feat: refactor NMI interface and enhance performance logging

- Updated NMI interface references from  to  in multiple files for consistency.
- Added a new script  to convert UART performance records into structured JSON format.
- Enhanced the README documentation to include details about the new performance log parser.
- Implemented tests for the new performance log parser to ensure correct functionality.
- Added new test cases for DMA error handling and SDRAM data integrity to improve coverage.
- Updated existing test cases to accommodate changes in the NMI interface and added performance metrics.
- Refactored bus fault testbench to include fault code checks and improved error handling.
- Adjusted memory map generation and pin mapping tests to reflect recent changes in RTL structure.

configs/README.md

@@ -5,10 +5,16 @@ selects SoC, PDK, ISA, CSR support, application, linker layout, and the
 supported validation tier. The user-extension fabric is fixed; the management
 core defaults to `HAZARD3` and may be set to `PICORV32` with `CORE`.
 
-`ci/` contains pull-request profiles and `cluster/` contains configurations
-requiring site tools or PDKs. The nightly workflow reuses the IHP130 CI profile.
+`ci/` contains pull-request profiles, `cluster/` contains configurations
+requiring site tools or PDKs, and `benchmark/` contains fixed-workload baseline
+profiles. The nightly workflow reuses the IHP130 CI profile.
 Start builds from a committed profile rather than setting an unreviewed mix of
 variables on the command line.
 
+`PDK_BEHAV=YES` selects technology-wrapper functional models for behavioral
+simulation. It is a simulation-only setting, participates in the build variant
+key, and is invalid with Yosys synthesis. Profiles that execute from an SRAM
+macro must select either this mode or a qualified macro timing model.
+
 For supported profiles and commands, see the root [README](../README.md) and
 [agent contract](../AGENTS.md).

configs/benchmark/ihp130-hazard3.mk

@@ -0,0 +1,12 @@
+SOC             := MINI
+CORE            := HAZARD3
+PDK             := IHP130
+HAVE_PLL        := NO
+HAVE_SRAM_IF    := YES
+HAVE_SRAM_MACRO := YES
+PDK_BEHAV       := YES
+HAVE_SVA        := NO
+ISA             := RV32IM
+HAVE_CSR        := NO
+APP             := benchmark
+LINK_TYPE       := ld2_sram

configs/ci/ics55.mk

@@ -7,4 +7,4 @@ HAVE_SVA        := NO
 ISA             := RV32IM
 HAVE_CSR        := NO
 APP             := bringup
-LINK_TYPE       := ld2_psram
+LINK_TYPE       := ld2_psram