From patchwork Tue Nov 26 09:19:38 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Saenz Julienne X-Patchwork-Id: 11261727 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 06B2D14ED for ; Tue, 26 Nov 2019 09:21:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DFA8820835 for ; Tue, 26 Nov 2019 09:21:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727482AbfKZJUi (ORCPT ); Tue, 26 Nov 2019 04:20:38 -0500 Received: from mx2.suse.de ([195.135.220.15]:47876 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727150AbfKZJUi (ORCPT ); Tue, 26 Nov 2019 04:20:38 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 853D2BA60; Tue, 26 Nov 2019 09:20:35 +0000 (UTC) From: Nicolas Saenz Julienne To: andrew.murray@arm.com, maz@kernel.org, linux-kernel@vger.kernel.org Cc: james.quinlan@broadcom.com, mbrugger@suse.com, f.fainelli@gmail.com, phil@raspberrypi.org, wahrenst@gmx.net, jeremy.linton@arm.com, linux-pci@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, Nicolas Saenz Julienne , Robin Murphy , linux-arm-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com, devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, netdev@vger.kernel.org, linux-rdma@vger.kernel.org, linux-rockchip@lists.infradead.org, iommu@lists.linux-foundation.org Subject: [PATCH v3 0/7] Raspberry Pi 4 PCIe support Date: Tue, 26 Nov 2019 10:19:38 +0100 Message-Id: <20191126091946.7970-1-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.24.0 MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org This series aims at providing support for Raspberry Pi 4's PCIe controller, which is also shared with the Broadcom STB family of devices. There was a previous attempt to upstream this some years ago[1] but was blocked as most STB PCIe integrations have a sparse DMA mapping[2] which is something currently not supported by the kernel. Luckily this is not the case for the Raspberry Pi 4. Note that the driver code is to be based on top of Rob Herring's series simplifying inbound and outbound range parsing. [1] https://patchwork.kernel.org/cover/10605933/ [2] https://patchwork.kernel.org/patch/10605957/ --- Changes since v2: - Redo register access in driver avoiding indirection while keeping the naming intact - Add patch editing ARM64's config - Last MSI cleanups, notably removing MSIX flag - Got rid of all _RB writes - Got rid of all of_data - Overall churn removal - Address the rest of Andrew's comments Changes since v1: - add generic rounddown/roundup_pow_two64() patch - Add MAINTAINERS patch - Fix Kconfig - Cleanup probe, use up to date APIs, exit on MSI failure - Get rid of linux,pci-domain and other unused constructs - Use edge triggered setup for MSI - Cleanup MSI implementation - Fix multiple cosmetic issues - Remove supend/resume code Jim Quinlan (3): dt-bindings: PCI: Add bindings for brcmstb's PCIe device PCI: brcmstb: add Broadcom STB PCIe host controller driver PCI: brcmstb: add MSI capability Nicolas Saenz Julienne (4): linux/log2.h: Add roundup/rounddown_pow_two64() family of functions ARM: dts: bcm2711: Enable PCIe controller MAINTAINERS: Add brcmstb PCIe controller arm64: defconfig: Enable Broadcom's STB PCIe controller .../bindings/pci/brcm,stb-pcie.yaml | 97 ++ MAINTAINERS | 4 + arch/arm/boot/dts/bcm2711.dtsi | 41 + arch/arm64/configs/defconfig | 1 + drivers/acpi/arm64/iort.c | 2 +- drivers/net/ethernet/mellanox/mlx4/en_clock.c | 3 +- drivers/of/device.c | 2 +- drivers/pci/controller/Kconfig | 9 + drivers/pci/controller/Makefile | 1 + .../pci/controller/cadence/pcie-cadence-ep.c | 7 +- drivers/pci/controller/cadence/pcie-cadence.c | 7 +- drivers/pci/controller/pcie-brcmstb.c | 1012 +++++++++++++++++ drivers/pci/controller/pcie-rockchip-ep.c | 9 +- include/linux/log2.h | 52 + kernel/dma/direct.c | 3 +- 15 files changed, 1230 insertions(+), 20 deletions(-) create mode 100644 Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml create mode 100644 drivers/pci/controller/pcie-brcmstb.c