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ebabbf58 | 1 | /* |
c0c0989a | 2 | * SPDX-License-Identifier: LGPL-2.1-only |
ebabbf58 MD |
3 | * |
4 | * Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
ebabbf58 MD |
5 | */ |
6 | ||
c0c0989a MJ |
7 | #ifndef _LIBCOUNTER_SMP_H |
8 | #define _LIBCOUNTER_SMP_H | |
9 | ||
864a1eda | 10 | #include "ust-helper.h" |
3d5db36a | 11 | |
ebabbf58 MD |
12 | /* |
13 | * 4kB of per-cpu data available. | |
14 | */ | |
15 | #define LTTNG_COUNTER_PER_CPU_MEM_SIZE 4096 | |
16 | ||
3d5db36a | 17 | LTTNG_HIDDEN |
ebabbf58 | 18 | extern int __lttng_counter_num_possible_cpus; |
3d5db36a | 19 | LTTNG_HIDDEN |
ebabbf58 MD |
20 | extern void _lttng_counter_get_num_possible_cpus(void); |
21 | ||
22 | static inline | |
23 | int lttng_counter_num_possible_cpus(void) | |
24 | { | |
25 | if (!__lttng_counter_num_possible_cpus) | |
26 | _lttng_counter_get_num_possible_cpus(); | |
27 | return __lttng_counter_num_possible_cpus; | |
28 | } | |
29 | ||
30 | #define lttng_counter_for_each_possible_cpu(cpu) \ | |
31 | for ((cpu) = 0; (cpu) < lttng_counter_num_possible_cpus(); (cpu)++) | |
32 | ||
33 | #endif /* _LIBCOUNTER_SMP_H */ |