From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from acsinet15.oracle.com ([141.146.126.227]:18422 "EHLO acsinet15.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932156Ab2EGUaX (ORCPT ); Mon, 7 May 2012 16:30:23 -0400 From: Yinghai Lu To: Bjorn Helgaas , Benjamin Herrenschmidt , Tony Luck , David Miller , x86 Cc: Dominik Brodowski , Andrew Morton , Linus Torvalds , Greg Kroah-Hartman , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Yinghai Lu Subject: [PATCH 04/21] PCI: Add busn_res for pci domain. Date: Mon, 7 May 2012 13:29:49 -0700 Message-Id: <1336422606-4244-5-git-send-email-yinghai@kernel.org> In-Reply-To: <1336422606-4244-1-git-send-email-yinghai@kernel.org> References: <1336422606-4244-1-git-send-email-yinghai@kernel.org> Sender: linux-pci-owner@vger.kernel.org List-ID: pci root bus busn_res will be registered under that. Signed-off-by: Yinghai Lu --- drivers/pci/probe.c | 30 ++++++++++++++++++++++++++++++ 1 files changed, 30 insertions(+), 0 deletions(-) diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 651b096..674a477 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -20,6 +20,36 @@ LIST_HEAD(pci_root_buses); EXPORT_SYMBOL(pci_root_buses); +static LIST_HEAD(pci_domain_busn_res_list); + +struct pci_domain_busn_res { + struct list_head list; + struct resource res; + int domain_nr; +}; + +static struct resource *get_pci_domain_busn_res(int domain_nr) +{ + struct pci_domain_busn_res *r; + + list_for_each_entry(r, &pci_domain_busn_res_list, list) + if (r->domain_nr == domain_nr) + return &r->res; + + r = kzalloc(sizeof(*r), GFP_KERNEL); + if (!r) + return NULL; + + r->domain_nr = domain_nr; + r->res.start = 0; + r->res.end = 0xff; + r->res.flags = IORESOURCE_BUS | IORESOURCE_PCI_FIXED; + + list_add_tail(&r->list, &pci_domain_busn_res_list); + + return &r->res; +} + static int find_anything(struct device *dev, void *data) { return 1; -- 1.7.7