1 files changed, 81 insertions, 0 deletions

diff --git a/arch/c6x/include/asm/pgtable.h b/arch/c6x/include/asm/pgtable.h
new file mode 100644
index 000000000000..68c8af4f1f97
--- /dev/null
+++ b/arch/c6x/include/asm/pgtable.h
@@ -0,0 +1,81 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  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 _ASM_C6X_PGTABLE_H
+#define _ASM_C6X_PGTABLE_H
+
+#include <asm-generic/4level-fixup.h>
+
+#include <asm/setup.h>
+#include <asm/page.h>
+
+/*
+ * All 32bit addresses are effectively valid for vmalloc...
+ * Sort of meaningless for non-VM targets.
+ */
+#define VMALLOC_START   0
+#define VMALLOC_END     0xffffffff
+
+#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 pmd_none(x)             (!pmd_val(x))
+#define pmd_present(x)          (pmd_val(x))
+#define pmd_clear(xp)           do { set_pmd(xp, __pmd(0)); } while (0)
+#define pmd_bad(x)              (pmd_val(x) & ~PAGE_MASK)
+
+#define PAGE_NONE               __pgprot(0)    /* these mean nothing to NO_MM */
+#define PAGE_SHARED             __pgprot(0)    /* these mean nothing to NO_MM */
+#define PAGE_COPY               __pgprot(0)    /* these mean nothing to NO_MM */
+#define PAGE_READONLY           __pgprot(0)    /* these mean nothing to NO_MM */
+#define PAGE_KERNEL             __pgprot(0)    /* these mean nothing to NO_MM */
+#define pgprot_noncached(prot)  (prot)
+
+extern void paging_init(void);
+
+#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;
+}
+
+#define set_pte(pteptr, pteval) (*(pteptr) = pteval)
+#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval)
+
+/*
+ * 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(empty_zero_page)
+extern unsigned long empty_zero_page;
+
+#define swapper_pg_dir ((pgd_t *) 0)
+
+/*
+ * No page table caches to initialise
+ */
+#define pgtable_cache_init()   do { } while (0)
+#define io_remap_pfn_range      remap_pfn_range
+
+#define io_remap_page_range(vma, vaddr, paddr, size, prot)              \
+                remap_pfn_range(vma, vaddr, (paddr) >> PAGE_SHIFT, size, prot)
+
+#include <asm-generic/pgtable.h>
+
+#endif /* _ASM_C6X_PGTABLE_H */