diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 53ec052..2c4f7e1 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -364,20 +364,23 @@
 static inline void local_r4k_flush_cache_range(void * args)
 {
 	struct vm_area_struct *vma = args;
+	int exec = vma->vm_flags & VM_EXEC;
 
 	if (!(has_valid_asid(vma->vm_mm)))
 		return;
 
 	r4k_blast_dcache();
+	if (exec)
+		r4k_blast_icache();
 }
 
 static void r4k_flush_cache_range(struct vm_area_struct *vma,
 	unsigned long start, unsigned long end)
 {
-	if (!cpu_has_dc_aliases)
-		return;
+	int exec = vma->vm_flags & VM_EXEC;
 
-	r4k_on_each_cpu(local_r4k_flush_cache_range, vma, 1, 1);
+	if (cpu_has_dc_aliases || (exec && !cpu_has_ic_fills_f_dc))
+		r4k_on_each_cpu(local_r4k_flush_cache_range, vma, 1, 1);
 }
 
 static inline void local_r4k_flush_cache_mm(void * args)