EDAC/amd64: Support more than two Unified Memory Controllers

The first few models of Family 17h all had 2 Unified Memory Controllers
per Die, so this was treated as a fixed value. However, future systems
may have more Unified Memory Controllers per Die.

Related to this, the channel number and base address of a Unified Memory
Controller were found by matching on fixed, known values. However,
current and future systems follow this pattern for the channel number
and base address of a Unified Memory Controller: 0xYXXXXX, where Y is
the channel number. So matching on hardcoded values is not necessary.

Set the number of Unified Memory Controllers at driver init time based
on the family/model. Also, update the functions that find the channel
number and base address of a Unified Memory Controller to support more
than two.

 [ bp: Move num_umcs into the .c file and simplify comment. ]

Signed-off-by: Yazen Ghannam <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Tested-by: Kim Phillips <[email protected]>
Cc: James Morse <[email protected]>
Cc: Mauro Carvalho Chehab <[email protected]>
Cc: linux-edac <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]

0 files changed, 0 insertions, 0 deletions