1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright 2017, Michael Ellerman, IBM Corporation. 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 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 28 #ifndef set_mce_nospec 29 static inline int set_mce_nospec(unsigned long pfn, bool unmap) 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 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 54 #endif /* _LINUX_SET_MEMORY_H_ */ 55