| 1 |
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| 2 | #ifndef _SPARC64_CACHEFLUSH_H
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| 3 | #define _SPARC64_CACHEFLUSH_H
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| 4 |
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| 5 | #include <asm/page.h>
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| 6 |
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| 7 | #ifndef __ASSEMBLER__
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| 8 |
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| 9 | #include <linux/mm.h>
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| 10 |
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| 11 |
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| 12 | #define flushw_all() __asm__ __volatile__("flushw")
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| 13 |
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| 14 | void __flushw_user(void);
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| 15 | #define flushw_user() __flushw_user()
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| 16 |
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| 17 | #define flush_user_windows flushw_user
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| 18 | #define flush_register_windows flushw_all
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| 19 |
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| 20 |
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| 21 | #define flush_cache_mm(__mm) \
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| 22 | do { if ((__mm) == current->mm) flushw_user(); } while(0)
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| 23 | #define flush_cache_dup_mm(mm) flush_cache_mm(mm)
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| 24 | #define flush_cache_range(vma, start, end) \
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| 25 | flush_cache_mm((vma)->vm_mm)
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| 26 | #define flush_cache_page(vma, page, pfn) \
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| 27 | flush_cache_mm((vma)->vm_mm)
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| 28 |
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| 29 | |
| 30 | * On spitfire, the icache doesn't snoop local stores and we don't
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| 31 | * use block commit stores (which invalidate icache lines) during
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| 32 | * module load, so we need this.
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| 33 |
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| 34 | void flush_icache_range(unsigned long start, unsigned long end);
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| 35 | void __flush_icache_page(unsigned long);
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| 36 |
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| 37 | void __flush_dcache_page(void *addr, int flush_icache);
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| 38 | void flush_dcache_folio_impl(struct folio *folio);
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| 39 | #ifdef CONFIG_SMP
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| 40 | void smp_flush_dcache_folio_impl(struct folio *folio, int cpu);
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| 41 | void flush_dcache_folio_all(struct mm_struct *mm, struct folio *folio);
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| 42 | #else
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| 43 | #define smp_flush_dcache_folio_impl(folio, cpu) flush_dcache_folio_impl(folio)
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| 44 | #define flush_dcache_folio_all(mm, folio) flush_dcache_folio_impl(folio)
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| 45 | #endif
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| 46 |
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| 47 | void __flush_dcache_range(unsigned long start, unsigned long end);
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| 48 | #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
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| 49 | void flush_dcache_folio(struct folio *folio);
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| 50 | #define flush_dcache_folio flush_dcache_folio
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| 51 | static inline void flush_dcache_page(struct page *page)
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| 52 | {
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| 53 | flush_dcache_folio(page_folio(page));
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| 54 | }
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| 55 |
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| 56 | void flush_ptrace_access(struct vm_area_struct *, struct page *,
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| 57 | unsigned long uaddr, void *kaddr,
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| 58 | unsigned long len, int write);
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| 59 |
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| 60 | #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
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| 61 | do { \
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| 62 | flush_cache_page(vma, vaddr, page_to_pfn(page)); \
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| 63 | memcpy(dst, src, len); \
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| 64 | flush_ptrace_access(vma, page, vaddr, src, len, 0); \
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| 65 | } while (0)
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| 66 |
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| 67 | #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
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| 68 | do { \
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| 69 | flush_cache_page(vma, vaddr, page_to_pfn(page)); \
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| 70 | memcpy(dst, src, len); \
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| 71 | flush_ptrace_access(vma, page, vaddr, dst, len, 1); \
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| 72 | } while (0)
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| 73 |
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| 74 | #define flush_dcache_mmap_lock(mapping) do { } while (0)
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| 75 | #define flush_dcache_mmap_unlock(mapping) do { } while (0)
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| 76 |
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| 77 | #define flush_cache_vmap(start, end) do { } while (0)
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| 78 | #define flush_cache_vmap_early(start, end) do { } while (0)
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| 79 | #define flush_cache_vunmap(start, end) do { } while (0)
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| 80 |
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| 81 | #endif
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| 82 |
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| 83 | #endif
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