diff options
Diffstat (limited to 'arch/microblaze')
| -rw-r--r-- | arch/microblaze/include/asm/mmu_context_mm.h | 2 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/pci-bridge.h | 77 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/pci.h | 3 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/prom.h | 17 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/ptrace.h | 2 | ||||
| -rw-r--r-- | arch/microblaze/kernel/module.c | 35 | ||||
| -rw-r--r-- | arch/microblaze/pci/Makefile | 2 | ||||
| -rw-r--r-- | arch/microblaze/pci/pci-common.c | 114 | ||||
| -rw-r--r-- | arch/microblaze/pci/pci_32.c | 432 |
9 files changed, 127 insertions, 557 deletions
diff --git a/arch/microblaze/include/asm/mmu_context_mm.h b/arch/microblaze/include/asm/mmu_context_mm.h index 3e5c254e8d1..d6864774644 100644 --- a/arch/microblaze/include/asm/mmu_context_mm.h +++ b/arch/microblaze/include/asm/mmu_context_mm.h @@ -11,7 +11,7 @@ #ifndef _ASM_MICROBLAZE_MMU_CONTEXT_H #define _ASM_MICROBLAZE_MMU_CONTEXT_H -#include <asm/atomic.h> +#include <linux/atomic.h> #include <asm/bitops.h> #include <asm/mmu.h> #include <asm-generic/mm_hooks.h> diff --git a/arch/microblaze/include/asm/pci-bridge.h b/arch/microblaze/include/asm/pci-bridge.h index 746df91e579..32764cd077c 100644 --- a/arch/microblaze/include/asm/pci-bridge.h +++ b/arch/microblaze/include/asm/pci-bridge.h @@ -10,31 +10,19 @@ #include <linux/pci.h> #include <linux/list.h> #include <linux/ioport.h> +#include <asm-generic/pci-bridge.h> struct device_node; -enum { - /* Force re-assigning all resources (ignore firmware - * setup completely) - */ - PCI_REASSIGN_ALL_RSRC = 0x00000001, - - /* Re-assign all bus numbers */ - PCI_REASSIGN_ALL_BUS = 0x00000002, - - /* Do not try to assign, just use existing setup */ - PCI_PROBE_ONLY = 0x00000004, - - /* Don't bother with ISA alignment unless the bridge has - * ISA forwarding enabled - */ - PCI_CAN_SKIP_ISA_ALIGN = 0x00000008, - - /* Enable domain numbers in /proc */ - PCI_ENABLE_PROC_DOMAINS = 0x00000010, - /* ... except for domain 0 */ - PCI_COMPAT_DOMAIN_0 = 0x00000020, -}; +#ifdef CONFIG_PCI +extern struct list_head hose_list; +extern int pcibios_vaddr_is_ioport(void __iomem *address); +#else +static inline int pcibios_vaddr_is_ioport(void __iomem *address) +{ + return 0; +} +#endif /* * Structure of a PCI controller (host bridge) @@ -110,16 +98,6 @@ static inline struct pci_controller *pci_bus_to_host(const struct pci_bus *bus) return bus->sysdata; } -static inline struct device_node *pci_bus_to_OF_node(struct pci_bus *bus) -{ - struct pci_controller *host; - - if (bus->self) - return pci_device_to_OF_node(bus->self); - host = pci_bus_to_host(bus); - return host ? host->dn : NULL; -} - static inline int isa_vaddr_is_ioport(void __iomem *address) { /* No specific ISA handling on ppc32 at this stage, it @@ -164,40 +142,5 @@ extern struct pci_controller *pcibios_alloc_controller(struct device_node *dev); extern void pcibios_free_controller(struct pci_controller *phb); extern void pcibios_setup_phb_resources(struct pci_controller *hose); -#ifdef CONFIG_PCI -extern unsigned int pci_flags; - -static inline void pci_set_flags(int flags) -{ - pci_flags = flags; -} - -static inline void pci_add_flags(int flags) -{ - pci_flags |= flags; -} - -static inline int pci_has_flag(int flag) -{ - return pci_flags & flag; -} - -extern struct list_head hose_list; - -extern int pcibios_vaddr_is_ioport(void __iomem *address); -#else -static inline int pcibios_vaddr_is_ioport(void __iomem *address) -{ - return 0; -} - -static inline void pci_set_flags(int flags) { } -static inline void pci_add_flags(int flags) { } -static inline int pci_has_flag(int flag) -{ - return 0; -} -#endif /* CONFIG_PCI */ - #endif /* __KERNEL__ */ #endif /* _ASM_MICROBLAZE_PCI_BRIDGE_H */ diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h index ba65cf47254..1dd9d6b1e27 100644 --- a/arch/microblaze/include/asm/pci.h +++ b/arch/microblaze/include/asm/pci.h @@ -40,8 +40,7 @@ struct pci_dev; * Set this to 1 if you want the kernel to re-assign all PCI * bus numbers (don't do that on ppc64 yet !) */ -#define pcibios_assign_all_busses() \ - (pci_has_flag(PCI_REASSIGN_ALL_BUS)) +#define pcibios_assign_all_busses() 0 static inline void pcibios_set_master(struct pci_dev *dev) { diff --git a/arch/microblaze/include/asm/prom.h b/arch/microblaze/include/asm/prom.h index 34c4e8b2780..20c5e8e5121 100644 --- a/arch/microblaze/include/asm/prom.h +++ b/arch/microblaze/include/asm/prom.h @@ -21,7 +21,7 @@ #include <linux/types.h> #include <asm/irq.h> -#include <asm/atomic.h> +#include <linux/atomic.h> #define HAVE_ARCH_DEVTREE_FIXUPS @@ -33,21 +33,6 @@ enum early_consoles { extern int of_early_console(void *version); -#ifdef CONFIG_PCI -/* - * PCI <-> OF matching functions - * (XXX should these be here?) - */ -struct pci_bus; -struct pci_dev; -extern int pci_device_from_OF_node(struct device_node *node, - u8 *bus, u8 *devfn); -extern struct device_node *pci_busdev_to_OF_node(struct pci_bus *bus, - int devfn); -extern struct device_node *pci_device_to_OF_node(struct pci_dev *dev); -extern void pci_create_OF_bus_map(void); -#endif - /* * OF address retreival & translation */ diff --git a/arch/microblaze/include/asm/ptrace.h b/arch/microblaze/include/asm/ptrace.h index d9b66304d5d..816bee64b19 100644 --- a/arch/microblaze/include/asm/ptrace.h +++ b/arch/microblaze/include/asm/ptrace.h @@ -61,8 +61,6 @@ struct pt_regs { #define instruction_pointer(regs) ((regs)->pc) #define profile_pc(regs) instruction_pointer(regs) -void show_regs(struct pt_regs *); - #else /* __KERNEL__ */ /* pt_regs offsets used by gdbserver etc in ptrace syscalls */ diff --git a/arch/microblaze/kernel/module.c b/arch/microblaze/kernel/module.c index 0e73f660654..142426f631b 100644 --- a/arch/microblaze/kernel/module.c +++ b/arch/microblaze/kernel/module.c @@ -18,37 +18,6 @@ #include <asm/pgtable.h> #include <asm/cacheflush.h> -void *module_alloc(unsigned long size) -{ - void *ret; - ret = (size == 0) ? NULL : vmalloc(size); - pr_debug("module_alloc (%08lx@%08lx)\n", size, (unsigned long int)ret); - return ret; -} - -void module_free(struct module *module, void *region) -{ - pr_debug("module_free(%s,%08lx)\n", module->name, - (unsigned long)region); - vfree(region); -} - -int module_frob_arch_sections(Elf_Ehdr *hdr, - Elf_Shdr *sechdrs, - char *secstrings, - struct module *mod) -{ - return 0; -} - -int apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, - unsigned int symindex, unsigned int relsec, struct module *module) -{ - printk(KERN_ERR "module %s: ADD RELOCATION unsupported\n", - module->name); - return -ENOEXEC; -} - int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex, unsigned int relsec, struct module *module) { @@ -155,7 +124,3 @@ int module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs, flush_dcache(); return 0; } - -void module_arch_cleanup(struct module *mod) -{ -} diff --git a/arch/microblaze/pci/Makefile b/arch/microblaze/pci/Makefile index 9889cc2e129..d1114fbd478 100644 --- a/arch/microblaze/pci/Makefile +++ b/arch/microblaze/pci/Makefile @@ -2,5 +2,5 @@ # Makefile # -obj-$(CONFIG_PCI) += pci_32.o pci-common.o indirect_pci.o iomap.o +obj-$(CONFIG_PCI) += pci-common.o indirect_pci.o iomap.o obj-$(CONFIG_PCI_XILINX) += xilinx_pci.o diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c index 53599067d2f..4cfae20f106 100644 --- a/arch/microblaze/pci/pci-common.c +++ b/arch/microblaze/pci/pci-common.c @@ -50,6 +50,11 @@ unsigned int pci_flags; static struct dma_map_ops *pci_dma_ops = &dma_direct_ops; +unsigned long isa_io_base; +unsigned long pci_dram_offset; +static int pci_bus_count; + + void set_pci_dma_ops(struct dma_map_ops *dma_ops) { pci_dma_ops = dma_ops; @@ -89,7 +94,7 @@ void pcibios_free_controller(struct pci_controller *phb) static resource_size_t pcibios_io_size(const struct pci_controller *hose) { - return hose->io_resource.end - hose->io_resource.start + 1; + return resource_size(&hose->io_resource); } int pcibios_vaddr_is_ioport(void __iomem *address) @@ -1558,6 +1563,112 @@ void __devinit pcibios_setup_phb_resources(struct pci_controller *hose) (unsigned long)hose->io_base_virt - _IO_BASE); } +struct device_node *pcibios_get_phb_of_node(struct pci_bus *bus) +{ + struct pci_controller *hose = bus->sysdata; + + return of_node_get(hose->dn); +} + +static void __devinit pcibios_scan_phb(struct pci_controller *hose) +{ + struct pci_bus *bus; + struct device_node *node = hose->dn; + unsigned long io_offset; + struct resource *res = &hose->io_resource; + + pr_debug("PCI: Scanning PHB %s\n", + node ? node->full_name : "<NO NAME>"); + + /* Create an empty bus for the toplevel */ + bus = pci_create_bus(hose->parent, hose->first_busno, hose->ops, hose); + if (bus == NULL) { + printk(KERN_ERR "Failed to create bus for PCI domain %04x\n", + hose->global_number); + return; + } + bus->secondary = hose->first_busno; + hose->bus = bus; + + /* Fixup IO space offset */ + io_offset = (unsigned long)hose->io_base_virt - isa_io_base; + res->start = (res->start + io_offset) & 0xffffffffu; + res->end = (res->end + io_offset) & 0xffffffffu; + + /* Wire up PHB bus resources */ + pcibios_setup_phb_resources(hose); + + /* Scan children */ + hose->last_busno = bus->subordinate = pci_scan_child_bus(bus); +} + +static int __init pcibios_init(void) +{ + struct pci_controller *hose, *tmp; + int next_busno = 0; + + printk(KERN_INFO "PCI: Probing PCI hardware\n"); + + /* Scan all of the recorded PCI controllers. */ + list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { + hose->last_busno = 0xff; + pcibios_scan_phb(hose); + printk(KERN_INFO "calling pci_bus_add_devices()\n"); + pci_bus_add_devices(hose->bus); + if (next_busno <= hose->last_busno) + next_busno = hose->last_busno + 1; + } + pci_bus_count = next_busno; + + /* Call common code to handle resource allocation */ + pcibios_resource_survey(); + + return 0; +} + +subsys_initcall(pcibios_init); + +static struct pci_controller *pci_bus_to_hose(int bus) +{ + struct pci_controller *hose, *tmp; + + list_for_each_entry_safe(hose, tmp, &hose_list, list_node) + if (bus >= hose->first_busno && bus <= hose->last_busno) + return hose; + return NULL; +} + +/* Provide information on locations of various I/O regions in physical + * memory. Do this on a per-card basis so that we choose the right + * root bridge. + * Note that the returned IO or memory base is a physical address + */ + +long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn) +{ + struct pci_controller *hose; + long result = -EOPNOTSUPP; + + hose = pci_bus_to_hose(bus); + if (!hose) + return -ENODEV; + + switch (which) { + case IOBASE_BRIDGE_NUMBER: + return (long)hose->first_busno; + case IOBASE_MEMORY: + return (long)hose->pci_mem_offset; + case IOBASE_IO: + return (long)hose->io_base_phys; + case IOBASE_ISA_IO: + return (long)isa_io_base; + case IOBASE_ISA_MEM: + return (long)isa_mem_base; + } + + return result; +} + /* * Null PCI config access functions, for the case when we can't * find a hose. @@ -1626,3 +1737,4 @@ int early_find_capability(struct pci_controller *hose, int bus, int devfn, { return pci_bus_find_capability(fake_pci_bus(hose, bus), devfn, cap); } + diff --git a/arch/microblaze/pci/pci_32.c b/arch/microblaze/pci/pci_32.c deleted file mode 100644 index 92728a6cfd8..00000000000 --- a/arch/microblaze/pci/pci_32.c +++ /dev/null @@ -1,432 +0,0 @@ -/* - * Common pmac/prep/chrp pci routines. -- Cort - */ - -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/delay.h> -#include <linux/string.h> -#include <linux/init.h> -#include <linux/capability.h> -#include <linux/sched.h> -#include <linux/errno.h> -#include <linux/bootmem.h> -#include <linux/irq.h> -#include <linux/list.h> -#include <linux/of.h> -#include <linux/slab.h> - -#include <asm/processor.h> -#include <asm/io.h> -#include <asm/prom.h> -#include <asm/sections.h> -#include <asm/pci-bridge.h> -#include <asm/byteorder.h> -#include <asm/uaccess.h> - -#undef DEBUG - -unsigned long isa_io_base; -unsigned long pci_dram_offset; -int pcibios_assign_bus_offset = 1; - -static u8 *pci_to_OF_bus_map; - -/* By default, we don't re-assign bus numbers. We do this only on - * some pmacs - */ -static int pci_assign_all_buses; - -static int pci_bus_count; - -/* - * Functions below are used on OpenFirmware machines. - */ -static void -make_one_node_map(struct device_node *node, u8 pci_bus) -{ - const int *bus_range; - int len; - - if (pci_bus >= pci_bus_count) - return; - bus_range = of_get_property(node, "bus-range", &len); - if (bus_range == NULL || len < 2 * sizeof(int)) { - printk(KERN_WARNING "Can't get bus-range for %s, " - "assuming it starts at 0\n", node->full_name); - pci_to_OF_bus_map[pci_bus] = 0; - } else - pci_to_OF_bus_map[pci_bus] = bus_range[0]; - - for_each_child_of_node(node, node) { - struct pci_dev *dev; - const unsigned int *class_code, *reg; - - class_code = of_get_property(node, "class-code", NULL); - if (!class_code || - ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI && - (*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS)) - continue; - reg = of_get_property(node, "reg", NULL); - if (!reg) - continue; - dev = pci_get_bus_and_slot(pci_bus, ((reg[0] >> 8) & 0xff)); - if (!dev || !dev->subordinate) { - pci_dev_put(dev); - continue; - } - make_one_node_map(node, dev->subordinate->number); - pci_dev_put(dev); - } -} - -void -pcibios_make_OF_bus_map(void) -{ - int i; - struct pci_controller *hose, *tmp; - struct property *map_prop; - struct device_node *dn; - - pci_to_OF_bus_map = kmalloc(pci_bus_count, GFP_KERNEL); - if (!pci_to_OF_bus_map) { - printk(KERN_ERR "Can't allocate OF bus map !\n"); - return; - } - - /* We fill the bus map with invalid values, that helps - * debugging. - */ - for (i = 0; i < pci_bus_count; i++) - pci_to_OF_bus_map[i] = 0xff; - - /* For each hose, we begin searching bridges */ - list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { - struct device_node *node = hose->dn; - - if (!node) - continue; - make_one_node_map(node, hose->first_busno); - } - dn = of_find_node_by_path("/"); - map_prop = of_find_property(dn, "pci-OF-bus-map", NULL); - if (map_prop) { - BUG_ON(pci_bus_count > map_prop->length); - memcpy(map_prop->value, pci_to_OF_bus_map, pci_bus_count); - } - of_node_put(dn); -#ifdef DEBUG - printk(KERN_INFO "PCI->OF bus map:\n"); - for (i = 0; i < pci_bus_count; i++) { - if (pci_to_OF_bus_map[i] == 0xff) - continue; - printk(KERN_INFO "%d -> %d\n", i, pci_to_OF_bus_map[i]); - } -#endif -} - -typedef int (*pci_OF_scan_iterator)(struct device_node *node, void *data); - -static struct device_node *scan_OF_pci_childs(struct device_node *parent, - pci_OF_scan_iterator filter, void *data) -{ - struct device_node *node; - struct device_node *sub_node; - - for_each_child_of_node(parent, node) { - const unsigned int *class_code; - - if (filter(node, data)) { - of_node_put(node); - return node; - } - - /* For PCI<->PCI bridges or CardBus bridges, we go down - * Note: some OFs create a parent node "multifunc-device" as - * a fake root for all functions of a multi-function device, - * we go down them as well. - */ - class_code = of_get_property(node, "class-code", NULL); - if ((!class_code || - ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI && - (*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS)) && - strcmp(node->name, "multifunc-device")) - continue; - sub_node = scan_OF_pci_childs(node, filter, data); - if (sub_node) { - of_node_put(node); - return sub_node; - } - } - return NULL; -} - -static struct device_node *scan_OF_for_pci_dev(struct device_node *parent, - unsigned int devfn) -{ - struct device_node *np, *cnp; - const u32 *reg; - unsigned int psize; - - for_each_child_of_node(parent, np) { - reg = of_get_property(np, "reg", &psize); - if (reg && psize >= 4 && ((reg[0] >> 8) & 0xff) == devfn) - return np; - - /* Note: some OFs create a parent node "multifunc-device" as - * a fake root for all functions of a multi-function device, - * we go down them as well. */ - if (!strcmp(np->name, "multifunc-device")) { - cnp = scan_OF_for_pci_dev(np, devfn); - if (cnp) - return cnp; - } - } - return NULL; -} - - -static struct device_node *scan_OF_for_pci_bus(struct pci_bus *bus) -{ - struct device_node *parent, *np; - - /* Are we a root bus ? */ - if (bus->self == NULL || bus->parent == NULL) { - struct pci_controller *hose = pci_bus_to_host(bus); - if (hose == NULL) - return NULL; - return of_node_get(hose->dn); - } - - /* not a root bus, we need to get our parent */ - parent = scan_OF_for_pci_bus(bus->parent); - if (parent == NULL) - return NULL; - - /* now iterate for children for a match */ - np = scan_OF_for_pci_dev(parent, bus->self->devfn); - of_node_put(parent); - - return np; -} - -/* - * Scans the OF tree for a device node matching a PCI device - */ -struct device_node * -pci_busdev_to_OF_node(struct pci_bus *bus, int devfn) -{ - struct device_node *parent, *np; - - pr_debug("pci_busdev_to_OF_node(%d,0x%x)\n", bus->number, devfn); - parent = scan_OF_for_pci_bus(bus); - if (parent == NULL) - return NULL; - pr_debug(" parent is %s\n", parent ? parent->full_name : "<NULL>"); - np = scan_OF_for_pci_dev(parent, devfn); - of_node_put(parent); - pr_debug(" result is %s\n", np ? np->full_name : "<NULL>"); - - /* XXX most callers don't release the returned node - * mostly because ppc64 doesn't increase the refcount, - * we need to fix that. - */ - return np; -} -EXPORT_SYMBOL(pci_busdev_to_OF_node); - -struct device_node* -pci_device_to_OF_node(struct pci_dev *dev) -{ - return pci_busdev_to_OF_node(dev->bus, dev->devfn); -} -EXPORT_SYMBOL(pci_device_to_OF_node); - -static int -find_OF_pci_device_filter(struct device_node *node, void *data) -{ - return ((void *)node == data); -} - -/* - * Returns the PCI device matching a given OF node - */ -int -pci_device_from_OF_node(struct device_node *node, u8 *bus, u8 *devfn) -{ - const unsigned int *reg; - struct pci_controller *hose; - struct pci_dev *dev = NULL; - - /* Make sure it's really a PCI device */ - hose = pci_find_hose_for_OF_device(node); - if (!hose || !hose->dn) - return -ENODEV; - if (!scan_OF_pci_childs(hose->dn, - find_OF_pci_device_filter, (void *)node)) - return -ENODEV; - reg = of_get_property(node, "reg", NULL); - if (!reg) - return -ENODEV; - *bus = (reg[0] >> 16) & 0xff; - *devfn = ((reg[0] >> 8) & 0xff); - - /* Ok, here we need some tweak. If we have already renumbered - * all busses, we can't rely on the OF bus number any more. - * the pci_to_OF_bus_map is not enough as several PCI busses - * may match the same OF bus number. - */ - if (!pci_to_OF_bus_map) - return 0; - - for_each_pci_dev(dev) - if (pci_to_OF_bus_map[dev->bus->number] == *bus && - dev->devfn == *devfn) { - *bus = dev->bus->number; - pci_dev_put(dev); - return 0; - } - - return -ENODEV; -} -EXPORT_SYMBOL(pci_device_from_OF_node); - -/* We create the "pci-OF-bus-map" property now so it appears in the - * /proc device tree - */ -void __init -pci_create_OF_bus_map(void) -{ - struct property *of_prop; - struct device_node *dn; - - of_prop = (struct property *) alloc_bootmem(sizeof(struct property) + \ - 256); - if (!of_prop) - return; - dn = of_find_node_by_path("/"); - if (dn) { - memset(of_prop, -1, sizeof(struct property) + 256); - of_prop->name = "pci-OF-bus-map"; - of_prop->length = 256; - of_prop->value = &of_prop[1]; - prom_add_property(dn, of_prop); - of_node_put(dn); - } -} - -static void __devinit pcibios_scan_phb(struct pci_controller *hose) -{ - struct pci_bus *bus; - struct device_node *node = hose->dn; - unsigned long io_offset; - struct resource *res = &hose->io_resource; - - pr_debug("PCI: Scanning PHB %s\n", - node ? node->full_name : "<NO NAME>"); - - /* Create an empty bus for the toplevel */ - bus = pci_create_bus(hose->parent, hose->first_busno, hose->ops, hose); - if (bus == NULL) { - printk(KERN_ERR "Failed to create bus for PCI domain %04x\n", - hose->global_number); - return; - } - bus.dev->of_node = of_node_get(node); - bus->secondary = hose->first_busno; - hose->bus = bus; - - /* Fixup IO space offset */ - io_offset = (unsigned long)hose->io_base_virt - isa_io_base; - res->start = (res->start + io_offset) & 0xffffffffu; - res->end = (res->end + io_offset) & 0xffffffffu; - - /* Wire up PHB bus resources */ - pcibios_setup_phb_resources(hose); - - /* Scan children */ - hose->last_busno = bus->subordinate = pci_scan_child_bus(bus); -} - -static int __init pcibios_init(void) -{ - struct pci_controller *hose, *tmp; - int next_busno = 0; - - printk(KERN_INFO "PCI: Probing PCI hardware\n"); - - if (pci_flags & PCI_REASSIGN_ALL_BUS) { - printk(KERN_INFO "setting pci_asign_all_busses\n"); - pci_assign_all_buses = 1; - } - - /* Scan all of the recorded PCI controllers. */ - list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { - if (pci_assign_all_buses) - hose->first_busno = next_busno; - hose->last_busno = 0xff; - pcibios_scan_phb(hose); - printk(KERN_INFO "calling pci_bus_add_devices()\n"); - pci_bus_add_devices(hose->bus); - if (pci_assign_all_buses || next_busno <= hose->last_busno) - next_busno = hose->last_busno + \ - pcibios_assign_bus_offset; - } - pci_bus_count = next_busno; - - /* OpenFirmware based machines need a map of OF bus - * numbers vs. kernel bus numbers since we may have to - * remap them. - */ - if (pci_assign_all_buses) - pcibios_make_OF_bus_map(); - - /* Call common code to handle resource allocation */ - pcibios_resource_survey(); - - return 0; -} - -subsys_initcall(pcibios_init); - -static struct pci_controller* -pci_bus_to_hose(int bus) -{ - struct pci_controller *hose, *tmp; - - list_for_each_entry_safe(hose, tmp, &hose_list, list_node) - if (bus >= hose->first_busno && bus <= hose->last_busno) - return hose; - return NULL; -} - -/* Provide information on locations of various I/O regions in physical - * memory. Do this on a per-card basis so that we choose the right - * root bridge. - * Note that the returned IO or memory base is a physical address - */ - -long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn) -{ - struct pci_controller *hose; - long result = -EOPNOTSUPP; - - hose = pci_bus_to_hose(bus); - if (!hose) - return -ENODEV; - - switch (which) { - case IOBASE_BRIDGE_NUMBER: - return (long)hose->first_busno; - case IOBASE_MEMORY: - return (long)hose->pci_mem_offset; - case IOBASE_IO: - return (long)hose->io_base_phys; - case IOBASE_ISA_IO: - return (long)isa_io_base; - case IOBASE_ISA_MEM: - return (long)isa_mem_base; - } - - return result; -} |