From patchwork Fri Oct 1 14:34:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris Brezillon X-Patchwork-Id: 12530743 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5CF6EC43219 for ; Fri, 1 Oct 2021 14:34:45 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 26ED96135E for ; Fri, 1 Oct 2021 14:34:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 26ED96135E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 894566ED02; Fri, 1 Oct 2021 14:34:36 +0000 (UTC) Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) by gabe.freedesktop.org (Postfix) with ESMTPS id C07166ECFF for ; Fri, 1 Oct 2021 14:34:35 +0000 (UTC) Received: from localhost.localdomain (unknown [IPv6:2a01:e0a:2c:6930:5cf4:84a1:2763:fe0d]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: bbrezillon) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id D77351F457A9; Fri, 1 Oct 2021 15:34:33 +0100 (BST) From: Boris Brezillon To: Joerg Roedel , iommu@lists.linux-foundation.org, Rob Herring , Tomeu Vizoso , Alyssa Rosenzweig , Steven Price , Robin Murphy , Will Deacon , linux-arm-kernel@lists.infradead.org Cc: dri-devel@lists.freedesktop.org, Boris Brezillon Subject: [PATCH v2 0/5] drm/panfrost: Add extra GPU-usage flags Date: Fri, 1 Oct 2021 16:34:22 +0200 Message-Id: <20211001143427.1564786-1-boris.brezillon@collabora.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hello, This is a follow-up of [1], which was adding the read/write restrictions on GPU buffers. Robin and Steven suggested that I add a flag to restrict the shareability domain on GPU-private buffers, so here it is. As you can see, the first patch is flagges RFC, since I'm not sure adding a new IOMMU_ flag is the right solution, but IOMMU_CACHE doesn't feel like a good fit either. Please let me know if you have better ideas. Regards, Boris [1]https://patchwork.kernel.org/project/dri-devel/patch/20210930184723.1482426-1-boris.brezillon@collabora.com/ Boris Brezillon (5): [RFC]iommu: Add a IOMMU_DEVONLY protection flag [RFC]iommu/io-pgtable-arm: Take the DEVONLY flag into account on ARM_MALI_LPAE drm/panfrost: Add PANFROST_BO_NO{READ,WRITE} flags drm/panfrost: Add a PANFROST_BO_GPUONLY flag drm/panfrost: Bump the driver version to 1.3 drivers/gpu/drm/panfrost/panfrost_drv.c | 15 +++++++++++++-- drivers/gpu/drm/panfrost/panfrost_gem.c | 3 +++ drivers/gpu/drm/panfrost/panfrost_gem.h | 3 +++ drivers/gpu/drm/panfrost/panfrost_mmu.c | 11 ++++++++++- drivers/iommu/io-pgtable-arm.c | 25 +++++++++++++++++-------- include/linux/iommu.h | 7 +++++++ include/uapi/drm/panfrost_drm.h | 3 +++ 7 files changed, 56 insertions(+), 11 deletions(-)