From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on archive.lwn.net X-Spam-Level: X-Spam-Status: No, score=-5.7 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by archive.lwn.net (Postfix) with ESMTP id DD2F47D90F for ; Thu, 13 Jun 2019 16:10:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388635AbfFMQKo (ORCPT ); Thu, 13 Jun 2019 12:10:44 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:18144 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1731247AbfFMInp (ORCPT ); Thu, 13 Jun 2019 04:43:45 -0400 Received: from DGGEMS403-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 018BD55A1FCA4A250BE7; Thu, 13 Jun 2019 16:43:41 +0800 (CST) Received: from HGHY4L002753561.china.huawei.com (10.133.215.186) by DGGEMS403-HUB.china.huawei.com (10.3.19.203) with Microsoft SMTP Server id 14.3.439.0; Thu, 13 Jun 2019 16:43:33 +0800 From: Zhen Lei To: Jean-Philippe Brucker , John Garry , Robin Murphy , Will Deacon , Joerg Roedel , Jonathan Corbet , linux-doc , Sebastian Ott , Gerald Schaefer , "Martin Schwidefsky" , Heiko Carstens , Benjamin Herrenschmidt , Paul Mackerras , "Michael Ellerman" , Tony Luck , Fenghua Yu , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H . Peter Anvin" , David Woodhouse , iommu , linux-kernel , linux-s390 , linuxppc-dev , x86 , linux-ia64 CC: Zhen Lei Subject: [PATCH v9 7/7] ia64: hide build option IOMMU_DEFAULT_PASSTHROUGH Date: Thu, 13 Jun 2019 16:42:40 +0800 Message-ID: <20190613084240.16768-8-thunder.leizhen@huawei.com> X-Mailer: git-send-email 2.21.0.windows.1 In-Reply-To: <20190613084240.16768-1-thunder.leizhen@huawei.com> References: <20190613084240.16768-1-thunder.leizhen@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.133.215.186] X-CFilter-Loop: Reflected Sender: linux-doc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org The DMA mode PASSTHROUGH is not used on ia64. Signed-off-by: Zhen Lei --- drivers/iommu/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index 70741fd73b07785..63506f1cad3d149 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -91,7 +91,7 @@ choice config IOMMU_DEFAULT_PASSTHROUGH bool "passthrough" - depends on !S390_IOMMU + depends on (!S390_IOMMU && !IA64) help In this mode, the DMA access through IOMMU without any addresses translation. That means, the wrong or illegal DMA access can not -- 1.8.3