summaryrefslogtreecommitdiffstats
path: root/kernel/arch/m68k/include/asm/pgtable_no.h
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/arch/m68k/include/asm/pgtable_no.h')
-rw-r--r--kernel/arch/m68k/include/asm/pgtable_no.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/kernel/arch/m68k/include/asm/pgtable_no.h b/kernel/arch/m68k/include/asm/pgtable_no.h
new file mode 100644
index 000000000..ac7d87a02
--- /dev/null
+++ b/kernel/arch/m68k/include/asm/pgtable_no.h
@@ -0,0 +1,64 @@
+#ifndef _M68KNOMMU_PGTABLE_H
+#define _M68KNOMMU_PGTABLE_H
+
+#include <asm-generic/4level-fixup.h>
+
+/*
+ * (C) Copyright 2000-2002, Greg Ungerer <gerg@snapgear.com>
+ */
+
+#include <linux/slab.h>
+#include <asm/processor.h>
+#include <asm/page.h>
+#include <asm/io.h>
+
+/*
+ * Trivial page table functions.
+ */
+#define pgd_present(pgd) (1)
+#define pgd_none(pgd) (0)
+#define pgd_bad(pgd) (0)
+#define pgd_clear(pgdp)
+#define kern_addr_valid(addr) (1)
+#define pmd_offset(a, b) ((void *)0)
+
+#define PAGE_NONE __pgprot(0)
+#define PAGE_SHARED __pgprot(0)
+#define PAGE_COPY __pgprot(0)
+#define PAGE_READONLY __pgprot(0)
+#define PAGE_KERNEL __pgprot(0)
+
+extern void paging_init(void);
+#define swapper_pg_dir ((pgd_t *) 0)
+
+#define __swp_type(x) (0)
+#define __swp_offset(x) (0)
+#define __swp_entry(typ,off) ((swp_entry_t) { ((typ) | ((off) << 7)) })
+#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
+#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
+
+/*
+ * ZERO_PAGE is a global shared page that is always zero: used
+ * for zero-mapped memory areas etc..
+ */
+#define ZERO_PAGE(vaddr) (virt_to_page(0))
+
+/*
+ * No page table caches to initialise.
+ */
+#define pgtable_cache_init() do { } while (0)
+
+/*
+ * All 32bit addresses are effectively valid for vmalloc...
+ * Sort of meaningless for non-VM targets.
+ */
+#define VMALLOC_START 0
+#define VMALLOC_END 0xffffffff
+#define KMAP_START 0
+#define KMAP_END 0xffffffff
+
+#include <asm-generic/pgtable.h>
+
+#define check_pgt_cache() do { } while (0)
+
+#endif /* _M68KNOMMU_PGTABLE_H */