This was too hard to split ... this adds a number of features
to the SCOM user interface:
- Support for indirect SCOMs
- read()/write() interface now handle errors and retries
- New ioctl() "raw" interface for use by debuggers
Signed-off-by: Benjamin Herrenschmidt <[email protected]>
Reviewed-by: Eddie James <[email protected]>
Reviewed-by: Alistair Popple <[email protected]>