1 files changed, 107 insertions, 0 deletions

diff --git a/include/asm-m68k/motorola_pgalloc.h b/include/asm-m68k/motorola_pgalloc.h
new file mode 100644
index 000000000000..5158412cd54d
--- /dev/null
+++ b/include/asm-m68k/motorola_pgalloc.h
@@ -0,0 +1,107 @@
+#ifndef _MOTOROLA_PGALLOC_H
+#define _MOTOROLA_PGALLOC_H
+
+#include <asm/tlb.h>
+#include <asm/tlbflush.h>
+
+extern pmd_t *get_pointer_table(void);
+extern int free_pointer_table(pmd_t *);
+
+
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+{
+        pte_t *pte;
+
+        pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
+        if (pte) {
+                __flush_page_to_ram(pte);
+                flush_tlb_kernel_page(pte);
+                nocache_page(pte);
+        }
+
+        return pte;
+}
+
+static inline void pte_free_kernel(pte_t *pte)
+{
+        cache_page(pte);
+        free_page((unsigned long) pte);
+}
+
+static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+        struct page *page = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
+        pte_t *pte;
+
+        if(!page)
+                return NULL;
+
+        pte = kmap(page);
+        if (pte) {
+                __flush_page_to_ram(pte);
+                flush_tlb_kernel_page(pte);
+                nocache_page(pte);
+        }
+        kunmap(pte);
+
+        return page;
+}
+
+static inline void pte_free(struct page *page)
+{
+        cache_page(kmap(page));
+        kunmap(page);
+        __free_page(page);
+}
+
+static inline void __pte_free_tlb(struct mmu_gather *tlb, struct page *page)
+{
+        cache_page(kmap(page));
+        kunmap(page);
+        __free_page(page);
+}
+
+
+static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+        return get_pointer_table();
+}
+
+static inline int pmd_free(pmd_t *pmd)
+{
+        return free_pointer_table(pmd);
+}
+
+static inline int __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
+{
+        return free_pointer_table(pmd);
+}
+
+
+static inline void pgd_free(pgd_t *pgd)
+{
+        pmd_free((pmd_t *)pgd);
+}
+
+static inline pgd_t *pgd_alloc(struct mm_struct *mm)
+{
+        return (pgd_t *)get_pointer_table();
+}
+
+
+static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
+{
+        pmd_set(pmd, pte);
+}
+
+static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *page)
+{
+        pmd_set(pmd, page_address(page));
+}
+
+static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
+{
+        pgd_set(pgd, pmd);
+}
+
+#endif /* _MOTOROLA_PGALLOC_H */