From patchwork Fri Jul 16 08:34:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Shameerali Kolothum Thodi X-Patchwork-Id: 478365 Delivered-To: patch@linaro.org Received: by 2002:a02:c94a:0:0:0:0:0 with SMTP id u10csp1145835jao; Fri, 16 Jul 2021 01:34:48 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxzZSV9gYnKLt7VLOJ4NP1O7G1uN2vhCmBSEC8kEKg80Dez4zaplaFu0axWpKa3cn3tJ4lq X-Received: by 2002:a05:6402:895:: with SMTP id e21mr12906003edy.9.1626424488652; Fri, 16 Jul 2021 01:34:48 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1626424488; cv=none; d=google.com; s=arc-20160816; b=r3Tbgh+v9678CXAhMAd3AKzyqq6/bg1fa9k0/oPojXz85EfF92KY8oZB4EkUM1+T5K VO56SP17S5+0I+TovdR4ghuap6IU+PRtg52ctM7uWvMWSY/4htMJVz2WJuof3Eg2h2nB Q0R8kP+EmKgFm9w4eej/ikVPuQAe70H2ztRZC7xPd1/2ZWOjHpu8AeSNfeKcV3Q+SAVS sOA8oH2uJOu+1EObHvdGUBw2e7IuVZ2U8JCB8kGQdi43TjznH7aXdSQR7GaYsfKMaS1H bQwknKefv2XihPC4TvuSGUfF8B2xoSy6Va7VQlVwxozJlI1oOoQLlJjj6oIEp+gXrZBT x5OQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=Vj66ewOlAMDdFnHS+RGM0COOJ1GgYyqfIfTQmoI6cHQ=; b=i2/46fkNsSI66EcU+Ric6NZxIcvEOgGYEmPWiAKMFgr0ZSEpSnscqIv/6sLSKu1XXo SdPqNccHu5Q+WqdU5gz49gn0iyYqWyvu3nvnhrxps/PoXuP/gpRN5xhwoxVc4CiA2jAp sM60RrI5B0fp5+O7B36Z/N0egMRM7Kpi10jAlOHdQbDr8rp6fYKG/0agjKVw0hZGtSE4 Lg7kofd6jeEoc4nntv+ILMe4sVwm3fzJJTm+8F/vsCNi7wSIyvDdwNhFApFUxTbtj9C6 8fP72LCVNfaqKj4vodk3rzVaJrfjCFntXOsj2Z99fQGdthrYqq6O+riKcf8unYz64Pqp iBmw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-acpi-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-acpi-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=huawei.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id g14si10518330eds.289.2021.07.16.01.34.48; Fri, 16 Jul 2021 01:34:48 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-acpi-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-acpi-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-acpi-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=huawei.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237576AbhGPIhm (ORCPT + 4 others); Fri, 16 Jul 2021 04:37:42 -0400 Received: from frasgout.his.huawei.com ([185.176.79.56]:3417 "EHLO frasgout.his.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237980AbhGPIhm (ORCPT ); Fri, 16 Jul 2021 04:37:42 -0400 Received: from fraeml713-chm.china.huawei.com (unknown [172.18.147.206]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4GR44z0lzMz6H7Pb; Fri, 16 Jul 2021 16:23:31 +0800 (CST) Received: from lhreml710-chm.china.huawei.com (10.201.108.61) by fraeml713-chm.china.huawei.com (10.206.15.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Fri, 16 Jul 2021 10:34:45 +0200 Received: from A2006125610.china.huawei.com (10.47.80.222) by lhreml710-chm.china.huawei.com (10.201.108.61) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Fri, 16 Jul 2021 09:34:38 +0100 From: Shameer Kolothum To: , , CC: , , , , , , , , , , Subject: [PATCH v6 0/9] ACPI/IORT: Support for IORT RMR node Date: Fri, 16 Jul 2021 09:34:33 +0100 Message-ID: <20210716083442.1708-1-shameerali.kolothum.thodi@huawei.com> X-Mailer: git-send-email 2.12.0.windows.1 MIME-Version: 1.0 X-Originating-IP: [10.47.80.222] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To lhreml710-chm.china.huawei.com (10.201.108.61) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Hi, Major Changes from v5: - Addressed comments from Robin & Lorenzo. : Moved iort_parse_rmr() to acpi_iort_init() from iort_init_platform_devices(). : Removed use of struct iort_rmr_entry during the initial parse. Using struct iommu_resv_region instead. : Report RMR address alignment and overlap errors, but continue. : Reworked arm_smmu_init_bypass_stes() (patch # 6). - Updated SMMUv2 bypass SMR code. Thanks to Jon N (patch #8). - Set IOMMU protection flags(IOMMU_CACHE, IOMMU_MMIO) based on Type of RMR region. Suggested by Jon N. Sanity tested on a HiSilicon D06(SMMUv3). Further testing and feedback is greatly appreciated. Thanks, Shameer ------ v4 --> v5 -Added a fw_data union to struct iommu_resv_region and removed struct iommu_rmr (Based on comments from Joerg/Robin). -Added iommu_put_rmrs() to release mem. -Thanks to Steve for verifying on SMMUv2, but not added the Tested-by yet because of the above changes. v3 -->v4 -Included the SMMUv2 SMR bypass install changes suggested by Steve(patch #7) -As per Robin's comments, RMR reserve implementation is now more generic (patch #8) and dropped v3 patches 8 and 10. -Rebase to 5.13-rc1 RFC v2 --> v3 -Dropped RFC tag as the ACPICA header changes are now ready to be part of 5.13[0]. But this series still has a dependency on that patch. -Added IORT E.b related changes(node flags, _DSM function 5 checks for PCIe). -Changed RMR to stream id mapping from M:N to M:1 as per the spec and discussion here[1]. -Last two patches add support for SMMUv2(Thanks to Jon Nettleton!) ------ Jon Nettleton (1): iommu/arm-smmu: Get associated RMR info and install bypass SMR Shameer Kolothum (8): iommu: Introduce a union to struct iommu_resv_region ACPI/IORT: Add support for RMR node parsing iommu/dma: Introduce generic helper to retrieve RMR info ACPI/IORT: Add a helper to retrieve RMR memory regions iommu/arm-smmu-v3: Introduce strtab init helper iommu/arm-smmu-v3: Refactor arm_smmu_init_bypass_stes() to force bypass iommu/arm-smmu-v3: Get associated RMR info and install bypass STE iommu/dma: Reserve any RMR regions associated with a dev drivers/acpi/arm64/iort.c | 172 +++++++++++++++++++- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 76 +++++++-- drivers/iommu/arm/arm-smmu/arm-smmu.c | 48 ++++++ drivers/iommu/dma-iommu.c | 89 +++++++++- include/linux/acpi_iort.h | 7 + include/linux/dma-iommu.h | 13 ++ include/linux/iommu.h | 11 ++ 7 files changed, 393 insertions(+), 23 deletions(-) -- 2.17.1 Tested-by: Laurentiu Tudor Tested-by: Hanjun Guo Tested-by: Huiqiang Wang