From patchwork Tue Jan 28 22:00:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jordan Crouse X-Patchwork-Id: 11355263 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B640E112B for ; Tue, 28 Jan 2020 22:01:01 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 8345921739 for ; Tue, 28 Jan 2020 22:01:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="uqml51eM"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="wUDJk1Gi" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8345921739 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=MPzXdeOk+1rhIHTaI4haWrWHen6qYZbhGSePjy5Whlg=; b=uqm l51eMIGCCO1K8r9+UHnomJt5UrsVpjGM3MTehdSnVWhKw0JAnK+WK5cmEo/3C7qKjPcOIo1xp+cf0 on+QBoev0V+L1N0shBw3PvQFZ1nb6UFoRYY14iFgK0O974lOXjGlL7STzD7Vp5mGO8kP6ESd/YGQP 1Djvd9rYwXNhLIdHNn5qa3Mg3M8+LJGc59I/5EhW8l/cxJYRDH2OTC0VD8d+Z3bfp9BGdPCC99w0s loyOHjqQQwe5y6NFm+68qwZbE7xjHNDsBZVelqsDMxMFBHz8SSa3n6gJ3NLMrwpslBL5rDGQ7doL8 9JRiGOIaDndNQKZcO5uk1s6kOJ3n4bA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iwYup-0003wa-Ev; Tue, 28 Jan 2020 22:00:59 +0000 Received: from mail25.static.mailgun.info ([104.130.122.25]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iwYua-0003jr-6e for linux-arm-kernel@lists.infradead.org; Tue, 28 Jan 2020 22:00:46 +0000 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1580248845; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=Mf6gK8Pui4SYiZYwgie2fpyV4QvxBlRoxDwIb21t6R0=; b=wUDJk1GiF7vPm2aaPE/vLTS2+48SZJ7v/b55y2C15q0zBPIxIDQTHOkxX/Jt4F+DEZkC6lEs dDilwmgNUn3Xq7g3bh1MIP4Vw4vnCrvlins8p62fzJ4EtGC5OksVabF6niFATzQMwxUBvGg9 aKPa9EYhB1N+O+PxLLQlOXMewes= X-Mailgun-Sending-Ip: 104.130.122.25 X-Mailgun-Sid: WyJiYzAxZiIsICJsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5e30af05.7f1ad865d500-smtp-out-n01; Tue, 28 Jan 2020 22:00:37 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 44729C433A2; Tue, 28 Jan 2020 22:00:35 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from jcrouse1-lnx.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: jcrouse) by smtp.codeaurora.org (Postfix) with ESMTPSA id 914EAC43383; Tue, 28 Jan 2020 22:00:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 914EAC43383 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=jcrouse@codeaurora.org From: Jordan Crouse To: iommu@lists.linux-foundation.org Subject: [PATCH v5 0/5] iommu/arm-smmu: Split pagetable support for arm-smmu-v2 Date: Tue, 28 Jan 2020 15:00:14 -0700 Message-Id: <1580248819-12644-1-git-send-email-jcrouse@codeaurora.org> X-Mailer: git-send-email 2.7.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200128_140045_141936_38525121 X-CRM114-Status: GOOD ( 13.33 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [104.130.122.25 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jeffrey Hugo , David Airlie , dri-devel@lists.freedesktop.org, Bjorn Andersson , AngeloGioacchino Del Regno , Sam Ravnborg , Wen Yang , will@kernel.org, Joerg Roedel , Ben Dooks , linux-arm-kernel@lists.infradead.org, Wambui Karuga , freedreno@lists.freedesktop.org, Fritz Koenig , linux-arm-msm@vger.kernel.org, Sharat Masetty , Jeykumar Sankaran , Alexios Zavras , Thomas Gleixner , Sean Paul , Allison Randal , Enrico Weigelt , Greg Kroah-Hartman , Douglas Anderson , linux-kernel@vger.kernel.org, zhengbin , Rob Clark , Daniel Vetter , Drew Davenport , Brian Masney , robin.murphy@arm.com, Georgi Djakov MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org This is another iteration for the split pagetable support based on the suggestions from Robin and Will [1]. Background: In order to support per-context pagetables the GPU needs to enable split tables so that we can store global buffers in the TTBR1 space leaving the GPU free to program the TTBR0 register with the address of a context specific pagetable. If the DOMAIN_ATTR_SPLIT_TABLES attribute is set on the domain before attaching, the context bank assigned to the domain will be programmed to allow translations in the TTBR1 space. Translations in the TTBR0 region will be disallowed because, as Robin pointe out, having a un-programmed TTBR0 register is dangerous. The driver can determine if TTBR1 was successfully programmed by querying DOMAIN_ATTR_SPLIT_TABLES after attaching. The domain geometry will also be updated to reflect the virtual address space for the TTBR1 range. Upcoming changes will allow auxiliary domains to be attached to the device which will enable and program TTBR0. This patchset is based on top of linux-next-20200127. Change log: v4: Only program TTBR1 when split pagetables are requested. TTBR0 will be enabled later when an auxiliary domain is attached v3: Remove the implementation specific and make split pagetable support part of the generic configuration [1] https://lists.linuxfoundation.org/pipermail/iommu/2020-January/041373.html Jordan Crouse (5): iommu: Add DOMAIN_ATTR_SPLIT_TABLES iommu/arm-smmu: Add support for TTBR1 drm/msm: Attach the IOMMU device during initialization drm/msm: Refactor address space initialization drm/msm/a6xx: Support split pagetables drivers/gpu/drm/msm/adreno/a2xx_gpu.c | 16 ++++++++++ drivers/gpu/drm/msm/adreno/a3xx_gpu.c | 1 + drivers/gpu/drm/msm/adreno/a4xx_gpu.c | 1 + drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 1 + drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 51 ++++++++++++++++++++++++++++++++ drivers/gpu/drm/msm/adreno/adreno_gpu.c | 23 ++++++++++---- drivers/gpu/drm/msm/adreno/adreno_gpu.h | 8 +++++ drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 18 ++++------- drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c | 18 +++++------ drivers/gpu/drm/msm/disp/mdp5/mdp5_cfg.c | 4 --- drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 18 +++++------ drivers/gpu/drm/msm/msm_drv.h | 8 ++--- drivers/gpu/drm/msm/msm_gem_vma.c | 36 ++++------------------ drivers/gpu/drm/msm/msm_gpu.c | 49 ++---------------------------- drivers/gpu/drm/msm/msm_gpu.h | 4 +-- drivers/gpu/drm/msm/msm_gpummu.c | 6 ---- drivers/gpu/drm/msm/msm_iommu.c | 18 ++++++----- drivers/gpu/drm/msm/msm_mmu.h | 1 - drivers/iommu/arm-smmu.c | 48 +++++++++++++++++++++++++----- drivers/iommu/arm-smmu.h | 22 ++++++++++---- include/linux/iommu.h | 2 ++ 21 files changed, 198 insertions(+), 155 deletions(-)