Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933013AbbLGUcS (ORCPT ); Mon, 7 Dec 2015 15:32:18 -0500 Received: from mail-pf0-f176.google.com ([209.85.192.176]:36170 "EHLO mail-pf0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932690AbbLGUcO (ORCPT ); Mon, 7 Dec 2015 15:32:14 -0500 Message-ID: <5665ECC3.9040808@gmail.com> Date: Mon, 07 Dec 2015 12:32:03 -0800 From: Florian Fainelli User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.8.0 MIME-Version: 1.0 To: Bjorn Helgaas , Ray Jui CC: Bjorn Helgaas , Marc Zyngier , Arnd Bergmann , Hauke Mehrtens , linux-kernel@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, linux-pci@vger.kernel.org Subject: Re: [PATCH v5 0/5] Add iProc PCIe PAXC and MSI support References: <1449250502-10679-1-git-send-email-rjui@broadcom.com> <20151207170122.GI7994@localhost> In-Reply-To: <20151207170122.GI7994@localhost> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4139 Lines: 81 On 07/12/15 09:01, Bjorn Helgaas wrote: > On Fri, Dec 04, 2015 at 09:34:57AM -0800, Ray Jui wrote: >> This patch series adds support for the iProc PAXC interface and support for >> event queue based MSI, integrated in the iProc PCIe core >> >> This patch series is based on Linux v4.4-rc1 and is avaliable here: >> https://github.com/Broadcom/cygnus-linux/tree/iproc-msi-v5 >> >> Changes from v4: >> - Make 'iproc_msi_exit' inline to fix compiler warning when CONFIG_PCI_MSI >> is disabled >> >> Changes from v3: >> - Detect the number of possible CPUs instead online CPUs in the driver. Note >> CPU notifier based implementation still needs to be added in the future, for >> proper support of MSI IRQ affinity when CPU is brought online/offline at >> runtime. Support in this dirver will be added when we support CPU hotplug in >> one of iProc family of SoCs so the changes can be tested >> - Use dma_zalloc_coherent for event queue host memory allocation and zeoring >> >> Changes from v2: >> - Improved descriptions in the iProc MSI commit message >> - Removed redundant host memory used for MSI address. The MSI posted writes >> never really hit the memory. Use iProc PCIe controller base address instead >> - Fixed deadlock when MSI vectors are used up >> - Enforced the number of MSI groups to always be multiple of the number of CPUs >> - Improved the efficiency of MSI event processing by only updating the head >> pointer after finishing processing all outstanding events >> - Fixed error handling code to make sure all configurations are rolled back >> - Added code to zero the host memory used for event queues after allocation >> - Removed redundant 'brcm,num-eq-region' and 'brcm,num-msi-msg-region' DT >> properties. Now determine the number of regions based on interface type >> - Other misc. changes >> >> Changes from v1: >> - Fixed incorrect 1-to-1 mapping between MSI vector and GIC interrupt. Now the >> driver supports multiple MSI vectors per GIC interrupt >> - Added MSI IRQ affinity support by distributing GIC interrupts across >> available CPU cores and dynamically steer MSI vectors to the target CPU >> - replace readl/writel with readl_relaxed/writel_relaxed since all register >> accesses within the iProc MSI driver are to/from the same I/O block, i.e., the >> iProc PCIe core >> - Removed all redundant irq_chip callback assignments >> - Changed to use uncached host memory for both MSI posted writes and event >> queues >> - Add functions to free resources in error/exit cases >> - In pcie-iproc-platform.c, pass in interface type through OF device data >> - Moved define for max number of interrupts from pcie-iproc.h to >> pcie-iproc-msi.c >> - Other misc. changes >> >> Ray Jui (5): >> PCI: iproc: Update iProc PCIe device tree binding >> PCI: iproc: Add PAXC interface support >> PCI: iproc: Add iProc PCIe MSI device tree binding >> PCI: iproc: Add iProc PCIe MSI support >> ARM: dts: Enable MSI support for Broadcom Cygnus >> >> .../devicetree/bindings/pci/brcm,iproc-pcie.txt | 40 +- >> arch/arm/boot/dts/bcm-cygnus.dtsi | 22 + >> drivers/pci/host/Kconfig | 9 + >> drivers/pci/host/Makefile | 1 + >> drivers/pci/host/pcie-iproc-bcma.c | 1 + >> drivers/pci/host/pcie-iproc-msi.c | 675 +++++++++++++++++++++ >> drivers/pci/host/pcie-iproc-platform.c | 25 +- >> drivers/pci/host/pcie-iproc.c | 228 +++++-- >> drivers/pci/host/pcie-iproc.h | 42 +- >> 9 files changed, 1000 insertions(+), 43 deletions(-) >> create mode 100644 drivers/pci/host/pcie-iproc-msi.c > > Applied to pci/host-iproc for v4.5, with Marc's reviewed-by on "PCI: iproc: > Add iProc PCIe MSI support". Thanks! Including the last patch, or should I take this one via arm-soc? Thanks! -- Florian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/