Changeset e3f41b6 in mainline for arch/ia32

Timestamp:

2005-06-06T20:01:57Z (21 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

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

Children:

b0bf501

Parents:

d47f0e1

Message:

Code cleanup in scheduler.c thread.c - removed unnecessary spinlock.
atomic_inc, atomic_dec moved to arch/atomic.h instead of arch/smp/atomic.h,
advisable to use even in non-smp mode.
Fixed atomic_inc, atomic_dec in mips architecture.

Location:

arch/ia32

Files:

• Makefile.inc (modified) (1 diff)
• include/atomic.h (moved) (moved from arch/ia32/include/smp/atomic.h ) (1 diff)
• src/atomic.S (moved) (moved from arch/ia32/src/smp/atomic.S ) (2 diffs)

arch/ia32/Makefile.inc

@@ -31 +31 @@
         arch/smp/mps.c \
         arch/smp/smp.c \
-        arch/smp/atomic.S \
+        arch/atomic.S \
         arch/smp/ipi.c \
         arch/ia32.c \

arch/ia32/include/atomic.h

@@ -32 +32 @@
 #include <arch/types.h>
 
-extern void atomic_inc(int *val);
-extern void atomic_dec(int *val);
+extern void atomic_inc(volatile int *val);
+extern void atomic_dec(volatile int *val);
 
 extern int test_and_set(int *val);

arch/ia32/src/atomic.S

@@ -33 +33 @@
         pushl %ebx
         movl 8(%esp),%ebx
+#ifdef __SMP__  
         lock incl (%ebx)
+#else
+        incl (%ebx)
+#endif          
         popl %ebx
         ret
@@ -41 +45 @@
         pushl %ebx
         movl 8(%esp),%ebx
+#ifdef __SMP__  
         lock decl (%ebx)
+#else
+        decl (%ebx)
+#endif
         popl %ebx
         ret