From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754329Ab2ISOXj (ORCPT ); Wed, 19 Sep 2012 10:23:39 -0400 Received: from gate.crashing.org ([63.228.1.57]:51597 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752285Ab2ISOXi convert rfc822-to-8bit (ORCPT ); Wed, 19 Sep 2012 10:23:38 -0400 Subject: Re: [RFC][PATCH 1/3] iommu/fsl: Store iommu domain information pointer in archdata. Mime-Version: 1.0 (Apple Message framework v1278) Content-Type: text/plain; charset=us-ascii From: Kumar Gala In-Reply-To: <1348060632-12997-2-git-send-email-b16395@freescale.com> Date: Wed, 19 Sep 2012 08:50:14 -0500 Cc: , , , , Varun Sethi Content-Transfer-Encoding: 8BIT Message-Id: <5BDB4D18-CB0D-4EBA-B38F-A278B7C00A61@kernel.crashing.org> References: <1348060632-12997-1-git-send-email-b16395@freescale.com> <1348060632-12997-2-git-send-email-b16395@freescale.com> To: "" X-Mailer: Apple Mail (2.1278) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sep 19, 2012, at 8:17 AM, wrote: > From: Varun Sethi > > Add a new field in the device (powerpc) archdata structure for storing iommu domain > information pointer. This pointer is stored when the device is attached to a particular > domain. > > Signed-off-by: Varun Sethi > --- > arch/powerpc/include/asm/device.h | 4 ++++ > 1 files changed, 4 insertions(+), 0 deletions(-) Not too familiar, but what does the IBM Server IOMMU do for iommu_domain? > > diff --git a/arch/powerpc/include/asm/device.h b/arch/powerpc/include/asm/device.h > index 77e97dd..6dc79fe 100644 > --- a/arch/powerpc/include/asm/device.h > +++ b/arch/powerpc/include/asm/device.h > @@ -28,6 +28,10 @@ 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. > + */ > + void *iommu_domain; > #ifdef CONFIG_SWIOTLB > dma_addr_t max_direct_dma_addr; > #endif > -- > 1.7.4.1 > > > -- > 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/