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-rw-r--r--arch/mips/mm/c-r4k.c11
-rw-r--r--arch/mips/mm/init.c2
2 files changed, 10 insertions, 3 deletions
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index caac3d747a90..fc7289dfaf5a 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -492,7 +492,14 @@ static inline void local_r4k_flush_cache_range(void * args)
if (!(has_valid_asid(vma->vm_mm)))
return;
- r4k_blast_dcache();
+ /*
+ * If dcache can alias, we must blast it since mapping is changing.
+ * If executable, we must ensure any dirty lines are written back far
+ * enough to be visible to icache.
+ */
+ if (cpu_has_dc_aliases || (exec && !cpu_has_ic_fills_f_dc))
+ r4k_blast_dcache();
+ /* If executable, blast stale lines from icache */
if (exec)
r4k_blast_icache();
}
@@ -502,7 +509,7 @@ static void r4k_flush_cache_range(struct vm_area_struct *vma,
{
int exec = vma->vm_flags & VM_EXEC;
- if (cpu_has_dc_aliases || (exec && !cpu_has_ic_fills_f_dc))
+ if (cpu_has_dc_aliases || exec)
r4k_on_each_cpu(local_r4k_flush_cache_range, vma);
}
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 7e5fa0938c21..6c6a843b0d17 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -196,7 +196,7 @@ void copy_to_user_page(struct vm_area_struct *vma,
if (cpu_has_dc_aliases)
SetPageDcacheDirty(page);
}
- if ((vma->vm_flags & VM_EXEC) && !cpu_has_ic_fills_f_dc)
+ if (vma->vm_flags & VM_EXEC)
flush_cache_page(vma, vaddr, page_to_pfn(page));
}