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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_SCORE_CACHEFLUSH_H
3#define _ASM_SCORE_CACHEFLUSH_H
4
5/* Keep includes the same across arches. */
6#include <linux/mm.h>
7
8extern void flush_cache_all(void);
9extern void flush_cache_mm(struct mm_struct *mm);
10extern void flush_cache_range(struct vm_area_struct *vma,
11 unsigned long start, unsigned long end);
12extern void flush_cache_page(struct vm_area_struct *vma,
13 unsigned long page, unsigned long pfn);
14extern void flush_cache_sigtramp(unsigned long addr);
15extern void flush_icache_all(void);
16extern void flush_icache_range(unsigned long start, unsigned long end);
17extern void flush_dcache_range(unsigned long start, unsigned long end);
18extern void flush_dcache_page(struct page *page);
19
20#define PG_dcache_dirty PG_arch_1
21
22#define flush_cache_dup_mm(mm) do {} while (0)
23#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
24#define flush_dcache_mmap_lock(mapping) do {} while (0)
25#define flush_dcache_mmap_unlock(mapping) do {} while (0)
26#define flush_cache_vmap(start, end) do {} while (0)
27#define flush_cache_vunmap(start, end) do {} while (0)
28
29static inline void flush_icache_page(struct vm_area_struct *vma,
30 struct page *page)
31{
32 if (vma->vm_flags & VM_EXEC) {
33 void *v = page_address(page);
34 flush_icache_range((unsigned long) v,
35 (unsigned long) v + PAGE_SIZE);
36 }
37}
38
39#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
40 memcpy(dst, src, len)
41
42#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
43 do { \
44 memcpy(dst, src, len); \
45 if ((vma->vm_flags & VM_EXEC)) \
46 flush_cache_page(vma, vaddr, page_to_pfn(page));\
47 } while (0)
48
49#endif /* _ASM_SCORE_CACHEFLUSH_H */