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106 lines
3.6 KiB
106 lines
3.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __ASM_SH_CACHEFLUSH_H |
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#define __ASM_SH_CACHEFLUSH_H |
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#include <linux/mm.h> |
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/* |
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* Cache flushing: |
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* |
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* - flush_cache_all() flushes entire cache |
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* - flush_cache_mm(mm) flushes the specified mm context's cache lines |
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* - flush_cache_dup mm(mm) handles cache flushing when forking |
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* - flush_cache_page(mm, vmaddr, pfn) flushes a single page |
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* - flush_cache_range(vma, start, end) flushes a range of pages |
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* |
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* - flush_dcache_page(pg) flushes(wback&invalidates) a page for dcache |
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* - flush_icache_range(start, end) flushes(invalidates) a range for icache |
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* - flush_icache_page(vma, pg) flushes(invalidates) a page for icache |
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* - flush_cache_sigtramp(vaddr) flushes the signal trampoline |
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*/ |
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extern void (*local_flush_cache_all)(void *args); |
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extern void (*local_flush_cache_mm)(void *args); |
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extern void (*local_flush_cache_dup_mm)(void *args); |
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extern void (*local_flush_cache_page)(void *args); |
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extern void (*local_flush_cache_range)(void *args); |
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extern void (*local_flush_dcache_page)(void *args); |
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extern void (*local_flush_icache_range)(void *args); |
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extern void (*local_flush_icache_page)(void *args); |
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extern void (*local_flush_cache_sigtramp)(void *args); |
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static inline void cache_noop(void *args) { } |
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extern void (*__flush_wback_region)(void *start, int size); |
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extern void (*__flush_purge_region)(void *start, int size); |
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extern void (*__flush_invalidate_region)(void *start, int size); |
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extern void flush_cache_all(void); |
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extern void flush_cache_mm(struct mm_struct *mm); |
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extern void flush_cache_dup_mm(struct mm_struct *mm); |
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extern void flush_cache_page(struct vm_area_struct *vma, |
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unsigned long addr, unsigned long pfn); |
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extern void flush_cache_range(struct vm_area_struct *vma, |
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unsigned long start, unsigned long end); |
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#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 |
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extern void flush_dcache_page(struct page *page); |
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extern void flush_icache_range(unsigned long start, unsigned long end); |
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#define flush_icache_user_range flush_icache_range |
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extern void flush_icache_page(struct vm_area_struct *vma, |
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struct page *page); |
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extern void flush_cache_sigtramp(unsigned long address); |
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struct flusher_data { |
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struct vm_area_struct *vma; |
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unsigned long addr1, addr2; |
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}; |
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#define ARCH_HAS_FLUSH_ANON_PAGE |
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extern void __flush_anon_page(struct page *page, unsigned long); |
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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 (boot_cpu_data.dcache.n_aliases && PageAnon(page)) |
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__flush_anon_page(page, vmaddr); |
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} |
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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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__flush_wback_region(addr, size); |
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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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__flush_invalidate_region(addr, size); |
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} |
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extern void copy_to_user_page(struct vm_area_struct *vma, |
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struct page *page, unsigned long vaddr, void *dst, const void *src, |
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unsigned long len); |
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extern void copy_from_user_page(struct vm_area_struct *vma, |
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struct page *page, unsigned long vaddr, void *dst, const void *src, |
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unsigned long len); |
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#define flush_cache_vmap(start, end) local_flush_cache_all(NULL) |
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#define flush_cache_vunmap(start, end) local_flush_cache_all(NULL) |
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#define flush_dcache_mmap_lock(mapping) do { } while (0) |
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#define flush_dcache_mmap_unlock(mapping) do { } while (0) |
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void kmap_coherent_init(void); |
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void *kmap_coherent(struct page *page, unsigned long addr); |
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void kunmap_coherent(void *kvaddr); |
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#define PG_dcache_clean PG_arch_1 |
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void cpu_cache_init(void); |
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static inline void *sh_cacheop_vaddr(void *vaddr) |
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{ |
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if (__in_29bit_mode()) |
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vaddr = (void *)CAC_ADDR((unsigned long)vaddr); |
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return vaddr; |
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} |
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#endif /* __ASM_SH_CACHEFLUSH_H */
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