diff options
| -rw-r--r-- | arch/powerpc/kernel/pci-common.c | 23 | ||||
| -rw-r--r-- | include/asm-powerpc/pci-bridge.h | 20 |
2 files changed, 43 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index fe7d1255e11..74a8fd450f6 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -101,6 +101,29 @@ void pcibios_free_controller(struct pci_controller *phb) kfree(phb); } +int pcibios_vaddr_is_ioport(void __iomem *address) +{ + int ret = 0; + struct pci_controller *hose; + unsigned long size; + + spin_lock(&hose_spinlock); + list_for_each_entry(hose, &hose_list, list_node) { +#ifdef CONFIG_PPC64 + size = hose->pci_io_size; +#else + size = hose->io_resource.end - hose->io_resource.start + 1; +#endif + if (address >= hose->io_base_virt && + address < (hose->io_base_virt + size)) { + ret = 1; + break; + } + } + spin_unlock(&hose_spinlock); + return ret; +} + /* * Return the domain number for this bus. */ diff --git a/include/asm-powerpc/pci-bridge.h b/include/asm-powerpc/pci-bridge.h index d53e0eb1de1..e909769b641 100644 --- a/include/asm-powerpc/pci-bridge.h +++ b/include/asm-powerpc/pci-bridge.h @@ -71,6 +71,14 @@ static inline struct pci_controller *pci_bus_to_host(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. */ int early_read_config_byte(struct pci_controller *hose, int bus, int dev_fn, @@ -241,6 +249,13 @@ extern void pcibios_free_controller(struct pci_controller *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); @@ -271,11 +286,16 @@ extern struct pci_controller * pcibios_alloc_controller(struct device_node *dev); #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 |