1 files changed, 30 insertions, 2 deletions

diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index 9679b7519a35..dad1d27e196d 100644
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h
@@ -66,7 +66,6 @@ extern unsigned long empty_zero_page[];
 
 extern pgd_t swapper_pg_dir[];
 
-void limit_zone_pfn(enum zone_type zone, unsigned long max_pfn);
 int dma_pfn_limit_to_zone(u64 pfn_limit);
 extern void paging_init(void);
 
@@ -101,7 +100,7 @@ extern int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr,
 /* can we use this in kvm */
 unsigned long vmalloc_to_phys(void *vmalloc_addr);
 
-void pgtable_cache_add(unsigned shift, void (*ctor)(void *));
+void pgtable_cache_add(unsigned int shift);
 void pgtable_cache_init(void);
 
 #if defined(CONFIG_STRICT_KERNEL_RWX) || defined(CONFIG_PPC32)
@@ -110,6 +109,35 @@ void mark_initmem_nx(void);
 static inline void mark_initmem_nx(void) { }
 #endif
 
+/*
+ * When used, PTE_FRAG_NR is defined in subarch pgtable.h
+ * so we are sure it is included when arriving here.
+ */
+#ifdef PTE_FRAG_NR
+static inline void *pte_frag_get(mm_context_t *ctx)
+{
+        return ctx->pte_frag;
+}
+
+static inline void pte_frag_set(mm_context_t *ctx, void *p)
+{
+        ctx->pte_frag = p;
+}
+#else
+#define PTE_FRAG_NR             1
+#define PTE_FRAG_SIZE_SHIFT     PAGE_SHIFT
+#define PTE_FRAG_SIZE           (1UL << PTE_FRAG_SIZE_SHIFT)
+
+static inline void *pte_frag_get(mm_context_t *ctx)
+{
+        return NULL;
+}
+
+static inline void pte_frag_set(mm_context_t *ctx, void *p)
+{
+}
+#endif
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_POWERPC_PGTABLE_H */