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a101fa10 MD |
1 | /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) |
2 | * | |
3 | * counter/config.h | |
4 | * | |
5 | * LTTng Counters Configuration | |
6 | * | |
7 | * Copyright (C) 2020 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
8 | */ | |
9 | ||
10 | #ifndef _LTTNG_COUNTER_CONFIG_H | |
11 | #define _LTTNG_COUNTER_CONFIG_H | |
12 | ||
13 | #include <linux/types.h> | |
14 | #include <linux/percpu.h> | |
15 | ||
16 | enum lib_counter_config_alloc { | |
17 | COUNTER_ALLOC_PER_CPU = (1 << 0), | |
18 | COUNTER_ALLOC_GLOBAL = (1 << 1), | |
19 | }; | |
20 | ||
21 | enum lib_counter_config_sync { | |
22 | COUNTER_SYNC_PER_CPU, | |
23 | COUNTER_SYNC_GLOBAL, | |
24 | }; | |
25 | ||
26 | struct lib_counter_config { | |
27 | u32 alloc; /* enum lib_counter_config_alloc flags */ | |
28 | enum lib_counter_config_sync sync; | |
29 | enum { | |
30 | COUNTER_ARITHMETIC_MODULAR, | |
31 | COUNTER_ARITHMETIC_SATURATE, /* TODO */ | |
32 | } arithmetic; | |
33 | enum { | |
34 | COUNTER_SIZE_8_BIT = 1, | |
35 | COUNTER_SIZE_16_BIT = 2, | |
36 | COUNTER_SIZE_32_BIT = 4, | |
37 | COUNTER_SIZE_64_BIT = 8, | |
38 | } counter_size; | |
39 | }; | |
40 | ||
41 | #endif /* _LTTNG_COUNTER_CONFIG_H */ |