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refactor(cam): remove read noise from noise architecture (Phase 2)

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- Make cam_read_noise a pass-through module, removing all noise injection logic
- Switch write noise to use noise_mask_bernoulli instead of noise_mask_grouped
- Add state machine to cam_write_noise for mask generation timing
- Remove noise_mask_grouped.sv (no longer needed)
- Remove read noise parameters from cam_noisy and cam_top
- Update simulation and benchmark code to reflect read noise removal
- Sync documentation to reflect Phase 2 architecture
This commit is contained in:
SikongJueluo
2026-05-26 23:02:22 +08:00
parent e5d13917b2
commit 8b4d4c1b57
29 changed files with 277 additions and 863 deletions
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20
hw/sim/mk/cocotb-common.mk
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@@ -37,11 +37,6 @@ COMPILE_ARGS += $(EXTRA_DEFINES)
WRITE_NOISE_EN ?= $(NOISE_EN)
WRITE_NOISE_RATE_NUM ?= $(NOISE_RATE_NUM)
WRITE_NOISE_RATE_DEN ?= $(NOISE_RATE_DEN)
WRITE_NOISE_BITS ?= $(NOISE_BITS)
READ_NOISE_EN ?= $(NOISE_EN)
READ_NOISE_RATE_NUM ?= $(NOISE_RATE_NUM)
READ_NOISE_RATE_DEN ?= $(NOISE_RATE_DEN)
READ_NOISE_BITS ?= $(NOISE_BITS)
ifneq ($(strip $(WRITE_NOISE_EN)),)
COMPILE_ARGS += -GWRITE_NOISE_EN=$(WRITE_NOISE_EN)
@@ -52,21 +47,6 @@ endif
ifneq ($(strip $(WRITE_NOISE_RATE_DEN)),)
COMPILE_ARGS += -GWRITE_NOISE_RATE_DEN=$(WRITE_NOISE_RATE_DEN)
endif
ifneq ($(strip $(WRITE_NOISE_BITS)),)
COMPILE_ARGS += -GWRITE_NOISE_BITS=$(WRITE_NOISE_BITS)
endif
ifneq ($(strip $(READ_NOISE_EN)),)
COMPILE_ARGS += -GREAD_NOISE_EN=$(READ_NOISE_EN)
endif
ifneq ($(strip $(READ_NOISE_RATE_NUM)),)
COMPILE_ARGS += -GREAD_NOISE_RATE_NUM=$(READ_NOISE_RATE_NUM)
endif
ifneq ($(strip $(READ_NOISE_RATE_DEN)),)
COMPILE_ARGS += -GREAD_NOISE_RATE_DEN=$(READ_NOISE_RATE_DEN)
endif
ifneq ($(strip $(READ_NOISE_BITS)),)
COMPILE_ARGS += -GREAD_NOISE_BITS=$(READ_NOISE_BITS)
endif
export PYTHONPATH := $(SIM_ROOT):$(PYTHONPATH)
export QUIET ?= 1

5
hw/sim/mk/rtl-sources.mk
View File

@@ -4,10 +4,9 @@ endif
RTL_RANDOM := $(RTL_ROOT)/random/random128.sv
RTL_NOISE_MASK := $(RTL_ROOT)/noise/noise_mask_grouped.sv
RTL_BERNOULLI_NOISE_MASK := $(RTL_ROOT)/noise/noise_mask_bernoulli.sv $(RTL_RANDOM)
RTL_WRITE_NOISE := $(RTL_NOISE_MASK) $(RTL_RANDOM) $(RTL_ROOT)/noise/cam_write_noise.sv
RTL_READ_NOISE := $(RTL_NOISE_MASK) $(RTL_RANDOM) $(RTL_ROOT)/noise/cam_read_noise.sv
RTL_WRITE_NOISE := $(RTL_BERNOULLI_NOISE_MASK) $(RTL_ROOT)/noise/cam_write_noise.sv
RTL_READ_NOISE := $(RTL_ROOT)/noise/cam_read_noise.sv
RTL_CAM_CORE_BANKED := $(RTL_ROOT)/core/cam_core_banked.sv
RTL_MATCH_ENGINE := \