---

yaml --- r: 88908 b: refs/heads/master c: 709f744 h: refs/heads/master v: v3
git-mirror · Apr 17, 2008 · afe6a59 · afe6a59
1 parent b5af4d6
commit afe6a59
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Showing 2 changed files with 25 additions and 20 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6e908947b4995bc0e551a8257c586d5c3e428201
+refs/heads/master: 709f744f18ebc3a810d29c8d5502bf20c3cecc70
diff --git a/trunk/include/asm-x86/bitops.h b/trunk/include/asm-x86/bitops.h
@@ -24,9 +24,12 @@
 /* Technically wrong, but this avoids compilation errors on some gcc
    versions. */
 #define ADDR "=m" (*(volatile long *) addr)
+#define BIT_ADDR "=m" (((volatile int *) addr)[nr >> 5])
 #else
 #define ADDR "+m" (*(volatile long *) addr)
+#define BIT_ADDR "+m" (((volatile int *) addr)[nr >> 5])
 #endif
+#define BASE_ADDR "m" (*(volatile int *) addr)
 
 /**
  * set_bit - Atomically set a bit in memory
@@ -79,9 +82,8 @@ static inline void __set_bit(int nr, volatile void *addr)
  */
 static inline void clear_bit(int nr, volatile void *addr)
 {
-	asm volatile(LOCK_PREFIX "btr %1,%0"
-		     : ADDR
-		     : "Ir" (nr));
+	asm volatile(LOCK_PREFIX "btr %1,%2"
+		     : BIT_ADDR : "Ir" (nr), BASE_ADDR);
 }
 
 /*
@@ -100,7 +102,7 @@ static inline void clear_bit_unlock(unsigned nr, volatile void *addr)
 
 static inline void __clear_bit(int nr, volatile void *addr)
 {
-	asm volatile("btr %1,%0" : ADDR : "Ir" (nr));
+	asm volatile("btr %1,%2" : BIT_ADDR : "Ir" (nr), BASE_ADDR);
 }
 
 /*
@@ -135,7 +137,7 @@ static inline void __clear_bit_unlock(unsigned nr, volatile void *addr)
  */
 static inline void __change_bit(int nr, volatile void *addr)
 {
-	asm volatile("btc %1,%0" : ADDR : "Ir" (nr));
+	asm volatile("btc %1,%2" : BIT_ADDR : "Ir" (nr), BASE_ADDR);
 }
 
 /**
@@ -149,8 +151,8 @@ static inline void __change_bit(int nr, volatile void *addr)
  */
 static inline void change_bit(int nr, volatile void *addr)
 {
-	asm volatile(LOCK_PREFIX "btc %1,%0"
-		     : ADDR : "Ir" (nr));
+	asm volatile(LOCK_PREFIX "btc %1,%2"
+		     : BIT_ADDR : "Ir" (nr), BASE_ADDR);
 }
 
 /**
@@ -198,10 +200,10 @@ static inline int __test_and_set_bit(int nr, volatile void *addr)
 {
 	int oldbit;
 
-	asm("bts %2,%1\n\t"
-	    "sbb %0,%0"
-	    : "=r" (oldbit), ADDR
-	    : "Ir" (nr));
+	asm volatile("bts %2,%3\n\t"
+		     "sbb %0,%0"
+		     : "=r" (oldbit), BIT_ADDR
+		     : "Ir" (nr), BASE_ADDR);
 	return oldbit;
 }
 
@@ -238,10 +240,10 @@ static inline int __test_and_clear_bit(int nr, volatile void *addr)
 {
 	int oldbit;
 
-	asm volatile("btr %2,%1\n\t"
+	asm volatile("btr %2,%3\n\t"
 		     "sbb %0,%0"
-		     : "=r" (oldbit), ADDR
-		     : "Ir" (nr));
+		     : "=r" (oldbit), BIT_ADDR
+		     : "Ir" (nr), BASE_ADDR);
 	return oldbit;
 }
 
@@ -250,10 +252,10 @@ static inline int __test_and_change_bit(int nr, volatile void *addr)
 {
 	int oldbit;
 
-	asm volatile("btc %2,%1\n\t"
+	asm volatile("btc %2,%3\n\t"
 		     "sbb %0,%0"
-		     : "=r" (oldbit), ADDR
-		     : "Ir" (nr) : "memory");
+		     : "=r" (oldbit), BIT_ADDR
+		     : "Ir" (nr), BASE_ADDR);
 
 	return oldbit;
 }
@@ -288,10 +290,11 @@ static inline int variable_test_bit(int nr, volatile const void *addr)
 {
 	int oldbit;
 
-	asm volatile("bt %2,%1\n\t"
+	asm volatile("bt %2,%3\n\t"
 		     "sbb %0,%0"
 		     : "=r" (oldbit)
-		     : "m" (*(unsigned long *)addr), "Ir" (nr));
+		     : "m" (((volatile const int *)addr)[nr >> 5]),
+		       "Ir" (nr), BASE_ADDR);
 
 	return oldbit;
 }
@@ -310,6 +313,8 @@ static int test_bit(int nr, const volatile unsigned long *addr);
 	 constant_test_bit((nr),(addr)) :	\
 	 variable_test_bit((nr),(addr)))
 
+#undef BASE_ADDR
+#undef BIT_ADDR
 #undef ADDR
 
 #ifdef CONFIG_X86_32