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authorVineet Gupta <vgupta@synopsys.com>2013-05-16 12:23:31 +0530
committerVineet Gupta <vgupta@synopsys.com>2013-06-22 19:23:18 +0530
commit5971bc719d1e329401412ae03ab83c2e4768cd2e (patch)
tree43f23b617cc6551f1153b876ff07060ab7b54885 /arch/arc
parent29b93c68bf81d2aad1030e989d844cff9f3ba99a (diff)
downloadop-kernel-dev-5971bc719d1e329401412ae03ab83c2e4768cd2e.zip
op-kernel-dev-5971bc719d1e329401412ae03ab83c2e4768cd2e.tar.gz
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>
Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/mm/cache_arc700.c7
1 files changed, 6 insertions, 1 deletions
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 @@ void flush_cache_page(struct vm_area_struct *vma, unsigned long u_vaddr,
{
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,
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