From patchwork Tue May 26 11:49:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhangfei Gao X-Patchwork-Id: 11570419 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 8295514F6 for ; Tue, 26 May 2020 11:50:32 +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 603F920663 for ; Tue, 26 May 2020 11:50:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="XYvR+ZE0"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="xWP3LMiy" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 603F920663 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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: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=fq8DhVxSVImei5iT66bFbQUSzwsBusIwafat1ClRRHw=; b=XYvR+ZE0wWlwUBDk+A5uq/2eRS 883cOalDlmBY/ED0GIN8e5Zt8uudJd5+QvBnQ8VQbS6D8n5lAibAOret+d6ygFxzl9Dbz+v5P0kbi KSxxsRcjWb1sNuTcXYVz4/QpDLTqtHzAS4kAKhSv0ZmiL1arxjKVMgMY2WTgH69P48okpIzmE84/Q R1O3ai24Rl/0/Vx8F313WcdMBxKNq9/W5x0GuLruYP+qeQgAc5RwBId/u3WKicLRhSeyabP3lwIBU xWeAmfxZJGmzu3UrWM/5/YPGeJn6+UKVe6GlY0MFOfSPRNRp+ryorEbBS1UsLUjqxuxjPYLHN78O5 36KvhI7Q==; 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 1jdY69-00040O-5Q; Tue, 26 May 2020 11:50:21 +0000 Received: from mail-pf1-x442.google.com ([2607:f8b0:4864:20::442]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jdY5r-0001W9-Nq for linux-arm-kernel@lists.infradead.org; Tue, 26 May 2020 11:50:06 +0000 Received: by mail-pf1-x442.google.com with SMTP id y18so10067795pfl.9 for ; Tue, 26 May 2020 04:50:03 -0700 (PDT) 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; bh=+jiFCKG1lfnYYtqCMQUL0FADyscKoxL3O8Mn7sFVi4U=; b=xWP3LMiyXg9WkEiCrpIrQqSQF1pBVUsQ/FYoKllTcxGYHWrOAX4/TKjQGf13lZw580 kC7tZD5+ouByzCMpq3BjvKl4uV+20ecDjbKIzC7XkeNOtei2O0mO9XfES0omT/1eNKSv v7GffipQ1UW17lE2ZPi167S7hV1unlCmvYmV/tqqQoK+cRhJBUuOUVEvwSddusA+1uX1 5n7mgziqybjr23CBfp1mgDVcBGmdWAPJ/dfkzBfPtpzdv5kR7VVMrqyYLvZD5BCm6FLf k+061vIoLAo4EHP+slmxjiehDXFzdkE0279YHy3AU9/dLCDnJ3gjhArclFyuDLHSlO5u 6iqQ== 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; bh=+jiFCKG1lfnYYtqCMQUL0FADyscKoxL3O8Mn7sFVi4U=; b=stnT2+z8uOHnHPgB6jY1q2edLSCmnjSQQtwHPN2mgNgL0HLWsvLGLamSTEQvf5gg/x XMdUN0fgwEy9Q+ZjbjvTTfWH1gsgGpTJmcYem+NM92OH8ut5XaemET4SeEpvXiHb7EEi 6kQzNDgek70pZ8BP9P97GBShMRVd21mlguA7glqrM3HM75FJ/H0YSCQCVwcajhLU05um e72e54xUzc30tAZndHA8tunxdyby/EXHcDByupqO+wCYKuipD/s5BdHP0bFEthBH9iLv uB54jHZ6LH+zcHIaR+f/Jly+TcYLq18dHOVTeSAdRQ6TQBDy1u4jucIRCF2+3sILZ/2X Topw== X-Gm-Message-State: AOAM530qHLCwgtwm1nNp36ShffVTIWXEz9GeFnBfhU5NrwxbbGa4Fu2Z LaOC1qJiX/QYR9sEj5f5Jf+8og== X-Google-Smtp-Source: ABdhPJz/38ANaCZARqziU7c0uO3u8fyzoWL11rla4SWMrBnFZjbOk7LU2LfzTWgFz9APwdcIVXrm+w== X-Received: by 2002:a63:4a1d:: with SMTP id x29mr671835pga.53.1590493801979; Tue, 26 May 2020 04:50:01 -0700 (PDT) Received: from localhost.localdomain ([45.135.186.9]) by smtp.gmail.com with ESMTPSA id c12sm15586567pjm.46.2020.05.26.04.49.48 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 26 May 2020 04:50:01 -0700 (PDT) From: Zhangfei Gao To: Joerg Roedel , Bjorn Helgaas , Arnd Bergmann , Lorenzo Pieralisi , Hanjun Guo , Sudeep Holla , "Rafael J. Wysocki" , Len Brown , jean-philippe , Greg Kroah-Hartman , Herbert Xu , kenneth-lee-2012@foxmail.com, Wangzhou Subject: [PATCH 1/2] PCI: Introduce PCI_FIXUP_IOMMU Date: Tue, 26 May 2020 19:49:08 +0800 Message-Id: <1590493749-13823-2-git-send-email-zhangfei.gao@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1590493749-13823-1-git-send-email-zhangfei.gao@linaro.org> References: <1590493749-13823-1-git-send-email-zhangfei.gao@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200526_045003_788760_C5AA6CB6 X-CRM114-Status: GOOD ( 13.23 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 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 [2607:f8b0:4864:20:0:0:0:442 listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's 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: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, iommu@lists.linux-foundation.org, linux-crypto@vger.kernel.org, Zhangfei Gao , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Some platform devices appear as PCI but are actually on the AMBA bus, and they need fixup in drivers/pci/quirks.c handling iommu_fwnode. Here introducing PCI_FIXUP_IOMMU, which is called after iommu_fwnode is allocated, instead of reusing PCI_FIXUP_FINAL since it will slow down iommu probing as all devices in fixup final list will be reprocessed. Suggested-by: Joerg Roedel Signed-off-by: Zhangfei Gao --- drivers/pci/quirks.c | 7 +++++++ include/asm-generic/vmlinux.lds.h | 3 +++ include/linux/pci.h | 8 ++++++++ 3 files changed, 18 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index ca9ed57..b037034 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -83,6 +83,8 @@ extern struct pci_fixup __start_pci_fixups_header[]; extern struct pci_fixup __end_pci_fixups_header[]; extern struct pci_fixup __start_pci_fixups_final[]; extern struct pci_fixup __end_pci_fixups_final[]; +extern struct pci_fixup __start_pci_fixups_iommu[]; +extern struct pci_fixup __end_pci_fixups_iommu[]; extern struct pci_fixup __start_pci_fixups_enable[]; extern struct pci_fixup __end_pci_fixups_enable[]; extern struct pci_fixup __start_pci_fixups_resume[]; @@ -118,6 +120,11 @@ void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) end = __end_pci_fixups_final; break; + case pci_fixup_iommu: + start = __start_pci_fixups_iommu; + end = __end_pci_fixups_iommu; + break; + case pci_fixup_enable: start = __start_pci_fixups_enable; end = __end_pci_fixups_enable; diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 71e387a..3da32d8 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -411,6 +411,9 @@ __start_pci_fixups_final = .; \ KEEP(*(.pci_fixup_final)) \ __end_pci_fixups_final = .; \ + __start_pci_fixups_iommu = .; \ + KEEP(*(.pci_fixup_iommu)) \ + __end_pci_fixups_iommu = .; \ __start_pci_fixups_enable = .; \ KEEP(*(.pci_fixup_enable)) \ __end_pci_fixups_enable = .; \ diff --git a/include/linux/pci.h b/include/linux/pci.h index 83ce1cd..0d5fbf8 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1892,6 +1892,7 @@ enum pci_fixup_pass { pci_fixup_early, /* Before probing BARs */ pci_fixup_header, /* After reading configuration header */ pci_fixup_final, /* Final phase of device fixups */ + pci_fixup_iommu, /* After iommu_fwspec_init */ pci_fixup_enable, /* pci_enable_device() time */ pci_fixup_resume, /* pci_device_resume() */ pci_fixup_suspend, /* pci_device_suspend() */ @@ -1934,6 +1935,10 @@ enum pci_fixup_pass { class_shift, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_final, \ hook, vendor, device, class, class_shift, hook) +#define DECLARE_PCI_FIXUP_CLASS_IOMMU(vendor, device, class, \ + class_shift, hook) \ + DECLARE_PCI_FIXUP_SECTION(.pci_fixup_iommu, \ + hook, vendor, device, class, class_shift, hook) #define DECLARE_PCI_FIXUP_CLASS_ENABLE(vendor, device, class, \ class_shift, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_enable, \ @@ -1964,6 +1969,9 @@ enum pci_fixup_pass { #define DECLARE_PCI_FIXUP_FINAL(vendor, device, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_final, \ hook, vendor, device, PCI_ANY_ID, 0, hook) +#define DECLARE_PCI_FIXUP_IOMMU(vendor, device, hook) \ + DECLARE_PCI_FIXUP_SECTION(.pci_fixup_iommu, \ + hook, vendor, device, PCI_ANY_ID, 0, hook) #define DECLARE_PCI_FIXUP_ENABLE(vendor, device, hook) \ DECLARE_PCI_FIXUP_SECTION(.pci_fixup_enable, \ hook, vendor, device, PCI_ANY_ID, 0, hook) From patchwork Tue May 26 11:49:09 2020 Content-Type: text/plain; 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Tue, 26 May 2020 04:50:16 -0700 (PDT) From: Zhangfei Gao To: Joerg Roedel , Bjorn Helgaas , Arnd Bergmann , Lorenzo Pieralisi , Hanjun Guo , Sudeep Holla , "Rafael J. Wysocki" , Len Brown , jean-philippe , Greg Kroah-Hartman , Herbert Xu , kenneth-lee-2012@foxmail.com, Wangzhou Subject: [PATCH 2/2] iommu: calling pci_fixup_iommu in iommu_fwspec_init Date: Tue, 26 May 2020 19:49:09 +0800 Message-Id: <1590493749-13823-3-git-send-email-zhangfei.gao@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1590493749-13823-1-git-send-email-zhangfei.gao@linaro.org> References: <1590493749-13823-1-git-send-email-zhangfei.gao@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200526_045018_356040_299E39E8 X-CRM114-Status: GOOD ( 10.84 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 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 [2607:f8b0:4864:20:0:0:0:1044 listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's 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: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, iommu@lists.linux-foundation.org, linux-crypto@vger.kernel.org, Zhangfei Gao , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Calling pci_fixup_iommu in iommu_fwspec_init, which alloc iommu_fwnode. Some platform devices appear as PCI but are actually on the AMBA bus, and they need fixup in drivers/pci/quirks.c handling iommu_fwnode. So calling pci_fixup_iommu after iommu_fwnode is allocated. Signed-off-by: Zhangfei Gao --- drivers/iommu/iommu.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 7b37542..fb84c42 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -2418,6 +2418,10 @@ int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode, fwspec->iommu_fwnode = iommu_fwnode; fwspec->ops = ops; dev_iommu_fwspec_set(dev, fwspec); + + if (dev_is_pci(dev)) + pci_fixup_device(pci_fixup_iommu, to_pci_dev(dev)); + return 0; } EXPORT_SYMBOL_GPL(iommu_fwspec_init);