derek.holloway
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52 lines
2.3 KiB
Markdown
52 lines
2.3 KiB
Markdown
# Changelog
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All notable changes to rocjitsu are documented here.
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Format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
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Versioning follows [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
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## [0.3.0] - 2026-07-17
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### Added
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- Public `rj_daemon_start()`, `rj_daemon_stop()`, and `rj_daemon_status()` APIs
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for hosting a daemon-mode VM and its Unix-socket RPC server in
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`librocjitsu`
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### Changed
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- Use the shared daemon lifecycle implementation from both the RocJitsu CLI and
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Mirage, eliminating their duplicate RPC server implementations
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- Accept JSON configuration contents directly in `rj_daemon_start()` while
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retaining path-based configuration at the frontend command-line interfaces
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- Harden daemon startup and shutdown with stale-socket recovery, socket
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identity checks, active-client interruption, and ordered thread cleanup
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## [0.2.0] - 2026-06-23
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### Changed
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- Serve the amdgpu/DRM ioctl ABI natively so upstream libdrm_amdgpu runs
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unmodified over the simulator; DRM device discovery and queries are handled at
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the syscall layer instead of by intercepting libdrm library symbols
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- **BREAKING:** `rj_vm_device_open()` now takes a connecting client's PID:
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`rj_vm_device_open(vm, rj_client_pid_t client_pid, uint32_t *process_id)`. The
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new `rj_client_pid_t` is a fixed-width (`int32_t`) typedef so the public header
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stays OS- and ABI-width-agnostic. Pass 0 in local mode; a nonzero PID enables
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daemon-mode process reuse and cross-process memory access
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### Added
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- Daemon-mode multi-process client support: per-client process reuse,
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client-PID identification via SO_PEERCRED, and cross-process GPU memory access
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- Vendored kernel DRM UAPI headers (drm.h, amdgpu_drm.h, drm_mode.h) for native
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amdgpu ioctl struct fidelity
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## [0.1.0] - 2026-06-04
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### Added
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- Daemon-based GPU simulator via LD_PRELOAD interposition
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- ISA execution engine with codegen pipeline (10 AMDGPU targets + RISC-V)
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- AQL packet dispatch with doorbell-monitored hardware queues
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- Multi-GPU topology with per-GPU command processors
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- KFD driver emulation (ioctls, mmap, event system, VMID page tables)
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- HIP kernel tests (vector_add, memcpy, GEMM)
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- RCCL collective tests (AllReduce, Broadcast, AllGather, ReduceScatter, SendRecv)
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- CLI with local, daemon, and attach modes
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- JSON-configurable SoC topology
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