Files
rocm-systems/projects/rocr-runtime/libhsakmt/include
Junhua Shen 0d98c3bdd5 libhsakmt: Implement per-context topology for multi-context KFD support (#2405)
This enhances libhsakmt's capabilities for multi-context KFD support by implementing per-context topology management.

Changes:
* Add hsaKmtGetClockCountersCtx for multi-context support
  - Add context-aware version of hsaKmtGetClockCounters
  - Original API is retained as a wrapper calling the ctx-version with primary context

* Enable independent debug sessions across multiple KFD contexts
  -Create hsa_kfd_debug_context, introduce context-aware debug APIs, shift debug state to per-context

* Add perf sub-context for per-context performance counter management
  - Introduce hsa_kfd_perf_context, move counter properties, add context - aware perf APIs, and update initialization

* Refactor FMM for per-context resource management
  - Refactor multiple global variables related to FMM, including 
    GPU ID arrays , svm, cpuvm_aperture, and mem_handle_aperture to hsa_kfd_fmm_context

* Implement per-context topology for complete context isolation
  - Migrate global topology data (g_system, g_props, map_user_to_sysfs_node_id)
     to per-context hsa_kfd_topology_context structure
  - Update all topology functions to accept HsaKFDContext parameter for
     context-aware operations (validate_nodeid, get_node_props, get_iolink_props, etc.)
  - Refactor topology snapshot management for per-context isolation
  - Add context-aware PMC trace access APIs

Signed-off-by: Junhua Shen <Junhua.Shen@amd.com>
2026-01-30 09:42:25 +08:00
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