From b918c62e086b2130a7bae44110ca516ef10bfe5a Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Thu, 17 May 2012 18:51:11 -0700 Subject: PCI: replace struct pci_bus secondary/subordinate with busn_res Replace the struct pci_bus secondary/subordinate members with the struct resource busn_res. Later we'll build a resource tree of these bus numbers. [bhelgaas: changelog] Signed-off-by: Yinghai Lu Signed-off-by: Bjorn Helgaas --- arch/powerpc/kernel/pci-common.c | 6 +++--- arch/powerpc/kernel/pci_64.c | 2 +- arch/powerpc/kernel/pci_of_scan.c | 2 +- arch/powerpc/platforms/powernv/pci-ioda.c | 8 ++++---- arch/powerpc/platforms/pseries/pci_dlpar.c | 2 +- 5 files changed, 10 insertions(+), 10 deletions(-) (limited to 'arch/powerpc') diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 8e78e93c818..3532b535698 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -1646,7 +1646,7 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose) pci_free_resource_list(&resources); return; } - bus->secondary = hose->first_busno; + bus->busn_res.start = hose->first_busno; hose->bus = bus; /* Get probe mode and perform scan */ @@ -1655,12 +1655,12 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose) mode = ppc_md.pci_probe_mode(bus); pr_debug(" probe mode: %d\n", mode); if (mode == PCI_PROBE_DEVTREE) { - bus->subordinate = hose->last_busno; + bus->busn_res.end = hose->last_busno; of_scan_bus(node, bus); } if (mode == PCI_PROBE_NORMAL) - hose->last_busno = bus->subordinate = pci_scan_child_bus(bus); + hose->last_busno = bus->busn_res.end = pci_scan_child_bus(bus); /* Platform gets a chance to do some global fixups before * we proceed to resource allocation diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 94a54f61d34..4ff190ff24a 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -236,7 +236,7 @@ long sys_pciconfig_iobase(long which, unsigned long in_bus, for (ln = pci_root_buses.next; ln != &pci_root_buses; ln = ln->next) { bus = pci_bus_b(ln); - if (in_bus >= bus->number && in_bus <= bus->subordinate) + if (in_bus >= bus->number && in_bus <= bus->busn_res.end) break; bus = NULL; } diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c index 89dde171a6f..a36281aa98f 100644 --- a/arch/powerpc/kernel/pci_of_scan.c +++ b/arch/powerpc/kernel/pci_of_scan.c @@ -240,7 +240,7 @@ void __devinit of_scan_pci_bridge(struct pci_dev *dev) } bus->primary = dev->bus->number; - bus->subordinate = busrange[1]; + bus->busn_res.end = busrange[1]; bus->bridge_ctl = 0; /* parse ranges property */ diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index fbdd74dac3a..9cda6a1ad0c 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -589,7 +589,7 @@ static int __devinit pnv_ioda_configure_pe(struct pnv_phb *phb, dcomp = OPAL_IGNORE_RID_DEVICE_NUMBER; fcomp = OPAL_IGNORE_RID_FUNCTION_NUMBER; parent = pe->pbus->self; - count = pe->pbus->subordinate - pe->pbus->secondary + 1; + count = pe->pbus->busn_res.end - pe->pbus->busn_res.start + 1; switch(count) { case 1: bcomp = OpalPciBusAll; break; case 2: bcomp = OpalPciBus7Bits; break; @@ -816,11 +816,11 @@ static void __devinit pnv_ioda_setup_bus_PE(struct pci_dev *dev, pe->pdev = NULL; pe->tce32_seg = -1; pe->mve_number = -1; - pe->rid = bus->secondary << 8; + pe->rid = bus->busn_res.start << 8; pe->dma_weight = 0; - pe_info(pe, "Secondary busses %d..%d associated with PE\n", - bus->secondary, bus->subordinate); + pe_info(pe, "Secondary busses %pR associated with PE\n", + &bus->busn_res); if (pnv_ioda_configure_pe(phb, pe)) { /* XXX What do we do here ? */ diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c index 8b7bafa489c..3ccebc83dc0 100644 --- a/arch/powerpc/platforms/pseries/pci_dlpar.c +++ b/arch/powerpc/platforms/pseries/pci_dlpar.c @@ -121,7 +121,7 @@ void pcibios_add_pci_devices(struct pci_bus * bus) if (!num) return; pcibios_setup_bus_devices(bus); - max = bus->secondary; + max = bus->busn_res.start; for (pass=0; pass < 2; pass++) list_for_each_entry(dev, &bus->devices, bus_list) { if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE || -- cgit v1.2.3-70-g09d2 From be8e60d8bed118b19bd7038ac2f6ac6688d072d9 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Thu, 17 May 2012 18:51:12 -0700 Subject: powerpc/PCI: register busn_res for root buses Add the host bridge bus number aperture to the resource list. Like the MMIO and I/O port apertures, this is used when assigning resources to hot-added devices or in the case of conflicts. [bhelgaas: changelog] CC: Paul Mackerras CC: linuxppc-dev@lists.ozlabs.org CC: Benjamin Herrenschmidt Signed-off-by: Yinghai Lu Signed-off-by: Bjorn Helgaas --- arch/powerpc/include/asm/pci-bridge.h | 1 + arch/powerpc/kernel/pci-common.c | 17 +++++++++++------ arch/powerpc/kernel/pci_of_scan.c | 2 +- 3 files changed, 13 insertions(+), 7 deletions(-) (limited to 'arch/powerpc') diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index ac39e6a3b25..8cccbee6151 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -30,6 +30,7 @@ struct pci_controller { int first_busno; int last_busno; int self_busno; + struct resource busn; void __iomem *io_base_virt; #ifdef CONFIG_PPC64 diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 3532b535698..7320f368552 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -1637,6 +1637,11 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose) /* Wire up PHB bus resources */ pcibios_setup_phb_resources(hose, &resources); + hose->busn.start = hose->first_busno; + hose->busn.end = hose->last_busno; + hose->busn.flags = IORESOURCE_BUS; + 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); @@ -1646,7 +1651,6 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose) pci_free_resource_list(&resources); return; } - bus->busn_res.start = hose->first_busno; hose->bus = bus; /* Get probe mode and perform scan */ @@ -1654,13 +1658,14 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose) if (node && ppc_md.pci_probe_mode) mode = ppc_md.pci_probe_mode(bus); pr_debug(" probe mode: %d\n", mode); - if (mode == PCI_PROBE_DEVTREE) { - bus->busn_res.end = hose->last_busno; + if (mode == PCI_PROBE_DEVTREE) of_scan_bus(node, bus); - } - if (mode == PCI_PROBE_NORMAL) - hose->last_busno = bus->busn_res.end = pci_scan_child_bus(bus); + if (mode == PCI_PROBE_NORMAL) { + pci_bus_update_busn_res_end(bus, 255); + hose->last_busno = pci_scan_child_bus(bus); + pci_bus_update_busn_res_end(bus, hose->last_busno); + } /* Platform gets a chance to do some global fixups before * we proceed to resource allocation diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c index a36281aa98f..ae5ea5e04d6 100644 --- a/arch/powerpc/kernel/pci_of_scan.c +++ b/arch/powerpc/kernel/pci_of_scan.c @@ -240,7 +240,7 @@ void __devinit of_scan_pci_bridge(struct pci_dev *dev) } bus->primary = dev->bus->number; - bus->busn_res.end = busrange[1]; + pci_bus_insert_busn_res(bus, busrange[0], busrange[1]); bus->bridge_ctl = 0; /* parse ranges property */ -- cgit v1.2.3-70-g09d2 From 492bf4f25a1c8e87a6abb0e2edaa532b7fd43b29 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Sun, 3 Jun 2012 20:48:24 +0200 Subject: powerpc/PCI: move fixup hooks from __init to __devinit The fixups are executed once the pci-device is found which is during boot process so __init seems fine as long as the platform does not support hotplug. However it is possible to remove the PCI bus at run time and have it rediscovered again via "echo 1 > /sys/bus/pci/rescan" and this will call the fixups again. Cc: Kumar Gala Cc: Paul Mackerras Acked-by: Benjamin Herrenschmidt Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Bjorn Helgaas --- arch/powerpc/platforms/85xx/tqm85xx.c | 2 +- arch/powerpc/platforms/86xx/gef_ppc9a.c | 2 +- arch/powerpc/platforms/86xx/gef_sbc310.c | 2 +- arch/powerpc/platforms/86xx/gef_sbc610.c | 2 +- arch/powerpc/sysdev/fsl_pci.c | 2 +- arch/powerpc/sysdev/mv64x60_pci.c | 2 +- 6 files changed, 6 insertions(+), 6 deletions(-) (limited to 'arch/powerpc') diff --git a/arch/powerpc/platforms/85xx/tqm85xx.c b/arch/powerpc/platforms/85xx/tqm85xx.c index 4d786c25d3e..3e70a2035e5 100644 --- a/arch/powerpc/platforms/85xx/tqm85xx.c +++ b/arch/powerpc/platforms/85xx/tqm85xx.c @@ -102,7 +102,7 @@ static void tqm85xx_show_cpuinfo(struct seq_file *m) seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); } -static void __init tqm85xx_ti1520_fixup(struct pci_dev *pdev) +static void __devinit tqm85xx_ti1520_fixup(struct pci_dev *pdev) { unsigned int val; diff --git a/arch/powerpc/platforms/86xx/gef_ppc9a.c b/arch/powerpc/platforms/86xx/gef_ppc9a.c index 1fca663f1b2..563aafa8629 100644 --- a/arch/powerpc/platforms/86xx/gef_ppc9a.c +++ b/arch/powerpc/platforms/86xx/gef_ppc9a.c @@ -164,7 +164,7 @@ static void gef_ppc9a_show_cpuinfo(struct seq_file *m) gef_ppc9a_get_vme_is_syscon() ? "yes" : "no"); } -static void __init gef_ppc9a_nec_fixup(struct pci_dev *pdev) +static void __devinit gef_ppc9a_nec_fixup(struct pci_dev *pdev) { unsigned int val; diff --git a/arch/powerpc/platforms/86xx/gef_sbc310.c b/arch/powerpc/platforms/86xx/gef_sbc310.c index 14e0e576bcb..cc6a91ae088 100644 --- a/arch/powerpc/platforms/86xx/gef_sbc310.c +++ b/arch/powerpc/platforms/86xx/gef_sbc310.c @@ -152,7 +152,7 @@ static void gef_sbc310_show_cpuinfo(struct seq_file *m) } -static void __init gef_sbc310_nec_fixup(struct pci_dev *pdev) +static void __devinit gef_sbc310_nec_fixup(struct pci_dev *pdev) { unsigned int val; diff --git a/arch/powerpc/platforms/86xx/gef_sbc610.c b/arch/powerpc/platforms/86xx/gef_sbc610.c index 1638f43599f..aead6b337f4 100644 --- a/arch/powerpc/platforms/86xx/gef_sbc610.c +++ b/arch/powerpc/platforms/86xx/gef_sbc610.c @@ -141,7 +141,7 @@ static void gef_sbc610_show_cpuinfo(struct seq_file *m) seq_printf(m, "SVR\t\t: 0x%x\n", svid); } -static void __init gef_sbc610_nec_fixup(struct pci_dev *pdev) +static void __devinit gef_sbc610_nec_fixup(struct pci_dev *pdev) { unsigned int val; diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c index 6073288fed2..edbf79465d5 100644 --- a/arch/powerpc/sysdev/fsl_pci.c +++ b/arch/powerpc/sysdev/fsl_pci.c @@ -36,7 +36,7 @@ static int fsl_pcie_bus_fixup, is_mpc83xx_pci; -static void __init quirk_fsl_pcie_header(struct pci_dev *dev) +static void __devinit quirk_fsl_pcie_header(struct pci_dev *dev) { u8 progif; diff --git a/arch/powerpc/sysdev/mv64x60_pci.c b/arch/powerpc/sysdev/mv64x60_pci.c index b0037cefaad..364b14d4754 100644 --- a/arch/powerpc/sysdev/mv64x60_pci.c +++ b/arch/powerpc/sysdev/mv64x60_pci.c @@ -104,7 +104,7 @@ subsys_initcall(mv64x60_sysfs_init); #endif /* CONFIG_SYSFS */ -static void __init mv64x60_pci_fixup_early(struct pci_dev *dev) +static void __devinit mv64x60_pci_fixup_early(struct pci_dev *dev) { /* * Set the host bridge hdr_type to an invalid value so that -- cgit v1.2.3-70-g09d2 From 67ea194ad312b8916917480faebf76fa5d9454a2 Mon Sep 17 00:00:00 2001 From: Myron Stowe Date: Mon, 25 Jun 2012 21:31:51 -0600 Subject: powerpc/PCI: factor out pcibios_setup() The PCI core provides a generic pcibios_setup() routine. Drop this architecture-specific version in favor of that. Acked-by: Benjamin Herrenschmidt Signed-off-by: Myron Stowe Signed-off-by: Bjorn Helgaas --- arch/powerpc/kernel/pci-common.c | 5 ----- 1 file changed, 5 deletions(-) (limited to 'arch/powerpc') diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 8e78e93c818..bf2306bfa75 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -200,11 +200,6 @@ int pcibios_add_platform_entries(struct pci_dev *pdev) return device_create_file(&pdev->dev, &dev_attr_devspec); } -char __devinit *pcibios_setup(char *str) -{ - return str; -} - /* * Reads the interrupt pin to determine if interrupt is use by card. * If the interrupt is used, then gets the interrupt line from the -- cgit v1.2.3-70-g09d2