X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fpowerpc%2Fkernel%2Fpci_64.c;h=01f18c683407ac1cf8d0ec680d086b23dc63e5b9;hb=refs%2Fheads%2Fvserver;hp=4c4449be81ce4395ca253acda7e66cbac3993550;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 4c4449be8..01f18c683 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -13,7 +13,6 @@ #undef DEBUG -#include #include #include #include @@ -22,15 +21,16 @@ #include #include #include +#include #include #include #include #include #include -#include #include #include +#include #ifdef DEBUG #include @@ -42,19 +42,9 @@ unsigned long pci_probe_only = 1; int pci_assign_all_buses = 0; -/* - * legal IO pages under MAX_ISA_PORT. This is to ensure we don't touch - * devices we don't have access to. - */ -unsigned long io_page_mask; - -EXPORT_SYMBOL(io_page_mask); - -#ifdef CONFIG_PPC_MULTIPLATFORM static void fixup_resource(struct resource *res, struct pci_dev *dev); static void do_bus_setup(struct pci_bus *bus); static void phbs_remap_io(void); -#endif /* pci_io_base -- the base address from which io bars are offsets. * This is the lowest I/O base address (so bar values are always positive), @@ -71,7 +61,7 @@ void iSeries_pcibios_init(void); LIST_HEAD(hose_list); -struct dma_mapping_ops pci_dma_ops; +struct dma_mapping_ops *pci_dma_ops; EXPORT_SYMBOL(pci_dma_ops); int global_phb_number; /* Global phb counter */ @@ -146,11 +136,11 @@ EXPORT_SYMBOL(pcibios_bus_to_resource); * which might have be mirrored at 0x0100-0x03ff.. */ void pcibios_align_resource(void *data, struct resource *res, - unsigned long size, unsigned long align) + resource_size_t size, resource_size_t align) { struct pci_dev *dev = data; struct pci_controller *hose = pci_bus_to_host(dev->bus); - unsigned long start = res->start; + resource_size_t start = res->start; unsigned long alignto; if (res->flags & IORESOURCE_IO) { @@ -194,34 +184,6 @@ static 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; @@ -235,25 +197,27 @@ struct pci_controller * pcibios_alloc_controller(struct device_node *dev) pci_setup_pci_controller(phb); phb->arch_data = dev; phb->is_dynamic = mem_init_done; - if (dev) - add_linux_pci_domain(dev, phb); + if (dev) { + int nid = of_node_to_nid(dev); + + if (nid < 0 || !node_online(nid)) + nid = -1; + + PHB_SET_NODE(phb, nid); + } 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; - } + spin_lock(&hose_spinlock); + list_del(&phb->list_node); + spin_unlock(&hose_spinlock); + if (phb->is_dynamic) kfree(phb); } -#ifndef CONFIG_PPC_ISERIES void __devinit pcibios_claim_one_bus(struct pci_bus *b) { struct pci_dev *dev; @@ -282,18 +246,19 @@ static void __init pcibios_claim_of_setup(void) { struct pci_bus *b; + if (firmware_has_feature(FW_FEATURE_ISERIES)) + return; + list_for_each_entry(b, &pci_root_buses, node) pcibios_claim_one_bus(b); } -#endif -#ifdef CONFIG_PPC_MULTIPLATFORM static u32 get_int_prop(struct device_node *np, const char *name, u32 def) { - u32 *prop; + const u32 *prop; int len; - prop = (u32 *) get_property(np, name, &len); + prop = get_property(np, name, &len); if (prop && len >= 4) return *prop; return def; @@ -322,10 +287,11 @@ static void pci_parse_of_addrs(struct device_node *node, struct pci_dev *dev) u64 base, size; unsigned int flags; struct resource *res; - u32 *addrs, i; + const u32 *addrs; + u32 i; int proplen; - addrs = (u32 *) get_property(node, "assigned-addresses", &proplen); + addrs = get_property(node, "assigned-addresses", &proplen); if (!addrs) return; DBG(" parse addresses (%d bytes) @ %p\n", proplen, addrs); @@ -364,7 +330,7 @@ struct pci_dev *of_create_pci_dev(struct device_node *node, struct pci_dev *dev; const char *type; - dev = kmalloc(sizeof(struct pci_dev), GFP_KERNEL); + dev = kzalloc(sizeof(struct pci_dev), GFP_KERNEL); if (!dev) return NULL; type = get_property(node, "device_type", NULL); @@ -373,7 +339,6 @@ struct pci_dev *of_create_pci_dev(struct device_node *node, DBG(" create device, devfn: %x, type: %s\n", devfn, type); - memset(dev, 0, sizeof(struct pci_dev)); dev->bus = bus; dev->sysdata = node; dev->dev.parent = bus->bridge; @@ -395,8 +360,9 @@ struct pci_dev *of_create_pci_dev(struct device_node *node, DBG(" class: 0x%x\n", dev->class); dev->current_state = 4; /* unknown power state */ + dev->error_state = pci_channel_io_normal; - if (!strcmp(type, "pci")) { + if (!strcmp(type, "pci") || !strcmp(type, "pciex")) { /* a PCI-PCI bridge */ dev->hdr_type = PCI_HEADER_TYPE_BRIDGE; dev->rom_base_reg = PCI_ROM_ADDRESS1; @@ -405,12 +371,8 @@ struct pci_dev *of_create_pci_dev(struct device_node *node, } else { dev->hdr_type = PCI_HEADER_TYPE_NORMAL; dev->rom_base_reg = PCI_ROM_ADDRESS; + /* Maybe do a default OF mapping here */ dev->irq = NO_IRQ; - if (node->n_intrs > 0) { - dev->irq = node->intrs[0].line; - pci_write_config_byte(dev, PCI_INTERRUPT_LINE, - dev->irq); - } } pci_parse_of_addrs(node, dev); @@ -429,7 +391,7 @@ void __devinit of_scan_bus(struct device_node *node, struct pci_bus *bus) { struct device_node *child = NULL; - u32 *reg; + const u32 *reg; int reglen, devfn; struct pci_dev *dev; @@ -437,7 +399,7 @@ void __devinit of_scan_bus(struct device_node *node, while ((child = of_get_next_child(node, child)) != NULL) { DBG(" * %s\n", child->full_name); - reg = (u32 *) get_property(child, "reg", ®len); + reg = get_property(child, "reg", ®len); if (reg == NULL || reglen < 20) continue; devfn = (reg[0] >> 8) & 0xff; @@ -461,7 +423,7 @@ void __devinit of_scan_pci_bridge(struct device_node *node, struct pci_dev *dev) { struct pci_bus *bus; - u32 *busrange, *ranges; + const u32 *busrange, *ranges; int len, i, mode; struct resource *res; unsigned int flags; @@ -470,13 +432,13 @@ void __devinit of_scan_pci_bridge(struct device_node *node, DBG("of_scan_pci_bridge(%s)\n", node->full_name); /* parse bus-range property */ - busrange = (u32 *) get_property(node, "bus-range", &len); + busrange = get_property(node, "bus-range", &len); if (busrange == NULL || len != 8) { printk(KERN_DEBUG "Can't get bus-range for PCI-PCI bridge %s\n", node->full_name); return; } - ranges = (u32 *) get_property(node, "ranges", &len); + ranges = get_property(node, "ranges", &len); if (ranges == NULL) { printk(KERN_DEBUG "Can't get ranges for PCI-PCI bridge %s\n", node->full_name); @@ -545,7 +507,6 @@ void __devinit of_scan_pci_bridge(struct device_node *node, pci_scan_child_bus(bus); } EXPORT_SYMBOL(of_scan_pci_bridge); -#endif /* CONFIG_PPC_MULTIPLATFORM */ void __devinit scan_phb(struct pci_controller *hose) { @@ -556,7 +517,7 @@ void __devinit scan_phb(struct pci_controller *hose) DBG("Scanning PHB %s\n", node ? node->full_name : ""); - bus = pci_create_bus(NULL, hose->first_busno, hose->ops, node); + bus = pci_create_bus(hose->parent, hose->first_busno, hose->ops, node); if (bus == NULL) { printk(KERN_ERR "Failed to create bus for PCI domain %04x\n", hose->global_number); @@ -579,7 +540,7 @@ void __devinit scan_phb(struct pci_controller *hose) } mode = PCI_PROBE_NORMAL; -#ifdef CONFIG_PPC_MULTIPLATFORM + if (node && ppc_md.pci_probe_mode) mode = ppc_md.pci_probe_mode(bus); DBG(" probe mode: %d\n", mode); @@ -587,7 +548,7 @@ void __devinit scan_phb(struct pci_controller *hose) bus->subordinate = hose->last_busno; of_scan_bus(node, bus); } -#endif /* CONFIG_PPC_MULTIPLATFORM */ + if (mode == PCI_PROBE_NORMAL) hose->last_busno = bus->subordinate = pci_scan_child_bus(bus); } @@ -601,11 +562,10 @@ static int __init pcibios_init(void) */ ppc_md.phys_mem_access_prot = pci_phys_mem_access_prot; -#ifdef CONFIG_PPC_ISERIES - iSeries_pcibios_init(); -#endif + if (firmware_has_feature(FW_FEATURE_ISERIES)) + iSeries_pcibios_init(); - printk("PCI: Probing PCI hardware\n"); + printk(KERN_DEBUG "PCI: Probing PCI hardware\n"); /* Scan all of the recorded PCI controllers. */ list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { @@ -613,15 +573,15 @@ static int __init pcibios_init(void) pci_bus_add_devices(hose->bus); } -#ifndef CONFIG_PPC_ISERIES - if (pci_probe_only) - pcibios_claim_of_setup(); - else - /* FIXME: `else' will be removed when - pci_assign_unassigned_resources() is able to work - correctly with [partially] allocated PCI tree. */ - pci_assign_unassigned_resources(); -#endif /* !CONFIG_PPC_ISERIES */ + if (!firmware_has_feature(FW_FEATURE_ISERIES)) { + if (pci_probe_only) + pcibios_claim_of_setup(); + else + /* FIXME: `else' will be removed when + pci_assign_unassigned_resources() is able to work + correctly with [partially] allocated PCI tree. */ + pci_assign_unassigned_resources(); + } /* Call machine dependent final fixup */ if (ppc_md.pcibios_fixup) @@ -630,14 +590,13 @@ static int __init pcibios_init(void) /* Cache the location of the ISA bridge (if we have one) */ ppc64_isabridge_dev = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, NULL); if (ppc64_isabridge_dev != NULL) - printk("ISA bridge at %s\n", pci_name(ppc64_isabridge_dev)); + printk(KERN_DEBUG "ISA bridge at %s\n", pci_name(ppc64_isabridge_dev)); -#ifdef CONFIG_PPC_MULTIPLATFORM - /* map in PCI I/O space */ - phbs_remap_io(); -#endif + if (!firmware_has_feature(FW_FEATURE_ISERIES)) + /* map in PCI I/O space */ + phbs_remap_io(); - printk("PCI: Probing PCI hardware done\n"); + printk(KERN_DEBUG "PCI: Probing PCI hardware done\n"); return 0; } @@ -684,13 +643,13 @@ int pcibios_enable_device(struct pci_dev *dev, int mask) */ int pci_domain_nr(struct pci_bus *bus) { -#ifdef CONFIG_PPC_ISERIES - return 0; -#else - struct pci_controller *hose = pci_bus_to_host(bus); + if (firmware_has_feature(FW_FEATURE_ISERIES)) + return 0; + else { + struct pci_controller *hose = pci_bus_to_host(bus); - return hose->global_number; -#endif + return hose->global_number; + } } EXPORT_SYMBOL(pci_domain_nr); @@ -698,12 +657,12 @@ EXPORT_SYMBOL(pci_domain_nr); /* Decide whether to display the domain number in /proc */ int pci_proc_domain(struct pci_bus *bus) { -#ifdef CONFIG_PPC_ISERIES - return 0; -#else - struct pci_controller *hose = pci_bus_to_host(bus); - return hose->buid; -#endif + if (firmware_has_feature(FW_FEATURE_ISERIES)) + return 0; + else { + struct pci_controller *hose = pci_bus_to_host(bus); + return hose->buid; + } } /* @@ -724,7 +683,7 @@ int pci_proc_domain(struct pci_bus *bus) * Returns negative error code on failure, zero on success. */ static struct resource *__pci_mmap_make_offset(struct pci_dev *dev, - unsigned long *offset, + resource_size_t *offset, enum pci_mmap_state mmap_state) { struct pci_controller *hose = pci_bus_to_host(dev->bus); @@ -736,7 +695,9 @@ static struct resource *__pci_mmap_make_offset(struct pci_dev *dev, /* If memory, add on the PCI bridge address offset */ if (mmap_state == pci_mmap_mem) { +#if 0 /* See comment in pci_resource_to_user() for why this is disabled */ *offset += hose->pci_mem_offset; +#endif res_bit = IORESOURCE_MEM; } else { io_offset = (unsigned long)hose->io_base_virt - pci_io_base; @@ -804,9 +765,6 @@ static pgprot_t __pci_mmap_set_pgprot(struct pci_dev *dev, struct resource *rp, else prot |= _PAGE_GUARDED; - printk("PCI map for %s:%lx, prot: %lx\n", pci_name(dev), rp->start, - prot); - return __pgprot(prot); } @@ -874,7 +832,7 @@ pgprot_t pci_phys_mem_access_prot(struct file *file, int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, enum pci_mmap_state mmap_state, int write_combine) { - unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; + resource_size_t offset = vma->vm_pgoff << PAGE_SHIFT; struct resource *rp; int ret; @@ -883,7 +841,6 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, return -EINVAL; vma->vm_pgoff = offset >> PAGE_SHIFT; - vma->vm_flags |= VM_SHM | VM_LOCKED | VM_IO; vma->vm_page_prot = __pci_mmap_set_pgprot(dev, rp, vma->vm_page_prot, mmap_state, write_combine); @@ -894,8 +851,8 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, return ret; } -#ifdef CONFIG_PPC_MULTIPLATFORM -static ssize_t pci_show_devspec(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t pci_show_devspec(struct device *dev, + struct device_attribute *attr, char *buf) { struct pci_dev *pdev; struct device_node *np; @@ -907,17 +864,12 @@ static ssize_t pci_show_devspec(struct device *dev, struct device_attribute *att return sprintf(buf, "%s", np->full_name); } static DEVICE_ATTR(devspec, S_IRUGO, pci_show_devspec, NULL); -#endif /* CONFIG_PPC_MULTIPLATFORM */ void pcibios_add_platform_entries(struct pci_dev *pdev) { -#ifdef CONFIG_PPC_MULTIPLATFORM device_create_file(&pdev->dev, &dev_attr_devspec); -#endif /* CONFIG_PPC_MULTIPLATFORM */ } -#ifdef CONFIG_PPC_MULTIPLATFORM - #define ISA_SPACE_MASK 0x1 #define ISA_SPACE_IO 0x1 @@ -944,13 +896,13 @@ static void __devinit pci_process_ISA_OF_ranges(struct device_node *isa_node, unsigned int size; }; - struct isa_range *range; + const struct isa_range *range; unsigned long pci_addr; unsigned int isa_addr; unsigned int size; int rlen = 0; - range = (struct isa_range *) get_property(isa_node, "ranges", &rlen); + range = get_property(isa_node, "ranges", &rlen); if (range == NULL || (rlen < sizeof(struct isa_range))) { printk(KERN_ERR "no ISA ranges or unexpected isa range size," "mapping 64k\n"); @@ -991,7 +943,8 @@ static void __devinit pci_process_ISA_OF_ranges(struct device_node *isa_node, void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose, struct device_node *dev, int prim) { - unsigned int *ranges, pci_space; + const unsigned int *ranges; + unsigned int pci_space; unsigned long size; int rlen = 0; int memno = 0; @@ -1009,7 +962,7 @@ 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 */ - ranges = (unsigned int *) get_property(dev, "ranges", &rlen); + ranges = get_property(dev, "ranges", &rlen); if (ranges == NULL) return; hose->io_base_phys = 0; @@ -1017,11 +970,7 @@ void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose, res = NULL; pci_space = ranges[0]; pci_addr = ((unsigned long)ranges[1] << 32) | ranges[2]; - - cpu_phys_addr = ranges[3]; - if (na >= 2) - cpu_phys_addr = (cpu_phys_addr << 32) | ranges[4]; - + cpu_phys_addr = of_translate_address(dev, &ranges[3]); size = ((unsigned long)ranges[na+3] << 32) | ranges[na+4]; ranges += np; if (size == 0) @@ -1104,8 +1053,6 @@ void __init pci_setup_phb_io(struct pci_controller *hose, int primary) pci_process_ISA_OF_ranges(isa_dn, hose->io_base_phys, hose->io_base_virt); of_node_put(isa_dn); - /* Allow all IO */ - io_page_mask = -1; } } @@ -1189,7 +1136,7 @@ int unmap_bus_range(struct pci_bus *bus) if (get_bus_io_range(bus, &start_phys, &start_virt, &size)) return 1; - if (iounmap_explicit((void __iomem *) start_virt, size)) + if (__iounmap_explicit((void __iomem *) start_virt, size)) return 1; return 0; @@ -1212,7 +1159,7 @@ int remap_bus_range(struct pci_bus *bus) return 1; if (start_phys == 0) return 1; - printk("mapping IO %lx -> %lx, size: %lx\n", start_phys, start_virt, size); + printk(KERN_DEBUG "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)) return 1; @@ -1232,27 +1179,13 @@ static void phbs_remap_io(void) static void __devinit fixup_resource(struct resource *res, struct pci_dev *dev) { struct pci_controller *hose = pci_bus_to_host(dev->bus); - unsigned long start, end, mask, offset; + unsigned long offset; if (res->flags & IORESOURCE_IO) { offset = (unsigned long)hose->io_base_virt - pci_io_base; - start = res->start += offset; - end = res->end += offset; - - /* Need to allow IO access to pages that are in the - ISA range */ - if (start < MAX_ISA_PORT) { - if (end > MAX_ISA_PORT) - end = MAX_ISA_PORT; - - start >>= PAGE_SHIFT; - end >>= PAGE_SHIFT; - - /* get the range of pages for the map */ - mask = ((1 << (end+1)) - 1) ^ ((1 << start) - 1); - io_page_mask |= mask; - } + res->start += offset; + res->end += offset; } else if (res->flags & IORESOURCE_MEM) { res->start += hose->pci_mem_offset; res->end += hose->pci_mem_offset; @@ -1271,23 +1204,52 @@ void __devinit pcibios_fixup_device_resources(struct pci_dev *dev, } EXPORT_SYMBOL(pcibios_fixup_device_resources); +void __devinit pcibios_setup_new_device(struct pci_dev *dev) +{ + struct dev_archdata *sd = &dev->dev.archdata; + + sd->of_node = pci_device_to_OF_node(dev); + + DBG("PCI device %s OF node: %s\n", pci_name(dev), + sd->of_node ? sd->of_node->full_name : ""); + + sd->dma_ops = pci_dma_ops; +#ifdef CONFIG_NUMA + sd->numa_node = pcibus_to_node(dev->bus); +#else + sd->numa_node = -1; +#endif + if (ppc_md.pci_dma_dev_setup) + ppc_md.pci_dma_dev_setup(dev); +} +EXPORT_SYMBOL(pcibios_setup_new_device); static void __devinit do_bus_setup(struct pci_bus *bus) { struct pci_dev *dev; - ppc_md.iommu_bus_setup(bus); + if (ppc_md.pci_dma_bus_setup) + ppc_md.pci_dma_bus_setup(bus); list_for_each_entry(dev, &bus->devices, bus_list) - ppc_md.iommu_dev_setup(dev); + pcibios_setup_new_device(dev); - if (ppc_md.irq_bus_setup) - ppc_md.irq_bus_setup(bus); + /* Read default IRQs and fixup if necessary */ + list_for_each_entry(dev, &bus->devices, bus_list) { + pci_read_irq_line(dev); + if (ppc_md.pci_irq_fixup) + ppc_md.pci_irq_fixup(dev); + } } void __devinit pcibios_fixup_bus(struct pci_bus *bus) { struct pci_dev *dev = bus->self; + struct device_node *np; + + np = pci_bus_to_OF_node(bus); + + DBG("pcibios_fixup_bus(%s)\n", np ? np->full_name : ""); if (dev && pci_probe_only && (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) { @@ -1315,23 +1277,55 @@ EXPORT_SYMBOL(pcibios_fixup_bus); */ int pci_read_irq_line(struct pci_dev *pci_dev) { - u8 intpin; - struct device_node *node; + struct of_irq oirq; + unsigned int virq; - pci_read_config_byte(pci_dev, PCI_INTERRUPT_PIN, &intpin); - if (intpin == 0) - return 0; + DBG("Try to map irq for %s...\n", pci_name(pci_dev)); - node = pci_device_to_OF_node(pci_dev); - if (node == NULL) - return -1; +#ifdef DEBUG + memset(&oirq, 0xff, sizeof(oirq)); +#endif + /* Try to get a mapping from the device-tree */ + if (of_irq_map_pci(pci_dev, &oirq)) { + u8 line, pin; + + /* If that fails, lets fallback to what is in the config + * space and map that through the default controller. We + * also set the type to level low since that's what PCI + * interrupts are. If your platform does differently, then + * either provide a proper interrupt tree or don't use this + * function. + */ + if (pci_read_config_byte(pci_dev, PCI_INTERRUPT_PIN, &pin)) + return -1; + if (pin == 0) + return -1; + if (pci_read_config_byte(pci_dev, PCI_INTERRUPT_LINE, &line) || + line == 0xff) { + return -1; + } + DBG(" -> no map ! Using irq line %d from PCI config\n", line); - if (node->n_intrs == 0) + virq = irq_create_mapping(NULL, line); + if (virq != NO_IRQ) + set_irq_type(virq, IRQ_TYPE_LEVEL_LOW); + } else { + DBG(" -> got one, spec %d cells (0x%08x 0x%08x...) on %s\n", + oirq.size, oirq.specifier[0], oirq.specifier[1], + oirq.controller->full_name); + + virq = irq_create_of_mapping(oirq.controller, oirq.specifier, + oirq.size); + } + if(virq == NO_IRQ) { + DBG(" -> failed to map !\n"); return -1; + } - pci_dev->irq = node->intrs[0].line; + DBG(" -> mapped to linux irq %d\n", virq); - pci_write_config_byte(pci_dev, PCI_INTERRUPT_LINE, pci_dev->irq); + pci_dev->irq = virq; + pci_write_config_byte(pci_dev, PCI_INTERRUPT_LINE, virq); return 0; } @@ -1339,20 +1333,41 @@ EXPORT_SYMBOL(pci_read_irq_line); void pci_resource_to_user(const struct pci_dev *dev, int bar, const struct resource *rsrc, - u64 *start, u64 *end) + resource_size_t *start, resource_size_t *end) { struct pci_controller *hose = pci_bus_to_host(dev->bus); - unsigned long offset = 0; + resource_size_t offset = 0; if (hose == NULL) return; if (rsrc->flags & IORESOURCE_IO) - offset = pci_io_base - (unsigned long)hose->io_base_virt + - hose->io_base_phys; + offset = (unsigned long)hose->io_base_virt - pci_io_base; + + /* We pass a fully fixed up address to userland for MMIO instead of + * a BAR value because X is lame and expects to be able to use that + * to pass to /dev/mem ! + * + * That means that we'll have potentially 64 bits values where some + * userland apps only expect 32 (like X itself since it thinks only + * Sparc has 64 bits MMIO) but if we don't do that, we break it on + * 32 bits CHRPs :-( + * + * Hopefully, the sysfs insterface is immune to that gunk. Once X + * has been fixed (and the fix spread enough), we can re-enable the + * 2 lines below and pass down a BAR value to userland. In that case + * we'll also have to re-enable the matching code in + * __pci_mmap_make_offset(). + * + * BenH. + */ +#if 0 + else if (rsrc->flags & IORESOURCE_MEM) + offset = hose->pci_mem_offset; +#endif - *start = rsrc->start + offset; - *end = rsrc->end + offset; + *start = rsrc->start - offset; + *end = rsrc->end - offset; } struct pci_controller* pci_find_hose_for_OF_device(struct device_node* node) @@ -1369,8 +1384,6 @@ struct pci_controller* pci_find_hose_for_OF_device(struct device_node* node) return NULL; } -#endif /* CONFIG_PPC_MULTIPLATFORM */ - unsigned long pci_address_to_pio(phys_addr_t address) { struct pci_controller *hose, *tmp; @@ -1417,7 +1430,7 @@ 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->number + bus->subordinate)) + if (in_bus >= bus->number && in_bus <= bus->subordinate) break; bus = NULL; } @@ -1442,3 +1455,12 @@ long sys_pciconfig_iobase(long which, unsigned long in_bus, return -EOPNOTSUPP; } + +#ifdef CONFIG_NUMA +int pcibus_to_node(struct pci_bus *bus) +{ + struct pci_controller *phb = pci_bus_to_host(bus); + return phb->node; +} +EXPORT_SYMBOL(pcibus_to_node); +#endif