From mboxrd@z Thu Jan 1 00:00:00 1970 From: will.deacon@arm.com (Will Deacon) Date: Wed, 5 Feb 2014 10:13:26 +0000 Subject: [PATCH] arm64: add DSB after icache flush in __flush_icache_all() In-Reply-To: <1391592876-18627-1-git-send-email-vkale@apm.com> References: <1391592876-18627-1-git-send-email-vkale@apm.com> Message-ID: <20140205101326.GC28623@mudshark.cambridge.arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, Feb 05, 2014 at 09:34:36AM +0000, Vinayak Kale wrote: > 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 > --- > arch/arm64/include/asm/cacheflush.h | 1 + > 1 file changed, 1 insertion(+) Acked-by: Will Deacon Will