X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=arch%2Fpowerpc%2Fkernel%2Frtas_pci.c;h=21f14e57d1f3d848d9d7d375abf96c2a83ae1b27;hb=aa3be5f32db137bc4404f32a24b36fb47d48d260;hp=0e5a8e116653e8a111bfde579a2f30b33b86936b;hpb=d3d2176a0bc696b5365ce0e8f82a29a521d85fd0;p=safe%2Fjmp%2Flinux-2.6 diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c index 0e5a8e1..21f14e5 100644 --- a/arch/powerpc/kernel/rtas_pci.c +++ b/arch/powerpc/kernel/rtas_pci.c @@ -1,6 +1,4 @@ /* - * arch/ppc64/kernel/rtas_pci.c - * * Copyright (C) 2001 Dave Engebretsen, IBM Corporation * Copyright (C) 2003 Anton Blanchard , IBM * @@ -40,6 +38,7 @@ #include #include #include +#include /* RTAS tokens */ static int read_pci_config; @@ -59,9 +58,9 @@ static inline int config_access_valid(struct pci_dn *dn, int where) static int of_device_available(struct device_node * dn) { - char * status; + const char *status; - status = get_property(dn, "status", NULL); + status = of_get_property(dn, "status", NULL); if (!status) return 1; @@ -72,7 +71,7 @@ static int of_device_available(struct device_node * dn) return 0; } -static int rtas_read_config(struct pci_dn *pdn, int where, int size, u32 *val) +int rtas_read_config(struct pci_dn *pdn, int where, int size, u32 *val) { int returnval = -1; unsigned long buid, addr; @@ -83,8 +82,7 @@ static int rtas_read_config(struct pci_dn *pdn, int where, int size, u32 *val) if (!config_access_valid(pdn, where)) return PCIBIOS_BAD_REGISTER_NUMBER; - addr = ((where & 0xf00) << 20) | (pdn->busno << 16) | - (pdn->devfn << 8) | (where & 0xff); + addr = rtas_config_addr(pdn->busno, pdn->devfn, where); buid = pdn->phb->buid; if (buid) { ret = rtas_call(ibm_read_pci_config, 4, 2, &returnval, @@ -136,8 +134,7 @@ int rtas_write_config(struct pci_dn *pdn, int where, int size, u32 val) if (!config_access_valid(pdn, where)) return PCIBIOS_BAD_REGISTER_NUMBER; - addr = ((where & 0xf00) << 20) | (pdn->busno << 16) | - (pdn->devfn << 8) | (where & 0xff); + addr = rtas_config_addr(pdn->busno, pdn->devfn, where); buid = pdn->phb->buid; if (buid) { ret = rtas_call(ibm_write_pci_config, 5, 1, NULL, addr, @@ -174,13 +171,13 @@ static int rtas_pci_write_config(struct pci_bus *bus, } struct pci_ops rtas_pci_ops = { - rtas_pci_read_config, - rtas_pci_write_config + .read = rtas_pci_read_config, + .write = rtas_pci_write_config, }; int is_python(struct device_node *dev) { - char *model = (char *)get_property(dev, "model", NULL); + const char *model = of_get_property(dev, "model", NULL); if (model && strstr(model, "Python")) return 1; @@ -188,39 +185,19 @@ int is_python(struct device_node *dev) return 0; } -static int get_phb_reg_prop(struct device_node *dev, - unsigned int addr_size_words, - struct reg_property64 *reg) -{ - unsigned int *ui_ptr = NULL, len; - - /* Found a PHB, now figure out where his registers are mapped. */ - ui_ptr = (unsigned int *)get_property(dev, "reg", &len); - if (ui_ptr == NULL) - return 1; - - if (addr_size_words == 1) { - reg->address = ((struct reg_property32 *)ui_ptr)->address; - reg->size = ((struct reg_property32 *)ui_ptr)->size; - } else { - *reg = *((struct reg_property64 *)ui_ptr); - } - - return 0; -} - -static void python_countermeasures(struct device_node *dev, - unsigned int addr_size_words) +static void python_countermeasures(struct device_node *dev) { - struct reg_property64 reg_struct; + struct resource registers; void __iomem *chip_regs; volatile u32 val; - if (get_phb_reg_prop(dev, addr_size_words, ®_struct)) + if (of_address_to_resource(dev, 0, ®isters)) { + printk(KERN_ERR "Can't get address for Python workarounds !\n"); return; + } /* Python's register file is 1 MB in size. */ - chip_regs = ioremap(reg_struct.address & ~(0xfffffUL), 0x100000); + chip_regs = ioremap(registers.start & ~(0xfffffUL), 0x100000); /* * Firmware doesn't always clear this bit which is critical @@ -255,41 +232,22 @@ void __init init_pci_config_tokens (void) unsigned long __devinit get_phb_buid (struct device_node *phb) { - int addr_cells; - unsigned int *buid_vals; - unsigned int len; - unsigned long buid; - - if (ibm_read_pci_config == -1) return 0; + struct resource r; - /* PHB's will always be children of the root node, - * or so it is promised by the current firmware. */ - if (phb->parent == NULL) + if (ibm_read_pci_config == -1) return 0; - if (phb->parent->parent) - return 0; - - buid_vals = (unsigned int *) get_property(phb, "reg", &len); - if (buid_vals == NULL) + if (of_address_to_resource(phb, 0, &r)) return 0; - - addr_cells = prom_n_addr_cells(phb); - if (addr_cells == 1) { - buid = (unsigned long) buid_vals[0]; - } else { - buid = (((unsigned long)buid_vals[0]) << 32UL) | - (((unsigned long)buid_vals[1]) & 0xffffffff); - } - return buid; + return r.start; } static int phb_set_bus_ranges(struct device_node *dev, struct pci_controller *phb) { - int *bus_range; + const int *bus_range; unsigned int len; - bus_range = (int *) get_property(dev, "bus-range", &len); + bus_range = of_get_property(dev, "bus-range", &len); if (bus_range == NULL || len < 2 * sizeof(int)) { return 1; } @@ -300,116 +258,42 @@ static int phb_set_bus_ranges(struct device_node *dev, return 0; } -static int __devinit setup_phb(struct device_node *dev, - struct pci_controller *phb, - unsigned int addr_size_words) +int __devinit rtas_setup_phb(struct pci_controller *phb) { - pci_setup_pci_controller(phb); + struct device_node *dev = phb->arch_data; if (is_python(dev)) - python_countermeasures(dev, addr_size_words); + python_countermeasures(dev); 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) +void __init find_and_init_phbs(void) { struct device_node *node; struct pci_controller *phb; - unsigned int root_size_cells = 0; - unsigned int index; - unsigned int *opprop = NULL; struct device_node *root = of_find_node_by_path("/"); - if (ppc64_interrupt_controller == IC_OPEN_PIC) { - opprop = (unsigned int *)get_property(root, - "platform-open-pic", NULL); - } - - root_size_cells = prom_n_size_cells(root); - - index = 0; - for (node = of_get_next_child(root, NULL); node != NULL; node = of_get_next_child(root, node)) { - if (node->type == NULL || strcmp(node->type, "pci") != 0) + + if (node->type == NULL || (strcmp(node->type, "pci") != 0 && + strcmp(node->type, "pciex") != 0)) continue; - phb = alloc_phb(node, root_size_cells); + phb = pcibios_alloc_controller(node); if (!phb) continue; - + rtas_setup_phb(phb); pci_process_bridge_OF_ranges(phb, node, 0); - pci_setup_phb_io(phb, index == 0); -#ifdef CONFIG_PPC_PSERIES - if (ppc64_interrupt_controller == IC_OPEN_PIC && pSeries_mpic) { - int addr = root_size_cells * (index + 2) - 1; - mpic_assign_isu(pSeries_mpic, index, opprop[addr]); - } -#endif - index++; + isa_bridge_find_early(phb); } of_node_put(root); @@ -420,47 +304,19 @@ unsigned long __init find_and_init_phbs(void) * in chosen. */ if (of_chosen) { - int *prop; + const int *prop; - prop = (int *)get_property(of_chosen, "linux,pci-probe-only", - NULL); + prop = of_get_property(of_chosen, + "linux,pci-probe-only", NULL); if (prop) pci_probe_only = *prop; - prop = (int *)get_property(of_chosen, - "linux,pci-assign-all-buses", NULL); + prop = of_get_property(of_chosen, + "linux,pci-assign-all-buses", NULL); if (prop) pci_assign_all_buses = *prop; } - - return 0; -} - -struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn) -{ - struct device_node *root = of_find_node_by_path("/"); - unsigned int root_size_cells = 0; - struct pci_controller *phb; - int primary; - - root_size_cells = prom_n_size_cells(root); - - primary = list_empty(&hose_list); - phb = alloc_phb_dynamic(dn, root_size_cells); - if (!phb) - return NULL; - - pci_process_bridge_OF_ranges(phb, dn, primary); - - pci_setup_phb_io_dynamic(phb, primary); - of_node_put(root); - - pci_devs_phb_init_dynamic(phb); - scan_phb(phb); - - return phb; } -EXPORT_SYMBOL(init_phb_dynamic); /* RPA-specific bits for removing PHBs */ int pcibios_remove_root_bus(struct pci_controller *phb) @@ -476,7 +332,7 @@ int pcibios_remove_root_bus(struct pci_controller *phb) return 1; } - rc = unmap_bus_range(b); + rc = pcibios_unmap_io_space(b); if (rc) { printk(KERN_ERR "%s: failed to unmap IO on bus %s\n", __FUNCTION__, b->name); @@ -504,9 +360,7 @@ 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; }