How can I access h/w registers in user space?

["Ardelean, Andrei" <Andrei.Ardelean@xxxxxxx>]

Hi,

1. My video processor has many h/w registers mapped in MIPS CPU physical
memory space. Do I have in Linux MIPS something like iopl() to allow me
to access h/w registers in user space? Is it anything similar available?

2. I studied mmap() solution but what I found unpleased is that I need
to malloc() space in user space equal to the IO memory space I want to
access which it is quite lot and it takes from system DDR RAM available
I have here. What I need is just to access a physical space which I know
that is mapped on internal registers.     

Thanks,
Andrei