| Message ID | 1428053164-28277-5-git-send-email-wangyijing@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Yijing, On 03/04/2015 11:25, Yijing Wang wrote: > Save domain in pci_host_bridge, so we could get domain > from pci_host_bridge, and at the end of series, we could > clean up the arch specific pci_domain_nr(). For arm, > we pass -1 as the domain number, we would update the > domain number in core by pci_bus_assign_domain_nr(). > For the mvebu part I tested on Armada XP, Armada 375 and Armada 38x SoCs, and I didn't saw any regression. So you can add my: Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Thanks, Gregory > Signed-off-by: Yijing Wang <wangyijing@huawei.com> > --- > arch/alpha/kernel/pci.c | 4 ++-- > arch/alpha/kernel/sys_nautilus.c | 2 +- > arch/arm/kernel/bios32.c | 2 +- > arch/arm/mach-dove/pcie.c | 2 +- > arch/arm/mach-iop13xx/pci.c | 4 ++-- > arch/arm/mach-mv78xx0/pcie.c | 2 +- > arch/arm/mach-orion5x/pci.c | 4 ++-- > arch/frv/mb93090-mb00/pci-vdk.c | 3 ++- > arch/ia64/pci/pci.c | 4 ++-- > arch/ia64/sn/kernel/io_init.c | 4 ++-- > arch/m68k/coldfire/pci.c | 2 +- > arch/microblaze/pci/pci-common.c | 4 ++-- > arch/mips/pci/pci.c | 4 ++-- > arch/mn10300/unit-asb2305/pci.c | 3 ++- > arch/powerpc/kernel/pci-common.c | 4 ++-- > arch/s390/pci/pci.c | 4 ++-- > arch/sh/drivers/pci/pci.c | 4 ++-- > arch/sparc/kernel/leon_pci.c | 2 +- > arch/sparc/kernel/pci.c | 4 ++-- > arch/sparc/kernel/pcic.c | 2 +- > arch/tile/kernel/pci.c | 4 ++-- > arch/tile/kernel/pci_gx.c | 4 ++-- > arch/unicore32/kernel/pci.c | 2 +- > arch/x86/pci/acpi.c | 4 ++-- > arch/x86/pci/common.c | 2 +- > arch/xtensa/kernel/pci.c | 2 +- > drivers/parisc/dino.c | 2 +- > drivers/parisc/lba_pci.c | 2 +- > drivers/pci/host/pci-mvebu.c | 2 +- > drivers/pci/host/pci-tegra.c | 4 ++-- > drivers/pci/host/pci-versatile.c | 3 ++- > drivers/pci/host/pci-xgene.c | 2 +- > drivers/pci/host/pcie-designware.c | 2 +- > drivers/pci/host/pcie-xilinx.c | 2 +- > drivers/pci/hotplug/ibmphp_core.c | 2 +- > drivers/pci/probe.c | 21 +++++++++++++-------- > drivers/pci/xen-pcifront.c | 2 +- > include/linux/pci.h | 8 +++++--- > 38 files changed, 72 insertions(+), 62 deletions(-) > > diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c > index 82f738e..2b0bce9 100644 > --- a/arch/alpha/kernel/pci.c > +++ b/arch/alpha/kernel/pci.c > @@ -336,8 +336,8 @@ 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, 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..9614e4e 100644 > --- a/arch/alpha/kernel/sys_nautilus.c > +++ b/arch/alpha/kernel/sys_nautilus.c > @@ -206,7 +206,7 @@ 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(hose->index, 0, alpha_mv.pci_ops, hose); > if (!bus) > return; > > diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c > index ab19b7c..fec2c90 100644 > --- a/arch/arm/kernel/bios32.c > +++ b/arch/arm/kernel/bios32.c > @@ -486,7 +486,7 @@ static void pcibios_init_hw(struct device *parent, struct hw_pci *hw, > if (hw->scan) > sys->bus = hw->scan(nr, sys); > else > - sys->bus = pci_scan_root_bus(parent, sys->busnr, > + sys->bus = pci_scan_root_bus(parent, -1, sys->busnr, > hw->ops, sys, &sys->resources); > > if (!sys->bus) > diff --git a/arch/arm/mach-dove/pcie.c b/arch/arm/mach-dove/pcie.c > index 91fe971..a379287 100644 > --- a/arch/arm/mach-dove/pcie.c > +++ b/arch/arm/mach-dove/pcie.c > @@ -160,7 +160,7 @@ dove_pcie_scan_bus(int nr, struct pci_sys_data *sys) > return NULL; > } > > - return pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys, > + return pci_scan_root_bus(NULL, -1, sys->busnr, &pcie_ops, sys, > &sys->resources); > } > > diff --git a/arch/arm/mach-iop13xx/pci.c b/arch/arm/mach-iop13xx/pci.c > index 9082b84..bc4ba7e 100644 > --- a/arch/arm/mach-iop13xx/pci.c > +++ b/arch/arm/mach-iop13xx/pci.c > @@ -535,12 +535,12 @@ struct pci_bus *iop13xx_scan_bus(int nr, struct pci_sys_data *sys) > while(time_before(jiffies, atux_trhfa_timeout)) > udelay(100); > > - bus = pci_bus_atux = pci_scan_root_bus(NULL, sys->busnr, > + bus = pci_bus_atux = pci_scan_root_bus(NULL, -1, sys->busnr, > &iop13xx_atux_ops, > sys, &sys->resources); > break; > case IOP13XX_INIT_ATU_ATUE: > - bus = pci_bus_atue = pci_scan_root_bus(NULL, sys->busnr, > + bus = pci_bus_atue = pci_scan_root_bus(NULL, -1, sys->busnr, > &iop13xx_atue_ops, > sys, &sys->resources); > break; > diff --git a/arch/arm/mach-mv78xx0/pcie.c b/arch/arm/mach-mv78xx0/pcie.c > index 097ea4c..4010a95 100644 > --- a/arch/arm/mach-mv78xx0/pcie.c > +++ b/arch/arm/mach-mv78xx0/pcie.c > @@ -202,7 +202,7 @@ mv78xx0_pcie_scan_bus(int nr, struct pci_sys_data *sys) > return NULL; > } > > - return pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys, > + return pci_scan_root_bus(NULL, -1, sys->busnr, &pcie_ops, sys, > &sys->resources); > } > > diff --git a/arch/arm/mach-orion5x/pci.c b/arch/arm/mach-orion5x/pci.c > index b02f394..83898cc 100644 > --- a/arch/arm/mach-orion5x/pci.c > +++ b/arch/arm/mach-orion5x/pci.c > @@ -558,11 +558,11 @@ int __init orion5x_pci_sys_setup(int nr, struct pci_sys_data *sys) > struct pci_bus __init *orion5x_pci_sys_scan_bus(int nr, struct pci_sys_data *sys) > { > if (nr == 0) > - return pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys, > + return pci_scan_root_bus(NULL, -1, sys->busnr, &pcie_ops, sys, > &sys->resources); > > if (nr == 1 && !orion5x_pci_disabled) > - return pci_scan_root_bus(NULL, sys->busnr, &pci_ops, sys, > + return pci_scan_root_bus(NULL, -1, sys->busnr, &pci_ops, sys, > &sys->resources); > > BUG(); > diff --git a/arch/frv/mb93090-mb00/pci-vdk.c b/arch/frv/mb93090-mb00/pci-vdk.c > index f211839..719fb75 100644 > --- a/arch/frv/mb93090-mb00/pci-vdk.c > +++ b/arch/frv/mb93090-mb00/pci-vdk.c > @@ -384,7 +384,8 @@ int __init pcibios_init(void) > printk("PCI: Probing PCI hardware\n"); > pci_add_resource(&resources, &pci_ioport_resource); > pci_add_resource(&resources, &pci_iomem_resource); > - bus = pci_scan_root_bus(NULL, 0, pci_root_ops, NULL, &resources); > + bus = pci_scan_root_bus(NULL, 0, 0, pci_root_ops, NULL, > + &resources); > > pcibios_irq_init(); > pcibios_fixup_irqs(); > diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c > index 48cc657..c642bc8 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, 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..d528814 100644 > --- a/arch/ia64/sn/kernel/io_init.c > +++ b/arch/ia64/sn/kernel/io_init.c > @@ -266,8 +266,8 @@ 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, controller->segment, busnum, > + &pci_root_ops, controller, &resources); > if (bus == NULL) { > kfree(res); > kfree(controller); > diff --git a/arch/m68k/coldfire/pci.c b/arch/m68k/coldfire/pci.c > index 821de92..63c0c2f 100644 > --- a/arch/m68k/coldfire/pci.c > +++ b/arch/m68k/coldfire/pci.c > @@ -312,7 +312,7 @@ static int __init mcf_pci_init(void) > set_current_state(TASK_UNINTERRUPTIBLE); > schedule_timeout(msecs_to_jiffies(200)); > > - rootbus = pci_scan_bus(0, &mcf_pci_ops, NULL); > + rootbus = pci_scan_bus(0, 0, &mcf_pci_ops, NULL); > if (!rootbus) > return -ENODEV; > > diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c > index ae838ed..d232c8a 100644 > --- a/arch/microblaze/pci/pci-common.c > +++ b/arch/microblaze/pci/pci-common.c > @@ -1350,8 +1350,8 @@ 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, 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 8bb13a4..d6361d5 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, hose->index, next_busno, > + hose->pci_ops, hose, &resources); > hose->bus = bus; > > need_domain_info = need_domain_info || hose->index; > diff --git a/arch/mn10300/unit-asb2305/pci.c b/arch/mn10300/unit-asb2305/pci.c > index 3dfe2d3..a298172 100644 > --- a/arch/mn10300/unit-asb2305/pci.c > +++ b/arch/mn10300/unit-asb2305/pci.c > @@ -372,7 +372,8 @@ static int __init pcibios_init(void) > > pci_add_resource_offset(&resources, &pci_ioport_resource, io_offset); > pci_add_resource_offset(&resources, &pci_iomem_resource, mem_offset); > - bus = pci_scan_root_bus(NULL, 0, &pci_direct_ampci, NULL, &resources); > + bus = pci_scan_root_bus(NULL, 0, 0, &pci_direct_ampci, > + NULL, &resources); > if (!bus) > return 0; > > diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c > index 2a525c9..9913f6c 100644 > --- a/arch/powerpc/kernel/pci-common.c > +++ b/arch/powerpc/kernel/pci-common.c > @@ -1612,8 +1612,8 @@ 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, 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..7c5199b 100644 > --- a/arch/s390/pci/pci.c > +++ b/arch/s390/pci/pci.c > @@ -770,8 +770,8 @@ 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, 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 d5462b7..293249a 100644 > --- a/arch/sh/drivers/pci/pci.c > +++ b/arch/sh/drivers/pci/pci.c > @@ -52,8 +52,8 @@ 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, 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/leon_pci.c b/arch/sparc/kernel/leon_pci.c > index 4371f72..36d702d 100644 > --- a/arch/sparc/kernel/leon_pci.c > +++ b/arch/sparc/kernel/leon_pci.c > @@ -32,7 +32,7 @@ void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info) > info->busn.flags = IORESOURCE_BUS; > pci_add_resource(&resources, &info->busn); > > - root_bus = pci_scan_root_bus(&ofdev->dev, 0, info->ops, info, > + root_bus = pci_scan_root_bus(&ofdev->dev, 0, 0, info->ops, info, > &resources); > if (!root_bus) { > pci_free_resource_list(&resources); > diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c > index 9e267ca..e40e456 100644 > --- a/arch/sparc/kernel/pci.c > +++ b/arch/sparc/kernel/pci.c > @@ -667,8 +667,8 @@ 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, 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/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c > index 24384e1..7e86410 100644 > --- a/arch/sparc/kernel/pcic.c > +++ b/arch/sparc/kernel/pcic.c > @@ -390,7 +390,7 @@ static void __init pcic_pbm_scan_bus(struct linux_pcic *pcic) > { > struct linux_pbm_info *pbm = &pcic->pbm; > > - pbm->pci_bus = pci_scan_bus(pbm->pci_first_busno, &pcic_ops, pbm); > + pbm->pci_bus = pci_scan_bus(0, pbm->pci_first_busno, &pcic_ops, pbm); > if (!pbm->pci_bus) > return; > > diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c > index 9475a74..6ae0871 100644 > --- a/arch/tile/kernel/pci.c > +++ b/arch/tile/kernel/pci.c > @@ -306,8 +306,8 @@ 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, 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..d47a698 100644 > --- a/arch/tile/kernel/pci_gx.c > +++ b/arch/tile/kernel/pci_gx.c > @@ -881,8 +881,8 @@ 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, controller->index, next_busno, > + controller->ops, controller, &resources); > controller->root_bus = bus; > next_busno = bus->busn_res.end + 1; > } > diff --git a/arch/unicore32/kernel/pci.c b/arch/unicore32/kernel/pci.c > index d45fa5f..ef9be16 100644 > --- a/arch/unicore32/kernel/pci.c > +++ b/arch/unicore32/kernel/pci.c > @@ -258,7 +258,7 @@ static int __init pci_common_init(void) > > pci_puv3_preinit(); > > - puv3_bus = pci_scan_bus(0, &pci_puv3_ops, NULL); > + puv3_bus = pci_scan_bus(0, 0, &pci_puv3_ops, NULL); > > if (!puv3_bus) > panic("PCI: unable to scan bus!"); > diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c > index 6ac2738..d2655d5 100644 > --- a/arch/x86/pci/acpi.c > +++ b/arch/x86/pci/acpi.c > @@ -425,8 +425,8 @@ 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); > + bus = pci_create_root_bus(NULL, 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 95a0ba7..9813266 100644 > --- a/arch/x86/pci/common.c > +++ b/arch/x86/pci/common.c > @@ -486,7 +486,7 @@ 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, 0, busnum, &pci_root_ops, sd, &resources); > if (!bus) { > pci_free_resource_list(&resources); > kfree(sd); > diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c > index b848cc3..66da4c3 100644 > --- a/arch/xtensa/kernel/pci.c > +++ b/arch/xtensa/kernel/pci.c > @@ -183,7 +183,7 @@ static int __init pcibios_init(void) > pci_ctrl->last_busno = 0xff; > INIT_LIST_HEAD(&resources); > pci_controller_apertures(pci_ctrl, &resources); > - bus = pci_scan_root_bus(NULL, pci_ctrl->first_busno, > + bus = pci_scan_root_bus(NULL, 0, pci_ctrl->first_busno, > pci_ctrl->ops, pci_ctrl, &resources); > if (!bus) > continue; > diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c > index a0580af..f375252 100644 > --- a/drivers/parisc/dino.c > +++ b/drivers/parisc/dino.c > @@ -986,7 +986,7 @@ static int __init dino_probe(struct parisc_device *dev) > ** with configuration accessor functions. > */ > dino_dev->hba.hba_bus = bus = pci_create_root_bus(&dev->dev, > - dino_current_bus, &dino_cfg_ops, NULL, &resources); > + 0, dino_current_bus, &dino_cfg_ops, NULL, &resources); > if (!bus) { > printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n", > dev_name(&dev->dev), dino_current_bus); > diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c > index dceb9dd..2949030 100644 > --- a/drivers/parisc/lba_pci.c > +++ b/drivers/parisc/lba_pci.c > @@ -1563,7 +1563,7 @@ lba_driver_probe(struct parisc_device *dev) > > dev->dev.platform_data = lba_dev; > lba_bus = lba_dev->hba.hba_bus = > - pci_create_root_bus(&dev->dev, lba_dev->hba.bus_num.start, > + pci_create_root_bus(&dev->dev, 0, lba_dev->hba.bus_num.start, > cfg_ops, NULL, &resources); > if (!lba_bus) { > pci_free_resource_list(&resources); > diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c > index 1309cfb..0cfc494 100644 > --- a/drivers/pci/host/pci-mvebu.c > +++ b/drivers/pci/host/pci-mvebu.c > @@ -755,7 +755,7 @@ static struct pci_bus *mvebu_pcie_scan_bus(int nr, struct pci_sys_data *sys) > struct mvebu_pcie *pcie = sys_to_pcie(sys); > struct pci_bus *bus; > > - bus = pci_create_root_bus(&pcie->pdev->dev, sys->busnr, > + bus = pci_create_root_bus(&pcie->pdev->dev, -1, sys->busnr, > &mvebu_pcie_ops, sys, &sys->resources); > if (!bus) > return NULL; > diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c > index 00e9272..94e9362 100644 > --- a/drivers/pci/host/pci-tegra.c > +++ b/drivers/pci/host/pci-tegra.c > @@ -635,8 +635,8 @@ static struct pci_bus *tegra_pcie_scan_bus(int nr, struct pci_sys_data *sys) > struct tegra_pcie *pcie = sys_to_pcie(sys); > struct pci_bus *bus; > > - bus = pci_create_root_bus(pcie->dev, sys->busnr, &tegra_pcie_ops, sys, > - &sys->resources); > + bus = pci_create_root_bus(pcie->dev, -1, sys->busnr, &tegra_pcie_ops, > + sys, &sys->resources); > if (!bus) > return NULL; > > diff --git a/drivers/pci/host/pci-versatile.c b/drivers/pci/host/pci-versatile.c > index e3a2450..58a22a9 100644 > --- a/drivers/pci/host/pci-versatile.c > +++ b/drivers/pci/host/pci-versatile.c > @@ -208,7 +208,8 @@ static int versatile_pci_probe(struct platform_device *pdev) > pci_add_flags(PCI_ENABLE_PROC_DOMAINS); > pci_add_flags(PCI_REASSIGN_ALL_BUS | PCI_REASSIGN_ALL_RSRC); > > - bus = pci_scan_root_bus(&pdev->dev, 0, &pci_versatile_ops, &sys, &pci_res); > + bus = pci_scan_root_bus(&pdev->dev, -1, 0, &pci_versatile_ops, > + &sys, &pci_res); > if (!bus) > return -ENOMEM; > > diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c > index aab5547..078e853 100644 > --- a/drivers/pci/host/pci-xgene.c > +++ b/drivers/pci/host/pci-xgene.c > @@ -499,7 +499,7 @@ static int xgene_pcie_probe_bridge(struct platform_device *pdev) > if (ret) > return ret; > > - bus = pci_create_root_bus(&pdev->dev, 0, > + bus = pci_create_root_bus(&pdev->dev, -1, 0, > &xgene_pcie_ops, port, &res); > if (!bus) > return -ENOMEM; > diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c > index 1f4ea6f..93778b9 100644 > --- a/drivers/pci/host/pcie-designware.c > +++ b/drivers/pci/host/pcie-designware.c > @@ -728,7 +728,7 @@ static struct pci_bus *dw_pcie_scan_bus(int nr, struct pci_sys_data *sys) > struct pcie_port *pp = sys_to_pcie(sys); > > pp->root_bus_nr = sys->busnr; > - bus = pci_create_root_bus(pp->dev, sys->busnr, > + bus = pci_create_root_bus(pp->dev, -1, sys->busnr, > &dw_pcie_ops, sys, &sys->resources); > if (!bus) > return NULL; > diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c > index f1a06a0..b5a72a5 100644 > --- a/drivers/pci/host/pcie-xilinx.c > +++ b/drivers/pci/host/pcie-xilinx.c > @@ -647,7 +647,7 @@ static struct pci_bus *xilinx_pcie_scan_bus(int nr, struct pci_sys_data *sys) > struct pci_bus *bus; > > port->root_busno = sys->busnr; > - bus = pci_scan_root_bus(port->dev, sys->busnr, &xilinx_pcie_ops, > + bus = pci_scan_root_bus(port->dev, -1, sys->busnr, &xilinx_pcie_ops, > sys, &sys->resources); > > return bus; > diff --git a/drivers/pci/hotplug/ibmphp_core.c b/drivers/pci/hotplug/ibmphp_core.c > index 1530247..db6240e 100644 > --- a/drivers/pci/hotplug/ibmphp_core.c > +++ b/drivers/pci/hotplug/ibmphp_core.c > @@ -765,7 +765,7 @@ static u8 bus_structure_fixup(u8 busno) > (l != 0x0000) && (l != 0xffff)) { > debug("%s - Inside bus_structure_fixup()\n", > __func__); > - b = pci_scan_bus(busno, ibmphp_pci_bus->ops, NULL); > + b = pci_scan_bus(0, busno, ibmphp_pci_bus->ops, NULL); > if (!b) > continue; > > diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c > index 699a238..767f009 100644 > --- a/drivers/pci/probe.c > +++ b/drivers/pci/probe.c > @@ -1889,8 +1889,9 @@ void __weak pcibios_remove_bus(struct pci_bus *bus) > { > } > > -struct pci_bus *pci_create_root_bus(struct device *parent, int bus, > - struct pci_ops *ops, void *sysdata, struct list_head *resources) > +struct pci_bus *pci_create_root_bus(struct device *parent, int domain, > + int bus, struct pci_ops *ops, void *sysdata, > + struct list_head *resources) > { > int error; > struct pci_host_bridge *bridge; > @@ -1920,6 +1921,7 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus, > if (!bridge) > goto err_out; > > + bridge->domain = domain; > bridge->dev.parent = parent; > bridge->dev.release = pci_release_host_bridge_dev; > dev_set_name(&bridge->dev, "pci%04x:%02x", pci_domain_nr(b), bus); > @@ -2057,8 +2059,9 @@ void pci_bus_release_busn_res(struct pci_bus *b) > res, ret ? "can not be" : "is"); > } > > -struct pci_bus *pci_scan_root_bus(struct device *parent, int bus, > - struct pci_ops *ops, void *sysdata, struct list_head *resources) > +struct pci_bus *pci_scan_root_bus(struct device *parent, int domain, > + int bus, struct pci_ops *ops, void *sysdata, > + struct list_head *resources) > { > struct resource_entry *window; > bool found = false; > @@ -2071,7 +2074,8 @@ struct pci_bus *pci_scan_root_bus(struct device *parent, int bus, > break; > } > > - b = pci_create_root_bus(parent, bus, ops, sysdata, resources); > + b = pci_create_root_bus(parent, domain, bus, ops, > + sysdata, resources); > if (!b) > return NULL; > > @@ -2091,8 +2095,8 @@ struct pci_bus *pci_scan_root_bus(struct device *parent, int bus, > } > EXPORT_SYMBOL(pci_scan_root_bus); > > -struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops, > - void *sysdata) > +struct pci_bus *pci_scan_bus(int domain, int bus, > + struct pci_ops *ops, void *sysdata) > { > LIST_HEAD(resources); > struct pci_bus *b; > @@ -2100,7 +2104,8 @@ struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops, > pci_add_resource(&resources, &ioport_resource); > pci_add_resource(&resources, &iomem_resource); > pci_add_resource(&resources, &busn_resource); > - b = pci_create_root_bus(NULL, bus, ops, sysdata, &resources); > + b = pci_create_root_bus(NULL, domain, bus, ops, sysdata, > + &resources); > if (b) { > pci_scan_child_bus(b); > } else { > diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c > index a69e529..830a31e 100644 > --- a/drivers/pci/xen-pcifront.c > +++ b/drivers/pci/xen-pcifront.c > @@ -483,7 +483,7 @@ static int pcifront_scan_root(struct pcifront_device *pdev, > > pci_lock_rescan_remove(); > > - b = pci_scan_root_bus(&pdev->xdev->dev, bus, > + b = pci_scan_root_bus(&pdev->xdev->dev, sd->domain, bus, > &pcifront_bus_ops, sd, &resources); > if (!b) { > dev_err(&pdev->xdev->dev, > diff --git a/include/linux/pci.h b/include/linux/pci.h > index 36effb8..2b575bc 100644 > --- a/include/linux/pci.h > +++ b/include/linux/pci.h > @@ -401,6 +401,7 @@ static inline int pci_channel_offline(struct pci_dev *pdev) > } > > struct pci_host_bridge { > + int domain; > struct device dev; > struct pci_bus *bus; /* root bus */ > struct list_head windows; /* resource_entry */ > @@ -769,14 +770,15 @@ void pcibios_bus_to_resource(struct pci_bus *bus, struct resource *res, > void pcibios_scan_specific_bus(int busn); > struct pci_bus *pci_find_bus(int domain, int busnr); > void pci_bus_add_devices(const struct pci_bus *bus); > -struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops, void *sysdata); > -struct pci_bus *pci_create_root_bus(struct device *parent, int bus, > +struct pci_bus *pci_scan_bus(int domain, int bus, struct pci_ops *ops, > + void *sysdata); > +struct pci_bus *pci_create_root_bus(struct device *parent, int domain, int bus, > struct pci_ops *ops, void *sysdata, > struct list_head *resources); > int pci_bus_insert_busn_res(struct pci_bus *b, int bus, int busmax); > int pci_bus_update_busn_res_end(struct pci_bus *b, int busmax); > void pci_bus_release_busn_res(struct pci_bus *b); > -struct pci_bus *pci_scan_root_bus(struct device *parent, int bus, > +struct pci_bus *pci_scan_root_bus(struct device *parent, int domain, int bus, > struct pci_ops *ops, void *sysdata, > struct list_head *resources); > struct pci_bus *pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, >
On 2015/4/8 16:09, Gregory CLEMENT wrote: > Hi Yijing, > > On 03/04/2015 11:25, Yijing Wang wrote: >> Save domain in pci_host_bridge, so we could get domain >> from pci_host_bridge, and at the end of series, we could >> clean up the arch specific pci_domain_nr(). For arm, >> we pass -1 as the domain number, we would update the >> domain number in core by pci_bus_assign_domain_nr(). >> > For the mvebu part I tested on Armada XP, Armada 375 and Armada 38x > SoCs, and I didn't saw any regression. So you can add my: > > Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Thanks a lot for your test! Thanks! Yijing. >> > >
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c index 82f738e..2b0bce9 100644 --- a/arch/alpha/kernel/pci.c +++ b/arch/alpha/kernel/pci.c @@ -336,8 +336,8 @@ 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, 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..9614e4e 100644 --- a/arch/alpha/kernel/sys_nautilus.c +++ b/arch/alpha/kernel/sys_nautilus.c @@ -206,7 +206,7 @@ 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(hose->index, 0, alpha_mv.pci_ops, hose); if (!bus) return; diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c index ab19b7c..fec2c90 100644 --- a/arch/arm/kernel/bios32.c +++ b/arch/arm/kernel/bios32.c @@ -486,7 +486,7 @@ static void pcibios_init_hw(struct device *parent, struct hw_pci *hw, if (hw->scan) sys->bus = hw->scan(nr, sys); else - sys->bus = pci_scan_root_bus(parent, sys->busnr, + sys->bus = pci_scan_root_bus(parent, -1, sys->busnr, hw->ops, sys, &sys->resources); if (!sys->bus) diff --git a/arch/arm/mach-dove/pcie.c b/arch/arm/mach-dove/pcie.c index 91fe971..a379287 100644 --- a/arch/arm/mach-dove/pcie.c +++ b/arch/arm/mach-dove/pcie.c @@ -160,7 +160,7 @@ dove_pcie_scan_bus(int nr, struct pci_sys_data *sys) return NULL; } - return pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys, + return pci_scan_root_bus(NULL, -1, sys->busnr, &pcie_ops, sys, &sys->resources); } diff --git a/arch/arm/mach-iop13xx/pci.c b/arch/arm/mach-iop13xx/pci.c index 9082b84..bc4ba7e 100644 --- a/arch/arm/mach-iop13xx/pci.c +++ b/arch/arm/mach-iop13xx/pci.c @@ -535,12 +535,12 @@ struct pci_bus *iop13xx_scan_bus(int nr, struct pci_sys_data *sys) while(time_before(jiffies, atux_trhfa_timeout)) udelay(100); - bus = pci_bus_atux = pci_scan_root_bus(NULL, sys->busnr, + bus = pci_bus_atux = pci_scan_root_bus(NULL, -1, sys->busnr, &iop13xx_atux_ops, sys, &sys->resources); break; case IOP13XX_INIT_ATU_ATUE: - bus = pci_bus_atue = pci_scan_root_bus(NULL, sys->busnr, + bus = pci_bus_atue = pci_scan_root_bus(NULL, -1, sys->busnr, &iop13xx_atue_ops, sys, &sys->resources); break; diff --git a/arch/arm/mach-mv78xx0/pcie.c b/arch/arm/mach-mv78xx0/pcie.c index 097ea4c..4010a95 100644 --- a/arch/arm/mach-mv78xx0/pcie.c +++ b/arch/arm/mach-mv78xx0/pcie.c @@ -202,7 +202,7 @@ mv78xx0_pcie_scan_bus(int nr, struct pci_sys_data *sys) return NULL; } - return pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys, + return pci_scan_root_bus(NULL, -1, sys->busnr, &pcie_ops, sys, &sys->resources); } diff --git a/arch/arm/mach-orion5x/pci.c b/arch/arm/mach-orion5x/pci.c index b02f394..83898cc 100644 --- a/arch/arm/mach-orion5x/pci.c +++ b/arch/arm/mach-orion5x/pci.c @@ -558,11 +558,11 @@ int __init orion5x_pci_sys_setup(int nr, struct pci_sys_data *sys) struct pci_bus __init *orion5x_pci_sys_scan_bus(int nr, struct pci_sys_data *sys) { if (nr == 0) - return pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys, + return pci_scan_root_bus(NULL, -1, sys->busnr, &pcie_ops, sys, &sys->resources); if (nr == 1 && !orion5x_pci_disabled) - return pci_scan_root_bus(NULL, sys->busnr, &pci_ops, sys, + return pci_scan_root_bus(NULL, -1, sys->busnr, &pci_ops, sys, &sys->resources); BUG(); diff --git a/arch/frv/mb93090-mb00/pci-vdk.c b/arch/frv/mb93090-mb00/pci-vdk.c index f211839..719fb75 100644 --- a/arch/frv/mb93090-mb00/pci-vdk.c +++ b/arch/frv/mb93090-mb00/pci-vdk.c @@ -384,7 +384,8 @@ int __init pcibios_init(void) printk("PCI: Probing PCI hardware\n"); pci_add_resource(&resources, &pci_ioport_resource); pci_add_resource(&resources, &pci_iomem_resource); - bus = pci_scan_root_bus(NULL, 0, pci_root_ops, NULL, &resources); + bus = pci_scan_root_bus(NULL, 0, 0, pci_root_ops, NULL, + &resources); pcibios_irq_init(); pcibios_fixup_irqs(); diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 48cc657..c642bc8 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, 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..d528814 100644 --- a/arch/ia64/sn/kernel/io_init.c +++ b/arch/ia64/sn/kernel/io_init.c @@ -266,8 +266,8 @@ 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, controller->segment, busnum, + &pci_root_ops, controller, &resources); if (bus == NULL) { kfree(res); kfree(controller); diff --git a/arch/m68k/coldfire/pci.c b/arch/m68k/coldfire/pci.c index 821de92..63c0c2f 100644 --- a/arch/m68k/coldfire/pci.c +++ b/arch/m68k/coldfire/pci.c @@ -312,7 +312,7 @@ static int __init mcf_pci_init(void) set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout(msecs_to_jiffies(200)); - rootbus = pci_scan_bus(0, &mcf_pci_ops, NULL); + rootbus = pci_scan_bus(0, 0, &mcf_pci_ops, NULL); if (!rootbus) return -ENODEV; diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c index ae838ed..d232c8a 100644 --- a/arch/microblaze/pci/pci-common.c +++ b/arch/microblaze/pci/pci-common.c @@ -1350,8 +1350,8 @@ 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, 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 8bb13a4..d6361d5 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, hose->index, next_busno, + hose->pci_ops, hose, &resources); hose->bus = bus; need_domain_info = need_domain_info || hose->index; diff --git a/arch/mn10300/unit-asb2305/pci.c b/arch/mn10300/unit-asb2305/pci.c index 3dfe2d3..a298172 100644 --- a/arch/mn10300/unit-asb2305/pci.c +++ b/arch/mn10300/unit-asb2305/pci.c @@ -372,7 +372,8 @@ static int __init pcibios_init(void) pci_add_resource_offset(&resources, &pci_ioport_resource, io_offset); pci_add_resource_offset(&resources, &pci_iomem_resource, mem_offset); - bus = pci_scan_root_bus(NULL, 0, &pci_direct_ampci, NULL, &resources); + bus = pci_scan_root_bus(NULL, 0, 0, &pci_direct_ampci, + NULL, &resources); if (!bus) return 0; diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 2a525c9..9913f6c 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -1612,8 +1612,8 @@ 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, 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..7c5199b 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -770,8 +770,8 @@ 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, 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 d5462b7..293249a 100644 --- a/arch/sh/drivers/pci/pci.c +++ b/arch/sh/drivers/pci/pci.c @@ -52,8 +52,8 @@ 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, 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/leon_pci.c b/arch/sparc/kernel/leon_pci.c index 4371f72..36d702d 100644 --- a/arch/sparc/kernel/leon_pci.c +++ b/arch/sparc/kernel/leon_pci.c @@ -32,7 +32,7 @@ void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info) info->busn.flags = IORESOURCE_BUS; pci_add_resource(&resources, &info->busn); - root_bus = pci_scan_root_bus(&ofdev->dev, 0, info->ops, info, + root_bus = pci_scan_root_bus(&ofdev->dev, 0, 0, info->ops, info, &resources); if (!root_bus) { pci_free_resource_list(&resources); diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c index 9e267ca..e40e456 100644 --- a/arch/sparc/kernel/pci.c +++ b/arch/sparc/kernel/pci.c @@ -667,8 +667,8 @@ 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, 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/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c index 24384e1..7e86410 100644 --- a/arch/sparc/kernel/pcic.c +++ b/arch/sparc/kernel/pcic.c @@ -390,7 +390,7 @@ static void __init pcic_pbm_scan_bus(struct linux_pcic *pcic) { struct linux_pbm_info *pbm = &pcic->pbm; - pbm->pci_bus = pci_scan_bus(pbm->pci_first_busno, &pcic_ops, pbm); + pbm->pci_bus = pci_scan_bus(0, pbm->pci_first_busno, &pcic_ops, pbm); if (!pbm->pci_bus) return; diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c index 9475a74..6ae0871 100644 --- a/arch/tile/kernel/pci.c +++ b/arch/tile/kernel/pci.c @@ -306,8 +306,8 @@ 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, 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..d47a698 100644 --- a/arch/tile/kernel/pci_gx.c +++ b/arch/tile/kernel/pci_gx.c @@ -881,8 +881,8 @@ 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, controller->index, next_busno, + controller->ops, controller, &resources); controller->root_bus = bus; next_busno = bus->busn_res.end + 1; } diff --git a/arch/unicore32/kernel/pci.c b/arch/unicore32/kernel/pci.c index d45fa5f..ef9be16 100644 --- a/arch/unicore32/kernel/pci.c +++ b/arch/unicore32/kernel/pci.c @@ -258,7 +258,7 @@ static int __init pci_common_init(void) pci_puv3_preinit(); - puv3_bus = pci_scan_bus(0, &pci_puv3_ops, NULL); + puv3_bus = pci_scan_bus(0, 0, &pci_puv3_ops, NULL); if (!puv3_bus) panic("PCI: unable to scan bus!"); diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index 6ac2738..d2655d5 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -425,8 +425,8 @@ 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); + bus = pci_create_root_bus(NULL, 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 95a0ba7..9813266 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -486,7 +486,7 @@ 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, 0, busnum, &pci_root_ops, sd, &resources); if (!bus) { pci_free_resource_list(&resources); kfree(sd); diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c index b848cc3..66da4c3 100644 --- a/arch/xtensa/kernel/pci.c +++ b/arch/xtensa/kernel/pci.c @@ -183,7 +183,7 @@ static int __init pcibios_init(void) pci_ctrl->last_busno = 0xff; INIT_LIST_HEAD(&resources); pci_controller_apertures(pci_ctrl, &resources); - bus = pci_scan_root_bus(NULL, pci_ctrl->first_busno, + bus = pci_scan_root_bus(NULL, 0, pci_ctrl->first_busno, pci_ctrl->ops, pci_ctrl, &resources); if (!bus) continue; diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c index a0580af..f375252 100644 --- a/drivers/parisc/dino.c +++ b/drivers/parisc/dino.c @@ -986,7 +986,7 @@ static int __init dino_probe(struct parisc_device *dev) ** with configuration accessor functions. */ dino_dev->hba.hba_bus = bus = pci_create_root_bus(&dev->dev, - dino_current_bus, &dino_cfg_ops, NULL, &resources); + 0, dino_current_bus, &dino_cfg_ops, NULL, &resources); if (!bus) { printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n", dev_name(&dev->dev), dino_current_bus); diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c index dceb9dd..2949030 100644 --- a/drivers/parisc/lba_pci.c +++ b/drivers/parisc/lba_pci.c @@ -1563,7 +1563,7 @@ lba_driver_probe(struct parisc_device *dev) dev->dev.platform_data = lba_dev; lba_bus = lba_dev->hba.hba_bus = - pci_create_root_bus(&dev->dev, lba_dev->hba.bus_num.start, + pci_create_root_bus(&dev->dev, 0, lba_dev->hba.bus_num.start, cfg_ops, NULL, &resources); if (!lba_bus) { pci_free_resource_list(&resources); diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c index 1309cfb..0cfc494 100644 --- a/drivers/pci/host/pci-mvebu.c +++ b/drivers/pci/host/pci-mvebu.c @@ -755,7 +755,7 @@ static struct pci_bus *mvebu_pcie_scan_bus(int nr, struct pci_sys_data *sys) struct mvebu_pcie *pcie = sys_to_pcie(sys); struct pci_bus *bus; - bus = pci_create_root_bus(&pcie->pdev->dev, sys->busnr, + bus = pci_create_root_bus(&pcie->pdev->dev, -1, sys->busnr, &mvebu_pcie_ops, sys, &sys->resources); if (!bus) return NULL; diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c index 00e9272..94e9362 100644 --- a/drivers/pci/host/pci-tegra.c +++ b/drivers/pci/host/pci-tegra.c @@ -635,8 +635,8 @@ static struct pci_bus *tegra_pcie_scan_bus(int nr, struct pci_sys_data *sys) struct tegra_pcie *pcie = sys_to_pcie(sys); struct pci_bus *bus; - bus = pci_create_root_bus(pcie->dev, sys->busnr, &tegra_pcie_ops, sys, - &sys->resources); + bus = pci_create_root_bus(pcie->dev, -1, sys->busnr, &tegra_pcie_ops, + sys, &sys->resources); if (!bus) return NULL; diff --git a/drivers/pci/host/pci-versatile.c b/drivers/pci/host/pci-versatile.c index e3a2450..58a22a9 100644 --- a/drivers/pci/host/pci-versatile.c +++ b/drivers/pci/host/pci-versatile.c @@ -208,7 +208,8 @@ static int versatile_pci_probe(struct platform_device *pdev) pci_add_flags(PCI_ENABLE_PROC_DOMAINS); pci_add_flags(PCI_REASSIGN_ALL_BUS | PCI_REASSIGN_ALL_RSRC); - bus = pci_scan_root_bus(&pdev->dev, 0, &pci_versatile_ops, &sys, &pci_res); + bus = pci_scan_root_bus(&pdev->dev, -1, 0, &pci_versatile_ops, + &sys, &pci_res); if (!bus) return -ENOMEM; diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c index aab5547..078e853 100644 --- a/drivers/pci/host/pci-xgene.c +++ b/drivers/pci/host/pci-xgene.c @@ -499,7 +499,7 @@ static int xgene_pcie_probe_bridge(struct platform_device *pdev) if (ret) return ret; - bus = pci_create_root_bus(&pdev->dev, 0, + bus = pci_create_root_bus(&pdev->dev, -1, 0, &xgene_pcie_ops, port, &res); if (!bus) return -ENOMEM; diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c index 1f4ea6f..93778b9 100644 --- a/drivers/pci/host/pcie-designware.c +++ b/drivers/pci/host/pcie-designware.c @@ -728,7 +728,7 @@ static struct pci_bus *dw_pcie_scan_bus(int nr, struct pci_sys_data *sys) struct pcie_port *pp = sys_to_pcie(sys); pp->root_bus_nr = sys->busnr; - bus = pci_create_root_bus(pp->dev, sys->busnr, + bus = pci_create_root_bus(pp->dev, -1, sys->busnr, &dw_pcie_ops, sys, &sys->resources); if (!bus) return NULL; diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c index f1a06a0..b5a72a5 100644 --- a/drivers/pci/host/pcie-xilinx.c +++ b/drivers/pci/host/pcie-xilinx.c @@ -647,7 +647,7 @@ static struct pci_bus *xilinx_pcie_scan_bus(int nr, struct pci_sys_data *sys) struct pci_bus *bus; port->root_busno = sys->busnr; - bus = pci_scan_root_bus(port->dev, sys->busnr, &xilinx_pcie_ops, + bus = pci_scan_root_bus(port->dev, -1, sys->busnr, &xilinx_pcie_ops, sys, &sys->resources); return bus; diff --git a/drivers/pci/hotplug/ibmphp_core.c b/drivers/pci/hotplug/ibmphp_core.c index 1530247..db6240e 100644 --- a/drivers/pci/hotplug/ibmphp_core.c +++ b/drivers/pci/hotplug/ibmphp_core.c @@ -765,7 +765,7 @@ static u8 bus_structure_fixup(u8 busno) (l != 0x0000) && (l != 0xffff)) { debug("%s - Inside bus_structure_fixup()\n", __func__); - b = pci_scan_bus(busno, ibmphp_pci_bus->ops, NULL); + b = pci_scan_bus(0, busno, ibmphp_pci_bus->ops, NULL); if (!b) continue; diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 699a238..767f009 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -1889,8 +1889,9 @@ void __weak pcibios_remove_bus(struct pci_bus *bus) { } -struct pci_bus *pci_create_root_bus(struct device *parent, int bus, - struct pci_ops *ops, void *sysdata, struct list_head *resources) +struct pci_bus *pci_create_root_bus(struct device *parent, int domain, + int bus, struct pci_ops *ops, void *sysdata, + struct list_head *resources) { int error; struct pci_host_bridge *bridge; @@ -1920,6 +1921,7 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus, if (!bridge) goto err_out; + bridge->domain = domain; bridge->dev.parent = parent; bridge->dev.release = pci_release_host_bridge_dev; dev_set_name(&bridge->dev, "pci%04x:%02x", pci_domain_nr(b), bus); @@ -2057,8 +2059,9 @@ void pci_bus_release_busn_res(struct pci_bus *b) res, ret ? "can not be" : "is"); } -struct pci_bus *pci_scan_root_bus(struct device *parent, int bus, - struct pci_ops *ops, void *sysdata, struct list_head *resources) +struct pci_bus *pci_scan_root_bus(struct device *parent, int domain, + int bus, struct pci_ops *ops, void *sysdata, + struct list_head *resources) { struct resource_entry *window; bool found = false; @@ -2071,7 +2074,8 @@ struct pci_bus *pci_scan_root_bus(struct device *parent, int bus, break; } - b = pci_create_root_bus(parent, bus, ops, sysdata, resources); + b = pci_create_root_bus(parent, domain, bus, ops, + sysdata, resources); if (!b) return NULL; @@ -2091,8 +2095,8 @@ struct pci_bus *pci_scan_root_bus(struct device *parent, int bus, } EXPORT_SYMBOL(pci_scan_root_bus); -struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops, - void *sysdata) +struct pci_bus *pci_scan_bus(int domain, int bus, + struct pci_ops *ops, void *sysdata) { LIST_HEAD(resources); struct pci_bus *b; @@ -2100,7 +2104,8 @@ struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops, pci_add_resource(&resources, &ioport_resource); pci_add_resource(&resources, &iomem_resource); pci_add_resource(&resources, &busn_resource); - b = pci_create_root_bus(NULL, bus, ops, sysdata, &resources); + b = pci_create_root_bus(NULL, domain, bus, ops, sysdata, + &resources); if (b) { pci_scan_child_bus(b); } else { diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c index a69e529..830a31e 100644 --- a/drivers/pci/xen-pcifront.c +++ b/drivers/pci/xen-pcifront.c @@ -483,7 +483,7 @@ static int pcifront_scan_root(struct pcifront_device *pdev, pci_lock_rescan_remove(); - b = pci_scan_root_bus(&pdev->xdev->dev, bus, + b = pci_scan_root_bus(&pdev->xdev->dev, sd->domain, bus, &pcifront_bus_ops, sd, &resources); if (!b) { dev_err(&pdev->xdev->dev, diff --git a/include/linux/pci.h b/include/linux/pci.h index 36effb8..2b575bc 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -401,6 +401,7 @@ static inline int pci_channel_offline(struct pci_dev *pdev) } struct pci_host_bridge { + int domain; struct device dev; struct pci_bus *bus; /* root bus */ struct list_head windows; /* resource_entry */ @@ -769,14 +770,15 @@ void pcibios_bus_to_resource(struct pci_bus *bus, struct resource *res, void pcibios_scan_specific_bus(int busn); struct pci_bus *pci_find_bus(int domain, int busnr); void pci_bus_add_devices(const struct pci_bus *bus); -struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops, void *sysdata); -struct pci_bus *pci_create_root_bus(struct device *parent, int bus, +struct pci_bus *pci_scan_bus(int domain, int bus, struct pci_ops *ops, + void *sysdata); +struct pci_bus *pci_create_root_bus(struct device *parent, int domain, int bus, struct pci_ops *ops, void *sysdata, struct list_head *resources); int pci_bus_insert_busn_res(struct pci_bus *b, int bus, int busmax); int pci_bus_update_busn_res_end(struct pci_bus *b, int busmax); void pci_bus_release_busn_res(struct pci_bus *b); -struct pci_bus *pci_scan_root_bus(struct device *parent, int bus, +struct pci_bus *pci_scan_root_bus(struct device *parent, int domain, int bus, struct pci_ops *ops, void *sysdata, struct list_head *resources); struct pci_bus *pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev,
Save domain in pci_host_bridge, so we could get domain from pci_host_bridge, and at the end of series, we could clean up the arch specific pci_domain_nr(). For arm, we pass -1 as the domain number, we would update the domain number in core by pci_bus_assign_domain_nr(). Signed-off-by: Yijing Wang <wangyijing@huawei.com> --- arch/alpha/kernel/pci.c | 4 ++-- arch/alpha/kernel/sys_nautilus.c | 2 +- arch/arm/kernel/bios32.c | 2 +- arch/arm/mach-dove/pcie.c | 2 +- arch/arm/mach-iop13xx/pci.c | 4 ++-- arch/arm/mach-mv78xx0/pcie.c | 2 +- arch/arm/mach-orion5x/pci.c | 4 ++-- arch/frv/mb93090-mb00/pci-vdk.c | 3 ++- arch/ia64/pci/pci.c | 4 ++-- arch/ia64/sn/kernel/io_init.c | 4 ++-- arch/m68k/coldfire/pci.c | 2 +- arch/microblaze/pci/pci-common.c | 4 ++-- arch/mips/pci/pci.c | 4 ++-- arch/mn10300/unit-asb2305/pci.c | 3 ++- arch/powerpc/kernel/pci-common.c | 4 ++-- arch/s390/pci/pci.c | 4 ++-- arch/sh/drivers/pci/pci.c | 4 ++-- arch/sparc/kernel/leon_pci.c | 2 +- arch/sparc/kernel/pci.c | 4 ++-- arch/sparc/kernel/pcic.c | 2 +- arch/tile/kernel/pci.c | 4 ++-- arch/tile/kernel/pci_gx.c | 4 ++-- arch/unicore32/kernel/pci.c | 2 +- arch/x86/pci/acpi.c | 4 ++-- arch/x86/pci/common.c | 2 +- arch/xtensa/kernel/pci.c | 2 +- drivers/parisc/dino.c | 2 +- drivers/parisc/lba_pci.c | 2 +- drivers/pci/host/pci-mvebu.c | 2 +- drivers/pci/host/pci-tegra.c | 4 ++-- drivers/pci/host/pci-versatile.c | 3 ++- drivers/pci/host/pci-xgene.c | 2 +- drivers/pci/host/pcie-designware.c | 2 +- drivers/pci/host/pcie-xilinx.c | 2 +- drivers/pci/hotplug/ibmphp_core.c | 2 +- drivers/pci/probe.c | 21 +++++++++++++-------- drivers/pci/xen-pcifront.c | 2 +- include/linux/pci.h | 8 +++++--- 38 files changed, 72 insertions(+), 62 deletions(-)