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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (C) 2023 Arm Ltd.
4 */
5
6#ifndef _ASM_ARM64_POR_H
7#define _ASM_ARM64_POR_H
8
9#include <asm/sysreg.h>
10
11#define POR_EL0_INIT POR_ELx_PERM_PREP(0, POE_RWX)
12
13static inline bool por_elx_allows_read(u64 por, u8 pkey)
14{
15 u8 perm = POR_ELx_PERM_GET(pkey, por);
16
17 return perm & POE_R;
18}
19
20static inline bool por_elx_allows_write(u64 por, u8 pkey)
21{
22 u8 perm = POR_ELx_PERM_GET(pkey, por);
23
24 return perm & POE_W;
25}
26
27static inline bool por_elx_allows_exec(u64 por, u8 pkey)
28{
29 u8 perm = POR_ELx_PERM_GET(pkey, por);
30
31 return perm & POE_X;
32}
33
34#endif /* _ASM_ARM64_POR_H */