diff options
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/pci_64.c | 68 | ||||
| -rw-r--r-- | arch/powerpc/kernel/rtas_pci.c | 68 |
2 files changed, 70 insertions, 66 deletions
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index d7de3ec0bf8..5a5b2468508 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -187,7 +187,7 @@ static DEFINE_SPINLOCK(hose_spinlock); /* * pci_controller(phb) initialized common variables. */ -void __devinit pci_setup_pci_controller(struct pci_controller *hose) +static void __devinit pci_setup_pci_controller(struct pci_controller *hose) { memset(hose, 0, sizeof(struct pci_controller)); @@ -197,6 +197,65 @@ void __devinit pci_setup_pci_controller(struct pci_controller *hose) spin_unlock(&hose_spinlock); } +static void add_linux_pci_domain(struct device_node *dev, + struct pci_controller *phb) +{ + struct property *of_prop; + unsigned int size; + + of_prop = (struct property *) + get_property(dev, "linux,pci-domain", &size); + if (of_prop != NULL) + return; + WARN_ON(of_prop && size < sizeof(int)); + if (of_prop && size < sizeof(int)) + of_prop = NULL; + size = sizeof(struct property) + sizeof(int); + if (of_prop == NULL) { + if (mem_init_done) + of_prop = kmalloc(size, GFP_KERNEL); + else + of_prop = alloc_bootmem(size); + } + memset(of_prop, 0, sizeof(struct property)); + of_prop->name = "linux,pci-domain"; + of_prop->length = sizeof(int); + of_prop->value = (unsigned char *)&of_prop[1]; + *((int *)of_prop->value) = phb->global_number; + prom_add_property(dev, of_prop); +} + +struct pci_controller * pcibios_alloc_controller(struct device_node *dev) +{ + struct pci_controller *phb; + + if (mem_init_done) + phb = kmalloc(sizeof(struct pci_controller), GFP_KERNEL); + else + phb = alloc_bootmem(sizeof (struct pci_controller)); + if (phb == NULL) + return NULL; + pci_setup_pci_controller(phb); + phb->arch_data = dev; + phb->is_dynamic = mem_init_done; + if (dev) + add_linux_pci_domain(dev, phb); + return phb; +} + +void pcibios_free_controller(struct pci_controller *phb) +{ + if (phb->arch_data) { + struct device_node *np = phb->arch_data; + int *domain = (int *)get_property(np, + "linux,pci-domain", NULL); + if (domain) + *domain = -1; + } + if (phb->is_dynamic) + kfree(phb); +} + static void __init pcibios_claim_one_bus(struct pci_bus *b) { struct pci_dev *dev; @@ -907,9 +966,10 @@ void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose, * (size depending on dev->n_addr_cells) * cells 4+5 or 5+6: the size of the range */ - rlen = 0; - hose->io_base_phys = 0; ranges = (unsigned int *) get_property(dev, "ranges", &rlen); + if (ranges == NULL) + return; + hose->io_base_phys = 0; while ((rlen -= np * sizeof(unsigned int)) >= 0) { res = NULL; pci_space = ranges[0]; @@ -1107,6 +1167,8 @@ int remap_bus_range(struct pci_bus *bus) if (get_bus_io_range(bus, &start_phys, &start_virt, &size)) return 1; + if (start_phys == 0) + return 1; printk("mapping IO %lx -> %lx, size: %lx\n", start_phys, start_virt, size); if (__ioremap_explicit(start_phys, start_virt, size, _PAGE_NO_CACHE | _PAGE_GUARDED)) diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c index 0e5a8e11665..60dec2401c2 100644 --- a/arch/powerpc/kernel/rtas_pci.c +++ b/arch/powerpc/kernel/rtas_pci.c @@ -304,75 +304,18 @@ static int __devinit setup_phb(struct device_node *dev, struct pci_controller *phb, unsigned int addr_size_words) { - pci_setup_pci_controller(phb); - if (is_python(dev)) python_countermeasures(dev, addr_size_words); if (phb_set_bus_ranges(dev, phb)) return 1; - phb->arch_data = dev; phb->ops = &rtas_pci_ops; phb->buid = get_phb_buid(dev); return 0; } -static void __devinit add_linux_pci_domain(struct device_node *dev, - struct pci_controller *phb, - struct property *of_prop) -{ - memset(of_prop, 0, sizeof(struct property)); - of_prop->name = "linux,pci-domain"; - of_prop->length = sizeof(phb->global_number); - of_prop->value = (unsigned char *)&of_prop[1]; - memcpy(of_prop->value, &phb->global_number, sizeof(phb->global_number)); - prom_add_property(dev, of_prop); -} - -static struct pci_controller * __init alloc_phb(struct device_node *dev, - unsigned int addr_size_words) -{ - struct pci_controller *phb; - struct property *of_prop; - - phb = alloc_bootmem(sizeof(struct pci_controller)); - if (phb == NULL) - return NULL; - - of_prop = alloc_bootmem(sizeof(struct property) + - sizeof(phb->global_number)); - if (!of_prop) - return NULL; - - if (setup_phb(dev, phb, addr_size_words)) - return NULL; - - add_linux_pci_domain(dev, phb, of_prop); - - return phb; -} - -static struct pci_controller * __devinit alloc_phb_dynamic(struct device_node *dev, unsigned int addr_size_words) -{ - struct pci_controller *phb; - - phb = (struct pci_controller *)kmalloc(sizeof(struct pci_controller), - GFP_KERNEL); - if (phb == NULL) - return NULL; - - if (setup_phb(dev, phb, addr_size_words)) - return NULL; - - phb->is_dynamic = 1; - - /* TODO: linux,pci-domain? */ - - return phb; -} - unsigned long __init find_and_init_phbs(void) { struct device_node *node; @@ -397,10 +340,10 @@ unsigned long __init find_and_init_phbs(void) if (node->type == NULL || strcmp(node->type, "pci") != 0) continue; - phb = alloc_phb(node, root_size_cells); + phb = pcibios_alloc_controller(node); if (!phb) continue; - + setup_phb(node, phb, root_size_cells); pci_process_bridge_OF_ranges(phb, node, 0); pci_setup_phb_io(phb, index == 0); #ifdef CONFIG_PPC_PSERIES @@ -446,10 +389,10 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn) root_size_cells = prom_n_size_cells(root); primary = list_empty(&hose_list); - phb = alloc_phb_dynamic(dn, root_size_cells); + phb = pcibios_alloc_controller(dn); if (!phb) return NULL; - + setup_phb(dn, phb, root_size_cells); pci_process_bridge_OF_ranges(phb, dn, primary); pci_setup_phb_io_dynamic(phb, primary); @@ -505,8 +448,7 @@ int pcibios_remove_root_bus(struct pci_controller *phb) } list_del(&phb->list_node); - if (phb->is_dynamic) - kfree(phb); + pcibios_free_controller(phb); return 0; } |