From patchwork Thu Jan 2 11:02:06 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sharat Masetty X-Patchwork-Id: 11315591 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 0C9F1109A for ; Thu, 2 Jan 2020 11:02:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DF9DF21655 for ; Thu, 2 Jan 2020 11:02:28 +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="vqtR9tmy" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728106AbgABLC2 (ORCPT ); Thu, 2 Jan 2020 06:02:28 -0500 Received: from mail25.static.mailgun.info ([104.130.122.25]:51448 "EHLO mail25.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728044AbgABLC2 (ORCPT ); Thu, 2 Jan 2020 06:02:28 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1577962947; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=tkKCPLe79npIk6waelmBeTcR6XDop2zkLNOKqt/0Dq0=; b=vqtR9tmy8Bzb2zM8BZPnIcLzZgo8YCHm5IFn1xDUdajTkmkRfqeZ6zlgTBBjoeY/cFHhV6lZ t5xOSzcjxXfhQswauhJWgrLmgUT1jvt6MRdTRezQ1fHuwM5aQ9J+3mBp/l0tZvgpGUc7+7YU f45RTAI+nRRmXKz6mKPVkxeeq3Q= 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 5e0dcdc2.7f9514158618-smtp-out-n01; Thu, 02 Jan 2020 11:02:26 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 4CBD6C447A0; Thu, 2 Jan 2020 11:02:26 +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 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from smasetty-linux.qualcomm.com (blr-c-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: smasetty) by smtp.codeaurora.org (Postfix) with ESMTPSA id C9813C43383; Thu, 2 Jan 2020 11:02:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org C9813C43383 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=smasetty@codeaurora.org From: Sharat Masetty To: freedreno@lists.freedesktop.org Cc: dri-devel@freedesktop.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, will@kernel.org, robin.murphy@arm.com, joro@8bytes.org, iommu@lists.linux-foundation.org, jcrouse@codeaurora.org, saiprakash.ranjan@codeaurora.org, Sharat Masetty Subject: [PATCH v2 0/7] drm/msm/a6xx: System Cache Support Date: Thu, 2 Jan 2020 16:32:06 +0530 Message-Id: <1577962933-13577-1-git-send-email-smasetty@codeaurora.org> X-Mailer: git-send-email 1.9.1 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Some hardware variants contain a system level cache or the last level cache(llc). This cache is typically a large block which is shared by multiple clients on the SOC. GPU uses the system cache to cache both the GPU data buffers(like textures) as well the SMMU pagetables. This helps with improved render performance as well as lower power consumption by reducing the bus traffic to the system memory. The system cache architecture allows the cache to be split into slices which then be used by multiple SOC clients. This patch series is an effort to enable and use two of those slices perallocated for the GPU, one for the GPU data buffers and another for the GPU SMMU hardware pagetables. v2: Code reviews and rebased code on top of Jordan's split pagetables series To enable the system cache driver, add [1] to your stack if not already present. Please review. [1] https://lore.kernel.org/patchwork/patch/1165298/ Jordan Crouse (3): iommu/arm-smmu: Pass io_pgtable_cfg to impl specific init_context drm/msm: Attach the IOMMU device during initialization drm/msm: Refactor address space initialization Sharat Masetty (3): drm: msm: a6xx: Properly free up the iommu objects drm/msm: rearrange the gpu_rmw() function drm/msm/a6xx: Add support for using system cache(LLC) Vivek Gautam (1): iommu/arm-smmu: Add domain attribute for QCOM system cache 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 | 124 +++++++++++++++++++++++++++++++ drivers/gpu/drm/msm/adreno/a6xx_gpu.h | 3 + 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 | 19 ++--- drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c | 19 ++--- drivers/gpu/drm/msm/disp/mdp5/mdp5_cfg.c | 4 - drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 19 +++-- drivers/gpu/drm/msm/msm_drv.c | 8 ++ drivers/gpu/drm/msm/msm_drv.h | 9 +-- drivers/gpu/drm/msm/msm_gem_vma.c | 37 ++------- drivers/gpu/drm/msm/msm_gpu.c | 49 +----------- drivers/gpu/drm/msm/msm_gpu.h | 9 +-- drivers/gpu/drm/msm/msm_gpummu.c | 7 -- drivers/gpu/drm/msm/msm_iommu.c | 22 +++--- drivers/gpu/drm/msm/msm_mmu.h | 5 +- drivers/iommu/arm-smmu-impl.c | 3 +- drivers/iommu/arm-smmu-qcom.c | 10 +++ drivers/iommu/arm-smmu.c | 25 +++++-- drivers/iommu/arm-smmu.h | 4 +- include/linux/iommu.h | 1 + 25 files changed, 269 insertions(+), 158 deletions(-) --- 1.9.1