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
13 #include <asm/vga.h>
14
15 unsigned long vga_base;
16 EXPORT_SYMBOL(vga_base);
17
18 #ifdef __io
19 void __iomem *ioport_map(unsigned long port, unsigned int nr)
20 {
21 return __io(port);
22 }
23 EXPORT_SYMBOL(ioport_map);
24
25 void ioport_unmap(void __iomem *addr)
26 {
27 }
28 EXPORT_SYMBOL(ioport_unmap);
29 #endif
30
31 #ifdef CONFIG_PCI
32 unsigned long pcibios_min_io = 0x1000;
33 EXPORT_SYMBOL(pcibios_min_io);
34
35 unsigned long pcibios_min_mem = 0x01000000;
36 EXPORT_SYMBOL(pcibios_min_mem);
37
38 void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
39 {
40 if ((unsigned long)addr >= VMALLOC_START &&
41 (unsigned long)addr < VMALLOC_END)
42 iounmap(addr);
43 }
44 EXPORT_SYMBOL(pci_iounmap);
45 #endif
46
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