forked from KolibriOS/kolibrios
ddk: 4.4
git-svn-id: svn://kolibrios.org@6082 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
@@ -52,16 +52,13 @@
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* bitmap_bitremap(oldbit, old, new, nbits) newbit = map(old, new)(oldbit)
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* bitmap_onto(dst, orig, relmap, nbits) *dst = orig relative to relmap
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* bitmap_fold(dst, orig, sz, nbits) dst bits = orig bits mod sz
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* bitmap_scnprintf(buf, len, src, nbits) Print bitmap src to buf
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* bitmap_parse(buf, buflen, dst, nbits) Parse bitmap dst from kernel buf
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* bitmap_parse_user(ubuf, ulen, dst, nbits) Parse bitmap dst from user buf
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* bitmap_scnlistprintf(buf, len, src, nbits) Print bitmap src as list to buf
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* bitmap_parselist(buf, dst, nbits) Parse bitmap dst from kernel buf
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* bitmap_parselist_user(buf, dst, nbits) Parse bitmap dst from user buf
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* bitmap_find_free_region(bitmap, bits, order) Find and allocate bit region
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* bitmap_release_region(bitmap, pos, order) Free specified bit region
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* bitmap_allocate_region(bitmap, pos, order) Allocate specified bit region
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* bitmap_print_to_pagebuf(list, buf, mask, nbits) Print bitmap src as list/hex
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*/
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/*
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@@ -96,10 +93,10 @@ extern int __bitmap_equal(const unsigned long *bitmap1,
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const unsigned long *bitmap2, unsigned int nbits);
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extern void __bitmap_complement(unsigned long *dst, const unsigned long *src,
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unsigned int nbits);
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extern void __bitmap_shift_right(unsigned long *dst,
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const unsigned long *src, int shift, int bits);
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extern void __bitmap_shift_left(unsigned long *dst,
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const unsigned long *src, int shift, int bits);
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extern void __bitmap_shift_right(unsigned long *dst, const unsigned long *src,
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unsigned int shift, unsigned int nbits);
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extern void __bitmap_shift_left(unsigned long *dst, const unsigned long *src,
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unsigned int shift, unsigned int nbits);
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extern int __bitmap_and(unsigned long *dst, const unsigned long *bitmap1,
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const unsigned long *bitmap2, unsigned int nbits);
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extern void __bitmap_or(unsigned long *dst, const unsigned long *bitmap1,
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@@ -147,71 +144,67 @@ bitmap_find_next_zero_area(unsigned long *map,
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align_mask, 0);
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}
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extern int bitmap_scnprintf(char *buf, unsigned int len,
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const unsigned long *src, int nbits);
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extern int __bitmap_parse(const char *buf, unsigned int buflen, int is_user,
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unsigned long *dst, int nbits);
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extern int bitmap_parse_user(const char __user *ubuf, unsigned int ulen,
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unsigned long *dst, int nbits);
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extern int bitmap_scnlistprintf(char *buf, unsigned int len,
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const unsigned long *src, int nbits);
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extern int bitmap_parselist(const char *buf, unsigned long *maskp,
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int nmaskbits);
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extern int bitmap_parselist_user(const char __user *ubuf, unsigned int ulen,
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unsigned long *dst, int nbits);
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extern void bitmap_remap(unsigned long *dst, const unsigned long *src,
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const unsigned long *old, const unsigned long *new, int bits);
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const unsigned long *old, const unsigned long *new, unsigned int nbits);
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extern int bitmap_bitremap(int oldbit,
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const unsigned long *old, const unsigned long *new, int bits);
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extern void bitmap_onto(unsigned long *dst, const unsigned long *orig,
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const unsigned long *relmap, int bits);
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const unsigned long *relmap, unsigned int bits);
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extern void bitmap_fold(unsigned long *dst, const unsigned long *orig,
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int sz, int bits);
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unsigned int sz, unsigned int nbits);
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extern int bitmap_find_free_region(unsigned long *bitmap, unsigned int bits, int order);
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extern void bitmap_release_region(unsigned long *bitmap, unsigned int pos, int order);
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extern int bitmap_allocate_region(unsigned long *bitmap, unsigned int pos, int order);
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extern void bitmap_copy_le(void *dst, const unsigned long *src, int nbits);
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extern int bitmap_ord_to_pos(const unsigned long *bitmap, int n, int bits);
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#ifdef __BIG_ENDIAN
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extern void bitmap_copy_le(unsigned long *dst, const unsigned long *src, unsigned int nbits);
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#else
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#define bitmap_copy_le bitmap_copy
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#endif
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extern unsigned int bitmap_ord_to_pos(const unsigned long *bitmap, unsigned int ord, unsigned int nbits);
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extern int bitmap_print_to_pagebuf(bool list, char *buf,
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const unsigned long *maskp, int nmaskbits);
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#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) % BITS_PER_LONG))
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#define BITMAP_LAST_WORD_MASK(nbits) \
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( \
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((nbits) % BITS_PER_LONG) ? \
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(1UL<<((nbits) % BITS_PER_LONG))-1 : ~0UL \
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)
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#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) & (BITS_PER_LONG - 1)))
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#define BITMAP_LAST_WORD_MASK(nbits) (~0UL >> (-(nbits) & (BITS_PER_LONG - 1)))
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#define small_const_nbits(nbits) \
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(__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG)
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static inline void bitmap_zero(unsigned long *dst, int nbits)
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static inline void bitmap_zero(unsigned long *dst, unsigned int nbits)
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{
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if (small_const_nbits(nbits))
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*dst = 0UL;
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else {
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int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
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unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
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memset(dst, 0, len);
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}
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}
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static inline void bitmap_fill(unsigned long *dst, int nbits)
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static inline void bitmap_fill(unsigned long *dst, unsigned int nbits)
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{
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size_t nlongs = BITS_TO_LONGS(nbits);
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unsigned int nlongs = BITS_TO_LONGS(nbits);
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if (!small_const_nbits(nbits)) {
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int len = (nlongs - 1) * sizeof(unsigned long);
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unsigned int len = (nlongs - 1) * sizeof(unsigned long);
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memset(dst, 0xff, len);
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}
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dst[nlongs - 1] = BITMAP_LAST_WORD_MASK(nbits);
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}
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static inline void bitmap_copy(unsigned long *dst, const unsigned long *src,
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int nbits)
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unsigned int nbits)
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{
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if (small_const_nbits(nbits))
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*dst = *src;
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else {
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int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
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unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
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memcpy(dst, src, len);
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}
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}
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@@ -290,41 +283,41 @@ static inline int bitmap_empty(const unsigned long *src, unsigned nbits)
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{
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if (small_const_nbits(nbits))
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return ! (*src & BITMAP_LAST_WORD_MASK(nbits));
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else
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return __bitmap_empty(src, nbits);
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return find_first_bit(src, nbits) == nbits;
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}
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static inline int bitmap_full(const unsigned long *src, unsigned int nbits)
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{
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if (small_const_nbits(nbits))
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return ! (~(*src) & BITMAP_LAST_WORD_MASK(nbits));
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else
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return __bitmap_full(src, nbits);
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return find_first_zero_bit(src, nbits) == nbits;
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}
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static inline int bitmap_weight(const unsigned long *src, unsigned int nbits)
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static __always_inline int bitmap_weight(const unsigned long *src, unsigned int nbits)
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{
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if (small_const_nbits(nbits))
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return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits));
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return __bitmap_weight(src, nbits);
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}
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static inline void bitmap_shift_right(unsigned long *dst,
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const unsigned long *src, int n, int nbits)
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static inline void bitmap_shift_right(unsigned long *dst, const unsigned long *src,
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unsigned int shift, int nbits)
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{
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if (small_const_nbits(nbits))
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*dst = (*src & BITMAP_LAST_WORD_MASK(nbits)) >> n;
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*dst = (*src & BITMAP_LAST_WORD_MASK(nbits)) >> shift;
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else
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__bitmap_shift_right(dst, src, n, nbits);
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__bitmap_shift_right(dst, src, shift, nbits);
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}
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static inline void bitmap_shift_left(unsigned long *dst,
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const unsigned long *src, int n, int nbits)
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static inline void bitmap_shift_left(unsigned long *dst, const unsigned long *src,
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unsigned int shift, unsigned int nbits)
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{
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if (small_const_nbits(nbits))
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*dst = (*src << n) & BITMAP_LAST_WORD_MASK(nbits);
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*dst = (*src << shift) & BITMAP_LAST_WORD_MASK(nbits);
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else
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__bitmap_shift_left(dst, src, n, nbits);
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__bitmap_shift_left(dst, src, shift, nbits);
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}
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static inline int bitmap_parse(const char *buf, unsigned int buflen,
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