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@redhat.com>
- Author.