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