From mboxrd@z Thu Jan 1 00:00:00 1970 From: wangyijing@huawei.com (Yijing Wang) Date: Fri, 6 Mar 2015 17:33:23 +0800 Subject: [PATCH v5 06/29] PCI: Pass PCI domain number combined with root bus number In-Reply-To: <1425634426-437-1-git-send-email-wangyijing@huawei.com> References: <1425634426-437-1-git-send-email-wangyijing@huawei.com> Message-ID: <1425634426-437-7-git-send-email-wangyijing@huawei.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Now we could pass PCI domain combined with bus number in u32 argu. Because in arm/arm64, PCI domain number is assigned by pci_bus_assign_domain_nr(). So we leave pci_scan_root_bus() and pci_create_root_bus() in arm/arm64 unchanged. A new function pci_host_assign_domain_nr() will be introduced for arm/arm64 to assign domain number in later patch. Signed-off-by: Yijing Wang CC: Richard Henderson CC: Ivan Kokshaysky CC: Matt Turner CC: Tony Luck CC: Fenghua Yu CC: Michal Simek CC: Ralf Baechle CC: Benjamin Herrenschmidt CC: Paul Mackerras CC: Michael Ellerman CC: Sebastian Ott CC: Gerald Schaefer CC: "David S. Miller" CC: Chris Metcalf CC: Thomas Gleixner CC: Konrad Rzeszutek Wilk CC: linux-alpha at vger.kernel.org CC: linux-kernel at vger.kernel.org CC: linux-ia64 at vger.kernel.org CC: linux-mips at linux-mips.org CC: linuxppc-dev at lists.ozlabs.org CC: linux-s390 at vger.kernel.org CC: linux-sh at vger.kernel.org CC: sparclinux at vger.kernel.org CC: xen-devel at lists.xenproject.org Signed-off-by: Bjorn Helgaas --- arch/alpha/kernel/pci.c | 5 +++-- arch/alpha/kernel/sys_nautilus.c | 4 ++-- arch/ia64/pci/pci.c | 4 ++-- arch/ia64/sn/kernel/io_init.c | 5 +++-- arch/microblaze/pci/pci-common.c | 5 +++-- arch/mips/pci/pci.c | 4 ++-- arch/powerpc/kernel/pci-common.c | 5 +++-- arch/s390/pci/pci.c | 5 +++-- arch/sh/drivers/pci/pci.c | 5 +++-- arch/sparc/kernel/pci.c | 5 +++-- arch/tile/kernel/pci.c | 5 +++-- arch/tile/kernel/pci_gx.c | 5 +++-- arch/x86/pci/acpi.c | 7 ++++--- arch/x86/pci/common.c | 3 ++- drivers/pci/xen-pcifront.c | 5 +++-- 15 files changed, 42 insertions(+), 30 deletions(-) diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c index 5c845ad..deb0a36 100644 --- a/arch/alpha/kernel/pci.c +++ b/arch/alpha/kernel/pci.c @@ -336,8 +336,9 @@ common_init_pci(void) pci_add_resource_offset(&resources, hose->mem_space, hose->mem_space->start); - bus = pci_scan_root_bus(NULL, next_busno, alpha_mv.pci_ops, - hose, &resources); + bus = pci_scan_root_bus(NULL, + PCI_DOMBUS(hose->index, next_busno), + alpha_mv.pci_ops, hose, &resources); if (!bus) continue; hose->bus = bus; diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c index 700686d..be0bbeb 100644 --- a/arch/alpha/kernel/sys_nautilus.c +++ b/arch/alpha/kernel/sys_nautilus.c @@ -206,10 +206,10 @@ nautilus_init_pci(void) unsigned long memtop = max_low_pfn << PAGE_SHIFT; /* Scan our single hose. */ - bus = pci_scan_bus(0, alpha_mv.pci_ops, hose); + bus = pci_scan_bus(PCI_DOMBUS(hose->index, 0), + alpha_mv.pci_ops, hose); if (!bus) return; - hose->bus = bus; pcibios_claim_one_bus(bus); diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 48cc657..675749f 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -465,8 +465,8 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) * should handle the case here, but it appears that IA64 hasn't * such quirk. So we just ignore the case now. */ - pbus = pci_create_root_bus(NULL, bus, &pci_root_ops, controller, - &info->resources); + pbus = pci_create_root_bus(NULL, PCI_DOMBUS(domain, bus), + &pci_root_ops, controller, &info->resources); if (!pbus) { pci_free_resource_list(&info->resources); __release_pci_root_info(info); diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c index 1be65eb..7e0b7f9 100644 --- a/arch/ia64/sn/kernel/io_init.c +++ b/arch/ia64/sn/kernel/io_init.c @@ -266,8 +266,9 @@ sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus) pci_add_resource_offset(&resources, &res[1], prom_bussoft_ptr->bs_legacy_mem); - bus = pci_scan_root_bus(NULL, busnum, &pci_root_ops, controller, - &resources); + bus = pci_scan_root_bus(NULL, + PCI_DOMBUS(controller->segment, busnum), + &pci_root_ops, controller, &resources); if (bus == NULL) { kfree(res); kfree(controller); diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c index 6d8d173..34a32ec 100644 --- a/arch/microblaze/pci/pci-common.c +++ b/arch/microblaze/pci/pci-common.c @@ -1350,8 +1350,9 @@ static void pcibios_scan_phb(struct pci_controller *hose) pcibios_setup_phb_resources(hose, &resources); - bus = pci_scan_root_bus(hose->parent, hose->first_busno, - hose->ops, hose, &resources); + bus = pci_scan_root_bus(hose->parent, + PCI_DOMBUS(hose->global_number, hose->first_busno), + hose->ops, hose, &resources); if (bus == NULL) { pr_err("Failed to create bus for PCI domain %04x\n", hose->global_number); diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c index 9eb54b5..86f8d2b 100644 --- a/arch/mips/pci/pci.c +++ b/arch/mips/pci/pci.c @@ -92,8 +92,8 @@ static void pcibios_scanbus(struct pci_controller *hose) pci_add_resource_offset(&resources, hose->mem_resource, hose->mem_offset); pci_add_resource_offset(&resources, hose->io_resource, hose->io_offset); - bus = pci_scan_root_bus(NULL, next_busno, hose->pci_ops, hose, - &resources); + bus = pci_scan_root_bus(NULL, PCI_DOMBUS(hose->index, next_busno), + hose->pci_ops, hose, &resources); if (!bus) pci_free_resource_list(&resources); diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 2a525c9..a467aca 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -1612,8 +1612,9 @@ void pcibios_scan_phb(struct pci_controller *hose) pci_add_resource(&resources, &hose->busn); /* Create an empty bus for the toplevel */ - bus = pci_create_root_bus(hose->parent, hose->first_busno, - hose->ops, hose, &resources); + bus = pci_create_root_bus(hose->parent, + PCI_DOMBUS(hose->global_number, hose->first_busno), + hose->ops, hose, &resources); if (bus == NULL) { pr_err("Failed to create bus for PCI domain %04x\n", hose->global_number); diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index a2a7391..20e662f 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -770,8 +770,9 @@ static int zpci_scan_bus(struct zpci_dev *zdev) if (ret) return ret; - zdev->bus = pci_scan_root_bus(NULL, ZPCI_BUS_NR, &pci_root_ops, - zdev, &resources); + zdev->bus = pci_scan_root_bus(NULL, + PCI_DOMBUS(zdev->domain, ZPCI_BUS_NR), &pci_root_ops, + zdev, &resources); if (!zdev->bus) { zpci_cleanup_bus_resources(zdev); return -EIO; diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c index efc1051..116f80f 100644 --- a/arch/sh/drivers/pci/pci.c +++ b/arch/sh/drivers/pci/pci.c @@ -52,8 +52,9 @@ static void pcibios_scanbus(struct pci_channel *hose) pci_add_resource_offset(&resources, res, offset); } - bus = pci_scan_root_bus(NULL, next_busno, hose->pci_ops, hose, - &resources); + bus = pci_scan_root_bus(NULL, + PCI_DOMBUS(hose->index, next_busno), + hose->pci_ops, hose, &resources); hose->bus = bus; need_domain_info = need_domain_info || hose->index; diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c index 9ce5afe..838fe1e 100644 --- a/arch/sparc/kernel/pci.c +++ b/arch/sparc/kernel/pci.c @@ -667,8 +667,9 @@ struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm, pbm->busn.end = pbm->pci_last_busno; pbm->busn.flags = IORESOURCE_BUS; pci_add_resource(&resources, &pbm->busn); - bus = pci_create_root_bus(parent, pbm->pci_first_busno, pbm->pci_ops, - pbm, &resources); + bus = pci_create_root_bus(parent, + PCI_DOMBUS(pbm->index, pbm->pci_first_busno), + pbm->pci_ops, pbm, &resources); if (!bus) { printk(KERN_ERR "Failed to create bus for %s\n", node->full_name); diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c index 9475a74..25b0d9b 100644 --- a/arch/tile/kernel/pci.c +++ b/arch/tile/kernel/pci.c @@ -306,8 +306,9 @@ int __init pcibios_init(void) pci_add_resource(&resources, &ioport_resource); pci_add_resource(&resources, &iomem_resource); - bus = pci_scan_root_bus(NULL, 0, controller->ops, - controller, &resources); + bus = pci_scan_root_bus(NULL, + PCI_DOMBUS(controller->index, 0), + controller->ops, controller, &resources); controller->root_bus = bus; controller->last_busno = bus->busn_res.end; } diff --git a/arch/tile/kernel/pci_gx.c b/arch/tile/kernel/pci_gx.c index b1df847..f6f41f3 100644 --- a/arch/tile/kernel/pci_gx.c +++ b/arch/tile/kernel/pci_gx.c @@ -881,8 +881,9 @@ int __init pcibios_init(void) controller->mem_offset); pci_add_resource(&resources, &controller->io_space); controller->first_busno = next_busno; - bus = pci_scan_root_bus(NULL, next_busno, controller->ops, - controller, &resources); + bus = pci_scan_root_bus(NULL, + PCI_DOMBUS(controller->index, next_busno), + controller->ops, controller, &resources); controller->root_bus = bus; next_busno = bus->busn_res.end + 1; } diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index 6ac2738..ad0e926 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -424,9 +424,10 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) } if (!setup_mcfg_map(info, domain, (u8)root->secondary.start, - (u8)root->secondary.end, root->mcfg_addr)) - bus = pci_create_root_bus(NULL, busnum, &pci_root_ops, - sd, &resources); + (u8)root->secondary.end, root->mcfg_addr)) + bus = pci_create_root_bus(NULL, + PCI_DOMBUS(domain, busnum), &pci_root_ops, + sd, &resources); if (bus) { pci_scan_child_bus(bus); diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 0cbc723..0160280 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -486,7 +486,8 @@ void pcibios_scan_root(int busnum) sd->node = x86_pci_root_bus_node(busnum); x86_pci_root_bus_resources(busnum, &resources); printk(KERN_DEBUG "PCI: Probing PCI hardware (bus %02x)\n", busnum); - bus = pci_scan_root_bus(NULL, busnum, &pci_root_ops, sd, &resources); + bus = pci_scan_root_bus(NULL, PCI_DOMBUS(0, busnum), + &pci_root_ops, sd, &resources); if (!bus) { pci_free_resource_list(&resources); kfree(sd); diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c index 7057930..d5dfb70 100644 --- a/drivers/pci/xen-pcifront.c +++ b/drivers/pci/xen-pcifront.c @@ -478,8 +478,9 @@ static int pcifront_scan_root(struct pcifront_device *pdev, pci_lock_rescan_remove(); - b = pci_scan_root_bus(&pdev->xdev->dev, bus, - &pcifront_bus_ops, sd, &resources); + b = pci_scan_root_bus(&pdev->xdev->dev, + PCI_DOMBUS(sd->domain, bus), + &pcifront_bus_ops, sd, &resources); if (!b) { dev_err(&pdev->xdev->dev, "Error creating PCI Frontend Bus!\n"); -- 1.7.1