2 files changed, 5 insertions, 4 deletions

diff --git a/arch/ppc/kernel/cputable.c b/arch/ppc/kernel/cputable.c
index 546e1ea4cafa..6b76cf58d9e0 100644
--- a/arch/ppc/kernel/cputable.c
+++ b/arch/ppc/kernel/cputable.c
@@ -91,7 +91,7 @@ struct cpu_spec	cpu_specs[] = {
                 .cpu_features           = CPU_FTR_COMMON | CPU_FTR_601 |
                         CPU_FTR_HPTE_TABLE,
                 .cpu_user_features      = COMMON_PPC | PPC_FEATURE_601_INSTR |
-                        PPC_FEATURE_UNIFIED_CACHE,
+                        PPC_FEATURE_UNIFIED_CACHE | PPC_FEATURE_NO_TB,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .cpu_setup              = __setup_cpu_601
@@ -745,7 +745,8 @@ struct cpu_spec	cpu_specs[] = {
                 .cpu_name               = "403GCX",
                 .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
                         CPU_FTR_USE_TB,
-                .cpu_user_features      = PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU,
+                .cpu_user_features      = PPC_FEATURE_32 |
+                        PPC_FEATURE_HAS_MMU | PPC_FEATURE_NO_TB,
                 .icache_bsize           = 16,
                 .dcache_bsize           = 16,
         },
diff --git a/arch/ppc/kernel/dma-mapping.c b/arch/ppc/kernel/dma-mapping.c
index b566d982806c..8edee806dae7 100644
--- a/arch/ppc/kernel/dma-mapping.c
+++ b/arch/ppc/kernel/dma-mapping.c
@@ -401,10 +401,10 @@ EXPORT_SYMBOL(__dma_sync);
 static inline void __dma_sync_page_highmem(struct page *page,
                 unsigned long offset, size_t size, int direction)
 {
-        size_t seg_size = min((size_t)PAGE_SIZE, size) - offset;
+        size_t seg_size = min((size_t)(PAGE_SIZE - offset), size);
         size_t cur_size = seg_size;
         unsigned long flags, start, seg_offset = offset;
-        int nr_segs = PAGE_ALIGN(size + (PAGE_SIZE - offset))/PAGE_SIZE;
+        int nr_segs = 1 + ((size - seg_size) + PAGE_SIZE - 1)/PAGE_SIZE;
         int seg_nr = 0;
 
         local_irq_save(flags);