Lines Matching refs:nbits
18 #define BITMAP_LAST_WORD_MASK(nbits) (~0UL >> (-(nbits) & (BITS_PER_LONG - 1))) argument
19 #define small_const_nbits(nbits) \ argument
20 (__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG)
90 static inline void bitmap_zero(unsigned long *dst, int nbits) in bitmap_zero() argument
92 if (small_const_nbits(nbits)) { in bitmap_zero()
95 int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long); in bitmap_zero()
188 static inline void bitmap_fill(unsigned long *dst, unsigned int nbits) in bitmap_fill() argument
190 if (small_const_nbits(nbits)) { in bitmap_fill()
193 unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long); in bitmap_fill()
199 static inline bool bitmap_empty(const unsigned long *src, unsigned int nbits) in bitmap_empty() argument
201 if (small_const_nbits(nbits)) in bitmap_empty()
202 return !(*src & BITMAP_LAST_WORD_MASK(nbits)); in bitmap_empty()
204 return find_first_bit(src, nbits) == nbits; in bitmap_empty()
208 const unsigned long *src2, unsigned int nbits) in bitmap_or() argument
210 if (small_const_nbits(nbits)) in bitmap_or()
213 __bitmap_or(dst, src1, src2, nbits); in bitmap_or()
216 static inline int bitmap_weight(const unsigned long *src, unsigned int nbits) in bitmap_weight() argument
218 if (small_const_nbits(nbits)) in bitmap_weight()
219 return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits)); in bitmap_weight()
220 return __bitmap_weight(src, nbits); in bitmap_weight()
224 unsigned int nbits) in bitmap_set() argument
226 if (__builtin_constant_p(nbits) && nbits == 1) in bitmap_set()
230 __builtin_constant_p(nbits & BITMAP_MEM_MASK) && in bitmap_set()
231 IS_ALIGNED(nbits, BITMAP_MEM_ALIGNMENT)) in bitmap_set()
232 memset((char *)map + start / 8, 0xff, nbits / 8); in bitmap_set()
234 __bitmap_set(map, start, nbits); in bitmap_set()
238 unsigned int nbits) in bitmap_clear() argument
240 if (__builtin_constant_p(nbits) && nbits == 1) in bitmap_clear()
244 __builtin_constant_p(nbits & BITMAP_MEM_MASK) && in bitmap_clear()
245 IS_ALIGNED(nbits, BITMAP_MEM_ALIGNMENT)) in bitmap_clear()
246 memset((char *)map + start / 8, 0, nbits / 8); in bitmap_clear()
248 __bitmap_clear(map, start, nbits); in bitmap_clear()