Commit Graph

4 Commits

Author SHA1 Message Date
29f4cc91f6 fix(pipeline): add S_WAIT_READ_RESP state to fix read-noise PRNG timing
- Emit rd_valid_o for exactly one combinational cycle before waiting for
  read response, ensuring the read-noise PRNG advances once per batch issue
- Fix query handshake: wait for query_ready before asserting query_valid
  to avoid valid&&ready handshake drops on clock edges
- Add dynamic timeout estimation in test utilities based on DUT parameters
- Update test-top Makefile to run all noise configurations by default
- Remove uv run prefix from cocotb-config Makefile invocation
2026-05-22 19:04:50 +08:00
e4cbb5e30d feat(hw/rtl): implement full Top-K CAM search pipeline with serial result output
- add TOPK_K, FIFO_DEPTH, RESULT_SERIAL parameters to cam_params
- add candidate_fifo: synchronous ready/valid FIFO for (row, score) candidates
- add topk_tracker: tracks top-K candidates with clear/ready handshake
- add result_serializer: serializes packed Top-K array into rank-ordered stream
- refactor match_engine_pipeline from 4-state to 8-state Top-K pipeline
- extend cam_top with serial Top-K interface (result_rank/row/score/last)
- add backward-compatible top1_index/top1_score aliases from rank-0 beat
- add comprehensive tests for all new modules
2026-05-19 22:43:21 +08:00
e8c890a69f feat(sim): enable read noise by default and improve test infrastructure
- Set READ_NOISE_EN=1 as default in cam_top.sv
- Wire READ_NOISE_* parameters to NOISE_* makefile variables in cocotb-common.mk
- Add PYTHON env variable support in Makefile for test invocation
- Update .gitignore with glob patterns (**/sim_build/, **/results.xml, *.fst)
- Add justfile recipe for remote cam-test-top execution
2026-05-17 14:11:59 +08:00
ca167e79c6 refactor(hw/sim): extract common cocotb make infrastructure into shared mk/ directory
- Split monolithic hw/sim/Makefile into modular include files (mk/cocotb-common.mk, mk/rtl-sources.mk)
- Add per-module test Makefiles (cam_core_banked, cam_read_noise, cam_write_noise, match_engine_pipeline, perf, top)
- Add missing simulation tools (yosys, graphviz, xdot) to devenv.nix
- Fix path handling in sweep_noise.py and test modules to be HASH_BITS-aware
2026-05-16 19:24:17 +08:00