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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 vma_alloc_zeroed_movable_folio(vma, vaddr) \
vma_alloc_folio(GFP_HIGHUSER_MOVABLE | __GFP_ZERO, 0, vma, vaddr, false)
#define __pa(vaddr) ((unsigned long)(vaddr))
#define __va(paddr) ((void *)((unsigned long)(paddr)))
static inline unsigned long virt_to_pfn(const void *kaddr)
{
return __pa(kaddr) >> PAGE_SHIFT;
}
static inline void *pfn_to_virt(unsigned long pfn)
{
return __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 virt_addr_valid(kaddr) (((unsigned long)(kaddr) >= PAGE_OFFSET) && \
((unsigned long)(kaddr) < memory_end))
#define ARCH_PFN_OFFSET PHYS_PFN(PAGE_OFFSET_RAW)
#endif /* __ASSEMBLY__ */
#endif /* _M68K_PAGE_NO_H */