Changeset a9ac978 in mainline for kernel/arch/sparc64/include/atomic.h

Timestamp:

2006-09-27T20:11:34Z (18 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

00b38a3

Parents:

86b31ba9

Message:

SMP stuff for sparc64.
Almost complete except for IPIs.
The absence of IPI support deadlocks
the kernel when more CPUs are configured.

File:

• kernel/arch/sparc64/include/atomic.h (modified) (3 diffs)

kernel/arch/sparc64/include/atomic.h

@@ -97 +97 @@
 {
         uint64_t v = 1;
+        volatile uintptr_t x = (uint64_t) &val->count;
 
-        __asm__ volatile ("casx %0, %2, %1\n" : "+m" (*val), "+r" (v) : "r" (0));
+        __asm__ volatile ("casx %0, %2, %1\n" : "+m" (*((uint64_t *) x)), "+r" (v) : "r" (0));
 
         return v;
@@ -107 +108 @@
         uint64_t tmp1 = 1;
         uint64_t tmp2;
+
+        volatile uintptr_t x = (uint64_t) &val->count;
 
         __asm__ volatile (
@@ -120 +123 @@
                 "nop\n"
         "2:\n"
-                : "+m" (*val), "+r" (tmp1), "+r" (tmp2) : "r" (0)
+                : "+m" (*((uint64_t *) x)), "+r" (tmp1), "+r" (tmp2) : "r" (0)
         );