tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * linux/arch/arm/mm/iomap.c
4 *
5 * Map IO port and PCI memory spaces so that {read,write}[bwl] can
6 * be used to access this memory.
7 */
8#include <linux/module.h>
9#include <linux/pci.h>
10#include <linux/ioport.h>
11#include <linux/io.h>
12
13unsigned long vga_base;
14EXPORT_SYMBOL(vga_base);
15
16#ifdef __io
17void __iomem *ioport_map(unsigned long port, unsigned int nr)
18{
19 return __io(port);
20}
21EXPORT_SYMBOL(ioport_map);
22
23void ioport_unmap(void __iomem *addr)
24{
25}
26EXPORT_SYMBOL(ioport_unmap);
27#endif
28
29#ifdef CONFIG_PCI
30unsigned long pcibios_min_io = 0x1000;
31EXPORT_SYMBOL(pcibios_min_io);
32
33unsigned long pcibios_min_mem = 0x01000000;
34EXPORT_SYMBOL(pcibios_min_mem);
35
36void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
37{
38 if ((unsigned long)addr >= VMALLOC_START &&
39 (unsigned long)addr < VMALLOC_END)
40 iounmap(addr);
41}
42EXPORT_SYMBOL(pci_iounmap);
43#endif