Integrate uACPI

kernel/uACPI/tests/test-cases/global-lock.asl

@@ -0,0 +1,48 @@
+// Name: Global lock works
+// Expect: int => 0
+
+DefinitionBlock ("", "DSDT", 2, "uTEST", "TESTTABL", 0xF0F0F0F0)
+{
+    Method (CHEK, 1, Serialized, 15)
+    {
+        If (Arg0 != 0) {
+            Debug = "Failed to acquire the global lock!"
+            Return (1)
+        }
+
+        Return (0)
+    }
+
+    Method (MAIN, 0, Serialized)
+    {
+        Local0 = 0
+
+        Debug = "Acquiring the lock manually!"
+
+        Local0 += CHEK(Acquire (_GL, 0xFFFF))
+        Local0 += CHEK(Acquire (_GL, 0xFFFF))
+        Local0 += CHEK(Acquire (_GL, 0xFFFF))
+        Local0 += CHEK(Acquire (_GL, 0xFFFF))
+
+        Debug = "Doing a field write..."
+
+        OperationRegion(NVSM, SystemMemory, 0x100000, 128)
+        Field (NVSM, AnyAcc, Lock, WriteAsZeros) {
+            FILD, 1,
+        }
+
+        FILD = 1
+
+        Debug = "Write done, we should still be holding the lock!"
+        Release(_GL)
+        Release(_GL)
+        Release(_GL)
+
+        Debug = "Should release NOW!"
+        Release(_GL)
+
+        // TODO? Would be nice to have some way to actually verify that a lock is held...
+
+        Return (Local0)
+    }
+}