Commit 5044bad4 authored Feb 05, 2014 by Vinayak Kale Committed by Catalin Marinas Feb 05, 2014

arm64: add DSB after icache flush in __flush_icache_all()



Add DSB after icache flush to complete the cache maintenance operation.
The function __flush_icache_all() is used only for user space mappings
and an ISB is not required because of an exception return before executing
user instructions. An exception return would behave like an ISB.

Signed-off-by: Vinayak Kale <vkale@apm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

parent 40507403

arch/arm64/include/asm/cacheflush.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -116,6 +116,7 @@ extern void flush_dcache_page(struct page *);
		static inline void __flush_icache_all(void)
		{
		asm("ic ialluis");
		dsb();
		}

		#define flush_dcache_mmap_lock(mapping) \