From patchwork Mon Dec 16 16:37:46 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jordan Crouse X-Patchwork-Id: 11294599 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 E5D1A1593 for ; Mon, 16 Dec 2019 16:38:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C2ACF20726 for ; Mon, 16 Dec 2019 16:38:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="Gti3OzSy" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726445AbfLPQia (ORCPT ); Mon, 16 Dec 2019 11:38:30 -0500 Received: from mail25.static.mailgun.info ([104.130.122.25]:13320 "EHLO mail25.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726191AbfLPQiG (ORCPT ); Mon, 16 Dec 2019 11:38:06 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1576514285; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=Vr7DeB6UN1uAvIEGB/iA7hx6Y0Q4rdMGj2xmO945Nsw=; b=Gti3OzSyO504AsFcnMO+BSoRAUju9kmJyv/Epg3jk/Lo1BiYRt0fuuDz/4coV5ymtlCjsow9 q+6D0Hp1A9bQh/onGrJdieOsgkJKrOazdacmFX5foQzHzGESukKAUsiaKD3VsZ7HNsLdLc4V 9MmgusrheVfmz9gWxbHw3N+hqmo= X-Mailgun-Sending-Ip: 104.130.122.25 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== 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 5df7b2ea.7f6221e54490-smtp-out-n03; Mon, 16 Dec 2019 16:38:02 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id D1352C447A3; Mon, 16 Dec 2019 16:37:59 +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 DE5A9C433CB; Mon, 16 Dec 2019 16:37:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org DE5A9C433CB 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 Cc: robin.murphy@arm.com, will@kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, Sean Paul , dri-devel@lists.freedesktop.org, Sam Ravnborg , Fritz Koenig , David Airlie , Joerg Roedel , Allison Randal , AngeloGioacchino Del Regno , Thomas Gleixner , Douglas Anderson , Rob Clark , Greg Kroah-Hartman , Jeffrey Hugo , Wen Yang , Alexios Zavras , Jeykumar Sankaran , zhengbin , linux-kernel@vger.kernel.org, Brian Masney , Drew Davenport , Georgi Djakov , freedreno@lists.freedesktop.org, Ben Dooks , Daniel Vetter Subject: [PATCH v3 0/5] iommu/arm-smmu: Split pagetable support for arm-smmu-v2 Date: Mon, 16 Dec 2019 09:37:46 -0700 Message-Id: <1576514271-15687-1-git-send-email-jcrouse@codeaurora.org> X-Mailer: git-send-email 2.7.4 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Another refresh to support split pagetables for Adreno GPUs as part of an incremental process to enable per-context pagetables. 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. This patchset adds split pagetable support if requested by the domain owner via the DOMAIN_ATTR_SPLIT_TABLES attribute. If the attribute is non zero at attach time, the implementation will set up the TTBR0 and TTBR1 spaces with identical configurations and program the domain pagetable into the TTBR1 register. The TTBR0 register will be unused. The driver can determine if split pagetables were 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. These patches are on based on top of linux-next-20191216 with [1], [2], and [3] from Robin on the iommu list. Change log: v3: Remove the implementation specific and make split pagetable support part of the generic configuration [1] https://lists.linuxfoundation.org/pipermail/iommu/2019-October/039718.html [2] https://lists.linuxfoundation.org/pipermail/iommu/2019-October/039719.html [3] https://lists.linuxfoundation.org/pipermail/iommu/2019-October/039720.html Jordan Crouse (5): iommu: Add DOMAIN_ATTR_SPLIT_TABLES iommu/arm-smmu: Add support for split pagetables 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 | 37 +++++------------------ 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 | 40 +++++++++++++++++++++---- drivers/iommu/arm-smmu.h | 45 ++++++++++++++++++++++++---- include/linux/iommu.h | 1 + 21 files changed, 215 insertions(+), 153 deletions(-)