diff options
Diffstat (limited to 'include/asm-cris/arch-v32/bitops.h')
-rw-r--r-- | include/asm-cris/arch-v32/bitops.h | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/include/asm-cris/arch-v32/bitops.h b/include/asm-cris/arch-v32/bitops.h deleted file mode 100644 index 147689d6b62..00000000000 --- a/include/asm-cris/arch-v32/bitops.h +++ /dev/null @@ -1,64 +0,0 @@ -#ifndef _ASM_CRIS_ARCH_BITOPS_H -#define _ASM_CRIS_ARCH_BITOPS_H - -/* - * Helper functions for the core of the ff[sz] functions. They compute the - * number of leading zeroes of a bits-in-byte, byte-in-word and - * word-in-dword-swapped number. They differ in that the first function also - * inverts all bits in the input. - */ - -static inline unsigned long -cris_swapnwbrlz(unsigned long w) -{ - unsigned long res; - - __asm__ __volatile__ ("swapnwbr %0\n\t" - "lz %0,%0" - : "=r" (res) : "0" (w)); - - return res; -} - -static inline unsigned long -cris_swapwbrlz(unsigned long w) -{ - unsigned long res; - - __asm__ __volatile__ ("swapwbr %0\n\t" - "lz %0,%0" - : "=r" (res) : "0" (w)); - - return res; -} - -/* - * Find First Zero in word. Undefined if no zero exist, so the caller should - * check against ~0 first. - */ -static inline unsigned long -ffz(unsigned long w) -{ - return cris_swapnwbrlz(w); -} - -/* - * Find First Set bit in word. Undefined if no 1 exist, so the caller - * should check against 0 first. - */ -static inline unsigned long -__ffs(unsigned long w) -{ - return cris_swapnwbrlz(~w); -} - -/* - * Find First Bit that is set. - */ -static inline unsigned long -kernel_ffs(unsigned long w) -{ - return w ? cris_swapwbrlz (w) + 1 : 0; -} - -#endif /* _ASM_CRIS_ARCH_BITOPS_H */ |