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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 1 | #ifndef __ASM_GENERIC_CPUMASK_ARRAY_H |
| 2 | #define __ASM_GENERIC_CPUMASK_ARRAY_H |
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| 3 | |||
| 4 | /* |
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| 5 | * Array-based cpu bitmaps. An array of unsigned longs is used to contain |
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| 6 | * the bitmap, and then contained in a structure so it may be passed by |
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| 7 | * value. |
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| 8 | */ |
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| 9 | |||
| 10 | #define CPU_ARRAY_SIZE BITS_TO_LONGS(NR_CPUS) |
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| 11 | |||
| 12 | #define cpu_set(cpu, map) set_bit(cpu, (map).mask) |
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| 13 | #define cpu_clear(cpu, map) clear_bit(cpu, (map).mask) |
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| 14 | #define cpu_isset(cpu, map) test_bit(cpu, (map).mask) |
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| 15 | #define cpu_test_and_set(cpu, map) test_and_set_bit(cpu, (map).mask) |
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| 16 | |||
| 17 | #define cpus_and(dst,src1,src2) bitmap_and((dst).mask,(src1).mask, (src2).mask, NR_CPUS) |
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| 18 | #define cpus_or(dst,src1,src2) bitmap_or((dst).mask, (src1).mask, (src2).mask, NR_CPUS) |
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| 19 | #define cpus_clear(map) bitmap_clear((map).mask, NR_CPUS) |
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| 20 | #define cpus_complement(map) bitmap_complement((map).mask, NR_CPUS) |
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| 21 | #define cpus_equal(map1, map2) bitmap_equal((map1).mask, (map2).mask, NR_CPUS) |
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| 22 | #define cpus_empty(map) bitmap_empty(map.mask, NR_CPUS) |
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| 23 | #define cpus_weight(map) bitmap_weight((map).mask, NR_CPUS) |
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| 24 | #define cpus_shift_right(d, s, n) bitmap_shift_right((d).mask, (s).mask, n, NR_CPUS) |
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| 25 | #define cpus_shift_left(d, s, n) bitmap_shift_left((d).mask, (s).mask, n, NR_CPUS) |
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| 26 | #define first_cpu(map) find_first_bit((map).mask, NR_CPUS) |
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| 27 | #define next_cpu(cpu, map) find_next_bit((map).mask, NR_CPUS, cpu + 1) |
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| 28 | |||
| 29 | /* only ever use this for things that are _never_ used on large boxen */ |
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| 30 | #define cpus_coerce(map) ((map).mask[0]) |
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| 31 | #define cpus_promote(map) ({ cpumask_t __cpu_mask = CPU_MASK_NONE;\ |
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| 32 | __cpu_mask.mask[0] = map; \ |
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| 33 | __cpu_mask; \ |
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| 34 | }) |
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| 35 | #define cpumask_of_cpu(cpu) ({ cpumask_t __cpu_mask = CPU_MASK_NONE;\ |
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| 36 | cpu_set(cpu, __cpu_mask); \ |
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| 37 | __cpu_mask; \ |
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| 38 | }) |
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| 39 | #define any_online_cpu(map) \ |
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| 40 | ({ \ |
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| 41 | cpumask_t __tmp__; \ |
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| 42 | cpus_and(__tmp__, map, cpu_online_map); \ |
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| 43 | find_first_bit(__tmp__.mask, NR_CPUS); \ |
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| 44 | }) |
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| 45 | |||
| 46 | |||
| 47 | /* |
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| 48 | * um, these need to be usable as static initializers |
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| 49 | */ |
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| 50 | #define CPU_MASK_ALL { {[0 ... CPU_ARRAY_SIZE-1] = ~0UL} } |
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| 51 | #define CPU_MASK_NONE { {[0 ... CPU_ARRAY_SIZE-1] = 0UL} } |
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| 52 | |||
| 53 | #endif /* __ASM_GENERIC_CPUMASK_ARRAY_H */ |