m1n1.trace.dart: Add DART tracer/handler

Signed-off-by: Hector Martin <marcan@marcan.st>

proxyclient/hv/trace_dart.py

@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: MIT
+
+from m1n1.trace.dart import DARTTracer
+
+DARTTracer = DARTTracer._reloadcls()
+
+DEVICES = [
+    "/arm-io/dart-pmp",
+    "/arm-io/dart-sep",
+    "/arm-io/dart-sio",
+    "/arm-io/dart-usb1",
+    "/arm-io/dart-disp0",
+    "/arm-io/dart-dcp",
+    "/arm-io/dart-dispext0",
+    "/arm-io/dart-dcpext",
+    "/arm-io/dart-scaler",
+]
+
+dart_tracers = {}
+
+for i in DEVICES:
+    tracer = DARTTracer(hv, i, verbose=3)
+    tracer.start()
+
+    dart_tracers[i.split("-")[-1]] = tracer
+
+del tracer

proxyclient/m1n1/trace/dart.py

@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: MIT
+
+from ..hw.dart import *
+from ..hv import TraceMode
+from ..utils import *
+from . import ADTDevTracer
+
+class DARTTracer(ADTDevTracer):
+    RELOAD_DEPS = [DART]
+
+    DEFAULT_MODE = TraceMode.ASYNC
+
+    REGMAPS = [DARTRegs]
+    NAMES = ["regs"]
+
+    @classmethod
+    def _reloadcls(cls):
+        global DART
+        DART = DART._reloadcls()
+        return super()._reloadcls()
+
+    def start(self):
+        super().start()
+        self.dart = DART(self.hv.iface, self.regs.cached)
+
+    def w_STREAM_COMMAND(self, stream_command):
+        if stream_command.INVALIDATE:
+            self.dart.invalidate_cache()