1IOREMAP_NOCACHE(9) Public Functions Provided IOREMAP_NOCACHE(9)
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6 ioremap_nocache - map bus memory into CPU space
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9 void __iomem * ioremap_nocache(resource_size_t offset,
10 unsigned long size);
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13 offset
14 bus address of the memory
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16 size
17 size of the resource to map
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20 ioremap performs a platform specific sequence of operations to make bus
21 memory CPU accessible via the readb/readw/readl/writeb/ writew/writel
22 functions and the other mmio helpers. The returned address is not
23 guaranteed to be usable directly as a virtual address.
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25 If the area you are trying to map is a PCI BAR you should have a look
26 at pci_iomap.
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29 Matthew Wilcox <matthew@wil.cx>
30 Author.
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32 Alan Cox <alan@lxorguk.ukuu.org.uk>
33 Author.
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36Kernel Hackers Manual 3.10 June 2019 IOREMAP_NOCACHE(9)