This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / asm-arm / pgtable-nommu.h

diff --git a/include/asm-arm/pgtable-nommu.h b/include/asm-arm/pgtable-nommu.h
new file mode 100644 (file)
index 0000000..c1b264d
--- /dev/null
+++ b/include/asm-arm/pgtable-nommu.h
@@ -0,0 +1,122 @@
+/*
+ *  linux/include/asm-arm/pgtable-nommu.h
+ *
+ *  Copyright (C) 1995-2002 Russell King
+ *  Copyright (C) 2004  Hyok S. Choi
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _ASMARM_PGTABLE_NOMMU_H
+#define _ASMARM_PGTABLE_NOMMU_H
+
+#ifndef __ASSEMBLY__
+
+#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)
+/* FIXME */
+/*
+ * PMD_SHIFT determines the size of the area a second-level page table can map
+ * PGDIR_SHIFT determines what a third-level page table entry can map
+ */
+#define PGDIR_SHIFT            21
+
+#define PGDIR_SIZE             (1UL << PGDIR_SHIFT)
+#define PGDIR_MASK             (~(PGDIR_SIZE-1))
+/* FIXME */
+
+#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(struct meminfo *, struct machine_desc *);
+#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 })
+
+
+typedef pte_t *pte_addr_t;
+
+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))
+
+/*
+ * Mark the prot value as uncacheable and unbufferable.
+ */
+#define pgprot_noncached(prot) __pgprot(0)
+#define pgprot_writecombine(prot) __pgprot(0)
+
+
+/*
+ * These would be in other places but having them here reduces the diffs.
+ */
+extern unsigned int kobjsize(const void *objp);
+extern int is_in_rom(unsigned long);
+
+/*
+ * No page table caches to initialise.
+ */
+#define pgtable_cache_init()   do { } while (0)
+#define io_remap_page_range    remap_page_range
+#define io_remap_pfn_range     remap_pfn_range
+
+#define MK_IOSPACE_PFN(space, pfn)     (pfn)
+#define GET_IOSPACE(pfn)               0
+#define GET_PFN(pfn)                   (pfn)
+
+
+/*
+ * All 32bit addresses are effectively valid for vmalloc...
+ * Sort of meaningless for non-VM targets.
+ */
+#define        VMALLOC_START   0
+#define        VMALLOC_END     0xffffffff
+
+#define FIRST_USER_ADDRESS      (0)
+
+#else 
+
+/*
+ * dummy tlb and user structures.
+ */
+#define v3_tlb_fns     (0)
+#define v4_tlb_fns     (0)
+#define v4wb_tlb_fns   (0)
+#define v4wbi_tlb_fns  (0)
+#define v6_tlb_fns     (0)
+
+#define v3_user_fns    (0)
+#define v4_user_fns    (0)
+#define v4_mc_user_fns (0)
+#define v4wb_user_fns  (0)
+#define v4wt_user_fns  (0)
+#define v6_user_fns    (0)
+#define xscale_mc_user_fns (0)
+
+#endif /*__ASSEMBLY__*/
+
+#endif /* _ASMARM_PGTABLE_H */