aboutsummaryrefslogtreecommitdiff
path: root/include/asm-x86/bitops_64.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-x86/bitops_64.h')
-rw-r--r--include/asm-x86/bitops_64.h162
1 files changed, 0 insertions, 162 deletions
diff --git a/include/asm-x86/bitops_64.h b/include/asm-x86/bitops_64.h
deleted file mode 100644
index 365f8207ea5..00000000000
--- a/include/asm-x86/bitops_64.h
+++ /dev/null
@@ -1,162 +0,0 @@
-#ifndef _X86_64_BITOPS_H
-#define _X86_64_BITOPS_H
-
-/*
- * Copyright 1992, Linus Torvalds.
- */
-
-extern long find_first_zero_bit(const unsigned long *addr, unsigned long size);
-extern long find_next_zero_bit(const unsigned long *addr, long size, long offset);
-extern long find_first_bit(const unsigned long *addr, unsigned long size);
-extern long find_next_bit(const unsigned long *addr, long size, long offset);
-
-/* return index of first bet set in val or max when no bit is set */
-static inline long __scanbit(unsigned long val, unsigned long max)
-{
- asm("bsfq %1,%0 ; cmovz %2,%0" : "=&r" (val) : "r" (val), "r" (max));
- return val;
-}
-
-#define find_next_bit(addr,size,off) \
-((__builtin_constant_p(size) && (size) <= BITS_PER_LONG ? \
- ((off) + (__scanbit((*(unsigned long *)addr) >> (off),(size)-(off)))) : \
- find_next_bit(addr,size,off)))
-
-#define find_next_zero_bit(addr,size,off) \
-((__builtin_constant_p(size) && (size) <= BITS_PER_LONG ? \
- ((off)+(__scanbit(~(((*(unsigned long *)addr)) >> (off)),(size)-(off)))) : \
- find_next_zero_bit(addr,size,off)))
-
-#define find_first_bit(addr, size) \
- ((__builtin_constant_p((size)) && (size) <= BITS_PER_LONG \
- ? (__scanbit(*(unsigned long *)(addr), (size))) \
- : find_first_bit((addr), (size))))
-
-#define find_first_zero_bit(addr, size) \
- ((__builtin_constant_p((size)) && (size) <= BITS_PER_LONG \
- ? (__scanbit(~*(unsigned long *)(addr), (size))) \
- : find_first_zero_bit((addr), (size))))
-
-static inline void set_bit_string(unsigned long *bitmap, unsigned long i,
- int len)
-{
- unsigned long end = i + len;
- while (i < end) {
- __set_bit(i, bitmap);
- i++;
- }
-}
-
-/**
- * ffz - find first zero in word.
- * @word: The word to search
- *
- * Undefined if no zero exists, so code should check against ~0UL first.
- */
-static inline unsigned long ffz(unsigned long word)
-{
- __asm__("bsfq %1,%0"
- :"=r" (word)
- :"r" (~word));
- return word;
-}
-
-/**
- * __ffs - find first bit in word.
- * @word: The word to search
- *
- * Undefined if no bit exists, so code should check against 0 first.
- */
-static inline unsigned long __ffs(unsigned long word)
-{
- __asm__("bsfq %1,%0"
- :"=r" (word)
- :"rm" (word));
- return word;
-}
-
-/*
- * __fls: find last bit set.
- * @word: The word to search
- *
- * Undefined if no zero exists, so code should check against ~0UL first.
- */
-static inline unsigned long __fls(unsigned long word)
-{
- __asm__("bsrq %1,%0"
- :"=r" (word)
- :"rm" (word));
- return word;
-}
-
-#ifdef __KERNEL__
-
-#include <asm-generic/bitops/sched.h>
-
-/**
- * ffs - find first bit set
- * @x: the word to search
- *
- * This is defined the same way as
- * the libc and compiler builtin ffs routines, therefore
- * differs in spirit from the above ffz (man ffs).
- */
-static inline int ffs(int x)
-{
- int r;
-
- __asm__("bsfl %1,%0\n\t"
- "cmovzl %2,%0"
- : "=r" (r) : "rm" (x), "r" (-1));
- return r+1;
-}
-
-/**
- * fls64 - find last bit set in 64 bit word
- * @x: the word to search
- *
- * This is defined the same way as fls.
- */
-static inline int fls64(__u64 x)
-{
- if (x == 0)
- return 0;
- return __fls(x) + 1;
-}
-
-/**
- * fls - find last bit set
- * @x: the word to search
- *
- * This is defined the same way as ffs.
- */
-static inline int fls(int x)
-{
- int r;
-
- __asm__("bsrl %1,%0\n\t"
- "cmovzl %2,%0"
- : "=&r" (r) : "rm" (x), "rm" (-1));
- return r+1;
-}
-
-#define ARCH_HAS_FAST_MULTIPLIER 1
-
-#include <asm-generic/bitops/hweight.h>
-
-#endif /* __KERNEL__ */
-
-#ifdef __KERNEL__
-
-#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_atomic(lock, nr, addr) \
- test_and_clear_bit((nr), (unsigned long *)(addr))
-
-#include <asm-generic/bitops/minix.h>
-
-#endif /* __KERNEL__ */
-
-#endif /* _X86_64_BITOPS_H */