X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=include%2Fasm-i386%2Fspinlock.h;h=d3bcebed60ca6ef4895b7a22ea139023f4a6d49f;hb=a075227948636e10aa2cc2d8725fbbab27681d4a;hp=324329313af8db5b4ea9b235d191307f4e4d7ce2;hpb=fb2e28485679418e459583605f9b19807a72ceca;p=powerpc.git

diff --git a/include/asm-i386/spinlock.h b/include/asm-i386/spinlock.h
index 324329313a..d3bcebed60 100644
--- a/include/asm-i386/spinlock.h
+++ b/include/asm-i386/spinlock.h
@@ -7,6 +7,15 @@
 #include <asm/processor.h>
 #include <linux/compiler.h>
 
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt.h>
+#else
+#define CLI_STRING	"cli"
+#define STI_STRING	"sti"
+#define CLI_STI_CLOBBERS
+#define CLI_STI_INPUT_ARGS
+#endif /* CONFIG_PARAVIRT */
+
 /*
  * Your basic SMP spinlocks, allowing only a single CPU anywhere
  *
@@ -50,25 +59,28 @@ static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long fla
 {
 	asm volatile(
 		"\n1:\t"
-		LOCK_PREFIX " ; decb %0\n\t"
+		LOCK_PREFIX " ; decb %[slock]\n\t"
 		"jns 5f\n"
 		"2:\t"
-		"testl $0x200, %1\n\t"
+		"testl $0x200, %[flags]\n\t"
 		"jz 4f\n\t"
-		"sti\n"
+		STI_STRING "\n"
 		"3:\t"
 		"rep;nop\n\t"
-		"cmpb $0, %0\n\t"
+		"cmpb $0, %[slock]\n\t"
 		"jle 3b\n\t"
-		"cli\n\t"
+		CLI_STRING "\n\t"
 		"jmp 1b\n"
 		"4:\t"
 		"rep;nop\n\t"
-		"cmpb $0, %0\n\t"
+		"cmpb $0, %[slock]\n\t"
 		"jg 1b\n\t"
 		"jmp 4b\n"
 		"5:\n\t"
-		: "+m" (lock->slock) : "r" (flags) : "memory");
+		: [slock] "+m" (lock->slock)
+		: [flags] "r" (flags)
+	 	  CLI_STI_INPUT_ARGS
+		: "memory" CLI_STI_CLOBBERS);
 }
 #endif
 
@@ -202,4 +214,8 @@ static inline void __raw_write_unlock(raw_rwlock_t *rw)
 				 : "+m" (rw->lock) : : "memory");
 }
 
+#define _raw_spin_relax(lock)	cpu_relax()
+#define _raw_read_relax(lock)	cpu_relax()
+#define _raw_write_relax(lock)	cpu_relax()
+
 #endif /* __ASM_SPINLOCK_H */