1 /* SPDX-License-Identifier: GPL-2.0-only */ 1
2
3 #ifndef __ASM_CPUCAPS_H
4 #define __ASM_CPUCAPS_H
5
6 #include <asm/cpucap-defs.h>
7
8 #ifndef __ASSEMBLY__
9 #include <linux/types.h>
10 /*
11 * Check whether a cpucap is possible at compi
12 */
13 static __always_inline bool
14 cpucap_is_possible(const unsigned int cap)
15 {
16 compiletime_assert(__builtin_constant_
17 "cap must be a cons
18 compiletime_assert(cap < ARM64_NCAPS,
19 "cap must be < ARM6
20
21 switch (cap) {
22 case ARM64_HAS_PAN:
23 return IS_ENABLED(CONFIG_ARM64
24 case ARM64_HAS_EPAN:
25 return IS_ENABLED(CONFIG_ARM64
26 case ARM64_SVE:
27 return IS_ENABLED(CONFIG_ARM64
28 case ARM64_SME:
29 case ARM64_SME2:
30 case ARM64_SME_FA64:
31 return IS_ENABLED(CONFIG_ARM64
32 case ARM64_HAS_CNP:
33 return IS_ENABLED(CONFIG_ARM64
34 case ARM64_HAS_ADDRESS_AUTH:
35 case ARM64_HAS_GENERIC_AUTH:
36 return IS_ENABLED(CONFIG_ARM64
37 case ARM64_HAS_GIC_PRIO_MASKING:
38 return IS_ENABLED(CONFIG_ARM64
39 case ARM64_MTE:
40 return IS_ENABLED(CONFIG_ARM64
41 case ARM64_BTI:
42 return IS_ENABLED(CONFIG_ARM64
43 case ARM64_HAS_TLB_RANGE:
44 return IS_ENABLED(CONFIG_ARM64
45 case ARM64_UNMAP_KERNEL_AT_EL0:
46 return IS_ENABLED(CONFIG_UNMAP
47 case ARM64_WORKAROUND_843419:
48 return IS_ENABLED(CONFIG_ARM64
49 case ARM64_WORKAROUND_1742098:
50 return IS_ENABLED(CONFIG_ARM64
51 case ARM64_WORKAROUND_2645198:
52 return IS_ENABLED(CONFIG_ARM64
53 case ARM64_WORKAROUND_2658417:
54 return IS_ENABLED(CONFIG_ARM64
55 case ARM64_WORKAROUND_CAVIUM_23154:
56 return IS_ENABLED(CONFIG_CAVIU
57 case ARM64_WORKAROUND_NVIDIA_CARMEL_CN
58 return IS_ENABLED(CONFIG_NVIDI
59 case ARM64_WORKAROUND_REPEAT_TLBI:
60 return IS_ENABLED(CONFIG_ARM64
61 case ARM64_WORKAROUND_SPECULATIVE_SSBS
62 return IS_ENABLED(CONFIG_ARM64
63 }
64
65 return true;
66 }
67 #endif /* __ASSEMBLY__ */
68
69 #endif /* __ASM_CPUCAPS_H */
70
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