1 files changed, 78 insertions, 0 deletions

diff --git a/include/asm-m32r/pgalloc.h b/include/asm-m32r/pgalloc.h
new file mode 100644
index 000000000000..6da309b6fda7
--- /dev/null
+++ b/include/asm-m32r/pgalloc.h
@@ -0,0 +1,78 @@
+#ifndef _ASM_M32R_PGALLOC_H
+#define _ASM_M32R_PGALLOC_H
+
+/* $Id$ */
+
+#include <linux/config.h>
+#include <linux/mm.h>
+
+#include <asm/io.h>
+
+#define pmd_populate_kernel(mm, pmd, pte)       \
+        set_pmd(pmd, __pmd(_PAGE_TABLE + __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)));
+}
+
+/*
+ * Allocate and free page tables.
+ */
+static __inline__ pgd_t *pgd_alloc(struct mm_struct *mm)
+{
+        pgd_t *pgd = (pgd_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
+
+        return pgd;
+}
+
+static __inline__ void pgd_free(pgd_t *pgd)
+{
+        free_page((unsigned long)pgd);
+}
+
+static __inline__ pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
+        unsigned long address)
+{
+        pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
+
+        return pte;
+}
+
+static __inline__ struct page *pte_alloc_one(struct mm_struct *mm,
+        unsigned long address)
+{
+        struct page *pte = alloc_page(GFP_KERNEL|__GFP_ZERO);
+
+
+        return pte;
+}
+
+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)        pte_free((pte))
+
+/*
+ * allocating and freeing a pmd is trivial: the 1-entry pmd is
+ * inside the pgd, so has no extra memory associated with it.
+ * (In the PAE case we free the pmds as part of the pgd.)
+ */
+
+#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()
+
+#define check_pgt_cache()       do { } while (0)
+
+#endif /* _ASM_M32R_PGALLOC_H */
+