Release 4.14 arch/arm/mm/iomap.c

// SPDX-License-Identifier: GPL-2.0
/*
 *  linux/arch/arm/mm/iomap.c
 *
 * Map IO port and PCI memory spaces so that {read,write}[bwl] can
 * be used to access this memory.
 */
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/ioport.h>
#include <linux/io.h>


unsigned long vga_base;

EXPORT_SYMBOL(vga_base);

#ifdef __io


void __iomem *ioport_map(unsigned long port, unsigned int nr)
{
	return __io(port);
}
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EXPORT_SYMBOL(ioport_map);



void ioport_unmap(void __iomem *addr)
{
}
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EXPORT_SYMBOL(ioport_unmap);
#endif

#ifdef CONFIG_PCI

unsigned long pcibios_min_io = 0x1000;

EXPORT_SYMBOL(pcibios_min_io);


unsigned long pcibios_min_mem = 0x01000000;

EXPORT_SYMBOL(pcibios_min_mem);



void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
{
	if ((unsigned long)addr >= VMALLOC_START &&
	    (unsigned long)addr < VMALLOC_END)
		iounmap(addr);
}
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EXPORT_SYMBOL(pci_iounmap);
#endif
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Directory: arch/arm/mm

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