Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753934AbaBRW6z (ORCPT ); Tue, 18 Feb 2014 17:58:55 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:51159 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753406AbaBRWrN (ORCPT ); Tue, 18 Feb 2014 17:47:13 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Vinayak Kale , Will Deacon , Catalin Marinas Subject: [PATCH 3.13 16/40] arm64: add DSB after icache flush in __flush_icache_all() Date: Tue, 18 Feb 2014 14:47:17 -0800 Message-Id: <20140218224433.794602875@linuxfoundation.org> X-Mailer: git-send-email 1.8.5.1.163.gd7aced9 In-Reply-To: <20140218224433.337299968@linuxfoundation.org> References: <20140218224433.337299968@linuxfoundation.org> User-Agent: quilt/0.61-1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.13-stable review patch. If anyone has any objections, please let me know. ------------------ From: Vinayak Kale commit 5044bad43ee573d0b6d90e3ccb7a40c2c7d25eb4 upstream. 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 Acked-by: Will Deacon Signed-off-by: Catalin Marinas Signed-off-by: Greg Kroah-Hartman --- arch/arm64/include/asm/cacheflush.h | 1 + 1 file changed, 1 insertion(+) --- a/arch/arm64/include/asm/cacheflush.h +++ b/arch/arm64/include/asm/cacheflush.h @@ -116,6 +116,7 @@ extern void flush_dcache_page(struct pag static inline void __flush_icache_all(void) { asm("ic ialluis"); + dsb(); } #define flush_dcache_mmap_lock(mapping) \ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/