summaryrefslogtreecommitdiffstats
path: root/arch/m68knommu/include/asm/pgtable.h
diff options
context:
space:
mode:
authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-08-08 17:33:47 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-08-08 19:18:18 +0100
commit097d9eb537ff4d88b74c3fe67392e27c478ca3c5 (patch)
tree9034d676d9096857a380aab9d99e3e88fccb6bfe /arch/m68knommu/include/asm/pgtable.h
parentc41107c2d4fd31924533f4dbc4c3428acc2b5894 (diff)
parentaeee90dfa01844168cd7f8051d0a0f969c573067 (diff)
downloadlinux-097d9eb537ff4d88b74c3fe67392e27c478ca3c5.tar.bz2
Merge Linus' latest into master
Conflicts: drivers/watchdog/at91rm9200_wdt.c drivers/watchdog/davinci_wdt.c drivers/watchdog/ep93xx_wdt.c drivers/watchdog/ixp2000_wdt.c drivers/watchdog/ixp4xx_wdt.c drivers/watchdog/ks8695_wdt.c drivers/watchdog/omap_wdt.c drivers/watchdog/pnx4008_wdt.c drivers/watchdog/sa1100_wdt.c drivers/watchdog/wdt285.c
Diffstat (limited to 'arch/m68knommu/include/asm/pgtable.h')
-rw-r--r--arch/m68knommu/include/asm/pgtable.h70
1 files changed, 70 insertions, 0 deletions
diff --git a/arch/m68knommu/include/asm/pgtable.h b/arch/m68knommu/include/asm/pgtable.h
new file mode 100644
index 000000000000..46251016e821
--- /dev/null
+++ b/arch/m68knommu/include/asm/pgtable.h
@@ -0,0 +1,70 @@
+#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 })
+
+static inline int pte_file(pte_t pte) { return 0; }
+
+/*
+ * 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))
+
+/*
+ * These would be in other places but having them here reduces the diffs.
+ */
+extern unsigned int kobjsize(const void *objp);
+
+/*
+ * No page table caches to initialise.
+ */
+#define pgtable_cache_init() do { } while (0)
+
+#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
+ remap_pfn_range(vma, vaddr, pfn, size, prot)
+
+/*
+ * All 32bit addresses are effectively valid for vmalloc...
+ * Sort of meaningless for non-VM targets.
+ */
+#define VMALLOC_START 0
+#define VMALLOC_END 0xffffffff
+
+#include <asm-generic/pgtable.h>
+
+#endif /* _M68KNOMMU_PGTABLE_H */