From 3fe51aefde1fb2ad7c7bcebf2d5e42e75607ae77 Mon Sep 17 00:00:00 2001
From: Arthur Hanson Rasmusson <arthur@vgpu.io>
Date: Sun, 25 Oct 2026 10:09:05 -0400
Subject: wall-2 session-86 tools: vk_memprops.py (standalone Vulkan
 memory-properties dump), vk_alloc_test.py (standalone allocation reproducer),
 t91.py (auto-clear + ICD memprops/alloc hooks), t90.py (A8 count auto-clear)

---
 tools/guest-diag/wall2/t90.py | 57 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 tools/guest-diag/wall2/t90.py

(limited to 'tools/guest-diag/wall2/t90.py')

diff --git a/tools/guest-diag/wall2/t90.py b/tools/guest-diag/wall2/t90.py
new file mode 100644
index 0000000..8518235
--- /dev/null
+++ b/tools/guest-diag/wall2/t90.py
@@ -0,0 +1,57 @@
+import gdb, sys
+
+inf = gdb.selected_inferior()
+pid = inf.pid
+base = None
+for line in open("/proc/%d/maps" % pid):
+    if "libnvidia-eglcore.so.570.144" in line:
+        parts = line.split()
+        lo, hi = [int(x, 16) for x in parts[0].split('-')]
+        off = int(parts[2], 16)
+        if off == 0:
+            base = lo
+            break
+if base is None:
+    print("EGLBASE not found"); gdb.execute("detach"); sys.exit(1)
+COUNT = base + 0x2070b7c
+print("EGLBASE 0x%x PID %d COUNT_ADDR 0x%x" % (base, pid, COUNT))
+
+def rd(a, n):
+    return inf.read_memory(a, n).tobytes()
+def u32(a):
+    return int.from_bytes(rd(a, 4), 'little')
+
+state = {"n": 0}
+
+class B(gdb.Breakpoint):
+    def __init__(self, spec, limit=100000):
+        super().__init__(spec, internal=False)
+        self.limit = limit; self.hits = 0
+        self.silent = True
+    def stop(self):
+        self.hits += 1
+        try:
+            v = u32(COUNT)
+            if v:
+                state["n"] += 1
+                if state["n"] <= 8:
+                    print("CLEAR count %u -> 0 (hit %d)" % (v, self.hits))
+                gdb.execute("set {unsigned int}0x%x = 0" % COUNT)
+        except Exception as e:
+            print("ERR", e)
+        return self.hits >= 400
+
+B("*0x%x" % (base+0xa85d24), 400)
+
+try:
+    gdb.execute("continue")
+except gdb.error as e:
+    print("CONT-ERR %s" % e)
+except KeyboardInterrupt:
+    pass
+print("TRACE-END clears=%d" % state["n"])
+try:
+    gdb.execute("detach")
+except gdb.error as e:
+    print("DETACH-ERR %s" % e)
+gdb.execute("quit")
-- 
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