1 files changed, 44 insertions, 0 deletions

diff --git a/include/asm-ppc/pgalloc.h b/include/asm-ppc/pgalloc.h
new file mode 100644
index 000000000000..931b6de7ef53
--- /dev/null
+++ b/include/asm-ppc/pgalloc.h
@@ -0,0 +1,44 @@
+#ifdef __KERNEL__
+#ifndef _PPC_PGALLOC_H
+#define _PPC_PGALLOC_H
+
+#include <linux/config.h>
+#include <linux/threads.h>
+
+extern void __bad_pte(pmd_t *pmd);
+
+extern pgd_t *pgd_alloc(struct mm_struct *mm);
+extern void pgd_free(pgd_t *pgd);
+
+/*
+ * 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,address)       ({ 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()
+
+#ifndef CONFIG_BOOKE
+#define pmd_populate_kernel(mm, pmd, pte)       \
+                (pmd_val(*(pmd)) = __pa(pte) | _PMD_PRESENT)
+#define pmd_populate(mm, pmd, pte)      \
+                (pmd_val(*(pmd)) = (page_to_pfn(pte) << PAGE_SHIFT) | _PMD_PRESENT)
+#else
+#define pmd_populate_kernel(mm, pmd, pte)       \
+                (pmd_val(*(pmd)) = (unsigned long)pte | _PMD_PRESENT)
+#define pmd_populate(mm, pmd, pte)      \
+                (pmd_val(*(pmd)) = (unsigned long)page_to_virt(pte) | _PMD_PRESENT)
+#endif
+
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
+extern struct page *pte_alloc_one(struct mm_struct *mm, unsigned long addr);
+extern void pte_free_kernel(pte_t *pte);
+extern void pte_free(struct page *pte);
+
+#define __pte_free_tlb(tlb, pte)        pte_free((pte))
+
+#define check_pgt_cache()       do { } while (0)
+
+#endif /* _PPC_PGALLOC_H */
+#endif /* __KERNEL__ */