From patchwork Tue May 26 19:12:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jim Quinlan X-Patchwork-Id: 1298346 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=broadcom.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=broadcom.com header.i=@broadcom.com header.a=rsa-sha256 header.s=dkimrelay header.b=kMVkvfh2; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 49WkBn74RSz9sWd for ; Wed, 27 May 2020 05:13:21 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404239AbgEZTNU (ORCPT ); Tue, 26 May 2020 15:13:20 -0400 Received: from rnd-relay.smtp.broadcom.com ([192.19.229.170]:45826 "EHLO rnd-relay.smtp.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389966AbgEZTNT (ORCPT ); Tue, 26 May 2020 15:13:19 -0400 Received: from mail-irv-17.broadcom.com (mail-irv-17.lvn.broadcom.net [10.75.242.48]) by rnd-relay.smtp.broadcom.com (Postfix) with ESMTP id 3A98130D62B; Tue, 26 May 2020 12:13:16 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.10.3 rnd-relay.smtp.broadcom.com 3A98130D62B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=broadcom.com; s=dkimrelay; t=1590520396; bh=+b41cKto7oBml6gbt0P3Uc1iMp9Snf8kHAJBk8ILXSc=; h=From:To:Cc:Subject:Date:From; b=kMVkvfh2RF6stG81DoEIP5rW2Bb1X314UrWcAaVH2vesNfHDGDr6KhshbNA46ZHix 7ZwntfMj7r7NDOxK4+O77jSehqnV1xcgzxPORE2AO6ggOOFgMQnDPaBIK+8fl7+mZP rhW1OIwreN8UcomYfGhgxrbXcaiUc4E8Vm+33GjA= Received: from stbsrv-and-01.and.broadcom.net (stbsrv-and-01.and.broadcom.net [10.28.16.211]) by mail-irv-17.broadcom.com (Postfix) with ESMTP id 6F1C914008B; Tue, 26 May 2020 12:13:13 -0700 (PDT) From: Jim Quinlan To: linux-pci@vger.kernel.org, Christoph Hellwig , Nicolas Saenz Julienne , bcm-kernel-feedback-list@broadcom.com, james.quinlan@broadcom.com Cc: Alan Stern , Andy Shevchenko , Corey Minyard , Dan Williams , devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE), Greg Kroah-Hartman , Heikki Krogerus , iommu@lists.linux-foundation.org (open list:DMA MAPPING HELPERS), Julien Grall , linux-arm-kernel@lists.infradead.org (moderated list:ARM PORT), linux-ide@vger.kernel.org (open list:LIBATA SUBSYSTEM (Serial and Parallel ATA drivers)), linux-kernel@vger.kernel.org (open list), linux-rpi-kernel@lists.infradead.org (moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE), linux-usb@vger.kernel.org (open list:USB SUBSYSTEM), Mark Brown , Oliver Neukum , "Rafael J. Wysocki" , Rob Herring , Robin Murphy , Saravana Kannan , Stefano Stabellini , Suzuki K Poulose , Ulf Hansson , Wolfram Sang Subject: [PATCH v2 00/14] PCI: brcmstb: enable PCIe for STB chips Date: Tue, 26 May 2020 15:12:39 -0400 Message-Id: <20200526191303.1492-1-james.quinlan@broadcom.com> X-Mailer: git-send-email 2.17.1 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org v2: Commit: "device core: Add ability to handle multiple dma offsets" o Added helper func attach_dma_pfn_offset_map() in address.c (Chistoph) o Helpers funcs added to __phys_to_dma() & __dma_to_phys() (Christoph) o Added warning when multiple offsets are needed and !DMA_PFN_OFFSET_MAP o dev->dma_pfn_map => dev->dma_pfn_offset_map o s/frm/from/ for dma_pfn_offset_frm_{phys,dma}_addr() (Christoph) o In device.h: s/const void */const struct dma_pfn_offset_region */ o removed 'unlikely' from unlikely(dev->dma_pfn_offset_map) since guarded by CONFIG_DMA_PFN_OFFSET_MAP (Christoph) o Since dev->dma_pfn_offset is copied in usb/core/{usb,message}.c, now dev->dma_pfn_offset_map is copied as well. o Merged two of the DMA commits into one (Christoph). Commit "arm: dma-mapping: Invoke dma offset func if needed": o Use helper functions instead of #if CONFIG_DMA_PFN_OFFSET Other commits' changes: o Removed need for carrying of_id var in priv (Nicolas) o Commit message rewordings (Bjorn) o Commit log messages filled to 75 chars (Bjorn) o devm_reset_control_get_shared()) => devm_reset_control_get_optional_shared (Philipp) o Add call to reset_control_assert() in PCIe remove routines (Philipp) v1: This patchset expands the usefulness of the Broadcom Settop Box PCIe controller by building upon the PCIe driver used currently by the Raspbery Pi. Other forms of this patchset were submitted by me years ago and not accepted; the major sticking point was the code required for the DMA remapping needed for the PCIe driver to work [1]. There have been many changes to the DMA and OF subsystems since that time, making a cleaner and less intrusive patchset possible. This patchset implements a generalization of "dev->dma_pfn_offset", except that instead of a single scalar offset it provides for multiple offsets via a function which depends upon the "dma-ranges" property of the PCIe host controller. This is required for proper functionality of the BrcmSTB PCIe controller and possibly some other devices. [1] https://lore.kernel.org/linux-arm-kernel/1516058925-46522-5-git-send-email-jim2101024@gmail.com/ Jim Quinlan (14): PCI: brcmstb: PCIE_BRCMSTB depends on ARCH_BRCMSTB ata: ahci_brcm: Fix use of BCM7216 reset controller dt-bindings: PCI: Add bindings for more Brcmstb chips PCI: brcmstb: Add bcm7278 reigister info PCI: brcmstb: Add suspend and resume pm_ops PCI: brcmstb: Add bcm7278 PERST support PCI: brcmstb: Add control of rescal reset of: Include a dev param in of_dma_get_range() device core: Add ability to handle multiple dma offsets arm: dma-mapping: Invoke dma offset func if needed PCI: brcmstb: Set internal memory viewport sizes PCI: brcmstb: Accommodate MSI for older chips PCI: brcmstb: Set bus max burst size by chip type PCI: brcmstb: Add bcm7211, bcm7216, bcm7445, bcm7278 to match list .../bindings/pci/brcm,stb-pcie.yaml | 40 +- arch/arm/include/asm/dma-mapping.h | 13 +- drivers/ata/ahci_brcm.c | 14 +- drivers/of/address.c | 69 ++- drivers/of/device.c | 2 +- drivers/of/of_private.h | 8 +- drivers/pci/controller/Kconfig | 3 +- drivers/pci/controller/pcie-brcmstb.c | 408 +++++++++++++++--- drivers/usb/core/message.c | 3 + drivers/usb/core/usb.c | 3 + include/linux/device.h | 10 +- include/linux/dma-direct.h | 10 +- include/linux/dma-mapping.h | 46 ++ kernel/dma/Kconfig | 13 + 14 files changed, 559 insertions(+), 83 deletions(-)