From patchwork Fri Oct 6 13:31:59 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jean-Philippe Brucker X-Patchwork-Id: 822455 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3y7r9r6kd0z9t34 for ; Sat, 7 Oct 2017 00:30:40 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752389AbdJFNah (ORCPT ); Fri, 6 Oct 2017 09:30:37 -0400 Received: from foss.arm.com ([217.140.101.70]:33164 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752295AbdJFNag (ORCPT ); Fri, 6 Oct 2017 09:30:36 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id CAFF51688; Fri, 6 Oct 2017 06:30:35 -0700 (PDT) Received: from e106794-lin.cambridge.arm.com (e106794-lin.cambridge.arm.com [10.1.211.72]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id F0E263F578; Fri, 6 Oct 2017 06:30:30 -0700 (PDT) From: Jean-Philippe Brucker To: linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org, devicetree@vger.kernel.org, iommu@lists.linux-foundation.org Cc: joro@8bytes.org, robh+dt@kernel.org, mark.rutland@arm.com, catalin.marinas@arm.com, will.deacon@arm.com, lorenzo.pieralisi@arm.com, hanjun.guo@linaro.org, sudeep.holla@arm.com, rjw@rjwysocki.net, lenb@kernel.org, robin.murphy@arm.com, bhelgaas@google.com, alex.williamson@redhat.com, tn@semihalf.com, liubo95@huawei.com, thunder.leizhen@huawei.com, xieyisheng1@huawei.com, gabriele.paoloni@huawei.com, nwatters@codeaurora.org, okaya@codeaurora.org, rfranz@cavium.com, dwmw2@infradead.org, jacob.jun.pan@linux.intel.com, yi.l.liu@intel.com, ashok.raj@intel.com, robdclark@gmail.com Subject: [RFCv2 PATCH 32/36] iommu/arm-smmu-v3: Hook ATC invalidation to process ops Date: Fri, 6 Oct 2017 14:31:59 +0100 Message-Id: <20171006133203.22803-33-jean-philippe.brucker@arm.com> X-Mailer: git-send-email 2.13.3 In-Reply-To: <20171006133203.22803-1-jean-philippe.brucker@arm.com> References: <20171006133203.22803-1-jean-philippe.brucker@arm.com> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org The core calls us when a process is modified. Perform the required ATC invalidations. Signed-off-by: Jean-Philippe Brucker --- drivers/iommu/arm-smmu-v3.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index d03bec4d4b82..f591f1974228 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -2839,7 +2839,7 @@ static void arm_smmu_process_detach(struct iommu_domain *domain, arm_smmu_write_ctx_desc(smmu_domain, process->pasid, NULL); } - /* TODO: Invalidate ATC. */ + arm_smmu_atc_inv_master_all(master, process->pasid); /* TODO: Invalidate all mappings if last and not DVM. */ } @@ -2847,8 +2847,9 @@ static void arm_smmu_process_invalidate(struct iommu_domain *domain, struct iommu_process *process, unsigned long iova, size_t size) { + arm_smmu_atc_inv_domain(to_smmu_domain(domain), process->pasid, + iova, size); /* - * TODO: Invalidate ATC. * TODO: Invalidate mapping if not DVM */ } @@ -2871,7 +2872,7 @@ static void arm_smmu_process_exit(struct iommu_domain *domain, domain->process_exit(domain, master->dev, process->pasid, domain->process_exit_token); - /* TODO: inval ATC */ + arm_smmu_atc_inv_master_all(master, process->pasid); } spin_unlock(&smmu_domain->devices_lock);