Changeset 10caad0 in mainline for arch/ppc/include/asm.h

Timestamp:

2005-08-30T17:37:50Z (20 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

7ce9284

Parents:

db5e25f

Message:

PPC memory size detection

File:

• arch/ppc/include/asm.h (modified) (2 diffs)

arch/ppc/include/asm.h

@@ -1 +1 @@
 /*
- * Copyright (C) 2005 Jakub Jermar
+ * Copyright (C) 2005 Martin Decky
  * All rights reserved.
  *
@@ -33 +33 @@
 #include <config.h>
 
+/** Set priority level low
+ *
+ * Enable interrupts and return previous
+ * value of EE.
+ */
+static inline pri_t cpu_priority_low(void) {
+        pri_t v;
+        __asm__ volatile (
+                "\n"
+                : "=r" (v)
+        );
+        return v;
+}
+
+/** Set priority level high
+ *
+ * Disable interrupts and return previous
+ * value of EE.
+ */
+static inline pri_t cpu_priority_high(void) {
+        pri_t v;
+        __asm__ volatile (
+                "\n"
+                : "=r" (v)
+        );
+        return v;
+}
+
+/** Restore priority level
+ *
+ * Restore EE.
+ */
+static inline void cpu_priority_restore(pri_t pri) {
+        __asm__ volatile (
+                "\n"
+                : : "r" (pri)
+        );
+}
+
 /* TODO: implement the real stuff */
 static inline __address get_stack_base(void)