From patchwork Fri Mar 22 22:34:58 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Varun Sethi X-Patchwork-Id: 230286 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 1DFE32C06A3 for ; Sat, 23 Mar 2013 09:45:17 +1100 (EST) Received: from va3outboundpool.messaging.microsoft.com (va3ehsobe002.messaging.microsoft.com [216.32.180.12]) (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 EC3882C0127 for ; Sat, 23 Mar 2013 09:43:29 +1100 (EST) Received: from mail9-va3-R.bigfish.com (10.7.14.230) by VA3EHSOBE007.bigfish.com (10.7.40.11) with Microsoft SMTP Server id 14.1.225.23; Fri, 22 Mar 2013 22:43:25 +0000 Received: from mail9-va3 (localhost [127.0.0.1]) by mail9-va3-R.bigfish.com (Postfix) with ESMTP id AC2F7E0164; Fri, 22 Mar 2013 22:43:25 +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 mail9-va3 (localhost.localdomain [127.0.0.1]) by mail9-va3 (MessageSwitch) id 1363992203600182_30785; Fri, 22 Mar 2013 22:43:23 +0000 (UTC) Received: from VA3EHSMHS042.bigfish.com (unknown [10.7.14.228]) by mail9-va3.bigfish.com (Postfix) with ESMTP id 68A662C004F; Fri, 22 Mar 2013 22:43:23 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by VA3EHSMHS042.bigfish.com (10.7.99.52) with Microsoft SMTP Server (TLS) id 14.1.225.23; Fri, 22 Mar 2013 22:43:17 +0000 Received: from az84smr01.freescale.net (10.64.34.197) by 039-SN1MMR1-005.039d.mgd.msft.net (10.84.1.17) with Microsoft SMTP Server (TLS) id 14.2.328.11; Fri, 22 Mar 2013 22:43:16 +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 r2MMgeTa012836; Fri, 22 Mar 2013 15:43:12 -0700 From: Varun Sethi To: , , , , , , , Subject: [PATCH 2/5 v10] powerpc: Add iommu domain pointer to device archdata Date: Sat, 23 Mar 2013 04:04:58 +0530 Message-ID: <1363991700-21454-4-git-send-email-Varun.Sethi@freescale.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1363991700-21454-1-git-send-email-Varun.Sethi@freescale.com> References: <1363991700-21454-1-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 --- - no change in v10. - Added CONFIG_IOMMU_API in v9. 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