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=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,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 E1D76C4338F for ; Thu, 19 Aug 2021 21:57:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C8E63604AC for ; Thu, 19 Aug 2021 21:57:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235688AbhHSV5z (ORCPT ); Thu, 19 Aug 2021 17:57:55 -0400 Received: from foss.arm.com ([217.140.110.172]:47484 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229605AbhHSV5x (ORCPT ); Thu, 19 Aug 2021 17:57:53 -0400 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 0EC751042; Thu, 19 Aug 2021 14:57:16 -0700 (PDT) Received: from u200856.usa.arm.com (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 74E593F40C; Thu, 19 Aug 2021 14:57:15 -0700 (PDT) From: Jeremy Linton To: linux-pci@vger.kernel.org Cc: lorenzo.pieralisi@arm.com, nsaenz@kernel.org, bhelgaas@google.com, rjw@rjwysocki.net, lenb@kernel.org, robh@kernel.org, kw@linux.com, f.fainelli@gmail.com, sdonthineni@nvidia.com, stefan.wahren@i2se.com, bcm-kernel-feedback-list@broadcom.com, linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Jeremy Linton Subject: [PATCH v2 0/4] CM4 ACPI PCIe quirk Date: Thu, 19 Aug 2021 16:56:51 -0500 Message-Id: <20210819215655.84866-1-jeremy.linton@arm.com> X-Mailer: git-send-email 2.26.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The PFTF CM4 is an ACPI platform that is following the Arm PCIe SMC (DEN0115) standard because its PCIe config space isn't ECAM compliant since it is split into two parts. One part describes the root port registers, and another contains a moveable window pointing at a given device's 4K config space. Thus it doesn't have an MCFG table. As Linux doesn't support the PCI/SMC, a host bridge specific _DSD is added and associated with custom ECAM ops and cfgres. The custom cfg op selects between those two regions, as well as disallowing problematic accesses. V1->V2: Only move register definitions to new .h file, add include guards. Change quirk namespace identifier. Update Maintainers file. A number of whitespace, grammar, etc fixes. Jeremy Linton (4): PCI: brcmstb: Break register definitions into separate header PCI: brcmstb: Add ACPI config space quirk PCI/ACPI: Add Broadcom bcm2711 MCFG quirk MAINTAINERS: Widen brcmstb PCIe file scope MAINTAINERS | 2 +- drivers/acpi/pci_mcfg.c | 13 ++ drivers/pci/controller/Makefile | 1 + drivers/pci/controller/pcie-brcmstb-acpi.c | 74 ++++++++++ drivers/pci/controller/pcie-brcmstb.c | 150 +------------------- drivers/pci/controller/pcie-brcmstb.h | 155 +++++++++++++++++++++ include/linux/pci-ecam.h | 1 + 7 files changed, 247 insertions(+), 149 deletions(-) create mode 100644 drivers/pci/controller/pcie-brcmstb-acpi.c create mode 100644 drivers/pci/controller/pcie-brcmstb.h -- 2.31.1