/*
* Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Copyright 2003 PathScale, Inc.
* Derived from include/asm-i386/pgalloc.h and include/asm-i386/pgtable.h
* Licensed under the GPL
*/
#ifndef __UM_PGALLOC_H
#define __UM_PGALLOC_H
+#include "linux/config.h"
#include "linux/mm.h"
#include "asm/fixmap.h"
#define pmd_populate_kernel(mm, pmd, pte) \
- set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) __pa(pte)))
+ set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) __pa(pte)))
-static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
- struct page *pte)
-{
- set_pmd(pmd, __pmd(_PAGE_TABLE + page_to_phys(pte)));
-}
+#define pmd_populate(mm, pmd, pte) \
+ set_pmd(pmd, __pmd(_PAGE_TABLE + \
+ ((unsigned long long)page_to_pfn(pte) << \
+ (unsigned long long) PAGE_SHIFT)))
+/*
+ * Allocate and free page tables.
+ */
extern pgd_t *pgd_alloc(struct mm_struct *);
extern void pgd_free(pgd_t *pgd);
#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
-/*
- * allocating and freeing a pmd is trivial: the 1-entry pmd is
- * inside the pgd, so has no extra memory associated with it.
- */
+#ifdef CONFIG_3_LEVEL_PGTABLES
-#define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); })
-#define pmd_free(x) do { } while (0)
-#define __pmd_free_tlb(tlb,x) do { } while (0)
-#define pgd_populate(mm, pmd, pte) BUG()
+extern __inline__ void pmd_free(pmd_t *pmd)
+{
+ free_page((unsigned long)pmd);
+}
+
+#define __pmd_free_tlb(tlb,x) tlb_remove_page((tlb),virt_to_page(x))
+#endif
#define check_pgt_cache() do { } while (0)
+#define arch_add_exec_range(mm, limit) do { ; } while (0)
+#define arch_flush_exec_range(mm) do { ; } while (0)
+#define arch_remove_exec_range(mm, limit) do { ; } while (0)
+
#endif
/*