From patchwork Wed Jan 15 12:52:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jean-Philippe Brucker X-Patchwork-Id: 11334385 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 56E7C14B7 for ; Wed, 15 Jan 2020 12:54:55 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 21664206D7 for ; Wed, 15 Jan 2020 12:54:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="SherNV9l"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="d82j4vm1" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 21664206D7 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+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.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=Hw2C7oicFDsx/r91axA2+qxdFePC9AQ4CIYjLaADfI4=; b=SherNV9lC7t3pD Q2Ddyd1tSjHafspXXfbP0WRPbMuu++q71jrqhoiPrRx3IlRg9pG9VX+Fu580um03fd3+ew4EN/zbJ TuY9ETqG68QuzGroCI00+IkbpMhERVIgpOJmVr4+DYIpONGVHqeMX0kc8vMcl8nVk6emf4pSy+K3z Dd0RIH7npWwRm+BzINu+1uNSb5T6aFOvnjTlPYz88pjIT2Mxf4BqlezT+I/Blh5fQOkZd9xUuPL02 gu2vkP9FqJFkKEz2+k2EaMwu19xhMZnjev2o0X9ZoruP2NPEMQa0ezMJQR0l7j3zqnlNKCGeuBDET DWTjTd+xUMVvoiyCQIUw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iriCC-0006hb-7a; Wed, 15 Jan 2020 12:54:52 +0000 Received: from mail-wm1-x341.google.com ([2a00:1450:4864:20::341]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iriAv-0005aO-RZ for linux-arm-kernel@lists.infradead.org; Wed, 15 Jan 2020 12:53:38 +0000 Received: by mail-wm1-x341.google.com with SMTP id d139so4707439wmd.0 for ; Wed, 15 Jan 2020 04:53:33 -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=SVox6K0aClSgQAj4ZePzlVYlKOAA5RM1JxWE0eeJ+CM=; b=d82j4vm1o3BcAiDmH8LgzA/3vpHR0J1gWTn3QQfboZjYwEHmLjWkVdv0rRYfw8tFQD ZuKg7Rqy6hIQuC+dEDXPSLfFBVh4xfBVaqbdgIL1DjHmr5YQ0g8aBzYy3Kb+GHOJFU4L g6e/Md8hX8aJLbt7iWz2wb0JfPk+FA+VwfPFj8ARFZ/hHFjSIIJjUKBrW0X8Uw65/GFN pCj8ovv/3UsaefxbgelPQ8wVEKeHfYhcTtN2E+f84GERI489oXoalINk//Ix2yee5SSF +wfxiIYEG3WEI0GqJI+KNZVEJCgdOf8YjqzueruUlJfwuRyTHAExiMrKEJFJQ/Z+jnHY DS1A== 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=SVox6K0aClSgQAj4ZePzlVYlKOAA5RM1JxWE0eeJ+CM=; b=ObrIj4gOhybIpTYguilATbBJBALRAXu+NO9Ebq+WZta8/R4WMHZKrRaxgPYTf4RgGW kmR7a9WtZVbxDOI+QfpEZgjc1NkuPyovH9Fpnzv2aMxADmatxaHPq060AdX9moxDl5tb ceC75x99wUAO2iVtuMKtnQmrzPvHHLwTulGIV/fE3OyWEqfW2fsINtUsOBTc1ELUuxHi tIN0hg/JR3xuIIIoIKq1OpQ1YdqKjUdM9cij0TPE2qBg8BkEPxz5oIvdq41HF5QdWDS4 lbjRDkSg+7ZIdGNMPiHvtgU6uNcoKJVukxuO1dNC22qPO7Ps3+nS0vZH6k+bWSMJ6QGv rPUA== X-Gm-Message-State: APjAAAWnk5s6xgGa/PQmqn00HSzza7kWjiF6gMEuh8QWw49zo946NJN4 7OUzoksPRgrGLTlXsZDuIO0sLg== X-Google-Smtp-Source: APXvYqzv6wpZNhXp0mYEPij61j3ANQSOgHf/a/RB8gE84eHpEFNB/mfELJUcr+OpmYAPFC/lrGboWA== X-Received: by 2002:a1c:3187:: with SMTP id x129mr33613992wmx.91.1579092812076; Wed, 15 Jan 2020 04:53:32 -0800 (PST) Received: from localhost.localdomain ([2001:171b:2266:ba60:116c:c27a:3e7f:5eaf]) by smtp.gmail.com with ESMTPSA id d12sm25196171wrp.62.2020.01.15.04.53.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Jan 2020 04:53:31 -0800 (PST) From: Jean-Philippe Brucker To: linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org, devicetree@vger.kernel.org, iommu@lists.linux-foundation.org, will@kernel.org Subject: [PATCH v5 04/13] ACPI/IORT: Parse SSID property of named component node Date: Wed, 15 Jan 2020 13:52:30 +0100 Message-Id: <20200115125239.136759-5-jean-philippe@linaro.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200115125239.136759-1-jean-philippe@linaro.org> References: <20200115125239.136759-1-jean-philippe@linaro.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200115_045333_892665_1EDEFC7F X-CRM114-Status: GOOD ( 11.74 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:341 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 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: mark.rutland@arm.com, lorenzo.pieralisi@arm.com, joro@8bytes.org, guohanjun@huawei.com, rjw@rjwysocki.net, eric.auger@redhat.com, robh+dt@kernel.org, jonathan.cameron@huawei.com, sudeep.holla@arm.com, bhelgaas@google.com, zhangfei.gao@linaro.org, robin.murphy@arm.com, lenb@kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Named component nodes in the IORT tables describe the number of Substream ID bits (aka. PASID) supported by the device. Propagate this value to the fwspec structure in order to enable PASID for platform devices. Acked-by: Hanjun Guo Reviewed-by: Eric Auger Reviewed-by: Jonathan Cameron Signed-off-by: Jean-Philippe Brucker --- drivers/acpi/arm64/iort.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c index 33f71983e001..39f389214ecf 100644 --- a/drivers/acpi/arm64/iort.c +++ b/drivers/acpi/arm64/iort.c @@ -11,6 +11,7 @@ #define pr_fmt(fmt) "ACPI: IORT: " fmt #include +#include #include #include #include @@ -924,6 +925,20 @@ static int iort_pci_iommu_init(struct pci_dev *pdev, u16 alias, void *data) return iort_iommu_xlate(info->dev, parent, streamid); } +static void iort_named_component_init(struct device *dev, + struct acpi_iort_node *node) +{ + 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); +} + /** * iort_iommu_configure - Set-up IOMMU configuration for a device. * @@ -978,6 +993,9 @@ const struct iommu_ops *iort_iommu_configure(struct device *dev) if (parent) err = iort_iommu_xlate(dev, parent, streamid); } while (parent && !err); + + if (!err) + iort_named_component_init(dev, node); } /*