#ifdef __KERNEL__
-#include <asm/proc/system.h>
+#include <asm/proc-armv/system.h>
#define smp_mb__before_clear_bit() do { } while (0)
#define smp_mb__after_clear_bit() do { } while (0)
return (old & mask) != 0;
}
-extern int find_first_zero_bit(void * addr, unsigned size);
-extern int find_next_zero_bit(void * addr, int size, int offset);
-
/*
* This routine doesn't need to be atomic.
*/
return ((unsigned char *) addr)[nr >> 3] & (1U << (nr & 7));
}
+static inline int __ilog2(unsigned int x)
+{
+ return generic_fls(x) - 1;
+}
+
/*
* ffz = Find First Zero in word. Undefined if no zero exists,
* so code should check against ~0UL first..
return k;
}
+static inline int find_next_zero_bit(void *addr, int size, int offset)
+{
+ unsigned long *p = ((unsigned long *)addr) + (offset >> 5);
+ unsigned long result = offset & ~31UL;
+ unsigned long tmp;
+
+ if (offset >= size)
+ return size;
+ size -= result;
+ offset &= 31UL;
+ if (offset) {
+ tmp = *(p++);
+ tmp |= ~0UL >> (32-offset);
+ if (size < 32)
+ goto found_first;
+ if (~tmp)
+ goto found_middle;
+ size -= 32;
+ result += 32;
+ }
+ while (size & ~31UL) {
+ tmp = *(p++);
+ if (~tmp)
+ goto found_middle;
+ result += 32;
+ size -= 32;
+ }
+ if (!size)
+ return result;
+ tmp = *p;
+
+found_first:
+ tmp |= ~0UL >> size;
+found_middle:
+ return result + ffz(tmp);
+}
+
/*
* hweightN: returns the hamming weight (i.e. the number
* of bits set) of a N-bit word
#define hweight16(x) generic_hweight16(x)
#define hweight8(x) generic_hweight8(x)
+#define find_first_zero_bit(addr, size) \
+ find_next_zero_bit((addr), (size), 0)
+
#define ext2_set_bit test_and_set_bit
#define ext2_clear_bit test_and_clear_bit
#define ext2_test_bit test_bit
#endif /* __KERNEL__ */
+#include <asm-generic/bitops/__fls.h>
+#include <asm-generic/bitops/__ffs.h>
+#include <asm-generic/bitops/fls.h>
+#include <asm-generic/bitops/fls64.h>
+
#endif /* _ARM_BITOPS_H */