This PR adds support in the Level Zero plugin to execute
constructors/destructors on the device code. As spirv-link has some
limitations, it mimics the CUDA plugin behavior where the RTL constructs
the device side tables before invoking the kernel that will execute
them.
The kernel and other necessary symbols to create the device tables are
created by the SPIRVCtorDtorLowering pass to be added in #187509
Additional cleanup improvements on error conditions (in addition to
those in #187597):
* Fixed incomplete cleanup in L0Context::init()
* Fixed build log leak in addModule()
* Fixed context inconsistent state in findDevices()
Disclaimer: The base of this PR was generated by Claude and adjusted by
me afterwards.
This change improves handling of errors during synchronization in Level
Zero plugin by ensuring cleanup of queues and events in case of an
synchronization error. As a result multiple tests stopped hanging.
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Co-authored-by: Duran, Alex <alejandro.duran@intel.com>
Queue's WaitEvent collection wasn't being cleared after synchronization
and resetting of the events. This led to hangs on subsequent host
synchronizations if not preceeded by any other operation.
- Accept OffloadBinaries as valid images by plugins that support them in
the PluginInterface.
- Add support in L0 plugin to extract SPIRV images and their associated
metadata from an OffloadBinary image.
Depends on:
- #185663
Follow-up PRs:
- #185413 (Changes SPIRV wrapper generation to use OffloadBinary)
- #185425 (Adjusts llvm-objdump)
- #184774 (Adjusts llvm-offload-binary)
As discussed in #185404 we might want to provide a way for plugins to
validate images not recognized by the common layer.
This PR adds such extension and uses it to validate pure SPIRV images by
the Level Zero plugin.
The default Level Zero loader `libze_loader.so` may not be available on
systems that don't have Level Zero development package. Level Zero
loaders with major version suffix are searched in that case.
Add liboffload asynchronous queue query API for libomptarget migration
This PR adds liboffload asynchronous queue query API that needed to make
libomptarget to use liboffload
Add liboffload memory data locking API for libomptarget migration
This PR adds liboffload memory data locking API that needed to make
libomptarget to use liboffload
This PR refactors how the device image is built so we can expose the
native ELF of the device to DeviceImageTy which solves several issues
regarding symbol look up (as DeviceImageTy expects an ELF). It also
simplifies the module linking code taking into account the latest
changes in the driver (which adds "-library-compilation when necessary).
---------
Co-authored-by: Alexey Sachkov <alexey.sachkov@intel.com>
Co-authored-by: Nick Sarnie <nick.sarnie@intel.com>
Co-authored-by: Joseph Huber <huberjn@outlook.com>
When looking for the device address of a symbol, we need to also look if
it's a function symbol if not found as global symbol in the device.
---------
Co-authored-by: Alexey Sachkov <alexey.sachkov@intel.com>
Co-authored-by: Nick Sarnie <nick.sarnie@intel.com>
Co-authored-by: Joseph Huber <huberjn@outlook.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Support for getDebugLevel was removed as part of the new debug macros
(#165416). This PR updates such usages to use the new ODBG_* macros.
---------
Co-authored-by: Alexey Sachkov <alexey.sachkov@intel.com>
Co-authored-by: Nick Sarnie <nick.sarnie@intel.com>
Co-authored-by: Joseph Huber <huberjn@outlook.com>
Add a new nextgen plugin that supports GPU devices through the Intel oneAPI Level Zero library. The plugin is not enabled by default and needs to be added to LIBOMPTARGET_PLUGINS_TO_BUILD explicitely.
---------
Co-authored-by: Alexey Sachkov <alexey.sachkov@intel.com>
Co-authored-by: Nick Sarnie <nick.sarnie@intel.com>
Co-authored-by: Joseph Huber <huberjn@outlook.com>
