| 1 | |
| 2 | * Copyright (C) 2003 Microtronix Datacom Ltd.
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| 3 | * Copyright (C) 2000-2002 Greg Ungerer <[email protected]>
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| 4 | *
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| 5 | * This file is subject to the terms and conditions of the GNU General Public
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| 6 | * License. See the file "COPYING" in the main directory of this archive
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| 7 | * for more details.
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| 8 |
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| 9 |
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| 10 | #ifndef _ASM_NIOS2_CACHEFLUSH_H
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| 11 | #define _ASM_NIOS2_CACHEFLUSH_H
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| 12 |
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| 13 | #include <linux/mm_types.h>
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| 14 |
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| 15 | |
| 16 | * This flag is used to indicate that the page pointed to by a pte is clean
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| 17 | * and does not require cleaning before returning it to the user.
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| 18 |
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| 19 | #define PG_dcache_clean PG_arch_1
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| 20 |
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| 21 | struct mm_struct;
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| 22 |
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| 23 | extern void flush_cache_all(void);
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| 24 | extern void flush_cache_mm(struct mm_struct *mm);
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| 25 | extern void flush_cache_dup_mm(struct mm_struct *mm);
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| 26 | extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
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| 27 | unsigned long end);
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| 28 | extern void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
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| 29 | unsigned long pfn);
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| 30 | #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
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| 31 | void flush_dcache_page(struct page *page);
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| 32 | void flush_dcache_folio(struct folio *folio);
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| 33 | #define flush_dcache_folio flush_dcache_folio
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| 34 |
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| 35 | extern void flush_icache_range(unsigned long start, unsigned long end);
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| 36 | void flush_icache_pages(struct vm_area_struct *vma, struct page *page,
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| 37 | unsigned int nr);
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| 38 | #define flush_icache_pages flush_icache_pages
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| 39 |
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| 40 | #define flush_cache_vmap(start, end) flush_dcache_range(start, end)
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| 41 | #define flush_cache_vmap_early(start, end) do { } while (0)
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| 42 | #define flush_cache_vunmap(start, end) flush_dcache_range(start, end)
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| 43 |
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| 44 | extern void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
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| 45 | unsigned long user_vaddr,
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| 46 | void *dst, void *src, int len);
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| 47 | extern void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
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| 48 | unsigned long user_vaddr,
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| 49 | void *dst, void *src, int len);
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| 50 |
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| 51 | extern void flush_dcache_range(unsigned long start, unsigned long end);
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| 52 | extern void invalidate_dcache_range(unsigned long start, unsigned long end);
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| 53 |
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| 54 | #define flush_dcache_mmap_lock(mapping) xa_lock_irq(&mapping->i_pages)
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| 55 | #define flush_dcache_mmap_unlock(mapping) xa_unlock_irq(&mapping->i_pages)
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| 56 | #define flush_dcache_mmap_lock_irqsave(mapping, flags) \
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| 57 | xa_lock_irqsave(&mapping->i_pages, flags)
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| 58 | #define flush_dcache_mmap_unlock_irqrestore(mapping, flags) \
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| 59 | xa_unlock_irqrestore(&mapping->i_pages, flags)
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| 60 |
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| 61 | #endif
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