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feature: Add debug key to enable cross-shared concurrent p2p access

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Current support in the stack does not allow for concurrent access to
shared-allocations from host and peer devices when using page-faults.

So disable caps for now and introduce debug key for experimentation.

Access will be added by default as support in the stack becomes
available.

Signed-off-by: Jaime Arteaga <jaime.a.arteaga.molina@intel.com>
This commit is contained in:
Jaime Arteaga
2023-03-02 16:46:33 +00:00
committed by Compute-Runtime-Automation
parent 0b7817eecf
commit a87fd77fd4
4 changed files with 42 additions and 3 deletions
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1
shared/source/debug_settings/debug_variables_base.inl
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@@ -481,6 +481,7 @@ DECLARE_DEBUG_VARIABLE(bool, ForceAllResourcesUncached, false, "When set, all me
DECLARE_DEBUG_VARIABLE(bool, EnableDebuggerMmapMemoryAccess, false, "Mmap used to access memory by debug api, valid only on Linux OS")
DECLARE_DEBUG_VARIABLE(bool, ForceDefaultGrfCompilationMode, false, "Adds build option -cl-intel-128-GRF-per-thread to force kernel compilation in Default-GRF mode")
DECLARE_DEBUG_VARIABLE(bool, ForceLargeGrfCompilationMode, false, "Adds build option -cl-intel-256-GRF-per-thread to force kernel compilation in Large-GRF mode")
DECLARE_DEBUG_VARIABLE(bool, EnableConcurrentSharedCrossP2PDeviceAccess, false, "Enables the concurrent use between host and peer devices of shared-allocations ")
DECLARE_DEBUG_VARIABLE(int32_t, ForceAutoGrfCompilationMode, -1, "Adds build option -*-intel-enable-auto-large-GRF-mode to force kernel compilation")
DECLARE_DEBUG_VARIABLE(int32_t, ForceOCLVersion, 0, "Force specific OpenCL API version")
DECLARE_DEBUG_VARIABLE(int32_t, ForceOCL21FeaturesSupport, -1, "-1: default, 0: disable, 1:enable. Force support of OpenCL 2.0 and OpenCL 2.1 API features")

1
shared/test/common/test_files/igdrcl.config
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@@ -481,6 +481,7 @@ ExperimentalEnableTileAttach = 1
DirectSubmissionDisablePrefetcher = -1
ForceDefaultGrfCompilationMode = 0
ForceLargeGrfCompilationMode = 0
EnableConcurrentSharedCrossP2PDeviceAccess = 0
ForceStatelessMocsEncryptionBit = -1
ExperimentalCopyThroughLock = -1
ExperimentalH2DCpuCopyThreshold = -1