1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef _ASM_GENERIC_CACHEFLUSH_H
3*4882a593Smuzhiyun #define _ASM_GENERIC_CACHEFLUSH_H
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun struct mm_struct;
6*4882a593Smuzhiyun struct vm_area_struct;
7*4882a593Smuzhiyun struct page;
8*4882a593Smuzhiyun struct address_space;
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun /*
11*4882a593Smuzhiyun * The cache doesn't need to be flushed when TLB entries change when
12*4882a593Smuzhiyun * the cache is mapped to physical memory, not virtual memory
13*4882a593Smuzhiyun */
14*4882a593Smuzhiyun #ifndef flush_cache_all
flush_cache_all(void)15*4882a593Smuzhiyun static inline void flush_cache_all(void)
16*4882a593Smuzhiyun {
17*4882a593Smuzhiyun }
18*4882a593Smuzhiyun #endif
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun #ifndef flush_cache_mm
flush_cache_mm(struct mm_struct * mm)21*4882a593Smuzhiyun static inline void flush_cache_mm(struct mm_struct *mm)
22*4882a593Smuzhiyun {
23*4882a593Smuzhiyun }
24*4882a593Smuzhiyun #endif
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun #ifndef flush_cache_dup_mm
flush_cache_dup_mm(struct mm_struct * mm)27*4882a593Smuzhiyun static inline void flush_cache_dup_mm(struct mm_struct *mm)
28*4882a593Smuzhiyun {
29*4882a593Smuzhiyun }
30*4882a593Smuzhiyun #endif
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun #ifndef flush_cache_range
flush_cache_range(struct vm_area_struct * vma,unsigned long start,unsigned long end)33*4882a593Smuzhiyun static inline void flush_cache_range(struct vm_area_struct *vma,
34*4882a593Smuzhiyun unsigned long start,
35*4882a593Smuzhiyun unsigned long end)
36*4882a593Smuzhiyun {
37*4882a593Smuzhiyun }
38*4882a593Smuzhiyun #endif
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun #ifndef flush_cache_page
flush_cache_page(struct vm_area_struct * vma,unsigned long vmaddr,unsigned long pfn)41*4882a593Smuzhiyun static inline void flush_cache_page(struct vm_area_struct *vma,
42*4882a593Smuzhiyun unsigned long vmaddr,
43*4882a593Smuzhiyun unsigned long pfn)
44*4882a593Smuzhiyun {
45*4882a593Smuzhiyun }
46*4882a593Smuzhiyun #endif
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun #ifndef ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
flush_dcache_page(struct page * page)49*4882a593Smuzhiyun static inline void flush_dcache_page(struct page *page)
50*4882a593Smuzhiyun {
51*4882a593Smuzhiyun }
52*4882a593Smuzhiyun #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
53*4882a593Smuzhiyun #endif
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun #ifndef flush_dcache_mmap_lock
flush_dcache_mmap_lock(struct address_space * mapping)57*4882a593Smuzhiyun static inline void flush_dcache_mmap_lock(struct address_space *mapping)
58*4882a593Smuzhiyun {
59*4882a593Smuzhiyun }
60*4882a593Smuzhiyun #endif
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun #ifndef flush_dcache_mmap_unlock
flush_dcache_mmap_unlock(struct address_space * mapping)63*4882a593Smuzhiyun static inline void flush_dcache_mmap_unlock(struct address_space *mapping)
64*4882a593Smuzhiyun {
65*4882a593Smuzhiyun }
66*4882a593Smuzhiyun #endif
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun #ifndef flush_icache_range
flush_icache_range(unsigned long start,unsigned long end)69*4882a593Smuzhiyun static inline void flush_icache_range(unsigned long start, unsigned long end)
70*4882a593Smuzhiyun {
71*4882a593Smuzhiyun }
72*4882a593Smuzhiyun #endif
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun #ifndef flush_icache_user_range
75*4882a593Smuzhiyun #define flush_icache_user_range flush_icache_range
76*4882a593Smuzhiyun #endif
77*4882a593Smuzhiyun
78*4882a593Smuzhiyun #ifndef flush_icache_page
flush_icache_page(struct vm_area_struct * vma,struct page * page)79*4882a593Smuzhiyun static inline void flush_icache_page(struct vm_area_struct *vma,
80*4882a593Smuzhiyun struct page *page)
81*4882a593Smuzhiyun {
82*4882a593Smuzhiyun }
83*4882a593Smuzhiyun #endif
84*4882a593Smuzhiyun
85*4882a593Smuzhiyun #ifndef flush_icache_user_page
flush_icache_user_page(struct vm_area_struct * vma,struct page * page,unsigned long addr,int len)86*4882a593Smuzhiyun static inline void flush_icache_user_page(struct vm_area_struct *vma,
87*4882a593Smuzhiyun struct page *page,
88*4882a593Smuzhiyun unsigned long addr, int len)
89*4882a593Smuzhiyun {
90*4882a593Smuzhiyun }
91*4882a593Smuzhiyun #endif
92*4882a593Smuzhiyun
93*4882a593Smuzhiyun #ifndef flush_cache_vmap
flush_cache_vmap(unsigned long start,unsigned long end)94*4882a593Smuzhiyun static inline void flush_cache_vmap(unsigned long start, unsigned long end)
95*4882a593Smuzhiyun {
96*4882a593Smuzhiyun }
97*4882a593Smuzhiyun #endif
98*4882a593Smuzhiyun
99*4882a593Smuzhiyun #ifndef flush_cache_vunmap
flush_cache_vunmap(unsigned long start,unsigned long end)100*4882a593Smuzhiyun static inline void flush_cache_vunmap(unsigned long start, unsigned long end)
101*4882a593Smuzhiyun {
102*4882a593Smuzhiyun }
103*4882a593Smuzhiyun #endif
104*4882a593Smuzhiyun
105*4882a593Smuzhiyun #ifndef copy_to_user_page
106*4882a593Smuzhiyun #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
107*4882a593Smuzhiyun do { \
108*4882a593Smuzhiyun memcpy(dst, src, len); \
109*4882a593Smuzhiyun flush_icache_user_page(vma, page, vaddr, len); \
110*4882a593Smuzhiyun } while (0)
111*4882a593Smuzhiyun #endif
112*4882a593Smuzhiyun
113*4882a593Smuzhiyun #ifndef copy_from_user_page
114*4882a593Smuzhiyun #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
115*4882a593Smuzhiyun memcpy(dst, src, len)
116*4882a593Smuzhiyun #endif
117*4882a593Smuzhiyun
118*4882a593Smuzhiyun #endif /* _ASM_GENERIC_CACHEFLUSH_H */
119