[MIPS] Handle I-cache coherency in flush_cache_range()

[linux-2.6-omap-h63xx.git] / arch / mips / mm / c-r4k.c

diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 53ec05267a98190739ac454d217f4e12a9f34e90..2c4f7e11f0d55fe746d142f764b0e4024f78d686 100644 (file)
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -364,20 +364,23 @@ static inline int has_valid_asid(const struct mm_struct *mm)
 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)