1 files changed, 62 insertions, 0 deletions

diff --git a/include/asm-cris/pgalloc.h b/include/asm-cris/pgalloc.h
new file mode 100644
index 000000000000..b202e62ed6e0
--- /dev/null
+++ b/include/asm-cris/pgalloc.h
@@ -0,0 +1,62 @@
+#ifndef _CRIS_PGALLOC_H
+#define _CRIS_PGALLOC_H
+
+#include <linux/threads.h>
+#include <linux/mm.h>
+
+#define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, pte)
+#define pmd_populate(mm, pmd, pte) pmd_set(pmd, page_address(pte))
+
+/*
+ * Allocate and free page tables.
+ */
+
+extern inline pgd_t *pgd_alloc (struct mm_struct *mm)
+{
+        return (pgd_t *)get_zeroed_page(GFP_KERNEL);
+}
+
+extern inline void pgd_free (pgd_t *pgd)
+{
+        free_page((unsigned long)pgd);
+}
+
+extern 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_REPEAT|__GFP_ZERO);
+        return pte;
+}
+
+extern inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+        struct page *pte;
+        pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
+        return pte;
+}
+
+extern inline void pte_free_kernel(pte_t *pte)
+{
+        free_page((unsigned long)pte);
+}
+
+extern inline void pte_free(struct page *pte)
+{
+        __free_page(pte);
+}
+
+
+#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
+
+/*
+ * We don't have any real pmd's, and this code never triggers because
+ * the pgd will always be present..
+ */
+
+#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