ARC: [mm] optimise VIPT dcache aliasing 1/x
flush_cache_page() - kills icache only if page is executable
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
diff --git a/arch/arc/mm/cache_arc700.c b/arch/arc/mm/cache_arc700.c
index 03012a2..4e54ef5 100644
--- a/arch/arc/mm/cache_arc700.c
+++ b/arch/arc/mm/cache_arc700.c
@@ -679,7 +679,12 @@
{
unsigned int paddr = pfn << PAGE_SHIFT;
- __sync_icache_dcache(paddr, u_vaddr, PAGE_SIZE);
+ u_vaddr &= PAGE_MASK;
+
+ ___flush_dcache_page(paddr, u_vaddr);
+
+ if (vma->vm_flags & VM_EXEC)
+ __inv_icache_page(paddr, u_vaddr);
}
void flush_cache_range(struct vm_area_struct *vma, unsigned long start,