Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755340AbaFPPik (ORCPT ); Mon, 16 Jun 2014 11:38:40 -0400 Received: from 8bytes.org ([85.214.48.195]:40279 "EHLO mail.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751468AbaFPPih (ORCPT ); Mon, 16 Jun 2014 11:38:37 -0400 Date: Mon, 16 Jun 2014 17:38:32 +0200 From: Joerg Roedel To: Will Deacon Cc: Christoffer Dall , Antonios Motakis , "alex.williamson@redhat.com" , "kvmarm@lists.cs.columbia.edu" , "iommu@lists.linux-foundation.org" , "tech@virtualopensystems.com" , "a.rigo@virtualopensystems.com" , "kvm@vger.kernel.org" , "kim.phillips@freescale.com" , "stuart.yoder@freescale.com" , "eric.auger@linaro.org" , "moderated list:ARM SMMU DRIVER" , open list Subject: Re: [RFC PATCH v6 04/20] iommu/arm-smmu: add capability IOMMU_CAP_INTR_REMAP Message-ID: <20140616153832.GC31771@8bytes.org> References: <1401987808-23596-1-git-send-email-a.motakis@virtualopensystems.com> <1401987808-23596-5-git-send-email-a.motakis@virtualopensystems.com> <20140608103129.GC3279@lvm> <20140616145344.GD18986@8bytes.org> <20140616151329.GQ16758@arm.com> <20140616152157.GB31771@8bytes.org> <20140616152526.GR16758@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140616152526.GR16758@arm.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-DSPAM-Result: Whitelisted X-DSPAM-Processed: Mon Jun 16 17:38:35 2014 X-DSPAM-Confidence: 0.9994 X-DSPAM-Probability: 0.0000 X-DSPAM-Signature: 539f0f7b20862310914250 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 16, 2014 at 04:25:26PM +0100, Will Deacon wrote: > Ok, thanks. In which case, I think this is really a combined property of > the SMMU and the interrupt controller, so we might need some extra code > so that the SMMU can check that the interrupt controller for the device > is also capable of interrupt remapping. Right, that this is part of IOMMU code has more or less historic reasons on x86. Interrupt remapping is purely implemented in the IOMMU there, so on ARM some clue-code between interrupt controler and smmu is needed. Joerg -- 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/