63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ABI_CSKY_CACHEFLUSH_H
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#define __ABI_CSKY_CACHEFLUSH_H
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#include <linux/mm.h>
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#include <asm/string.h>
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#include <asm/cache.h>
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#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
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extern void flush_dcache_page(struct page *);
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#define flush_cache_mm(mm) dcache_wbinv_all()
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#define flush_cache_page(vma, page, pfn) cache_wbinv_all()
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#define flush_cache_dup_mm(mm) cache_wbinv_all()
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#define flush_dcache_mmap_lock(mapping) xa_lock_irq(&mapping->i_pages)
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#define flush_dcache_mmap_unlock(mapping) xa_unlock_irq(&mapping->i_pages)
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#define ARCH_IMPLEMENTS_FLUSH_KERNEL_VMAP_RANGE 1
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static inline void flush_kernel_vmap_range(void *addr, int size)
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{
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dcache_wbinv_all();
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}
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static inline void invalidate_kernel_vmap_range(void *addr, int size)
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{
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dcache_wbinv_all();
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}
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#define ARCH_HAS_FLUSH_ANON_PAGE
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static inline void flush_anon_page(struct vm_area_struct *vma,
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struct page *page, unsigned long vmaddr)
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{
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if (PageAnon(page))
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cache_wbinv_all();
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}
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/*
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* if (current_mm != vma->mm) cache_wbinv_range(start, end) will be broken.
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* Use cache_wbinv_all() here and need to be improved in future.
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*/
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extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end);
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#define flush_cache_vmap(start, end) cache_wbinv_all()
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#define flush_cache_vunmap(start, end) cache_wbinv_all()
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#define flush_icache_page(vma, page) do {} while (0);
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#define flush_icache_range(start, end) cache_wbinv_range(start, end)
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#define flush_icache_mm_range(mm, start, end) cache_wbinv_range(start, end)
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#define flush_icache_deferred(mm) do {} while (0);
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#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
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do { \
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memcpy(dst, src, len); \
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} while (0)
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#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
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do { \
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memcpy(dst, src, len); \
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cache_wbinv_all(); \
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} while (0)
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#endif /* __ABI_CSKY_CACHEFLUSH_H */
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