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author | Yazen Ghannam <yazen.ghannam@amd.com> | 2019-02-28 15:36:10 +0000 |
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committer | Borislav Petkov <bp@suse.de> | 2019-03-27 00:13:25 +0100 |
commit | bdcee7747f5c490297665af0e1e0fbeb4368804d (patch) | |
tree | fd79cb8c3a582226be66d7b1cbf74e3afef6b326 /drivers/edac/i3000_edac.c | |
parent | 4d30d2bc3c23e63c2608bc5b03b0960490d5b740 (diff) |
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 <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Kim Phillips <kim.phillips@amd.com>
Cc: James Morse <james.morse@arm.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: https://lkml.kernel.org/r/20190228153558.127292-3-Yazen.Ghannam@amd.com
Diffstat (limited to 'drivers/edac/i3000_edac.c')
0 files changed, 0 insertions, 0 deletions