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: 11294581 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 47B2417F0 for ; Mon, 16 Dec 2019 16:38:12 +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 24D63206E0 for ; Mon, 16 Dec 2019 16:38:12 +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="Ui6I3XWy" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 24D63206E0 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4EC936E81B; Mon, 16 Dec 2019 16:38:08 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail26.static.mailgun.info (mail26.static.mailgun.info [104.130.122.26]) by gabe.freedesktop.org (Postfix) with ESMTPS id 227B16E81B for ; Mon, 16 Dec 2019 16:38:06 +0000 (UTC) DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1576514287; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=Vr7DeB6UN1uAvIEGB/iA7hx6Y0Q4rdMGj2xmO945Nsw=; b=Ui6I3XWykzrFhL+sjpXa+/sFWi/6DM4mxkrC359C1d6dtEWqNKPWGzXYh6f3HAf2SkPf1Uxr /7dYFq56eV5g6nZdrPTlLOzOwxBpg5/ojT/+VlNfOwMA1MU1FM6mYp+uhaco+ovL9ldeMJq9 9ehqiQKlv6Cg+At3I05CtZsxvc8= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyJkOTU5ZSIsICJkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnIiwgImJlOWU0YSJd 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.7f1f598aff48-smtp-out-n01; Mon, 16 Dec 2019 16:38:02 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 45FC9C447B7; Mon, 16 Dec 2019 16:38:00 +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 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 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: , Cc: Jeffrey Hugo , David Airlie , dri-devel@lists.freedesktop.org, Douglas Anderson , AngeloGioacchino Del Regno , Sam Ravnborg , Thomas Gleixner , will@kernel.org, Wen Yang , Ben Dooks , linux-arm-kernel@lists.infradead.org, Brian Masney , freedreno@lists.freedesktop.org, Fritz Koenig , linux-arm-msm@vger.kernel.org, Alexios Zavras , Sean Paul , Allison Randal , Greg Kroah-Hartman , linux-kernel@vger.kernel.org, zhengbin , Drew Davenport , robin.murphy@arm.com, Georgi Djakov MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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(-)