fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / include / asm-x86_64 / bitops.h

diff --git a/include/asm-x86_64/bitops.h b/include/asm-x86_64/bitops.h
index eb4df23..d4dbbe5 100644 (file)
--- a/include/asm-x86_64/bitops.h
+++ b/include/asm-x86_64/bitops.h
@@ -5,16 +5,16 @@
  * Copyright 1992, Linus Torvalds.
  */
 
-#include <linux/config.h>
+#include <asm/alternative.h>
 
-#ifdef CONFIG_SMP
-#define LOCK_PREFIX "lock ; "
+#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 1)
+/* Technically wrong, but this avoids compilation errors on some gcc
+   versions. */
+#define ADDR "=m" (*(volatile long *) addr)
 #else
-#define LOCK_PREFIX ""
+#define ADDR "+m" (*(volatile long *) addr)
 #endif
 
-#define ADDR (*(volatile long *) addr)
-
 /**
  * set_bit - Atomically set a bit in memory
  * @nr: the bit to set
@@ -29,7 +29,7 @@ static __inline__ void set_bit(int nr, volatile void * addr)
 {
        __asm__ __volatile__( LOCK_PREFIX
                "btsl %1,%0"
-               :"+m" (ADDR)
+               :ADDR
                :"dIr" (nr) : "memory");
 }
 
@@ -46,7 +46,7 @@ static __inline__ void __set_bit(int nr, volatile void * addr)
 {
        __asm__ volatile(
                "btsl %1,%0"
-               :"+m" (ADDR)
+               :ADDR
                :"dIr" (nr) : "memory");
 }
 
@@ -64,7 +64,7 @@ static __inline__ void clear_bit(int nr, volatile void * addr)
 {
        __asm__ __volatile__( LOCK_PREFIX
                "btrl %1,%0"
-               :"+m" (ADDR)
+               :ADDR
                :"dIr" (nr));
 }
 
@@ -72,7 +72,7 @@ static __inline__ void __clear_bit(int nr, volatile void * addr)
 {
        __asm__ __volatile__(
                "btrl %1,%0"
-               :"+m" (ADDR)
+               :ADDR
                :"dIr" (nr));
 }
 
@@ -92,7 +92,7 @@ static __inline__ void __change_bit(int nr, volatile void * addr)
 {
        __asm__ __volatile__(
                "btcl %1,%0"
-               :"+m" (ADDR)
+               :ADDR
                :"dIr" (nr));
 }
 
@@ -109,7 +109,7 @@ static __inline__ void change_bit(int nr, volatile void * addr)
 {
        __asm__ __volatile__( LOCK_PREFIX
                "btcl %1,%0"
-               :"+m" (ADDR)
+               :ADDR
                :"dIr" (nr));
 }
 
@@ -127,7 +127,7 @@ static __inline__ int test_and_set_bit(int nr, volatile void * addr)
 
        __asm__ __volatile__( LOCK_PREFIX
                "btsl %2,%1\n\tsbbl %0,%0"
-               :"=r" (oldbit),"+m" (ADDR)
+               :"=r" (oldbit),ADDR
                :"dIr" (nr) : "memory");
        return oldbit;
 }
@@ -147,7 +147,7 @@ static __inline__ int __test_and_set_bit(int nr, volatile void * addr)
 
        __asm__(
                "btsl %2,%1\n\tsbbl %0,%0"
-               :"=r" (oldbit),"+m" (ADDR)
+               :"=r" (oldbit),ADDR
                :"dIr" (nr));
        return oldbit;
 }
@@ -166,7 +166,7 @@ static __inline__ int test_and_clear_bit(int nr, volatile void * addr)
 
        __asm__ __volatile__( LOCK_PREFIX
                "btrl %2,%1\n\tsbbl %0,%0"
-               :"=r" (oldbit),"+m" (ADDR)
+               :"=r" (oldbit),ADDR
                :"dIr" (nr) : "memory");
        return oldbit;
 }
@@ -186,7 +186,7 @@ static __inline__ int __test_and_clear_bit(int nr, volatile void * addr)
 
        __asm__(
                "btrl %2,%1\n\tsbbl %0,%0"
-               :"=r" (oldbit),"+m" (ADDR)
+               :"=r" (oldbit),ADDR
                :"dIr" (nr));
        return oldbit;
 }
@@ -198,7 +198,7 @@ static __inline__ int __test_and_change_bit(int nr, volatile void * addr)
 
        __asm__ __volatile__(
                "btcl %2,%1\n\tsbbl %0,%0"
-               :"=r" (oldbit),"+m" (ADDR)
+               :"=r" (oldbit),ADDR
                :"dIr" (nr) : "memory");
        return oldbit;
 }
@@ -217,7 +217,7 @@ static __inline__ int test_and_change_bit(int nr, volatile void * addr)
 
        __asm__ __volatile__( LOCK_PREFIX
                "btcl %2,%1\n\tsbbl %0,%0"
-               :"=r" (oldbit),"+m" (ADDR)
+               :"=r" (oldbit),ADDR
                :"dIr" (nr) : "memory");
        return oldbit;
 }
@@ -243,7 +243,7 @@ static __inline__ int variable_test_bit(int nr, volatile const void * addr)
        __asm__ __volatile__(
                "btl %2,%1\n\tsbbl %0,%0"
                :"=r" (oldbit)
-               :"m" (ADDR),"dIr" (nr));
+               :"m" (*(volatile long *)addr),"dIr" (nr));
        return oldbit;
 }
 
@@ -356,14 +356,7 @@ static __inline__ unsigned long __fls(unsigned long word)
 
 #ifdef __KERNEL__
 
-static inline int sched_find_first_bit(const unsigned long *b)
-{
-       if (b[0])
-               return __ffs(b[0]);
-       if (b[1])
-               return __ffs(b[1]) + 64;
-       return __ffs(b[2]) + 128;
-}
+#include <asm-generic/bitops/sched.h>
 
 /**
  * ffs - find first bit set
@@ -412,43 +405,22 @@ static __inline__ int fls(int x)
        return r+1;
 }
 
-/**
- * hweightN - returns the hamming weight of a N-bit word
- * @x: the word to weigh
- *
- * The Hamming Weight of a number is the total number of bits set in it.
- */
+#define ARCH_HAS_FAST_MULTIPLIER 1
 
-#define hweight64(x) generic_hweight64(x)
-#define hweight32(x) generic_hweight32(x)
-#define hweight16(x) generic_hweight16(x)
-#define hweight8(x) generic_hweight8(x)
+#include <asm-generic/bitops/hweight.h>
 
 #endif /* __KERNEL__ */
 
 #ifdef __KERNEL__
 
-#define ext2_set_bit(nr,addr) \
-       __test_and_set_bit((nr),(unsigned long*)addr)
+#include <asm-generic/bitops/ext2-non-atomic.h>
+
 #define ext2_set_bit_atomic(lock,nr,addr) \
                test_and_set_bit((nr),(unsigned long*)addr)
-#define ext2_clear_bit(nr, addr) \
-       __test_and_clear_bit((nr),(unsigned long*)addr)
 #define ext2_clear_bit_atomic(lock,nr,addr) \
                test_and_clear_bit((nr),(unsigned long*)addr)
-#define ext2_test_bit(nr, addr)      test_bit((nr),(unsigned long*)addr)
-#define ext2_find_first_zero_bit(addr, size) \
-       find_first_zero_bit((unsigned long*)addr, size)
-#define ext2_find_next_zero_bit(addr, size, off) \
-       find_next_zero_bit((unsigned long*)addr, size, off)
-
-/* Bitmap functions for the minix filesystem.  */
-#define minix_test_and_set_bit(nr,addr) __test_and_set_bit(nr,(void*)addr)
-#define minix_set_bit(nr,addr) __set_bit(nr,(void*)addr)
-#define minix_test_and_clear_bit(nr,addr) __test_and_clear_bit(nr,(void*)addr)
-#define minix_test_bit(nr,addr) test_bit(nr,(void*)addr)
-#define minix_find_first_zero_bit(addr,size) \
-       find_first_zero_bit((void*)addr,size)
+
+#include <asm-generic/bitops/minix.h>
 
 #endif /* __KERNEL__ */