diff options
Diffstat (limited to 'arch/parisc/kernel/pci.c')
| -rw-r--r-- | arch/parisc/kernel/pci.c | 85 | 
1 files changed, 27 insertions, 58 deletions
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c index 9efd9740531..64f2764a8ce 100644 --- a/arch/parisc/kernel/pci.c +++ b/arch/parisc/kernel/pci.c @@ -16,7 +16,6 @@  #include <linux/types.h>  #include <asm/io.h> -#include <asm/system.h>  #include <asm/superio.h>  #define DEBUG_RESOURCES 0 @@ -140,11 +139,6 @@ void pcibios_fixup_bus(struct pci_bus *bus)  } -char *pcibios_setup(char *str) -{ -	return str; -} -  /*   * Called by pci_set_master() - a driver interface.   * @@ -195,58 +189,6 @@ void __init pcibios_init_bus(struct pci_bus *bus)  	pci_write_config_word(dev, PCI_BRIDGE_CONTROL, bridge_ctl);  } -/* called by drivers/pci/setup-bus.c:pci_setup_bridge().  */ -void __devinit pcibios_resource_to_bus(struct pci_dev *dev, -		struct pci_bus_region *region, struct resource *res) -{ -#ifdef CONFIG_64BIT -	struct pci_hba_data *hba = HBA_DATA(dev->bus->bridge->platform_data); -#endif - -	if (res->flags & IORESOURCE_IO) { -		/* -		** I/O space may see busnumbers here. Something -		** in the form of 0xbbxxxx where bb is the bus num -		** and xxxx is the I/O port space address. -		** Remaining address translation are done in the -		** PCI Host adapter specific code - ie dino_out8. -		*/ -		region->start = PCI_PORT_ADDR(res->start); -		region->end   = PCI_PORT_ADDR(res->end); -	} else if (res->flags & IORESOURCE_MEM) { -		/* Convert MMIO addr to PCI addr (undo global virtualization) */ -		region->start = PCI_BUS_ADDR(hba, res->start); -		region->end   = PCI_BUS_ADDR(hba, res->end); -	} - -	DBG_RES("pcibios_resource_to_bus(%02x %s [%lx,%lx])\n", -		dev->bus->number, res->flags & IORESOURCE_IO ? "IO" : "MEM", -		region->start, region->end); -} - -void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, -			      struct pci_bus_region *region) -{ -#ifdef CONFIG_64BIT -	struct pci_hba_data *hba = HBA_DATA(dev->bus->bridge->platform_data); -#endif - -	if (res->flags & IORESOURCE_MEM) { -		res->start = PCI_HOST_ADDR(hba, region->start); -		res->end = PCI_HOST_ADDR(hba, region->end); -	} - -	if (res->flags & IORESOURCE_IO) { -		res->start = region->start; -		res->end = region->end; -	} -} - -#ifdef CONFIG_HOTPLUG -EXPORT_SYMBOL(pcibios_resource_to_bus); -EXPORT_SYMBOL(pcibios_bus_to_resource); -#endif -  /*   * pcibios align resources() is called every time generic PCI code   * wants to generate a new address. The process of looking for @@ -278,6 +220,33 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res,  } +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 prot; + +	/* +	 * I/O space can be accessed via normal processor loads and stores on +	 * this platform but for now we elect not to do this and portable +	 * drivers should not do this anyway. +	 */ +	if (mmap_state == pci_mmap_io) +		return -EINVAL; + +	if (write_combine) +		return -EINVAL; + +	/* +	 * Ignore write-combine; for now only return uncached mappings. +	 */ +	prot = pgprot_val(vma->vm_page_prot); +	prot |= _PAGE_NO_CACHE; +	vma->vm_page_prot = __pgprot(prot); + +	return remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff, +		vma->vm_end - vma->vm_start, vma->vm_page_prot); +} +  /*   * A driver is enabling the device.  We make sure that all the appropriate   * bits are set to allow the device to operate as the driver is expecting.  | 
