1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /*
3 * Copyright 2023 Rivos, Inc
4 */
5
6 #ifndef _ASM_HWPROBE_H
7 #define _ASM_HWPROBE_H
8
9 #include <uapi/asm/hwprobe.h>
10
11 #define RISCV_HWPROBE_MAX_KEY 8
12
13 static inline bool riscv_hwprobe_key_is_valid(__s64 key)
14 {
15 return key >= 0 && key <= RISCV_HWPROBE_MAX_KEY;
16 }
17
18 static inline bool hwprobe_key_is_bitmask(__s64 key)
19 {
20 switch (key) {
21 case RISCV_HWPROBE_KEY_BASE_BEHAVIOR:
22 case RISCV_HWPROBE_KEY_IMA_EXT_0:
23 case RISCV_HWPROBE_KEY_CPUPERF_0:
24 return true;
25 }
26
27 return false;
28 }
29
30 static inline bool riscv_hwprobe_pair_cmp(struct riscv_hwprobe *pair,
31 struct riscv_hwprobe *other_pair)
32 {
33 if (pair->key != other_pair->key)
34 return false;
35
36 if (hwprobe_key_is_bitmask(pair->key))
37 return (pair->value & other_pair->value) == other_pair->value;
38
39 return pair->value == other_pair->value;
40 }
41
42 #endif
43
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