Release 4.14 arch/m68k/include/asm/page_no.h

/* 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(movableflags, vma, vaddr) \
	alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)

#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE


#define __pa(vaddr)		((unsigned long)(vaddr))

#define __va(paddr)		((void *)(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)	(((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
                                ((void *)(kaddr) < (void *)memory_end))

#endif /* __ASSEMBLY__ */

#endif /* _M68K_PAGE_NO_H */
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Directory: arch/m68k/include/asm

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