1 files changed, 65 insertions, 0 deletions

diff --git a/include/asm-um/pgalloc.h b/include/asm-um/pgalloc.h
new file mode 100644
index 000000000000..8fcb2fc0a892
--- /dev/null
+++ b/include/asm-um/pgalloc.h
@@ -0,0 +1,65 @@
+/* 
+ * 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)))
+
+#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);
+
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
+extern struct page *pte_alloc_one(struct mm_struct *, unsigned long);
+
+static inline void pte_free_kernel(pte_t *pte)
+{
+        free_page((unsigned long) pte);
+}
+
+static inline void pte_free(struct page *pte)
+{
+        __free_page(pte);
+}
+
+#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
+
+#ifdef CONFIG_3_LEVEL_PGTABLES
+/*
+ * In the 3-level case we free the pmds as part of the pgd.
+ */
+#define pmd_free(x)                     do { } while (0)
+#define __pmd_free_tlb(tlb,x)           do { } while (0)
+#endif
+
+#define check_pgt_cache()       do { } while (0)
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */