|
|
|
|
/* 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 */
|
