IOREMAP_NOCACHE(9) Public Functions Provided IOREMAP_NOCACHE(9)
NAME
ioremap_nocache - map bus memory into CPU space
SYNOPSIS
void __iomem * ioremap_nocache(resource_size_t offset, unsigned long size);
ARGUMENTS
offset
bus address of the memory
size
size of the resource to map
DESCRIPTION
ioremap performs a platform specific sequence of operations to make bus memory CPU accessible via the readb/readw/readl/writeb/
writew/writel functions and the other mmio helpers. The returned address is not guaranteed to be usable directly as a virtual address.
If the area you are trying to map is a PCI BAR you should have a look at pci_iomap.
AUTHORS
Matthew Wilcox <matthew@wil.cx>
Author.
Alan Cox <alan@lxorguk.ukuu.org.uk>
Author.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 IOREMAP_NOCACHE(9)
