1 files changed, 42 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/page_no.h b/arch/m68k/include/asm/page_no.h
new file mode 100644
index 000000000..af3a10973
--- /dev/null
+++ b/arch/m68k/include/asm/page_no.h
@@ -0,0 +1,42 @@
+/* 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 */