feat: enhance testbench and system control for GA2D and data plane fault handling

- Updated onchip_ram64_tb to increase ID_WIDTH from 6 to 7 and adjusted related write/read tasks.
- Modified resource_controller_tb to accommodate an expanded resource count from 8 to 9, updating related logic signals.
- Enhanced sysctrl_tb to introduce new fault handling logic for data plane faults, including additional fault validation and delivery mechanisms.
- Added tests for clock and reset domains to ensure proper handling of data plane faults and their reset contracts.
- Introduced new test_ga2d_platform.py to verify GA2D Phase 2 functionality, including lifecycle and recovery processes.
- Updated test_soc_topology.py to ensure proper data master policies and validate GA2D integration within the system.
- Enhanced sysctrl.py to ensure the fault master retains the high bit for data plane faults.

scripts/check_clock_reset_domains.py

@@ -23,6 +23,10 @@ CDC_PRIMITIVES = {
     "edge_det",
     "hazard3_apb_async_bridge",
 }
+DATA_PLANE_FAULT_RESET_CONTRACT = {
+    "source_reset": "abort_accepted_mailbox_item",
+    "destination_reset": "abort_accepted_item_backpressure_unaccepted_source",
+}
 IDENTIFIER_RE = re.compile(r"[A-Za-z_][A-Za-z0-9_]*$")
 HIERARCHICAL_PIN_RE = re.compile(
     r"[A-Za-z_][A-Za-z0-9_.]*(?:/[A-Za-z_][A-Za-z0-9_.]*)+$"
@@ -144,6 +148,17 @@ def validate(document_path: Path, root: Path) -> None:
             raise ValueError(f"{field}.primitive is not an approved CDC primitive")
         path = root / require_string(crossing.get("path"), f"{field}.path")
         instance = require_identifier(crossing.get("instance"), f"{field}.instance")
+        if name == "data_plane_fault":
+            if primitive != "async_reqack" or instance != "u_fault_mailbox":
+                raise ValueError(
+                    f"{field} must use async_reqack instance u_fault_mailbox"
+                )
+            reset_contract = crossing.get("unilateral_reset")
+            if (not isinstance(reset_contract, dict) or
+                    reset_contract != DATA_PLANE_FAULT_RESET_CONTRACT):
+                raise ValueError(
+                    f"{field}.unilateral_reset must declare the data-plane fault reset contract"
+                )
         require_instance(path, primitive, instance, field)
 
 

scripts/run_c_tests.py

@@ -34,6 +34,7 @@ TEST_SOURCES = (
     "crt/src/hal/dma_math.c",
     "crt/src/hal/jpeg_math.c",
     "crt/src/hal/apu.c",
+    "crt/src/hal/fabric_monitor.c",
     "crt/src/hal/sysctrl.c",
     "crt/src/hal/clock.c",
     "crt/src/hal/resource.c",
@@ -95,6 +96,7 @@ def main() -> int:
             "-Werror",
             "-fno-builtin",
             "-DRS_APU_TEST_MMIO",
+            "-DRS_FABRIC_MONITOR_TEST_MMIO",
             "-I",
             str(memory_map_root / "include"),
             "-I",