1. NAME▲

ioremap_nocache - map bus memory into CPU space

2. SYNOPSIS ▲

void __iomem * ioremap_nocache(resource_size_t  offset , unsigned long  size );

3. ARGUMENTS ▲

offset
    bus address of the memory

size
    size of the resource to map

4. 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.

5. AUTHORS ▲

Matthew Wilcox <>
    Author.

Alan Cox <>
    Author.

6. COPYRIGHT ▲