[linux.git] / arch / mips / lib / iomap-pci.c

/*
 * Implement the default iomap interfaces
 *
 * (C) Copyright 2004 Linus Torvalds
 * (C) Copyright 2006 Ralf Baechle <[email protected]>
 * (C) Copyright 2007 MIPS Technologies, Inc.
 *     written by Ralf Baechle <[email protected]>
 */
#include <linux/pci.h>
#include <linux/module.h>
#include <asm/io.h>

void __iomem *__pci_ioport_map(struct pci_dev *dev,
			       unsigned long port, unsigned int nr)
{
	struct pci_controller *ctrl = dev->bus->sysdata;
	unsigned long base = ctrl->io_map_base;

	/* This will eventually become a BUG_ON but for now be gentle */
	if (unlikely(!ctrl->io_map_base)) {
		struct pci_bus *bus = dev->bus;
		char name[8];

		while (bus->parent)
			bus = bus->parent;

		ctrl->io_map_base = base = mips_io_port_base;

		sprintf(name, "%04x:%02x", pci_domain_nr(bus), bus->number);
		printk(KERN_WARNING "io_map_base of root PCI bus %s unset.  "
		       "Trying to continue but you better\nfix this issue or "
		       "report it to [email protected] or your "
		       "vendor.\n", name);
#ifdef CONFIG_PCI_DOMAINS
		panic("To avoid data corruption io_map_base MUST be set with "
		      "multiple PCI domains.");
#endif
	}

	return (void __iomem *) (ctrl->io_map_base + port);
}

void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
{
	iounmap(addr);
}

EXPORT_SYMBOL(pci_iounmap);
Commit	Line	Data
140c1729 RB	1	/*
	2	* Implement the default iomap interfaces
	3	*
	4	* (C) Copyright 2004 Linus Torvalds
	5	* (C) Copyright 2006 Ralf Baechle <[email protected]>
	6	* (C) Copyright 2007 MIPS Technologies, Inc.
	7	* written by Ralf Baechle <[email protected]>
	8	*/
	9	#include <linux/pci.h>
	10	#include <linux/module.h>
	11	#include <asm/io.h>
	12
0f3b3956 MT	13	void __iomem __pci_ioport_map(struct pci_dev dev,
0f3b3956 MT	14	unsigned long port, unsigned int nr)
140c1729 RB	15	{
	16	struct pci_controller *ctrl = dev->bus->sysdata;
	17	unsigned long base = ctrl->io_map_base;
	18
	19	/* This will eventually become a BUG_ON but for now be gentle */
	20	if (unlikely(!ctrl->io_map_base)) {
	21	struct pci_bus *bus = dev->bus;
	22	char name[8];
	23
	24	while (bus->parent)
	25	bus = bus->parent;
	26
	27	ctrl->io_map_base = base = mips_io_port_base;
	28
	29	sprintf(name, "%04x:%02x", pci_domain_nr(bus), bus->number);
	30	printk(KERN_WARNING "io_map_base of root PCI bus %s unset. "
	31	"Trying to continue but you better\nfix this issue or "
	32	"report it to [email protected] or your "
	33	"vendor.\n", name);
	34	#ifdef CONFIG_PCI_DOMAINS
	35	panic("To avoid data corruption io_map_base MUST be set with "
	36	"multiple PCI domains.");
	37	#endif
	38	}
	39
	40	return (void __iomem *) (ctrl->io_map_base + port);
	41	}
	42
140c1729 RB	43	void pci_iounmap(struct pci_dev dev, void __iomem addr)
	44	{
	45	iounmap(addr);
	46	}
	47
	48	EXPORT_SYMBOL(pci_iounmap);