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/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _M68K_PAGE_NO_H #define _M68K_PAGE_NO_H #ifndef __ASSEMBLY__ extern unsigned long memory_start; extern unsigned long memory_end; #define clear_page(page) memset((page), 0, PAGE_SIZE) #define copy_page(to,from) memcpy((to), (from), PAGE_SIZE) #define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) #define alloc_zeroed_user_highpage_movable(vma, vaddr) \ alloc_page_vma(GFP_HIGHUSER_MOVABLE | __GFP_ZERO, vma, vaddr) #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE_MOVABLE #define __pa(vaddr) ((unsigned long)(vaddr)) #define __va(paddr) ((void *)((unsigned long)(paddr))) #define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT) #define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT) #define virt_to_page(addr) (mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT)) #define page_to_virt(page) __va(((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)) #define pfn_to_page(pfn) virt_to_page(pfn_to_virt(pfn)) #define page_to_pfn(page) virt_to_pfn(page_to_virt(page)) #define pfn_valid(pfn) ((pfn) < max_mapnr) #define virt_addr_valid(kaddr) (((unsigned long)(kaddr) >= PAGE_OFFSET) && \ ((unsigned long)(kaddr) < memory_end)) #endif /* __ASSEMBLY__ */ #endif /* _M68K_PAGE_NO_H */