94 lines
3.3 KiB
C
94 lines
3.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _PARISC_CACHEFLUSH_H
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#define _PARISC_CACHEFLUSH_H
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#include <linux/mm.h>
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#include <linux/uaccess.h>
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#include <asm/tlbflush.h>
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/* The usual comment is "Caches aren't brain-dead on the <architecture>".
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* Unfortunately, that doesn't apply to PA-RISC. */
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#include <linux/jump_label.h>
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DECLARE_STATIC_KEY_TRUE(parisc_has_cache);
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DECLARE_STATIC_KEY_TRUE(parisc_has_dcache);
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DECLARE_STATIC_KEY_TRUE(parisc_has_icache);
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#define flush_cache_dup_mm(mm) flush_cache_mm(mm)
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void flush_user_icache_range_asm(unsigned long, unsigned long);
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void flush_kernel_icache_range_asm(unsigned long, unsigned long);
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void flush_user_dcache_range_asm(unsigned long, unsigned long);
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void flush_kernel_dcache_range_asm(unsigned long, unsigned long);
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void purge_kernel_dcache_range_asm(unsigned long, unsigned long);
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void flush_kernel_dcache_page_asm(const void *addr);
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void flush_kernel_icache_page(void *);
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/* Cache flush operations */
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void flush_cache_all_local(void);
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void flush_cache_all(void);
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void flush_cache_mm(struct mm_struct *mm);
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void flush_kernel_dcache_page_addr(const void *addr);
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#define flush_kernel_dcache_range(start,size) \
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flush_kernel_dcache_range_asm((start), (start)+(size));
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#define ARCH_IMPLEMENTS_FLUSH_KERNEL_VMAP_RANGE 1
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void flush_kernel_vmap_range(void *vaddr, int size);
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void invalidate_kernel_vmap_range(void *vaddr, int size);
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#define flush_cache_vmap(start, end) flush_cache_all()
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#define flush_cache_vmap_early(start, end) do { } while (0)
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#define flush_cache_vunmap(start, end) flush_cache_all()
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void flush_dcache_folio(struct folio *folio);
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#define flush_dcache_folio flush_dcache_folio
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#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
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static inline void flush_dcache_page(struct page *page)
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{
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flush_dcache_folio(page_folio(page));
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}
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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 flush_dcache_mmap_lock_irqsave(mapping, flags) \
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xa_lock_irqsave(&mapping->i_pages, flags)
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#define flush_dcache_mmap_unlock_irqrestore(mapping, flags) \
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xa_unlock_irqrestore(&mapping->i_pages, flags)
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void flush_icache_pages(struct vm_area_struct *vma, struct page *page,
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unsigned int nr);
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#define flush_icache_pages flush_icache_pages
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#define flush_icache_range(s,e) do { \
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flush_kernel_dcache_range_asm(s,e); \
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flush_kernel_icache_range_asm(s,e); \
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} while (0)
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void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
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unsigned long user_vaddr, void *dst, void *src, int len);
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void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
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unsigned long user_vaddr, void *dst, void *src, int len);
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void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
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unsigned long pfn);
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void flush_cache_range(struct vm_area_struct *vma,
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unsigned long start, unsigned long end);
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/* defined in pacache.S exported in cache.c used by flush_anon_page */
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void flush_dcache_page_asm(unsigned long phys_addr, unsigned long vaddr);
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#define ARCH_HAS_FLUSH_ANON_PAGE
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void flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vmaddr);
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#define ARCH_HAS_FLUSH_ON_KUNMAP
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static inline void kunmap_flush_on_unmap(const void *addr)
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{
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flush_kernel_dcache_page_addr(addr);
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}
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#endif /* _PARISC_CACHEFLUSH_H */
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