d/command.c       | 894 +++++++++++++++++++++++++++------------------
 libs/vkd3d/device.c        |  81 +---
 libs/vkd3d/vkd3d_private.h |  78 +++-
 tests/d3d12.c              |   4 +-
 4 files changed, 602 insertions(+), 455 deletions(-)

Diff:   https://source.winehq.org/git/vkd3d.git/?a=commitdiff;h=8cae04680307141c06c5...