Changeset b00fdde in mainline for arch/sparc64/include/asm.h

Timestamp:

2005-12-08T22:43:39Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

0d04024

Parents:

944b15c

Message:

sparc64 work.
Implement functions for reading IMMU and DMMU TLBs.

File:

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

arch/sparc64/include/asm.h

@@ -108 +108 @@
 }
 
+/** Load __u64 from alternate space.
+ *
+ * @param asi ASI determining the alternate space.
+ * @param va Virtual address within the ASI.
+ *
+ * @return Value read from the virtual address in the specified address space.
+ */
+static inline __u64 asi_u64_read(asi_t asi, __address va)
+{
+        __u64 v;
+        
+        __asm__ volatile ("ldxa [%1] %2, %0\n" : "=r" (v) : "r" (va), "i" (asi));
+        
+        return v;
+}
+
+/** Store __u64 to alternate space.
+ *
+ * @param asi ASI determining the alternate space.
+ * @param va Virtual address within the ASI.
+ * @param v Value to be written.
+ */
+static inline void asi_u64_write(asi_t asi, __address va, __u64 v)
+{
+        __asm__ volatile ("stxa %0, [%1] %2\n" : :  "r" (v), "r" (va), "i" (asi));
+}
+
 
 void cpu_halt(void);