From patchwork Wed Mar 13 18:45:07 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Varun Sethi X-Patchwork-Id: 227322 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from ozlabs.org (localhost [IPv6:::1]) by ozlabs.org (Postfix) with ESMTP id AE1F02C00FD for ; Thu, 14 Mar 2013 05:54:44 +1100 (EST) Received: from co1outboundpool.messaging.microsoft.com (co1ehsobe006.messaging.microsoft.com [216.32.180.189]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (Client CN "mail.global.frontbridge.com", Issuer "Microsoft Secure Server Authority" (not verified)) by ozlabs.org (Postfix) with ESMTPS id CB0D22C00EB for ; Thu, 14 Mar 2013 05:53:03 +1100 (EST) Received: from mail12-co1-R.bigfish.com (10.243.78.241) by CO1EHSOBE009.bigfish.com (10.243.66.72) with Microsoft SMTP Server id 14.1.225.23; Wed, 13 Mar 2013 18:52:59 +0000 Received: from mail12-co1 (localhost [127.0.0.1]) by mail12-co1-R.bigfish.com (Postfix) with ESMTP id 132AA40097; Wed, 13 Mar 2013 18:52:59 +0000 (UTC) X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPV:NLI; H:mail.freescale.net; RD:none; EFVD:NLI X-SpamScore: 0 X-BigFish: VS0(zzzz1f42h1ee6h1de0h1202h1e76h1d1ah1d2ahzz8275bhz2dh2a8h668h839he5bhf0ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1155h) Received: from mail12-co1 (localhost.localdomain [127.0.0.1]) by mail12-co1 (MessageSwitch) id 1363200777233045_29999; Wed, 13 Mar 2013 18:52:57 +0000 (UTC) Received: from CO1EHSMHS022.bigfish.com (unknown [10.243.78.239]) by mail12-co1.bigfish.com (Postfix) with ESMTP id 340FE800EA; Wed, 13 Mar 2013 18:52:57 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by CO1EHSMHS022.bigfish.com (10.243.66.32) with Microsoft SMTP Server (TLS) id 14.1.225.23; Wed, 13 Mar 2013 18:52:56 +0000 Received: from az84smr01.freescale.net (10.64.34.197) by 039-SN1MMR1-003.039d.mgd.msft.net (10.84.1.16) with Microsoft SMTP Server (TLS) id 14.2.328.11; Wed, 13 Mar 2013 18:52:55 +0000 Received: from nmglablinux27.zin33.ap.freescale.net (nmglablinux28.zin33.ap.freescale.net [10.232.20.211]) by az84smr01.freescale.net (8.14.3/8.14.0) with ESMTP id r2DIqakN028881; Wed, 13 Mar 2013 11:52:51 -0700 From: Varun Sethi To: , , , , , , , Subject: [PATCH 2/5 v9] powerpc: Add iommu domain pointer to device archdata Date: Thu, 14 Mar 2013 00:15:07 +0530 Message-ID: <1363200310-11513-3-git-send-email-Varun.Sethi@freescale.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1363200310-11513-1-git-send-email-Varun.Sethi@freescale.com> References: <1363200310-11513-1-git-send-email-Varun.Sethi@freescale.com> MIME-Version: 1.0 X-OriginatorOrg: freescale.com Cc: Varun Sethi X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Add an iommu domain pointer to device (powerpc) archdata. Devices are attached to iommu domains and this pointer provides a mechanism to correlate between a device and the associated iommu domain. This field is set when a device is attached to a domain. Signed-off-by: Varun Sethi --- arch/powerpc/include/asm/device.h | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/include/asm/device.h b/arch/powerpc/include/asm/device.h index 77e97dd..2d5c1c5 100644 --- a/arch/powerpc/include/asm/device.h +++ b/arch/powerpc/include/asm/device.h @@ -28,6 +28,12 @@ struct dev_archdata { void *iommu_table_base; } dma_data; + /* IOMMU domain information pointer. This would be set + * when this device is attached to an iommu_domain. + */ +#ifdef CONFIG_IOMMU_API + void *iommu_domain; +#endif #ifdef CONFIG_SWIOTLB dma_addr_t max_direct_dma_addr; #endif