mirror of https://gitee.com/openkylin/linux.git
46 lines
917 B
C
46 lines
917 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* linux/arch/arm/mm/iomap.c
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*
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* Map IO port and PCI memory spaces so that {read,write}[bwl] can
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* be used to access this memory.
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*/
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/ioport.h>
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#include <linux/io.h>
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#include <asm/vga.h>
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unsigned long vga_base;
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EXPORT_SYMBOL(vga_base);
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#ifdef __io
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void __iomem *ioport_map(unsigned long port, unsigned int nr)
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{
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return __io(port);
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}
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EXPORT_SYMBOL(ioport_map);
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void ioport_unmap(void __iomem *addr)
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{
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}
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EXPORT_SYMBOL(ioport_unmap);
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#endif
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#ifdef CONFIG_PCI
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unsigned long pcibios_min_io = 0x1000;
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EXPORT_SYMBOL(pcibios_min_io);
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unsigned long pcibios_min_mem = 0x01000000;
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EXPORT_SYMBOL(pcibios_min_mem);
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void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
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{
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if ((unsigned long)addr >= VMALLOC_START &&
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(unsigned long)addr < VMALLOC_END)
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iounmap(addr);
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}
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EXPORT_SYMBOL(pci_iounmap);
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#endif
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