[mirror_ubuntu-artful-kernel.git] / arch / mips / lib / iomap-pci.c

/*
 * Implement the default iomap interfaces
 *
 * (C) Copyright 2004 Linus Torvalds
 * (C) Copyright 2006 Ralf Baechle <ralf@linux-mips.org>
 * (C) Copyright 2007 MIPS Technologies, Inc.
 *     written by Ralf Baechle <ralf@linux-mips.org>
 */
#include <linux/pci.h>
#include <linux/export.h>
#include <asm/io.h>

#ifdef CONFIG_PCI_DRIVERS_LEGACY

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 linux-mips@linux-mips.org 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);
}

#endif /* CONFIG_PCI_DRIVERS_LEGACY */

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 <ralf@linux-mips.org>
	6	* (C) Copyright 2007 MIPS Technologies, Inc.
	7	* written by Ralf Baechle <ralf@linux-mips.org>
	8	*/
	9	#include <linux/pci.h>
527581b9	10	#include <linux/export.h>
140c1729 RB	11	#include <asm/io.h>
140c1729 RB	12
c5611df9 PB	13	#ifdef CONFIG_PCI_DRIVERS_LEGACY
c5611df9 PB	14
0f3b3956 MT	15	void __iomem __pci_ioport_map(struct pci_dev dev,
0f3b3956 MT	16	unsigned long port, unsigned int nr)
140c1729 RB	17	{
	18	struct pci_controller *ctrl = dev->bus->sysdata;
	19	unsigned long base = ctrl->io_map_base;
	20
	21	/* This will eventually become a BUG_ON but for now be gentle */
	22	if (unlikely(!ctrl->io_map_base)) {
	23	struct pci_bus *bus = dev->bus;
	24	char name[8];
	25
	26	while (bus->parent)
	27	bus = bus->parent;
	28
	29	ctrl->io_map_base = base = mips_io_port_base;
	30
	31	sprintf(name, "%04x:%02x", pci_domain_nr(bus), bus->number);
	32	printk(KERN_WARNING "io_map_base of root PCI bus %s unset. "
	33	"Trying to continue but you better\nfix this issue or "
	34	"report it to linux-mips@linux-mips.org or your "
	35	"vendor.\n", name);
	36	#ifdef CONFIG_PCI_DOMAINS
	37	panic("To avoid data corruption io_map_base MUST be set with "
	38	"multiple PCI domains.");
	39	#endif
	40	}
	41
	42	return (void __iomem *) (ctrl->io_map_base + port);
	43	}
	44
c5611df9 PB	45	#endif /* CONFIG_PCI_DRIVERS_LEGACY */
c5611df9 PB	46
140c1729 RB	47	void pci_iounmap(struct pci_dev dev, void __iomem addr)
	48	{
	49	iounmap(addr);
	50	}
	51
	52	EXPORT_SYMBOL(pci_iounmap);