Thomas Gleixner | d2912cb | 2019-06-04 10:11:33 +0200 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
Michael Ellerman | 938f846 | 2017-07-06 15:35:52 -0700 | [diff] [blame] | 2 | /* |
| 3 | * Copyright 2017, Michael Ellerman, IBM Corporation. |
Michael Ellerman | 938f846 | 2017-07-06 15:35:52 -0700 | [diff] [blame] | 4 | */ |
| 5 | #ifndef _LINUX_SET_MEMORY_H_ |
| 6 | #define _LINUX_SET_MEMORY_H_ |
| 7 | |
| 8 | #ifdef CONFIG_ARCH_HAS_SET_MEMORY |
| 9 | #include <asm/set_memory.h> |
| 10 | #else |
| 11 | static inline int set_memory_ro(unsigned long addr, int numpages) { return 0; } |
| 12 | static inline int set_memory_rw(unsigned long addr, int numpages) { return 0; } |
| 13 | static inline int set_memory_x(unsigned long addr, int numpages) { return 0; } |
| 14 | static inline int set_memory_nx(unsigned long addr, int numpages) { return 0; } |
| 15 | #endif |
| 16 | |
Rick Edgecombe | d253ca0 | 2019-04-25 17:11:34 -0700 | [diff] [blame] | 17 | #ifndef CONFIG_ARCH_HAS_SET_DIRECT_MAP |
| 18 | static inline int set_direct_map_invalid_noflush(struct page *page) |
| 19 | { |
| 20 | return 0; |
| 21 | } |
| 22 | static inline int set_direct_map_default_noflush(struct page *page) |
| 23 | { |
| 24 | return 0; |
| 25 | } |
| 26 | #endif |
| 27 | |
Dan Williams | 284ce40 | 2018-07-13 21:50:32 -0700 | [diff] [blame] | 28 | #ifndef set_mce_nospec |
| 29 | static inline int set_mce_nospec(unsigned long pfn) |
| 30 | { |
| 31 | return 0; |
| 32 | } |
| 33 | #endif |
| 34 | |
| 35 | #ifndef clear_mce_nospec |
| 36 | static inline int clear_mce_nospec(unsigned long pfn) |
| 37 | { |
| 38 | return 0; |
| 39 | } |
| 40 | #endif |
| 41 | |
Christoph Hellwig | b7fa074 | 2018-03-19 11:38:22 +0100 | [diff] [blame] | 42 | #ifndef CONFIG_ARCH_HAS_MEM_ENCRYPT |
| 43 | static inline int set_memory_encrypted(unsigned long addr, int numpages) |
| 44 | { |
| 45 | return 0; |
| 46 | } |
| 47 | |
| 48 | static inline int set_memory_decrypted(unsigned long addr, int numpages) |
| 49 | { |
| 50 | return 0; |
| 51 | } |
| 52 | #endif /* CONFIG_ARCH_HAS_MEM_ENCRYPT */ |
| 53 | |
Michael Ellerman | 938f846 | 2017-07-06 15:35:52 -0700 | [diff] [blame] | 54 | #endif /* _LINUX_SET_MEMORY_H_ */ |