Changeset 8ac5fe7 in mainline for arch/sparc64/include/asm.h

Timestamp:

2005-12-02T16:18:23Z (20 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

060ce90

Parents:

414f59c

Message:

sparc64 work.
Add dummy trap tables.

File:

• arch/sparc64/include/asm.h (modified) (1 diff)

arch/sparc64/include/asm.h

@@ -86 +86 @@
 }
 
+/** Read Trap Base Address register.
+ *
+ * @return Current value in TBA.
+ */
+static inline __u64 tba_read(void)
+{
+        __u64 v;
+        
+        __asm__ volatile ("rdpr %%tba, %0\n" : "=r" (v));
+        
+        return v;
+}
+
+/** Write Trap Base Address register.
+ *
+ * @param New value of TBA.
+ */
+static inline void tba_write(__u64 v)
+{
+        __asm__ volatile ("wrpr %0, %1, %%tba\n" : : "r" (v), "i" (0));
+}
+
+
 void cpu_halt(void);
 void cpu_sleep(void);