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Diffstat (limited to 'include/asm-powerpc/pci-bridge.h')
| -rw-r--r-- | include/asm-powerpc/pci-bridge.h | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/include/asm-powerpc/pci-bridge.h b/include/asm-powerpc/pci-bridge.h deleted file mode 100644 index ae2ea803a0f2..000000000000 --- a/include/asm-powerpc/pci-bridge.h +++ /dev/null @@ -1,302 +0,0 @@ -#ifndef _ASM_POWERPC_PCI_BRIDGE_H -#define _ASM_POWERPC_PCI_BRIDGE_H -#ifdef __KERNEL__ -/* - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ -#include <linux/pci.h> -#include <linux/list.h> -#include <linux/ioport.h> - -struct device_node; - -extern unsigned int ppc_pci_flags; -enum { - /* Force re-assigning all resources (ignore firmware - * setup completely) - */ - PPC_PCI_REASSIGN_ALL_RSRC = 0x00000001, - - /* Re-assign all bus numbers */ - PPC_PCI_REASSIGN_ALL_BUS = 0x00000002, - - /* Do not try to assign, just use existing setup */ - PPC_PCI_PROBE_ONLY = 0x00000004, - - /* Don't bother with ISA alignment unless the bridge has - * ISA forwarding enabled - */ - PPC_PCI_CAN_SKIP_ISA_ALIGN = 0x00000008, - - /* Enable domain numbers in /proc */ - PPC_PCI_ENABLE_PROC_DOMAINS = 0x00000010, - /* ... except for domain 0 */ - PPC_PCI_COMPAT_DOMAIN_0 = 0x00000020, -}; - - -/* - * Structure of a PCI controller (host bridge) - */ -struct pci_controller { - struct pci_bus *bus; - char is_dynamic; -#ifdef CONFIG_PPC64 - int node; -#endif - struct device_node *dn; - struct list_head list_node; - struct device *parent; - - int first_busno; - int last_busno; -#ifndef CONFIG_PPC64 - int self_busno; -#endif - - void __iomem *io_base_virt; -#ifdef CONFIG_PPC64 - void *io_base_alloc; -#endif - resource_size_t io_base_phys; -#ifndef CONFIG_PPC64 - resource_size_t pci_io_size; -#endif - - /* Some machines (PReP) have a non 1:1 mapping of - * the PCI memory space in the CPU bus space - */ - resource_size_t pci_mem_offset; -#ifdef CONFIG_PPC64 - unsigned long pci_io_size; -#endif - - struct pci_ops *ops; - unsigned int __iomem *cfg_addr; - void __iomem *cfg_data; - -#ifndef CONFIG_PPC64 - /* - * Used for variants of PCI indirect handling and possible quirks: - * SET_CFG_TYPE - used on 4xx or any PHB that does explicit type0/1 - * EXT_REG - provides access to PCI-e extended registers - * SURPRESS_PRIMARY_BUS - we surpress the setting of PCI_PRIMARY_BUS - * on Freescale PCI-e controllers since they used the PCI_PRIMARY_BUS - * to determine which bus number to match on when generating type0 - * config cycles - * NO_PCIE_LINK - the Freescale PCI-e controllers have issues with - * hanging if we don't have link and try to do config cycles to - * anything but the PHB. Only allow talking to the PHB if this is - * set. - * BIG_ENDIAN - cfg_addr is a big endian register - * BROKEN_MRM - the 440EPx/GRx chips have an errata that causes hangs on - * the PLB4. Effectively disable MRM commands by setting this. - */ -#define PPC_INDIRECT_TYPE_SET_CFG_TYPE 0x00000001 -#define PPC_INDIRECT_TYPE_EXT_REG 0x00000002 -#define PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS 0x00000004 -#define PPC_INDIRECT_TYPE_NO_PCIE_LINK 0x00000008 -#define PPC_INDIRECT_TYPE_BIG_ENDIAN 0x00000010 -#define PPC_INDIRECT_TYPE_BROKEN_MRM 0x00000020 - u32 indirect_type; -#endif /* !CONFIG_PPC64 */ - /* Currently, we limit ourselves to 1 IO range and 3 mem - * ranges since the common pci_bus structure can't handle more - */ - struct resource io_resource; - struct resource mem_resources[3]; - int global_number; /* PCI domain number */ -#ifdef CONFIG_PPC64 - unsigned long buid; - unsigned long dma_window_base_cur; - unsigned long dma_window_size; - - void *private_data; -#endif /* CONFIG_PPC64 */ -}; - -#ifndef CONFIG_PPC64 - -static inline struct pci_controller *pci_bus_to_host(const struct pci_bus *bus) -{ - return bus->sysdata; -} - -static inline int isa_vaddr_is_ioport(void __iomem *address) -{ - /* No specific ISA handling on ppc32 at this stage, it - * all goes through PCI - */ - return 0; -} - -/* These are used for config access before all the PCI probing - has been done. */ -extern int early_read_config_byte(struct pci_controller *hose, int bus, - int dev_fn, int where, u8 *val); -extern int early_read_config_word(struct pci_controller *hose, int bus, - int dev_fn, int where, u16 *val); -extern int early_read_config_dword(struct pci_controller *hose, int bus, - int dev_fn, int where, u32 *val); -extern int early_write_config_byte(struct pci_controller *hose, int bus, - int dev_fn, int where, u8 val); -extern int early_write_config_word(struct pci_controller *hose, int bus, - int dev_fn, int where, u16 val); -extern int early_write_config_dword(struct pci_controller *hose, int bus, - int dev_fn, int where, u32 val); - -extern int early_find_capability(struct pci_controller *hose, int bus, - int dev_fn, int cap); - -extern void setup_indirect_pci(struct pci_controller* hose, - resource_size_t cfg_addr, - resource_size_t cfg_data, u32 flags); -extern void setup_grackle(struct pci_controller *hose); -#else /* CONFIG_PPC64 */ - -/* - * PCI stuff, for nodes representing PCI devices, pointed to - * by device_node->data. - */ -struct iommu_table; - -struct pci_dn { - int busno; /* pci bus number */ - int devfn; /* pci device and function number */ - - struct pci_controller *phb; /* for pci devices */ - struct iommu_table *iommu_table; /* for phb's or bridges */ - struct device_node *node; /* back-pointer to the device_node */ - - int pci_ext_config_space; /* for pci devices */ - -#ifdef CONFIG_EEH - struct pci_dev *pcidev; /* back-pointer to the pci device */ - int class_code; /* pci device class */ - int eeh_mode; /* See eeh.h for possible EEH_MODEs */ - int eeh_config_addr; - int eeh_pe_config_addr; /* new-style partition endpoint address */ - int eeh_check_count; /* # times driver ignored error */ - int eeh_freeze_count; /* # times this device froze up. */ - int eeh_false_positives; /* # times this device reported #ff's */ - u32 config_space[16]; /* saved PCI config space */ -#endif -}; - -/* Get the pointer to a device_node's pci_dn */ -#define PCI_DN(dn) ((struct pci_dn *) (dn)->data) - -extern struct device_node *fetch_dev_dn(struct pci_dev *dev); - -/* Get a device_node from a pci_dev. This code must be fast except - * in the case where the sysdata is incorrect and needs to be fixed - * up (this will only happen once). - * In this case the sysdata will have been inherited from a PCI host - * bridge or a PCI-PCI bridge further up the tree, so it will point - * to a valid struct pci_dn, just not the one we want. - */ -static inline struct device_node *pci_device_to_OF_node(struct pci_dev *dev) -{ - struct device_node *dn = dev->sysdata; - struct pci_dn *pdn = dn->data; - - if (pdn && pdn->devfn == dev->devfn && pdn->busno == dev->bus->number) - return dn; /* fast path. sysdata is good */ - return fetch_dev_dn(dev); -} - -static inline int pci_device_from_OF_node(struct device_node *np, - u8 *bus, u8 *devfn) -{ - if (!PCI_DN(np)) - return -ENODEV; - *bus = PCI_DN(np)->busno; - *devfn = PCI_DN(np)->devfn; - return 0; -} - -static inline struct device_node *pci_bus_to_OF_node(struct pci_bus *bus) -{ - if (bus->self) - return pci_device_to_OF_node(bus->self); - else - return bus->sysdata; /* Must be root bus (PHB) */ -} - -/** Find the bus corresponding to the indicated device node */ -extern struct pci_bus *pcibios_find_pci_bus(struct device_node *dn); - -/** Remove all of the PCI devices under this bus */ -extern void pcibios_remove_pci_devices(struct pci_bus *bus); - -/** Discover new pci devices under this bus, and add them */ -extern void pcibios_add_pci_devices(struct pci_bus *bus); -extern void pcibios_fixup_new_pci_devices(struct pci_bus *bus); - -extern int pcibios_remove_root_bus(struct pci_controller *phb); - -static inline struct pci_controller *pci_bus_to_host(const struct pci_bus *bus) -{ - struct device_node *busdn = bus->sysdata; - - BUG_ON(busdn == NULL); - return PCI_DN(busdn)->phb; -} - - -extern void isa_bridge_find_early(struct pci_controller *hose); - -static inline int isa_vaddr_is_ioport(void __iomem *address) -{ - /* Check if address hits the reserved legacy IO range */ - unsigned long ea = (unsigned long)address; - return ea >= ISA_IO_BASE && ea < ISA_IO_END; -} - -extern int pcibios_unmap_io_space(struct pci_bus *bus); -extern int pcibios_map_io_space(struct pci_bus *bus); - -/* Return values for ppc_md.pci_probe_mode function */ -#define PCI_PROBE_NONE -1 /* Don't look at this bus at all */ -#define PCI_PROBE_NORMAL 0 /* Do normal PCI probing */ -#define PCI_PROBE_DEVTREE 1 /* Instantiate from device tree */ - -#ifdef CONFIG_NUMA -#define PHB_SET_NODE(PHB, NODE) ((PHB)->node = (NODE)) -#else -#define PHB_SET_NODE(PHB, NODE) ((PHB)->node = -1) -#endif - -#endif /* CONFIG_PPC64 */ - -/* Get the PCI host controller for an OF device */ -extern struct pci_controller *pci_find_hose_for_OF_device( - struct device_node* node); - -/* Fill up host controller resources from the OF node */ -extern void pci_process_bridge_OF_ranges(struct pci_controller *hose, - struct device_node *dev, int primary); - -/* Allocate & free a PCI host bridge structure */ -extern struct pci_controller *pcibios_alloc_controller(struct device_node *dev); -extern void pcibios_free_controller(struct pci_controller *phb); - -#ifdef CONFIG_PCI -extern unsigned long pci_address_to_pio(phys_addr_t address); -extern int pcibios_vaddr_is_ioport(void __iomem *address); -#else -static inline unsigned long pci_address_to_pio(phys_addr_t address) -{ - return (unsigned long)-1; -} -static inline int pcibios_vaddr_is_ioport(void __iomem *address) -{ - return 0; -} -#endif /* CONFIG_PCI */ - -#endif /* __KERNEL__ */ -#endif /* _ASM_POWERPC_PCI_BRIDGE_H */ |