From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754031Ab2A1Cuz (ORCPT ); Fri, 27 Jan 2012 21:50:55 -0500 Received: from rcsinet15.oracle.com ([148.87.113.117]:26480 "EHLO rcsinet15.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752913Ab2A1Ct4 (ORCPT ); Fri, 27 Jan 2012 21:49:56 -0500 From: Yinghai Lu To: Jesse Barnes , Benjamin Herrenschmidt , Tony Luck Cc: Bjorn Helgaas , Linus Torvalds , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Yinghai Lu Subject: [PATCH 04/13] PCI, x86: Register busn_res for root buses Date: Fri, 27 Jan 2012 18:49:22 -0800 Message-Id: <1327718971-9598-5-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.7.7 In-Reply-To: <1327718971-9598-1-git-send-email-yinghai@kernel.org> References: <1327718971-9598-1-git-send-email-yinghai@kernel.org> X-Source-IP: acsinet22.oracle.com [141.146.126.238] X-Auth-Type: Internal IP X-CT-RefId: str=0001.0A090202.4F23624E.005B,ss=1,re=0.000,fgs=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org update x86_pci_root_bus_resources() to get bus_max for non-acpi case. Signed-off-by: Yinghai Lu --- arch/x86/include/asm/topology.h | 3 ++- arch/x86/pci/acpi.c | 8 +++++--- arch/x86/pci/bus_numa.c | 8 +++++++- arch/x86/pci/common.c | 11 +++++++---- 4 files changed, 21 insertions(+), 9 deletions(-) diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h index b9676ae..ad4060e 100644 --- a/arch/x86/include/asm/topology.h +++ b/arch/x86/include/asm/topology.h @@ -172,7 +172,8 @@ static inline void arch_fix_phys_package_id(int num, u32 slot) } struct pci_bus; -void x86_pci_root_bus_resources(int bus, struct list_head *resources); +void x86_pci_root_bus_resources(int bus, int *bus_max, + struct list_head *resources); #ifdef CONFIG_SMP #define mc_capable() ((boot_cpu_data.x86_max_cores > 1) && \ diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index daa4249..b25b5b1 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -348,6 +348,7 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root) struct acpi_device *device = root->device; int domain = root->segment; int busnum = root->secondary.start; + int busmax = root->secondary.end; LIST_HEAD(resources); struct pci_bus *bus; struct pci_sysdata *sd; @@ -410,12 +411,13 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root) * defaults or native bridge info if we're ignoring _CRS. */ if (!pci_use_crs) - x86_pci_root_bus_resources(busnum, &resources); + x86_pci_root_bus_resources(busnum, &busmax, &resources); bus = pci_create_root_bus(NULL, busnum, &pci_root_ops, sd, &resources); - if (bus) + if (bus) { + pci_bus_insert_busn_res(bus, busnum, busmax); bus->subordinate = pci_scan_child_bus(bus); - else + } else pci_free_resource_list(&resources); } diff --git a/arch/x86/pci/bus_numa.c b/arch/x86/pci/bus_numa.c index fd3f655..5213cd8 100644 --- a/arch/x86/pci/bus_numa.c +++ b/arch/x86/pci/bus_numa.c @@ -7,7 +7,8 @@ int pci_root_num; struct pci_root_info pci_root_info[PCI_ROOT_NR]; -void x86_pci_root_bus_resources(int bus, struct list_head *resources) +void x86_pci_root_bus_resources(int bus, int *bus_max, + struct list_head *resources) { int i; int j; @@ -28,6 +29,7 @@ void x86_pci_root_bus_resources(int bus, struct list_head *resources) bus); info = &pci_root_info[i]; + *bus_max = info->bus_max; for (j = 0; j < info->res_num; j++) { struct resource *res; struct resource *root; @@ -51,6 +53,10 @@ default_resources: printk(KERN_DEBUG "PCI: root bus %02x: using default resources\n", bus); pci_add_resource(resources, &ioport_resource); pci_add_resource(resources, &iomem_resource); + if (!bus) + *bus_max = 0xff; + else if (!*bus_max) + *bus_max = bus; } void __devinit update_res(struct pci_root_info *info, resource_size_t start, diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 323481e..ce0aefc 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -433,6 +433,7 @@ struct pci_bus * __devinit pcibios_scan_root(int busnum) LIST_HEAD(resources); struct pci_bus *bus = NULL; struct pci_sysdata *sd; + int bus_max; while ((bus = pci_find_next_bus(bus)) != NULL) { if (bus->number == busnum) { @@ -454,8 +455,9 @@ struct pci_bus * __devinit pcibios_scan_root(int busnum) sd->node = get_mp_bus_to_node(busnum); printk(KERN_DEBUG "PCI: Probing PCI hardware (bus %02x)\n", busnum); - x86_pci_root_bus_resources(busnum, &resources); - bus = pci_scan_root_bus(NULL, busnum, &pci_root_ops, sd, &resources); + x86_pci_root_bus_resources(busnum, &bus_max, &resources); + bus = pci_scan_root_bus_max(NULL, busnum, bus_max, &pci_root_ops, sd, + &resources); if (!bus) { pci_free_resource_list(&resources); kfree(sd); @@ -643,6 +645,7 @@ struct pci_bus * __devinit pci_scan_bus_on_node(int busno, struct pci_ops *ops, LIST_HEAD(resources); struct pci_bus *bus = NULL; struct pci_sysdata *sd; + int bus_max; /* * Allocate per-root-bus (not per bus) arch-specific data. @@ -655,8 +658,8 @@ struct pci_bus * __devinit pci_scan_bus_on_node(int busno, struct pci_ops *ops, return NULL; } sd->node = node; - x86_pci_root_bus_resources(busno, &resources); - bus = pci_scan_root_bus(NULL, busno, ops, sd, &resources); + x86_pci_root_bus_resources(busno, &bus_max, &resources); + bus = pci_scan_root_bus_max(NULL, busno, bus_max, ops, sd, &resources); if (!bus) { pci_free_resource_list(&resources); kfree(sd); -- 1.7.7