1 files changed, 72 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/page.h b/arch/m68k/include/asm/page.h
new file mode 100644
index 000000000..2f1c54e47
--- /dev/null
+++ b/arch/m68k/include/asm/page.h
@@ -0,0 +1,72 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _M68K_PAGE_H
+#define _M68K_PAGE_H
+
+#include <linux/const.h>
+#include <asm/setup.h>
+#include <asm/page_offset.h>
+
+/* PAGE_SHIFT determines the page size */
+#if defined(CONFIG_SUN3) || defined(CONFIG_COLDFIRE)
+#define PAGE_SHIFT	13
+#else
+#define PAGE_SHIFT	12
+#endif
+#define PAGE_SIZE	(_AC(1, UL) << PAGE_SHIFT)
+#define PAGE_MASK	(~(PAGE_SIZE-1))
+#define PAGE_OFFSET	(PAGE_OFFSET_RAW)
+
+#ifndef __ASSEMBLY__
+
+/*
+ * These are used to make use of C type-checking..
+ */
+#if !defined(CONFIG_MMU) || CONFIG_PGTABLE_LEVELS == 3
+typedef struct { unsigned long pmd; } pmd_t;
+#define pmd_val(x)	((&x)->pmd)
+#define __pmd(x)	((pmd_t) { (x) } )
+#endif
+
+typedef struct { unsigned long pte; } pte_t;
+typedef struct { unsigned long pgd; } pgd_t;
+typedef struct { unsigned long pgprot; } pgprot_t;
+
+#if defined(CONFIG_SUN3)
+/*
+ * Sun3 still uses the asm-generic/pgalloc.h code and thus needs this
+ * definition. It would be possible to unify Sun3 and ColdFire pgalloc and have
+ * all of m68k use the same type.
+ */
+typedef struct page *pgtable_t;
+#else
+typedef pte_t *pgtable_t;
+#endif
+
+#define pte_val(x)	((x).pte)
+#define pgd_val(x)	((x).pgd)
+#define pgprot_val(x)	((x).pgprot)
+
+#define __pte(x)	((pte_t) { (x) } )
+#define __pgd(x)	((pgd_t) { (x) } )
+#define __pgprot(x)	((pgprot_t) { (x) } )
+
+extern unsigned long _rambase;
+extern unsigned long _ramstart;
+extern unsigned long _ramend;
+
+#endif /* !__ASSEMBLY__ */
+
+#ifdef CONFIG_MMU
+#include <asm/page_mm.h>
+#else
+#include <asm/page_no.h>
+#endif
+
+#ifndef CONFIG_MMU
+#define __phys_to_pfn(paddr)	((unsigned long)((paddr) >> PAGE_SHIFT))
+#define __pfn_to_phys(pfn)	PFN_PHYS(pfn)
+#endif
+
+#include <asm-generic/getorder.h>
+
+#endif /* _M68K_PAGE_H */