From patchwork Tue Apr 21 13:21:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shiju Jose X-Patchwork-Id: 11501357 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 4822B14B4 for ; Tue, 21 Apr 2020 13:23:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3151E2078C for ; Tue, 21 Apr 2020 13:23:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728956AbgDUNXg (ORCPT ); Tue, 21 Apr 2020 09:23:36 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:2861 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728859AbgDUNXf (ORCPT ); Tue, 21 Apr 2020 09:23:35 -0400 Received: from DGGEMS403-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id E1C2A57CB1E21CE031AC; Tue, 21 Apr 2020 21:23:30 +0800 (CST) Received: from DESKTOP-6T4S3DQ.china.huawei.com (10.47.83.77) by DGGEMS403-HUB.china.huawei.com (10.3.19.203) with Microsoft SMTP Server id 14.3.487.0; Tue, 21 Apr 2020 21:23:21 +0800 From: Shiju Jose To: , , , , , , , , , , , , CC: , , , , Shiju Jose Subject: [RESEND PATCH v7 0/6] ACPI / APEI: Add support to notify non-fatal HW errors Date: Tue, 21 Apr 2020 14:21:30 +0100 Message-ID: <20200421132136.1595-1-shiju.jose@huawei.com> X-Mailer: git-send-email 2.26.0.windows.1 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [10.47.83.77] X-CFilter-Loop: Reflected Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Add common interface for queuing up the non-fatal HW errors and notify the registered kernel drivers.The interface supports drivers to register to receive the callback for the non-fatal HW errors, including the vendor specific HW errors, for the recovery and supports handling the non-fatal errors in the process context. Patch set 1. add the new interface to the APEI driver for the non-fatal HW error notification. 2. change the existing error handling for the standard errors to use the above notification interface. 2. add driver to handle HiSilicon hip PCIe controller's errors. Changes: V7: 1. Add changes in the APEI driver suggested by Borislav Petkov, for queuing up all the non-fatal HW errors to the work queue and notify the registered kernel drivers from the bottom half using blocking notifier, common interface for both standard and vendor-spcific errors. 2. Fix for further feedbacks in v5 HIP PCIe error handler driver by Bjorn Helgaas. V6: 1. Fix few changes in the patch subject line suggested by Bjorn Helgaas. V5: 1. Fix comments from James Morse. 1.1 Changed the notification method to use the atomic_notifier_chain. 1.2 Add the error handled status for the user space. V4: 1. Fix for the following smatch warning in the PCIe error driver, reported by kbuild test robot: warn: should '((((1))) << (9 + i))' be a 64 bit type? if (err->val_bits & BIT(HISI_PCIE_LOCAL_VALID_ERR_MISC + i)) ^^^ This should be BIT_ULL() because it goes up to 9 + 32. V3: 1. Fix the comments from Bjorn Helgaas. V2: 1. Changes in the HiSilicon PCIe controller's error handling driver for the comments from Bjorn Helgaas. 2. Changes in the APEI interface to support reporting the vendor error for module with multiple devices, but use the same section type. In the error handler will use socket id/sub module id etc to distinguish the device. V1: 1. Fix comments from James Morse. 2. add driver to handle HiSilicon hip08 PCIe controller's errors, which is an application of the above interface. Shiju Jose (5): ACPI / APEI: Add support to queuing up the non-fatal HW errors and notify ACPI / APEI: Add callback for memory errors to the GHES notifier ACPI / APEI: Add callback for AER to the GHES notifier ACPI / APEI: Add callback for ARM HW errors to the GHES notifier ACPI / APEI: Add callback for non-standard HW errors to the GHES notifier Yicong Yang (1): PCI: hip: Add handling of HiSilicon HIP PCIe controller errors drivers/acpi/apei/ghes.c | 268 ++++++++++++++++--- drivers/pci/controller/Kconfig | 8 + drivers/pci/controller/Makefile | 1 + drivers/pci/controller/pcie-hisi-error.c | 323 +++++++++++++++++++++++ include/acpi/ghes.h | 28 ++ 5 files changed, 595 insertions(+), 33 deletions(-) create mode 100644 drivers/pci/controller/pcie-hisi-error.c