From 5ad5458f9ea2b6fa91f2ee2538aa82f1eead5dfb Mon Sep 17 00:00:00 2001
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Sat, 4 Aug 2007 17:50:50 +0000
Subject: 2007-08-04 Samuel Thibault <samuel.thibault@ens-lyon.org>
* linux/dev/include/asm-i386/system.h: Update to Linux 2.2 for SMP.
---
linux/dev/include/asm-i386/system.h | 31 +++++++++++++++++++++++++------
1 file changed, 25 insertions(+), 6 deletions(-)
(limited to 'linux/dev')
diff --git a/linux/dev/include/asm-i386/system.h b/linux/dev/include/asm-i386/system.h
index ecd2d75..3e17d2d 100644
--- a/linux/dev/include/asm-i386/system.h
+++ b/linux/dev/include/asm-i386/system.h
@@ -221,15 +221,34 @@ static inline unsigned long __xchg(unsigned long x, void * ptr, int size)
}
#define mb() __asm__ __volatile__ ("" : : :"memory")
-#define sti() __asm__ __volatile__ ("sti": : :"memory")
-#define cli() __asm__ __volatile__ ("cli": : :"memory")
-
-#define save_flags(x) \
+#define __sti() __asm__ __volatile__ ("sti": : :"memory")
+#define __cli() __asm__ __volatile__ ("cli": : :"memory")
+#define __save_flags(x) \
__asm__ __volatile__("pushfl ; popl %0":"=g" (x): /* no input */ :"memory")
-
-#define restore_flags(x) \
+#define __restore_flags(x) \
__asm__ __volatile__("pushl %0 ; popfl": /* no output */ :"g" (x):"memory")
+#ifdef __SMP__
+
+extern void __global_cli(void);
+extern void __global_sti(void);
+extern unsigned long __global_save_flags(void);
+extern void __global_restore_flags(unsigned long);
+#define cli() __global_cli()
+#define sti() __global_sti()
+#define save_flags(x) ((x)=__global_save_flags())
+#define restore_flags(x) __global_restore_flags(x)
+
+#else
+
+#define cli() __cli()
+#define sti() __sti()
+#define save_flags(x) __save_flags(x)
+#define restore_flags(x) __restore_flags(x)
+
+#endif
+
+
#define iret() __asm__ __volatile__ ("iret": : :"memory")
#define _set_gate(gate_addr,type,dpl,addr) \
--
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