diff options
| author | Yazen Ghannam <yazen.ghannam@amd.com> | 2022-02-02 14:43:06 +0000 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-02-23 21:53:45 +0100 |
| commit | 75aeaaf23def967853c8d1cfb513a6842dbc232e (patch) | |
| tree | e3dd9e36bf370187cad78e6c14f8322fae3c2d2d /drivers/edac/amd64_edac.h | |
| parent | cfb92440ee71adcc2105b0890bb01ac3cddb8507 (diff) | |
EDAC/amd64: Set memory type per DIMM
Current AMD systems allow mixing of DIMM types within a system. However,
DIMMs within a channel, i.e. managed by a single Unified Memory
Controller (UMC), must be of the same type.
Handle this possible configuration by checking and setting the memory
type for each individual "UMC" structure.
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: William Roche <william.roche@oracle.com>
Link: https://lore.kernel.org/r/20220202144307.2678405-2-yazen.ghannam@amd.com
Diffstat (limited to 'drivers/edac/amd64_edac.h')
| -rw-r--r-- | drivers/edac/amd64_edac.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h index 352bda9803f6..6b8742369f9d 100644 --- a/drivers/edac/amd64_edac.h +++ b/drivers/edac/amd64_edac.h @@ -344,6 +344,9 @@ struct amd64_umc { u32 sdp_ctrl; /* SDP Control reg */ u32 ecc_ctrl; /* DRAM ECC Control reg */ u32 umc_cap_hi; /* Capabilities High reg */ + + /* cache the dram_type */ + enum mem_type dram_type; }; struct amd64_pvt { @@ -391,7 +394,12 @@ struct amd64_pvt { /* place to store error injection parameters prior to issue */ struct error_injection injection; - /* cache the dram_type */ + /* + * cache the dram_type + * + * NOTE: Don't use this for Family 17h and later. + * Use dram_type in struct amd64_umc instead. + */ enum mem_type dram_type; struct amd64_umc *umc; /* UMC registers */ |