1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_GENERIC_CACHEFLUSH_H
3 #define _ASM_GENERIC_CACHEFLUSH_H
5 #include <linux/instrumented.h>
13 * The cache doesn't need to be flushed when TLB entries change when
14 * the cache is mapped to physical memory, not virtual memory
16 #ifndef flush_cache_all
17 static inline void flush_cache_all(void)
22 #ifndef flush_cache_mm
23 static inline void flush_cache_mm(struct mm_struct *mm)
28 #ifndef flush_cache_dup_mm
29 static inline void flush_cache_dup_mm(struct mm_struct *mm)
34 #ifndef flush_cache_range
35 static inline void flush_cache_range(struct vm_area_struct *vma,
42 #ifndef flush_cache_page
43 static inline void flush_cache_page(struct vm_area_struct *vma,
50 #ifndef ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
51 static inline void flush_dcache_page(struct page *page)
55 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
58 #ifndef flush_dcache_mmap_lock
59 static inline void flush_dcache_mmap_lock(struct address_space *mapping)
64 #ifndef flush_dcache_mmap_unlock
65 static inline void flush_dcache_mmap_unlock(struct address_space *mapping)
70 #ifndef flush_icache_range
71 static inline void flush_icache_range(unsigned long start, unsigned long end)
76 #ifndef flush_icache_user_range
77 #define flush_icache_user_range flush_icache_range
80 #ifndef flush_icache_page
81 static inline void flush_icache_page(struct vm_area_struct *vma,
87 #ifndef flush_icache_user_page
88 static inline void flush_icache_user_page(struct vm_area_struct *vma,
90 unsigned long addr, int len)
95 #ifndef flush_cache_vmap
96 static inline void flush_cache_vmap(unsigned long start, unsigned long end)
101 #ifndef flush_cache_vunmap
102 static inline void flush_cache_vunmap(unsigned long start, unsigned long end)
107 #ifndef copy_to_user_page
108 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
110 instrument_copy_to_user((void __user *)dst, src, len); \
111 memcpy(dst, src, len); \
112 flush_icache_user_page(vma, page, vaddr, len); \
117 #ifndef copy_from_user_page
118 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
120 instrument_copy_from_user_before(dst, (void __user *)src, \
122 memcpy(dst, src, len); \
123 instrument_copy_from_user_after(dst, (void __user *)src, len, \
128 #endif /* _ASM_GENERIC_CACHEFLUSH_H */