From patchwork Thu Jul 26 22:02:47 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Garrett X-Patchwork-Id: 173528 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id E80642C0095 for ; Fri, 27 Jul 2012 08:04:03 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754035Ab2GZWDQ (ORCPT ); Thu, 26 Jul 2012 18:03:16 -0400 Received: from mx1.redhat.com ([209.132.183.28]:58020 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754010Ab2GZWDL (ORCPT ); Thu, 26 Jul 2012 18:03:11 -0400 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id q6QM36dJ001635 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 26 Jul 2012 18:03:06 -0400 Received: from cavan.codon.org.uk (ovpn-113-108.phx2.redhat.com [10.3.113.108]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id q6QM34TC005017 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=NO); Thu, 26 Jul 2012 18:03:05 -0400 Received: from 209-6-41-104.c3-0.smr-ubr1.sbo-smr.ma.cable.rcn.com ([209.6.41.104] helo=localhost.localdomain) by cavan.codon.org.uk with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.72) (envelope-from ) id 1SuW99-0007Tc-38; Thu, 26 Jul 2012 23:03:03 +0100 From: Matthew Garrett To: matt.fleming@intel.com Cc: linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org, x86@kernel.org, linux-pci@vger.kernel.org, bhelgaas@google.com, Matthew Garrett Subject: [PATCH 2/4] PCI: Add pcibios_add_device Date: Thu, 26 Jul 2012 18:02:47 -0400 Message-Id: <1343340169-7772-3-git-send-email-mjg@redhat.com> In-Reply-To: <1343340169-7772-1-git-send-email-mjg@redhat.com> References: <1343340169-7772-1-git-send-email-mjg@redhat.com> X-SA-Do-Not-Run: Yes X-SA-Exim-Connect-IP: 209.6.41.104 X-SA-Exim-Mail-From: mjg@redhat.com X-SA-Exim-Scanned: No (on cavan.codon.org.uk); SAEximRunCond expanded to false X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Platforms may want to provide architecture-specific functionality during PCI enumeration. Add a pcibios_add_device() call that architectures can override to do so. Signed-off-by: Matthew Garrett --- drivers/pci/bus.c | 5 +++++ drivers/pci/pci.c | 13 +++++++++++++ include/linux/pci.h | 1 + 3 files changed, 19 insertions(+) diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 4b0970b..e2f447e 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -166,6 +166,11 @@ int pci_bus_add_device(struct pci_dev *dev) int retval; pci_fixup_device(pci_fixup_final, dev); + + retval = pcibios_add_device(dev); + if (retval) + return retval; + retval = device_add(&dev->dev); if (retval) return retval; diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index f3ea977..fec3a92 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1385,6 +1385,19 @@ void pcim_pin_device(struct pci_dev *pdev) dr->pinned = 1; } +/* + * pcibios_add_device - provide arch specific hooks when adding device dev + * @dev: the PCI device being added + * + * Permits the platform to provide architecture specific functionality when + * devices are added. This is the default implementation. Architecture + * implementations can override this. + */ +int __weak pcibios_add_device(struct pci_dev *dev) +{ + return 0; +} + /** * pcibios_disable_device - disable arch specific PCI resources for device dev * @dev: the PCI device to disable diff --git a/include/linux/pci.h b/include/linux/pci.h index 5faa831..6a2625c 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1582,6 +1582,7 @@ void pcibios_disable_device(struct pci_dev *dev); void pcibios_set_master(struct pci_dev *dev); int pcibios_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state state); +int pcibios_add_device(struct pci_dev *dev); #ifdef CONFIG_PCI_MMCONFIG extern void __init pci_mmcfg_early_init(void);