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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_POWERPC_PGTABLE_MASKS_H
3#define _ASM_POWERPC_PGTABLE_MASKS_H
4
5#ifndef _PAGE_NA
6#define _PAGE_NA 0
7#define _PAGE_NAX _PAGE_EXEC
8#define _PAGE_RO _PAGE_READ
9#define _PAGE_ROX (_PAGE_READ | _PAGE_EXEC)
10#define _PAGE_RW (_PAGE_READ | _PAGE_WRITE)
11#define _PAGE_RWX (_PAGE_READ | _PAGE_WRITE | _PAGE_EXEC)
12#endif
13
14/* Permission flags for kernel mappings */
15#ifndef _PAGE_KERNEL_RO
16#define _PAGE_KERNEL_RO _PAGE_RO
17#define _PAGE_KERNEL_ROX _PAGE_ROX
18#define _PAGE_KERNEL_RW (_PAGE_RW | _PAGE_DIRTY)
19#define _PAGE_KERNEL_RWX (_PAGE_RWX | _PAGE_DIRTY)
20#endif
21
22/* Permission masks used to generate the __P and __S table */
23#define PAGE_NONE __pgprot(_PAGE_BASE | _PAGE_NA)
24#define PAGE_EXECONLY_X __pgprot(_PAGE_BASE | _PAGE_NAX)
25#define PAGE_SHARED __pgprot(_PAGE_BASE | _PAGE_RW)
26#define PAGE_SHARED_X __pgprot(_PAGE_BASE | _PAGE_RWX)
27#define PAGE_COPY __pgprot(_PAGE_BASE | _PAGE_RO)
28#define PAGE_COPY_X __pgprot(_PAGE_BASE | _PAGE_ROX)
29#define PAGE_READONLY __pgprot(_PAGE_BASE | _PAGE_RO)
30#define PAGE_READONLY_X __pgprot(_PAGE_BASE | _PAGE_ROX)
31
32#endif /* _ASM_POWERPC_PGTABLE_MASKS_H */