include/asm-generic/bitops/le.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_GENERIC_BITOPS_LE_H_
   3 #define _ASM_GENERIC_BITOPS_LE_H_
   4
   5 #include <asm/types.h>
   6 #include <asm/byteorder.h>
   7
   8 #if defined(__LITTLE_ENDIAN)
   9
  10 #define BITOP_LE_SWIZZLE        0
  11
  12 static inline unsigned long find_next_zero_bit_le(const void *addr,
  13                 unsigned long size, unsigned long offset)
  14 {
  15         return find_next_zero_bit(addr, size, offset);
  16 }
  17
  18 static inline unsigned long find_next_bit_le(const void *addr,
  19                 unsigned long size, unsigned long offset)
  20 {
  21         return find_next_bit(addr, size, offset);
  22 }
  23
  24 static inline unsigned long find_first_zero_bit_le(const void *addr,
  25                 unsigned long size)
  26 {
  27         return find_first_zero_bit(addr, size);
  28 }
  29
  30 #elif defined(__BIG_ENDIAN)
  31
  32 #define BITOP_LE_SWIZZLE        ((BITS_PER_LONG-1) & ~0x7)
  33
  34 #ifndef find_next_zero_bit_le
  35 extern unsigned long find_next_zero_bit_le(const void *addr,
  36                 unsigned long size, unsigned long offset);
  37 #endif
  38
  39 #ifndef find_next_bit_le
  40 extern unsigned long find_next_bit_le(const void *addr,
  41                 unsigned long size, unsigned long offset);
  42 #endif
  43
  44 #ifndef find_first_zero_bit_le
  45 #define find_first_zero_bit_le(addr, size) \
  46         find_next_zero_bit_le((addr), (size), 0)
  47 #endif
  48
  49 #else
  50 #error "Please fix <asm/byteorder.h>"
  51 #endif
  52
  53 static inline int test_bit_le(int nr, const void *addr)
  54 {
  55         return test_bit(nr ^ BITOP_LE_SWIZZLE, addr);
  56 }
  57
  58 static inline void set_bit_le(int nr, void *addr)
  59 {
  60         set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
  61 }
  62
  63 static inline void clear_bit_le(int nr, void *addr)
  64 {
  65         clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
  66 }
  67
  68 static inline void __set_bit_le(int nr, void *addr)
  69 {
  70         __set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
  71 }
  72
  73 static inline void __clear_bit_le(int nr, void *addr)
  74 {
  75         __clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
  76 }
  77
  78 static inline int test_and_set_bit_le(int nr, void *addr)
  79 {
  80         return test_and_set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
  81 }
  82
  83 static inline int test_and_clear_bit_le(int nr, void *addr)
  84 {
  85         return test_and_clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
  86 }
  87
  88 static inline int __test_and_set_bit_le(int nr, void *addr)
  89 {
  90         return __test_and_set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
  91 }
  92
  93 static inline int __test_and_clear_bit_le(int nr, void *addr)
  94 {
  95         return __test_and_clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
  96 }
  97
  98 #endif /* _ASM_GENERIC_BITOPS_LE_H_ */