From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753539AbbGAJOQ (ORCPT ); Wed, 1 Jul 2015 05:14:16 -0400 Received: from hqemgate14.nvidia.com ([216.228.121.143]:5414 "EHLO hqemgate14.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750798AbbGAJOG (ORCPT ); Wed, 1 Jul 2015 05:14:06 -0400 X-PGP-Universal: processed; by hqnvupgp08.nvidia.com on Wed, 01 Jul 2015 02:14:05 -0700 From: Alexandre Courbot To: Thierry Reding , Stephen Warren CC: linux-arm-kernel@lists.infradead.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, gnurou@gmail.com, Alexandre Courbot Subject: [PATCH 1/4] ARM: tegra: Add IOMMU node to GK20A Date: Wed, 1 Jul 2015 18:13:45 +0900 Message-ID: <1435742028-8237-2-git-send-email-acourbot@nvidia.com> X-Mailer: git-send-email 2.4.4 In-Reply-To: <1435742028-8237-1-git-send-email-acourbot@nvidia.com> References: <1435742028-8237-1-git-send-email-acourbot@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Nouveau can make use of the IOMMU to make physical appear linear in the GPU address space. Signed-off-by: Alexandre Courbot --- arch/arm/boot/dts/tegra124.dtsi | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi index 13cc7ca5e031..bffe90236bf8 100644 --- a/arch/arm/boot/dts/tegra124.dtsi +++ b/arch/arm/boot/dts/tegra124.dtsi @@ -188,6 +188,9 @@ clock-names = "gpu", "pwr"; resets = <&tegra_car 184>; reset-names = "gpu"; + + iommus = <&mc TEGRA_SWGROUP_GPU>; + status = "disabled"; }; -- 2.4.4