6 Commits

Author	SHA1	Message	Date
SikongJueluo	e5d13917b2	feat(cam): add Bernoulli noise mask module and cocotb tests ... - Add noise_mask_bernoulli.sv RTL module for probabilistic masking - Add cocotb test suite with reset, threshold, determinism, and distribution checks - Update rtl-sources.mk to include new module - Fix PYTHONPATH in devenv.nix shell hook	2026-05-26 19:41:17 +08:00
SikongJueluo	e1bed00cc4	feat(retrieval): add CAM retrieval benchmark with topk scoring and read noise support ... - Add cocotb benchmark infrastructure under hw/sim/benchmarks/retrieval/ with Makefile - Implement test_retrieval_benchmark.py supporting configurable topk-k, read/write noise - Add cluster-based synthetic dataset generator with configurable bit-flip rates - Add reference model functions: match_topk, match_topk_from_scores, score_rows_with_read_noise - Add .justfile shortcuts: cam-test-retrieval-no-noise, cam-test-retrieval-read-noise - Add TOPK_K to Verilator EXTRA_ARGS via cocotb-common.mk - Add unit tests for topk sorting logic and stateful read-noise scoring	2026-05-22 19:04:54 +08:00
SikongJueluo	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
SikongJueluo	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
SikongJueluo	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
SikongJueluo	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