1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 2deae26bfSKyle McMartin #ifndef _PARISC_CACHEFLUSH_H 3deae26bfSKyle McMartin #define _PARISC_CACHEFLUSH_H 4deae26bfSKyle McMartin 5deae26bfSKyle McMartin #include <linux/mm.h> 6210501aaSJohn David Anglin #include <linux/uaccess.h> 7b7d45818SJames Bottomley #include <asm/tlbflush.h> 8deae26bfSKyle McMartin 9deae26bfSKyle McMartin /* The usual comment is "Caches aren't brain-dead on the <architecture>". 10deae26bfSKyle McMartin * Unfortunately, that doesn't apply to PA-RISC. */ 11deae26bfSKyle McMartin 120a575497SHelge Deller #include <linux/jump_label.h> 130a575497SHelge Deller 140a575497SHelge Deller DECLARE_STATIC_KEY_TRUE(parisc_has_cache); 150a575497SHelge Deller DECLARE_STATIC_KEY_TRUE(parisc_has_dcache); 160a575497SHelge Deller DECLARE_STATIC_KEY_TRUE(parisc_has_icache); 17deae26bfSKyle McMartin 18deae26bfSKyle McMartin #define flush_cache_dup_mm(mm) flush_cache_mm(mm) 19deae26bfSKyle McMartin 20deae26bfSKyle McMartin void flush_user_icache_range_asm(unsigned long, unsigned long); 21deae26bfSKyle McMartin void flush_kernel_icache_range_asm(unsigned long, unsigned long); 22deae26bfSKyle McMartin void flush_user_dcache_range_asm(unsigned long, unsigned long); 23deae26bfSKyle McMartin void flush_kernel_dcache_range_asm(unsigned long, unsigned long); 240adb24e0SJohn David Anglin void purge_kernel_dcache_range_asm(unsigned long, unsigned long); 2539ade048SFabio M. De Francesco void flush_kernel_dcache_page_asm(const void *addr); 26deae26bfSKyle McMartin void flush_kernel_icache_page(void *); 27deae26bfSKyle McMartin 28deae26bfSKyle McMartin /* Cache flush operations */ 29deae26bfSKyle McMartin 30deae26bfSKyle McMartin void flush_cache_all_local(void); 31deae26bfSKyle McMartin void flush_cache_all(void); 32deae26bfSKyle McMartin void flush_cache_mm(struct mm_struct *mm); 33deae26bfSKyle McMartin 3439ade048SFabio M. De Francesco void flush_kernel_dcache_page_addr(const void *addr); 358e1964a9SJames Bottomley 36deae26bfSKyle McMartin #define flush_kernel_dcache_range(start,size) \ 37deae26bfSKyle McMartin flush_kernel_dcache_range_asm((start), (start)+(size)); 38ef7cc35bSJames Bottomley 39f358afc5SChristoph Hellwig #define ARCH_IMPLEMENTS_FLUSH_KERNEL_VMAP_RANGE 1 40316ec062SJohn David Anglin void flush_kernel_vmap_range(void *vaddr, int size); 41316ec062SJohn David Anglin void invalidate_kernel_vmap_range(void *vaddr, int size); 42deae26bfSKyle McMartin 43deae26bfSKyle McMartin #define flush_cache_vmap(start, end) flush_cache_all() 44deae26bfSKyle McMartin #define flush_cache_vunmap(start, end) flush_cache_all() 45deae26bfSKyle McMartin 462d4dc890SIlya Loginov #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 4708b0b005SMatthew Wilcox (Oracle) void flush_dcache_page(struct page *page); 48deae26bfSKyle McMartin 49b93b0163SMatthew Wilcox #define flush_dcache_mmap_lock(mapping) xa_lock_irq(&mapping->i_pages) 50b93b0163SMatthew Wilcox #define flush_dcache_mmap_unlock(mapping) xa_unlock_irq(&mapping->i_pages) 51*61e150fbSHelge Deller #define flush_dcache_mmap_lock_irqsave(mapping, flags) \ 52*61e150fbSHelge Deller xa_lock_irqsave(&mapping->i_pages, flags) 53*61e150fbSHelge Deller #define flush_dcache_mmap_unlock_irqrestore(mapping, flags) \ 54*61e150fbSHelge Deller xa_unlock_irqrestore(&mapping->i_pages, flags) 55deae26bfSKyle McMartin 56deae26bfSKyle McMartin #define flush_icache_page(vma,page) do { \ 57f358afc5SChristoph Hellwig flush_kernel_dcache_page_addr(page_address(page)); \ 58deae26bfSKyle McMartin flush_kernel_icache_page(page_address(page)); \ 59deae26bfSKyle McMartin } while (0) 60deae26bfSKyle McMartin 61deae26bfSKyle McMartin #define flush_icache_range(s,e) do { \ 62deae26bfSKyle McMartin flush_kernel_dcache_range_asm(s,e); \ 63deae26bfSKyle McMartin flush_kernel_icache_range_asm(s,e); \ 64deae26bfSKyle McMartin } while (0) 65deae26bfSKyle McMartin 662de8b4ccSJohn David Anglin void copy_to_user_page(struct vm_area_struct *vma, struct page *page, 672de8b4ccSJohn David Anglin unsigned long user_vaddr, void *dst, void *src, int len); 682de8b4ccSJohn David Anglin void copy_from_user_page(struct vm_area_struct *vma, struct page *page, 692de8b4ccSJohn David Anglin unsigned long user_vaddr, void *dst, void *src, int len); 702de8b4ccSJohn David Anglin void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, 712de8b4ccSJohn David Anglin unsigned long pfn); 72deae26bfSKyle McMartin void flush_cache_range(struct vm_area_struct *vma, 73deae26bfSKyle McMartin unsigned long start, unsigned long end); 74deae26bfSKyle McMartin 75f311847cSJames Bottomley /* defined in pacache.S exported in cache.c used by flush_anon_page */ 76f311847cSJames Bottomley void flush_dcache_page_asm(unsigned long phys_addr, unsigned long vaddr); 77f311847cSJames Bottomley 78deae26bfSKyle McMartin #define ARCH_HAS_FLUSH_ANON_PAGE 792de8b4ccSJohn David Anglin void flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vmaddr); 80deae26bfSKyle McMartin 817438f363SIra Weiny #define ARCH_HAS_FLUSH_ON_KUNMAP 8239ade048SFabio M. De Francesco static inline void kunmap_flush_on_unmap(const void *addr) 83210501aaSJohn David Anglin { 84f8dae006SJohn David Anglin flush_kernel_dcache_page_addr(addr); 85210501aaSJohn David Anglin } 86deae26bfSKyle McMartin 87deae26bfSKyle McMartin #endif /* _PARISC_CACHEFLUSH_H */ 88deae26bfSKyle McMartin 89