From patchwork Thu Aug 19 12:02:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rahul Singh X-Patchwork-Id: 12446967 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, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 72766C4338F for ; Thu, 19 Aug 2021 12:07:21 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 42C7761152 for ; Thu, 19 Aug 2021 12:07:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 42C7761152 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.168643.307904 (Exim 4.92) (envelope-from ) id 1mGgpA-0006C5-W6; Thu, 19 Aug 2021 12:07:08 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 168643.307904; Thu, 19 Aug 2021 12:07:08 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1mGgpA-0006Bu-SI; Thu, 19 Aug 2021 12:07:08 +0000 Received: by outflank-mailman (input) for mailman id 168643; Thu, 19 Aug 2021 12:07:07 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1mGgp9-0006AQ-IC for xen-devel@lists.xenproject.org; Thu, 19 Aug 2021 12:07:07 +0000 Received: from foss.arm.com (unknown [217.140.110.172]) by us1-rack-iad1.inumbo.com (Halon) with ESMTP id f0161eb3-35f0-4f08-9ae0-feff75077d1e; Thu, 19 Aug 2021 12:07:06 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id BD04C31B; Thu, 19 Aug 2021 05:07:05 -0700 (PDT) Received: from e109506.cambridge.arm.com (e109506.cambridge.arm.com [10.1.199.1]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id B8F533F70D; Thu, 19 Aug 2021 05:07:04 -0700 (PDT) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: f0161eb3-35f0-4f08-9ae0-feff75077d1e From: Rahul Singh To: xen-devel@lists.xenproject.org Cc: bertrand.marquis@arm.com, rahul.singh@arm.com, Oleksandr Andrushchenko , Stefano Stabellini , Julien Grall , Volodymyr Babchuk Subject: [PATCH v1 07/14] xen/arm: Add support for Xilinx ZynqMP PCI host controller Date: Thu, 19 Aug 2021 13:02:47 +0100 Message-Id: X-Mailer: git-send-email 2.17.1 In-Reply-To: References: In-Reply-To: References: From: Oleksandr Andrushchenko Add support for Xilinx ZynqMP PCI host controller to map the PCI config space to the XEN memory. Signed-off-by: Oleksandr Andrushchenko --- xen/arch/arm/pci/Makefile | 1 + xen/arch/arm/pci/pci-host-zynqmp.c | 59 ++++++++++++++++++++++++++++++ 2 files changed, 60 insertions(+) create mode 100644 xen/arch/arm/pci/pci-host-zynqmp.c diff --git a/xen/arch/arm/pci/Makefile b/xen/arch/arm/pci/Makefile index 6f32fbbe67..1d045ade01 100644 --- a/xen/arch/arm/pci/Makefile +++ b/xen/arch/arm/pci/Makefile @@ -3,3 +3,4 @@ obj-y += pci-access.o obj-y += pci-host-generic.o obj-y += pci-host-common.o obj-y += ecam.o +obj-y += pci-host-zynqmp.o diff --git a/xen/arch/arm/pci/pci-host-zynqmp.c b/xen/arch/arm/pci/pci-host-zynqmp.c new file mode 100644 index 0000000000..fe103e3855 --- /dev/null +++ b/xen/arch/arm/pci/pci-host-zynqmp.c @@ -0,0 +1,59 @@ +/* + * Copyright (C) 2020-2021 EPAM Systems + * + * Based on Linux drivers/pci/controller/pci-host-common.c + * Based on Linux drivers/pci/controller/pci-host-generic.c + * Based on xen/arch/arm/pci/pci-host-generic.c + * Copyright (C) 2014 ARM Limited Will Deacon + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include + +static const struct dt_device_match gen_pci_dt_match[] = { + { .compatible = "xlnx,nwl-pcie-2.11", + .data = &pci_generic_ecam_ops }, + { }, +}; + +static int gen_pci_dt_init(struct dt_device_node *dev, const void *data) +{ + const struct dt_device_match *of_id; + const struct pci_ecam_ops *ops; + + of_id = dt_match_node(gen_pci_dt_match, dev->dev.of_node); + ops = (struct pci_ecam_ops *) of_id->data; + + printk(XENLOG_INFO "Found PCI host bridge %s compatible:%s \n", + dt_node_full_name(dev), of_id->compatible); + + return pci_host_common_probe(dev, ops, 2); +} + +DT_DEVICE_START(pci_gen, "PCI HOST ZYNQMP", DEVICE_PCI) +.dt_match = gen_pci_dt_match, +.init = gen_pci_dt_init, +DT_DEVICE_END + +/* + * Local variables: + * mode: C + * c-file-style: "BSD" + * c-basic-offset: 4 + * tab-width: 4 + * indent-tabs-mode: nil + * End: + */