1/* SPDX-License-Identifier: GPL-2.0 */
2
3#ifndef __ABI_CSKY_CACHEFLUSH_H
4#define __ABI_CSKY_CACHEFLUSH_H
5
6#include <linux/mm.h>
7#include <asm/string.h>
8#include <asm/cache.h>
9
10#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
11extern void flush_dcache_page(struct page *);
12void flush_dcache_folio(struct folio *);
13#define flush_dcache_folio flush_dcache_folio
14
15#define flush_cache_mm(mm)			dcache_wbinv_all()
16#define flush_cache_page(vma, page, pfn)	cache_wbinv_all()
17#define flush_cache_dup_mm(mm)			cache_wbinv_all()
18
19#define flush_dcache_mmap_lock(mapping)		xa_lock_irq(&mapping->i_pages)
20#define flush_dcache_mmap_unlock(mapping)	xa_unlock_irq(&mapping->i_pages)
21
22#define ARCH_IMPLEMENTS_FLUSH_KERNEL_VMAP_RANGE 1
23static inline void flush_kernel_vmap_range(void *addr, int size)
24{
25	dcache_wbinv_all();
26}
27static inline void invalidate_kernel_vmap_range(void *addr, int size)
28{
29	dcache_wbinv_all();
30}
31
32#define ARCH_HAS_FLUSH_ANON_PAGE
33static inline void flush_anon_page(struct vm_area_struct *vma,
34			 struct page *page, unsigned long vmaddr)
35{
36	if (PageAnon(page))
37		cache_wbinv_all();
38}
39
40/*
41 * if (current_mm != vma->mm) cache_wbinv_range(start, end) will be broken.
42 * Use cache_wbinv_all() here and need to be improved in future.
43 */
44extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end);
45#define flush_cache_vmap(start, end)		cache_wbinv_all()
46#define flush_cache_vmap_early(start, end)	do { } while (0)
47#define flush_cache_vunmap(start, end)		cache_wbinv_all()
48
49#define flush_icache_range(start, end)		cache_wbinv_range(start, end)
50#define flush_icache_mm_range(mm, start, end)	cache_wbinv_range(start, end)
51#define flush_icache_deferred(mm)		do {} while (0);
52
53#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
54do { \
55	memcpy(dst, src, len); \
56} while (0)
57
58#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
59do { \
60	memcpy(dst, src, len); \
61	cache_wbinv_all(); \
62} while (0)
63
64#endif /* __ABI_CSKY_CACHEFLUSH_H */
65