From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0316FC433E0 for ; Tue, 2 Mar 2021 11:22:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A588464F11 for ; Tue, 2 Mar 2021 11:22:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1442179AbhCBLQ4 (ORCPT ); Tue, 2 Mar 2021 06:16:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59314 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242559AbhCBJgs (ORCPT ); Tue, 2 Mar 2021 04:36:48 -0500 Received: from mail-wr1-x42a.google.com (mail-wr1-x42a.google.com [IPv6:2a00:1450:4864:20::42a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C1656C061797 for ; Tue, 2 Mar 2021 01:35:33 -0800 (PST) Received: by mail-wr1-x42a.google.com with SMTP id v15so19102501wrx.4 for ; Tue, 02 Mar 2021 01:35:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=YldRYT03xwkqqahy3TqrWZQZDsJFb2h5IF4zYpZYWmw=; b=w+rdPO0JHTT2L2/3tw009CCOXkBgpshsEaSpLWqdi7dX1sjMwtm1fFiJW6+EEJQZ0/ oTCzvgEeKGnexhDYqAt+R0PaePsYyfx4xa4qp1EbQjyfp1WdpU2KfIh1Hv21rjyBxEK5 uVaxBEa5yUxPB6jniFP+zmwSkbcxCCn1zRO+dHx2VNs3Rw/mNyK6Z+UmWHb3LRNfxIxo DYyRLXTQM+UWRBu5/+17pOKch8qRZj4/f15wdaLKYkI4zxvA1jPlzRczVQd0ZmKt3tFM Lc3GCSZdScNztMRGazdmWgK+fDLXvxC8e0QBiOYXZoxo1WqmLJ3Oe5ZhjjcNX9rFDos/ Ob2g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=YldRYT03xwkqqahy3TqrWZQZDsJFb2h5IF4zYpZYWmw=; b=G696uMXU5pW1B8hyQlzT04UCthP+puG5espVs9SZwDUZAcAZJ87TiKBIAGLXxHoRxb cVEZLamd2SyMERlNwSe3m3cmaRw9Kk5h8m3D2ZSrQve2uh3h68Ok+8chnFnstFskTmiy FqKLVVhwJ6tGU+TcwTL/7jZMo67pWNYAAapXEHG6yUpdJ99rX+nQAZ3BBk/D7e9Us5zw /zc2rrM0lelHsIe0hTwXGxsABdxYVu0W+lG+PqXWPqafxxl7mXkUn4mTuw0zO6FbOo6/ qhg/uWFZsgO47ezBznTf+3vxAzRqmi8G+6ciPerb5Bm6MLRqoToVH24W+6Rrn+yDHWu9 x7mA== X-Gm-Message-State: AOAM531JYxEhDxplPcpXY1FLkIjA5AxaOxBgLDwJEwc/CuBesMe9dewp B30RrAshrd6PwMn4dJESGP/ZLg== X-Google-Smtp-Source: ABdhPJziUR7m/6sWv8w2q6YqohX5h02MqXZ7Bt3V5/veYoCEwom/Pgu7ispfA5hf1cn38y3xw7HAGg== X-Received: by 2002:a5d:6a86:: with SMTP id s6mr7586863wru.307.1614677732520; Tue, 02 Mar 2021 01:35:32 -0800 (PST) Received: from localhost.localdomain ([2001:1715:4e26:a7e0:116c:c27a:3e7f:5eaf]) by smtp.gmail.com with ESMTPSA id w131sm1963818wmb.8.2021.03.02.01.35.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Mar 2021 01:35:32 -0800 (PST) From: Jean-Philippe Brucker To: joro@8bytes.org, will@kernel.org Cc: lorenzo.pieralisi@arm.com, robh+dt@kernel.org, guohanjun@huawei.com, sudeep.holla@arm.com, rjw@rjwysocki.net, lenb@kernel.org, robin.murphy@arm.com, Jonathan.Cameron@huawei.com, eric.auger@redhat.com, iommu@lists.linux-foundation.org, devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-accelerators@lists.ozlabs.org, baolu.lu@linux.intel.com, jacob.jun.pan@linux.intel.com, kevin.tian@intel.com, vdumpa@nvidia.com, zhangfei.gao@linaro.org, shameerali.kolothum.thodi@huawei.com, vivek.gautam@arm.com, zhukeqian1@huawei.com, wangzhou1@hisilicon.com, Jean-Philippe Brucker Subject: [PATCH v13 02/10] iommu/arm-smmu-v3: Use device properties for pasid-num-bits Date: Tue, 2 Mar 2021 10:26:38 +0100 Message-Id: <20210302092644.2553014-3-jean-philippe@linaro.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210302092644.2553014-1-jean-philippe@linaro.org> References: <20210302092644.2553014-1-jean-philippe@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org The pasid-num-bits property shouldn't need a dedicated fwspec field, it's a job for device properties. Add properties for IORT, and access the number of PASID bits using device_property_read_u32(). Suggested-by: Robin Murphy Acked-by: Jonathan Cameron Reviewed-by: Eric Auger Signed-off-by: Jean-Philippe Brucker --- include/linux/iommu.h | 2 -- drivers/acpi/arm64/iort.c | 13 +++++++------ drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 3 ++- drivers/iommu/of_iommu.c | 5 ----- 4 files changed, 9 insertions(+), 14 deletions(-) diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 1d422bf722a1..16ce75693d83 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -572,7 +572,6 @@ struct iommu_group *fsl_mc_device_group(struct device *dev); * @ops: ops for this device's IOMMU * @iommu_fwnode: firmware handle for this device's IOMMU * @flags: IOMMU_FWSPEC_* flags - * @num_pasid_bits: number of PASID bits supported by this device * @num_ids: number of associated device IDs * @ids: IDs which this device may present to the IOMMU */ @@ -580,7 +579,6 @@ struct iommu_fwspec { const struct iommu_ops *ops; struct fwnode_handle *iommu_fwnode; u32 flags; - u32 num_pasid_bits; unsigned int num_ids; u32 ids[]; }; diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c index 2494138a6905..3912a1f6058e 100644 --- a/drivers/acpi/arm64/iort.c +++ b/drivers/acpi/arm64/iort.c @@ -968,15 +968,16 @@ static int iort_pci_iommu_init(struct pci_dev *pdev, u16 alias, void *data) static void iort_named_component_init(struct device *dev, struct acpi_iort_node *node) { + struct property_entry props[2] = {}; struct acpi_iort_named_component *nc; - struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); - - if (!fwspec) - return; nc = (struct acpi_iort_named_component *)node->node_data; - fwspec->num_pasid_bits = FIELD_GET(ACPI_IORT_NC_PASID_BITS, - nc->node_flags); + props[0] = PROPERTY_ENTRY_U32("pasid-num-bits", + FIELD_GET(ACPI_IORT_NC_PASID_BITS, + nc->node_flags)); + + if (device_add_properties(dev, props)) + dev_warn(dev, "Could not add device properties\n"); } static int iort_nc_iommu_map(struct device *dev, struct acpi_iort_node *node) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index 8594b4a83043..7edce914c45e 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -2392,7 +2392,8 @@ static struct iommu_device *arm_smmu_probe_device(struct device *dev) } } - master->ssid_bits = min(smmu->ssid_bits, fwspec->num_pasid_bits); + device_property_read_u32(dev, "pasid-num-bits", &master->ssid_bits); + master->ssid_bits = min(smmu->ssid_bits, master->ssid_bits); /* * Note that PASID must be enabled before, and disabled after ATS: diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c index e505b9130a1c..a9d2df001149 100644 --- a/drivers/iommu/of_iommu.c +++ b/drivers/iommu/of_iommu.c @@ -210,11 +210,6 @@ const struct iommu_ops *of_iommu_configure(struct device *dev, of_pci_iommu_init, &info); } else { err = of_iommu_configure_device(master_np, dev, id); - - fwspec = dev_iommu_fwspec_get(dev); - if (!err && fwspec) - of_property_read_u32(master_np, "pasid-num-bits", - &fwspec->num_pasid_bits); } /* -- 2.30.1 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 60828C433DB for ; Tue, 2 Mar 2021 09:35:40 +0000 (UTC) Received: from smtp4.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (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 DC5B764F1B for ; Tue, 2 Mar 2021 09:35:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DC5B764F1B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 7A6ED4F136; Tue, 2 Mar 2021 09:35:39 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NSzru4BZyT9b; Tue, 2 Mar 2021 09:35:38 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp4.osuosl.org (Postfix) with ESMTP id 178324F10E; Tue, 2 Mar 2021 09:35:38 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id B452FC0013; Tue, 2 Mar 2021 09:35:37 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 20A2FC0001 for ; Tue, 2 Mar 2021 09:35:35 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id 1082D43096 for ; Tue, 2 Mar 2021 09:35:35 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Authentication-Results: smtp2.osuosl.org (amavisd-new); dkim=pass (2048-bit key) header.d=linaro.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id z3TYKwkBeOEs for ; Tue, 2 Mar 2021 09:35:34 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from mail-wr1-f47.google.com (mail-wr1-f47.google.com [209.85.221.47]) by smtp2.osuosl.org (Postfix) with ESMTPS id 3C9D643069 for ; Tue, 2 Mar 2021 09:35:34 +0000 (UTC) Received: by mail-wr1-f47.google.com with SMTP id u14so19099678wri.3 for ; Tue, 02 Mar 2021 01:35:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=YldRYT03xwkqqahy3TqrWZQZDsJFb2h5IF4zYpZYWmw=; b=w+rdPO0JHTT2L2/3tw009CCOXkBgpshsEaSpLWqdi7dX1sjMwtm1fFiJW6+EEJQZ0/ oTCzvgEeKGnexhDYqAt+R0PaePsYyfx4xa4qp1EbQjyfp1WdpU2KfIh1Hv21rjyBxEK5 uVaxBEa5yUxPB6jniFP+zmwSkbcxCCn1zRO+dHx2VNs3Rw/mNyK6Z+UmWHb3LRNfxIxo DYyRLXTQM+UWRBu5/+17pOKch8qRZj4/f15wdaLKYkI4zxvA1jPlzRczVQd0ZmKt3tFM Lc3GCSZdScNztMRGazdmWgK+fDLXvxC8e0QBiOYXZoxo1WqmLJ3Oe5ZhjjcNX9rFDos/ Ob2g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=YldRYT03xwkqqahy3TqrWZQZDsJFb2h5IF4zYpZYWmw=; b=WMqPKtfLFvVGlr7H3n2wvXKT8aopiRFHka6hmWqVh9UjfIRv2wAWbLs7CU1V1e5Zc1 Xc68E43Nz8Ybn+XPtE16du0GQnDEc8c0kLF8V4hIzJOD/P5m48CwdnHn27J+H2tVHv/l PxB3ptbplPSXhp/l2D8viXL330kRLbEJxfYW/KrRuXzWdRrM9qksptyxjWD4taEeooZi cN2C5BQUi2f+dLEzMmK/CbiIacZF7EQ8YMOLndXru12FdMbpEk69KW9BPYkLGvLIvVhz naHu22cs1I8y0hSwhqdo7bgu9RcmLpZA9UAnqXaStq/s45tbChBUFUrf3PNFfx6Whjo2 7Ngw== X-Gm-Message-State: AOAM533XwoFk5aptm8rZjqsY6gh+jcCJRVsq8VyygWagvY9EAhX8tWA4 s+TH8nvC/RceW5uzraQ+15rbTw== X-Google-Smtp-Source: ABdhPJziUR7m/6sWv8w2q6YqohX5h02MqXZ7Bt3V5/veYoCEwom/Pgu7ispfA5hf1cn38y3xw7HAGg== X-Received: by 2002:a5d:6a86:: with SMTP id s6mr7586863wru.307.1614677732520; Tue, 02 Mar 2021 01:35:32 -0800 (PST) Received: from localhost.localdomain ([2001:1715:4e26:a7e0:116c:c27a:3e7f:5eaf]) by smtp.gmail.com with ESMTPSA id w131sm1963818wmb.8.2021.03.02.01.35.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Mar 2021 01:35:32 -0800 (PST) From: Jean-Philippe Brucker To: joro@8bytes.org, will@kernel.org Subject: [PATCH v13 02/10] iommu/arm-smmu-v3: Use device properties for pasid-num-bits Date: Tue, 2 Mar 2021 10:26:38 +0100 Message-Id: <20210302092644.2553014-3-jean-philippe@linaro.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210302092644.2553014-1-jean-philippe@linaro.org> References: <20210302092644.2553014-1-jean-philippe@linaro.org> MIME-Version: 1.0 Cc: vivek.gautam@arm.com, guohanjun@huawei.com, Jean-Philippe Brucker , linux-acpi@vger.kernel.org, zhangfei.gao@linaro.org, lenb@kernel.org, devicetree@vger.kernel.org, kevin.tian@intel.com, robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org, rjw@rjwysocki.net, iommu@lists.linux-foundation.org, sudeep.holla@arm.com, robin.murphy@arm.com, linux-accelerators@lists.ozlabs.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" The pasid-num-bits property shouldn't need a dedicated fwspec field, it's a job for device properties. Add properties for IORT, and access the number of PASID bits using device_property_read_u32(). Suggested-by: Robin Murphy Acked-by: Jonathan Cameron Reviewed-by: Eric Auger Signed-off-by: Jean-Philippe Brucker --- include/linux/iommu.h | 2 -- drivers/acpi/arm64/iort.c | 13 +++++++------ drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 3 ++- drivers/iommu/of_iommu.c | 5 ----- 4 files changed, 9 insertions(+), 14 deletions(-) diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 1d422bf722a1..16ce75693d83 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -572,7 +572,6 @@ struct iommu_group *fsl_mc_device_group(struct device *dev); * @ops: ops for this device's IOMMU * @iommu_fwnode: firmware handle for this device's IOMMU * @flags: IOMMU_FWSPEC_* flags - * @num_pasid_bits: number of PASID bits supported by this device * @num_ids: number of associated device IDs * @ids: IDs which this device may present to the IOMMU */ @@ -580,7 +579,6 @@ struct iommu_fwspec { const struct iommu_ops *ops; struct fwnode_handle *iommu_fwnode; u32 flags; - u32 num_pasid_bits; unsigned int num_ids; u32 ids[]; }; diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c index 2494138a6905..3912a1f6058e 100644 --- a/drivers/acpi/arm64/iort.c +++ b/drivers/acpi/arm64/iort.c @@ -968,15 +968,16 @@ static int iort_pci_iommu_init(struct pci_dev *pdev, u16 alias, void *data) static void iort_named_component_init(struct device *dev, struct acpi_iort_node *node) { + struct property_entry props[2] = {}; struct acpi_iort_named_component *nc; - struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); - - if (!fwspec) - return; nc = (struct acpi_iort_named_component *)node->node_data; - fwspec->num_pasid_bits = FIELD_GET(ACPI_IORT_NC_PASID_BITS, - nc->node_flags); + props[0] = PROPERTY_ENTRY_U32("pasid-num-bits", + FIELD_GET(ACPI_IORT_NC_PASID_BITS, + nc->node_flags)); + + if (device_add_properties(dev, props)) + dev_warn(dev, "Could not add device properties\n"); } static int iort_nc_iommu_map(struct device *dev, struct acpi_iort_node *node) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index 8594b4a83043..7edce914c45e 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -2392,7 +2392,8 @@ static struct iommu_device *arm_smmu_probe_device(struct device *dev) } } - master->ssid_bits = min(smmu->ssid_bits, fwspec->num_pasid_bits); + device_property_read_u32(dev, "pasid-num-bits", &master->ssid_bits); + master->ssid_bits = min(smmu->ssid_bits, master->ssid_bits); /* * Note that PASID must be enabled before, and disabled after ATS: diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c index e505b9130a1c..a9d2df001149 100644 --- a/drivers/iommu/of_iommu.c +++ b/drivers/iommu/of_iommu.c @@ -210,11 +210,6 @@ const struct iommu_ops *of_iommu_configure(struct device *dev, of_pci_iommu_init, &info); } else { err = of_iommu_configure_device(master_np, dev, id); - - fwspec = dev_iommu_fwspec_get(dev); - if (!err && fwspec) - of_property_read_u32(master_np, "pasid-num-bits", - &fwspec->num_pasid_bits); } /* -- 2.30.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E6C69C433DB for ; Tue, 2 Mar 2021 09:37:11 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 815AB64F09 for ; Tue, 2 Mar 2021 09:37:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 815AB64F09 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: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:List-Owner; bh=9eaAC3W4sgr06UKFI59NFzpAK3TN/KMD3qEXhkYY4bc=; b=M3MlawQHsPiDUeW4flhiE4IPd lTMGJ9soVSEr2aTNzq0fp7DgwmdlAqZz4ZSQ+G8tiHIIo01yZ9Qlc+XOlQM58nY4oW4t5RNECKyvo 40I35Y/MHDKtWjVGi07J82uS4lcm03cXz0Z2h/nYUJwpgmWF+CHhCebKAO3qN4t2DZLgBRZs9W0hu 5HVxU55nwxcuqciW39F5YF0Jzv60eRizbRiC2yPmcyE2mUBi/rZUfQpPjBeIMEKgrtM30FMf+f/Mn b13hi6uui6MkxKU6smcJCLFUSHd4vnjzPtu50AlQiitouBE1L04+7GJSBojkNUGMtlbb8nhF9PP/0 tpZDNqINQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1lH1RO-0003Ca-KR; Tue, 02 Mar 2021 09:35:42 +0000 Received: from mail-wr1-x431.google.com ([2a00:1450:4864:20::431]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1lH1RF-00038P-V9 for linux-arm-kernel@lists.infradead.org; Tue, 02 Mar 2021 09:35:37 +0000 Received: by mail-wr1-x431.google.com with SMTP id v15so19102502wrx.4 for ; Tue, 02 Mar 2021 01:35:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=YldRYT03xwkqqahy3TqrWZQZDsJFb2h5IF4zYpZYWmw=; b=w+rdPO0JHTT2L2/3tw009CCOXkBgpshsEaSpLWqdi7dX1sjMwtm1fFiJW6+EEJQZ0/ oTCzvgEeKGnexhDYqAt+R0PaePsYyfx4xa4qp1EbQjyfp1WdpU2KfIh1Hv21rjyBxEK5 uVaxBEa5yUxPB6jniFP+zmwSkbcxCCn1zRO+dHx2VNs3Rw/mNyK6Z+UmWHb3LRNfxIxo DYyRLXTQM+UWRBu5/+17pOKch8qRZj4/f15wdaLKYkI4zxvA1jPlzRczVQd0ZmKt3tFM Lc3GCSZdScNztMRGazdmWgK+fDLXvxC8e0QBiOYXZoxo1WqmLJ3Oe5ZhjjcNX9rFDos/ Ob2g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=YldRYT03xwkqqahy3TqrWZQZDsJFb2h5IF4zYpZYWmw=; b=ncXCucHUwlJI038Kw+Bw2iz4QsTuOuNwoUnv81KECMh/1qmGD69yUpVHPbjvjm7CMI /MwG0N9s7eKB1BaC4qhpmeNwWV50Wgcgn4F40ejDZyuSZ5BYLF42XjyksLuZ3Be64QWz IYi6kmTjxrCcdEdt6+8fffeGryGDZHZ+THs4yGBNMKfZQFYWsaOWEU6c9NowICatIExZ Jlaq2aZ64XPK9/Ek4hBlvX8a3EDjDuuJNVeXAn+ZtRUGDT+BEqwF7foPI40E4QT/2Teh Ai3XzSVlooA0sjoTcyEm0+USiWxmCk/hmFwfOqKjykjCL3JjRmyJ1b3fQmhpGxHIHRL1 illQ== X-Gm-Message-State: AOAM533cNJPh8aTTblaPBmbOra13SgNddETigIvfYYcT1siM7M+RNDGA pCfZW92YR/UmTv75QKO8Sr+nsUqnxNsFeQ== X-Google-Smtp-Source: ABdhPJziUR7m/6sWv8w2q6YqohX5h02MqXZ7Bt3V5/veYoCEwom/Pgu7ispfA5hf1cn38y3xw7HAGg== X-Received: by 2002:a5d:6a86:: with SMTP id s6mr7586863wru.307.1614677732520; Tue, 02 Mar 2021 01:35:32 -0800 (PST) Received: from localhost.localdomain ([2001:1715:4e26:a7e0:116c:c27a:3e7f:5eaf]) by smtp.gmail.com with ESMTPSA id w131sm1963818wmb.8.2021.03.02.01.35.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Mar 2021 01:35:32 -0800 (PST) From: Jean-Philippe Brucker To: joro@8bytes.org, will@kernel.org Subject: [PATCH v13 02/10] iommu/arm-smmu-v3: Use device properties for pasid-num-bits Date: Tue, 2 Mar 2021 10:26:38 +0100 Message-Id: <20210302092644.2553014-3-jean-philippe@linaro.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210302092644.2553014-1-jean-philippe@linaro.org> References: <20210302092644.2553014-1-jean-philippe@linaro.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210302_043534_060599_883FE6AA X-CRM114-Status: GOOD ( 16.03 ) 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: vivek.gautam@arm.com, guohanjun@huawei.com, zhukeqian1@huawei.com, Jean-Philippe Brucker , lorenzo.pieralisi@arm.com, wangzhou1@hisilicon.com, linux-acpi@vger.kernel.org, zhangfei.gao@linaro.org, lenb@kernel.org, devicetree@vger.kernel.org, kevin.tian@intel.com, jacob.jun.pan@linux.intel.com, eric.auger@redhat.com, robh+dt@kernel.org, Jonathan.Cameron@huawei.com, linux-arm-kernel@lists.infradead.org, rjw@rjwysocki.net, shameerali.kolothum.thodi@huawei.com, iommu@lists.linux-foundation.org, sudeep.holla@arm.com, robin.murphy@arm.com, linux-accelerators@lists.ozlabs.org, baolu.lu@linux.intel.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The pasid-num-bits property shouldn't need a dedicated fwspec field, it's a job for device properties. Add properties for IORT, and access the number of PASID bits using device_property_read_u32(). Suggested-by: Robin Murphy Acked-by: Jonathan Cameron Reviewed-by: Eric Auger Signed-off-by: Jean-Philippe Brucker --- include/linux/iommu.h | 2 -- drivers/acpi/arm64/iort.c | 13 +++++++------ drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 3 ++- drivers/iommu/of_iommu.c | 5 ----- 4 files changed, 9 insertions(+), 14 deletions(-) diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 1d422bf722a1..16ce75693d83 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -572,7 +572,6 @@ struct iommu_group *fsl_mc_device_group(struct device *dev); * @ops: ops for this device's IOMMU * @iommu_fwnode: firmware handle for this device's IOMMU * @flags: IOMMU_FWSPEC_* flags - * @num_pasid_bits: number of PASID bits supported by this device * @num_ids: number of associated device IDs * @ids: IDs which this device may present to the IOMMU */ @@ -580,7 +579,6 @@ struct iommu_fwspec { const struct iommu_ops *ops; struct fwnode_handle *iommu_fwnode; u32 flags; - u32 num_pasid_bits; unsigned int num_ids; u32 ids[]; }; diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c index 2494138a6905..3912a1f6058e 100644 --- a/drivers/acpi/arm64/iort.c +++ b/drivers/acpi/arm64/iort.c @@ -968,15 +968,16 @@ static int iort_pci_iommu_init(struct pci_dev *pdev, u16 alias, void *data) static void iort_named_component_init(struct device *dev, struct acpi_iort_node *node) { + struct property_entry props[2] = {}; struct acpi_iort_named_component *nc; - struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); - - if (!fwspec) - return; nc = (struct acpi_iort_named_component *)node->node_data; - fwspec->num_pasid_bits = FIELD_GET(ACPI_IORT_NC_PASID_BITS, - nc->node_flags); + props[0] = PROPERTY_ENTRY_U32("pasid-num-bits", + FIELD_GET(ACPI_IORT_NC_PASID_BITS, + nc->node_flags)); + + if (device_add_properties(dev, props)) + dev_warn(dev, "Could not add device properties\n"); } static int iort_nc_iommu_map(struct device *dev, struct acpi_iort_node *node) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index 8594b4a83043..7edce914c45e 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -2392,7 +2392,8 @@ static struct iommu_device *arm_smmu_probe_device(struct device *dev) } } - master->ssid_bits = min(smmu->ssid_bits, fwspec->num_pasid_bits); + device_property_read_u32(dev, "pasid-num-bits", &master->ssid_bits); + master->ssid_bits = min(smmu->ssid_bits, master->ssid_bits); /* * Note that PASID must be enabled before, and disabled after ATS: diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c index e505b9130a1c..a9d2df001149 100644 --- a/drivers/iommu/of_iommu.c +++ b/drivers/iommu/of_iommu.c @@ -210,11 +210,6 @@ const struct iommu_ops *of_iommu_configure(struct device *dev, of_pci_iommu_init, &info); } else { err = of_iommu_configure_device(master_np, dev, id); - - fwspec = dev_iommu_fwspec_get(dev); - if (!err && fwspec) - of_property_read_u32(master_np, "pasid-num-bits", - &fwspec->num_pasid_bits); } /* -- 2.30.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel