Integrates rocm-kpack runtime library for loading device code from
external kpack archives at HIP initialization time.
Changes:
- Add kpack_params_ optional to FatBinaryInfo for HIPK metadata
- Parse HIPK magic (0x4B504948) in digestFatBinary to detect kpack'd binaries
- Add ExtractKpackBinary() to load code objects via kpack_load_code_object()
- Wire up kpack cache lifecycle in hip_global.cpp
- Track kpack allocations for proper cleanup
- Support multi-TU binaries via bundle_index (co_index parameter)
The ROCM_KPACK_ENABLED cmake flag controls whether kpack support is compiled
in. When disabled, HIPK binaries return hipErrorNotSupported.
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Co-authored-by: Claude <noreply@anthropic.com>
Stella Laurenzo
e0dcba903e