Define global uma_memory variables

Use of the uma_memory_base and _size variables is very scattered.
Implementation of setup_uma_memory() will appear in each northbridge.

It should be possible to do this setup entirely in northbridge
code and get rid of the globals in a follow-up.

Change-Id: I07ccd98c55a6bcaa8294ad9704b88d7afb341456
Signed-off-by: Kyösti Mälkki <>
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <>
50 files changed