include/asm-generic/cpumask_up.h

   1 #ifndef __ASM_GENERIC_CPUMASK_UP_H
   2 #define __ASM_GENERIC_CPUMASK_UP_H
   3
   4 #define cpus_coerce(map)        (map)
   5
   6 #define cpu_set(cpu, map)               do { (void)(cpu); cpus_coerce(map) = 1UL; } while (0)
   7 #define cpu_clear(cpu, map)             do { (void)(cpu); cpus_coerce(map) = 0UL; } while (0)
   8 #define cpu_isset(cpu, map)             ((void)(cpu), cpus_coerce(map) != 0UL)
   9 #define cpu_test_and_set(cpu, map)      ((void)(cpu), test_and_set_bit(0, &(map)))
  10
  11 #define cpus_and(dst, src1, src2)                                       \
  12         do {                                                            \
  13                 if (cpus_coerce(src1) && cpus_coerce(src2))             \
  14                         cpus_coerce(dst) = 1UL;                         \
  15                 else                                                    \
  16                         cpus_coerce(dst) = 0UL;                         \
  17         } while (0)
  18
  19 #define cpus_or(dst, src1, src2)                                        \
  20         do {                                                            \
  21                 if (cpus_coerce(src1) || cpus_coerce(src2))             \
  22                         cpus_coerce(dst) = 1UL;                         \
  23                 else                                                    \
  24                         cpus_coerce(dst) = 0UL;                         \
  25         } while (0)
  26
  27 #define cpus_clear(map)                 do { cpus_coerce(map) = 0UL; } while (0)
  28
  29 #define cpus_complement(map)                                            \
  30         do {                                                            \
  31                 cpus_coerce(map) = !cpus_coerce(map);                   \
  32         } while (0)
  33
  34 #define cpus_equal(map1, map2)          (cpus_coerce(map1) == cpus_coerce(map2))
  35 #define cpus_empty(map)                 (cpus_coerce(map) == 0UL)
  36 #define cpus_addr(map)                  (&(map))
  37 #define cpus_weight(map)                (cpus_coerce(map) ? 1UL : 0UL)
  38 #define cpus_shift_right(d, s, n)       do { cpus_coerce(d) = 0UL; } while (0)
  39 #define cpus_shift_left(d, s, n)        do { cpus_coerce(d) = 0UL; } while (0)
  40 #define first_cpu(map)                  (cpus_coerce(map) ? 0 : 1)
  41 #define next_cpu(cpu, map)              1
  42
  43 /* only ever use this for things that are _never_ used on large boxen */
  44 #define cpus_promote(map)                                               \
  45         ({                                                              \
  46                 cpumask_t __tmp__;                                      \
  47                 cpus_coerce(__tmp__) = map;                             \
  48                 __tmp__;                                                \
  49         })
  50 #define cpumask_of_cpu(cpu)             ((void)(cpu), cpus_promote(1))
  51 #define any_online_cpu(map)             (cpus_coerce(map) ? 0 : 1)
  52
  53 /*
  54  * um, these need to be usable as static initializers
  55  */
  56 #define CPU_MASK_ALL    1UL
  57 #define CPU_MASK_NONE   0UL
  58
  59 #endif /* __ASM_GENERIC_CPUMASK_UP_H */