m1n1.trace.asc: Initial ASCTracer implementation

A tracer for the ASC coprocessor mailbox interface.

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

proxyclient/hv/trace_agx.py

@@ -1,5 +1,11 @@
 # SPDX-License-Identifier: MIT
 
-trace_device("/arm-io/gfx-asc")
-trace_device("/arm-io/sgx")
+trace_device("/arm-io/sgx", False)
 trace_device("/arm-io/pmp", False)
+trace_device("/arm-io/gfx-asc", False)
+
+from m1n1.trace.asc import ASCTracer
+
+ASCTracer = ASCTracer._reloadcls()
+gfx_tracer = ASCTracer(hv, "/arm-io/gfx-asc", verbose=True)
+gfx_tracer.start()

proxyclient/hv/trace_dcp.py

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: MIT
+
+trace_device("/arm-io/dcp", True, ranges=[1])
+
+from m1n1.trace.asc import ASCTracer
+
+ASCTracer = ASCTracer._reloadcls()
+dcp_tracer = ASCTracer(hv, "/arm-io/dcp", verbose=1)
+dcp_tracer.start()

proxyclient/m1n1/trace/asc.py

@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: MIT
+
+from ..hv import TraceMode
+from ..utils import *
+from . import ADTDevTracer
+
+class R_OUTBOX_CTRL(Register32):
+    EMPTY = 17
+
+class R_INBOX_CTRL(Register32):
+    ENABLE = 1
+
+class ASCRegs(RegMap):
+    INBOX_CTRL  = 0x8110, R_INBOX_CTRL
+    OUTBOX_CTRL = 0x8114, R_OUTBOX_CTRL
+    INBOX0      = 0x8800, Register64
+    INBOX1      = 0x8808, Register64
+    OUTBOX0     = 0x8830, Register64
+    OUTBOX1     = 0x8838, Register64
+
+class ASCTracer(ADTDevTracer):
+    DEFAULT_MODE = TraceMode.SYNC
+
+    REGMAPS = [ASCRegs, None]
+    NAMES = ["asc", None]
+
+    def w_OUTBOX_CTRL(self, val):
+        self.log(f"OUTBOX_CTRL = {val!s}")
+
+    def w_INBOX1(self, val):
+        inbox0 = self.asc.cached.INBOX0.val
+        self.log(f"SEND: {inbox0:016x}:{val.value:016x}")
+
+    def r_OUTBOX1(self, val):
+        outbox0 = self.asc.cached.OUTBOX0.val
+        self.log(f"RECV: {outbox0:016x}:{val.value:016x}")