From patchwork Sun Jun 7 16:19:57 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuppuswamy Sathyanarayanan X-Patchwork-Id: 1304762 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@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=linux-pci-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 49g1nW3Lbsz9sRN for ; Mon, 8 Jun 2020 02:20:15 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726698AbgFGQUO (ORCPT ); Sun, 7 Jun 2020 12:20:14 -0400 Received: from mga02.intel.com ([134.134.136.20]:61715 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726571AbgFGQUO (ORCPT ); Sun, 7 Jun 2020 12:20:14 -0400 IronPort-SDR: Iva6gbObgxqcby4FTdFc02/1aehU7EQ+YiATXo3mjEKeFcqi3dXVnTeGrIVHE0vJXZ+aRdnOIz ZMB1rNmWO46w== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Jun 2020 09:20:13 -0700 IronPort-SDR: A7erMCZuHEnPqeujE87ppx7rXtJlpuBRT+JasZ/RmTtBeqtpNtWo/rE+nJ5AalzbUdO03yMJOE qSGl+twnhMiA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,484,1583222400"; d="scan'208";a="348938488" Received: from skaushal-mobl5.gar.corp.intel.com (HELO localhost.localdomain) ([10.255.229.193]) by orsmga001.jf.intel.com with ESMTP; 07 Jun 2020 09:20:13 -0700 From: sathyanarayanan.kuppuswamy@linux.intel.com To: bhelgaas@google.com Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, ashok.raj@intel.com, sathyanarayanan.kuppuswamy@linux.intel.com Subject: [PATCH v5 0/4] Simplify PCIe native ownership detection logic Date: Sun, 7 Jun 2020 09:19:57 -0700 Message-Id: X-Mailer: git-send-email 2.17.1 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Kuppuswamy Sathyanarayanan Currently, PCIe capabilities ownership status is detected by verifying the status of pcie_ports_native, pcie_ports_dpc_native and _OSC negotiated results (cached in struct pci_host_bridge ->native_* members). But this logic can be simplified, and we can use only struct pci_host_bridge ->native_* members to detect it. This patchset removes the distributed checks for pcie_ports_native, pcie_ports_dpc_native parameters. Changes since v4: * Changed the patch set title (Original link: https://lkml.org/lkml/2020/5/26/1710) * Added AER/DPC dependency logic cleanup fixes. Kuppuswamy Sathyanarayanan (4): ACPI/PCI: Ignore _OSC negotiation result if pcie_ports_native is set. ACPI/PCI: Ignore _OSC DPC negotiation result if pcie_ports_dpc_native is set. PCI/portdrv: Remove redundant pci_aer_available() check in DPC enable logic PCI/DPC: Move AER/DPC dependency checks out of DPC driver drivers/acpi/pci_root.c | 28 ++++++++++++++++------------ drivers/pci/hotplug/pciehp_core.c | 2 +- drivers/pci/pci-acpi.c | 3 --- drivers/pci/pcie/aer.c | 2 +- drivers/pci/pcie/dpc.c | 4 +--- drivers/pci/pcie/portdrv.h | 2 -- drivers/pci/pcie/portdrv_core.c | 13 +++++-------- drivers/pci/probe.c | 4 +++- include/linux/pci.h | 2 ++ 9 files changed, 29 insertions(+), 31 deletions(-)